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Iqbal S, Rafique MS, Iqbal N, Akhtar S, Anjum AA, Malarvili M. Synergistic effect of Silver-Nanodiamond composite as an efficient antibacterial agent against E. coli and S. aureus. Heliyon 2024; 10:e30500. [PMID: 38765069 PMCID: PMC11101830 DOI: 10.1016/j.heliyon.2024.e30500] [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: 01/23/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/21/2024] Open
Abstract
Bacterial antimicrobial resistance (BAMR) seems to pose the greatest threat to public health, food safety, and agriculture in this century. The development of novel efficient antimicrobial agents to combat bacterial infections has become a global issue. Silver nanoparticles (Ag NPs) appeared as a feasible alternative to antibiotics. However, Ag NPs face cost, toxicity, and aggregation issues which limit their antibacterial activity. This work aims to stabilize Ag NPs with enhanced antimicrobial activity at comparatively lower Ag concentrations to prevent bacterial infections. For this purpose, the Ag core was covered with nanodiamonds (NDs). Ag-NDs composite have been synthesized by microplasma technique. TEM analysis confirmed the presence of both Ag and NDs in the Ag-NDs composite. A particle size (∼19 nm) was reported for Ag-NDs at the highest concentration as compared to Ag NPs (∼3 nm). The conduction band of the diamond acted as an extremely strong reducing agent for Ag NPs. The large surface area of NDs stabilized the Ag NPs. A redshift (∼400 nm-406 nm) in UV-visible spectra of the Ag-NDs composite indicated the formation of bigger-sized Ag NPs after incorporating NDs. XRD and LIBS analysis verified the increase in intensity of Ag-NPs by increasing ND concentration. The presence of functional groups including OH, CH, and Ag/Ag2O was confirmed by FTIR. Bacterial inhibition growth appeared to be a dose-dependent process. The minimum inhibition concentration value of Ag-NDs composite at the highest NDs concentration against E. coli (∼ 0.69 μg/ml) and S. aureus (∼44 μg/ml). This is the first study to report the smallest MIC for E. coli (<1 μg/ml). Ag-ND composites emerged to be more efficient than Ag NPs and preferred to be used against BAMR. The enhanced antibacterial activity of the Ag-NDs composite makes it a potential candidate for antibiotics, food products, and pesticides.
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Affiliation(s)
- Saman Iqbal
- Department of Physics, University of the Punjab, Lahore, Pakistan
| | | | - Nida Iqbal
- Biomedical Engineering Centre, University of Engineering and Technology, Lahore, Kala Shah Kaku (KSK) Campus, Pakistan
| | - Sultan Akhtar
- Department of Biophysics, Institute for Research and Medical Consultations, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
| | - Aftab Ahmad Anjum
- Institute of Microbiology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - M.B. Malarvili
- Department of Biomedical and Health Science Engineering, Faculty of Electrical Engineering, Universiti Teknology Malaysia, Skudai, Johor Darul Takzim, Malaysia
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Yu L, Shen Y, Chen L, Zhang Q, Hu X, Xu Q. Molecularly imprinted ultrasensitive cholesterol photoelectrochemical sensor based on perfluorinated organics functionalization and hollow carbon spheres anchored organic-inorganic perovskite. Biosens Bioelectron 2023; 237:115496. [PMID: 37421798 DOI: 10.1016/j.bios.2023.115496] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/15/2023] [Accepted: 06/23/2023] [Indexed: 07/10/2023]
Abstract
In spite of organic-inorganic perovskite emerging as a novel efficient light-harvesting material owing to their superior optical properties, excitonic properties, and electrical conductivity, the related applications are severely limited for their poor stability and selectivity. Herein, we introduced hollow carbon spheres (HCSs) and 2-(perfluorohexyl) ethyl methacrylate (PFEM) based molecularly imprinted polymers (MIPs) to dual-functionalize CH3NH3PbI3. HCSs can provide perovskite load conditions, passivate perovskite defects, increase carrier transport and effectively improve its hydrophobicity. The perfluorinated organic compound based MIPs film can not only enhance the water and oxygen stability of perovskite, but also endow it specific selectivity. Moreover, it can reduce the photoexcited electron-hole pair recombination and prolong the electron lifetime. Benefiting from the synergistic sensitization of HCSs and MIPs, an ultrasensitive photoelectrochemical platform (MIPs@CH3NH3PbI3@HCSs/ITO) for cholesterol sensing was acquired with a very wide linear range of 5.0 × 10-14-5.0 × 10-8 mol/L and an extremely low detection limit of 2.39 × 10-15 mol/L. The designed PEC sensor exhibited good selectivity and stability, as well as practicality for real sample analysis. The present work extended the development of the high-performance perovskite and showed its broad application prospect for advanced PEC construction.
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Affiliation(s)
- Liangyun Yu
- School of Light Industry, Beijing Technology and Business University, No. 11 Fucheng Road, Haidian District, Beijing, 100048, PR China
| | - Yingzhuo Shen
- College of Chemistry and Engineering, Yangzhou University, Yangzhou, 225002, PR China
| | - Lu Chen
- College of Chemistry and Engineering, Yangzhou University, Yangzhou, 225002, PR China
| | - Qi Zhang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, PR China
| | - Xiaoya Hu
- College of Chemistry and Engineering, Yangzhou University, Yangzhou, 225002, PR China.
| | - Qin Xu
- College of Chemistry and Engineering, Yangzhou University, Yangzhou, 225002, PR China.
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Hublikar LV, Ganachari SV, Patil VB. Phytofabrication of silver nanoparticles using Averrhoa bilimbi leaf extract for anticancer activity. NANOSCALE ADVANCES 2023; 5:4149-4157. [PMID: 37560425 PMCID: PMC10408575 DOI: 10.1039/d3na00313b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/04/2023] [Indexed: 08/11/2023]
Abstract
Averrhoa bilimbi leaf extract was successfully utilized as a reducing agent to synthesize silver nanoparticles (AgNPs) in the laboratory. The phytochemicals in the extract helped keep the silver nanoparticles stable and slowed them down. Different methods, such as UV-visible, FT-IR spectroscopies, XRD, and SEM analyses, were used to characterize the size, shape, and morphology of the nanoparticles, and the results showed that the synthesized nanoparticles were spherical and monodispersed. FTIR spectrum streaching vibrations shown stabillization of silver nanoparticles by green extract. On the other hand, these nanoparticles were labelled as Averrhoa bilimbi (AB) extract silver nanoparticles (AB-AgNPs). The biological synthesis process was proven to enhance the efficacy of the synthesized silver nanoparticles. The effectiveness of AB-AgNPs in fighting cancer could be enhanced specifically for lung cancer (A549 cell line) and breast cancer (MCF7 cell line) by optimizing the necessary conditions. The IC50 value for A549 cells was 49.52 g mL-1, while that for MCF7 cells was 78.40 g mL-1. The effect of AgNPs on both cell lines was assessed using an MTT assay, which showed a dose-dependent cytotoxicity effect. The biosynthesized AB-AgNPs hold great potential as anticancer agents. Their synthesis using Averrhoa bilimbi leaf extract as a reducing agent was proven to be successful, resulting in spherical and monodispersed nanoparticles that exhibit effective cytotoxicity against cancer cells.
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Affiliation(s)
- Leena V Hublikar
- Department of Chemistry, School of Advanced Sciences, KLE Technological University BVB Campus, Vidyanagar Hubballi 580031 India
- Department of Chemistry and Research Center, NMKRV College for Women Jayanagar Bangalore 560011 India
| | - Sharanabasava V Ganachari
- Department of Chemistry, School of Advanced Sciences, KLE Technological University BVB Campus, Vidyanagar Hubballi 580031 India
| | - Veerabhadragouda B Patil
- Institute of Energetic Materials, Faculty of Chemical Technology, University of Pardubice Studentska 95 53210 Czech Republic
- Department of Studies and Research in Materials Science, Gulbarga University Kalaburagi 585106 India
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Saber G, El-Dissouky A, Badie G, Ebrahim S, Shokry A. Capped ZnO quantum dots with a tunable photoluminescence for acetone detection. RSC Adv 2023; 13:16453-16470. [PMID: 37274405 PMCID: PMC10233348 DOI: 10.1039/d3ra00491k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 05/22/2023] [Indexed: 06/06/2023] Open
Abstract
Acetone is a dangerous material that poses a major risk to human health. To protect against its harmful impacts, a fluorescent biosensor 3-aminopropyl triethoxysilane capped ZnO quantum dots (APTES/ZnO QDs) was investigated to detect low concentrations of acetone. Numerous techniques, including Fourier transform infrared (FTIR), energy dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), zeta potential, UV-vis absorption, and photoluminescence (PL), are used to thoroughly verify the successful synthesis of pristine ZnO QDs and APTES/ZnO QDs. The HRTEM micrograph showed that the average size distributions of ZnO QDs and APTES/ZnO QDs were spherical forms of 2.6 and 1.2 nm, respectively. This fluorescent probe dramatically increased its sensitivity toward acetone with a wide linear response range of 0.1-18 mM and a correlation coefficient (R2) of 0.9987. The detection limit of this sensing system for acetone is as low as 42 μM. The superior selectivity of acetone across numerous interfering bioanalytics is confirmed. Reproducibility and repeatability experiments presented relative standard deviations (RSD) of 2.2% and 2.4%, respectively. Finally, this developed sensor was applied successfully for detecting acetone in a diabetic patient's urine samples with a recovery percentage ranging from 97 to 102.7%.
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Affiliation(s)
- Goerget Saber
- Department of Chemistry and Physics, Faculty of Education, Alexandria University El-Shatby 21526 Alexandria Egypt
| | - Ali El-Dissouky
- Department of Chemistry, Faculty of Science, Alexandria University Ibrahimia, P. O. Box 426 Alexandria Egypt
| | - Gamal Badie
- Department of Chemistry and Physics, Faculty of Education, Alexandria University El-Shatby 21526 Alexandria Egypt
| | - Shaker Ebrahim
- Department of Materials Science, Institute of Graduate Studies and Research (IGSR), Alexandria University 163 Horrya Avenue, El-Shatby, P. O. Box 832 Alexandria Egypt
| | - Azza Shokry
- Department of Materials Science, Institute of Graduate Studies and Research (IGSR), Alexandria University 163 Horrya Avenue, El-Shatby, P. O. Box 832 Alexandria Egypt
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Zhang H, Yang DN, Zhu ZJ, Yang FQ. In situ synthesis of silver nanocomposites on paper substrate for the pre-concentration and determination of iron(III) ions. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Sulistyarti H, Utama MM, Fadhila AM, Cahyaningrum A, Murti RJ, Febriyanti A. Green synthesis of silver nanoparticles using Coffea canephora fruit skin extract and its application for mercury detection in face cream samples. ANAL SCI 2023; 39:335-346. [PMID: 36580077 PMCID: PMC9797893 DOI: 10.1007/s44211-022-00237-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 12/09/2022] [Indexed: 12/30/2022]
Abstract
Mercury is one of the most toxic heavy metals causing harmful effects on the human body; meanwhile, mercury is found in some face cream products to give a whitening effect. The upper limit concentration of mercury in skin-lightening products defined by the Food and Drug Administration (FDA) is under one mg/L as Hg2+. A new green analytical spectrophotometric method for mercury analysis has been developed by employing a biological reagent from fruit skin extract of robusta coffee (Coffea canephora) as a bioreductor for silver ions as well as a stabilizer for the AgNPs product. The detection principle of this method is based on the decrease of the color intensity of silver nanoparticles (AgNPs) after the addition of Hg2+ ions due to the re-oxidization of the AgNPs by Hg2+ ions to colorless Ag+ ions. To achieve the most significant sensitivity, linearity of measurement, and validity, the method was optimized toward the volume of AgNPs and reaction time. In this research, the synthesized AgNPs were also characterized by UV-Vis Spectrometry as well as a particle size analyzer (PSA) to determine the size of nanoparticles. The result showed that the optimum conditions were attained at 4 mL AgNPs solution and 3-min reaction resulting in a linear measurement of Hg2+ in the range of 0-15 mg/L with LOD and LOQ of 0.039 and 0.130 mg/L, respectively. This method is quite selective and has been validated by applying it to real face cream samples with satisfactory results supported by average recoveries of close to 100%.
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Affiliation(s)
- Hermin Sulistyarti
- Chemistry Department, Faculty of Mathematics and Natural Sciences, Brawijaya University, Jl. Veteran 1, Malang, 65145, Indonesia. .,LCAMIA: Research Centre for Low Cost and Automated Method and Instrumentation Analysis, Brawijaya University, Malang, 65145, Indonesia.
| | - Muhammad Mashuri Utama
- grid.411744.30000 0004 1759 2014Chemistry Department, Faculty of Mathematics and Natural Sciences, Brawijaya University, Jl. Veteran 1, Malang, 65145 Indonesia
| | - Ari Muchson Fadhila
- grid.411744.30000 0004 1759 2014Chemistry Department, Faculty of Mathematics and Natural Sciences, Brawijaya University, Jl. Veteran 1, Malang, 65145 Indonesia
| | - Anggita Cahyaningrum
- grid.411744.30000 0004 1759 2014Chemistry Department, Faculty of Mathematics and Natural Sciences, Brawijaya University, Jl. Veteran 1, Malang, 65145 Indonesia
| | - Revika Julia Murti
- grid.411744.30000 0004 1759 2014Chemistry Department, Faculty of Mathematics and Natural Sciences, Brawijaya University, Jl. Veteran 1, Malang, 65145 Indonesia
| | - Ayu Febriyanti
- grid.411744.30000 0004 1759 2014Chemistry Department, Faculty of Mathematics and Natural Sciences, Brawijaya University, Jl. Veteran 1, Malang, 65145 Indonesia
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El-Naka MA, El-Dissouky A, Ali GY, Ebrahim S, Shokry A. Fluorescent garlic-capped Ag nanoparticles as dual sensors for the detection of acetone and acrylamide. RSC Adv 2022; 12:34095-34106. [PMID: 36505681 PMCID: PMC9703298 DOI: 10.1039/d2ra06789g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
In order to protect human health from the adverse impacts of acrylamide and acetone, simple analytical processes are required to detect low concentrations of acrylamide and acetone. Dual functional garlic-capped silver nanoparticles (G-Ag NPs) have been used as fluorescent sensors for acrylamide and acetone. This technique depends on the quenching of the photoluminescence (PL) intensity of G-Ag NPs with the interaction of either acrylamide or acetone. This fluorescent probe presented high selectivity toward acrylamide with a wide linear response of 0.01-6 mM with a limit of detection (LOD) of 2.9 μM. Moreover, this probe also acted as a selective and sensitive fluorescent sensor for the detection of acetone in the range of 0.1-17 mM with LOD of 55 μM. The applicability of G-Ag NPs as a proposed sensor for acrylamide was evaluated using a potato chips sample with a recovery percentage of 102.4%. Acetone concentration is also quantified in human urine samples and the recoveries ranged from 98.8 to 101.7%. Repeatability and reproducibility studies for acrylamide and acetone offered relative standard deviation (RSD) of 0.9% and 1.5%, and 0.77% and 1.1%, respectively.
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Affiliation(s)
- Marwa Ahmed El-Naka
- Chemistry Department, Faculty of Science, Alexandria UniversityP.O. Box 426, Ibrahimia21321AlexandriaEgypt
| | - A. El-Dissouky
- Chemistry Department, Faculty of Science, Alexandria UniversityP.O. Box 426, Ibrahimia21321AlexandriaEgypt
| | - G. Y. Ali
- Chemistry Department, Faculty of Science, Alexandria UniversityP.O. Box 426, Ibrahimia21321AlexandriaEgypt
| | - Shaker Ebrahim
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria UniversityP.O. Box 832AlexandriaEgypt
| | - Azza Shokry
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria UniversityP.O. Box 832AlexandriaEgypt
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