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Bano N, Gupta A, Amir M, Zaheer MR, Roohi R. Malignance-restriction activity exhibited by bioactive compounds of selected actinobacteria as silver nanoparticles against A549 lung cancer cell lines. Cell Biochem Funct 2024; 42:e3988. [PMID: 38532684 DOI: 10.1002/cbf.3988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/08/2024] [Accepted: 03/10/2024] [Indexed: 03/28/2024]
Abstract
This article deals with the antibacterial and anticancer potential of secondary metabolites produced by actinomycetes also reported as actinobacteria, Microbacterium proteolyticum (MN560041), and Streptomycetes rochei, where preliminary studies were done with the well diffusion method. These actinobacteria's silver nanoparticles were synthesized and characterized using transmission electron microscopy (TEM) and UV-Visible spectroscopy. Anticancer was measured using the MTT test, reactive oxygen species (ROS) generation measured with DCFDA, mitochondrial membrane potential (MMP) measurement, and DAPI fluorescence intensity activity was measured in treated and non-treated cancerous cells. The IC50 value for 5-FU (a), LA2(O) (b), LA2(R) (c), LA2(ON) (d), and LA2(RN) (e) was obtained at 3.91 μg/mL (52.73% cell viability), 56.12 μg/mL (52.35% cell viability), 44.90 μg/mL (52.3% cell viability), 3.45 μg/mL (50.25% cell viability), and 8.05 μg/mL (48.72% cell viability), respectively. TEM micrographs revealed discrete, well-separated AgNPs particles of size 7.88 ± 2 to 12.86 ± 0.24 nm. Gas chromatography-mass spectrometry was also performed to detect the compounds in bioactive metabolites where n-hexadecanoic acid was obtained as the most significant one. MTT test showed a substantial decline in A549 cell viability (up to 48.72%), 2.75-fold increase in ROS generation was noticed in comparison to untreated A549 lung cancer cells when measured with DCFDA. A total of 0.31-fold decrease in MMP and 1.74-fold increase in DAPI fluorescence intensity compared to untreated A549 lung cancer cells suggests that the synthesized nanoparticles promote apoptosis in cancerous cells. Our findings suggests that the secondary metabolites of M. proteolyticum and S. rochei in nanoparticle form can be used as a significant compound against lung cancers.
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Affiliation(s)
- Naushin Bano
- Department of Bioengineering, Integral University, Lucknow, Uttar Pradesh, India
| | - Anamika Gupta
- Department of Chemistry, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohammad Amir
- Department of Bioengineering, Integral University, Lucknow, Uttar Pradesh, India
| | - Mohd Rehan Zaheer
- Department of Chemistry, R.M.P.S.P. Girls Post Graduate College, Basti, Uttar Pradesh, India
| | - Roohi Roohi
- Department of Bioengineering, Integral University, Lucknow, Uttar Pradesh, India
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2
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Belji Kangarlou M, Khavanin A, Nadri F, Goodarzi Z, Karami E, Rashidy-Pour A, Kiani M, Hashemi Habybabady R. Noise and silver nanoparticles induce hepatotoxicity via CYP450/NF-Kappa B 2 and p53 signaling pathways in a rat model. Toxicol Ind Health 2024; 40:206-219. [PMID: 38358440 DOI: 10.1177/07482337241233317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Co-exposure to noise and nanomaterials, such as silver nanoparticles (Silver-NPs), is a common occurrence in today's industries. This study aimed to investigate the effects of exposure to noise and the administration of silver-NPs on the liver tissue of rats. Thirty-six adult male albino Wistar rats were randomly divided into six groups: a control group (administered saline intraperitoneally), two groups administered different doses of Silver-NPs (50 mg/kg and 100 mg/kg, 5 days a week for 28 days), two groups exposed to noise in addition to Silver-NPs (at the same doses as mentioned before), and a group exposed only to noise (104 dB, 6 hours a day, 5 days a week for 4 weeks). Blood samples were taken to assess hepatic-functional alterations, such as serum ALP, ALT, and AST levels. Additionally, biochemical parameters (MDA, GPX, and CAT) and the silver concentration in the liver were measured. Histopathological analysis, mRNA expression (P53 and NF-κB), protein expression (CYP450), and liver weight changes in rats were also documented. The study found that the administration of Silver-NPs and exposure to noise resulted in elevated levels of ALP, ALT, AST, and MDA (p < .01). Conversely, GPX and CAT levels decreased in all groups compared with the control group (p < .0001). There was a significant increase (p < .05) in liver weight and silver concentration in the liver tissues of groups administered Silver-NPs (50 mg/kg) plus noise exposure, Silver-NPs (100 mg/kg), and Silver-NPs (100 mg/kg) plus noise exposure, respectively. The expression rate of P53, NF-κB, and cytochromes P450 (CYPs-450) was increased in the experimental groups (p < .05). These findings were further confirmed by histopathological changes. In conclusion, this study demonstrated that exposure to noise and the administration of Silver-NPs exacerbated liver damage by increasing protein and gene expression, causing hepatic necrosis, altering biochemical parameters, and affecting liver weight.
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Affiliation(s)
- Marzieh Belji Kangarlou
- Department of Occupational Health Engineering, Faculty of Medical Sciences, Tarbiat Modarres University, Tehran, Iran
| | - Ali Khavanin
- Department of Occupational Health Engineering, Faculty of Medical Sciences, Tarbiat Modarres University, Tehran, Iran
| | - Farshad Nadri
- Department of Occupational Health Engineering, Faculty of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Zahra Goodarzi
- Department of Occupational Health Engineering, Faculty of Medical Sciences, Tarbiat Modarres University, Tehran, Iran
| | - Esmaeil Karami
- Department of Occupational Health Engineering, School of Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Rashidy-Pour
- Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran
| | - Mehrafarin Kiani
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Raheleh Hashemi Habybabady
- Health Promotion Research Centre, Department of Occupational Health Engineering, Zahedan University of Medical Sciences, Zahedan, Iran
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P K, K S, M A, Egbuna C. Preparation of bio-synthesized Ag nanoparticles and assessment of their antidiabetic and antioxidant potential against STZ-induced diabetic albino rats. J Biomater Sci Polym Ed 2024; 35:535-558. [PMID: 38234041 DOI: 10.1080/09205063.2024.2301808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 12/29/2023] [Indexed: 01/19/2024]
Abstract
Bio-synthesized silver nanoparticles (AgNPs) were successfully obtained using the leaf extract from Ventilago maderaspatana. Extensive analysis was conducted to evaluate the physical and chemical characteristics of the bioderived AgNPs. XRD analysis confirmed their cubic structure, and revealed a well-defined size distribution with average crystallite size of 11.7 nm. FE-SEM and TEM images visually supported the observed size range. The presence of plant-mediated phytochemicals on the surface of AgNPs was confirmed through DLS, FTIR, and TGA/DTA studies. To assess their antidiabetic potential, rats were induced with streptozotocin, resulting in elevated levels of biochemical parameters associated with diabetes. Conversely, serum insulin levels (2.50 ± 0.55) and glucokinase activity (64.50 ± 8.66) decreased. However, treatment with AgNPs demonstrated a dose-dependent reduction in blood glucose, total protein, albumin, and HbA1c levels, effectively restoring them to normal ranges. Moreover, the treatment significantly increased insulin levels (7.55 ± 0.63) and glucokinase activity (121.50 ± 4.60), indicating the antidiabetic potential of V. maderaspatana-mediated AgNPs. Notably, the exitance of phytochemicals, like flavonoids and phenols, on the surface of AgNPs facilitated their ability to neutralize reactive oxygen species (ROS) through electron donation. This property enhanced their overall antidiabetic efficiency.
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Affiliation(s)
- Karuppannan P
- PG & Research Department of Zoology, Vivekanandha College for Women, Thiruchengodu, Tamilnadu, India
| | - Saravanan K
- PG and Research Department of Zoology, Nehru Memorial College (Autonomous), Puthanampatti, Thiruchirappalli, Tamilnadu, India
| | - Ashokkumar M
- Department of Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamilnadu, India
| | - Chukwuebuka Egbuna
- Department of Biochemistry, Faculty of Natural Sciences, Chukwuemeka Odumegwu Ojukwu University, Igbariam, Nigeria
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4
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Chen C, Fan Q, Li Z, Cai Z, Ye Z, Yin Y. Colorimetric Pressure Sensing by Plasmonic Decoupling of Silver Nanoparticles Confined within Polymeric Nanoshells. Nano Lett 2024; 24:3737-3743. [PMID: 38498412 DOI: 10.1021/acs.nanolett.4c00268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Employing a plasmonic decoupling mechanism, we report the design of a colorimetric pressure sensor that can respond to applied pressure with instant color changes. The sensor consists of a thin film of stacked uniform resorcinol-formaldehyde nanoshells with their inner surfaces functionalized with silver nanoparticles. Upon compression, the flexible polymer nanoshells expand laterally, inducing plasmonic decoupling between neighboring silver nanoparticles and a subsequent blue-shift. The initial color of the sensor is determined by the extent of plasmonic coupling, which can be controlled by tuning the interparticle distance through a seeded growth process. The sensing range can be conveniently customized by controlling the polymer shell thickness or incorporating hybrid nanoshells into various polymer matrices. The new colorimetric pressure sensors are easy to fabricate and highly versatile, allow for convenient tuning of the sensing range, and feature significant color shifts, holding great promise for a wide range of practical applications.
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Affiliation(s)
- Chen Chen
- Department of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Qingsong Fan
- Department of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Zhiwei Li
- Department of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Zepeng Cai
- Department of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Zuyang Ye
- Department of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, Riverside, California 92521, United States
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Hermsen A, Hertel F, Wilbert D, Gronau T, Mayer C, Jaeger M. Pesticide Identification Using Surface-Enhanced Raman Spectroscopy and Density Functional Theory Calculations: From Structural Insights to On-Site Detection. Appl Spectrosc 2024:37028241236501. [PMID: 38529545 DOI: 10.1177/00037028241236501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Pesticides play an important role in conventional agriculture. Yet, their harmful effects on the environment are becoming increasingly apparent. The occurrence of pesticides is hence being monitored worldwide. For fast, easy, yet sensitive identification, surface-enhanced Raman spectroscopy (SERS) is a powerful tool. In this study, a method is introduced that may be amended to in-field detection of pesticides. Gold and silver nanoparticles were synthesized, size-tailored, and characterized. The herbicide paraquat and the fungicide thiram served as model compounds. The preparation yielded reproducible SERS spectra. Using quantum chemical computation, Raman and SERS spectra were calculated and analyzed. The interpretation of vibrational modes in combination with SERS enhancement and attenuation allowed us to identify compound-specific bands. The assignment was interpreted in terms of the orientation of paraquat and thiram on the gold and silver nanoparticle surfaces. Paraquat preferred a co-planar arrangement parallel to the gold nanoparticle surface and a head-on orientation on the silver nanoparticle. For thiram, breaking of the disulfide bond was recognized, such that interaction with the surface occurred via the sulfur atoms. Successful detection of the pesticides after recollection from vegetable leaves demonstrated the method's applicability for pesticide identification.
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Affiliation(s)
- Andrea Hermsen
- Department of Chemistry and ILOC, Niederrhein University of Applied Sciences, Krefeld, Germany
- Institute of Physical Chemistry, University Duisburg-Essen, Essen, Germany
| | - Florian Hertel
- Department of Chemistry and ILOC, Niederrhein University of Applied Sciences, Krefeld, Germany
| | - Dominik Wilbert
- Department of Chemistry and ILOC, Niederrhein University of Applied Sciences, Krefeld, Germany
| | - Till Gronau
- Department of Chemistry and ILOC, Niederrhein University of Applied Sciences, Krefeld, Germany
| | - Christian Mayer
- Institute of Physical Chemistry, University Duisburg-Essen, Essen, Germany
| | - Martin Jaeger
- Department of Chemistry and ILOC, Niederrhein University of Applied Sciences, Krefeld, Germany
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6
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Kaya MM. Silver nanoparticles stimulate 5-Fluorouracil-induced colorectal cancer cells to kill through the upregulation TRPV1-mediated calcium signaling pathways. Cell Biol Int 2024. [PMID: 38499507 DOI: 10.1002/cbin.12141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/25/2024] [Accepted: 02/05/2024] [Indexed: 03/20/2024]
Abstract
The involvement of the TRP vanilloid 1 (TRPV1) cation channel on the 5-Fluorouracil (5-FU)-caused Ca2+ signals through the activation of the apoptotic signaling pathway and stimulating the mitochondrial Ca2+ and Zn2+ accumulation-induced reactive oxygen species (ROS) productions in several cancer cells, except the colorectal cancer (HT-29) cell line, was recently reported. I aimed to investigate the action of silver nanoparticles (SiNPs) and 5-FU incubations through the activation of TRPV1 on ROS, apoptosis, and cell death in the HT-29 cell line. The cells were divided into four groups: control, SiNP (100 µM for 48 h), 5-FU (25 μM for 24 h), and 5-FU + SiNP. SiNP treatment through TRPV1 activation (via capsaicin) stimulated the oxidant and apoptotic actions of 5-FU in the cells, whereas they were diminished in the cells by the TRPV1 antagonist (capsazepine) treatment. The apoptotic and cell death actions of 5-FU were determined by increasing the propidium iodide/Hoechst rate, caspase-3, -8, and -9 activations, mitochondrial membrane depolarization, lipid peroxidation, and ROS, but decreasing the glutathione and glutathione peroxidase. The increase of cytosolic free Ca2+ and Zn2+ into mitochondria via the stimulation of TRPV1 current density increased oxidant and apoptotic properties of 5-FU in the cells. For the therapy of HT-29 tumor cells, I found that the combination of SiNPs and 5-FU was synergistic via TRPV1 activation.
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Affiliation(s)
- Müge Mavioğlu Kaya
- Department of Molecular Biology and Genetics, Faculty of Science, Kafkas University, Kars, Türkiye
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Saied E, Abdel-Maksoud MA, Alfuraydi AA, Kiani BH, Bassyouni M, Al-Qabandi OA, Bougafa FHE, Badawy MSEM, Hashem AH. Endophytic Aspergillus hiratsukae mediated biosynthesis of silver nanoparticles and their antimicrobial and photocatalytic activities. Front Microbiol 2024; 15:1345423. [PMID: 38533339 PMCID: PMC10964773 DOI: 10.3389/fmicb.2024.1345423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/20/2024] [Indexed: 03/28/2024] Open
Abstract
In the current study, endophytic Aspergillus hiratsukae was used for the biosynthesis of silver nanoparticles (Ag-NPs) for the first time. The characterizations were performed using X ray diffraction (XRD), Transmission electron microscopy (TEM), Scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX), Dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FT-IR), and UV-Vis spectroscopy. The obtained results demonstrated the successful formation of crystalline, spherical Ag-NPs with particle diameters ranging from 16 to 31 nm. The FT-IR studied and displayed the various functional groups involved, which played a role in capping and reducing agents for Ag-NPs production. The SEM-EDX revealed that the main constituent of the AS-formed sample was primarily Ag, with a weight percentage of 64.2%. The mycosynthesized Ag-NPs were assessed for antimicrobial as well as photocatalytic activities. The antimicrobial results indicated that the synthesized Ag-NPs possess notable antibacterial efficacy against Staphylococcus aureus, Bacillus subtilis, and Escherichia coli, with minimum inhibitory concentrations (MICs) of Ag-NPs ranging from 62.5 to 250 μg/mL. Moreover, the biosynthesized Ag-NPs demonstrated weak antifungal activity against Aspergillus brasiliensis and Candida albicans, with MICs of 500 and 1,000 μg/mL, respectively. In addition, the mycosynthesized Ag-NPs exhibited photocatalytic activity toward acid black 2 (nigrosine) dye under both light and dark stimulation. Notably, After 300 min exposure to light, the nigrosine dye was degraded by 93%. In contrast, 51% degradation was observed after 300 min in darkness. In conclusion, Ag-NPs were successfully biosynthesized using endophytic A. hiratsukae and also exhibited antimicrobial and photocatalytic activities that can be used in environmental applications.
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Affiliation(s)
- Ebrahim Saied
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Egypt
| | - Mostafa A. Abdel-Maksoud
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Akram A. Alfuraydi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Bushra Hafeez Kiani
- Department of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, MA, United States
| | - Mohamed Bassyouni
- Department of Chemical Engineering, Faculty of Engineering, Port Said University, Port Said, Egypt
- Center of Excellence in Membrane-Based Water Desalination Technology for Testing and Characterization (CEMTC), Port Said University, Port Said, Egypt
| | - Osama A. Al-Qabandi
- College of Engineering and Technology, American University of the Middle East, Egaila, Kuwait
| | - Fathia H. E. Bougafa
- Department of Microbiology, Faculty of Science, Tobruk University, Tobruk, Libya
| | - Mona Shaban E. M. Badawy
- Department of Microbiology and Immunology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Amr H. Hashem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Egypt
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Vasilaki D, Bakopoulou A, Papadopoulou L, Papachristou E, Michailidis N, Tsouknidas A, Dratsios S, Taylor T, Michalakis K. Viability and Proliferation Assessment of Gingival Fibroblasts Cultured on Silver Nanoparticle-doped Ti-6Al-4V Surfaces. Int J Oral Maxillofac Implants 2024; 0:5061281. [PMID: 38457263 DOI: 10.11607/jomi.10496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024] Open
Abstract
PURPOSE The aim of this study was to investigate the biocompatibility of AgNPs-doped Ti6Al4V surfaces, by evaluating the viability and proliferation rate of human gingival fibroblasts (HGF) -as dominant cells of peri-implant soft tissues- seeded on the modified surfaces. MATERIALS AND METHODS AgNPs of 8 and 30nm size distributions were incorporated onto Ti6Al4V specimen surfaces by electrochemical deposition, using colloid silver dispersions with increasing AgNP concentrations of 100, 200 and 300 ppm. One control and six experimental groups were included in the study: (i) Control (Ti6Al4V), (ii) 8 nm/100 ppm, (iii) 8 nm/200 ppm, (iv) 8 nm/300 ppm, (v) 30 nm/100 ppm, (vi) 30 nm/200 ppm, (vii) 30 nm/300 ppm. Human Gingival Fibroblasts (HGF) cell primary cultures were isolated from periodontal-healthy donor patients. AgNP-doped Ti-6Al-4V specimens' cytotoxicity against HGF was assessed by the MTT and BrdU assay tests. Calcein AM and Ethidium Homodimer- EthD1 fluorescent stains were used to determine live and dead cells. HGFs' morphology and attachment properties were determined by means of SEM. RESULTS EDX analysis confirmed the presence of AgNPs on the specimens. MTT revealed that cells seeded on AgNPs specimen discs of both tested sizes and all concentrations presented a decreased cellular metabolic activity compared to the cells seeded on the control discs. All concentrations of AgNPs of both sizes affected cell proliferation rate compared to the control group, as revealed by the BrdU assay. Overall, cytotoxicity of the modified Ti6Al4V surfaces depended on cell exposure time. Observation by confocal microscopy confirmed the results of MTT and BrdU assay tests. Specifically, most cells remained alive throughout the 72h culture period. SEM microphotographs revealed that adjacent cells form bonds with each other, creating confluent layers of conjugated cells. CONCLUSIONS The findings of the present study indicate that Ti6Al4V surfaces modified with 8 nm and 30 nm AgNPs at concentrations of 100 ppm, 200 ppm, and 300 ppm do not produce any serious cytotoxicity to HGFs. The initial arrest of HGFs proliferation rate was recovered at 72 h. These results, in combination with those of the same research group, on the antibacterial activity against common periodontal pathogens, suggest that AgNP-doped Ti6Al4V surfaces are potential candidates for use in implant abutments for preventing peri-implant diseases.
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Barbinta-Patrascu ME, Nichita C, Bita B, Antohe S. Biocomposite Materials Derived from Andropogon halepensis: Eco-Design and Biophysical Evaluation. Materials (Basel) 2024; 17:1225. [PMID: 38473696 DOI: 10.3390/ma17051225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/01/2024] [Accepted: 03/03/2024] [Indexed: 03/14/2024]
Abstract
This research work presents a "green" strategy of weed valorization for developing silver nanoparticles (AgNPs) with promising interesting applications. Two types of AgNPs were phyto-synthesized using an aqueous leaf extract of the weed Andropogon halepensis L. Phyto-manufacturing of AgNPs was achieved by two bio-reactions, in which the volume ratio of (phyto-extract)/(silver salt solution) was varied. The size and physical stability of Andropogon-AgNPs were evaluated by means of DLS and zeta potential measurements, respectively. The phyto-developed nanoparticles presented good free radicals-scavenging properties (investigated via a chemiluminescence technique) and also urease inhibitory activity (evaluated using the conductometric method). Andropogon-AgNPs could be promising candidates for various bio-applications, such as acting as an antioxidant coating for the development of multifunctional materials. Thus, the Andropogon-derived samples were used to treat spider silk from the spider Pholcus phalangioides, and then, the obtained "green" materials were characterized by spectral (UV-Vis absorption, FTIR ATR, and EDX) and morphological (SEM) analyses. These results could be exploited to design novel bioactive materials with applications in the biomedical field.
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Affiliation(s)
- Marcela-Elisabeta Barbinta-Patrascu
- Department of Electricity, Solid-State Physics and Biophysics, Faculty of Physics, University of Bucharest, 405 Atomistilor Street, 077125 Magurele, Romania
| | - Cornelia Nichita
- CTT-3Nano-SAE Research Center, Faculty of Physics, ICUB, University of Bucharest, MG-38, 405 Atomistilor Street, 077125 Magurele, Romania
- National Institute for Chemical-Pharmaceutical Research and Development, 112 Vitan Avenue, 031299 Bucharest, Romania
| | - Bogdan Bita
- Department of Electricity, Solid-State Physics and Biophysics, Faculty of Physics, University of Bucharest, 405 Atomistilor Street, 077125 Magurele, Romania
- National Institute for Lasers, Plasma and Radiation Physics, Magurele, 077125 Bucharest, Romania
| | - Stefan Antohe
- Department of Electricity, Solid-State Physics and Biophysics, Faculty of Physics, University of Bucharest, 405 Atomistilor Street, 077125 Magurele, Romania
- Academy of Romanian Scientists, Ilfov Street 3, 050045 Bucharest, Romania
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Canup B, Rogers P, Paredes A, Manheng W, Lyn-Cook B, Fahmi T. Investigation of sex-based differences in the immunotoxicity of silver nanoparticles. Nanotoxicology 2024:1-26. [PMID: 38444264 DOI: 10.1080/17435390.2024.2323070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/21/2024] [Indexed: 03/07/2024]
Abstract
The growing application of silver nanoparticles (AgNPs) in consumer, healthcare, and industrial products has raised concern over potential health implications due to increasing exposure. The evaluation of the immune response to nanomaterials is one of the key criteria to assess their biocompatibility. There are well-recognized sex-based differences in innate and adaptive immune responses. However, there is limited information available using human models. The aim was to investigate the potential sex-based differences in immune functions after exposure to AgNPs using human peripheral blood mononuclear cells (PBMCs) and plasma from healthy donors. These functions include inflammasome activation, cytokine expression, leukocyte proliferation, chemotaxis, plasma coagulation, and complement activation. AgNPs were characterized by dynamic light scattering and transmission electron microscopy. Inflammasome activation by AgNPs was measured after 6- and 24-hours incubations. AgNPs-induced inflammasome activation was significantly higher in the females, especially for the 6-hour exposure. No sex-based differences were observed for Ag ions controls. Younger donors exhibited significantly more inflammasome activation than older donors after 24-hours exposure. IL-10 was significantly suppressed in males and females after exposure. AgNPs suppressed leukocyte proliferation similarly in males and females. No chemoattractant effects, no alterations in plasma coagulation, or activation of the complement were observed after AgNPs exposure. In conclusion, the results highlight that there are distinct sex-based differences in inflammasome activation after exposure to AgNPs in human PBMCs. The results highlight the importance of considering sex-based differences in inflammasome activation induced by exposure to AgNPs in any future biocompatibility assessment for products containing AgNPs.
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Affiliation(s)
- Brandon Canup
- Division of Biochemical Toxicology, Office of Research, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Paul Rogers
- Division of Bioinformatics and Biostatistics, Office of Research, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Angel Paredes
- Nanotechnology Core Facility, Office of Scientific Coordination, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Wimolnut Manheng
- Division of Hematology Oncology Toxicology, Office of Oncologic Diseases, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Beverly Lyn-Cook
- Division of Biochemical Toxicology, Office of Research, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Tariq Fahmi
- Division of Biochemical Toxicology, Office of Research, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
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Nuti S, Fernández-Lodeiro A, Galhano J, Oliveira E, Duarte MP, Capelo-Martínez JL, Lodeiro C, Fernández-Lodeiro J. Tailoring Mesoporous Silica-Coated Silver Nanoparticles and Polyurethane-Doped Films for Enhanced Antimicrobial Applications. Nanomaterials (Basel) 2024; 14:462. [PMID: 38470791 DOI: 10.3390/nano14050462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024]
Abstract
The global increase in multidrug-resistant bacteria poses a challenge to public health and requires the development of new antibacterial materials. In this study, we examined the bactericidal properties of mesoporous silica-coated silver nanoparticles, varying the core sizes (ca. 28 nm and 51 nm). We also investigated gold nanoparticles (ca. 26 nm) coated with mesoporous silica as possible inert metal cores. To investigate the modification of antimicrobial activity after the surface charge change, we used silver nanoparticles with a silver core of 28 nm coated with a mesoporous shell (ca. 16 nm) and functionalized with a terminal amine group. Furthermore, we developed a facile method to create mesoporous silica-coated silver nanoparticles (Ag@mSiO2) doped films using polyurethane (IROGRAN®) as a polymer matrix via solution casting. The antibacterial effects of silver nanoparticles with different core sizes were analyzed against Gram-negative and Gram-positive bacteria relevant to the healthcare and food industry. The results demonstrated that gold nanoparticles were inert, while silver nanoparticles exhibited antibacterial effects against Gram-negative (Escherichia coli and Salmonella enterica subsp. enterica serovar Choleraesuis) and Gram-positive (Bacillus cereus) strains. In particular, the larger Ag@mSiO2 nanoparticles showed a minimum inhibitory concentration (MIC) and a minimum bactericidal concentration (MBC) of 18 µg/mL in the Salmonella strain. Furthermore, upon terminal amine functionalization, reversing the surface charge to positive values, there was a significant increase in the antibacterial activity of the NPs compared to their negative counterparts. Finally, the antimicrobial properties of the nanoparticle-doped polyurethane films revealed a substantial improvement in antibacterial efficacy. This study provides valuable information on the potential of mesoporous silica-coated silver nanoparticles and their applications in fighting multidrug-resistant bacteria, especially in the healthcare and food industries.
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Affiliation(s)
- Silvia Nuti
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Adrián Fernández-Lodeiro
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Joana Galhano
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Elisabete Oliveira
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Maria Paula Duarte
- MEtRICs, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - José Luis Capelo-Martínez
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Carlos Lodeiro
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
| | - Javier Fernández-Lodeiro
- BIOSCOPE Research Group, LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology (FCT NOVA), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- PROTEOMASS Scientific Society, Praceta Jeronimo Dias, Num. 12, 2A, Sto Antonio de Caparica, 2825-466 Costa de Caparica, Portugal
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Aftab R, Akbar F, Afroz A, Asif A, Khan MR, Rehman N, Zeeshan N. Mentha piperita silver nanoparticle-loaded hydrocolloid film for enhanced diabetic wound healing in rats. J Wound Care 2024; 33:xlviii-lx. [PMID: 38457268 DOI: 10.12968/jowc.2024.33.sup3a.xlviii] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
OBJECTIVE To investigate the role of Mentha piperita silver nanoparticle-loaded carbopol gel for enhanced wound healing in a diabetic rat model. This research further aims to explore bioactive compounds derived from Mentha piperita obtained from high altitude. METHOD Methanolic extracts of Mentha piperita (MP), Mentha spicata (MS) and Mentha longifolia (ML) were used to synthesise silver nanoparticles (AgNP). AgNP synthesis was confirmed by ultraviolet-visible (UV-Vis) spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The antioxidant activity was assessed by 2, 2-diphenyl-1-picrylhydrazyl (DDPH) assay. Antiglycation potential was determined by measuring the fluorescent advanced glycation end products. The bioactive compound identified in the Mentha piperita methanolic (MPM) fraction through electrospray ionisation tandem mass spectrometric analysis (ESI-MS) was responsible for the highest antiglycation. The effects of MPM and MPM.AgNP-loaded Carbopol (Sanare Lab, India) on wound healing were compared in male, alloxan-induced, diabetic albino rats (200-250g), divided into control and treated groups. Effects on wound healing were assessed via histopathology. RESULTS UV-Vis and FTIR confirmed NP synthesis with peaks for flavonoids and polyphenols. SEM and XRD explored the cubical, 30-63nm crystalline NP. The maximum antioxidant and antiglycation potential was observed in order of; MP.AgNP>MS.AgNP>ML.AgNP. The highest antioxidant activity was observed by methanolic and aqueous MP.AgNPs (88.55% and 83.63%, respectively) at 2mg.ml-1, and (75.16% and 69.73%, respectively) at 1mg.ml-1, compared to ascorbic acid (acting as a positive control, 90.01%). MPM.AgNPs demonstrated the best antiglycation potential of 75.2% and 83.3% at 1mg.ml-1 and 2mg.ml-1, respectively, comparable to positive control (rutin: 88.1%) at 14 days post-incubation. A similar trend was observed for antimicrobial activity against Bacillus subtilis, Micrococcus luteus and Escherichia coli with an inhibition zone of 21mm, 21.6mm and 24.6mm. Rosmarinic acid was the active compound present in Mentha piperita, as identified by ESI-MS. MPM.AgNP-loaded Carbopol resulted in 100% wound closure compared with control at 20 days post-wounding. In the treatment group, re-epithelialisation was achieved by day 18, compared with 25 days for the positive control group. CONCLUSION MPM.AgNP-loaded Carbopol demonstrated safer and more effective biological properties, hence accelerating the diabetic excision wound healing process in alloxan-induced diabetic rats.
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Affiliation(s)
- Reema Aftab
- Department of Biochemistry and Biotechnology, University of Gujrat, Hafiz Hayat Campus Gujrat, Punjab, Pakistan
| | - Fatima Akbar
- Department of Biochemistry and Biotechnology, University of Gujrat, Hafiz Hayat Campus Gujrat, Punjab, Pakistan
| | - Amber Afroz
- Department of Biochemistry and Biotechnology, University of Gujrat, Hafiz Hayat Campus Gujrat, Punjab, Pakistan
| | - Awais Asif
- Nawaz Sharif Medical College, University of Gujrat, Hafiz Hayat Campus Gujrat, Punjab, Pakistan
| | - Muhammad Ramzan Khan
- National Institute for Genomics and Advanced Biotechnology, National Agricultural Research Centre, Park Road, Islamabad 45500, Pakistan
| | - Nazia Rehman
- National Institute for Genomics and Advanced Biotechnology, National Agricultural Research Centre, Park Road, Islamabad 45500, Pakistan
| | - Nadia Zeeshan
- Department of Biochemistry and Biotechnology, University of Gujrat, Hafiz Hayat Campus Gujrat, Punjab, Pakistan
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Akter Y, Islam MM, Akter MS, Afrin K, Alam MS, Haque P, Bahadur NM. Silver nanoparticle reinforced polylactic acid and gelatin composite films for advanced wound dressing. J Biomater Appl 2024; 38:915-931. [PMID: 38346020 DOI: 10.1177/08853282241233720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Multifunctional and biodegradable dressings with high mechanical strength and good antibacterial activity are crucial in fundamental health services. This study was initiated to prepare a novel curative wound dressing film consisting of natural biodegradable gelatin (G) and polylactic acid (PLA) with silver nanoparticles (AgNPs) where glutaraldehyde (GA) was used as compatibilizer. The prepared composite films addressed the poor thermal and biological stability of G and the limited fluid retention capacity of PLA. Silver nanoparticles were prepared by basic chemical reduction and reinforced on polymer films using simple solvent casting, which obviated common clinical infections and accelerated wound closure rate (p < .05). Fourier transform infrared (FTIR) studies confirmed composite formation through H-bonding and X-ray diffraction (XRD) revealed increased crystallinity due to incorporating AgNPs. Films with G, PLA & GA (50:50:5 by volume) introduced the best elasticity & strength with excellent fluid retention properties (p < .05). Scanning electron microscopy (SEM) images unfolded surface morphology and presence of agglomerated AgNPs on film surfaces. Prepared films exhibited significant antimicrobial efficacy against Staphylococcus aureus and Pseudomonas sp. and showed excellent cell viability (>97 %) in Vero cell line. Finally, an in vivo mouse model study showed 99.7 % contraction (p < .05) within 12 days, which was most effectual and 12 % faster than conventional gauge bandages. These results demonstrated the promising and cost-effective potential of the prepared film for wound healing.
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Affiliation(s)
- Yeasmin Akter
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, USA
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Md Minhajul Islam
- Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka, Bangladesh
| | - Md Shamim Akter
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, USA
- Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka, Bangladesh
| | - Khodeja Afrin
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Md Saiful Alam
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Papia Haque
- Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka, Bangladesh
| | - Newaz Mohammed Bahadur
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
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Kongyodsueb P, Poolthong S, Chumprasert S, Sae-Ear P, Tantilertanant Y. The effect of silver nanoparticles in addition to sodium fluoride on remineralization of artificial root dentin caries. Aust Dent J 2024; 69:56-66. [PMID: 37813824 DOI: 10.1111/adj.12985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2023] [Indexed: 10/11/2023]
Abstract
BACKGROUND Silver nanoparticle was developed to overcome the drawback of silver diamine fluoride. However, evidence is limited, especially in root caries. The aim of this study was to evaluate the remineralization effect of silver nanoparticles on root caries. MATERIALS AND METHODS Fifty-five root human dentin slices size 5 × 5 mm2 from patients aged over 60 years old were immersed in demineralized solution to create artificial caries. Specimens were allocated into five groups according to the remineralizing agents: silver diamine fluoride (SDF), silver nanoparticles solution (AgNPs), silver nanoparticle solution followed by sodium fluoride varnish (AgNPs+NaF), sodium fluoride varnish (NaF), and tap water. After 8 days of pH-cycling challenge, the microhardness test, lesion depth evaluation, dentin surface morphology, and elemental analysis were performed. Data was analysed using F-test One-way ANOVA followed by Tukey's post hoc test and paired T-test. RESULTS All test groups demonstrated a significantly higher microhardness value and lower lesion depth compared with the control group. AgNPs+NaF and NaF-treated groups showed lower efficacy than SDF. Crystal precipitation was presented in all groups composed of silver. CONCLUSION Addition of fluoride varnish did not benefit for silver nanoparticles in preventing further demineralization. SDF provides the highest effectiveness in elderly root carious dentin.
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Affiliation(s)
- P Kongyodsueb
- Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - S Poolthong
- Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - S Chumprasert
- Oral Biology Research Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - P Sae-Ear
- Oral Biology Research Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Y Tantilertanant
- Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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Hosen ME, Rahman MA, Rahman MS, Akash S, Khalekuzzaman M, Alsahli AA, Bourhia M, Nafidi HA, Islam MA, Zaman R. Synthesis of Silver Nanoparticles Using Camellia sinensis Leaf Extract: Promising Particles for the Treatment of Cancer and Diabetes. Chem Biodivers 2024; 21:e202301661. [PMID: 38359057 DOI: 10.1002/cbdv.202301661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/17/2024] [Indexed: 02/17/2024]
Abstract
Both diabetes and cancer pose significant threats to public health. To overcome these challenges, nanobiotechnology offers innovative solutions for the treatment of these diseases. However, the synthesis of nanoparticles can be complex, costly and environmentally toxic. Therefore, in this study, we successfully synthesized Camellia sinensis silver nanoparticles (CS-AgNPs) biologically from methanolic leaf extract of C. sinensis and as confirmed by the visual appearance which exhibited strong absorption at 456 nm in UV-visible spectroscopy. The fourier transform infrared spectroscopy (FTIR) analysis revealed that phytochemicals of C. sinensis were coated with AgNPs. Scanning electron microscopy (SEM) analysis showed the spherical shape of CS-AgNPs, with a size of 15.954 nm, while X-ray diffraction spectrometry (XRD) analysis detected a size of 20.32 nm. Thermogravimetric analysis (TGA) indicated the thermal stability of CS-AgNPs. The synthesized CS-AgNPs significantly inhibited the ehrlich ascites carcinoma (EAC) cell growth with 53.42±1.101 %. The EAC cell line induced mice exhibited increased level of the serum aspartate aminotransferase (AST), alanine transaminase (ALT), and alkaline phosphatase (ALP), however this elevated serum parameter significantly reduced and controlled by the treatment with CS-AgNPs. Moreover, in a streptozotocin-induced diabetic mice model, CS-AgNPs greatly reduced blood glucose, total cholesterol, triglyceride, low-density lipoprotein (LDL) and creatinine levels. These findings highlight that the synthesized CS-AgNPs have significant anticancer and antidiabetic activities that could be used as promising particles for the treatment of these major diseases. However, pre-clinical and clinical trial should be addressed before use this particles as therapeutics agents.
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Affiliation(s)
- Md Eram Hosen
- Professor Joarder DNA and Chromosome Research Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md Ataur Rahman
- Department of Chemistry, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md Sojiur Rahman
- Professor Joarder DNA and Chromosome Research Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Shopnil Akash
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, 1216, Dhaka, Bangladesh
| | - Md Khalekuzzaman
- Professor Joarder DNA and Chromosome Research Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Abdulaziz Abdullah Alsahli
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohammed Bourhia
- Laboratory of Biotechnology and Natural Resources Valorization, Faculty of Sciences, Ibn Zohr University, Agadir, 80060, Morocco
| | - Hiba-Allah Nafidi
- Department of Food Science, Faculty of Agricultural and Food Sciences, Laval University, 2325, Quebec City, QC G1V 0A6, Canada
| | - Md Asadul Islam
- Professor Joarder DNA and Chromosome Research Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Rashed Zaman
- Professor Joarder DNA and Chromosome Research Laboratory, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
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Akhtar MF, Irshad M, Ali S, Summer M, Gulrukh S, Irfan M. Evaluation of biological potential of UV-spectrophotometric, SEM, FTIR, and EDS observed Punica granatum and Plectranthus rugosus extract-coated silver nanoparticles: A comparative study. Microsc Res Tech 2024; 87:616-627. [PMID: 38031715 DOI: 10.1002/jemt.24454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/09/2023] [Accepted: 10/31/2023] [Indexed: 12/01/2023]
Abstract
Recent developments in the green synthesis of metallic nanoparticles (NPs) using phytoconstituents have attracted the attention of the global scientific community. The present study was designed to synthesize silver NPs (AgNPs) using Punica granatum and Plectranthus rugosus plant extracts. The fabricated AgNPs were characterized using UV-visible spectrophotometry (UV-Vis), Fourier-transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and energy-dispersive x-ray spectroscopy (EDS). The shift in the color of the silver nitrate (AgNO3 ) solution after the addition of P. granatum and P. rugosus extracts indicated the synthesis of AgNPs. The effect of AgNO3 concentrations and pH on the synthesis of AgNPs was also evaluated. The findings of this study suggest that AgNO3 concentration of 1 mM, reaction time of 1 h, and pH of 7 at room temperature were the best suited conditions for the synthesis of AgNPs. According to the FTIR analysis, amidic and carbonyl compounds were primarily responsible for the encapsulation of AgNPs. SEM investigations have shown irregularly shaped geometry with sizes of 35 nm (P. granatum) and 33 nm (P. rugosus) with low agglomeration. The prepared AgNPs exhibited good potential for 2,2-diphenyl-1-picrylhydrazyl radical scavenging, with values of 70% (P. granatum) and 68% (P. rugosus). Hence, we conclude that the leaves of P. granatum and P. rugosus are excellent material for designing of different plant-extracted-conjugated AgNPs for biomedical applications. RESEARCH HIGHLIGHTS: Preparation of the AgNPs using novel plants extracts. P. granatum and P. rugosus extract as reducing, capping, stabilizing, and optimizing agents. Thorough comparative characterization using UV-Vis spectrophotometer, FTIR, SEM, and EDS which is a first of its kind. Comparative antioxidant activity.
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Affiliation(s)
- Muhammad Faran Akhtar
- Department of Chemistry, University of Kotli, Kotli, Azad Jammu and Kashmir, Pakistan
| | - Muhammad Irshad
- Department of Chemistry, University of Kotli, Kotli, Azad Jammu and Kashmir, Pakistan
| | - Shaukat Ali
- Laboratory of Applied Entomology and Medical Toxicology, Department of Zoology, Government College University Lahore, Lahore, Pakistan
| | - Muhammad Summer
- Laboratory of Applied Entomology and Medical Toxicology, Department of Zoology, Government College University Lahore, Lahore, Pakistan
| | - Saima Gulrukh
- Department of Chemistry, University of Kotli, Kotli, Azad Jammu and Kashmir, Pakistan
| | - Muhammad Irfan
- Department of Chemistry, University of Kotli, Kotli, Azad Jammu and Kashmir, Pakistan
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Oliveira LVF, Camilo FF, Soares MG, Cajas RA, Cirino ME, de Moraes J, Lago JHG. In Situ Preparation of Dehydrodieugenol-Loaded Silver Nanoparticles and their Antischistosomal Activity. Chem Biodivers 2024; 21:e202301929. [PMID: 38278761 DOI: 10.1002/cbdv.202301929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/19/2024] [Accepted: 01/19/2024] [Indexed: 01/28/2024]
Abstract
Schistosomiasis is a major neglected disease that imposes a substantial worldwide health burden, affecting approximately 250 million people globally. As praziquantel is the only available drug to treat schistosomiasis, there is a critical need to identify new anthelmintic compounds, particularly from natural sources. To enhance the activity of different natural products, one potential avenue involves its combination with silver nanoparticles (AgNP). Based on this approach, a one-step green method for the in situ preparation of dehydrodieugenol (DHDG) by oxidation coupling reaction using silver and natural eugenol is presented. AgNP formation was confirmed by UV-Vis spectroscopy due to the appearance of the surface plasmon resonance (SPR) band at 430 nm which is characteristic of silver nanoparticles. The nanoparticles were spherical with sizes in the range of 40 to 50 nm. Bioassays demonstrated that the silver nanoparticles loaded with DHDG exhibited significant anthelmintic activity against Schistosoma mansoni adult worms without toxicity to mammalian cells and an in vivo animal model (Caenorhabditis elegans), contributing to the development of new prototypes based on natural products for the treatment of schistosomiasis.
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Affiliation(s)
- Larissa V F Oliveira
- Center for Natural and Human Sciences, Federal University of ABC, SP-09210-580, Santo Andre, Brazil
| | - Fernanda F Camilo
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, SP-09913-030, Diadema, Brazil
| | - Marisi G Soares
- Institute of Chemistry, Federal University of Alfenas, MG-37130-001, Alfenas, Brazil
| | - Rayssa A Cajas
- Research Center for Neglected Diseases, Guarulhos University, SP-07030-010, Guarulhos, Brazil
| | - Maria E Cirino
- Research Center for Neglected Diseases, Guarulhos University, SP-07030-010, Guarulhos, Brazil
| | - Josué de Moraes
- Research Center for Neglected Diseases, Guarulhos University, SP-07030-010, Guarulhos, Brazil
| | - João Henrique G Lago
- Center for Natural and Human Sciences, Federal University of ABC, SP-09210-580, Santo Andre, Brazil
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Soni D, Gandhi D. Toxicity evaluation of silver nanoparticles synthesized from naringin flavonoid on human promyelocytic leukemic cells and human blood cells. Toxicol Ind Health 2024; 40:125-133. [PMID: 38243157 DOI: 10.1177/07482337241227244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2024]
Abstract
Increasing applications of silver nanoparticles (AgNPs) in multiple products like cosmetics, medicines, drugs, paints, and other new materials have raised concern for their toxic effects on living beings and the surrounding environment. In the present study, cytotoxicity and genotoxicity of AgNPs synthesized using plant flavonoid (Naringin) as a reducing agent were investigated on human promyelocytic leukemic (HL-60) cells and human blood as an in vitro model. The LC50 of AgNPs was found to be 4.85 µM. Dose-dependent increase in cell death and caspase activity was observed in the presence of AgNPs. The comet assay showed a 60%-70% (p < .05) increase in tail DNA at 0.48 and 0.96 µM AgNPs. CBMN in PBMCs also confirmed the genotoxic potential of AgNPs-induced DNA damage. AgNPs resulted in 1.5-1.54 fold (p < .05) increase in the level of ROS in HL-60 cells after 12 h of exposure. AgNP showed toxicity in human cells through ROS generation and cellular damage through membrane dysfunction, caspase activation, apoptosis, and DNA damage.
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Affiliation(s)
- Deepika Soni
- National Institute of Pathology, New Delhi, India
- CSIR-National Environmental Engineering Research Institute, Nehru Marg, India
| | - Deepa Gandhi
- CSIR-National Environmental Engineering Research Institute, Nehru Marg, India
- All India Institute of Medical Sciences, Bhopal, India
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Bawazeer S. Green synthesis of silver nanoparticles from Euphorbia milii plant extract for enhanced antibacterial and enzyme inhibition effects. Int J Health Sci (Qassim) 2024; 18:25-32. [PMID: 38455597 PMCID: PMC10915915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024] Open
Abstract
Objectives Silver nanoparticles (AgNPs) are gaining increasing attention in biomedical applications due to their unique properties. Green synthesis methods are environmentally friendly and have demonstrated potential for AgNP production. This study explores the green synthesis of AgNPs using the methanolic extract of Euphorbia milii, a plant known for its medicinal properties. The primary objectives of this research were to synthesize AgNPs using E. milii extract, characterize the nanoparticles (NPs) using various techniques, and evaluate their antibacterial and enzyme inhibitory activities. Methods E. milii plant extract was utilized for the green synthesis of AgNPs. The characterization of the NPs was performed through ultraviolet-visible spectroscopy (UV-Vis), Fourier-transform infrared spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy (EDX). Antibacterial activity was assessed against Staphylococcus aureus, while enzyme inhibitory assays were conducted against urease, α-glucosidase, carbonic anhydrase II, and xanthine oxidase. Results The synthesized AgNPs exhibited significant antibacterial effects, with a remarkable 20-mm zone of inhibition against S. aureus, surpassing the efficacy of the plant extract alone. Furthermore, the AgNPs demonstrated remarkable enzyme inhibition, achieving impressive percentages of 77.98% against α-glucosidase and 88.54% against carbonic anhydrase II. Half-maximal inhibitory concentration values for enzyme inhibition were highly promising, including 78.09 ± 1.98 μM for α-glucosidase, 0.22 ± 0.10 μM for carbonic anhydrase II, and 7.11 ± 0.55 μM for xanthine oxidase. Conclusion In this study, AgNPs were successfully synthesized using E. milii extract and characterized using various techniques. The AgNPs exhibited significant antibacterial and enzyme-inhibitory activities, showcasing their potential for biomedical applications.
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Affiliation(s)
- Saud Bawazeer
- Department of Pharmaceutical Science, Faculty of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
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Oezau Gomes N, de Campos AM, Calegaro ML, Machado SAS, Oliveira ON, Raymundo-Pereira PA. Core-Shell Nanocables Decorated with Carbon Spherical Shells and Silver Nanoparticles for Sensing Ethinylestradiol Hormone in Water Sources and Pills. ACS Appl Mater Interfaces 2024; 16:10897-10907. [PMID: 38364212 DOI: 10.1021/acsami.3c16249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
The selective, rapid detection of low levels of hormones in drinking water and foodstuffs requires materials suitable for inexpensive sensing platforms. We report on core-shell Ag@C nanocables (NCs) decorated with carbon spherical shells (CSSs) and silver nanoparticles (AgNPs) by using a hydrothermal green approach. Sensors were fabricated with homogeneous, porous films on screen-printed electrodes, which comprised a 115 nm silver core covered by a 122 nm thick carbon layer and CSSs with 168 nm in diameter. NCs and CSSs were also decorated with 10-25 nm AgNPs. The NC/CSS/AgNP sensor was used to detect ethinylestradiol using square wave voltammetry in 0.1 M phosphate buffer (pH 7.0) over the 1.0-10.0 μM linear range with a detection limit of 0.76 μM. The sensor was then applied to detect ethinylestradiol in tap water samples and a contraceptive pill with recovery percentages between 93 and 101%. The high performance in terms of sensitivity and selectivity for hormones is attributed to the synergy between the carbon nanomaterials and AgNPs, which not only increased the sensor surface area and provided sites for electron exchange but also imparted an increased surface area.
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Affiliation(s)
- Nathalia Oezau Gomes
- São Carlos Institute of Chemistry, University of São Paulo, CEP 13566-590 São Carlos, SP, Brazil
| | - Anderson M de Campos
- Chair of Physical Chemistry, Department of Chemistry, University of Munich (LMU), Butenandstr. 5-13, 81377 Munich, Germany
| | - Marcelo L Calegaro
- São Carlos Institute of Chemistry, University of São Paulo, CEP 13566-590 São Carlos, SP, Brazil
| | - Sergio A S Machado
- São Carlos Institute of Chemistry, University of São Paulo, CEP 13566-590 São Carlos, SP, Brazil
| | - Osvaldo N Oliveira
- São Carlos Institute of Physics, University of São Paulo, CEP 13560-970 São Carlos, SP, Brazil
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Pandey P, Pradhan S, Meher K, Lopus M, Vavilala SL. Exploring the efficacy of tryptone-stabilized silver nanoparticles against respiratory tract infection-causing bacteria: a study on planktonic and biofilm forms. Biomed Mater 2024; 19:025047. [PMID: 38364289 DOI: 10.1088/1748-605x/ad2a40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/16/2024] [Indexed: 02/18/2024]
Abstract
Respiratory tract infections (RTIs) are a common cause of mortality and morbidity in the human population. The overuse of antibiotics to overcome such infections has led to antibiotic resistance. The emergence of multidrug resistant bacteria is necessitating the development of novel therapeutic techniques in order to avoid a major global clinical threat. Our study aims to investigate the potential of tryptone stabilised silver nanoparticles (Ts-AgNPs) on planktonic and biofilms produced byKlebsiella pneumoniae(K. pneumoniae)and Pseudomonas aeruginosa(P. aeruginosa). The MIC50of Ts-AgNPs was found to be as low as 1.7 μg ml-1and 2.7 μg ml-1forK. pneumoniae and P.aeruginosarespectively. Ts-AgNPs ability to alter redox environment by producing intracellular ROS, time-kill curves showing substantial decrease in the bacterial growth and significantly reduced colony forming units further validate its antimicrobial effect. The biofilm inhibition and eradication ability of Ts-AgNPs was found to be as high as 93% and 97% in both the tested organisms. A significant decrease in the eDNA and EPS quantity in Ts-AgNPs treated cells proved its ability to successfully distort the matrix and matured biofilms. Interestingly Ts-AgNPs also attenuated QS-induced virulence factors production. This study paves way to develop Ts-AgNPs as novel antibiotics against RTIs causing bacterial biofilms.
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Affiliation(s)
- Pooja Pandey
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari, Kalina Campus, Mumbai 400098, India
| | - Sristi Pradhan
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari, Kalina Campus, Mumbai 400098, India
| | - Kimaya Meher
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari, Kalina Campus, Mumbai 400098, India
| | - Manu Lopus
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari, Kalina Campus, Mumbai 400098, India
| | - Sirisha L Vavilala
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari, Kalina Campus, Mumbai 400098, India
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22
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Chicea D, Nicolae-Maranciuc A, Chicea LM. Silver Nanoparticles-Chitosan Nanocomposites: A Comparative Study Regarding Different Chemical Syntheses Procedures and Their Antibacterial Effect. Materials (Basel) 2024; 17:1113. [PMID: 38473584 DOI: 10.3390/ma17051113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/15/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024]
Abstract
Nanocomposites based on silver nanoparticles and chitosan present important advantages for medical applications, showing over time their role in antibacterial evaluation. This work presents the comparative study of two chemical synthesis procedures of nanocomposites, based on trisodium citrate dihydrate and sodium hydroxide, using various chitosan concentrations for a complex investigation. The nanocomposites were characterized by AFM and DLS regarding their dimensions, while FT-IR and UV-VIS spectrometry were used for the optical properties and to reveal the binding of silver nanoparticles with chitosan. Their antibacterial effect was determined using a disk diffusion method on two bacteria strains, E. coli and S. aureus. The results indicate that, when using both methods, the nanocomposites obtained were below 100 nm, yet the antibacterial effect proved to be stronger for the nanocomposites obtained using sodium hydroxide. Furthermore, the antibacterial effect can be related to the nanocomposites' sizes, since the smallest dimension nanocomposites exhibited the best bacterial growth inhibition on both bacteria strains we tested and for both types of silver nanocomposites.
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Affiliation(s)
- Dan Chicea
- Research Center for Complex Physical Systems, Faculty of Sciences, Lucian Blaga University of Sibiu, 550012 Sibiu, Romania
| | - Alexandra Nicolae-Maranciuc
- Research Center for Complex Physical Systems, Faculty of Sciences, Lucian Blaga University of Sibiu, 550012 Sibiu, Romania
- Institute for Interdisciplinary Studies and Research (ISCI), Lucian Blaga University of Sibiu, 550024 Sibiu, Romania
| | - Liana-Maria Chicea
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania
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23
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Shukla G, Singh A, Chaudhary N, Singh S, Basnal N, Gaurav SS. Metal nanoparticles to improve the heat resilience in wheat ( Triticum aestivumL.). Nanotechnology 2024; 35:205101. [PMID: 38330456 DOI: 10.1088/1361-6528/ad27af] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 02/08/2024] [Indexed: 02/10/2024]
Abstract
This study evaluated the efficacy of phytogenic silver and zinc nanoparticles in improving heat resilience in various wheat varieties. The silver and zinc nanoparticles were synthesized using plant leaf extract and characterized using various techniques. Four wheat varieties (DBW187, Black Wheat, DBW 50, and PBW 621) were subjected to field trials. The random block design was used, and nanoparticles in different concentrations were applied at various growth stages and morphologically, and yield parameters were recorded. UV-vis spectroscopy spectral analysis showed peaks for Ag nanoparticles at 420 nm wavelength and Zn nanoparticles at 240 and 350 nm wavelength, depicting the preliminary confirmation of nanoparticle synthesis. Electron microscopic analysis (TEM and SEM) provided morphological insights and confirmed synthesis of fine-sized particle mostly in a range between 10 and 60 nm. Energy dispersive x-ray analysis confirmed the elemental composition of the synthesized nanoparticles, with Ag and Zn elements detected in their respective samples. It also confirmed the oxide nature of synthesized ZnNPs. Dynamic light scattering analysis provided size distribution profiles, indicating average sizes of approximately 61.8 nm for Ag nanoparticles and 46.5 nm for Zn nanoparticles. The concentrations of Ag and Zn nanoparticles in the samples were found to be 196.3 ppm and 115.14 ppm, respectively, through atomic absorption spectroscopic analysis. Fourier transform infrared spectroscopy analysis revealed characteristic functional groups present in the nanoparticles. The results of field experiments established that Ag nanoparticles at 75 ppm concentration exhibited the most significant enhancements in plant growth. Conversely, Zn nanoparticles at a 100 ppm concentration demonstrated the most substantial improvements in the growth and yield of heat-stressed wheat varieties. The study concludes that optimized concentrations of silver and zinc nanoparticles can effectively improve heat stress resilience in wheat. These findings are promising to enhance abiotic stress resilience in crops.
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Affiliation(s)
- Gyanika Shukla
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, UP. Pin code: 250004, India
| | - Amardeep Singh
- Department of Biotechnology, Chaudhary Charan Singh University, Meerut, UP. Pin code: 250004, India
| | - Neha Chaudhary
- Department of Biotechnology, Chaudhary Charan Singh University, Meerut, UP. Pin code: 250004, India
| | - Swati Singh
- Department of Biotechnology, Chaudhary Charan Singh University, Meerut, UP. Pin code: 250004, India
| | - Namita Basnal
- Department of Biotechnology, Chaudhary Charan Singh University, Meerut, UP. Pin code: 250004, India
| | - Shailendra Singh Gaurav
- Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, UP. Pin code: 250004, India
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Kashif H, Ahmed MN, Altaf M, Haq IU, Iqbal A, Haq S. Rocephin-graphene oxide-silver nanocomposites: A versatile platform for biomedical applications. Microsc Res Tech 2024. [PMID: 38407375 DOI: 10.1002/jemt.24536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 01/21/2024] [Accepted: 02/16/2024] [Indexed: 02/27/2024]
Abstract
For many years, the synthesis of graphene oxide (GO) had involved exfoliating graphite flakes, and the methods applied were expensive and time-consuming. Thus, an attempt had been made to create an inventive, less expensive method for the synthesis of GO using unrefined, raw carbon-containing material. Modified Hummer's method was used to prepare GO from banana peel. In addition, the metallic silver nanocomposite was also synthesized along with laoding of drug Rocephin where they interact with each other through electrostatic hydrogen bond interaction. The degree of crystallinity and the crystallite size were through x-ray diffraction (XRD) analysis and the crystallite size of AgNPs was found to be 40.40 nm. The scanning electron microscopy (SEM) analysis shows that the morphology of the GO gradually changes with the addition of AgNPs and Rocephin. A blue shift was seen in the absorbance maxima of the raw carbon upon the conjugation of Rocephin in UV analysis. The Fourier-transform infrared spectroscopy, and energy dispersive X-ray (EDX) spectroscopy were used to determine the chemical composition of the samples. Furthermore, a broad biological screening of the synthesized samples had been carried out following the total reducing power (TRP), total antioxidant capacity (TAC), antibacterial, antifungal, MTT (Cytotoxicity of biologically synthesized silver nanoparticles in MDA-MB-231 human breast cancer cells) cell viability, brine shrimp lethality, and hemolytic protocols. Significant results were obtained, and the Rocephin-GO-AgNPs had depicted promising activity as compared with their counterparts. RESEARCH HIGHLIGHTS: The GO was prepared from the raw carbon extracted from banana peels and was used as a substrate for the synthesis Graphene oxide silver nanoparticles (GO-AgNPs) and Rocephin-loaded graphene oxide silver nanoparticles (Rocephin-GO-AgNPs) The structural and compositional analysis of the nanomaterial was carried out, and they were screened for several biomedical applications. The Rocephin-GO-AgNPs exhibit the highest activity as compared with their counterparts.
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Affiliation(s)
- Humaira Kashif
- Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Muhammad Naeem Ahmed
- Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Muhammad Altaf
- Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Ihsan Ul Haq
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Anila Iqbal
- Nanoscience and Technology Department, National Center for Physics, Islamabad, Pakistan
| | - Sirajul Haq
- Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
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25
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Chen H, Han C, Zhang L, Wu Y. Porous rod-shaped Fe 2O 3/Ag/BP: a novel substrate for highly sensitive SERS detection of persistent organic pollutants. Nanotechnology 2024; 35:195710. [PMID: 38330462 DOI: 10.1088/1361-6528/ad27ab] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 02/08/2024] [Indexed: 02/10/2024]
Abstract
A surface enhanced Raman scattering (SERS) substrate of porous rod-shaped ferric oxide (Fe2O3) combined with silver nanoparticles (Ag NPs) and black phosphorus (Fe2O3/Ag/BP) was fabricated to detect the persistent organic pollutants (POPs) at low concentration. The organic pollutant Rhodamine 6G (R6G) was used as the probe molecule to study the performances of Fe2O3/Ag/BP, and 4-chlorobiphenyl (PCB-3) was the target of detection. The limit of detection (LOD) of R6G based on this novel SERS substrate Fe2O3/Ag/BP was as low as 1.0 × 10-15M, which was five orders of magnitude lower than that of Fe2O3/Ag (10-10M). The enhancement factor (EF) of Fe2O3/Ag/BP was 6.44 × 108, which was 3.1 times higher than that of porous rod-shaped Fe2O3/Ag (2.08 × 108). The Raman signal of R6G based on Fe2O3/Ag/BP had a good homogeneity, and the relative standard deviation (RSD) of Raman signal intensities of R6G at 1643 cm-1was only 5.97%. Furthermore, the Fe2O3/Ag/BP substrate exhibited a recyclability through the photocatalytic degradation of R6G. The LOD of PCB-3 based on Fe2O3/Ag/BP was 10-9M. Besides, Fe2O3/Ag/BP had a high SERS activity even it was kept in a centrifuge tube without requiring complicated treatment. These results highlight the potential application of Fe2O3/Ag/BP for ultra-trace detection of POPs in the environment.
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Affiliation(s)
- Hang Chen
- School of Physics and Electronic Engineering, Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
- Jiangsu Xiyi Advanced Materials Research Institute of Industrial Technology, Xuzhou 221400, People's Republic of China
| | - Caiqin Han
- School of Physics and Electronic Engineering, Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Le Zhang
- School of Physics and Electronic Engineering, Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
- Jiangsu Xiyi Advanced Materials Research Institute of Industrial Technology, Xuzhou 221400, People's Republic of China
| | - Ying Wu
- School of Physics and Electronic Engineering, Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
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Siddiqa A, Qureshi R, Raja NI, Khan IA, Ahmad MZ, Rafique S, Ali A, Ahmad A, Kaushik P. Liver-boosting potential: chicory compound-mediated silver nanoparticles for hepatoprotection-biochemical and histopathological insights. Front Pharmacol 2024; 15:1325359. [PMID: 38449804 PMCID: PMC10914973 DOI: 10.3389/fphar.2024.1325359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/23/2024] [Indexed: 03/08/2024] Open
Abstract
Background: Liver disease is a serious health concern in today's world, posing a challenge to both healthcare providers and pharmaceutical companies. Most synthetic drugs and chemicals cause liver damage accounting for approximately 10% of acute hepatitis and 50% of acute liver failure. Purpose: The present study aimed to evaluate the hepato-protective activity of an extract of chicory formulation assisted by silver nanoparticles against carbon tetra chloride (CCl4)-induced hepatic damage in rat's liver. Methods: Rats of the Wistar strain (Rattus norvegicus) were used to test the in vivo hepato-protective efficacy at various doses. Rats were randomly divided into nine groups, each containing six rats. The groups were as follows: first group (control), second group (CCl4), third group, silymarin (20 mg/kg of body weight), fourth group (CCl4+chicory) (1.75 mg/kg of b. wt), fifth group (CCl4 + chicory at the dose of 2.35 mg/kg), sixth group (CCl4 + chicory of 3.25 mg/kg), seventh group (CCl4 +AgNPs 1.75 mg/kg of b. wt.), eighth group (CCl4 + AgNPs 2.35 mg/kg of body weight), and ninth group (CCl4 + AgNPs 3.25 mg/kg of b. wt.). Blood samples were taken 24 h after the last administration (i.e., 30th day). The blood samples were analyzed for different serum enzymes such as ALP (alkaline phosphatase), ALT (alanine transaminase), bilirubin (Blr), triglyceride, and cholesterol. Histology liver sections were performed. Results: Treatment with AgNPs and chicory extract showed significant hepato-protective activity in a dose-dependent manner. In three doses, the chicory extract at a rate of 3.25 mg/kg of body weight significantly reduced elevated levels of biochemical markers in comparison to CCl4-intoxicated rats. Histology of the liver sections from CCl4-treated rats revealed inflammation of hepatocytes, necrosis, cytoplasmic degeneration, vacuolization, and a deformed central vein. The chicory formulation extract exhibited a remarkable recovery percentage in the liver architecture that was higher than the drug (i.e., silymarin). While treatment with AgNPs also repaired the degenerative changes and restored the normal form of the liver, chicory formulation extract possessed more hepato-protective potential as compared to AgNPs by regulating biochemical and histo-pathological parameters. Conclusion: This study can be used as confirmation of the hepato-protective potential of chicory compounds for possible use in the development programs of drugs to treat liver diseases.
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Affiliation(s)
- Ayesha Siddiqa
- Department of Botany, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Rahmatullah Qureshi
- Department of Botany, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Naveed Iqbal Raja
- Department of Botany, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Imtiaz Ahmed Khan
- Department of Veterinary Pathology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Muhammad Zishan Ahmad
- Department of Veterinary Pathology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Shaista Rafique
- Department of Botany, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Amir Ali
- Department of Botany, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Ajaz Ahmad
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Prashant Kaushik
- Department of Vegetable Science, Chaudhary Charan Singh Haryana Agricultural University, Hisar, India
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Zhang Y, Larionov KS, Zhang S, Sobolev NA, Konstantinov AI, Volkov DS, Suslova EV, Chernov VE, Poloskov AI, Glushakov RI, Perminova IV. Humic Polyelectrolytes Facilitate Rapid Microwave Synthesis of Silver Nanoparticles Suitable for Wound-Healing Applications. Polymers (Basel) 2024; 16:587. [PMID: 38475271 DOI: 10.3390/polym16050587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/14/2024] [Accepted: 02/18/2024] [Indexed: 03/14/2024] Open
Abstract
This article describes the one-pot microwave synthesis of silver nanoparticles (AgNPs) assisted with natural polyelectrolytes-humic substances (HS). The humic polyelectrolytes served both as chemical reductants for silver ions and as end-capping agents for AgNPs. Three commercially available sodium humates extracted from lignites and leonardite and one sodium fulvate isolated from natural brown water seeped through peat deposits were used in this study. The dynamics of the growth rate of AgNPs was characterised by UV-VIS spectroscopy by measuring the intensity of surface plasmon resonance at 420 nm. Transmission electron microscopy was used to characterise the size and morphology of AgNPs. Dynamic light scattering was used to determine size distributions of the synthesised AgNPs in the solutions. It was established that both conventional and microwave syntheses assisted with the coal humates produced small-size AgNPs in the range from 4 to 14 nm, with the maximum share of particles with sizes of (6 ± 2) nm by TEM estimates. The peat fulvate yielded much larger NPs with sizes from 10 to 50 nm by TEM estimates. DLS measurements revealed multimodal distributions of AgNPs stabilised with HS, which included both single NPs with the sizes from 5 to 15 nm, as well as their dominating aggregates with sizes from 20 to 200 nm and a smaller portion of extra-large aggregates up to 1000 nm. The given aggregates were loosely bound by humic polyelectrolyte, which prevented the coalescence of AgNPs into larger particles, as can be seen in the TEM images. The significant acceleration in the reaction time-a factor of 60 to 70-was achieved with the use of MW irradiation: from 240 min down to 210-240 s. The coal humate stabilised AgNPs showed antimicrobial properties in relation to S. aureus. A conclusion was made regarding the substantial advantages of microwave synthesis in the context of time and scaling up for the large-scale production of AgNP-HS preparations with antimicrobial properties suitable for external wound-healing applications.
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Affiliation(s)
- Yu Zhang
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Konstantin S Larionov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Simeng Zhang
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Nikita A Sobolev
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Andrey I Konstantinov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Dmitry S Volkov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Evgeniya V Suslova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Vladimir E Chernov
- Kirov Military Medical Academy, Academician Lebedev Street 6, 194044 Saint Petersburg, Russia
| | - Anton I Poloskov
- Kirov Military Medical Academy, Academician Lebedev Street 6, 194044 Saint Petersburg, Russia
| | - Ruslan I Glushakov
- Kirov Military Medical Academy, Academician Lebedev Street 6, 194044 Saint Petersburg, Russia
| | - Irina V Perminova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
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Jahan I, Matpan Bekler F, Tunç A, Güven K. The Effects of Silver Nanoparticles (AgNPs) on Thermophilic Bacteria: Antibacterial, Morphological, Physiological and Biochemical Investigations. Microorganisms 2024; 12:402. [PMID: 38399806 PMCID: PMC10892981 DOI: 10.3390/microorganisms12020402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 06/19/2023] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
Since thermophilic microorganisms are valuable sources of thermostable enzymes, it is essential to recognize the potential toxicity of silver nanoparticles used in diverse industrial sectors. Thermophilic bacteria Geobacillus vulcani 2Cx, Bacillus licheniformis 3CA, Paenibacillus macerans 3CA1, Anoxybacillus ayderensis FMB1, and Bacillus paralicheniformis FMB2-1 were selected, and their MIC and MBC values were assessed by treatment with AgNPs in a range of 62.5-1500 μg mL-1. The growth inhibition curves showed that the G. vulcani 2Cx, and B. paralicheniformis FMB2-1 strains were more sensitive to AgNPs, demonstrating a reduction in population by 71.1% and 31.7% at 62.5 μg mL-1 and by 82.9% and 72.8% at 250 μg mL-1, respectively. TEM and FT-IR analysis revealed that AgNPs caused structural damage, cytoplasmic leakage, and disruption of cellular integrity. Furthermore, cell viability showed a significant decrease alongside an increase in superoxide radical (SOR; O2-) production. β-galactosidase biosynthesis decreased to 28.8% level at 500 μg mL-1 AgNPs for G. vulcani 2Cx, 32.2% at 250 μg mL-1 for A. ayderensis FMB1, and 38.8% only at 62.5 μg mL-1, but it was completely inhibited at 500 μg mL-1 for B. licheniformis 3CA. Moreover, B. paralicheniformis FMB2-1 showed a significant decrease to 11.2% at 125 μg mL-1. This study is the first to reveal the toxic effects of AgNPs on thermophilic bacteria.
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Affiliation(s)
- Israt Jahan
- Department of Health Care Services, Vocational School of Health Services, Mardin Artuklu University, 47100 Mardin, Türkiye;
| | - Fatma Matpan Bekler
- Department of Molecular Biology and Genetics, Faculty of Science, Dicle University, 21280 Diyarbakir, Türkiye;
| | - Ahmed Tunç
- Department of Interdisciplinary Nanotechnology, Graduate School of Natural and Applied Sciences, Dicle University, 21280 Diyarbakir, Türkiye;
| | - Kemal Güven
- Department of Molecular Biology and Genetics, Faculty of Science, Dicle University, 21280 Diyarbakir, Türkiye;
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Gondal AJ, Choudhry N, Niaz A, Yasmin N. Molecular Analysis of Carbapenem and Aminoglycoside Resistance Genes in Carbapenem-Resistant Pseudomonas aeruginosa Clinical Strains: A Challenge for Tertiary Care Hospitals. Antibiotics (Basel) 2024; 13:191. [PMID: 38391577 PMCID: PMC10886086 DOI: 10.3390/antibiotics13020191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 01/09/2024] [Accepted: 01/23/2024] [Indexed: 02/24/2024] Open
Abstract
Carbapenem-resistant Pseudomonas aeruginosa (P. aeruginosa) strains have become a global threat due to their remarkable capability to survive and disseminate successfully by the acquisition of resistance genes. As a result, the treatment strategies have been severely compromised. Due to the insufficient available data regarding P. aeruginosa resistance from Pakistan, we aimed to investigate the resistance mechanisms of 249 P. aeruginosa strains by antimicrobial susceptibility testing, polymerase chain reaction for the detection of carbapenemases, aminoglycoside resistance genes, extended-spectrum beta-lactamases (ESBLs), sequence typing and plasmid typing. Furthermore, we tested silver nanoparticles (AgNPs) to evaluate their in vitro sensitivity against antimicrobial-resistant P. aeruginosa strains. We observed higher resistance against antimicrobials in the general surgery ward, general medicine ward and wound samples. Phenotypic carbapenemase-producer strains comprised 80.7% (201/249) with 89.0% (179/201) demonstrating genes encoding carbapenemases: blaNDM-1 (32.96%), blaOXA48 (37.43%), blaIMP (7.26%), blaVIM (5.03%), blaKPC-2 (1.12%), blaNDM-1/blaOXA48 (13.97%), blaOXA-48/blaVIM (1.68%) and blaVIM/blaIMP (0.56%). Aminoglycoside-modifying enzyme genes and 16S rRNA methylase variants were detected in 43.8% (109/249) strains: aac(6')-lb (12.8%), aac(3)-lla (12.0%), rmtB (21.1%), rmtC (11.0%), armA (12.8%), rmtD (4.6%), rmtF (6.4%), rmtB/aac(3)-lla (8.2%), rmtB/aac(6')-lla (7.3%) and rmtB/armA (3.6%). In total, 43.0% (77/179) of the strains coharbored carbapenemases and aminoglycoside resistance genes with 83.1% resistant to at least 1 agent in 3 or more classes and 16.9% resistant to every class of antimicrobials tested. Thirteen sequence types (STs) were identified: ST235, ST277, ST234, ST170, ST381, ST175, ST1455, ST1963, ST313, ST207, ST664, ST357 and ST348. Plasmid replicon types IncFI, IncFII, IncA/C, IncL/M, IncN, IncX, IncR and IncFIIK and MOB types F11, F12, H121, P131 and P3 were detected. Meropenem/AgNPs and Amikacin/AgNPs showed enhanced antibacterial activity. We reported the coexistence of carbapenemases and aminoglycoside resistance genes among carbapenem-resistant P. aeruginosa with diverse clonal lineages from Pakistan. Furthermore, we highlighted AgNP's potential role in handling future antimicrobial resistance concerns.
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Affiliation(s)
- Aamir Jamal Gondal
- Department of Biomedical Sciences, King Edward Medical University, Lahore 54000, Pakistan
| | - Nakhshab Choudhry
- Department of Biochemistry, King Edward Medical University, Lahore 54000, Pakistan
| | - Ammara Niaz
- Department of Biochemistry, King Edward Medical University, Lahore 54000, Pakistan
| | - Nighat Yasmin
- Department of Biomedical Sciences, King Edward Medical University, Lahore 54000, Pakistan
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Abu-Baker A, Țigăran AE, Peligrad T, Ion DE, Gheoca-Mutu DE, Avino A, Hariga CS, Moraru OE, Răducu L, Jecan RC. Exploring an Innovative Approach: Integrating Negative-Pressure Wound Therapy with Silver Nanoparticle Dressings in Skin Graft Procedures. J Pers Med 2024; 14:206. [PMID: 38392639 PMCID: PMC10890209 DOI: 10.3390/jpm14020206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/04/2024] [Accepted: 02/09/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND Skin grafting is a helpful instrument in a plastic surgeon's arsenal. Several types of dressings were designed to facilitate the process of graft integration. Negative-pressure wound therapy is a proven dressing method, enhancing graft survival through several mechanisms: aspiration of secretions, stimulation of neoangiogenesis, and promotion of an anti-inflammatory environment. Silver nanoparticle dressings also bring multiple benefits by bearing an antimicrobial effect and providing a humid medium, which are favorable for epithelialization. The combination of NPWT (negative-pressure wound therapy) with AgNPs (silver nanoparticles) has not been widely studied. MATERIALS AND METHODS This study aimed to compare the outcomes of silver nanoparticle sheets with the combination of negative-pressure wound therapy and silver nanoparticle dressings. We conducted a comparative prospective study on 80 patients admitted to the Plastic Surgery Department of "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital between 1st of January 2020 and 31st of December 2022. The study population was randomized to receive either silver nanoparticle dressings or negative-pressure wound therapy (NPWT) combined with silver nanoparticle dressings. Various parameters were monitored, including patient comorbidities and graft-related data such as defect etiology, graft integration, and graft size. Dressings were changed, and graft status was evaluated at 7, 10, and 14 days postoperatively. Additionally, baseline C-reactive protein (CRP) levels were measured before surgery and 7, 10, and 14 days postoperatively. RESULTS The study demonstrated an enhanced integration of skin grafts at all evaluation stages when employing NPWT combined with AgNPs, particularly evident 10 days post operation. Significant variations in graft integration were also observed based on factors such as diabetes, cardiovascular disease, graft size, or the origin of the grafted defect. Moreover, dynamic C-reactive protein monitoring showed a statistically significant decrease in CRP levels 10 days post operation among patients treated with NPWT in conjunction with silver dressing, consistent with the nearly complete integration of skin grafts at this evaluation threshold. CONCLUSION Several factors influence the postoperative evolution of split-skin grafts. Postoperative dressings target local factors to enhance graft integration further. Our research demonstrated that the innovative combination of NPWT-assisted dressings, complemented by a silver nanoparticle sheet, resulted in improved benefits for graft integration and the alleviation of systemic inflammation.
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Affiliation(s)
- Abdalah Abu-Baker
- Doctoral School, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Andrada-Elena Țigăran
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Teodora Peligrad
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Daniela-Elena Ion
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Daniela-Elena Gheoca-Mutu
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
- Discipline of Anatomy, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
| | - Adelaida Avino
- Doctoral School, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Cristian-Sorin Hariga
- Department of Plastic Surgery, Emergency Clinical Hospital, 014461 Bucharest, Romania
- Discipline of Plastic Surgery, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
| | - Oriana Elena Moraru
- Discipline of Cardiovascular Surgery, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
- Department of Vascular Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Laura Răducu
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
- Discipline of Plastic Surgery, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
| | - Radu-Cristian Jecan
- Department of Plastic Surgery, "Prof. Dr. Agrippa Ionescu" Emergency Clinical Hospital, 011356 Bucharest, Romania
- Discipline of Plastic Surgery, "Carol Davila" University of Medicine and Pharmacy, 010221 Bucharest, Romania
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Jia J, Peng Y, Ke K, Liu ZY, Yang W. Achieving a Wide-Range Linear Piezoresistive Response in Electrowritten Soft-Hard Polymer Blends via Salami-Inspired Heterostructure Design. ACS Appl Mater Interfaces 2024; 16:7939-7949. [PMID: 38300761 DOI: 10.1021/acsami.3c18967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Flexible electronics capable of acquiring high-precision signals are in great demand for the development of the internet of things and intelligent artificial. However, it is currently a challenge to simultaneously achieve high signal linearity and sensitivity for stretchable resistive sensors over a wide strain range toward advanced application scenarios requiring high signal accuracy, e.g., sophisticated physiological signal discrimination and displacement measurement. Herein, a film strain sensor, which has an electrical and mechanical dual heterostructure, was fabricated via a direct near-field electrowriting and molecule-guided in situ growth of silver nanoparticles with different concentrations on high-modulus polystyrene domains and low-modulus styrene-butadiene copolymers with a salami-like morphology. Mechanism analyses from both theoretical and experimental investigations reveal that the salami-like heteromodulus microstructure regulates microcrack propagation routes, while the heteroconductivity changes the electron transport paths and amplifies the resistance increase during crack propagation. Therefore, the as-designed strain sensor shows a linear resistive response within ca. 70% strain with a gauge factor of 25, unveiling a simple and scalable strategy for trading off signal linearity and sensitivity over a wide strain range for the fabrication of high-performance linear strain sensors.
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Affiliation(s)
- Jin Jia
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yan Peng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Kai Ke
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- Key Laboratory of Basalt Fiber and Composites of Sichuan Province, Dazhou, Sichuan 635756, China
| | - Zheng-Ying Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Wei Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, China
- Key Laboratory of Basalt Fiber and Composites of Sichuan Province, Dazhou, Sichuan 635756, China
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Won M, Jung M, Kim J, Kim DS. Fully Printed Cellulose Nanofiber-Ag Nanoparticle Composite for High-Performance Humidity Sensor. Nanomaterials (Basel) 2024; 14:343. [PMID: 38392716 PMCID: PMC10892488 DOI: 10.3390/nano14040343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 01/31/2024] [Accepted: 02/06/2024] [Indexed: 02/24/2024]
Abstract
This paper reports a high-performance humidity sensor made using a novel cellulose nanofiber (CNF)-silver nanoparticle (AgNP) sensing material. The interdigital electrode pattern was printed via reverse-offset printing using Ag nano-ink, and the sensing layer on the printed interdigitated electrode (IDE) was formed by depositing the CNF-AgNP composite via inkjet printing. The structure and morphology of the CNF-AgNP layer are characterized using ultraviolet-visible spectroscopy, an X-ray diffractometer, field emission scanning electron microscopy, energy-dispersive X-ray analysis, and transmission electron microscopy. The humidity-sensing performance of the prepared sensors is evaluated by measuring the impedance changes under the relative humidity variation between 10 and 90% relative humidity. The CNF-AgNP sensor exhibited very sensitive and fast humidity-sensing responses compared to the CNF sensor. The electrode distance effect and the response and recovery times are investigated. The enhanced humidity-sensing performance is reflected in the increased conductivity of the Ag nanoparticles and the adsorption of free water molecules associated with the porous characteristics of the CNF layer. The CNF-AgNP composite enables the development of highly sensitive, fast-responding, reproducible, flexible, and inexpensive humidity sensors.
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Affiliation(s)
- Mijin Won
- Department of Creative Convergence Engineering, Hanbat National University, Yuseong-ku, Daejeon 34158, Republic of Korea
| | - Minhun Jung
- Department of Creative Convergence Engineering, Hanbat National University, Yuseong-ku, Daejeon 34158, Republic of Korea
| | - Jaehwan Kim
- Creative Research Center for Nanocellulose Future Composites, Inha University, Incheon 22212, Republic of Korea
| | - Dong-Soo Kim
- Department of Creative Convergence Engineering, Hanbat National University, Yuseong-ku, Daejeon 34158, Republic of Korea
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Meroni G, Laterza G, Tsikopoulos A, Tsikopoulos K, Vitalini S, Scaglia B, Iriti M, Bonizzi L, Martino PA, Soggiu A. Antibacterial Potential of Essential Oils and Silver Nanoparticles against Multidrug-Resistant Staphylococcus pseudintermedius Isolates. Pathogens 2024; 13:156. [PMID: 38392894 PMCID: PMC10893185 DOI: 10.3390/pathogens13020156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Staphylococcus pseudintermedius is an emergent zoonotic agent associated with multidrug resistance (MDR). This work aimed to describe the antibacterial activity of four essential oils (EOs) and silver nanoparticles (AgNPs) against 15 S. pseudintermedius strains isolated from pyoderma. The four EOs, namely Rosmarinus officinalis (RO), Juniperus communis (GI), Citrus sinensis (AR), and Abies alba (AB), and AgNPs were used alone and in combination to determine the Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC). All strains were MDR and methicillin-resistant. Among the antibiotic cohort, only rifampicin, doxycycline, and amikacin were effective. EOs' chemical analysis revealed 124 compounds belonging to various chemical classes. Of them, 35 were found in AR, 75 in AB, 77 in GI, and 57 in RO. The monoterpenic fraction prevailed over the sesquiterpenic in all EOs. When EOs were tested alone, AB showed the lowest MIC followed by GI, AR, and RO (with values ranging from 1:128 to 1:2048). MBC increased in the following order: AB, AR, GI, and RO (with values ranging from 1:512 to 1:2048). MIC and MBC values for AgNPs were 10.74 mg/L ± 4.23 and 261.05 mg/L ± 172.74. In conclusion, EOs and AgNPs could limit the use of antibiotics or improve the efficacy of conventional therapies.
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Affiliation(s)
- Gabriele Meroni
- One Health Unit, Department of Biomedical, Surgical and Dental Sciences, School of Medicine, University of Milan, Via Pascal 36, 20133 Milan, Italy; (G.L.); (S.V.); (M.I.); (L.B.); (P.A.M.); (A.S.)
| | - Giulia Laterza
- One Health Unit, Department of Biomedical, Surgical and Dental Sciences, School of Medicine, University of Milan, Via Pascal 36, 20133 Milan, Italy; (G.L.); (S.V.); (M.I.); (L.B.); (P.A.M.); (A.S.)
- Department of Clinical and Community Sciences, School of Medicine, University of Milan, Via Celoria 22, 20133 Milan, Italy
| | - Alexios Tsikopoulos
- 1st Department of Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.T.); (K.T.)
| | - Konstantinos Tsikopoulos
- 1st Department of Pharmacology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.T.); (K.T.)
| | - Sara Vitalini
- One Health Unit, Department of Biomedical, Surgical and Dental Sciences, School of Medicine, University of Milan, Via Pascal 36, 20133 Milan, Italy; (G.L.); (S.V.); (M.I.); (L.B.); (P.A.M.); (A.S.)
| | - Barbara Scaglia
- Department of Agricultural and Environmental Sciences, University of Milan, Via Celoria 2, 20133 Milan, Italy;
| | - Marcello Iriti
- One Health Unit, Department of Biomedical, Surgical and Dental Sciences, School of Medicine, University of Milan, Via Pascal 36, 20133 Milan, Italy; (G.L.); (S.V.); (M.I.); (L.B.); (P.A.M.); (A.S.)
| | - Luigi Bonizzi
- One Health Unit, Department of Biomedical, Surgical and Dental Sciences, School of Medicine, University of Milan, Via Pascal 36, 20133 Milan, Italy; (G.L.); (S.V.); (M.I.); (L.B.); (P.A.M.); (A.S.)
| | - Piera Anna Martino
- One Health Unit, Department of Biomedical, Surgical and Dental Sciences, School of Medicine, University of Milan, Via Pascal 36, 20133 Milan, Italy; (G.L.); (S.V.); (M.I.); (L.B.); (P.A.M.); (A.S.)
| | - Alessio Soggiu
- One Health Unit, Department of Biomedical, Surgical and Dental Sciences, School of Medicine, University of Milan, Via Pascal 36, 20133 Milan, Italy; (G.L.); (S.V.); (M.I.); (L.B.); (P.A.M.); (A.S.)
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Patnaik N, Dey RJ. Label-Free Citrate-Stabilized Silver Nanoparticles-Based, Highly Sensitive, Cost-Effective, and Rapid Visual Method for the Differential Detection of Mycobacterium tuberculosis and Mycobacterium bovis. ACS Infect Dis 2024; 10:426-435. [PMID: 38112513 DOI: 10.1021/acsinfecdis.3c00390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Tuberculosis poses a global health challenge, and it demands improved diagnostics and therapies. Distinguishing between Mycobacterium tuberculosis (M. tb) and Mycobacterium bovis (M. bovis) infections holds critical "One Health" significance due to the zoonotic nature of these infections and inherent resistance of M. bovis to pyrazinamide, a key part of the directly observed treatment, short-course (DOTS) regimen. Furthermore, most of the currently used molecular detection methods fail to distinguish between the two species. To address this, our study presents an innovative molecular-biosensing strategy. We developed a label-free citrate-stabilized silver nanoparticle aggregation assay that offers sensitive, cost-effective, and swift detection. For molecular detection, genomic markers unique to M. tb and M. bovis were targeted using species-specific primers. In addition to amplifying species-specific regions, these primers also aid the detection of characteristic deletions in each of the mycobacterial species. Post polymerase chain reaction (PCR), we compared two highly sensitive visual detection methods with respect to the traditional agarose gel electrophoresis. The paramagnetic bead-based bridging flocculation assay successfully discriminates M. tb from M. bovis with a sensitivity of ∼40 bacilli. The second strategy exploits citrate-stabilized silver nanoparticles, which aggregate in the absence of amplified dsDNA on the addition of sodium chloride (NaCl). This technique enables the precise, sensitive, and differential detection of as few as ∼4 bacilli. Our study hence advances tuberculosis detection, overcoming the challenges of M. tb and M. bovis differentiation and offering a quicker alternative to time-consuming methods.
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Affiliation(s)
- Naresh Patnaik
- Department of Biological Sciences, BITS Pilani Hyderabad Campus, Hyderabad, Telangana State 500078, India
| | - Ruchi Jain Dey
- Department of Biological Sciences, BITS Pilani Hyderabad Campus, Hyderabad, Telangana State 500078, India
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Hairil Anuar AH, Abd Ghafar SA, Hanafiah RM, Lim V, Mohd Pazli NFA. Critical Evaluation of Green Synthesized Silver Nanoparticles-Kaempferol for Antibacterial Activity Against Methicillin-Resistant Staphylococcus aureus. Int J Nanomedicine 2024; 19:1339-1350. [PMID: 38348172 PMCID: PMC10860521 DOI: 10.2147/ijn.s431499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 11/26/2023] [Indexed: 02/15/2024] Open
Abstract
Introduction This study aimed to characterize silver nanoparticles-kaempferol (AgNP-K) and its antibacterial activities against methicillin-resistant Staphylococcus aureus (MRSA). Green synthesis method was used to synthesize AgNP-K under the influence of temperature and different ratios of silver nitrate (AgNO3 and kaempferol). Methods AgNP-K 1:1 was synthesized with 1 mM kaempferol, whereas AgNP-K 1:2 with 2 mM kaempferol. The characterization of AgNP-K 1:1 and AgNP-K 1:2 was performed using UV-visible spectroscopy (UV-Vis), Zetasizer, transmission electron microscopy (TEM), scanning electron microscopy-dispersive X-ray spectrometer (SEM-EDX), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. The antibacterial activities of five samples (AgNP-K 1:1, AgNP-K 1:2, commercial AgNPs, kaempferol, and vancomycin) at different concentrations (1.25, 2.5, 5, and 10 mg/mL) against MRSA were determined via disc diffusion assay (DDA), minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC) assay, and time-kill assay. Results The presence of a dark brown colour in the solution indicated the formation of AgNP-K. The UV-visible absorption spectrum of the synthesized AgNP-K exhibited a broad peak at 447 nm. TEM, Zetasizer, and SEM-EDX results showed that the morphology and size of AgNP-K were nearly spherical in shape with 16.963 ± 6.0465 nm in size. XRD analysis confirmed that AgNP-K had a crystalline phase structure, while FTIR showed the absence of (-OH) group, indicating that kaempferol was successfully incorporated with silver. In DDA analysis, AgNP-K showed the largest inhibition zone (16.67 ± 1.19 mm) against MRSA as compared to kaempferol and commercial AgNPs. The MIC and MBC values for AgNP-K against MRSA were 1.25 and 2.50 mg/mL, respectively. The time-kill assay results showed that AgNP-K displayed bacteriostatic activity against MRSA. AgNP-K exhibited better antibacterial activity against MRSA when compared to commercial AgNPs or kaempferol alone.
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Affiliation(s)
- Ariff Haikal Hairil Anuar
- Department of Basic Sciences, Faculty of Dentistry, Universiti Sains Islam Malaysia, Kuala Lumpur, 55100, Malaysia
| | - Siti Aisyah Abd Ghafar
- Department of Basic Sciences, Faculty of Dentistry, Universiti Sains Islam Malaysia, Kuala Lumpur, 55100, Malaysia
| | - Rohazila Mohamad Hanafiah
- Department of Basic Sciences, Faculty of Dentistry, Universiti Sains Islam Malaysia, Kuala Lumpur, 55100, Malaysia
| | - Vuanghao Lim
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Penang, 13200, Malaysia
| | - Nur Farah Atiqah Mohd Pazli
- Department of Basic Sciences, Faculty of Dentistry, Universiti Sains Islam Malaysia, Kuala Lumpur, 55100, Malaysia
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Strach A, Dulski M, Wasilkowski D, Matus K, Dudek K, Podwórny J, Rawicka P, Grebnevs V, Waloszczyk N, Nowak A, Poloczek P, Golba S. Multifaceted Assessment of Porous Silica Nanocomposites: Unraveling Physical, Structural, and Biological Transformations Induced by Microwave Field Modification. Nanomaterials (Basel) 2024; 14:337. [PMID: 38392710 PMCID: PMC10893391 DOI: 10.3390/nano14040337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/24/2024]
Abstract
In response to the persistent challenge of heavy and noble metal environmental contamination, our research explores a new idea to capture silver through porous spherical silica nanostructures. The aim was realized using microwave radiation at varying power (P = 150 or 800 W) and exposure times (t = 60 or 150 s). It led to the development of a silica surface with enhanced metal-capture capacity. The microwave-assisted silica surface modification influences the notable changes within the carrier but also enforces the crystallization process of silver nanoparticles with different morphology, structure, and chemical composition. Microwave treatment can also stimulate the formation of core-shell bioactive Ag/Ag2CO3 heterojunctions. Due to the silver nanoparticles' sphericity and silver carbonate's presence, the modified nanocomposites exhibited heightened toxicity against common microorganisms, such as E. coli and S. epidermidis. Toxicological assessments, including minimum inhibitory concentration (MIC) and half-maximal inhibitory concentration (IC50) determinations, underscored the efficacy of the nanocomposites. This research represents a significant stride in addressing pollution challenges. It shows the potential of microwave-modified silicas in the fight against environmental contamination. Microwave engineering underscores a sophisticated approach to pollution remediation and emphasizes the pivotal role of nanotechnology in shaping sustainable solutions for environmental stewardship.
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Affiliation(s)
- Aleksandra Strach
- Doctoral School, University of Silesia, Bankowa 14, 40-032 Katowice, Poland
| | - Mateusz Dulski
- Institute of Materials Engineering, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland (S.G.)
| | - Daniel Wasilkowski
- Institute of Biology, Biotechnology, and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Jagiellonska 28, 40-032 Katowice, Poland; (D.W.); (A.N.)
| | - Krzysztof Matus
- Materials Research Laboratory, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, Poland;
| | - Karolina Dudek
- Łukasiewicz Research Network, Institute of Ceramics and Building Materials, Cementowa 8, 31-938 Cracow, Poland; (K.D.); (J.P.)
| | - Jacek Podwórny
- Łukasiewicz Research Network, Institute of Ceramics and Building Materials, Cementowa 8, 31-938 Cracow, Poland; (K.D.); (J.P.)
| | - Patrycja Rawicka
- A. Chełkowski Institute of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
| | - Vladlens Grebnevs
- Faculty of Chemistry, University of Latvia, Jelgavas Street 1, LV-1004 Riga, Latvia
- Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego Street 6, 44-100 Gliwice, Poland;
| | - Natalia Waloszczyk
- Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego Street 6, 44-100 Gliwice, Poland;
| | - Anna Nowak
- Institute of Biology, Biotechnology, and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Jagiellonska 28, 40-032 Katowice, Poland; (D.W.); (A.N.)
| | - Paulina Poloczek
- Institute of Materials Engineering, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland (S.G.)
| | - Sylwia Golba
- Institute of Materials Engineering, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland (S.G.)
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Miescher I, Rieber J, Schweizer TA, Orlietti M, Tarnutzer A, Andreoni F, Meier Buergisser G, Giovanoli P, Calcagni M, Snedeker JG, Zinkernagel AS, Buschmann J. In Vitro Assessment of Bacterial Adhesion and Biofilm Formation on Novel Bioactive, Biodegradable Electrospun Fiber Meshes Intended to Support Tendon Rupture Repair. ACS Appl Mater Interfaces 2024; 16:6348-6355. [PMID: 38288645 DOI: 10.1021/acsami.3c15710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
The surgical repair of a ruptured tendon faces two major problems: specifically increased fibrous adhesion to the surrounding tissue and inferior mechanical properties of the scar tissue compared to the native tissue. Bacterial attachment to implant materials is an additional problem as it might lead to severe infections and impaired recovery. To counteract adhesion formation, two novel implant materials were fabricated by electrospinning, namely, a random fiber mesh containing hyaluronic acid (HA) and poly(ethylene oxide) (PEO) in a ratio of 1:1 (HA/PEO 1:1) and 1:4 (HA/PEO 1:4), respectively. Electrospun DegraPol (DP) treated with silver nanoparticles (DP-Ag) was developed to counteract the bacterial attachment. The three novel materials were compared to the previously described DP and DP with incorporated insulin-like growth factor-1 (DP-IGF-1), two implant materials that were also designed to improve tendon repair. To test whether the materials are prone to bacterial adhesion and biofilm formation, we assessed 10 strains of Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa, and Enterococcus faecalis, known for causing nosocomial infections. Fiber diameter, pore size, and water contact angle, reflecting different degrees of hydrophobicity, were used to characterize all materials. Generally, we observed higher biofilm formation on the more hydrophobic DP as compared to the more hydrophilic DP-IGF-1 and a trend toward reduced biofilm formation for DP treated with silver nanoparticles. For the two HA/PEO implants, a similar biofilm formation was observed. All tested materials were highly prone to bacterial adherence and biofilm formation, pointing toward the need of further material development, including the optimized incorporation of antibacterial agents such as silver nanoparticles or antibiotics.
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Affiliation(s)
- Iris Miescher
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Julia Rieber
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Tiziano A Schweizer
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091 Zurich, Switzerland
- Department of Dermatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091 Zurich, Switzerland
| | - Mariano Orlietti
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091 Zurich, Switzerland
| | - Andrea Tarnutzer
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091 Zurich, Switzerland
| | - Federica Andreoni
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091 Zurich, Switzerland
| | - Gabriella Meier Buergisser
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Pietro Giovanoli
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Maurizio Calcagni
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Jess G Snedeker
- Laboratory for Orthopedic Biomechanics, Department of Orthopedics, University of Zurich, Lengghalde 5, 8008 Zurich, Switzerland
| | - Annelies S Zinkernagel
- Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091 Zurich, Switzerland
| | - Johanna Buschmann
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
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Singh G, Duhan N, Dhilip Kumar TJ, Nagaraja CM. Pyrene-Based Nanoporous Covalent Organic Framework for Carboxylation of C-H Bonds with CO 2 and Value-Added 2-Oxazolidinones Synthesis under Ambient Conditions. ACS Appl Mater Interfaces 2024; 16:5857-5868. [PMID: 38259199 DOI: 10.1021/acsami.3c16690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
The selective carbon capture and utilization (CCU) as a one-carbon (C1) feedstock offers dual advantages for mitigating the rising atmospheric CO2 content and producing fine chemicals/fuels. In this context, herein, we report the application of a porous bipyridine-functionalized, pyrene-based covalent organic framework (Pybpy-COF) for the stable anchoring of catalytic Ag(0) nanoparticles (NPs) and its catalytic investigation for fixation of CO2 to commodity chemicals at ambient conditions. Notably, Ag@Pybpy-COF showed excellent catalytic activity for the carboxylation of various terminal alkynes to corresponding alkynyl carboxylic acids/phenylpropiolic acids via C-H bond activation under atmospheric pressure conditions. Besides, carboxylative cyclization of various propargylic amines with CO2 to generate 2-oxazolidinones, an important class of antibiotics, has also been achieved under mild conditions. This significant catalytic activity of Ag@Pybpy-COF with wide functional group tolerance is rendered by the presence of highly exposed, alkynophilic Ag(0) catalytic sites decorated on the pore walls of high surface area (787 m2 g-1) Pybpy-COF. Further, density functional theory calculations unveiled the detailed mechanistic path of the Ag@Pybpy-COF-catalyzed transformation of CO2 to alkynyl carboxylic acids and 2-oxazolidinones. Moreover, the catalyst showed high recyclability for several cycles of reuse without significant loss in its catalytic activity and structural rigidity. This work demonstrates the promising application of Pybpy-COF for stable anchoring of Ag NPs for successful transformation of CO2 to valuable commodity chemicals at ambient conditions.
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Affiliation(s)
- Gulshan Singh
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar 140001, Punjab, India
| | - Nidhi Duhan
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar 140001, Punjab, India
| | - T J Dhilip Kumar
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar 140001, Punjab, India
| | - C M Nagaraja
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar 140001, Punjab, India
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Khaled AM, Othman MS, Obeidat ST, Aleid GM, Aboelnaga SM, Fehaid A, Hathout HMR, Bakkar AA, Moneim AEA, El-Garawani IM, Morsi DS. Green-Synthesized Silver and Selenium Nanoparticles Using Berberine: A Comparative Assessment of In Vitro Anticancer Potential on Human Hepatocellular Carcinoma Cell Line (HepG2). Cells 2024; 13:287. [PMID: 38334679 PMCID: PMC10854975 DOI: 10.3390/cells13030287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/26/2024] [Accepted: 01/31/2024] [Indexed: 02/10/2024] Open
Abstract
A well-known natural ingredient found in several medicinal plants, berberine (Ber), has been shown to have anticancer properties against a range of malignancies. The limited solubility and bioavailability of berberine can be addressed using Ber-loaded nanoparticles. In this study, we compared the in vitro cytotoxic effects of both Ber-loaded silver nanoparticles (Ber-AgNPs) and Ber-loaded selenium nanoparticles (Ber-SeNPs) in the human liver cancer cell line (HepG2) and mouse normal liver cells (BNL). The IC50 values in HepG2 for berberine, Ber-AgNPs, Ber-SeNPs, and cisplatin were 26.69, 1.16, 0.04, and 0.33 µg/mL, respectively. Our results show that Ber and its Ag and Se nanoparticles exerted a good antitumor effect against HepG2 cells by inducing apoptosis via upregulating p53, Bax, cytosolic cytochrome C levels, and caspase-3 activity, and the down-regulation of Bcl-2 levels. Similarly, incubation with Ber and both Ber-NPs (Ag and Se) led to a significant dose-dependent elevation in inflammatory markers' (TNF-α, NF-κB, and COX-2) levels compared to the control group. In addition, it led to the arrest of the G1 cell cycle by depleting the expression of cyclin D1 and CDK-2 mRNA. Furthermore, Ber and both Ber-NPs (Ag and Se) caused a significant dose-dependent increase in LDH activity in HepG2 cells. Furthermore, our findings offer evidence that Ber and its nanoparticles intensified oxidative stress in HepG2 cells. Furthermore, the migration rate of cells subjected to berberine and its nanoforms was notably decreased compared to that of control cells. It can be inferred that Ber nanoparticles exhibited superior anticancer efficacy against HepG2 compared to unprocessed Ber, perhaps due to their improved solubility and bioavailability. Furthermore, Ber-SeNPs exhibited greater efficacy than Ber-AgNPs, possibly as a result of the inherent anticancer characteristics of selenium.
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Affiliation(s)
- Azza M. Khaled
- Biochemistry Department, College of Medicine, University of Ha’il, Hail P.O. Box 2440, Saudi Arabia; (A.M.K.); (M.S.O.); (G.M.A.)
| | - Mohamed S. Othman
- Biochemistry Department, College of Medicine, University of Ha’il, Hail P.O. Box 2440, Saudi Arabia; (A.M.K.); (M.S.O.); (G.M.A.)
| | - Sofian T. Obeidat
- Basic Sciences Department, Deanship of Preparatory Year, University of Ha’il, Hail P.O. Box 2440, Saudi Arabia; (S.T.O.); (S.M.A.)
| | - Ghada M. Aleid
- Biochemistry Department, College of Medicine, University of Ha’il, Hail P.O. Box 2440, Saudi Arabia; (A.M.K.); (M.S.O.); (G.M.A.)
| | - Shimaa M. Aboelnaga
- Basic Sciences Department, Deanship of Preparatory Year, University of Ha’il, Hail P.O. Box 2440, Saudi Arabia; (S.T.O.); (S.M.A.)
| | - Alaa Fehaid
- Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Mansoura University, El Mansoura 35516, Egypt;
| | - Heba M. R. Hathout
- Natural Resources Department, Faculty of African Postgraduate Studies, Cairo University, Giza 12613, Egypt;
| | - Ashraf A. Bakkar
- Faculty of Biotechnology, October University for Modern Science and Arts (MSA), Giza 12566, Egypt;
| | - Ahmed E. Abdel Moneim
- Zoology and Entomology Department, Faculty of Science, Helwan University, Ain Helwan, Cairo 11795, Egypt
| | - Islam M. El-Garawani
- Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt; (I.M.E.-G.); (D.S.M.)
| | - Dalia S. Morsi
- Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt; (I.M.E.-G.); (D.S.M.)
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Kakakhel MA, Narwal N, Khan A, Ayub H, Jiang Z, Xiaotao S. Bio-reductive synthesis of silver nanoparticles, its antibacterial efficiency, and possible toxicity in common carp fish (Cyprinus carpio). Microsc Res Tech 2024; 87:349-359. [PMID: 37846045 DOI: 10.1002/jemt.24427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 08/17/2023] [Accepted: 09/13/2023] [Indexed: 10/18/2023]
Abstract
The biological synthesis of nanoparticles is an emerging field of study that seeks to synthesize nanoparticles using non-chemical mechanisms such as microorganisms, plants, and animal blood serum. Among these, plants have gained particular attention due to their ease of handling, availability, and ability to synthesize a wide range of nanoparticles. Therefore, the current study aimed to fabricate the silver nanoparticles (AgNPs) using Chinese medicinal plants (CMP) for their possible toxicity in common carp fish (Cyprinus carpio). For this purpose, CMP was dried, ground, and used as a bio-reductive agent. The fabricated AgNPs were characterized and a well dispersed AgNPs were obtained. Moreover, the C. carpio was exposed to the AgNPs for bioaccumulation and histological alterations. The obtained findings revealed that the AgNPs were mostly accumulated in the intestines followed by the gills, muscles, liver, and brain. The accumulated AgNPs caused histological alterations in gills and intestines at the highest concentration (0.08 mg/L). However, very less alterations were caused by the lowest concentration, especially in the intestine. In conclusion, further in-depth research is needed to determine the risks associated with the usage of nanoparticles to reveal their harmful impacts on fish and the aquatic environment. HIGHLIGHTS: The biological fabrication of AgNPs is considered eco-friendly. Chinese medicinal plants play a significant role in AgNPs synthesis. AgNPs have excellent antibacterial activity. AgNPs are bioaccumulated in various organs of fish.
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Affiliation(s)
- Mian Adnan Kakakhel
- Hubei International Science and Technology Cooperation Base of Fish Passage, China Three Gorges University, Yichang, Hubei, China
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, Hubei, China
| | - Nishita Narwal
- University School of Environment Management, Guru Gobind Singh Indraprastha University, New Delhi, India
| | - Alam Khan
- Sustainable Bioenergy and Biorefinery Laboratory, Department of Microbiology, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Life Sciences, Abasyn University Islamabad Campus, Islamabad, Pakistan
| | - Huma Ayub
- Department of Zoology, Mirpur University of Science and Technology, Mirpur, Pakistan
| | - Zewen Jiang
- Hubei International Science and Technology Cooperation Base of Fish Passage, China Three Gorges University, Yichang, Hubei, China
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, Hubei, China
| | - Shi Xiaotao
- Hubei International Science and Technology Cooperation Base of Fish Passage, China Three Gorges University, Yichang, Hubei, China
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, Hubei, China
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Jamnongkan T, Sirichaicharoenkol K, Kongsomboon V, Srinuan J, Srisawat N, Pangon A, Mongkholrattanasit R, Tammasakchai A, Huang CF. Innovative Electrospun Nanofiber Mats Based on Polylactic Acid Composited with Silver Nanoparticles for Medical Applications. Polymers (Basel) 2024; 16:409. [PMID: 38337298 DOI: 10.3390/polym16030409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 01/27/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Nanofibers are some of the most attractive materials that can modify functionalities for developing new kinds of specific applications and are mainly used as a biomedical material. Herein, we designed and prepared antibacterial nonwoven fiber mats of PLA and PLA composited with Ag nanoparticles by electrospinning. The effects of varying filler contents on their chemical, surface morphology, thermal, water absorbency, and antibacterial properties were investigated using FTIR, SEM/EDS, DSC, swelling ratio, and qualitative and quantitative antibacterial tests. FTIR and EDS spectra indicated that Ag nanoparticles were incorporated in the PLA without chemical bonding. SEM revealed that the average diameter of the PLA nanofibers containing the Ag nanoparticles was more significant than those without those particles. In addition, fiber diameters are proportional to the amount of Ag nanoparticle contents. DSC indicated that the Ag nanoparticles can be incorporated within the PLA matrix without strongly affecting their thermal properties. Moreover, the crystallinity of the composite nonwoven fiber mats was higher than those of fiber mats in the neat PLA. However, TGA revealed that the loaded Ag can improve the thermal stability of the PLA electrospun fiber mats. Accordingly, the antibacterial activities revealed that all the composite nanofiber mats exhibited excellent resistance against S. aureus and E. coli bacterial strains. In addition, in the cell toxicity study, all produced hybrids of nonwoven fiber mats induced a reduction in cell viability for the L929 fibroblast cells. Our results suggest that the designed and prepared nonwoven fiber mats may have good potential for use in the biomedical field, particularly in wound dressing applications.
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Affiliation(s)
- Tongsai Jamnongkan
- Department of Fundamental Science and Physical Education, Faculty of Science at Sriracha, Kasetsart University, Chonburi 20230, Thailand
| | - Kawisara Sirichaicharoenkol
- Department of Fundamental Science and Physical Education, Faculty of Science at Sriracha, Kasetsart University, Chonburi 20230, Thailand
| | - Vanida Kongsomboon
- Department of Fundamental Science and Physical Education, Faculty of Science at Sriracha, Kasetsart University, Chonburi 20230, Thailand
| | - Janitsata Srinuan
- Department of Fundamental Science and Physical Education, Faculty of Science at Sriracha, Kasetsart University, Chonburi 20230, Thailand
| | - Natee Srisawat
- Department of Textile Engineering, Faculty of Engineering, Rajamangala University of Technology Thanyaburi, Pathumthani 12110, Thailand
| | - Autchara Pangon
- Nano Functional Fiber Research Team, National Nanotechnology Center, National Science and Technology Development Agency, Pathumthani 12120, Thailand
| | - Rattanaphol Mongkholrattanasit
- Faculty of Industrial Textiles and Fashion Design, Rajamangala University of Technology Phra Nakhon, Bangkok 10110, Thailand
| | - Achiraya Tammasakchai
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Chih-Feng Huang
- Department of Chemical Engineering, i-Center for Advanced Science and Technology (iCAST), National Chung Hsing University, Taichung 40227, Taiwan
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Ozhava D, Winkler P, Mao Y. Enhancing antimicrobial activity and reducing cytotoxicity of silver nanoparticles through gelatin nanoparticles. Nanomedicine (Lond) 2024; 19:199-211. [PMID: 38271055 DOI: 10.2217/nnm-2023-0246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024] Open
Abstract
Aim: To develop a novel stabilizing agent for silver nanoparticles (AgNPs) with the aim of enhancing its antibacterial efficacy against wound associated pathogens while mitigating their cytotoxic effect on human cells. Materials & methods: In this study, monodispersed gelatin nanoparticles were synthesized to stabilize AgNPs. The stability, antibacterial activity and biocompatibility of the gelatin-stabilized AgNPs (Gel-AgNPs) were compared with citrate-stabilized AgNPs (citrate-AgNPs) or silver ions. Results & conclusion: Gelatin-stabilized AgNPs showed significantly better antibacterial activities compared with citrate-stabilized AgNPs against both Gram-positive and Gram-negative bacteria. These Gel-AgNPs showed significantly lower cytotoxicity to human dermal fibroblasts compared with Ag+. These findings provided the first evidence substantiating a novel functionality of gelatin nanoparticles in both stabilizing and enhancing the activity of AgNPs.
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Affiliation(s)
- Derya Ozhava
- Department of Chemistry & Chemical Biology, Laboratory for Biomaterials Research, Rutgers University, 145 Bevier Rd, Piscataway, NJ 08854, USA
- Department of Chemistry & Chemical Processing Technologies, Cumra Vocational School, Selcuk University, Konya, 42130, Türkiye
| | - Petras Winkler
- Department of Chemistry & Chemical Biology, Laboratory for Biomaterials Research, Rutgers University, 145 Bevier Rd, Piscataway, NJ 08854, USA
| | - Yong Mao
- Department of Chemistry & Chemical Biology, Laboratory for Biomaterials Research, Rutgers University, 145 Bevier Rd, Piscataway, NJ 08854, USA
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Zhu J, Wen T, Qu S, Li Q, Liu B, Zhou W. G-Quadruplex/Hemin DNAzyme-Functionalized Silver Nanoclusters with Synergistic Antibacterial and Wound Healing Capabilities for Infected Wound Management. Small 2024; 20:e2307220. [PMID: 37828643 DOI: 10.1002/smll.202307220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 09/28/2023] [Indexed: 10/14/2023]
Abstract
Systematic management of infected wounds requires simultaneous antiinfection and wound healing, which has become the current treatment dilemma. Recently, a multifunctional silver nanoclusters (AgNCs)-based hydrogel dressing to meet these demands is developed. Here a diblock DNA with a cytosine-rich fragment (as AgNCs template) and a guanine-rich fragment (to form G-quadruplex/hemin DNAzyme, termed G4/hemin) is designed, for G4/hemin functionalization of AgNCs. Inside bacteria, G4/hemin can not only accelerate the oxidative release of Ag+ from AgNCs but also generate reactive oxygen species (ROS) via catalase- and peroxidase-mimic activities, which enhance the antibacterial effect. On the other hand, the AgNCs exhibit robust anti-inflammatory and antioxidative activities to switch M1 macrophages into M2 phenotype, which promotes wound healing. Moreover, the hemin is released to upregulate the heme oxygenase-1, an intracellular enzyme that can relieve oxidative stress, which significantly alleviates the cytotoxicity of silver. As a result, such silver-based dressing achieves potent therapeutic efficacy on infected wounds with excellent biosafety.
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Affiliation(s)
- Jiaojiao Zhu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China
| | - Tiao Wen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China
| | - Shuangquan Qu
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
- Department of Anesthesiology, Hunan Children's Hospital, Changsha, Hunan, 410007, China
| | - Qingnian Li
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China
| | - Biwu Liu
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Wenhu Zhou
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China
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Fatima T, Abrar H, Jahan N, Shamim S, Ahmed N, Ali AB, Begum I, Ahmed W. Molecular marker identification, antioxidant, antinociceptive, and anti-inflammatory responsiveness of malonic acid capped silver nanoparticle. Front Pharmacol 2024; 14:1319613. [PMID: 38357362 PMCID: PMC10864560 DOI: 10.3389/fphar.2023.1319613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 12/21/2023] [Indexed: 02/16/2024] Open
Abstract
Nano-sized silver has drawn a great deal of attention in the field of health sciences owing to its remarkable therapeutic applications. Interestingly, the method applied to synthesize nanoparticles and the choice of reagents considerably influence their therapeutic potential and toxicities. Current research has explored the toxicity, anti-inflammatory, antinociceptive, and antioxidant responses of the malonic acid-capped silver nanoparticles (MA-AgNPs (C) by using sodium borohydride as a reducing agent at low temperatures by employing both in vitro and in vivo approaches. Furthermore, it has highlighted the synergistic effect of these novel compounds with conventional anti-inflammatory therapeutic agents. Acute and sub-acute toxicity analysis performed following OECD guidelines showed that the studied MA-AgNPs (C) are safer, and prominent toxic signs have not been detected at the highest studied dose of 2,000 mg/kg. Cytotoxicity evaluation through brine shrimp lethality revealed 20% lethality at the highest concentration of 169.8 μg/mL. Significantly, positive anti-inflammatory and analgesic responses alone as well as synergism with the standard were identified through in vitro as well as in vivo methods which were more potent at a lower dose (200 mg/kg). Notably synergistic outcomes were more pronounced than individual ones, indicating their prominent effect as a feasible drug delivery system. IL-6 and TNF-α assessment in excised paw tissue through RTPCR technique further supported their anti-inflammatory potential. DPPH assay revealed eminent in vitro antioxidant activity which was further corroborated by in vivo antioxidant assessment through evaluation of SOD in excised paw tissue.
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Affiliation(s)
- Tehrim Fatima
- Department of Pharmacology, Dow College of Pharmacy, Faculty of Pharmaceutical Sciences, Dow University of Health Sciences, Karachi, Pakistan
| | - Hina Abrar
- Department of Pharmacology, Dow College of Pharmacy, Faculty of Pharmaceutical Sciences, Dow University of Health Sciences, Karachi, Pakistan
| | - Noor Jahan
- Department of Pharmacology, Dow College of Pharmacy, Faculty of Pharmaceutical Sciences, Dow University of Health Sciences, Karachi, Pakistan
| | - Sana Shamim
- Department of Pharmaceutical Chemistry, Dow College of Pharmacy, Faculty of Pharmaceutical Sciences, Dow University of Health Sciences, Karachi, Pakistan
| | - Nazia Ahmed
- Dow Research Institute of Biotechnology and Biosciences, Dow University of Health Sciences, Karachi, Pakistan
| | - Asma Basharat Ali
- Department of Anatomy, Jinnah Medical and Dental College, Karachi, Pakistan
| | - Irshad Begum
- Department of Chemistry, University of Karachi, Karachi, Pakistan
| | - Waqas Ahmed
- School of Public Health, Dow University of Health Sciences, Karachi, Pakistan
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Hue DT, Hiep HP. Synthesized uniform-different sizes silver nanoparticles using TSC and SBH simultaneously for antibacterial application. Biomed Phys Eng Express 2024; 10:025016. [PMID: 38237173 DOI: 10.1088/2057-1976/ad201f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/18/2024] [Indexed: 01/31/2024]
Abstract
Silver nanoparticles (AgNPs) in the form of nanospheres from a few nm to 100 nm in diameter were synthesized in a controlled manner using a combination of two reducing agents: sodium borohydride (SBH) and trisodium citrate (TSC). The influence of the size of AgNPs on antibacterial activity was investigated with different concentrations of AgNPs on two types of bacteria:Pseudomonas aeruginosa(PA) andStaphylococcus aureusresistant (SA) while the positive control wasAmpicillin (Amp)50μg/ml and the negative control was water. AgNPs were investigated for morphology, size and size distribution using transmission electron microscopy (TEM) and dynamic light scattering (DLS) measurements. The optical properties of the AgNPs were investigated by recording their UV-vis absorption spectra. The antimicrobial activity of AgNPs was determined using the disc diffusion method. The results showed that the antibacterial ability of AgNPs depends on both concentration and particle size. With a particle concentration of 50μg ml-1, the antibacterial ability is the best. The smaller the particle size, the higher the antibacterial ability. The simultaneous use of two reducing agents TSC and SBH is the novelty of the article to synthesize AgNPs particles that are uniform in shape and size while controlling the particle size. On that basis, their antibacterial performance is increased.
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Affiliation(s)
- Do Thi Hue
- Thai Nguyen University of Education, No. 20, Luong Ngoc Quyen Street, Quang Trung Ward, Thai Nguyen City, Vietnam
| | - Hoang Phu Hiep
- Thai Nguyen University of Education, No. 20, Luong Ngoc Quyen Street, Quang Trung Ward, Thai Nguyen City, Vietnam
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Alghofaily M, Alfraih J, Alsaud A, Almazrua N, Sumague TS, Auda SH, Alsalleeh F. The Effectiveness of Silver Nanoparticles Mixed with Calcium Hydroxide against Candida albicans: An Ex Vivo Analysis. Microorganisms 2024; 12:289. [PMID: 38399693 PMCID: PMC10891542 DOI: 10.3390/microorganisms12020289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/19/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
INTRODUCTION The purpose of this study was to assess the antifungal activity of silver nanoparticles (AgNPs) in combination with calcium hydroxide (Ca(OH)2) against Candida albicans (C. albicans). METHODS AgNPs was mixed with pure Ca(OH)2 powder in an aqueous base. A standard suspension (1 × 108 bacterial cells/mL) of C. albicans was prepared in a 96-well plate and incubated on shaker at 37 °C in 100% humidity to allow fungal biofilm formation in infected dentin slices (n = 98). The minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) of AgNPs alone or with Ca(OH)2 were determined. The samples were separately placed in 24-well tissue culture plates and divided into three experimental groups (0.03, 0.04, and 0.06) and three control groups; negative (saline) and positive chlorhexidine gel and Ca(OH)2. Quantitative measurements of fungal activity by XTT colorimetric assay and qualitative measurements using confocal laser microscopy and scanning electron microscopy were performed. RESULTS The cell viability of C. albicans in the experimental groups was significantly reduced compared to the negative control group. The combination of (AgNPs (0.04%) and Ca(OH)2) was the most potent against C. albicans. CONCLUSIONS The findings demonstrated that combining silver nanoparticles with Ca(OH)2 was more effective against C. albicans biofilm compared to Ca(OH)2 alone, suggesting a combing effect.
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Affiliation(s)
- Maha Alghofaily
- Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh 11461, Saudi Arabia;
| | - Jood Alfraih
- College of Dentistry, King Saud University, Riyadh 11461, Saudi Arabia; (J.A.); (N.A.)
| | - Aljohara Alsaud
- College of Dentistry, King Saud University, Riyadh 11461, Saudi Arabia; (J.A.); (N.A.)
| | - Norah Almazrua
- College of Dentistry, King Saud University, Riyadh 11461, Saudi Arabia; (J.A.); (N.A.)
| | - Terrence S. Sumague
- Molecular and Cell Biology Laboratory, Prince Naif Bin AbdulAziz Health Research Center, College of Dentistry, King Saud University, Riyadh 11461, Saudi Arabia;
| | - Sayed H. Auda
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11461, Saudi Arabia;
| | - Fahd Alsalleeh
- Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh 11461, Saudi Arabia;
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Raduly FM, Raditoiu V, Raditoiu A, Grapin M, Constantin M, Răut I, Nicolae CA, Frone AN. Ag 0-Ginger Nanocomposites Integrated into Natural Hydrogelated Matrices Used as Antimicrobial Delivery Systems Deposited on Cellulose Fabrics. Gels 2024; 10:106. [PMID: 38391436 PMCID: PMC10887898 DOI: 10.3390/gels10020106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/16/2024] [Accepted: 01/23/2024] [Indexed: 02/24/2024] Open
Abstract
In the textile, medical, and food industries, many of the applications have targeted the use of textile fabrics with antimicrobial properties. Obtaining eco-friendly coatings is of wide interest, especially for applications related to wound dressing or to food packaging. In order to obtain coatings with antimicrobial properties through environmentally friendly methods, a series of experiments were carried out on the use of natural polymers loaded with silver nanoparticles. In this study, coatings with antimicrobial properties were obtained by depositing natural composites based on rice flour, carob flour, or alginate on cotton fabrics. These antimicrobial coatings were multicomponent systems, in which the host matrix was generated via hydration of natural polymers. The nanocomposite obtained from the phytosynthesis of silver particles in ginger extract was embedded in hydrogel matrices. The multicomponent gels obtained by embedding silver nanoparticles in natural polymer matrices were deposited on cotton fabric and were studied in relation to nanoparticles and the type of host matrix, and the antimicrobial activity was evaluated. Fabrics coated with such systems provide a hydrophilic surface with antimicrobial properties and can therefore be used in various areas where textiles provide antibacterial protection.
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Affiliation(s)
- Florentina Monica Raduly
- Laboratory of Functional Dyes and Related Materials, National Research and Development Institute for Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei, 6th District, 060021 Bucharest, Romania
| | - Valentin Raditoiu
- Laboratory of Functional Dyes and Related Materials, National Research and Development Institute for Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei, 6th District, 060021 Bucharest, Romania
| | - Alina Raditoiu
- Laboratory of Functional Dyes and Related Materials, National Research and Development Institute for Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei, 6th District, 060021 Bucharest, Romania
| | - Maria Grapin
- Laboratory of Functional Dyes and Related Materials, National Research and Development Institute for Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei, 6th District, 060021 Bucharest, Romania
| | - Mariana Constantin
- Laboratory of Functional Dyes and Related Materials, National Research and Development Institute for Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei, 6th District, 060021 Bucharest, Romania
- Faculty of Pharmacy, Titu Maiorescu University, Bd. Gh. Sincai, No.16, 040441 Bucharest, Romania
| | - Iuliana Răut
- Laboratory of Functional Dyes and Related Materials, National Research and Development Institute for Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei, 6th District, 060021 Bucharest, Romania
| | - Cristian Andi Nicolae
- Laboratory of Functional Dyes and Related Materials, National Research and Development Institute for Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei, 6th District, 060021 Bucharest, Romania
| | - Adriana Nicoleta Frone
- Laboratory of Functional Dyes and Related Materials, National Research and Development Institute for Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei, 6th District, 060021 Bucharest, Romania
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Franco Molina MA, Reding Hernández D, García Coronado PL, Kawas JR, Zárate Triviño DG, Hernández Martínez SP, Castro Valenzuela BE, Rodríguez Padilla C. Antitumor efficacy of silver nanoparticles reduced with β-D-glucose as neoadjuvant therapy to prevent tumor relapse in a mouse model of breast cancer. Front Pharmacol 2024; 14:1332439. [PMID: 38333224 PMCID: PMC10851876 DOI: 10.3389/fphar.2023.1332439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 12/29/2023] [Indexed: 02/10/2024] Open
Abstract
Introduction: Neoadjuvant therapy constitutes a valuable modality for diminishing tumor volume prior to surgical resection. Nonetheless, its application encounters limitations in the context of recurrent tumors, which manifest resistance to conventional treatments. Silver nanoparticles (AgNPs) have emerged as a promising alternative for cancer treatment owing to their cytotoxic effects. Methods: Cellular viability was assessed by Alamar blue assay in 4T1 breast cancer cell line. Silver biodistribution was detected by an inductively coupled plasma optical emission spectrometer in an in vivo mice model. For neoadjuvant evaluation, mice were randomized and treated intratumoral with AgNPs-G or intraperitoneally with doxorubicin (DOX) as a control. Recurrence was determined after 170 days by counting lung metastatic nodules (dyed with Bouin solution) with histological confirmation by H&E. Masson's stain, Ki67 immunohistochemistry, and a TUNEL assay were performed in lungs from treated mice. Results: AgNPs-G reduced 4T1 cell viability and in an ex vivo assay the AgNPs-G decreased the tumor cell viability. After intravenous administration of AgNPs-G were detected in different organs. After intratumor administration, AgNPs-G are retained. The AgNPs-G treatment significantly reduced tumor volume before its surgical resection. AgNPs-G reduced the development of lung metastatic nodules and the expression of Ki67. TUNEL assay indicated that AgNPs-G didn't induce apoptosis. Conclusions: We concluded that intratumor administration of AgNPs-G reduced tumor volume before surgical resection, alongside a reduction in lung metastatic nodules, and Ki67 expression. These findings provide valuable insights into the AgNPs-G potential for intratumor and neoadjuvant cancer therapies. However, further research is needed to explore their full potential and optimize their use in clinical settings.
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Affiliation(s)
- Moisés Armides Franco Molina
- Laboratorio de Inmunología y Virología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, Mexico
| | - David Reding Hernández
- Laboratorio de Inmunología y Virología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, Mexico
| | - Paola Leonor García Coronado
- Laboratorio de Inmunología y Virología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, Mexico
| | - Jorge R. Kawas
- Posgrado Conjunto Agronomía-Veterinaria, Universidad Autónoma de Nuevo León, General Escobedo, Nuevo León, Mexico
| | - Diana G. Zárate Triviño
- Laboratorio de Inmunología y Virología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, Mexico
| | | | - Beatriz Elena Castro Valenzuela
- Laboratorio de Inmunología y Virología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, Mexico
| | - Cristina Rodríguez Padilla
- Laboratorio de Inmunología y Virología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, Mexico
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Balciunaitiene A, Januskevice V, Saunoriute S, Raubyte U, Viskelis J, Memvanga PB, Viskelis P. Antimicrobial Antioxidant Polymer Films with Green Silver Nanoparticles from Symphyti radix. Polymers (Basel) 2024; 16:317. [PMID: 38337206 DOI: 10.3390/polym16030317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/03/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
Antimicrobial natural polymer film with silver nanoparticles (AgNPs) biosynthesized using aqueous plant root extracts as reducing capping agents and for film formatting show extensive applicability for pathogenic microorganism problems. The formation of AgNPs was confirmed by transmission electron microscopy (TEM) and scanning electron microscopy-energy-dispersive spectroscopy (SEM-EDS) techniques. The antimicrobial activity of biofilm with green AgNPs was analysed by inhibiting the growth of Gram-negative and Gram-positive bacteria culture using the Kirby-Bauer disk diffusion susceptibility test. Total phenolic content and antioxidant activity were slightly higher in aqueous extracts of Sym. Radix than in Sym. Radix/AgNPs. The antimicrobial effect of polymer film/AgNPs against selected test bacteria cultures was substantially more robust than with pure film. Pictures of AgNPs obtained by TEM revealed the presence of spherical-shaped nano-objects with an average size 27.45 nm. SEM-EDS studies confirmed the uniform distribution of metal nanoparticles throughout the biopolymeric matrix. Morphological studies of the surface showed that the obtained surface of the films was even, without holes or other relief irregularities. These apparent Symphyti radix polymer film/AgNPs' biological functions could provide a platform for fighting pathogenic bacteria in the era of multi-drug resistance.
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Affiliation(s)
- Aiste Balciunaitiene
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, 54333 Baptai, Lithuania
| | - Viktorija Januskevice
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, 54333 Baptai, Lithuania
| | - Sandra Saunoriute
- Research Institute of Natural and Technological Sciences, Vytautas Magnus University, 40444 Kaunas, Lithuania
| | - Urte Raubyte
- Life Sciences Center, Vilnius University, 10257 Vilnius, Lithuania
| | - Jonas Viskelis
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, 54333 Baptai, Lithuania
| | - Patrick B Memvanga
- Centre de Recherche et d'Innovation Technologique en Environnement et en Sciences de la Santé (CRITESS), Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa B.P. 212, Democratic Republic of the Congo
| | - Pranas Viskelis
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, 54333 Baptai, Lithuania
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50
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Șuică-Bunghez IR, Senin RM, Sorescu AA, Ganciarov M, Răut I, Firincă C, Constantin M, Gifu IC, Stoica R, Fierăscu I, Fierăscu RC. Application of Lavandula angustifolia Mill. Extracts for the Phytosynthesis of Silver Nanoparticles: Characterization and Biomedical Potential. Plants (Basel) 2024; 13:333. [PMID: 38337867 PMCID: PMC10857192 DOI: 10.3390/plants13030333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/17/2024] [Accepted: 01/21/2024] [Indexed: 02/12/2024]
Abstract
Nanotechnology can offer a series of new "green" and eco-friendly methods for developing different types of nanoparticles, among which the development of nanomaterials using plant extracts (phytosynthesis) represents one of the most promising areas of research. This present study details the use of lavender flowers (Lavandula angustifolia Mill., well-known for their use in homeopathic applications) for the biosynthesis of silver nanoparticles with enhanced antioxidant and antibacterial properties. Several qualitative and quantitative assays were carried out in order to offer an image of the extracts' composition (the recorded total phenolics content varied between 21.0 to 40.9 mg GAE (gallic acid equivalents)/g dry weight (d.w.), while the total flavonoids content ranged between 3.57 and 16.8 mg CE (catechin equivalents)/g d.w.), alongside modern analytical methods (such as gas chromatography-mass spectrometry-GC-MS, quantifying 12 phytoconstituents present in the extracts). The formation of silver nanoparticles (AgNPs) using lavender extract was studied by UV-Vis spectroscopy, Fourier-transform infrared spectrometry (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), and dynamic light scattering (DLS)/zeta potential, with the selected nanoparticles having crystallite sizes of approx. 14.55 nm (AgNP-L2) and 4.61 nm, respectively (for AgNP-L4), and hydrodynamic diameters of 392.4 nm (for AgNP-L2) and 391.6 nm (for AgNP-L4), determined by DLS. A zeta potential of around -6.4 mV was displayed for both samples while presenting as large aggregates, in which nanoparticle clusters with dimensions of around 130-200 nm can be observed. The biomedical applications of the extracts and the corresponding phytosynthesized nanoparticles were evaluated using antioxidant and antimicrobial assays. The obtained results confirmed the phytosynthesis of the silver nanoparticles using Lavandula angustifolia Mill. extracts, as well as their antioxidant and antimicrobial potential.
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Affiliation(s)
- Ioana Raluca Șuică-Bunghez
- The National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.R.Ș.-B.); (A.A.S.); (M.G.); (I.R.); (C.F.); (M.C.); (I.C.G.); (R.S.); (I.F.)
| | - Raluca Mădălina Senin
- The National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.R.Ș.-B.); (A.A.S.); (M.G.); (I.R.); (C.F.); (M.C.); (I.C.G.); (R.S.); (I.F.)
| | - Ana Alexandra Sorescu
- The National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.R.Ș.-B.); (A.A.S.); (M.G.); (I.R.); (C.F.); (M.C.); (I.C.G.); (R.S.); (I.F.)
| | - Mihaela Ganciarov
- The National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.R.Ș.-B.); (A.A.S.); (M.G.); (I.R.); (C.F.); (M.C.); (I.C.G.); (R.S.); (I.F.)
| | - Iuliana Răut
- The National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.R.Ș.-B.); (A.A.S.); (M.G.); (I.R.); (C.F.); (M.C.); (I.C.G.); (R.S.); (I.F.)
| | - Cristina Firincă
- The National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.R.Ș.-B.); (A.A.S.); (M.G.); (I.R.); (C.F.); (M.C.); (I.C.G.); (R.S.); (I.F.)
- Faculty of Biology, University of Bucharest, 91 Splaiul Independenței, 050104 Bucharest, Romania
| | - Mariana Constantin
- The National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.R.Ș.-B.); (A.A.S.); (M.G.); (I.R.); (C.F.); (M.C.); (I.C.G.); (R.S.); (I.F.)
- Faculty of Pharmacy, “Titu Maiorescu” University, 187 Calea Vacaresti, 040051 Bucharest, Romania
| | - Ioana Cătălina Gifu
- The National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.R.Ș.-B.); (A.A.S.); (M.G.); (I.R.); (C.F.); (M.C.); (I.C.G.); (R.S.); (I.F.)
| | - Rusăndica Stoica
- The National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.R.Ș.-B.); (A.A.S.); (M.G.); (I.R.); (C.F.); (M.C.); (I.C.G.); (R.S.); (I.F.)
| | - Irina Fierăscu
- The National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.R.Ș.-B.); (A.A.S.); (M.G.); (I.R.); (C.F.); (M.C.); (I.C.G.); (R.S.); (I.F.)
- Faculty of Horticulture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Blvd., 011464 Bucharest, Romania
| | - Radu Claudiu Fierăscu
- The National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM Bucharest, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.R.Ș.-B.); (A.A.S.); (M.G.); (I.R.); (C.F.); (M.C.); (I.C.G.); (R.S.); (I.F.)
- Faculty of Chemical Engineering and Biotechnology, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania
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