1
|
Subramani K, Wutthithien P, Saha R, Lindblad P, Incharoensakdi A. Characterization and potentiality of plant-derived silver nanoparticles for enhancement of biomass and hydrogen production in Chlorella sp. under nitrogen deprived condition. CHEMOSPHERE 2024; 361:142514. [PMID: 38830468 DOI: 10.1016/j.chemosphere.2024.142514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 01/24/2024] [Accepted: 05/31/2024] [Indexed: 06/05/2024]
Abstract
Energy is a crucial entity for the development and it has various alternative forms of energy sources. Recently, the synthesis of nanoparticles using benign biocatalyst has attracted increased attention. In this study, silver nanoparticles were synthesized and characterized using Azadirachta indica plant-derived phytochemical as the reducing agent. Biomass of the microalga Chlorella sp. cultivated in BG11 medium increased after exposure to low concentrations of up to 0.48 mg L-1 AgNPs. In addition, algal cells treated with 0.24 mg L-1 AgNPs and cultivated in BG110 medium which contained no nitrogen source showed the highest hydrogen yield of 10.8 mmol L-1, whereas the untreated cells under the same conditions showed very low hydrogen yield of 0.003 mmol L-1. The enhanced hydrogen production observed in the treated cells was consistent with an increase in hydrogenase activity. Treatment of BG110 grown cells with low concentration of green synthesized AgNPs at 0.24 mg L-1 enhanced hydrogenase activity with a 5-fold increase of enzyme activity compared to untreated BG110 grown cells. In addition, to improve photolytic water splitting efficiency for hydrogen production, cells treated with AgNPs at 0.24 mg L-1 showed highest oxygen evolution signifying improvement in photosynthesis. The silver nanoparticles synthesized using phytochemicals derived from plant enhanced both microalgal biomass and hydrogen production with an added advantage of CO2 reduction which could be achieved due to an increase in biomass. Hence, treating microalgae with nanoparticles provided a promising strategy to reduce the atmospheric carbon dioxide as well as increasing production of hydrogen as clean energy.
Collapse
Affiliation(s)
- Karthik Subramani
- Laboratory of Cyanobacterial Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok -103330, Thailand
| | - Palaya Wutthithien
- Laboratory of Cyanobacterial Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok -103330, Thailand
| | - Raunak Saha
- Centre for Nanoscience and Technology, K S Rangasamy College of Technology, Tiruchengode 637215, Tamil Nadu, India
| | - Peter Lindblad
- Microbial Chemistry, Department of Chemistry-Ångström, Uppsala University, Uppsala, Sweden
| | - Aran Incharoensakdi
- Laboratory of Cyanobacterial Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok -103330, Thailand; Academy of Science, Royal Society of Thailand, Bangkok - 10300, Thailand.
| |
Collapse
|
2
|
Thepbandit W, Papathoti NK, Hoang NH, Siriwong S, Sangpueak R, Saengchan C, Laemchiab K, Kiddeejing D, Tonpho K, Buensanteai K. Bio-synthesis and characterization of silver nanoparticles from Trichoderma species against cassava root rot disease. Sci Rep 2024; 14:12535. [PMID: 38821999 PMCID: PMC11143289 DOI: 10.1038/s41598-024-60903-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 04/29/2024] [Indexed: 06/02/2024] Open
Abstract
Cassava root rot disease caused by the fungal pathogens Fusarium solani and Lasiodiplodia theobromae produces severe damages on cassava production. This research was conducted to produce and assess silver nanoparticles (AgNPs) synthesized by Trichoderma harzianum for reducing root rot disease. The results revealed that using the supernatants of T. harzianum on a silver nitrate solution changed it to reddish color at 48 h, indicating the formation of AgNPs. Further characterization was identified using dynamic light scattering (DLS) and scanning electron microscope (SEM). DLS supported that the Z-average size is at 39.79 nm and the mean zeta potential is at - 36.5 mV. SEM revealed the formation of monodispersed spherical shape with a diameter between 60-75 nm. The antibacterial action of AgNPs as an antifungal agent was demonstrated by an observed decrease in the size of the fungal colonies using an increasing concentration of AgNPs until the complete inhibition growth of L. theobromae and F. solani at > 58 µg mL-1 and at ≥ 50 µg mL-1, respectively. At in vitro conditions, the applied AgNPs caused a decrease in the percentage of healthy aerial hyphae of L. theobromae (32.5%) and of F. solani (70.0%) compared to control (100%). The SR-FTIR spectra showed the highest peaks in the first region (3000-2800 cm-1) associated with lipids and fatty acids located at 2962, 2927, and 2854 cm-1 in the AgNPs treated samples. The second region (1700-1450 cm-1) consisting of proteins and peptides revealed the highest peaks at 1658, 1641, and 1548 cm-1 in the AgNPs treated samples. The third region (1300-900 cm-1), which involves nucleic acid, phospholipids, polysaccharides, and carbohydrates, revealed the highest peaks at 1155, 1079, and 1027 cm-1 in the readings from the untreated samples. Finally, the observed root rot severity on cassava roots treated with AgNPs (1.75 ± 0.50) was significantly lower than the control samples (5.00 ± 0.00).
Collapse
Affiliation(s)
- Wannaporn Thepbandit
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Narendra Kumar Papathoti
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Nguyen Huy Hoang
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | | | - Rungthip Sangpueak
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Chanon Saengchan
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Kansinee Laemchiab
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Dusadee Kiddeejing
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Kodchaphon Tonpho
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Kumrai Buensanteai
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.
| |
Collapse
|
3
|
Nkosi NC, Basson AK, Ntombela ZG, Dlamini NG, Pullabhotla RVSR. Green Synthesis, Characterization and Application of Silver Nanoparticles Using Bioflocculant: A Review. Bioengineering (Basel) 2024; 11:492. [PMID: 38790359 PMCID: PMC11117625 DOI: 10.3390/bioengineering11050492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/08/2024] [Accepted: 05/11/2024] [Indexed: 05/26/2024] Open
Abstract
Nanotechnology has emerged as an effective means of removing contaminants from water. Traditional techniques for producing nanoparticles, such as physical methods (condensation and evaporation) and chemical methods (oxidation and reduction), have demonstrated high efficiency. However, these methods come with certain drawbacks, including the significant energy requirement and the use of costly and hazardous chemicals that may cause nanoparticles to adhere to surfaces. To address these limitations, researchers are actively developing alternative procedures that are cost-effective, environmentally safe, and user-friendly. One promising approach involves biological synthesis, which utilizes plants or microorganisms as reducing and capping agents. This review discusses various methods of nanoparticle synthesis, with a focus on biological synthesis using naturally occurring bioflocculants from microorganisms. Bioflocculants offer several advantages, including harmlessness, biodegradability, and minimal secondary pollution. Furthermore, the review covers the characterization of synthesized nanoparticles, their antimicrobial activity, and cytotoxicity. Additionally, it explores the utilization of these NPs in water purification and dye removal processes.
Collapse
Affiliation(s)
- Nkanyiso C. Nkosi
- Biochemistry and Microbiology Department, Faculty of Science, Agriculture, and Engineering, P/Bag X1001, University of Zululand, KwaDlangezwa 3886, South Africa; (A.K.B.); (Z.G.N.); (N.G.D.)
| | - Albertus K. Basson
- Biochemistry and Microbiology Department, Faculty of Science, Agriculture, and Engineering, P/Bag X1001, University of Zululand, KwaDlangezwa 3886, South Africa; (A.K.B.); (Z.G.N.); (N.G.D.)
| | - Zuzingcebo G. Ntombela
- Biochemistry and Microbiology Department, Faculty of Science, Agriculture, and Engineering, P/Bag X1001, University of Zululand, KwaDlangezwa 3886, South Africa; (A.K.B.); (Z.G.N.); (N.G.D.)
| | - Nkosinathi G. Dlamini
- Biochemistry and Microbiology Department, Faculty of Science, Agriculture, and Engineering, P/Bag X1001, University of Zululand, KwaDlangezwa 3886, South Africa; (A.K.B.); (Z.G.N.); (N.G.D.)
| | - Rajasekhar V. S. R. Pullabhotla
- Chemistry Department, Faculty of Science, Agriculture, and Engineering, P/Bag X1001, University of Zululand, KwaDlangezwa 3886, South Africa
| |
Collapse
|
4
|
Al-Radadi NS, Al-Bishri WM, Salem NA, ElShebiney SA. Plant-mediated green synthesis of gold nanoparticles using an aqueous extract of Passiflora ligularis, optimization, characterizations, and their neuroprotective effect on propionic acid-induced autism in Wistar rats. Saudi Pharm J 2024; 32:101921. [PMID: 38283153 PMCID: PMC10820356 DOI: 10.1016/j.jsps.2023.101921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 12/12/2023] [Indexed: 01/30/2024] Open
Abstract
The current study was conducted to examine an innovative method for synthesizing gold nanoparticles (AuNPs) from an aqueous sweet granadilla (Passiflora ligularis Juss) P. ligularis. Furthermore, the synthesized AuNPs were used to explore their potential neuroprotective impact against propionic acid (PPA)-induced autism. A sweet granadilla extract was used to achieve the synthesis of AuNPs. The structural and dimensional dispersion of AuNPs were confirmed by different techniques, including UV-Vis spectrophotometer (UV-Vis), X-ray Diffraction (XRD) Pattern, Energy Dispersive X-ray (EDX), Zeta potential, and High-Resolution Transmission Electron Microscopy (HRTEM) analysis. The AuNPs mediated by P. ligularis adopt a spherical shape morphology and the particle size was distributed in the range of 8.43-13 nm without aggregation. Moreover, in vivo, the anti-autistic effects of AuNPs administration were higher than those of P. ligularis extract per second. In addition, the reduced anxiety and neurobehavioral deficits of AuNPs were observed in autistic rats which halted the brain oxidative stress, reduced inflammatory cytokines, ameliorated neurotransmitters, and neurochemical release, and suppressed apoptotic genes (p < 0.05). The alleviated antiapoptotic gene expression and histopathological analysis confirmed that the treatment of AuNPs showed significant neural pathways that aid in reducing tissue damage and necrosis. The results emphasize that the biomedical activity was increased by using the green source synthesis P. ligularis -AuNPs. Additionally, the formulation of AuNPs demonstrates strong neuroprotective effects against PPA-induced autism that were arbitrated by a range of different mechanisms, such as anti-inflammatory, antioxidant, neuromodulator, and antiapoptotic effects.
Collapse
Affiliation(s)
- Najlaa S. Al-Radadi
- Department of Chemistry, Faculty of Science, Taibah University, P.O. Box 30002, Al-Madinah Al-Munawarah 14177, Saudi Arabia
| | - Widad M. Al-Bishri
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Neveen A. Salem
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia
- Department of Narcotics, Ergogenic Aids and Poisons, Medical Research and Clinical Studies Institute, National Research Centre, Cairo, Egypt
| | - Shaimaa A. ElShebiney
- Department of Narcotics, Ergogenic Aids and Poisons, Medical Research and Clinical Studies Institute, National Research Centre, Cairo, Egypt
| |
Collapse
|
5
|
Al-Sahli SA, Al-Otibi F, Alharbi RI, Amina M, Al Musayeib NM. Silver nanoparticles improve the fungicidal properties of Rhazya stricta decne aqueous extract against plant pathogens. Sci Rep 2024; 14:1297. [PMID: 38221517 PMCID: PMC10788342 DOI: 10.1038/s41598-024-51855-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 01/10/2024] [Indexed: 01/16/2024] Open
Abstract
One of the most promising, non-toxic, and biocompatible developments for many biological activities is the green synthesis of nanoparticles from plants. In this work, we investigated the antifungal activity of silver nanoparticles (AgNPs) biosynthesized from Rhazya stricta aqueous extract against several plant pathogenic fungi. UV-visible spectroscopy, Zeta potential analysis, Fourier-transform infrared spectroscopy (FTIR), and transmitted electron microscopy (TEM) were used to analyze the biosynthesized AgNPs. Drechslera halodes, Drechslera tetramera, Macrophomina phaseolina, Alternaria alternata, and Curvularia australiensis were tested for their potential antifungal activity. Surface Plasmon Resonance (SPR) of Aq. AgNPs and Alkaline Aq. AgNPs was observed at 405 nm and 415 nm, respectively. FTIR analysis indicated hydroxyl, nitrile, amine, and ketone functional groups. Aq. AgNPs and Alka-line Aq. AgNPs had velocities of - 27.7 mV and - 37.9 mV and sizes of 21-90 nm and 7.2-25.3 nm, respectively, according to zeta potential studies and TEM. The antifungal examination revealed that all species' mycelial development was significantly inhibited, accompanied by severe ultra-structural alterations. Among all treatments, Aq. AgNPs were the most effective fungicide. M. phaseolina was statistically the most resistant, whereas A. alternata was the most vulnerable. To the best of our knowledge, this is the first report on R. stricta's antifungal activity against these species.
Collapse
Affiliation(s)
- Sarah A Al-Sahli
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia
| | - Fatimah Al-Otibi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia.
| | - Raedah I Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia
| | - Musarat Amina
- Department of Pharmacognosy, Pharmacy College, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Nawal M Al Musayeib
- Department of Pharmacognosy, Pharmacy College, King Saud University, 11451, Riyadh, Saudi Arabia
| |
Collapse
|
6
|
Bahramikia S, Izadi R. Plant-based green synthesis of nanoparticles as an effective and safe treatment for gastric ulcer. Inflammopharmacology 2023; 31:2843-2855. [PMID: 37921959 DOI: 10.1007/s10787-023-01367-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 10/06/2023] [Indexed: 11/05/2023]
Abstract
Gastric ulcer is a chronic disease that affects about 10% of the world's population. This disease is caused by factors such as stress, smoking, alcohol consumption, nonsteroidal anti-inflammatory drugs (NSAIDs), Helicobacter pylori infection, and genetic factors. Herbal medicines such as plant extracts are new sources of drugs with promising results in treating gastric ulcers. Nanotechnology and nanomedicine have been able to reach this objective to some extent. Green synthesis is an alternative method adapted for chemical and physical methods. In the last few years, fungi, bacteria, viruses, algae, and plants have been used to produce metallic nanoparticles. Since nanoparticles synthesized by the green method can be effective in anticancer, antidiabetic, antiulcer, anti-inflammatory, and antioxidant treatments, the aim of this review was to study the effect of metal nanoparticles and metal oxides produced by the green method on the treatment of gastric ulcers. For this purpose, an electronic search of published research and review articles in PubMed, Scopus, Science Direct, Cochrane databases, and Google Scholar was conducted using a combination of keywords of "gastric ulcers and nanoparticles", "gastric ulcers and Green synthesis" and "stomach ulcers and nanoparticles". After a full review of published articles and their references, 120 articles were identified for further detailed review. The articles selected were between 2000 and March 2023, and 2 articles published in 1972 and 1997 were utilized. The results of this study have shown that polymeric, metal, and metal oxide nanoparticles synthesized from plants can be effective in treating gastric ulcers, especially ulcers caused by H. pylori, ethanol, and NSAIDs.
Collapse
Affiliation(s)
- Seifollah Bahramikia
- Department of Biology, Faculty of Basic Sciences, Lorestan University, Khorramabad, Iran.
| | - Rezvan Izadi
- Department of Biology, Faculty of Basic Sciences, Lorestan University, Khorramabad, Iran
| |
Collapse
|
7
|
Aygun A, Sahin G, Tiri RNE, Tekeli Y, Sen F. Colorimetric sensor based on biogenic nanomaterials for high sensitive detection of hydrogen peroxide and multi-metals. CHEMOSPHERE 2023; 339:139702. [PMID: 37553042 DOI: 10.1016/j.chemosphere.2023.139702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/27/2023] [Accepted: 07/30/2023] [Indexed: 08/10/2023]
Abstract
Hydrogen peroxide (H2O2) and heavy metals, which are among the wastes of the industrial sector, become a threat to living things and the environment above certain concentrations. Therefore, the detection of both H2O2 and heavy metals with simple, low-cost, and fast analytical methods has gained great importance. The use of nanoparticles in colorimetric sensor technology for the detection of these analytes provides great advantages. In recent years, green synthesis of nanomaterials with products that can be considered biowaste is among the popular topics. In this study, silver/silver chloride nanoparticles (Ag@AgCl NPs) were synthesized using the green synthesis method as an eco-friendly and cheap method, the green algae extract was used as a reducing agent. The characterization of Ag@AgCl nanoparticles and green algae extract was carried out with several techniques such as Transmission Electron Microscopy (TEM), UV-Visible spectrometry (UV-Vis), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction patterns (XRD) methods were used for characterization. According to TEM analysis, the Ag@AgCl NPs typically spherical in form and range in size from 4 to 10 nm, and UV-vis showed the formation of surface plasmon resonance (SPR) of the Ag@AgCl between 400 and 450 nm. In addition, its activity as a colorimetric sensor for hydrogen peroxide (H2O2) and multi-metal detection was evaluated. Interestingly, Ag/AgCl NPs caused different color formations for 3 metals simultaneously in the sensor study for heavy metal detection, and Fe3+, Cu2+, and Cr6+ ions were detected. The R2 values for H2O2, Fe3+, Cu2+, and Cr6+ were 0.9360, 0.9961, 0.9787, and 0.9625 the limit of detection (LOD) was 43.75, 1.69, 3.18, and 5.05 ppb (ng/mL), respectively. It was determined that Ag@AgCl NPs have the potential to be used as a colorimetric sensor for the detection of H2O2 and heavy metals from wastewater.
Collapse
Affiliation(s)
- Aysenur Aygun
- Sen Research Group, Biochemistry Department, Faculty of Arts and Science, Dumlupinar University, Evliya Celebi Campus, 43100, Kutahya, Turkiye; SRG Incorporated Company, Kutahya Design & Technopole, Calca OSB Neighbourhood, 43100 Kutahya, Turkiye
| | - Gulsade Sahin
- Sen Research Group, Biochemistry Department, Faculty of Arts and Science, Dumlupinar University, Evliya Celebi Campus, 43100, Kutahya, Turkiye
| | - Rima Nour Elhouda Tiri
- Sen Research Group, Biochemistry Department, Faculty of Arts and Science, Dumlupinar University, Evliya Celebi Campus, 43100, Kutahya, Turkiye; SRG Incorporated Company, Kutahya Design & Technopole, Calca OSB Neighbourhood, 43100 Kutahya, Turkiye
| | - Yener Tekeli
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Adiyaman University, Adiyaman University Central Campus, 02040, Adiyaman, Turkiye
| | - Fatih Sen
- Sen Research Group, Biochemistry Department, Faculty of Arts and Science, Dumlupinar University, Evliya Celebi Campus, 43100, Kutahya, Turkiye; SRG Incorporated Company, Kutahya Design & Technopole, Calca OSB Neighbourhood, 43100 Kutahya, Turkiye.
| |
Collapse
|
8
|
Tomah AA, Zhang Z, Alamer ISA, Khattak AA, Ahmed T, Hu M, Wang D, Xu L, Li B, Wang Y. The Potential of Trichoderma-Mediated Nanotechnology Application in Sustainable Development Scopes. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2475. [PMID: 37686983 PMCID: PMC10490099 DOI: 10.3390/nano13172475] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023]
Abstract
The environmental impact of industrial development has been well-documented. The use of physical and chemical methods in industrial development has negative consequences for the environment, raising concerns about the sustainability of this approach. There is a growing need for advanced technologies that are compatible with preserving the environment. The use of fungi products for nanoparticle (NP) synthesis is a promising approach that has the potential to meet this need. The genus Trichoderma is a non-pathogenic filamentous fungus with a high degree of genetic diversity. Different strains of this genus have a variety of important environmental, agricultural, and industrial applications. Species of Trichoderma can be used to synthesize metallic NPs using a biological method that is environmentally friendly, low cost, energy saving, and non-toxic. In this review, we provide an overview of the role of Trichoderma metabolism in the synthesis of metallic NPs. We discuss the different metabolic pathways involved in NP synthesis, as well as the role of metabolic metabolites in stabilizing NPs and promoting their synergistic effects. In addition, the future perspective of NPs synthesized by extracts of Trichoderma is discussed, as well as their potential applications in biomedicine, agriculture, and environmental health.
Collapse
Affiliation(s)
- Ali Athafah Tomah
- State Key Laboratory for Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (A.A.T.); (Z.Z.)
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (I.S.A.A.); (A.A.K.); (T.A.); (B.L.)
- Plant Protection, College of Agriculture, University of Misan, Al-Amarah 62001, Iraq
| | - Zhen Zhang
- State Key Laboratory for Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (A.A.T.); (Z.Z.)
| | - Iman Sabah Abd Alamer
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (I.S.A.A.); (A.A.K.); (T.A.); (B.L.)
- Plant Protection, Agriculture Directorate, Al-Amarah 62001, Iraq
| | - Arif Ali Khattak
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (I.S.A.A.); (A.A.K.); (T.A.); (B.L.)
| | - Temoor Ahmed
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (I.S.A.A.); (A.A.K.); (T.A.); (B.L.)
- Xianghu Laboratory, Hangzhou 311231, China
| | - Minjun Hu
- Agricultural Technology Extension Center of Fuyang District, Hangzhou 311400, China;
| | - Daoze Wang
- Hangzhou Rural Revitalization Service Center, Hangzhou 310020, China;
| | - Lihui Xu
- Institute of Eco-Environmental Protection, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Bin Li
- State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (I.S.A.A.); (A.A.K.); (T.A.); (B.L.)
| | - Yanli Wang
- State Key Laboratory for Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (A.A.T.); (Z.Z.)
| |
Collapse
|
9
|
Piecuch A, Targońska S, Rewak-Sorczyńska J, Ogórek R, Wiglusz RJ. New silicate-substituted hydroxyapatite materials doped with silver ions as potential antifungal agents. BMC Microbiol 2023; 23:193. [PMID: 37464289 PMCID: PMC10353133 DOI: 10.1186/s12866-023-02930-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/03/2023] [Indexed: 07/20/2023] Open
Abstract
BACKGROUND Hydroxyapatites (HAp) are widely used as medical preparations for e.g., bone replacement or teeth implants. Incorporation of various substrates into HAp structures could enhance its biological properties, like biocompatibility or antimicrobial effects. Silver ions possess high antibacterial and antifungal activity and its application as HAp dopant might increase its clinical value. RESULTS New silicate-substituted hydroxyapatites (HAp) doped with silver ions were synthesized via hydrothermal methods. The crystal structure of HAp was investigated by using the X-ray powder diffraction. Antifungal activity of silver ion-doped HAp (with 0.7 mol%, 1 mol% and 2 mol% of dopants) was tested against the yeast-like reference and clinical strains of Candida albicans, C. glabrata, C. tropicalis, Rhodotorula rubra, R. mucilaginosa, Cryptococcus neoformans and C. gattii. Spectrophotometric method was used to evaluate antifungal effect of HAp in SD medium. It was shown that already the lowest dopant (0.7 mol% of Ag+ ions) significantly reduced fungal growth at the concentration of 100 µg/mL. Increase in the dopant content and the concentration of HAp did not cause further growth inhibition. Moreover, there were some differences at the tolerance level to Ag+ ion-doped HAp among tested strains, suggesting strain-specific activity. CONCLUSIONS Preformed studies confirm antimicrobial potential of hydroxyapatite doped with silver. New Ag+ ion-HAp material could be, after further studies, considered as medical agent with antifungal properties which lower the risk of a surgical-related infections.
Collapse
Affiliation(s)
- Agata Piecuch
- Department of Mycology and Genetics, University of Wrocław, Przybyszewskiego 63/77, Wroclaw, 51-148, Poland.
| | - Sara Targońska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wroclaw, 50-422, Poland
| | - Justyna Rewak-Sorczyńska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wroclaw, 50-422, Poland
| | - Rafał Ogórek
- Department of Mycology and Genetics, University of Wrocław, Przybyszewskiego 63/77, Wroclaw, 51-148, Poland
| | - Rafal J Wiglusz
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, Wroclaw, 50-422, Poland.
| |
Collapse
|
10
|
Al-Otibi FO, Yassin MT, Al-Askar AA, Maniah K. Green Biofabrication of Silver Nanoparticles of Potential Synergistic Activity with Antibacterial and Antifungal Agents against Some Nosocomial Pathogens. Microorganisms 2023; 11:microorganisms11040945. [PMID: 37110368 PMCID: PMC10144991 DOI: 10.3390/microorganisms11040945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/20/2023] [Accepted: 03/21/2023] [Indexed: 04/07/2023] Open
Abstract
Nosocomial bacterial and fungal infections are one of the main causes of high morbidity and mortality worldwide, owing to the high prevalence of multidrug-resistant microbial strains. Hence, the study aims to synthesize, characterize, and investigate the antifungal and antibacterial activity of silver nanoparticles (AgNPs) fabricated using Camellia sinensis leaves against nosocomial pathogens. The biogenic AgNPs revealed a small particle diameter of 35.761 ± 3.18 nm based on transmission electron microscope (TEM) graphs and a negative surface charge of −14.1 mV, revealing the repulsive forces between nanoparticles, which in turn indicated their colloidal stability. The disk diffusion assay confirmed that Escherichia coli was the most susceptible bacterial strain to the biogenic AgNPs (200 g/disk), while the lowest sensitive strain was found to be the Acinetobacter baumannii strain with relative inhibition zones of 36.14 ± 0.67 and 21.04 ± 0.19 mm, respectively. On the other hand, the biogenic AgNPs (200 µg/disk) exposed antifungal efficacy against Candida albicans strain with a relative inhibition zone of 18.16 ± 0.14 mm in diameter. The biogenic AgNPs exposed synergistic activity with both tigecycline and clotrimazole against A. baumannii and C. albicans, respectively. In conclusion, the biogenic AgNPs demonstrated distinct physicochemical properties and potential synergistic bioactivity with tigecycline, linezolid, and clotrimazole against gram-negative, gram-positive, and fungal strains, respectively. This is paving the way for the development of effective antimicrobial combinations for the effective management of nosocomial pathogens in intensive care units (ICUs) and health care settings.
Collapse
Affiliation(s)
- Fatimah O. Al-Otibi
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed Taha Yassin
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdulaziz A. Al-Askar
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Khalid Maniah
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| |
Collapse
|
11
|
Ivanišević I. The Role of Silver Nanoparticles in Electrochemical Sensors for Aquatic Environmental Analysis. SENSORS (BASEL, SWITZERLAND) 2023; 23:3692. [PMID: 37050752 PMCID: PMC10099384 DOI: 10.3390/s23073692] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
With rapidly increasing environmental pollution, there is an urgent need for the development of fast, low-cost, and effective sensing devices for the detection of various organic and inorganic substances. Silver nanoparticles (AgNPs) are well known for their superior optoelectronic and physicochemical properties, and have, therefore, attracted a great deal of interest in the sensor arena. The introduction of AgNPs onto the surface of two-dimensional (2D) structures, incorporation into conductive polymers, or within three-dimensional (3D) nanohybrid architectures is a common strategy to fabricate novel platforms with improved chemical and physical properties for analyte sensing. In the first section of this review, the main wet chemical reduction approaches for the successful synthesis of functional AgNPs for electrochemical sensing applications are discussed. Then, a brief section on the sensing principles of voltammetric and amperometric sensors is given. The current utilization of silver nanoparticles and silver-based composite nanomaterials for the fabrication of voltammetric and amperometric sensors as novel platforms for the detection of environmental pollutants in water matrices is summarized. Finally, the current challenges and future directions for the nanosilver-based electrochemical sensing of environmental pollutants are outlined.
Collapse
Affiliation(s)
- Irena Ivanišević
- Department of General and Inorganic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| |
Collapse
|
12
|
Ghosh S, Mondol S, Lahiri D, Nag M, Sarkar T, Pati S, Pandit S, Alarfaj AA, Mohd Amin MF, Edinur HA, Ahmad Mohd Zain MR, Ray RR. Biogenic silver nanoparticles (AgNPs) from Tinosporacordifolia leaves: An effective antibiofilm agent against Staphylococcus aureus ATCC 23235. Front Chem 2023; 11:1118454. [PMID: 36959877 PMCID: PMC10028272 DOI: 10.3389/fchem.2023.1118454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 01/30/2023] [Indexed: 03/09/2023] Open
Abstract
Medicinal plants are long known for their therapeutic applications. Tinospora cordifolia (commonly called gulancha or heart-leaved moonseed plant), a herbaceous creeper widely has been found to have antimicrobial, anti-inflammatory, anti-diabetic, and anti-cancer properties. However, there remains a dearth of reports regarding its antibiofilm activities. In the present study, the anti-biofilm activities of phytoextractof T. cordifolia and the silver nanoparticles made from this phytoextract were tested against the biofilm of S.taphylococcus aureus, one of the major nosocomial infection-producing bacteria taking tetracycline antibiotic as control. Both phytoextract from the leaves of T. cordifolia, and the biogenic AgNPs from the leaf extract of T. cordifolia, were found successful in reducing the biofilm of Staphylococcus aureus. The biogenic AgNPs formed were characterized by UV- Vis spectroscopy, Field emission Scanning Electron Microscopy (FE- SEM), and Dynamic light scattering (DLS) technique. FE- SEM images showed that the AgNPs were of size ranging between 30 and 50 nm and were stable in nature, as depicted by the zeta potential analyzer. MIC values for phytoextract and AgNPs were found to be 180 mg/mL and 150 μg/mL against S. aureusrespectively. The antibiofilm properties of the AgNPs and phytoextract were analyzed using the CV assay and MTT assay for determining the reduction of biofilms. Reduction in viability count and revival of the S. aureus ATCC 23235 biofilm cells were analyzed followed by the enfeeblement of the EPS matrix to quantify the reduction in the contents of carbohydrates, proteins and eDNA. The SEM analyses clearly indicated that although the phytoextracts could destroy the biofilm network of S. aureuscells yet the biogenicallysynthesizedAgNPs were more effective in biofilm disruption. Fourier Transformed Infrared Radiations (FT- IR) analyses revealed that the AgNPs could bring about more exopolysaccharide (EPS) destruction in comparison to the phytoextract. The antibiofilm activities of AgNPs made from the phytoextract were found to be much more effective than the non-conjugated phytoextract, indicating the future prospect of using such particles for combatting biofilm-mediated infections caused by S aureus.
Collapse
Affiliation(s)
- Sreejita Ghosh
- Department of Biotechnology, MaulanaAbulKalam Azad University of Technology, Kolkata, West Bengal, India
| | - Somdutta Mondol
- Department of Biotechnology, MaulanaAbulKalam Azad University of Technology, Kolkata, West Bengal, India
| | - Dibyajit Lahiri
- Department of Biotechnology, University of Engineering and Management, Kolkata, West Bengal, India
| | - Moupriya Nag
- Department of Biotechnology, University of Engineering and Management, Kolkata, West Bengal, India
| | - Tanmay Sarkar
- Department of Food Processing Technology, Malda Polytechnic, West Bengal State Council of Technical Education, Govt. of West Bengal, Malda, India
| | - Siddhartha Pati
- Skills innovation and Academic network (SIAN) Institute-ABC, Balasore, Odisha, India
- NatNov Private Limited, Greater Noida, Odisha, India
| | - Soumya Pandit
- Department of Life Science, Sharda University, Noida, India
| | - Abdullah A. Alarfaj
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohamad Faiz Mohd Amin
- Environmental Technology Division, School of Industrial Technology, UniversitiSains Malaysia, Penang, Malaysia
| | - Hisham Atan Edinur
- Renewable Biomass Transformation Cluster, School of Industrial Technology, UniversitiSains Malaysia, Penang, Malaysia
| | - Muhammad Rajaei Ahmad Mohd Zain
- School of Health Sciences, UniversitiSains Malaysia, Health Campus, Kelantan, Malaysia
- *Correspondence: Muhammad Rajaei Ahmad Mohd Zain, ; Rina Rani Ray,
| | - Rina Rani Ray
- Department of Biotechnology, MaulanaAbulKalam Azad University of Technology, Kolkata, West Bengal, India
- *Correspondence: Muhammad Rajaei Ahmad Mohd Zain, ; Rina Rani Ray,
| |
Collapse
|
13
|
Metabolomic Profiling of the Responses of Planktonic and Biofilm Vibrio cholerae to Silver Nanoparticles. Antibiotics (Basel) 2022; 11:antibiotics11111534. [DOI: 10.3390/antibiotics11111534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
Vibrio cholerae causes cholera and can switch between planktonic and biofilm lifeforms, where biofilm formation enhances transmission, virulence, and antibiotic resistance. Due to antibiotic microbial resistance, new antimicrobials including silver nanoparticles (AgNPs) are being studied. Nevertheless, little is known about the metabolic changes exerted by AgNPs on both microbial lifeforms. Our objective was to evaluate the changes in the metabolomic profile of V. cholerae planktonic and biofilm cells in response to sublethal concentrations of AgNPs using MS2 untargeted metabolomics and chemoinformatics. A total of 690 metabolites were quantified among all groups. More metabolites were significantly modulated in planktonic cells (n = 71) compared to biofilm (n = 37) by the treatment. The chemical class profiles were distinct for both planktonic and biofilm, suggesting a phenotype-dependent metabolic response to the nanoparticles. Chemical enrichment analysis showed altered abundances of oxidized fatty acids (FA), saturated FA, phosphatidic acids, and saturated stearic acid in planktonic cells treated with AgNPs, which hints at a turnover of the membrane. In contrast, no chemical classes were enriched in the biofilm. In conclusion, this study suggests that the response of V. cholerae to silver nanoparticles is phenotype-dependent and that planktonic cells experience a lipid remodeling process, possibly related to an adaptive mechanism involving the cell membrane.
Collapse
|
14
|
Archana, Kumar Chaudhary A, Saini S, Srivastava R, Kumar M, Narain Sharma S. Ultrafast Transient Absorption Spectroscopic (UFTAS) and Antibacterial Efficacy Studies of Phytofabricated Silver Nanoparticles using Ocimum Sanctum Leaf Extract. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Mussin J, Giusiano G. Biogenic silver nanoparticles as antifungal agents. Front Chem 2022; 10:1023542. [PMID: 36277355 PMCID: PMC9583421 DOI: 10.3389/fchem.2022.1023542] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 09/20/2022] [Indexed: 12/05/2022] Open
Abstract
In recent years, an increase in multidrug-resistant fungal strains has been observed, which, together with the limited number of clinically available antifungal agents, highlights the need for the development of new antifungal agents. Due to the proven antifungal activity of silver nanoparticles (AgNPs), there is a growing interest in their use in the treatment of fungal infections. Nanoparticles are usually synthesised through a variety of physical and chemical processes that are costly and pollute the environment. For this reason, biogenic synthesis is emerging as an environmentally friendly technology and new strategies are increasingly based on the use of biogenic AgNPs as antifungal agents for clinical use. The aim of this review is to compare the antifungal activity of different biogenic AgNPs and to summarise the current knowledge on the mechanisms of action and resistance of fungi to AgNPs. Finally, a general analysis of the toxicity of biogenic AgNPs in human and veterinary medicine is performed.
Collapse
|
16
|
Singh M, Thakur V, Kumar V, Raj M, Gupta S, Devi N, Upadhyay SK, Macho M, Banerjee A, Ewe D, Saurav K. Silver Nanoparticles and Its Mechanistic Insight for Chronic Wound Healing: Review on Recent Progress. Molecules 2022; 27:molecules27175587. [PMID: 36080353 PMCID: PMC9457915 DOI: 10.3390/molecules27175587] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/29/2022] [Accepted: 08/05/2022] [Indexed: 11/29/2022] Open
Abstract
Wounds are structural and functional disruptions of skin that occur because of trauma, surgery, acute illness, or chronic disease conditions. Chronic wounds are caused by a breakdown in the finely coordinated cascade of events that occurs during healing. Wound healing is a long process that split into at least three continuous and overlapping processes: an inflammatory response, a proliferative phase, and finally the tissue remodeling. Therefore, these processes are extensively studied to develop novel therapeutics in order to achieve maximum recovery with minimum scarring. Several growth hormones and cytokines secreted at the site of lesions tightly regulates the healing processes. The traditional approach for wound management has been represented by topical treatments. Metal nanoparticles (e.g., silver, gold and zinc) are increasingly being employed in dermatology due to their favorable effects on healing, as well as in treating and preventing secondary bacterial infections. In the current review, a brief introduction on traditional would healing approach is provided, followed by focus on the potential of wound dressing therapeutic techniques functionalized with Ag-NPs.
Collapse
Affiliation(s)
- Manoj Singh
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana 133207, India
| | - Vanita Thakur
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana 133207, India
| | - Vikas Kumar
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana 133207, India
| | - Mayank Raj
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana 133207, India
| | - Shivani Gupta
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana 133207, India
| | - Nisha Devi
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana 133207, India
| | - Sushil Kumar Upadhyay
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana 133207, India
| | - Markéta Macho
- Laboratory of Algal Biotechnology-Centre Algatech, Institute of Microbiology of the Czech Academy of Sciences, 37901 Třeboň, Czech Republic
| | - Avik Banerjee
- Laboratory of Algal Biotechnology-Centre Algatech, Institute of Microbiology of the Czech Academy of Sciences, 37901 Třeboň, Czech Republic
| | - Daniela Ewe
- Laboratory of Algal Biotechnology-Centre Algatech, Institute of Microbiology of the Czech Academy of Sciences, 37901 Třeboň, Czech Republic
| | - Kumar Saurav
- Laboratory of Algal Biotechnology-Centre Algatech, Institute of Microbiology of the Czech Academy of Sciences, 37901 Třeboň, Czech Republic
- Correspondence: ; Tel.: +420-737-003-359
| |
Collapse
|
17
|
Gutiérrez de la Rosa SY, Muñiz Diaz R, Villalobos Gutiérrez PT, Patakfalvi R, Gutiérrez Coronado Ó. Functionalized Platinum Nanoparticles with Biomedical Applications. Int J Mol Sci 2022; 23:ijms23169404. [PMID: 36012670 PMCID: PMC9409011 DOI: 10.3390/ijms23169404] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 12/21/2022] Open
Abstract
Functionalized platinum nanoparticles have been of considerable interest in recent research due to their properties and applications, among which they stand out as therapeutic agents. The functionalization of the surfaces of nanoparticles can overcome the limits of medicine by increasing selectivity and thereby reducing the side effects of conventional drugs. With the constant development of nanotechnology in the biomedical field, functionalized platinum nanoparticles have been used to diagnose and treat diseases such as cancer and infections caused by pathogens. This review reports on physical, chemical, and biological methods of obtaining platinum nanoparticles and the advantages and disadvantages of their synthesis. Additionally, applications in the biomedical field that can be utilized once the surfaces of nanoparticles have been functionalized with different bioactive molecules are discussed, among which antibodies, biodegradable polymers, and biomolecules stand out.
Collapse
|
18
|
Antibiofilm Effect of Silver Nanoparticles in Changing the Biofilm-Related Gene Expression of Staphylococcus epidermidis. Int J Mol Sci 2022; 23:ijms23169257. [PMID: 36012520 PMCID: PMC9409202 DOI: 10.3390/ijms23169257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/08/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022] Open
Abstract
Nowadays, antibiotic resistance is a major public health problem. Among staphylococci, infections caused by Staphylococcus epidermidis (S. epidermidis) are frequent and difficult to eradicate. This is due to its ability to form biofilm. Among the antibiotic substances, nanosilver is of particular interest. Based on this information, we decided to investigate the effect of nanosilver on the viability, biofilm formation and gene expression of the icaADBC operon and the icaR gene for biofilm and non-biofilm S. epidermidis strains. As we observed, the viability of all the tested strains decreased with the use of nanosilver at a concentration of 5 µg/mL. The ability to form biofilm also decreased with the use of nanosilver at a concentration of 3 µg/mL. Genetic expression of the icaADBC operon and the icaR gene varied depending on the ability of the strain to form biofilm. Low concentrations of nanosilver may cause increased biofilm production, however no such effect was observed with high concentrations. This confirms that the use of nanoparticles at an appropriately high dose in any future therapy is of utmost importance. Data from our publication confirm the antibacterial and antibiotic properties of nanosilver. This effect was observed phenotypically and also by levels of gene expression.
Collapse
|
19
|
A Promising Antifungal and Antiamoebic Effect of Silver Nanorings, a Novel Type of AgNP. Antibiotics (Basel) 2022; 11:antibiotics11081054. [PMID: 36009923 PMCID: PMC9405138 DOI: 10.3390/antibiotics11081054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 07/29/2022] [Accepted: 08/02/2022] [Indexed: 11/16/2022] Open
Abstract
Silver nanoparticles (AgNPs) play an important role in the medical field due to their potent antimicrobial activity. This, together with the constant emergence of resistance to antimicrobial drugs, means AgNPs are often investigated as an alternative to solve this problem. In this article, we analyzed the antifungal and antiamoebic effects of a recently described type of AgNP, silver nanorings (AgNRs), and compared them with other types of AgNPs. Tests of the activity of AgNPs against various fungal and amoebic species were carried out. In all cases, AgNPs showed a high biocidal effect, although with fungi this depended on the species involved. Antifungal activity was detected by the conditioning of culture media or water but this effect was not dependent on the release of Ag ions. On the other hand, the proliferation of Acanthamoeba castellanii trophozoites was reduced by silver nanorings (AgNRs) and silver nanowires (AgNWs), with AgNWs being capable of totally inhibiting the germination of A. castellanii cysts. AgNRs constitute a new type of AgNP with an antifungal and antiacanthamoebic activity. These results open the door to new and effective antimicrobial therapies as an alternative to the use of antifungals or antiamoebic drugs, thus avoiding the constant appearance of resistance and the difficulty of eradicating infections.
Collapse
|
20
|
Palladium Nanoparticles Synthesized by Laser Ablation in Liquids for Antimicrobial Applications. NANOMATERIALS 2022; 12:nano12152621. [PMID: 35957051 PMCID: PMC9370528 DOI: 10.3390/nano12152621] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 02/01/2023]
Abstract
Antibiotic resistance is a leading cause of death worldwide. In this paper, we explore new alternatives in the treatment of infections. Noble metal nanoparticles could help to mitigate this problem. In this work, palladium nanoparticles were synthesized by laser ablation in order to explore their antimicrobial capacity. To obtain palladium nanoparticles, a palladium plate immersed in water, or methanol, was ablated, using two pulsed lasers that emit radiation with wavelengths of 532 nm and 1064 nm, respectively. Pure Pd-NPs with crystalline microstructure and rounded shape were obtained. The nanoparticles’ size is more homogeneous if the laser wavelength is 532 nm, and it decreases when methanol is used as solvent, reaching mean diameters smaller than 6 nm. With the objective of studying antimicrobial activity against Staphylococcus aureus, the Pd-NPs were immobilized on the surface of titanium discs. The release of palladium ions was recorded during the first seven days, and the cytotoxicity of the immobilized NPs was also tested with L929 mouse fibroblast cell line. Palladium nanoparticles synthesized by means of the infrared laser in methanol showed a strong inhibitory effect on S. aureus and good cytocompatibility, with no toxic effect on fibroblast cells.
Collapse
|
21
|
Perli G, Bertuzzi DL, Souto DEP, Ramos MD, Braga CB, Aguiar SB, Ornelas C. Synthesis and Characterization of Dendronized Gold Nanoparticles Bearing Charged Peripheral Groups with Antimicrobial Potential. NANOMATERIALS 2022; 12:nano12152610. [PMID: 35957042 PMCID: PMC9370457 DOI: 10.3390/nano12152610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 11/16/2022]
Abstract
Dendronized gold nanoparticles (AuNPs) were synthesized bearing charged peripheral groups. Two novel AB3-type dendrons were synthesized with a thiol group at the focal point followed by their attachment to AuNPs. Dendrons were designed to have nine charged peripheral groups (carboxyl or amine), glycol solubilizing, units and one thiol moiety at the focal point. Both dendrons and all intermediates were synthesized in high yields and characterized by nuclear magnetic resonance spectroscopy (NMR) and mass spectrometry (MS). The amine- and carboxyl-terminated dendrons were used to functionalize gold nanoparticles (AuNPs) previously stabilized with citrate. The nanoparticles’ diameters and their colloidal stability were investigated using dynamic light scattering (DLS). The size and morphology of the dendronized AuNPs were evaluated by scanning electron microscopy (SEM), which revealed individual particles with no aggregation after replacement of citrate by the dendrons, in agreement with the DLS data. The absorption spectroscopy reveals a prominent plasmonic band at 560 nm for all AuNPs. The zeta potential further confirmed the expected charged structures of the dendronized AuNPs. Considering all the physical–chemical properties of the charged dendronized AuNPs developed in this work, these AuNPs might be used as a weapon against multi-drug resistant bacterial infections.
Collapse
Affiliation(s)
- Gabriel Perli
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
| | - Diego L. Bertuzzi
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
| | - Dênio E. P. Souto
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
- Laboratorio de Espectrometria, Sensores e Biossensores, Departamento de Quimica, Universidade Federal do Paraná (UFPR), Curitiba 81531-980, Brazil
| | - Miguel D. Ramos
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
| | - Carolyne B. Braga
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
| | - Samile B. Aguiar
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
| | - Catia Ornelas
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil; (G.P.); (D.L.B.); (D.E.P.S.); (M.D.R.); (C.B.B.); (S.B.A.)
- Correspondence:
| |
Collapse
|
22
|
Green Synthesis of Silver Nanoparticles Using Spent Coffee Ground Extracts: Process Modelling and Optimization. NANOMATERIALS 2022; 12:nano12152597. [PMID: 35957027 PMCID: PMC9370399 DOI: 10.3390/nano12152597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/16/2022] [Accepted: 07/26/2022] [Indexed: 11/21/2022]
Abstract
Large amounts of spent coffee grounds (SCGs) are produced annually worldwide. SCGs contain high levels of phenolics and other bioactive compounds that make them a potential source of reducing and stabilizing agents for the synthesis of metal nanoparticles. This study investigates the use of SCG extracts as a green strategy to produce silver nanoparticles (AgNPs). SCG extracts were obtained using aqueous ethanol as the solvent and then contacted with a silver nitrate solution under the selected conditions. A central composite design coupled with response surface methodology was used to evaluate the effects of solvent composition (C = 30–70% v/v), silver-to-phenolic ratio (R = 3–7 mol/mol), temperature (T = 25–55 °C) and pH (10–12) on the production of AgNPs. Characterization of AgNPs by DLS, TEM and XRD techniques showed that they were highly crystalline with a narrow size distribution. Under optimal reaction conditions, AgNPs with an average size of about 10 nm and a zeta potential of −30.5 to −20.7 mV were obtained. Overall, the results of this study indicate that SCGs are a promising material for the green synthesis of small-sized and stable AgNPs.
Collapse
|
23
|
Functionalized Microbial Consortia with Silver-Doped Hydroxyapatite (Ag@HAp) Nanostructures for Removal of RO84 from Industrial Effluent. CRYSTALS 2022. [DOI: 10.3390/cryst12070970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Considering that freshwater is a necessity for human life, sewage treatment has been a serious concern for an increasing number of scientists and academics in recent years. To clean industrial effluents, innovative catalysts with good adsorption, chemical stability, and physicochemical properties have been constructed. Here, a prospective microbial consortium was extracted from the wastewater and used as a low-cost catalyst that was functionalized with silver and silver-doped hydroxyapatite (Ag@HAp) nanostructures made using a sonochemical approach. The structural, optical, and crystal phases of Ag and Ag-doped hydroxyapatite (Ag@HAp) nanostructures were studied using ultraviolet-visible (UV-Vis), Fourier transfer infrared spectroscopy (FTIR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and high-resolution transmission electron microscopy (HRTEM) techniques. The degradation action of functionalized microbial consortia was examined against reactive orange 84 (RO84) organic discharge. Excellent efficiency for the removal of industrial effluents was found for the Ag NPs and Ag-doped hydroxyapatite (Ag@HAp) loaded with microbial consortia. A maximum of 95% of the decolorization properties of the RO84 dye were obtained in the case of microbial consortia with Ag and Ag@HAp, which was better than the consortia alone (80.32% for 5 ppm and 69.54% for 20 ppm). The consortia/Ag showed 93.34% for 5 ppm and 85.43% for 20 ppm, while was higher for consortia/Ag@HAp (95.34 and 88.43%). The use of these surface-modified nanocatalysts for wastewater treatment and waste effluents discharged from laboratories, the chemical industry, and other sources could be expanded.
Collapse
|
24
|
Lung Models to Evaluate Silver Nanoparticles’ Toxicity and Their Impact on Human Health. NANOMATERIALS 2022; 12:nano12132316. [PMID: 35808152 PMCID: PMC9268743 DOI: 10.3390/nano12132316] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 12/17/2022]
Abstract
Nanomaterials (NMs) solve specific problems with remarkable results in several industrial and scientific areas. Among NMs, silver nanoparticles (AgNPs) have been extensively employed as drug carriers, medical diagnostics, energy harvesting devices, sensors, lubricants, and bioremediation. Notably, they have shown excellent antimicrobial, anticancer, and antiviral properties in the biomedical field. The literature analysis shows a selective cytotoxic effect on cancer cells compared to healthy cells, making its potential application in cancer treatment evident, increasing the need to study the potential risk of their use to environmental and human health. A large battery of toxicity models, both in vitro and in vivo, have been established to predict the harmful effects of incorporating AgNPs in these numerous areas or those produced due to involuntary exposure. However, these models often report contradictory results due to their lack of standardization, generating controversy and slowing the advances in nanotoxicology research, fundamentally by generalizing the biological response produced by the AgNP formulations. This review summarizes the last ten years’ reports concerning AgNPs’ toxicity in cellular respiratory system models (e.g., mono-culture models, co-cultures, 3D cultures, ex vivo and in vivo). In turn, more complex cellular models represent in a better way the physical and chemical barriers of the body; however, results should be used carefully so as not to be misleading. The main objective of this work is to highlight current models with the highest physiological relevance, identifying the opportunity areas of lung nanotoxicology and contributing to the establishment and strengthening of specific regulations regarding health and the environment.
Collapse
|
25
|
Karageorgou D, Zygouri P, Tsakiridis T, Hammami MA, Chalmpes N, Subrati M, Sainis I, Spyrou K, Katapodis P, Gournis D, Stamatis H. Green Synthesis and Characterization of Silver Nanoparticles with High Antibacterial Activity Using Cell Extracts of Cyanobacterium Pseudanabaena/Limnothrix sp. NANOMATERIALS 2022; 12:nano12132296. [PMID: 35808131 PMCID: PMC9268701 DOI: 10.3390/nano12132296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 12/10/2022]
Abstract
In this work, we demonstrated the ability of the cyanobacterium Pseudanabaena/Limnothrix sp. to produce ultra-small silver nanoparticlesin the forms of metallic silver (Ag0) and silver oxides (AgxOy) via a facile green synthetic process. The biological compounds in the cyanobacterial cellular extract acted both as reducing agents for silver ions and functional stabilizing agents for the silver nanoparticles. Furthermore, the antibacterical activity of the as-synthesized nanoparticles against Gram-negative Escherichia coli and Gram-positive Corynebacterium glutamicum bacterial cells was evaluated. The experimental results revealed a remarkable bactericidal activity of the nanoparticles that was both time-dependent and dose-dependent. In addition to their excellent bactericidal properties, the developed nanoparticles can be used as nanosupports in various environmental, biological, and medical applications.
Collapse
Affiliation(s)
- Dimitra Karageorgou
- Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece; (D.K.); (T.T.); (H.S.)
| | - Panagiota Zygouri
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (P.Z.); (N.C.); (M.S.)
| | - Theofylaktos Tsakiridis
- Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece; (D.K.); (T.T.); (H.S.)
| | - Mohamed Amen Hammami
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853, USA;
| | - Nikolaos Chalmpes
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (P.Z.); (N.C.); (M.S.)
| | - Mohammed Subrati
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (P.Z.); (N.C.); (M.S.)
| | - Ioannis Sainis
- Cancer Biobank Center, University of Ioannina, 45110 Ioannina, Greece;
| | - Konstantinos Spyrou
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (P.Z.); (N.C.); (M.S.)
- Correspondence: (K.S.); (P.K.); (D.G.); Tel.: +30-265-100-7370 (K.S.); +30-265-100-7212 (P.K.); +30-265-100-7141 (D.G.)
| | - Petros Katapodis
- Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece; (D.K.); (T.T.); (H.S.)
- Correspondence: (K.S.); (P.K.); (D.G.); Tel.: +30-265-100-7370 (K.S.); +30-265-100-7212 (P.K.); +30-265-100-7141 (D.G.)
| | - Dimitrios Gournis
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece; (P.Z.); (N.C.); (M.S.)
- Correspondence: (K.S.); (P.K.); (D.G.); Tel.: +30-265-100-7370 (K.S.); +30-265-100-7212 (P.K.); +30-265-100-7141 (D.G.)
| | - Haralambos Stamatis
- Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece; (D.K.); (T.T.); (H.S.)
| |
Collapse
|
26
|
Wu Y, Rakotoarisoa M, Angelov B, Deng Y, Angelova A. Self-Assembled Nanoscale Materials for Neuronal Regeneration: A Focus on BDNF Protein and Nucleic Acid Biotherapeutic Delivery. NANOMATERIALS 2022; 12:nano12132267. [PMID: 35808102 PMCID: PMC9268293 DOI: 10.3390/nano12132267] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/26/2022] [Accepted: 06/27/2022] [Indexed: 02/04/2023]
Abstract
Enabling challenging applications of nanomedicine and precision medicine in the treatment of neurodegenerative disorders requires deeper investigations of nanocarrier-mediated biomolecular delivery for neuronal targeting and recovery. The successful use of macromolecular biotherapeutics (recombinant growth factors, antibodies, enzymes, synthetic peptides, cell-penetrating peptide–drug conjugates, and RNAi sequences) in clinical developments for neuronal regeneration should benefit from the recent strategies for enhancement of their bioavailability. We highlight the advances in the development of nanoscale materials for drug delivery in neurodegenerative disorders. The emphasis is placed on nanoformulations for the delivery of brain-derived neurotrophic factor (BDNF) using different types of lipidic nanocarriers (liposomes, liquid crystalline or solid lipid nanoparticles) and polymer-based scaffolds, nanofibers and hydrogels. Self-assembled soft-matter nanoscale materials show favorable neuroprotective characteristics, safety, and efficacy profiles in drug delivery to the central and peripheral nervous systems. The advances summarized here indicate that neuroprotective biomolecule-loaded nanoparticles and injectable hydrogels can improve neuronal survival and reduce tissue injury. Certain recently reported neuronal dysfunctions in long-COVID-19 survivors represent early manifestations of neurodegenerative pathologies. Therefore, BDNF delivery systems may also help in prospective studies on recovery from long-term COVID-19 neurological complications and be considered as promising systems for personalized treatment of neuronal dysfunctions and prevention or retarding of neurodegenerative disorders.
Collapse
Affiliation(s)
- Yu Wu
- CNRS, Institut Galien Paris-Saclay, Université Paris-Saclay, F-92290 Châtenay-Malabry, France; (Y.W.); (M.R.)
| | - Miora Rakotoarisoa
- CNRS, Institut Galien Paris-Saclay, Université Paris-Saclay, F-92290 Châtenay-Malabry, France; (Y.W.); (M.R.)
| | - Borislav Angelov
- Institute of Physics, ELI Beamlines, Academy of Sciences of the Czech Republic, Na Slovance 2, CZ-18221 Prague, Czech Republic;
| | - Yuru Deng
- Wenzhou Institute, University of Chinese Academy of Sciences, No. 1, Jinlian Road, Longwan District, Wenzhou 325001, China;
| | - Angelina Angelova
- CNRS, Institut Galien Paris-Saclay, Université Paris-Saclay, F-92290 Châtenay-Malabry, France; (Y.W.); (M.R.)
- Correspondence:
| |
Collapse
|
27
|
Szewczyk OK, Roszczenko P, Czarnomysy R, Bielawska A, Bielawski K. An Overview of the Importance of Transition-Metal Nanoparticles in Cancer Research. Int J Mol Sci 2022; 23:6688. [PMID: 35743130 PMCID: PMC9223356 DOI: 10.3390/ijms23126688] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/08/2022] [Accepted: 06/13/2022] [Indexed: 12/12/2022] Open
Abstract
Several authorities have implied that nanotechnology has a significant future in the development of advanced cancer therapies. Nanotechnology makes it possible to simultaneously administer drug combinations and engage the immune system to fight cancer. Nanoparticles can locate metastases in different organs and deliver medications to them. Using them allows for the effective reduction of tumors with minimal toxicity to healthy tissue. Transition-metal nanoparticles, through Fenton-type or Haber-Weiss-type reactions, generate reactive oxygen species. Through oxidative stress, the particles induce cell death via different pathways. The main limitation of the particles is their toxicity. Certain factors can control toxicity, such as route of administration, size, aggregation state, surface functionalization, or oxidation state. In this review, we attempt to discuss the effects and toxicity of transition-metal nanoparticles.
Collapse
Affiliation(s)
- Olga Klaudia Szewczyk
- Department of Synthesis and Technology of Drugs, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland; (R.C.); (K.B.)
| | - Piotr Roszczenko
- Department of Biotechnology, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland; (P.R.); (A.B.)
| | - Robert Czarnomysy
- Department of Synthesis and Technology of Drugs, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland; (R.C.); (K.B.)
| | - Anna Bielawska
- Department of Biotechnology, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland; (P.R.); (A.B.)
| | - Krzysztof Bielawski
- Department of Synthesis and Technology of Drugs, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland; (R.C.); (K.B.)
| |
Collapse
|
28
|
Analysis of Silver Nanoparticles for the Treatment and Prevention of Nucleopolyhedrovirus Affecting Bombyx mori. Int J Mol Sci 2022; 23:ijms23116325. [PMID: 35683003 PMCID: PMC9181153 DOI: 10.3390/ijms23116325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/28/2022] [Accepted: 06/02/2022] [Indexed: 12/04/2022] Open
Abstract
Bombyx mori nucleopolyhedrovirus (BmNPV) causes major economic losses in sericulture. A number of agents have been employed to treat viral diseases. Silver nanoparticles (AgNPs) have wide applications in biomedical fields due to their unique properties. The anti-BmNPV effect of AgNPs has been evaluated, however, there are insufficient studies concerning its toxicity to other organisms and the environment. We chemically synthesized biocompatible BSA-AgNPs with a diameter range of 2–4 nm and characterized their physical properties. The toxicity of AgNPs towards cells and larvae with different concentrations was examined; the results indicated a biofriendly effect on cells and larvae within specific concentration ranges. The SEM observation of the surface of BmNPV after treatment with AgNPs suggested that AgNPs could destroy the polyhedral structure, and the same result was obtained by Coomassie blue staining. Further assays confirmed the weakened virulence of AgNPs-treated BmNPV toward cells and larvae. AgNPs also could effectively inhibit the replication of BmNPV in infected cells and larvae. In summary, our research provides valuable data for the further development of AgNPs as an antiviral drug for sericulture.
Collapse
|
29
|
Nanoparticles of Bioactive Metals/Metal Oxides and Their Nanocomposites with Antibacterial Drugs for Biomedical Applications. MATERIALS 2022; 15:ma15103602. [PMID: 35629629 PMCID: PMC9147160 DOI: 10.3390/ma15103602] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/15/2022] [Accepted: 05/16/2022] [Indexed: 02/04/2023]
Abstract
The increasing appearance of new strains of microorganisms resistant to the action of existing antibiotics is a modern problem that requires urgent decision. A promising potential solution is the use of nanoparticles of bioactive metals and their oxides as new antibacterial agents, since they are capable of affecting pathogenic microorganisms by mechanisms different from the mechanisms of action of antibiotics. Inorganic nanoparticles possess a wide spectrum of antibacterial activity. These particles can be easily conjugated with drug molecules and become carriers in targeted drug-delivery systems. This paper discusses the benefits and prospects of the application of nanoparticles from metals and metal oxides and their nanocomposites with antibacterial drugs.
Collapse
|
30
|
Al Mutairi JF, Al-Otibi F, Alhajri HM, Alharbi RI, Alarifi S, Alterary SS. Antimicrobial Activity of Green Silver Nanoparticles Synthesized by Different Extracts from the Leaves of Saudi Palm Tree ( Phoenix Dactylifera L.). MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103113. [PMID: 35630588 PMCID: PMC9143906 DOI: 10.3390/molecules27103113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 11/16/2022]
Abstract
The Arabian desert is rich in different species of medicinal plants, which approved variable antimicrobial activities. Phoenix dactylifera L. is one of the medical trees rich in phenolic acids and flavonoids. The current study aimed to assess the antibacterial and antifungal properties of the silver nanoparticles (AgNPs) green-synthesized by two preparations (ethanolic and water extracts) from palm leaves. The characteristics of the produced AgNPs were tested by UV-visible spectroscopy and Transmitted Electron Microscopy (TEM). The antifungal activity of Phoenix dactylifera L. was tested against different species of Candida. Moreover, its antibacterial activity was evaluated against two Gram-positive and two Gram-negative strains. The results showed that AgNPs had a spherical larger shape than the crude extracts. AgNPs, from both preparations, had significant antimicrobial effects. The water extract had slightly higher antimicrobial activity than the ethanolic extract, as it induced more inhibitory effects against all species. That suggests the possible use of palm leaf extracts against different pathogenic bacteria and fungi instead of chemical compounds, which had economic and health benefits.
Collapse
Affiliation(s)
- Jihan F. Al Mutairi
- Chemistry Department, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; (J.F.A.M.); (H.M.A.); (S.S.A.)
| | - Fatimah Al-Otibi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia;
- Correspondence: ; Tel.: +966-805-5970
| | - Hassna M. Alhajri
- Chemistry Department, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; (J.F.A.M.); (H.M.A.); (S.S.A.)
| | - Raedah I. Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia;
| | - Saud Alarifi
- Zoology Department, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia;
| | - Seham S. Alterary
- Chemistry Department, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; (J.F.A.M.); (H.M.A.); (S.S.A.)
| |
Collapse
|
31
|
Franzolin MR, Courrol DDS, de Souza Barreto S, Courrol LC. Eugenia uniflora L. Silver and Gold Nanoparticle Synthesis, Characterization, and Evaluation of the Photoreduction Process in Antimicrobial Activities. Microorganisms 2022; 10:microorganisms10050999. [PMID: 35630442 PMCID: PMC9147378 DOI: 10.3390/microorganisms10050999] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/02/2022] [Accepted: 05/05/2022] [Indexed: 02/01/2023] Open
Abstract
Eugenia uniflora linnaeus, known as Brazilian cherry, is widely distributed in Brazil, Argentina, Uruguay, and Paraguay. E. uniflora L. extracts contain phenolic compounds, such as flavonoids, tannins, triterpenes, and sesquiterpenes. The antimicrobial action of essential oils has been attributed to their compositions of bioactive compounds, such as sesquiterpenes. In this paper, the fruit extract of E. uniflora was used to synthesize silver and gold nanoparticles. The nanoparticles were characterized by UV–Vis, transmission electron microscopy, elemental analysis, FTIR, and Zeta potential measurement. The silver and gold nanoparticles prepared with fruit extracts presented sizes of ~32 nm and 11 nm (diameter), respectively, and Zeta potentials of −22 mV and −14 mV. The antimicrobial tests were performed with Gram-negative and Gram-positive bacteria and Candida albicans. The growth inhibition of EuAgNPs prepared with and without photoreduction showed the important functional groups in the antimicrobial activity.
Collapse
Affiliation(s)
- Marcia Regina Franzolin
- Laboratório de Bacteriologia, Instituto Butantan, São Paulo 05503-900, Brazil; (M.R.F.); (D.d.S.C.); (S.d.S.B.)
| | - Daniella dos Santos Courrol
- Laboratório de Bacteriologia, Instituto Butantan, São Paulo 05503-900, Brazil; (M.R.F.); (D.d.S.C.); (S.d.S.B.)
| | - Susana de Souza Barreto
- Laboratório de Bacteriologia, Instituto Butantan, São Paulo 05503-900, Brazil; (M.R.F.); (D.d.S.C.); (S.d.S.B.)
| | - Lilia Coronato Courrol
- Departamento de Física, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema 09972-270, Brazil
- Correspondence:
| |
Collapse
|
32
|
Kaur M, Kumar V, Ghfar AA, Pandey S. A Green Approach for the Synthesis of Silver Nanoparticle-Embedded Chitosan Bionanocomposite as a Potential Device for the Sustained Release of the Itraconazole Drug and Its Antibacterial Characteristics. Polymers (Basel) 2022; 14:polym14091911. [PMID: 35567081 PMCID: PMC9104402 DOI: 10.3390/polym14091911] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 12/04/2022] Open
Abstract
The present research work intended to demonstrate the green synthesis of silver nanoparticles (AgNPs) using the plant extract Saccharum officinarum, and then the development of chitosan–silver (CH-Ag) bionanocomposite. The synthesized AgNPs were characterized using UV spectroscopy, Fourier transform infrared (FTIR), and transmission electron microscopy (TEM). The maximum absorption spectrum peak was observed at 420 nm, revealing the formation of AgNPs by the stem extract of S. officinarum. The AgNPs sizes were in the range of 10–50 nm. Itraconazole is an antifungal that is used as a novel drug to study its release through synthesized bionanocomposite. Different kinetic models, such as zero order, first order, Korsmeyer–Peppas, Hixson–Crowell and Higuchi, were used to study the drug release profile from the synthesized CH-Ag bionanocomposite. The first-order kinetic model showed the best fit for the drug release with the maximum regression coefficient value. The antibacterial activity of the synthesized CH-Ag bionanocomposite was examined against Bacillus cereus, Staphylococcus, and Escherichia coli, and it was shown to be efficient against these strains.
Collapse
Affiliation(s)
- Manpreet Kaur
- Department of Biotechnology, CT Institute of Pharmaceutical Sciences, Shahpur Campus, Jalandhar 144008, Punjab, India;
| | - Vaneet Kumar
- Department of Applied Sciences, CT Institute of Engineering, Management and Technology, Shahpur Campus, Jalandhar 144623, Punjab, India;
| | - Ayman A. Ghfar
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Sadanand Pandey
- Department of Chemistry, College of Natural Sciences, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Gyeongbuk, Korea
- Correspondence: (S.); (S.P.)
| |
Collapse
|
33
|
Evaluating the Effectiveness of Hospital Antiseptics on Multidrug-Resistant Acinetobacter baumannii: Understanding the Relationship between Microbicide and Antibiotic Resistance. Antibiotics (Basel) 2022; 11:antibiotics11050614. [PMID: 35625258 PMCID: PMC9137960 DOI: 10.3390/antibiotics11050614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/28/2022] [Accepted: 04/30/2022] [Indexed: 12/22/2022] Open
Abstract
Acinetobacter baumannii hospital infections are difficult to treat due to the rapid emergence of multidrug-resistant (MDR) strains. In addition, A. baumannii can survive in numerous adverse environments, including in the presence of common hospital antiseptics. We hypothesized that in addition to accumulating drug resistance determinants, MDR A. baumannii strains also accumulate mutations that allow for greater microbicide tolerance when compared to pan-susceptible (PS) strains. To test this hypothesis, we compared the survival of five MDR and five PS patient isolates when exposed to bleach, ethanol, quaternary ammonium compounds, chlorhexidine gluconate, and povidone. We evaluated bacteria in a free-living planktonic state and under biofilm conditions. Each disinfectant eliminated 99.9% of planktonic bacteria, but this was not the case for bacterial biofilms. Next, we characterized strains for the presence of the known microbicide-resistance genes cepA, qacEΔ1, qacE, and qacA. MDR strains did not survive more than PS strains in the presence of microbicides, but microbicide-resistant strains had higher survival rates under some conditions. Interestingly, the PS strains were more likely to possess microbicide-resistance genes. Microbicide resistance remains an important topic in healthcare and may be independent of antimicrobial resistance. Hospitals should consider stricter isolation precautions that take pan-susceptible strains into account.
Collapse
|
34
|
Portell-Buj E, González-Criollo C, López-Gavín A, Fernández-Pittol M, Busquets MA, Estelrich J, Garrigó M, Rubio M, Tudó G, Gonzalez-Martin J. Activity of Antibiotics and Potential Antibiofilm Agents against Biofilm-Producing Mycobacterium avium-intracellulare Complex Causing Chronic Pulmonary Infections. Antibiotics (Basel) 2022; 11:antibiotics11050589. [PMID: 35625233 PMCID: PMC9137467 DOI: 10.3390/antibiotics11050589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/23/2022] [Accepted: 04/26/2022] [Indexed: 02/04/2023] Open
Abstract
Nontuberculous mycobacteria (NTM) cause lung infections in patients with underlying pulmonary diseases (PD). The Mycobacteriumavium-intracellulare complex (MAC) is the most frequently involved NTM. The MAC-PD treatment is based on the administration of several antibiotics for long periods of time. Nonetheless, treatment outcomes remain very poor. Among the factors involved is the ability of MAC isolates to form biofilm. The aim of the study was to assess the in vitro activity of different antibiotics and potential antibiofilm agents (PAAs) against MAC biofilm. Four antibiotics and six PAAs, alone and/or in combination, were tested against planktonic forms of 11 MAC clinical isolates. Biofilm was produced after 4 weeks of incubation and analyzed with the crystal violet assay. The antibiotics and PAAs were tested by measuring the absorbance (minimum biofilm inhibition concentrations, MBICs) and by performing subcultures (minimum biofilm eradication concentrations, MBECs). The clarithromycin/amikacin and clarithromycin/ethambutol combinations were synergistic, decreasing the MBECs values compared to the individual antibiotics. The amikacin/moxifloxacin combination showed indifference. The MBIC values decreased significantly when PAAs were added to the antibiotic combinations. These results suggest that antibiotic combinations should be further studied to establish their antibiofilm activity. Moreover, PAAs could act against the biofilm matrix, facilitating the activity of antibiotics.
Collapse
Affiliation(s)
- Elena Portell-Buj
- Departament de Fonaments Clínics, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, c/Casanova 143, 08036 Barcelona, Spain; (E.P.-B.); (C.G.-C.); (A.L.-G.); (M.F.-P.); (G.T.)
- ISGlobal Barcelona, Institute for Global Health, c/Rosselló 132, 08036 Barcelona, Spain
- Servei de Microbiologia, CDB, Hospital Clínic de Barcelona, c/Villarroel 170, 08036 Barcelona, Spain
| | - Cecibel González-Criollo
- Departament de Fonaments Clínics, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, c/Casanova 143, 08036 Barcelona, Spain; (E.P.-B.); (C.G.-C.); (A.L.-G.); (M.F.-P.); (G.T.)
- Unidad de Investigación en Biomedicina, Zurita & Zurita Laboratorios, Quito 170104, Ecuador
| | - Alexandre López-Gavín
- Departament de Fonaments Clínics, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, c/Casanova 143, 08036 Barcelona, Spain; (E.P.-B.); (C.G.-C.); (A.L.-G.); (M.F.-P.); (G.T.)
- ISGlobal Barcelona, Institute for Global Health, c/Rosselló 132, 08036 Barcelona, Spain
- Servei de Microbiologia, CDB, Hospital Clínic de Barcelona, c/Villarroel 170, 08036 Barcelona, Spain
| | - Mariana Fernández-Pittol
- Departament de Fonaments Clínics, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, c/Casanova 143, 08036 Barcelona, Spain; (E.P.-B.); (C.G.-C.); (A.L.-G.); (M.F.-P.); (G.T.)
- ISGlobal Barcelona, Institute for Global Health, c/Rosselló 132, 08036 Barcelona, Spain
- Servei de Microbiologia, CDB, Hospital Clínic de Barcelona, c/Villarroel 170, 08036 Barcelona, Spain
| | - Maria Antònia Busquets
- Department de Farmàcia, Tecnologia Farmacèutica i Físicoquímica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona, Av. Joan XXIII, 27-31, 08028 Barcelona, Spain; (M.A.B.); (J.E.)
- Institut de Nanociència i Nanotecnologia, IN2UB, Facultat de Química, Av. Diagonal 645, 08028 Barcelona, Spain
| | - Joan Estelrich
- Department de Farmàcia, Tecnologia Farmacèutica i Físicoquímica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona, Av. Joan XXIII, 27-31, 08028 Barcelona, Spain; (M.A.B.); (J.E.)
- Institut de Nanociència i Nanotecnologia, IN2UB, Facultat de Química, Av. Diagonal 645, 08028 Barcelona, Spain
| | - Montserrat Garrigó
- Servei de Microbiologia, Fundació de Gestió de l’Hospital de la Santa Creu i Sant Pau, c/Sant Quintí 89, 08026 Barcelona, Spain;
- Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau), c/Sant Quintí 77, 08041 Barcelona, Spain;
| | - Marc Rubio
- Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau), c/Sant Quintí 77, 08041 Barcelona, Spain;
| | - Griselda Tudó
- Departament de Fonaments Clínics, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, c/Casanova 143, 08036 Barcelona, Spain; (E.P.-B.); (C.G.-C.); (A.L.-G.); (M.F.-P.); (G.T.)
- ISGlobal Barcelona, Institute for Global Health, c/Rosselló 132, 08036 Barcelona, Spain
- Servei de Microbiologia, CDB, Hospital Clínic de Barcelona, c/Villarroel 170, 08036 Barcelona, Spain
| | - Julian Gonzalez-Martin
- Departament de Fonaments Clínics, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, c/Casanova 143, 08036 Barcelona, Spain; (E.P.-B.); (C.G.-C.); (A.L.-G.); (M.F.-P.); (G.T.)
- ISGlobal Barcelona, Institute for Global Health, c/Rosselló 132, 08036 Barcelona, Spain
- Servei de Microbiologia, CDB, Hospital Clínic de Barcelona, c/Villarroel 170, 08036 Barcelona, Spain
- CIBER of Infectiuos Diseases (CIBERINFEC), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence:
| |
Collapse
|
35
|
Caraway HE, Lau JZ, Maron B, Oh MW, Belo Y, Brill A, Malach E, Ismail N, Hayouka Z, Lau GW. Antimicrobial Random Peptide Mixtures Eradicate Acinetobacter baumannii Biofilms and Inhibit Mouse Models of Infection. Antibiotics (Basel) 2022; 11:antibiotics11030413. [PMID: 35326876 PMCID: PMC8944503 DOI: 10.3390/antibiotics11030413] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/07/2022] [Accepted: 03/16/2022] [Indexed: 12/11/2022] Open
Abstract
Antibiotic resistance is one of the greatest crises in human medicine. Increased incidents of antibiotic resistance are linked to clinical overuse and overreliance on antibiotics. Among the ESKAPE pathogens, Acinetobacter baumannii, especially carbapenem-resistant isolates, has emerged as a significant threat in the context of blood, urinary tract, lung, and wound infections. Therefore, new approaches that limit the emergence of antibiotic resistant A. baumannii are urgently needed. Recently, we have shown that random peptide mixtures (RPMs) are an attractive alternative class of drugs to antibiotics with strong safety and pharmacokinetic profiles. RPMs are antimicrobial peptide mixtures produced by incorporating two amino acids at each coupling step, rendering them extremely diverse but still defined in their overall composition, chain length, and stereochemistry. The extreme diversity of RPMs may prevent bacteria from evolving resistance rapidly. Here, we demonstrated that RPMs rapidly and efficiently kill different strains of A. baumannii, inhibit biofilm formation, and disrupt mature biofilms. Importantly, RPMs attenuated bacterial burden in mouse models of acute pneumonia and soft tissue infection and significantly reduced mouse mortality during sepsis. Collectively, our results demonstrate RPMs have the potential to be used as powerful therapeutics against antibiotic-resistant A. baumannii.
Collapse
Affiliation(s)
- Hannah E. Caraway
- Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA; (H.E.C.); (J.Z.L.); (M.W.O.)
| | - Jonathan Z. Lau
- Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA; (H.E.C.); (J.Z.L.); (M.W.O.)
| | - Bar Maron
- Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel; (B.M.); (Y.B.); (A.B.); (E.M.)
| | - Myung Whan Oh
- Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA; (H.E.C.); (J.Z.L.); (M.W.O.)
| | - Yael Belo
- Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel; (B.M.); (Y.B.); (A.B.); (E.M.)
| | - Aya Brill
- Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel; (B.M.); (Y.B.); (A.B.); (E.M.)
| | - Einav Malach
- Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel; (B.M.); (Y.B.); (A.B.); (E.M.)
| | - Nahed Ismail
- Department of Pathology, College of Medicine, University of Illinois at Chicago, 840 South Wood Street, Chicago, IL 60612, USA;
| | - Zvi Hayouka
- Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel; (B.M.); (Y.B.); (A.B.); (E.M.)
- Correspondence: (Z.H.); (G.W.L.)
| | - Gee W. Lau
- Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA; (H.E.C.); (J.Z.L.); (M.W.O.)
- Correspondence: (Z.H.); (G.W.L.)
| |
Collapse
|
36
|
Molacek J, Treska V, Houdek K, Opatrný V, Certik B, Baxa J. Use of a Silver-Impregnated Vascular Graft: Single-Center Experience. Antibiotics (Basel) 2022; 11:386. [PMID: 35326849 PMCID: PMC8944627 DOI: 10.3390/antibiotics11030386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/27/2022] [Accepted: 03/04/2022] [Indexed: 12/10/2022] Open
Abstract
INTRODUCTION Vascular graft infection is a life threatening situation with significant morbidity and mortality. Bacterial graft infection can lead to false aneurysms, bleeding and sepsis. There are a lot of risky situations where grafts can become infected. It is therefore highly desirable to have a vascular graft that is resistant to infection. In this retrospective clinical study, a silver-impregnated vascular graft was evaluated in various indications. METHODS Our study included a total of 71 patients who received a silver-impregnated vascular graft during the period from 2013 to 2018. Patients had an aortoiliac localization of vascular graft in 61 cases (86%), and a peripheral localization on the lower limbs in 10 cases (14%). Indications for the use of these special vascular grafts were trophic lesions or gangrene in the lower limbs in 24 cases (34%), suspicious mycotic abdominal aortic aneurysm (mAAA) in 4 cases (5.5%), salmonela aortitis or aneurysms in 4 cases (5.5%), infection of the previous vascular graft in 11 cases (15.5%), other infections in 12 cases (17%), AAA rupture in 10 cases (14%) and other reasons (pre-transplant condition, multiple trauma, graft-enteric fistula) in 6 cases (8.5%). Thirty-day mortality, morbidity, the need for reintervention and amputation, primary and secondary graft patency, and finally the presence of a proven vascular graft infection were evaluated. RESULTS The 30-day mortality was 19.7%, and morbidity was 42.2%. The primary patency of the vascular graft was 91.5%. Reoperation was necessary in 10 cases (14%) and amputation was necessary in 10 cases (14%). The median length of hospital stay was 13 days and the mean follow-up period was 48 ± 9 months. During the follow-up period, six patients (8.5%) died from reasons unrelated to surgery or without any relation to the vascular graft. Secondary patency after one year was 88%. Infection of the silver graft was observed in three patients (4.2%). CONCLUSIONS Based on our results, the silver graft is a very suitable alternative for solving infectious, or potentially infectious, situations in vascular surgery. In particular, in urgent or acute cases, a silver graft is often the only option.
Collapse
Affiliation(s)
- Jiri Molacek
- Vascular Surgery Department, University Hospital in Pilsen, Faculty of Medicine in Pilsen, Charles University, Husova 3, 301 00 Plzeň, Czech Republic; (V.T.); (K.H.); (V.O.); (B.C.)
| | - Vladislav Treska
- Vascular Surgery Department, University Hospital in Pilsen, Faculty of Medicine in Pilsen, Charles University, Husova 3, 301 00 Plzeň, Czech Republic; (V.T.); (K.H.); (V.O.); (B.C.)
| | - Karel Houdek
- Vascular Surgery Department, University Hospital in Pilsen, Faculty of Medicine in Pilsen, Charles University, Husova 3, 301 00 Plzeň, Czech Republic; (V.T.); (K.H.); (V.O.); (B.C.)
| | - Václav Opatrný
- Vascular Surgery Department, University Hospital in Pilsen, Faculty of Medicine in Pilsen, Charles University, Husova 3, 301 00 Plzeň, Czech Republic; (V.T.); (K.H.); (V.O.); (B.C.)
| | - Bohuslav Certik
- Vascular Surgery Department, University Hospital in Pilsen, Faculty of Medicine in Pilsen, Charles University, Husova 3, 301 00 Plzeň, Czech Republic; (V.T.); (K.H.); (V.O.); (B.C.)
| | - Jan Baxa
- Department of Imagine Methods, University Hospital in Pilsen, Faculty of Medicine in Pilsen, Charles University, Husova 3, 301 00 Plzeň, Czech Republic;
| |
Collapse
|
37
|
Hoang NH, Le Thanh T, Thepbandit W, Treekoon J, Saengchan C, Sangpueak R, Papathoti NK, Kamkaew A, Buensanteai N. Efficacy of Chitosan Nanoparticle Loaded-Salicylic Acid and -Silver on Management of Cassava Leaf Spot Disease. Polymers (Basel) 2022; 14:polym14040660. [PMID: 35215572 PMCID: PMC8877689 DOI: 10.3390/polym14040660] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 12/12/2022] Open
Abstract
Leaf spot is one of the most important cassava diseases. Nanotechnology can be applied to control diseases and improve plant growth. This study was performed to prepare chitosan (CS) nanoparticle (NP)-loaded salicylic acid (SA) or silver (Ag) by the ionic gelation method, and to evaluate their effectiveness on reducing leaf spot disease and enhancing the growth of cassava plants. The CS (0.4 or 0.5%) and Pentasodium triphosphate (0.2 or 0.5%) were mixed with SA varying at 0.05, 0.1, or 0.2% or silver nitrate varying at 1, 2, or 3 mM to prepare three formulations of CS-NP-loaded SA named N1, N2, and N3 or CS-NP-loaded Ag named N4, N5, and N6. The results showed that the six formulations were not toxic to cassava leaves up to 800 ppm. The CS-NP-loaded SA (N3) and CS-NP-loaded Ag (N6) were more effective than the remaining formulations in reducing the disease severity and the disease index of leaf spot. Furthermore, N3 at 400 ppm and N6 at 200, 400, and 800 ppm could reduce disease severity (68.9–73.6% or 37.0–37.7%, depending on the time of treatment and the pathogen density) and enhance plant growth more than or equal to commercial fungicide or nano-fungicide products under net-house conditions. The study indicates the potential to use CS-NP-loaded SA or Ag as elicitors to manage cassava leaf spot disease.
Collapse
Affiliation(s)
- Nguyen Huy Hoang
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (N.H.H.); (W.T.); (C.S.); (R.S.); (N.K.P.)
| | - Toan Le Thanh
- Department of Plant Protection, College of Agriculture, Can Tho University, Can Tho 900000, Vietnam;
| | - Wannaporn Thepbandit
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (N.H.H.); (W.T.); (C.S.); (R.S.); (N.K.P.)
| | - Jongjit Treekoon
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (J.T.); (A.K.)
| | - Chanon Saengchan
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (N.H.H.); (W.T.); (C.S.); (R.S.); (N.K.P.)
| | - Rungthip Sangpueak
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (N.H.H.); (W.T.); (C.S.); (R.S.); (N.K.P.)
| | - Narendra Kumar Papathoti
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (N.H.H.); (W.T.); (C.S.); (R.S.); (N.K.P.)
| | - Anyanee Kamkaew
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (J.T.); (A.K.)
| | - Natthiya Buensanteai
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (N.H.H.); (W.T.); (C.S.); (R.S.); (N.K.P.)
- Correspondence:
| |
Collapse
|