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Peng W, Zhou JW, Li ML, Sun L, Zhang YJ, Li JF. Construction of nanoparticle-on-mirror nanocavities and their applications in plasmon-enhanced spectroscopy. Chem Sci 2024; 15:2697-2711. [PMID: 38404398 PMCID: PMC10882497 DOI: 10.1039/d3sc05722d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/11/2024] [Indexed: 02/27/2024] Open
Abstract
Plasmonic nanocavities exhibit exceptional capabilities in visualizing the internal structure of a single molecule at sub-nanometer resolution. Among these, an easily manufacturable nanoparticle-on-mirror (NPoM) nanocavity is a successful and powerful platform for demonstrating various optical phenomena. Exciting advances in surface-enhanced spectroscopy using NPoM nanocavities have been developed and explored, including enhanced Raman, fluorescence, phosphorescence, upconversion, etc. This perspective emphasizes the construction of NPoM nanocavities and their applications in achieving higher enhancement capabilities or spatial resolution in dark-field scattering spectroscopy and plasmon-enhanced spectroscopy. We describe a systematic framework that elucidates how to meet the requirements for studying light-matter interactions through the creation of well-designed NPoM nanocavities. Additionally, it provides an outlook on the challenges, future development directions, and practical applications in the field of plasmon-enhanced spectroscopy.
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Affiliation(s)
- Wei Peng
- College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Jing-Wen Zhou
- College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Mu-Lin Li
- College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Lan Sun
- College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Yue-Jiao Zhang
- College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Jian-Feng Li
- College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University Zhangzhou 363000 China
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2
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Kennon BS, Niedermeyer WH. EVQ-218: Characterization of High-Energy Nanoparticles that Measure up to NIST Standards. ACS OMEGA 2024; 9:7891-7903. [PMID: 38405443 PMCID: PMC10882673 DOI: 10.1021/acsomega.3c07745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/12/2024] [Accepted: 01/19/2024] [Indexed: 02/27/2024]
Abstract
EVQ-218 is a high-energy produced nanoparticle (NP) with a method of manufacture that avoids chemical or biological synthesis. The patented single-step process generates stable, pure metal NPs directly into HPLC grade water. Laser ablation via the multiple cross laser system occurs at a rate that is in the region of dielectric breakdown, generating temperatures and pressures akin to those of diamond formation. The spherical particles from this method have an ultrastable shell structure that inhibits the hallmark ion emission that occurs in other nanosilver species. The resulting particle size distribution is so narrow that additional size refinement or stabilizing chemistries are not necessary. These properties make EVQ-218 an attractive clean and green alternative to traditional nanosilvers, particularly when factoring in shelf life, as EVQ-218 maintains (uniform) stability for years, while NIST standard materials degrade within a few weeks. EVQ-218 characterization and differentiation are timely as the rise of antimicrobial resistance has caused a surge of research on antimicrobial silver NPs. It has been widely established that the antimicrobial activity of nanosilver is due to ion emission. Unfortunately, metal ions can be quite toxic and prevent certain biomedical and consumer product applications. In an ever-changing regulatory landscape, there is increasing scrutiny to definitively characterize nanomaterials and assess their potential environmental/toxicological footprint. EVQ-218 was characterized alongside comparable NIST standard NPs, with particular interest in speciation and fate. Particle characterization studies reveal that EVQ-218 is nearly equivalent to NIST standard material with respect to particle morphology and uniformity. Dissolution and surface chemistry studies quickly differentiate EVQ-218 as the first stable, nonemissive, pure metal NP that is on par with NIST standards for ideal materials.
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Affiliation(s)
- Bretni S. Kennon
- EVO̅Q Nano, 1895 West 2100 South, Suite 100, Salt Lake City, Utah 84119, United States
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Banerjee D, Adhikary S, Bhattacharya S, Chakraborty A, Dutta S, Chatterjee S, Ganguly A, Nanda S, Rajak P. Breaking boundaries: Artificial intelligence for pesticide detection and eco-friendly degradation. ENVIRONMENTAL RESEARCH 2024; 241:117601. [PMID: 37977271 DOI: 10.1016/j.envres.2023.117601] [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: 06/30/2023] [Revised: 09/21/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023]
Abstract
Pesticides are extensively used agrochemicals across the world to control pest populations. However, irrational application of pesticides leads to contamination of various components of the environment, like air, soil, water, and vegetation, all of which build up significant levels of pesticide residues. Further, these environmental contaminants fuel objectionable human toxicity and impose a greater risk to the ecosystem. Therefore, search of methodologies having potential to detect and degrade pesticides in different environmental media is currently receiving profound global attention. Beyond the conventional approaches, Artificial Intelligence (AI) coupled with machine learning and artificial neural networks are rapidly growing branches of science that enable quick data analysis and precise detection of pesticides in various environmental components. Interestingly, nanoparticle (NP)-mediated detection and degradation of pesticides could be linked to AI algorithms to achieve superior performance. NP-based sensors stand out for their operational simplicity as well as their high sensitivity and low detection limits when compared to conventional, time-consuming spectrophotometric assays. NPs coated with fluorophores or conjugated with antibody or enzyme-anchored sensors can be used through Surface-Enhanced Raman Spectrometry, fluorescence, or chemiluminescence methodologies for selective and more precise detection of pesticides. Moreover, NPs assist in the photocatalytic breakdown of various organic and inorganic pesticides. Here, AI models are ideal means to identify, classify, characterize, and even predict the data of pesticides obtained through NP sensors. The present study aims to discuss the environmental contamination and negative impacts of pesticides on the ecosystem. The article also elaborates the AI and NP-assisted approaches for detecting and degrading a wide range of pesticide residues in various environmental and agrecultural sources including fruits and vegetables. Finally, the prevailing limitations and future goals of AI-NP-assisted techniques have also been dissected.
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Affiliation(s)
- Diyasha Banerjee
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India.
| | - Satadal Adhikary
- Post Graduate Department of Zoology, A. B. N. Seal College, Cooch Behar, West Bengal, India.
| | | | - Aritra Chakraborty
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India.
| | - Sohini Dutta
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India.
| | - Sovona Chatterjee
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India.
| | - Abhratanu Ganguly
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India.
| | - Sayantani Nanda
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India.
| | - Prem Rajak
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India.
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Subramanyam GK, Gaddam SA, Kotakadi VS, Gunti H, Palithya S, Penchalaneni J, Challagundla VN. Green Fabrication of silver nanoparticles by leaf extract of Byttneria Herbacea Roxb and their promising therapeutic applications and its interesting insightful observations in oral cancer. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2023; 51:83-94. [PMID: 36752159 DOI: 10.1080/21691401.2023.2173218] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The present research was carried out to look into therapeutic insight of biosynthesized silver nanoparticles (AgNPs) by leaf extract of Byttneria herbacea Roxb (BH). The analysis of biosynthesized BH-AgNPs by UV-visible spectroscopy shows an intense surface plasmon resonance (SPR) peak at 422 nm initially and 437 nm after 30 min which certainly reveals the formation of BH-AgNPs. Fourier Infra-red Spectroscopy (FT-IR) reveals that BH-AgNPs are biosynthesized by using different bioactive compounds like O-H stretch of free hydroxyl alcohol and phenols, N-H bond of primary amines present in the leaf extract. Transmission Electron Microscope (TEM) analysis revealed that BH-AgNPs are almost spherical in nature with an average size range from of 2 nm to 12 nm. The particle size analysis by Dynamic Light Scattering (DLS) reveals that the BH-AgNPs are poly-dispersed in nature with an average size of 8 nm ± 2 nm, with a negative zeta potential value of -21 mV which reveals the biosynthesized BH-AgNPs are very stable. The BH-AgNPs (Byttneria herbacea -AgNPs) revealed excellent free radical scavenging activity and exceptional antimicrobial activity. The anti-proliferative and cytotoxic studies in KB oral cancer cells revealed biosynthesized BH-AgNPs can employ as future novel therapeutic agents in cancer treatment and other biomedical applications.
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Affiliation(s)
| | - Susmila Aparna Gaddam
- Department of Virology, Sri Venkateswara University, Tirupati, Andhra Pradesh, India
| | | | - Hema Gunti
- Department of Biotechnology, Maharani's Science College for Women, Maharani Cluster University, Bangalore, Karnakataka, India
| | - Sashikiran Palithya
- Department of Biotechnology, Dravidian University, Kuppam, Andhra Pradesh, India
| | - Josthna Penchalaneni
- Department of Biotechnology, Sri Padmavthi Visvavidyalayam (women's University), Tirupati, Andhra Pradesh, India
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Fol MF, Hamdi SAH, Abdel-Rahman HA, Mostafa NA. In vivo efficacy of silver nanoparticles against Syphacia muris infected laboratory Wistar rats. J Parasit Dis 2023; 47:744-756. [PMID: 38009151 PMCID: PMC10667209 DOI: 10.1007/s12639-023-01607-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 06/06/2023] [Indexed: 11/28/2023] Open
Abstract
Helminth infections are a worldwide problem that affects both humans and animals in developing countries. The common pinworm Syphacia muris frequently infects lab rats and can obstruct the creation of unrelated biological experiments. The objective of this study was to examine the in vivo efficacy of silver nanoparticles against S. muris infected Wistar rats. Transmission electron microscopy and X-ray diffraction examinations of silver nanoparticles revealed highly pure polycrystals with a mean size of 4 nm. Rats were divided into group I, the control: received distilled water; groups II and III, the treated: received 2, 4 mg/kg b.w. of Ag NPs, respectively. At the end of the experimental period, all rats were euthanized and dissected for collecting worms. The surface topography of the recovered worms was displayed using light and scanning electron microscopy, and their physiological status was determined using oxidative stress biomarkers. The histological changes in the rat liver, kidney, and spleen were also examined. In the current study, Ag NPs administration revealed substantial alterations in worms collected from treated rats, including shrinkage of lips, peeling and rupture of body cuticles, and disruption of surface annulations. Also, induced a significant increase in malondialdehyde and nitric oxide levels, as well as a decrease in reduced glutathione, glutathione peroxidase and catalase levels compared to control group. Moreover, sections of treated rats' liver, kidney and spleen displayed normal cellular appearance. In conclusion, this is the first in vivo study to evaluate Ag NPs efficacy against S. muris in laboratory rats without significant toxicity.
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Affiliation(s)
- Mona Fathi Fol
- Zoology Department, Faculty of Science, Cairo University, Giza, Egypt
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Yang Y, Pan D, Li J, Jonsson M, Jannasch P, Soroka IL. Using an ionomer as a size regulator in γ-radiation induced synthesis of Ag nanocatalysts for oxygen reduction reaction in alkaline solution. J Colloid Interface Sci 2023; 646:381-390. [PMID: 37207420 DOI: 10.1016/j.jcis.2023.05.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/18/2023] [Accepted: 05/09/2023] [Indexed: 05/21/2023]
Abstract
Ag nanoparticles (Ag NPs) are among the most promising candidates to replace Pt as the catalyst for the oxygen reduction reaction (ORR) in anion exchange membrane fuel cells (AEMFCs). However, synthesizing size-controlled Ag NPs with efficient catalytic performance is still challenging. Herein, uniform Ag NPs are produced through a γ-radiation induced synthesis route in aqueous solutions, using the ionomer PTPipQ100 as both an efficient size regulator in the synthesis and a conductor of hydroxide ions during the ORR process. The origin of the size control is mainly attributed to the affinity of the ionomer to metallic silver. The resulting Ag NPs covered with ionomer layers can be applied as model catalysts for ORR. The nanoparticles that were prepared using 320 ppm ionomer in the reaction solution turned out to be coated with a ∼ 1 nm thick ionomer layer and exhibited superior ORR activity as compared to other Ag NPs of similar size studied here. The improved electrocatalytic performance can be attributed to the optimal ionomer coverage that enables fast oxygen diffusion, as well as interactions at the Ag-ionomer interface which promote the desorption of OH intermediates from the Ag surface. This work demonstrates the advantage of using an ionomer as the capping agent to produce efficient ORR catalysts.
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Affiliation(s)
- Yi Yang
- Applied Physical Chemistry, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
| | - Dong Pan
- Polymer & Materials Chemistry, Department of Chemistry, Lund University, SE-221 00 Lund, Sweden
| | - Junyi Li
- Applied Physical Chemistry, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Mats Jonsson
- Applied Physical Chemistry, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Patric Jannasch
- Polymer & Materials Chemistry, Department of Chemistry, Lund University, SE-221 00 Lund, Sweden
| | - Inna L Soroka
- Applied Physical Chemistry, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
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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.
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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
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A Comparative Study of Cancer Cells Susceptibility to Silver Nanoparticles Produced by Electron Beam. Pharmaceutics 2023; 15:pharmaceutics15030962. [PMID: 36986823 PMCID: PMC10056419 DOI: 10.3390/pharmaceutics15030962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/19/2023] Open
Abstract
Introduction: Silver nanoparticles (AgNPs) have a wide range of bioactivity, which is highly dependent on particle size, shape, stabilizer, and production method. Here, we present the results of studies of AgNPs cytotoxic properties obtained by irradiation treatment of silver nitrate solution and various stabilizers by accelerating electron beam in a liquid medium. Methods: The results of studies of morphological characteristics of silver nanoparticles were obtained by transmission electron microscopy, UV-vis spectroscopy, and dynamic light scattering measurements. MTT test, alamar blue test, flow cytometry, and fluorescence microscopy were used to study the anti-cancer properties. As biological objects for standard tests, adhesive and suspension cell cultures of normal and tumor origin, including prostate cancer, ovarian cancer, breast cancer, colon cancer, neuroblastoma, and leukemia, were studied. Results: The results showed that the silver nanoparticles obtained by irradiation with polyvinylpyrrolidone and collagen hydrolysate are stable in solutions. Samples with different stabilizers were characterized by a wide average size distribution from 2 to 50 nm and low zeta potential from −7.3 to +12.4 mV. All AgNPs formulations showed a dose-dependent cytotoxic effect on tumor cells. It has been established that the particles obtained with the combination of polyvinylpyrrolidone/collagen hydrolysate have a relatively more pronounced cytotoxic effect in comparison to samples stabilized with only collagen or only polyvinylpyrrolidone. The minimum inhibitory concentrations for nanoparticles were less than 1 μg/mL for various types of tumor cells. It was found that neuroblastoma (SH-SY5Y) is the most susceptible, and ovarian cancer (SKOV-3) is the most resistant to the action of silver nanoparticles. The activity of the AgNPs formulation prepared with a mixture of PVP and PH studied in this work was higher that activity of other AgNPs formulations reported in the literature by about 50 times. Conclusions: The results indicate that the AgNPs formulations synthesized with an electron beam and stabilized with polyvinylpyrrolidone and protein hydrolysate deserve deep study for their further use in selective cancer treatment without harming healthy cells in the patient organism.
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Gandha Gogoi N, Dutta P, Saikia J, Handique JG. Antioxidant, Antibacterial, and BSA Binding Properties of Curcumin Caffeate Capped Silver Nanoparticles Prepared by Greener Method. ChemistrySelect 2022. [DOI: 10.1002/slct.202203989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Nishi Gandha Gogoi
- Department of Chemistry Dibrugarh University 786004 Dibrugarh Assam India
| | - Pankaj Dutta
- Department of Physics Dibrugarh University 786004 Dibrugarh Assam India
| | - Jiban Saikia
- Department of Chemistry Dibrugarh University 786004 Dibrugarh Assam India
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The Enhancement of the Antibacterial Activity for Silver Nanoparticles Synthesized from the Extract of Citrus grandis Peel Under LED Irradiation. BIONANOSCIENCE 2022. [DOI: 10.1007/s12668-022-01041-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Mkrtchyan KV, Pigareva VA, Zezina EA, Kuznetsova OA, Semenova AA, Yushina YK, Tolordava ER, Grudistova MA, Sybachin AV, Klimov DI, Abramchuk SS, Yaroslavov AA, Zezin AA. Preparation of Biocidal Nanocomposites in X-ray Irradiated Interpolyelectolyte Complexes of Polyacrylic Acid and Polyethylenimine with Ag-Ions. Polymers (Basel) 2022; 14:polym14204417. [PMID: 36297995 PMCID: PMC9612164 DOI: 10.3390/polym14204417] [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: 09/01/2022] [Revised: 10/13/2022] [Accepted: 10/15/2022] [Indexed: 12/02/2022] Open
Abstract
Due to the presence of cationic units interpolyelectrolyte complexes (IPECs) can be used as a universal basis for preparation of biocidal coatings on different surfaces. Metallopolymer nanocomposites were successfully synthesized in irradiated solutions of polyacrylic acid (PAA) and polyethylenimine (PEI), and dispersions of non-stoichiometric IPECs of PAA–PEI containing silver ions. The data from turbidimetric titration and dynamic light scattering showed that pH 6 is the optimal value for obtaining IPECs. Metal polymer complexes based on IPEC with a PAA/PEI ratio equal to 3/1 and 1/3 were selected for synthesis of nanocomposites due to their aggregative stability. Studies using methods of UV–VIS spectroscopy and TEM have demonstrated that the size and spatial organization of silver nanoparticles depend on the composition of polymer systems. The average sizes of nanoparticles are 5 nm and 20 nm for complexes with a molar ratio of PAA/PEI units equal to 3/1 and 1/3, respectively. The synthesized nanocomposites were applied to the glass surface and exhibited high antibacterial activity against both gram-positive (Staphylococcus aureus) and gram-negative bacteria (Salmonella). It is shown that IPEC-Ag coatings demonstrate significantly more pronounced biocidal activity not only in comparison with macromolecular complexes of PAA–PEI, but also coatings of PEI and PEI based nanocomposites.
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Affiliation(s)
- Kristina V. Mkrtchyan
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia
| | - Vladislava A. Pigareva
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Elena A. Zezina
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Oksana A. Kuznetsova
- Gorbatov Federal Research Centre for Food Systems, Talalikhina St. 26, 109316 Moscow, Russia
| | - Anastasia A. Semenova
- Gorbatov Federal Research Centre for Food Systems, Talalikhina St. 26, 109316 Moscow, Russia
| | - Yuliya K. Yushina
- Gorbatov Federal Research Centre for Food Systems, Talalikhina St. 26, 109316 Moscow, Russia
| | - Etery R. Tolordava
- Gorbatov Federal Research Centre for Food Systems, Talalikhina St. 26, 109316 Moscow, Russia
| | - Maria A. Grudistova
- Gorbatov Federal Research Centre for Food Systems, Talalikhina St. 26, 109316 Moscow, Russia
| | - Andrey V. Sybachin
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Dmitry I. Klimov
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Sergey S. Abramchuk
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova St. 28, 119334 Moscow, Russia
| | - Alexander A. Yaroslavov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Alexey A. Zezin
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
- Correspondence:
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Hovhannisyan Z, Timotina M, Manoyan J, Gabrielyan L, Petrosyan M, Kusznierewicz B, Bartoszek A, Jacob C, Ginovyan M, Trchounian K, Sahakyan N, Nasim MJ. Ribes nigrum L. Extract-Mediated Green Synthesis and Antibacterial Action Mechanisms of Silver Nanoparticles. Antibiotics (Basel) 2022; 11:antibiotics11101415. [PMID: 36290073 PMCID: PMC9598068 DOI: 10.3390/antibiotics11101415] [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: 09/15/2022] [Revised: 10/01/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022] Open
Abstract
Silver nanoparticles (Ag NPs) represent one of the most widely employed metal-based engineered nanomaterials with a broad range of applications in different areas of science. Plant extracts (PEs) serve as green reducing and coating agents and can be exploited for the generation of Ag NPs. In this study, the phytochemical composition of ethanolic extract of black currant (Ribes nigrum) leaves was determined. The main components of extract include quercetin rutinoside, quercetin hexoside, quercetin glucuronide, quercetin malonylglucoside and quercitrin. The extract was subsequently employed for the green synthesis of Ag NPs. Consequently, R. nigrum leaf extract and Ag NPs were evaluated for potential antibacterial activities against Gram-negative bacteria (Escherichia coli ATCC 25922 and kanamycin-resistant E. coli pARG-25 strains). Intriguingly, the plant extract did not show any antibacterial effect, whilst Ag NPs demonstrated significant activity against tested bacteria. Biogenic Ag NPs affect the ATPase activity and energy-dependent H+-fluxes in both strains of E. coli, even in the presence of N,N’-dicyclohexylcarbodiimide (DCCD). Thus, the antibacterial activity of the investigated Ag NPs can be explained by their impact on the membrane-associated properties of bacteria.
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Affiliation(s)
- Zaruhi Hovhannisyan
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, 66123 Saarbruecken, Germany
| | - Marina Timotina
- Department of Medical Biochemistry and Biotechnology, Russian-Armenian University, 0051 Yerevan, Armenia
| | - Jemma Manoyan
- Department of Biochemistry, Microbiology and Biotechnology, Biology Faculty, Yerevan State University, 0025 Yerevan, Armenia
| | - Lilit Gabrielyan
- Department of Biochemistry, Microbiology and Biotechnology, Biology Faculty, Yerevan State University, 0025 Yerevan, Armenia
| | - Margarit Petrosyan
- Department of Biochemistry, Microbiology and Biotechnology, Biology Faculty, Yerevan State University, 0025 Yerevan, Armenia
| | - Barbara Kusznierewicz
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdańsk, Poland
| | - Agnieszka Bartoszek
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdańsk, Poland
| | - Claus Jacob
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, 66123 Saarbruecken, Germany
| | - Mikayel Ginovyan
- Department of Biochemistry, Microbiology and Biotechnology, Biology Faculty, Yerevan State University, 0025 Yerevan, Armenia
- Research Institute of Biology, Yerevan State University, 0025 Yerevan, Armenia
| | - Karen Trchounian
- Department of Biochemistry, Microbiology and Biotechnology, Biology Faculty, Yerevan State University, 0025 Yerevan, Armenia
- Research Institute of Biology, Yerevan State University, 0025 Yerevan, Armenia
| | - Naira Sahakyan
- Department of Biochemistry, Microbiology and Biotechnology, Biology Faculty, Yerevan State University, 0025 Yerevan, Armenia
- Research Institute of Biology, Yerevan State University, 0025 Yerevan, Armenia
- Correspondence: (N.S.); (M.J.N.); Tel.: +374-60710547 (N.S.); +496-8130257335 (M.J.N.)
| | - Muhammad Jawad Nasim
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, 66123 Saarbruecken, Germany
- Correspondence: (N.S.); (M.J.N.); Tel.: +374-60710547 (N.S.); +496-8130257335 (M.J.N.)
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Song I, Kim Y, Lee BH, Chae M, Kim S, Yoon C, Joo MK, Shin J, Kim SM, Ko C. Tailorable Electronic and Electric Properties of Graphene with Selective Decoration of Silver Nanoparticles by Laser-Assisted Photoreduction. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3549. [PMID: 36296738 PMCID: PMC9608314 DOI: 10.3390/nano12203549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/03/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
While graphene shows great potential for diverse device applications, to broaden the scope of graphene-based device applications further, it would be necessary to tune the electronic state of graphene and its resultant electrical properties properly. Surface decoration with metal nanoparticles is one of the efficient doping methods to control the properties of two-dimensional materials. Here, we report the p-type doping effects in single-layer graphene decorated with silver nanoparticles (AgNPs) that were formed area-selectively by the facile one-step photoreduction (PR) process based on focused-laser irradiation. During the PR process, AgNPs were reduced on graphene in AgNO3 solution by laser-driven photoexcitation followed by chemical reactions. Based on scanning electron microscopy analyses, the morphology characteristics of AgNPs were shown to be modulated by the laser dwell time and power controllably. Further, p-type doping effects were demonstrated using graphene-field-effect transistor structures whose graphene channels were selectively decorated with AgNPs by the PR process, as validated by the decrease in channel resistance and the shift of the Dirac point voltage. Moreover, the growth of AgNPs was observed to be more active on the graphene channel that was laser-annealed ahead of the PR process, leading to enhancing the efficiency of this approach for altering device characteristics.
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Affiliation(s)
- Inseon Song
- Department of Applied Physics, College of Engineering, Sookmyung Women’s University, Seoul 04310, Korea
| | - Yujeong Kim
- Department of Applied Physics, College of Engineering, Sookmyung Women’s University, Seoul 04310, Korea
| | - Byung Hoon Lee
- Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Sungkyunkwan University, Suwon 16419, Korea
| | - Minji Chae
- Department of Applied Physics, College of Engineering, Sookmyung Women’s University, Seoul 04310, Korea
| | - Sooyeon Kim
- Department of Applied Physics, College of Engineering, Sookmyung Women’s University, Seoul 04310, Korea
| | - ChangKyu Yoon
- Department of Mechanical Systems Engineering, Sookmyung Women’s University, Seoul 04310, Korea
- Institute of Advanced Materials and Systems, Sookmyung Women’s University, Seoul 04310, Korea
| | - Min-Kyu Joo
- Department of Applied Physics, College of Engineering, Sookmyung Women’s University, Seoul 04310, Korea
- Institute of Advanced Materials and Systems, Sookmyung Women’s University, Seoul 04310, Korea
| | - Jeeyoung Shin
- Department of Mechanical Systems Engineering, Sookmyung Women’s University, Seoul 04310, Korea
- Institute of Advanced Materials and Systems, Sookmyung Women’s University, Seoul 04310, Korea
| | - Soo Min Kim
- Department of Chemistry, Sookmyung Women’s University, Seoul 04310, Korea
| | - Changhyun Ko
- Department of Applied Physics, College of Engineering, Sookmyung Women’s University, Seoul 04310, Korea
- Institute of Advanced Materials and Systems, Sookmyung Women’s University, Seoul 04310, Korea
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14
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Cao Z, Ye Y, Li G, Zhang R, Dong S, Liu Y. Monolithically integrated microchannel plate functionalized with ZnO nanorods for fluorescence-enhanced digital polymerase chain reaction. Biosens Bioelectron 2022; 213:114499. [DOI: 10.1016/j.bios.2022.114499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/08/2022] [Accepted: 06/21/2022] [Indexed: 11/27/2022]
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15
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Madurai Ramakrishnan V, Rajesh G, Selvakumar P, Flores M, Muthukumarasamy N, Velauthapillai D, Lan Chi NT, Pugazhendhi A. TiO 2/AgO composites by one step photo reduction technique as electron transport layers (ETL) for dye-sensitized solar cells. CHEMOSPHERE 2022; 305:134953. [PMID: 35598786 DOI: 10.1016/j.chemosphere.2022.134953] [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: 02/17/2022] [Revised: 04/23/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
Dye-sensitized solar cell's electron transport layer is responsible for transporting photo-generated electrons to the outer circuit. Utilizing localized surface plasmon resonance (SPR), light absorption could be enhanced to a greater degree, which can drive dye molecules to excited state more effectively than far-field light. In this work, TiO2 nanoparticles were prepared by solvothermal method, and Ag nanoparticles were decorated over TiO2 surface through photodeposition method. XRD data of the TiO2 sample exhibits anatase phase and in the Ag nanoparticle decorated TiO2 sample, peaks corresponding to (111) planes of Ag was observed. UV-Vis absorption analysis of the TiO2 and Ag decorated TiO2 samples showed absorption in the UV region for the TiO2, and the SPR effect was detected for the Ag deposited TiO2 samples. Ag nanoparticles decorated over TiO2 was observed to be spherical in shape through the images from transmission electron microscope. Presence of both Ag and AgO in the prepared sample was revealed through the data from X-ray photoelectron spectroscopy. The prepared material was used as photoanodes in the construction of the DSSCs, and their performance was evaluated.
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Affiliation(s)
- Venkatraman Madurai Ramakrishnan
- Department of Physics, Dr. N.G.P. Arts and Science College, Coimbatore, 641 048, Tamil Nadu, India; Department of Physics, Coimbatore Institute of Technology, Coimbatore, 641 014, Tamil Nadu, India
| | - G Rajesh
- Department of Physics, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile
| | - P Selvakumar
- Department of Physics, Coimbatore Institute of Technology, Coimbatore, 641 014, Tamil Nadu, India; Department of Engineering and Sciences, Western Norway University of Applied Sciences, Bergen, Norway
| | - M Flores
- Department of Physics, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile
| | - N Muthukumarasamy
- Department of Physics, Coimbatore Institute of Technology, Coimbatore, 641 014, Tamil Nadu, India
| | - Dhayalan Velauthapillai
- Department of Engineering and Sciences, Western Norway University of Applied Sciences, Bergen, Norway
| | - Nguyen Thuy Lan Chi
- School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam
| | - Arivalagan Pugazhendhi
- Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam.
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16
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Sampath G, Chen YY, Rameshkumar N, Krishnan M, Nagarajan K, Shyu DJH. Biologically Synthesized Silver Nanoparticles and Their Diverse Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3126. [PMID: 36144915 PMCID: PMC9500900 DOI: 10.3390/nano12183126] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/22/2022] [Accepted: 09/06/2022] [Indexed: 05/14/2023]
Abstract
Nanotechnology has become the most effective and rapidly developing field in the area of material science, and silver nanoparticles (AgNPs) are of leading interest because of their smaller size, larger surface area, and multiple applications. The use of plant sources as reducing agents in the fabrication of silver nanoparticles is most attractive due to the cheaper and less time-consuming process for synthesis. Furthermore, the tremendous attention of AgNPs in scientific fields is due to their multiple biomedical applications such as antibacterial, anticancer, and anti-inflammatory activities, and they could be used for clean environment applications. In this review, we briefly describe the types of nanoparticle syntheses and various applications of AgNPs, including antibacterial, anticancer, and larvicidal applications and photocatalytic dye degradation. It will be helpful to the extent of a better understanding of the studies of biological synthesis of AgNPs and their multiple uses.
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Affiliation(s)
- Gattu Sampath
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan
- Department of Zoology, School of Life Sciences, Periyar University, Salem 636011, India
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, New Delhi 110016, India
| | - Yih-Yuan Chen
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi City 600355, Taiwan
| | | | | | - Kayalvizhi Nagarajan
- Department of Zoology, School of Life Sciences, Periyar University, Salem 636011, India
| | - Douglas J. H. Shyu
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan
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17
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Liu Y, Mao J, Guo Z, Hu Y, Wang S. Polyvinyl alcohol/carboxymethyl chitosan hydrogel loaded with silver nanoparticles exhibited antibacterial and self-healing properties. Int J Biol Macromol 2022; 220:211-222. [PMID: 35970368 DOI: 10.1016/j.ijbiomac.2022.08.061] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 01/23/2023]
Abstract
Hydrogel materials are gradually increasing research in biological aspects due to their unique properties. In order to prepare hydrogels with the potential to be used in clinical wound therapy, the authors prepared a bifunctional hydrogel with antibacterial and self-healing properties. The hydrogel was composed of borax cross-linked polyvinyl alcohol (PVA) and carboxymethyl chitosan (CMCS), which realizes self-healing between polymers through hydrogen bonds and borate ester bonds. The double cross-linking of hydrogen bonds and borate ester bonds also endows the hydrogel with better mechanical properties (toughness and tensile stress can reach 22.30 MJ/m3 and 70.35 KPa, respectively). On this basis, adding highly stable silver nanoparticles (AgNPs) to the hydrogel can effectively inhibit the growth of E. coli and S. aureus. This idea provides the possibility for the application of hydrogels in the process of biological wound healing.
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Affiliation(s)
- Yalei Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, People's Republic of China
| | - Jie Mao
- Department of Basic, Zhejiang Pharmaceutical College, Ningbo, China
| | - Zhiyong Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, People's Republic of China
| | - Yufang Hu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, People's Republic of China
| | - Sui Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, State Key Laboratory Base of Novel Functional Materials and Preparation Science, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, People's Republic of China.
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18
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Thobakgale L, Ombinda-Lemboumba S, Mthunzi-Kufa P. Chemical Sensor Nanotechnology in Pharmaceutical Drug Research. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2688. [PMID: 35957119 PMCID: PMC9370582 DOI: 10.3390/nano12152688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
The increase in demand for pharmaceutical treatments due to pandemic-related illnesses has created a need for improved quality control in drug manufacturing. Understanding the physical, biological, and chemical properties of APIs is an important area of health-related research. As such, research into enhanced chemical sensing and analysis of pharmaceutical ingredients (APIs) for drug development, delivery and monitoring has become immensely popular in the nanotechnology space. Nanomaterial-based chemical sensors have been used to detect and analyze APIs related to the treatment of various illnesses pre and post administration. Furthermore, electrical and optical techniques are often coupled with nano-chemical sensors to produce data for various applications which relate to the efficiencies of the APIs. In this review, we focus on the latest nanotechnology applied to probing the chemical and biochemical properties of pharmaceutical drugs, placing specific interest on several types of nanomaterial-based chemical sensors, their characteristics, detection methods, and applications. This study offers insight into the progress in drug development and monitoring research for designing improved quality control methods for pharmaceutical and health-related research.
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Affiliation(s)
- Lebogang Thobakgale
- National Laser Centre, Council for Scientific and Industrial Research, P.O. Box 395, Pretoria 0001, South Africa
- College of Agriculture, Engineering and Science, School of Chemistry and Physics, University of Kwa-Zulu Natal, University Road, Westville, Durban 3630, South Africa
| | - Saturnin Ombinda-Lemboumba
- National Laser Centre, Council for Scientific and Industrial Research, P.O. Box 395, Pretoria 0001, South Africa
| | - Patience Mthunzi-Kufa
- National Laser Centre, Council for Scientific and Industrial Research, P.O. Box 395, Pretoria 0001, South Africa
- College of Agriculture, Engineering and Science, School of Chemistry and Physics, University of Kwa-Zulu Natal, University Road, Westville, Durban 3630, South Africa
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19
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López-Martín R, Rodrigo I, Ballesta C, Arias A, Mas A, Santos Burgos B, Normile PS, De Toro JA, Binns C. Effectiveness of Silver Nanoparticles Deposited in Facemask Material for Neutralising Viruses. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2662. [PMID: 35957092 PMCID: PMC9370635 DOI: 10.3390/nano12152662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 01/23/2023]
Abstract
Cloth used for facemask material has been coated with silver nanoparticles using an aerosol method that passes pure uncoated nanoparticles through the cloth and deposits them throughout the volume. The particles have been characterized by electron microscopy and have a typical diameter of 4 nm with the atomic structure of pure metallic silver presented as an assortment of single crystals and polycrystals. The particles adhere well to the cloth fibers, and the coating consists of individual nanoparticles at low deposition times, evolving to fully agglomerated assemblies in heavy coatings. The cloth was exposed to Usutu virus and murine norovirus particles in suspension and allowed to dry, following which, the infectious virus particles were rescued by soaking the cloth in culture media. It was found that up to 98% of the virus particles were neutralized by this contact with the silver nanoparticles for optimum deposition conditions. The best performance was obtained with agglomerated films and with polycrystalline nanoparticles. The work indicates that silver nanoparticles embedded in masks can neutralize the majority of virus particles that enter the mask and thus increase the opacity of masks to infectious viruses by up to a factor of 50. In addition, the majority of the virus particles released from the mask after use are non-infectious.
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Affiliation(s)
- Raúl López-Martín
- Instituto Regional de Investigación Científica Aplicada (IRICA), 13005 Ciudad Real, Spain; (R.L.-M.); (B.S.B.); (P.S.N.); (J.A.D.T.)
- Departamento de Física Aplicada, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Imanol Rodrigo
- Unidad de Biomedicina, CSIC, Universidad de Castilla-La Mancha, 02008 Albacete, Spain; (I.R.); (C.B.); (A.A.); (A.M.)
- Unidad de Medicina Molecular, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla-La Mancha, 02008 Albacete, Spain
| | - Carlos Ballesta
- Unidad de Biomedicina, CSIC, Universidad de Castilla-La Mancha, 02008 Albacete, Spain; (I.R.); (C.B.); (A.A.); (A.M.)
- Unidad de Medicina Molecular, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla-La Mancha, 02008 Albacete, Spain
| | - Armando Arias
- Unidad de Biomedicina, CSIC, Universidad de Castilla-La Mancha, 02008 Albacete, Spain; (I.R.); (C.B.); (A.A.); (A.M.)
- Unidad de Medicina Molecular, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla-La Mancha, 02008 Albacete, Spain
- Escuela Técnica Superior de Ingenieros Agrónomos, Universidad de Castilla-La Mancha, 02006 Albacete, Spain
| | - Antonio Mas
- Unidad de Biomedicina, CSIC, Universidad de Castilla-La Mancha, 02008 Albacete, Spain; (I.R.); (C.B.); (A.A.); (A.M.)
- Unidad de Medicina Molecular, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla-La Mancha, 02008 Albacete, Spain
- Facultad de Farmacia, Universidad de Castilla-La Mancha, 02071 Albacete, Spain
| | - Benito Santos Burgos
- Instituto Regional de Investigación Científica Aplicada (IRICA), 13005 Ciudad Real, Spain; (R.L.-M.); (B.S.B.); (P.S.N.); (J.A.D.T.)
- Departamento de Física Aplicada, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Peter S. Normile
- Instituto Regional de Investigación Científica Aplicada (IRICA), 13005 Ciudad Real, Spain; (R.L.-M.); (B.S.B.); (P.S.N.); (J.A.D.T.)
- Departamento de Física Aplicada, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Jose A. De Toro
- Instituto Regional de Investigación Científica Aplicada (IRICA), 13005 Ciudad Real, Spain; (R.L.-M.); (B.S.B.); (P.S.N.); (J.A.D.T.)
- Departamento de Física Aplicada, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Chris Binns
- Instituto Regional de Investigación Científica Aplicada (IRICA), 13005 Ciudad Real, Spain; (R.L.-M.); (B.S.B.); (P.S.N.); (J.A.D.T.)
- Departamento de Física Aplicada, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
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20
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Nicolae-Maranciuc A, Chicea D, Chicea LM. Ag Nanoparticles for Biomedical Applications-Synthesis and Characterization-A Review. Int J Mol Sci 2022; 23:ijms23105778. [PMID: 35628585 PMCID: PMC9146088 DOI: 10.3390/ijms23105778] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/09/2022] [Accepted: 05/17/2022] [Indexed: 12/18/2022] Open
Abstract
Silver nanoparticles have been intensively studied over a long period of time because they exhibit antibacterial properties in infection treatments, wound healing, or drug delivery systems. The advantages that silver nanoparticles offer regarding the functionalization confer prolonged stability and make them suitable for biomedical applications. Apart from functionalization, silver nanoparticles exhibit various shapes and sizes depending on the conditions used through their fabrications and depending on their final purpose. This paper presents a review of silver nanoparticles with respect to synthesis procedures, including the polluting green synthesis. Currently, the most commonly used characterization techniques required for nanoparticles investigation in antibacterial treatments are described briefly, since silver nanoparticles possess differences in their structure or morphology.
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Affiliation(s)
- Alexandra Nicolae-Maranciuc
- Research Center for Complex Physical Systems, Faculty of Sciences, Lucian Blaga University of Sibiu, Dr. Ion Raţiu Street 5−7, 550012 Sibiu, Romania;
| | - Dan Chicea
- Research Center for Complex Physical Systems, Faculty of Sciences, Lucian Blaga University of Sibiu, Dr. Ion Raţiu Street 5−7, 550012 Sibiu, Romania;
- Correspondence:
| | - Liana Maria Chicea
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania;
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21
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Kumar I, Gangwar C, Yaseen B, Pandey PK, Mishra SK, Naik RM. Kinetic and Mechanistic Studies of the Formation of Silver Nanoparticles by Nicotinamide as a Reducing Agent. ACS OMEGA 2022; 7:13778-13788. [PMID: 35559139 PMCID: PMC9088940 DOI: 10.1021/acsomega.2c00046] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 04/01/2022] [Indexed: 05/11/2023]
Abstract
Here, in the present study, silver nanoparticles (SNPs) in the size range 6-10 nm have been synthesized by a chemical reduction method using nicotinamide (NTA), an anti-inflammatory agent, and cetyltrimethylammonium bromide (CTAB), a good stabilizing agent, to preparing the nanoparticles in the 6-10 nm size range. Kinetic studies on the formation of SNPs have been performed spectrophotometrically at 410 nm (strong plasmon band) in aqueous medium as a function of [AgNO3], [NTA], [NaOH], and [CTAB]. The plot of ln(A ∞ - A t ) versus time exhibited a straight line and the pseudo-first-order rate constants of different variables were calculated from its slope. On the basis of experimental findings, a plausible mechanism was proposed for the formation of SNPs colloid. From the mechanism, it is proved that the reduction of silver ions proceeded through the formation of silver oxide in colloidal form by their reaction with hydroxide ions and NTA after performing their function and readily undergo hydrolysis to form nicotinic acid as a hydrolysis product with the release of ammonia gas. The preliminary characterization of the SNPs was carried out by using a UV-visible spectrophotometer. The detailed characterization of SNPs was also carried out using other experimental techniques such as Fourier transform infrared spectroscopy (FTIR), field-emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), and powder X-ray diffraction (PXRD). SNPs show a remarkable catalytic activity of up to 90% for the reduction of the cationic dye methylene blue.
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Affiliation(s)
- Indresh Kumar
- Department
of Chemistry, Lucknow University, Lucknow 226007, Uttar Pradesh, India
| | - Chinky Gangwar
- Department
of Chemistry, Lucknow University, Lucknow 226007, Uttar Pradesh, India
| | - Bushra Yaseen
- Department
of Chemistry, Lucknow University, Lucknow 226007, Uttar Pradesh, India
| | - Pradeep Kumar Pandey
- Department
of Chemistry, Lucknow University, Lucknow 226007, Uttar Pradesh, India
| | - Sheo K. Mishra
- Department
of Physics, Indira Gandhi National Tribal
University, Amarkantak 484887, Madhya Pradesh, India
| | - Radhey Mohan Naik
- Department
of Chemistry, Lucknow University, Lucknow 226007, Uttar Pradesh, India
- Email for R.M.N.:
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22
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Li S, Gong X, Li Z, Yu M, Chen Y, Yu H, Wang S, Shao H, Dou M, Cheng Y. Interfacial Nucleation Mechanism of Water-Soluble Ag-In-S Quantum Dots at Room Temperature and Their Visible Light Catalytic Performance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4692-4701. [PMID: 35385285 DOI: 10.1021/acs.langmuir.2c00236] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A novel interfacial reaction nucleation mechanism for the preparation of water-soluble Ag-In-S quantum dots (AIS QDs) was proposed in which interfacial acid regulates the concentration of hydroxide ions outside the complex and sulfur sources attack cations at the interface of the complex, covalent bonds between cations and sulfur sources are formed at the interface of the complex, and the nucleation and growth of crystals is finished at room temperature. By bypassing the heating process normally necessary for crystal nucleation and growth, AIS QDs can be produced on a large scale under simple, mild conditions. At the same time, the characteristics of this mechanism enable AIS QDs to be directly synthesized in an organic pollutant solution. This study represents a significant advance in the mechanism of crystal synthesis and contributes to the photocatalytic decomposition of organic pollutants from theory to practice.
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Affiliation(s)
- Shenjie Li
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Xiaoyu Gong
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Zhiqiang Li
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Minghui Yu
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Yanyan Chen
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Hao Yu
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Shuang Wang
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Hongyu Shao
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Minghao Dou
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
| | - Yuye Cheng
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China
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23
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Composite Electrodes Based on Carbon Materials Decorated with Hg Nanoparticles for the Simultaneous Detection of Cd(II), Pb(II) and Cu(II). CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10040148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Monitoring water quality has become a goal to prevent issues related to human health and environmental conditions. In this sense, the concentration of metal ions in water sources is screened, as these are considered persistent contaminants. In this work, we describe the implementation of customized graphite electrodes decorated with two types of Hg nanoparticles (Hg-NPs), optimized toward the electrochemical detection of Cd, Pb and Cu. Here, we combine Hg, a well-known property to form alloys with other metals, with the nanoscale features of Hg-NPs, resulting in improved electrochemical sensors towards these analytes with a substantial reduction in the used Hg amount. Hg-NPs were synthesized using poly(diallyldimethylammonium) chloride (PDDA) in a combined role as a reducing and stabilizing agent, and then appropriately characterized by means of Transmission Electron Microscopy (TEM) and Zeta Potential. The surface of composite electrodes with optimized graphite content was modified by the drop-casting of the prepared Hg-NPs. The obtained nanocomposite electrodes were morphologically characterized by Scanning Electron Microscopy (SEM), and electrochemically by Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS). The results show that the Hg-NP-modified electrodes present better responses towards Cd(II), Pb(II) and Cu(II) detection in comparison with the bare graphite electrode. Analytical performance of sensors was evaluated by square-wave anodic stripping voltammetry (SWASV), obtaining a linear range of 0.005–0.5 mg·L−1 for Cd2+, of 0.028–0.37 mg·L−1 for Pb2+ and of 0.057–1.1 mg·L−1 for Cu2+. Real samples were analyzed using SWASV, showing good agreement with the recovery values of inductively coupled plasma–mass spectrometry (ICP-MS) measurements.
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24
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Goh SCK, Wu W, Siah CF, Phee DKY, Liu A, Tay BK. Surface disinfection with silver loaded pencil graphite prepared with green UV photoreduction technique. NANOTECHNOLOGY 2022; 33:235602. [PMID: 35158341 DOI: 10.1088/1361-6528/ac54dd] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 02/14/2022] [Indexed: 06/14/2023]
Abstract
Carbon-based materials have been studied for their antimicrobial properties. Previously, most antimicrobial studies are investigated with suspended nanoparticles in a liquid medium. Most works are often carried out with highly ordered pyrolytic graphite. These materials are expensive and are not viable for mass use on high-touch surfaces. Additionally, highly antimicrobial silver nanoparticles are often incorporated onto substrates by chemical reduction. At times, harmful chemicals are used. In this work, low-cost graphite pencils are mechanically exfoliated and transferred onto Si substrates. The sparsely-covered graphite flakes are treated by either plasma O2or UV irradiation. Subsequently, Ag is photo reduced in the presence of UV onto selected graphite flake samples. It is found that graphite flake surface topography and defects are dependent on the treatment process. High surface roughness and (defects density,ID/IG) are induced by plasma O2follows by UV and pristine graphite flake as follows: 6.45 nm (0.62), 4.96 nm (0.5), 3.79 nm (0.47). Antimicrobial tests withE. colireveal high killing efficiency by photoreduced Ag-on-graphite flake. The reversible effect of Ag leaching can be compensated by repeating the photoreduction process. This work proposes that UV treatment is a promising technique over that of plasma O2in view that the latter treated surface could repel bacteria resulting in lower bacteria-killing efficiency.
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Affiliation(s)
- Simon Chun Kiat Goh
- CINTRA, Nanyang Technological University, 639798, Singapore
- School of Electrical and Electronic, Nanyang Technological University, 639798, Singapore
| | - Wenshuai Wu
- School of Electrical and Electronic, Nanyang Technological University, 639798, Singapore
| | - Chun Fei Siah
- School of Electrical and Electronic, Nanyang Technological University, 639798, Singapore
| | - Derek Keng Yang Phee
- School of Electrical and Electronic, Nanyang Technological University, 639798, Singapore
| | - Aiqun Liu
- School of Electrical and Electronic, Nanyang Technological University, 639798, Singapore
| | - Beng Kang Tay
- CINTRA, Nanyang Technological University, 639798, Singapore
- School of Electrical and Electronic, Nanyang Technological University, 639798, Singapore
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Singh P, Mijakovic I. Strong Antimicrobial Activity of Silver Nanoparticles Obtained by the Green Synthesis in Viridibacillus sp. Extracts. Front Microbiol 2022; 13:820048. [PMID: 35250934 PMCID: PMC8888960 DOI: 10.3389/fmicb.2022.820048] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/25/2022] [Indexed: 12/22/2022] Open
Abstract
Recently, green silver nanoparticles (G-AgNPs) have gained much attention in medical science due to their extraordinary effects against multidrug-resistant microorganisms. The strong antimicrobial nature of G-AgNPs corresponds to their unique physicochemical properties such as size, shape, surface charge, and active surface groups available to interact with the pathogens. The current study demonstrates a simple, environmentally friendly, and economical method to produce G-AgNPs from an environmental isolate of Viridibacillus sp. The produced G-AgNPs were characterized by various analytical methods, including UV-Vis spectroscopy, single-particle inductively coupled plasma-mass spectrometry (sp-ICP-MS), scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDX), elemental mapping, transmission electron microscopy (TEM), dynamic light scattering (DLS), Fourier-transform infrared spectroscopy (FTIR), and Thermogravimetric analysis (TGA). The reduction of Ag+ to Ag° was observed by UV-Vis spectroscopy, which demonstrated the formation of stable G-AgNPs with a Surface Plasmon Resonance (SPR) band at the maximum of 430 nm. TEM analysis demonstrated that the G-AgNPs were spherical with a 5–30 nm size range. The produced G-AgNPs were stable for more than 1 year in an aqueous solution at 4°C. Importantly, G-AgNPs showed remarkable antimicrobial activity against Gram-negative pathogens- E. coli and P. aeruginosa with MIC values of 0.1 and 4 μg/mL and MBC values of 1 and 8 μg/mL, respectively. This level of antimicrobial activity is superior to other AgNPs reported in the literature.
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Affiliation(s)
- Priyanka Singh
- The Novo Nordisk Foundation, Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Ivan Mijakovic
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
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Yaseen B, Gangwar C, Kumar I, Sarkar J, Naik RM. Detailed Kinetic and Mechanistic Study for the Preparation of Silver Nanoparticles by a Chemical Reduction Method in the Presence of a Neuroleptic Agent (Gabapentin) at an Alkaline pH and its Characterization. ACS OMEGA 2022; 7:5739-5750. [PMID: 35224334 PMCID: PMC8867805 DOI: 10.1021/acsomega.1c05499] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 01/27/2022] [Indexed: 05/05/2023]
Abstract
For the very first time, a detailed kinetic study for the preparation of silver nanoparticles (silver NPs) by neuroleptic agent gabapentin (GBP) in the absence of a stabilizer has been reported in this investigation. This paper is devoted to the preparation of silver nanoparticles by a chemical reduction method in which gabapentin acts as both a reductant and a stabilizer, and AgNO3 is used as a source of Ag+ ions and NaOH for maintaining the alkaline medium. A UV-visible spectrophotometer is used to monitor the progress of the reaction kinetics in an aqueous medium by changing the concentration of different variables such as AgNO3, NaOH, and gabapentin at 40 °C. It is found that the reaction rate follows a pseudo-first-order reaction. The thermodynamic activation parameters were also studied at five different temperatures (303, 308, 313, 318, and 323 K) and used in the support of the proposed mechanistic scheme for the formation of silver nanoparticles. The prepared silver nanoparticles were characterized using different techniques: UV-visible spectrophotometry, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, and powder X-ray diffraction. The average particle size was observed in the range of 5-45 nm.
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Vieira TO, Ricci-Junior E, de Barros AODS, Rebelo Alencar LM, Ferreira MRS, de Jesus Andreoli Pinto T, Santos-Oliveira R, de Holanda Saboya Souza D. Tertiary Nanosystem Composed of Graphene Quantum Dots, Levofloxacin and Silver Nitrate for Microbiological Control. RECENT ADVANCES IN DRUG DELIVERY AND FORMULATION 2022; 16:234-240. [PMID: 35850654 DOI: 10.2174/2667387816666220715121107] [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: 02/03/2022] [Revised: 05/23/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Infectious diseases have the highest mortality rate in the world and these numbers are associated with scarce and/or ineffective diagnosis and bacterial resistance. Currently, with the development of new pharmaceutical formulations, nanotechnology is gaining prominence. METHODS Nanomicelles were produced by ultrasonication. The particle size and shape were evaluated by scanning electron microscopy and confirmed by dynamic light scattering, also thermogravimetric analysis was performed to evaluate the thermal stability. Finally, antibacterial activity has been performed. RESULTS The results showed that a rod-shaped nanosystem, with 316.1 nm and PDI of 0.243 was formed. The nanosystem was efficient against Staphylococcus aureus, Pseudomonas aeruginosa, and Bacillus subtilis subsp. spizizenii with MIC inferior to 0.98 and a synergistic effect between silver graphene quantum dots and levofloxacin was observed. CONCLUSION The nanosystem produced may rise as a promising agent against the bacterial threat, especially regarding bacterial resistance.
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Affiliation(s)
- Thamires Oliveira Vieira
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Nanoradiopharmacy and Synthesis of New Radiopharmaceuticals, Rio de Janeiro 21941906, Brazil
| | - Eduardo Ricci-Junior
- Federal University of Rio de Janeiro, College of Pharmacy, Galenical Development Laboratory, Rio de Janeiro 21941900, Brazil
| | - Aline Oiveira da Silva de Barros
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Nanoradiopharmacy and Synthesis of New Radiopharmaceuticals, Rio de Janeiro 21941906, Brazil
| | | | - Marcia Regina Spuri Ferreira
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
| | | | - Ralph Santos-Oliveira
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Nanoradiopharmacy and Synthesis of New Radiopharmaceuticals, Rio de Janeiro 21941906, Brazil
- Zona Oeste State University, Laboratory of Nanoradiopharmaceuticals, Rio de Janeiro 23070200, Brazil
| | - Diego de Holanda Saboya Souza
- Institute of Macromolecules Professor Eloísa Mano (IMA), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941900, Brazil
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Singh P, Mijakovic I. Rowan Berries: A Potential Source for Green Synthesis of Extremely Monodisperse Gold and Silver Nanoparticles and Their Antimicrobial Property. Pharmaceutics 2021; 14:pharmaceutics14010082. [PMID: 35056978 PMCID: PMC8781835 DOI: 10.3390/pharmaceutics14010082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 12/17/2021] [Accepted: 12/24/2021] [Indexed: 12/23/2022] Open
Abstract
Rowanberries (Sorbus aucuparia) are omnipresent in Europe. The medicinal importance of rowanberries is widely known and corresponds to the active ingredients present in the fruits, mainly polyphenols, carotenoids, and organic acids. In the current study, we explored rowanberries for the reduction of gold and silver salts into nanoparticles. Rowanberries-mediated gold nanoparticles (RB-AuNPs) formed within 5 s at room temperature, and silver nanoparticles (RB-AgNPs) formed in 20 min at 90 °C. The produced nanoparticles were thoroughly characterized by UV-Vis spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray (EDX), transmission electron microscopy (TEM), dynamic light scattering (DLS), single-particle inductively coupled plasma–mass spectrometry (sp-ICP-MS), thermogravimetric analysis (TGA), Fourier transform-infrared spectroscopy (FT-IR) and matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF). The characterization confirmed that the nanoparticles are highly monodisperse, spherical, stable over long periods, and exhibit a high negative zeta potential values. The produced RB-AuNPs and RB-AgNPs were 90–100 nm and 20–30 nm in size with a thick biological corona layer surrounding them, providing extreme stability but lowering the antimicrobial activity. The antimicrobials study of RB-AgNPs revealed that the nanoparticles have antimicrobial potential with an MBC value of 100 µg/mL against P. aeruginosa and 200 µg/mL against E. coli.
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Affiliation(s)
- Priyanka Singh
- The Novo Nordisk Foundation, Center for Biosustainability, Technical University of Denmark, DK-2800 Kogens Lyngby, Denmark
- Correspondence: (P.S.); (I.M.)
| | - Ivan Mijakovic
- The Novo Nordisk Foundation, Center for Biosustainability, Technical University of Denmark, DK-2800 Kogens Lyngby, Denmark
- Systems and Synthetic Biology Division, Department of Biology and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
- Correspondence: (P.S.); (I.M.)
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Geißler F, Martínez-Cabanas M, Lodeiro P, Achterberg EP. Optimization of hyphenated asymmetric flow field-flow fractionation for the analysis of silver nanoparticles in aqueous solutions. Anal Bioanal Chem 2021; 413:6889-6904. [PMID: 34537865 PMCID: PMC8449749 DOI: 10.1007/s00216-021-03647-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 08/06/2021] [Accepted: 09/02/2021] [Indexed: 11/19/2022]
Abstract
The extensive use of silver nanoparticles (AgNPs) in consumer products, medicine, and industry leads to their release into the environment. Thus, a characterization of the concentration, size, fate, and toxicity of AgNPs under environmental conditions is required. In this study, we present the characterization and optimization of an asymmetric flow field-flow fractionation (AF4) system coupled with UV/Vis spectrophotometer and dynamic light scattering (DLS) detector as a powerful tool for the size separation and multi-parameter characterization of AgNPs in complex matrices. The hyphenated AF4-UV/Vis-DLS system was first characterized using individual injections of the different size fractions. We used electrostatically stabilized AgNPs of 20-, 50-, and 80-nm nominal diameters coated with lipoic acid. We investigated the effect of applied cross-flows, carrier solutions, focus times, and quantity of injected particles on the nature of the AF4 fractograms and on the integrity of the AgNPs. Best size separation of a 1:1 mixture of 20- and 80-nm AgNPs was achieved using cross-flows of 0.5 and 0.7 mL/min with 1 mM NaCl and 0.05% v/v Mucasol as carrier solutions. We also researched the behavior of AgNPs in natural waters using the hyphenated AF4-UV/Vis-DLS system, under determined optimal conditions. Schematic and photograph of the AF4 setup with numbered hardware devices. Dashed lines represent electrical connections; continuous lines represent fluidic connections. For a better overview, not all fluidic connections between pump/6-way valve (2) and the Eclipse AF4 device (3) are shown in the schematic. The fluorescence detector (FL (7)) was not used in the study presented herein.
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Affiliation(s)
- Felix Geißler
- Chemical Oceanography, Marine Biogeochemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - María Martínez-Cabanas
- Chemical Oceanography, Marine Biogeochemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany.
| | - Pablo Lodeiro
- Chemical Oceanography, Marine Biogeochemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
- Department of Chemistry, University of Lleida - AGROTECNIO-CERCA Center, Rovira Roure 191, 25198, Lleida, Spain
| | - Eric P Achterberg
- Chemical Oceanography, Marine Biogeochemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
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30
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Sharma RK, Yadav S, Dutta S, Kale HB, Warkad IR, Zbořil R, Varma RS, Gawande MB. Silver nanomaterials: synthesis and (electro/photo) catalytic applications. Chem Soc Rev 2021; 50:11293-11380. [PMID: 34661205 PMCID: PMC8942099 DOI: 10.1039/d0cs00912a] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In view of their unique characteristics and properties, silver nanomaterials (Ag NMs) have been used not only in the field of nanomedicine but also for diverse advanced catalytic technologies. In this comprehensive review, light is shed on general synthetic approaches encompassing chemical reduction, sonochemical, microwave, and thermal treatment among the preparative methods for the syntheses of Ag-based NMs and their catalytic applications. Additionally, some of the latest innovative approaches such as continuous flow integrated with MW and other benign approaches have been emphasized that ultimately pave the way for sustainability. Moreover, the potential applications of emerging Ag NMs, including sub nanomaterials and single atoms, in the field of liquid-phase catalysis, photocatalysis, and electrocatalysis as well as a positive role of Ag NMs in catalytic reactions are meticulously summarized. The scientific interest in the synthesis and applications of Ag NMs lies in the integrated benefits of their catalytic activity, selectivity, stability, and recovery. Therefore, the rise and journey of Ag NM-based catalysts will inspire a new generation of chemists to tailor and design robust catalysts that can effectively tackle major environmental challenges and help to replace noble metals in advanced catalytic applications. This overview concludes by providing future perspectives on the research into Ag NMs in the arena of electrocatalysis and photocatalysis.
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Affiliation(s)
- Rakesh Kumar Sharma
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Sneha Yadav
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Sriparna Dutta
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Hanumant B Kale
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
| | - Indrajeet R Warkad
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
- Nanotechnology Centre, CEET, VŠB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic
- U. S. Environmental Protection Agency, ORD, Center for Environmental Solutions and Emergency Response Water Infrastructure Division/Chemical Methods and Treatment Branch, 26 West Martin Luther King Drive, MS 483 Cincinnati, Ohio 45268, USA.
| | - Manoj B Gawande
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
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31
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Azmi SNH, Al-Jassasi BMH, Al-Sawafi HMS, Al-Shukaili SHG, Rahman N, Nasir M. Optimization for synthesis of silver nanoparticles through response surface methodology using leaf extract of Boswellia sacra and its application in antimicrobial activity. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:497. [PMID: 34286386 DOI: 10.1007/s10661-021-09301-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
In the present work, leaf extract of Boswellia sacra was used as reductant for synthesis of silver nanoparticles (AgNPs). The variables such as volume of Boswellia sacra leaf extract (1%), volume of silver nitrate (1 mM), and temperature were optimized by response surface methodology via Box-Behnken design for the synthesis of AgNPs. Design-Expert software generated the optimum conditions for the highest yield of silver nanoparticles as 8 mL of 1 mM AgNO3, 8 mL of 1% Boswellia sacra leaf extract, and temperature = 55 °C. The formed AgNPs were isolated and purified by centrifugation process using ethanol/ distilled water. AgNPs were characterized using FTIR, SEM, TEM, EDX, and XRD. AgNPs showed surface plasmon resonance absorption band at 422 nm. XRD pattern indicated the crystalline nature of the particles (diameter 11.17 to 37.50 nm) with face-centered cubic structure. SEM and TEM images highlighted the formation of spherical AgNPs. The energy dispersive spectroscopic spectrum confirmed the presence of elemental silver. The microbial activity of AgNPs was evaluated against bacteria and fungi. Synthesized AgNPs were very effective against Gram-positive E. coli bacterial strains and fungal strains (Penicillium chrysogenum).
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Affiliation(s)
- Syed Najmul Hejaz Azmi
- University of Technology and Applied Sciences, Applied Sciences Department (Chemistry Section), Higher College of Technology Muscat, P. O. Box 74, Al-Khuwair, 133, Sultanate of Oman.
| | - Bushra Mohammed Hamed Al-Jassasi
- University of Technology and Applied Sciences, Applied Sciences Department (Chemistry Section), Higher College of Technology Muscat, P. O. Box 74, Al-Khuwair, 133, Sultanate of Oman
| | - Hiba Mohammed Saif Al-Sawafi
- University of Technology and Applied Sciences, Applied Sciences Department (Chemistry Section), Higher College of Technology Muscat, P. O. Box 74, Al-Khuwair, 133, Sultanate of Oman
| | - Sahar Harib Gharib Al-Shukaili
- University of Technology and Applied Sciences, Applied Sciences Department (Chemistry Section), Higher College of Technology Muscat, P. O. Box 74, Al-Khuwair, 133, Sultanate of Oman
| | - Nafisur Rahman
- Department of Chemistry, Aligarh Muslim University, Uttar Pradesh, Aligarh, 202002, India
| | - Mohd Nasir
- Department of Chemistry, Aligarh Muslim University, Uttar Pradesh, Aligarh, 202002, India
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Naz G, Asghar H, Ramzan M, Arshad M, Ahmed R, Tahir MB, Haq BU, Baig N, Jalil J. High-yield synthesis of silver nanowires for transparent conducting PET films. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2021; 12:624-632. [PMID: 34285865 PMCID: PMC8261274 DOI: 10.3762/bjnano.12.51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
Silver nanowires (AgNWs) with ultrahigh purity and high yield were successfully synthesized by employing a modified facile polyol method using PVP as a capping and stabilizing agent. The reaction was carried out at a moderate temperature of 160 °C under mild stirring for about 3 h. The prepared AgNWs exhibited parallel alignment on a large scale and were characterized by UV-vis spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), and PL spectroscopy. The luminescent AgNWs exhibited red emission, which was accredited to deep holes. The SEM results confirmed the formation of AgNWs of 3.3 to 4.7 µm in length with an average diameter of about 86 nm, that is, the aspect ratio values of the AgNWs exceeded 45. An ink consisting of hydroxyethyl cellulose (HEC) and AgNWs was transferred to polyethylene terephthalate (PET) films by simple mechanical pressing. The PET films retained transparency and flexibility after the ink coating. The maximum transmittance value of as-prepared PET films in the visible region was estimated to be about 92.5% with a sheet resistance value of ca. 20 Ω/sq. This makes the films a potential substitute to commonly used expensive indium tin oxide (ITO) in the field of flexible optoelectronics.
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Affiliation(s)
- Gul Naz
- Institute of Physics, Faculty of Science, The Islamia University of Bahawalpur, Baghdad-ul-Jadid Campus, Bahawalpur 63100, Pakistan
| | - Hafsa Asghar
- Institute of Physics, Faculty of Science, The Islamia University of Bahawalpur, Baghdad-ul-Jadid Campus, Bahawalpur 63100, Pakistan
| | - Muhammad Ramzan
- Institute of Physics, Faculty of Science, The Islamia University of Bahawalpur, Baghdad-ul-Jadid Campus, Bahawalpur 63100, Pakistan
| | - Muhammad Arshad
- Nanosciences and Nanotechnology Department, National Centre for Physics, Quaid-i-Azam University Islamabad, Pakistan
| | - Rashid Ahmed
- Centre for High Energy Physics, The University of Punjab, Lahore, Pakistan
| | - Muhammad Bilal Tahir
- Department of Physics, Khawaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | - Bakhtiar Ul Haq
- Advanced Functional Materials & Optoelectronics Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, Abha 9004, Saudi Arabia
| | - Nadeem Baig
- Center of Research Excellent in Desalination & Water Treatment, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Junaid Jalil
- Institute of Physics, Faculty of Science, The Islamia University of Bahawalpur, Baghdad-ul-Jadid Campus, Bahawalpur 63100, Pakistan
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Kukushkina EA, Hossain SI, Sportelli MC, Ditaranto N, Picca RA, Cioffi N. Ag-Based Synergistic Antimicrobial Composites. A Critical Review. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1687. [PMID: 34199123 PMCID: PMC8306300 DOI: 10.3390/nano11071687] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/15/2021] [Accepted: 06/21/2021] [Indexed: 12/12/2022]
Abstract
The emerging problem of the antibiotic resistance development and the consequences that the health, food and other sectors face stimulate researchers to find safe and effective alternative methods to fight antimicrobial resistance (AMR) and biofilm formation. One of the most promising and efficient groups of materials known for robust antimicrobial performance is noble metal nanoparticles. Notably, silver nanoparticles (AgNPs) have been already widely investigated and applied as antimicrobial agents. However, it has been proposed to create synergistic composites, because pathogens can find their way to develop resistance against metal nanophases; therefore, it could be important to strengthen and secure their antipathogen potency. These complex materials are comprised of individual components with intrinsic antimicrobial action against a wide range of pathogens. One part consists of inorganic AgNPs, and the other, of active organic molecules with pronounced germicidal effects: both phases complement each other, and the effect might just be the sum of the individual effects, or it can be reinforced by the simultaneous application. Many organic molecules have been proposed as potential candidates and successfully united with inorganic counterparts: polysaccharides, with chitosan being the most used component; phenols and organic acids; and peptides and other agents of animal and synthetic origin. In this review, we overview the available literature and critically discuss the findings, including the mechanisms of action, efficacy and application of the silver-based synergistic antimicrobial composites. Hence, we provide a structured summary of the current state of the research direction and give an opinion on perspectives on the development of hybrid Ag-based nanoantimicrobials (NAMs).
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Affiliation(s)
- Ekaterina A. Kukushkina
- Chemistry Department, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy; (E.A.K.); (S.I.H.); (M.C.S.); (N.D.); (R.A.P.)
- CSGI (Center for Colloid and Surface Science), Chemistry Department, University of Bari, via Orabona 4, 70126 Bari, Italy
| | - Syed Imdadul Hossain
- Chemistry Department, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy; (E.A.K.); (S.I.H.); (M.C.S.); (N.D.); (R.A.P.)
- CSGI (Center for Colloid and Surface Science), Chemistry Department, University of Bari, via Orabona 4, 70126 Bari, Italy
| | - Maria Chiara Sportelli
- Chemistry Department, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy; (E.A.K.); (S.I.H.); (M.C.S.); (N.D.); (R.A.P.)
- CSGI (Center for Colloid and Surface Science), Chemistry Department, University of Bari, via Orabona 4, 70126 Bari, Italy
| | - Nicoletta Ditaranto
- Chemistry Department, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy; (E.A.K.); (S.I.H.); (M.C.S.); (N.D.); (R.A.P.)
- CSGI (Center for Colloid and Surface Science), Chemistry Department, University of Bari, via Orabona 4, 70126 Bari, Italy
| | - Rosaria Anna Picca
- Chemistry Department, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy; (E.A.K.); (S.I.H.); (M.C.S.); (N.D.); (R.A.P.)
- CSGI (Center for Colloid and Surface Science), Chemistry Department, University of Bari, via Orabona 4, 70126 Bari, Italy
| | - Nicola Cioffi
- Chemistry Department, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy; (E.A.K.); (S.I.H.); (M.C.S.); (N.D.); (R.A.P.)
- CSGI (Center for Colloid and Surface Science), Chemistry Department, University of Bari, via Orabona 4, 70126 Bari, Italy
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Backx BP, Dos Santos MS, Dos Santos OAL, Filho SA. The Role of Biosynthesized Silver Nanoparticles in Antimicrobial Mechanisms. Curr Pharm Biotechnol 2021; 22:762-772. [PMID: 33530905 DOI: 10.2174/1389201022666210202143755] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 10/29/2020] [Accepted: 11/12/2020] [Indexed: 11/22/2022]
Abstract
Nanotechnology is an area of science in which new materials are developed. The correlation between nanotechnology and microbiology is essential for the development of new drugs and vaccines. The main advantage of combining these areas is to associate the latest technology in order to obtain new ways for solving problems related to microorganisms. This review seeks to investigate nanoparticle formation's antimicrobial properties, primarily when connected to the green synthesis of silver nanoparticles. The development of new sustainable methods for nanoparticle production has been instrumental in designing alternative, non-toxic, energy-friendly, and environmentally friendly routes. In this sense, it is necessary to study silver nanoparticles' green synthesis concerning their antimicrobial properties. Antimicrobial silver nanoparticles' mechanisms demonstrate efficiency to gram-positive bacteria, gram-negative bacteria, fungi, viruses, and parasites. However, attention is needed with the emergence of resistance to these antimicrobials. This article seeks to relate the parameters of green silver- based nanosystems with the efficiency of antimicrobial activity.
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Affiliation(s)
- Bianca P Backx
- Numpex-Bio, Universidade Federal do Rio de Janeiro (UFRJ), Campus Duque de Caxias, Duque de Caxias, Brazil
| | - Mayara S Dos Santos
- Numpex-Bio, Universidade Federal do Rio de Janeiro (UFRJ), Campus Duque de Caxias, Duque de Caxias, Brazil
| | - Otávio A L Dos Santos
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), Santo Andre, Brazil
| | - Sérgio A Filho
- Numpex-Bio, Universidade Federal do Rio de Janeiro (UFRJ), Campus Duque de Caxias, Duque de Caxias, Brazil
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Kuntyi OI, Kytsya АR, Bondarenko AB, Mazur АS, Mertsalo IP, Bazylyak LI. Microplasma synthesis of silver nanoparticles in PVP solutions using sacrificial silver anodes. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-021-04811-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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Montes-Hernandez G, Di Girolamo M, Sarret G, Bureau S, Fernandez-Martinez A, Lelong C, Eymard Vernain E. In Situ Formation of Silver Nanoparticles (Ag-NPs) onto Textile Fibers. ACS OMEGA 2021; 6:1316-1327. [PMID: 33490791 PMCID: PMC7818644 DOI: 10.1021/acsomega.0c04814] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 11/16/2020] [Indexed: 06/12/2023]
Abstract
Silver nanoparticles (Ag-NPs) adhered/inserted on textile fibers have an effective antimicrobial role. However, their release due to low adherence and their fate in the natural settings have been questioned in terms of toxicity level. In order to overcome this recurrent problem of adherence, the in situ formation of Ag-NPs in five textile fibers (cotton (untreated and chemically bleached), sheep's wool, polyamide, and polyester) was assessed. Herein, the fibers were first immersed in a silver ion solution (1 g/L of AgNO3) for ion saturation at room T for 24 h followed by draining fibers and their reimmersion this time in a strong chemical reducing solution (0.25 g/L of NaBH4) at room T for 24 h. This latter step leads to the in situ formation of Ag-NPs where size (5 nm < size < 50 nm), surface covering concentration, and aggregation degree depend on the textile fiber kind as deduced from FESEM images. This simple lab chemical method allows instantaneous in situ formation of Ag-NPs onto fibers without the requirement of additional thermal treatment. Moreover, for natural fibers, the formation of Ag-NPs inside of them is also expected as confirmed from FESEM images in cotton cross sections. In complement, all textile fibers containing Ag-NPs (sheep's wool 10 mg/g > untreated cotton 2.3 mg/g > bleached cotton 1 mg/g > polyamide 0.62 mg/g > polyester 0.28 mg/g) were submitted to interact with strong oxidants in an aqueous media (7.5% v/v of H2O2, 0.5 and 0.05 M of HNO3 and ultrapure water as the control) using flow-through reactor experiments. Here, breakthrough curves reveal that the oxidative dissolution rate (given in mol/g min) of adhered Ag-NPs (ionic release) depends strongly on fiber nature, and nature and concentration of oxidant solution. In summary, this fundamental study suggests that Ag-NPs may be successfully adhered/inserted in natural fibers (wool and cotton) in a safety-design perspective with performant biocide properties as confirmed by using Bacillus subtilis.
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Affiliation(s)
- German Montes-Hernandez
- Univ.
Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, 38000 Grenoble, France
| | - Mahaut Di Girolamo
- Univ.
Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, 38000 Grenoble, France
| | - Géraldine Sarret
- Univ.
Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, 38000 Grenoble, France
| | - Sarah Bureau
- Univ.
Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, 38000 Grenoble, France
| | | | - Cécile Lelong
- BIG,
LCBM, ProMD, UMR CNRS-CEA-UGA, 38054 Grenoble, France
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Das C, Paul SS, Saha A, Singh T, Saha A, Im J, Biswas G. Silver-Based Nanomaterials as Therapeutic Agents Against Coronaviruses: A Review. Int J Nanomedicine 2020; 15:9301-9315. [PMID: 33262589 PMCID: PMC7695609 DOI: 10.2147/ijn.s280976] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 10/30/2020] [Indexed: 12/13/2022] Open
Abstract
Since the identification of the first human coronavirus in the 1960s, a total of six coronaviruses that are known to affect humans have been identified: 229E, OC43, severe acute respiratory syndrome coronavirus (SARS-CoV), NL63, HKU1, and Middle East respiratory syndrome coronavirus (MERS-CoV). Presently, the human world is affected by a novel version of the coronavirus family known as SARS-CoV-2, which has an extremely high contagion rate. Although the infection fatality rate (IFR) of this rapidly spreading virus is not high (ranging from 0.00% to 1.54% across 51 different locations), the increasing number of infections and deaths has created a worldwide pandemic situation. To provide therapy to severely infected patients, instant therapeutic support is urgently needed and the repurposing of already approved drugs is presently in progress. In this regard, the development of nanoparticles as effective transporters for therapeutic drugs or as alternative medicines is highly encouraged and currently needed. The size range of the viruses is within 60-140 nm, which is slightly larger than the diameters of nanoparticles, making nanomaterials efficacious tools with antiviral properties. Silver-based nanomaterials (AgNMs) demonstrate antimicrobial and disinfectant effects mostly by generating reactive oxygen species (ROS) and are presently considered as a versatile tool for the treatment of COVID-19 patients. Other metal-based nanoparticles have been primarily reported as delivery agents or surface modifying agents, vaccine adjuvant against coronavirus. The present review summarizes and discusses the possible effectiveness of various surface-modified AgNMs against animal coronaviruses and presents a concept for AgNM-based therapeutic treatment of SARS-CoV-2 in the near future.
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Affiliation(s)
- Chanchal Das
- Department of Chemistry, Cooch Behar Panchanan Barma University, Cooch Behar, West Bengal736101, India
| | - Subha Sankar Paul
- Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore637551, Singapore
| | - Arighna Saha
- Department of Chemistry, Cooch Behar Panchanan Barma University, Cooch Behar, West Bengal736101, India
| | - Tejinder Singh
- Department of Electronic Materials and Devices Engineering, Soonchunhyang University, Asan31538, Republic of Korea
| | - Abhijit Saha
- Chemistry Department, UGC-DAE Consortium for Scientific Research, Kolkata700106, India
| | - Jungkyun Im
- Department of Electronic Materials and Devices Engineering, Soonchunhyang University, Asan31538, Republic of Korea
- Department of Chemical Engineering, Soonchunhyang University, Asan31538, Republic of Korea
| | - Goutam Biswas
- Department of Chemistry, Cooch Behar Panchanan Barma University, Cooch Behar, West Bengal736101, India
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Hernández-Montelongo J, Fernández-Fierro C, Benito-Gómez N, Romero-Sáez M, Parodi J, Carmona ER, Recio-Sánchez G. Hybrid porous silicon/green synthetized Ag microparticles as potential carries for Ag nanoparticles and drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111183. [DOI: 10.1016/j.msec.2020.111183] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/03/2020] [Accepted: 06/10/2020] [Indexed: 02/07/2023]
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ERKOC P. Sodium Borohydride and Essential Oils as Reducing Agents for the Chemically and Green Synthesis of Silver Nanoparticles: A Comparative Analysis. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2020. [DOI: 10.18596/jotcsa.737566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Pandey VK, Upadhyay SN, Mishra PK. Light-induced synthesis of silver nanoparticles using Ocimum tenuiflorum extract: Characterisation and application. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820936511] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Stable silver nanoparticles of various sizes are synthesised using the aqueous extract of Tulsi ( Ocimum tenuiflorum) as the reducing agent as well as a stabilising agent under the influence of light of wavelength ranging from 200 to 900 nm. The formation of silver nanoparticles is monitored using a UV-Visible spectrophotometer and the particle shape, size and stability are analysed using scanning electron microscopy, dynamic light scattering and zeta potential measurement techniques. It is observed that the size of the silver nanoparticles decreases on increasing the wavelength of irradiating light. The silver nanoparticles show antimicrobial activity against gram-positive ( Bacillus subtilis), as well as gram-negative ( Escherichia coli) bacteria. The antimicrobial activity shows an inverse relationship with the size of the silver nanoparticles. The bio-synthesised silver nanoparticles are successfully embedded in a polymeric film to act as an active antimicrobial film that can potentially release the active constituents.
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Affiliation(s)
- Vivek Kumar Pandey
- Department of Chemical Engineering & Technology, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Siddh Nath Upadhyay
- Department of Chemical Engineering & Technology, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Pradeep Kumar Mishra
- Department of Chemical Engineering & Technology, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
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Madhyastha H, Madhyastha R, Thakur A, Kentaro S, Dev A, Singh S, Chandrashekharappa R B, Kumar H, Acevedo O, Nakajima Y, Daima HK, Aradhya A, Nagaraj P N, Maruyama M. c-Phycocyanin primed silver nano conjugates: Studies on red blood cell stress resilience mechanism. Colloids Surf B Biointerfaces 2020; 194:111211. [PMID: 32615521 DOI: 10.1016/j.colsurfb.2020.111211] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/04/2020] [Accepted: 06/20/2020] [Indexed: 12/20/2022]
Abstract
Green synthesis of metal-encased nutraceutical nano-hybrids has been a target for research over the last few years. In the present investigation, we have reported temperature dependent facile synthesis of silver nanoparticles using FDA approved c phycocyanin (cPC). The cPC conjugated silver nanoparticles (AgcPCNPs) were characterized by TEM, Zeta Potential, UV-vis, XPS, FTIR, and CD Spectroscopy. The temperature optimization studies suggested the synthesis of stable AgcPCNPs at 40 °C while at higher temperature system shows aggregated appearance. Molecular docking studies predicted the exclusive interaction of C, D, I, and J chains of cPC with the surface of AgNPs. Moreover, AgcPCNPs significantly (p < 0.1 %) counteract the toxic nature of AgNPs on red blood cell by measuring parameters like total RBC count, % hemolysis, % hematocrit, coagulation time, pH, electrolyte concentrations and degree of blood cell lipid peroxidation by the anti-oxidation mechanism. Skin fibroblast in vitro cell migration result suggeststhat AgcPCNPs enhanced the degree of cell movement towards the wound area. Data obtained collectively demonstrate that AgcPCNPs can be a better agent in the dermal wound healing with reduced toxicity with the bi-phasic advantage of cPC as a wound healer and Ag nano-metal as an anti-bacterial agent.
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Affiliation(s)
- Harishkumar Madhyastha
- Department of Applied Physiology, School of Medicine, University of Miyazaki, Miyazaki, 889 1692, Japan.
| | - Radha Madhyastha
- Department of Applied Physiology, School of Medicine, University of Miyazaki, Miyazaki, 889 1692, Japan
| | - Abhishek Thakur
- Department of Chemistry, University of Miami, Coral Gables, FL, 33146, United States
| | - Sakai Kentaro
- Center for Collaborative Research and Community Corporation, Division of Materials Research, University of Miyazaki, Miyazaki, 889 2192, Japan
| | - Abhimanyu Dev
- Department of Pharmaceutical Science and Technology, Birla Institute of Technology Mesra, Ranchi, 835215, India
| | - Sneha Singh
- Department of Bioengineering, Birla Institute of Technology Mesra, Ranchi, 835215, India
| | - Bistivalli Chandrashekharappa R
- Department of Pharmaceutical Chemistry, NGSM Institute of Pharmaceutical Sciences, Nitte (Deemed to be) University, Paneer Campus, Mangaluru, 575018, Karnataka, India
| | - Hemanth Kumar
- Department of Pharmaceutical Chemistry, NGSM Institute of Pharmaceutical Sciences, Nitte (Deemed to be) University, Paneer Campus, Mangaluru, 575018, Karnataka, India
| | - Orlando Acevedo
- Department of Chemistry, University of Miami, Coral Gables, FL, 33146, United States
| | - Yuichi Nakajima
- Department of Applied Physiology, School of Medicine, University of Miyazaki, Miyazaki, 889 1692, Japan
| | - Hemant Kumar Daima
- Amity Center for Nanobiotechnology and Nanomedcine (ACNN), Amity Institute of Biotechnology, Amity University, Rajasthan, Kant-Kalwar, Jaipur-Delhi Highway, Jaipur, 303002, India
| | - Akhela Aradhya
- Amity Center for Nanobiotechnology and Nanomedcine (ACNN), Amity Institute of Biotechnology, Amity University, Rajasthan, Kant-Kalwar, Jaipur-Delhi Highway, Jaipur, 303002, India
| | - Navya Nagaraj P
- Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Erode, 638401, Tamilnadu, India
| | - Masugi Maruyama
- Department of Applied Physiology, School of Medicine, University of Miyazaki, Miyazaki, 889 1692, Japan
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42
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Green Synthesis of Silver Nanoparticles by Using Sansevieria Roxburghiana, Their Characterization and Antibacterial Activity. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01567-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Weerasinghe J, Li W, Zhou R, Zhou R, Gissibl A, Sonar P, Speight R, Vasilev K, Ostrikov K(K. Bactericidal Silver Nanoparticles by Atmospheric Pressure Solution Plasma Processing. NANOMATERIALS 2020; 10:nano10050874. [PMID: 32369954 PMCID: PMC7279381 DOI: 10.3390/nano10050874] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 01/10/2023]
Abstract
Silver nanoparticles have applications in plasmonics, medicine, catalysis and electronics. We report a simple, cost-effective, facile and reproducible technique to synthesise silver nanoparticles via plasma-induced non-equilibrium liquid chemistry with the absence of a chemical reducing agent. Silver nanoparticles with tuneable sizes from 5.4 to 17.8 nm are synthesised and characterised using Transmission Electron Microscopy (TEM) and other analytic techniques. A mechanism for silver nanoparticle formation is also proposed. The antibacterial activity of the silver nanoparticles was investigated with gram-positive and gram-negative bacteria. The inhibition of both bacteria types was observed. This is a promising alternative method for the instant synthesis of silver nanoparticles, instead of the conventional chemical reduction route, for numerous applications.
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Affiliation(s)
- Janith Weerasinghe
- School of Chemistry and Physics, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (P.S.); (K.O.)
- Centre for Materials Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia
- Correspondence: ; Tel.: +61-481979488
| | - Wenshao Li
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (W.L.); (A.G.); (R.S.)
| | - Rusen Zhou
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane 4000, Queensland, Australia;
| | - Renwu Zhou
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney 2006, New South Wales, Australia;
| | - Alexander Gissibl
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (W.L.); (A.G.); (R.S.)
| | - Prashant Sonar
- School of Chemistry and Physics, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (P.S.); (K.O.)
- Centre for Materials Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia
| | - Robert Speight
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (W.L.); (A.G.); (R.S.)
| | - Krasimir Vasilev
- School of Engineering, University of South Australia, Adelaide 5001, South Australia, Australia;
| | - Kostya (Ken) Ostrikov
- School of Chemistry and Physics, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (P.S.); (K.O.)
- Centre for Materials Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia
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44
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Duval RE, Gouyau J, Lamouroux E. Limitations of Recent Studies Dealing with the Antibacterial Properties of Silver Nanoparticles: Fact and Opinion. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1775. [PMID: 31847133 PMCID: PMC6956306 DOI: 10.3390/nano9121775] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/07/2019] [Accepted: 12/11/2019] [Indexed: 01/17/2023]
Abstract
Due to the constant increase in the number of infectious diseases and the concomitant lack of treatment available, metallic nanoparticles (e.g., silver nanoparticles) have been of particular interest in the last decades. Indeed, several studies suggest that silver nanoparticles have valuable antimicrobial activities, especially against bacteria, which may lead us to think that these nanoparticles may one day be an attractive therapeutic option for the treatment of bacterial infections. Unfortunately, when we look a little closer to these studies, we can see a very great heterogeneity (e.g., in the study design, in the synthetic process of nanoparticles, in the methods that explore the antibacterial properties of nanoparticles and in the bacteria chosen) making cross-interpretation between these studies impossible, and significantly limiting the interest of silver nanoparticles as promising antibacterial agents. We have selected forty-nine international publications published since 2015, and propose to discuss, not the results obtained, but precisely the different methodologies developed in these publications. Through this discussion, we highlighted the aspects to improve, or at least to homogenize, in order to definitively establish the interest of silver nanoparticles as valuable antibacterial agents.
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Affiliation(s)
- Raphaël E. Duval
- Université de Lorraine, CNRS, L2CM, F-54000 Nancy, France;
- ABC Platform, Faculté de Pharmacie, F-54505 Vandœuvre-lès-Nancy, France
| | - Jimmy Gouyau
- Université de Lorraine, CNRS, L2CM, F-54000 Nancy, France;
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Prosposito P, Burratti L, Bellingeri A, Protano G, Faleri C, Corsi I, Battocchio C, Iucci G, Tortora L, Secchi V, Franchi S, Venditti I. Bifunctionalized Silver Nanoparticles as Hg 2+ Plasmonic Sensor in Water: Synthesis, Characterizations, and Ecosafety. NANOMATERIALS 2019; 9:nano9101353. [PMID: 31547209 PMCID: PMC6835846 DOI: 10.3390/nano9101353] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/13/2019] [Accepted: 09/16/2019] [Indexed: 12/22/2022]
Abstract
In this work, hydrophilic silver nanoparticles (AgNPs), bifunctionalized with citrate (Cit) and L-cysteine (L-cys), were synthesized. The typical local surface plasmon resonance (LSPR) at λ max = 400 nm together with Dynamic Light Scattering (DLS) measurements (<2RH> = 8 ± 1 nm) and TEM studies (Ø = 5 ± 2 nm) confirmed the system nanodimension and the stability in water. Molecular and electronic structures of AgNPs were investigated by FTIR, SR-XPS, and NEXAFS techniques. We tested the system as plasmonic sensor in water with 16 different metal ions, finding sensitivity to Hg2+ in the range 1–10 ppm. After this first screening, the molecular and electronic structure of the AgNPs-Hg2+ conjugated system was deeply investigated by SR-XPS. Moreover, in view of AgNPs application as sensors in real water systems, environmental safety assessment (ecosafety) was performed by using standardized ecotoxicity bioassay as algal growth inhibition tests (OECD 201, ISO 10253:2006), coupled with determination of Ag+ release from the nanoparticles in fresh and marine aqueous exposure media, by means of ICP-MS. These latest studies confirmed low toxicity and low Ag+ release. Therefore, these ecosafe AgNPs demonstrate a great potential in selective detection of environmental Hg2+, which may attract a great interest for several biological research fields.
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Affiliation(s)
- Paolo Prosposito
- Department of Industrial Engineering and INSTM, University of Rome Tor Vergata, via del Politecnico 1, 00133 Rome, Italy.
- Center for Regenerative Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy.
| | - Luca Burratti
- Department of Industrial Engineering and INSTM, University of Rome Tor Vergata, via del Politecnico 1, 00133 Rome, Italy.
| | - Arianna Bellingeri
- Department of Physical, Earth and Environmental Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy.
| | - Giuseppe Protano
- Department of Physical, Earth and Environmental Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy.
| | - Claudia Faleri
- Department of Life Sciences, via Mattioli 4, 53100 Siena, Italy.
| | - Ilaria Corsi
- Department of Physical, Earth and Environmental Sciences, University of Siena, Via Mattioli 4, 53100 Siena, Italy.
| | - Chiara Battocchio
- Department of Sciences, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy.
| | - Giovanna Iucci
- Department of Sciences, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy.
| | - Luca Tortora
- Department of Sciences, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy.
- Surface Analysis Laboratory INFN Roma Tre, via della Vasca Navale 84, 00146 Rome, Italy.
| | - Valeria Secchi
- Department of Sciences, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy.
| | - Stefano Franchi
- Elettra-Sincrotrone Trieste S.c.p.A., Strada Statale 14, km 163.5, 34149 Basovizza Trieste, Italy.
| | - Iole Venditti
- Department of Sciences, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy.
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Gupta K, Chhibber S. Biofunctionalization of Silver Nanoparticles With Lactonase Leads to Altered Antimicrobial and Cytotoxic Properties. Front Mol Biosci 2019; 6:63. [PMID: 31448285 PMCID: PMC6691173 DOI: 10.3389/fmolb.2019.00063] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 07/16/2019] [Indexed: 12/25/2022] Open
Abstract
Background: N-acylated homoserine lactone lactonase which cleave the Acyl homoserine lactone molecules produced by biofilm-forming pathogens and silver nano-particles (AgNPs), are known for their antibacterial effect against several Gram-positive and Gram-negative bacteria. In this study, AgNPs were coated with N-acylated homoserine lactonase protein (AgNPs-AiiA) isolated from Bacillus sp. ZA12. Results: The AgNPs-AiiA complex was characterized by UV-visible spectra, Dynamic light Scattering, Fourier transform infrared spectroscopy (FTIR), and Field Emission Scanning Electron Microscope (Fe-SEM). The synthesized nano-particles were found to be spherical in shape and had an approximate size of 22.4 nm. Treatment with AiiA coated AgNPs showed a significant reduction in exopolysaccharide production, metabolic activity, cell surface hydrophobicity of bacterial cells, and anti-biofilm activity against multidrug-resistant K. pneumoniae as compared to treatment with AiiA protein and neat AgNPs. AgNPs-AiiA complex exhibited potent antibiofilm activity at sub-optimal concentration of 14.4 μg/mL without being harmful to the macrophages and to the various tissues including kidney, liver, spleen and lungs of BALB/c mice upon intra-venous administration. Conclusion: It is concluded that at a concentration of 14.4 μg/mL, AgNPs coated with AiiA kill bacteria without harming the host tissue and provides a suitable template to design novel anti-biofilm drug to circumvent the issue of drug resistance.
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Affiliation(s)
| | - Sanjay Chhibber
- Department of Microbiology, Panjab University, Chandigarh, India
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47
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Lin W, Huang K, Li Y, Qin Y, Xiong D, Ling J, Yi G, Tang Z, Lin J, Huang Y, Yang C, Wang J. Facile In Situ Preparation and In Vitro Antibacterial Activity of PDMAEMA-Based Silver-Bearing Copolymer Micelles. NANOSCALE RESEARCH LETTERS 2019; 14:256. [PMID: 31352529 PMCID: PMC6661048 DOI: 10.1186/s11671-019-3074-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/04/2019] [Indexed: 06/10/2023]
Abstract
Well-defined polymer micelles with core-shell structure are good delivery platform for stabilizing silver nanoparticles (AgNPs) in the field of antimicrobials targeting diseases. The rational construction of the polymer structure, an efficient, facile, and green preparation approach, and comprehensive exploration of the derived AgNPs are necessary, such as size, particle stability, antibacterial activity, and other properties. Herein, we designed and assessed the in vitro antimicrobial activity of AgNPs-decorated copolymer micelles with different copolymer topologies. First, linear or four-arm star triblock copolymers with the similar molecular weight and degree of polymerization were obtained, which consisted of DMAEMA for in situ reduction of silver ions to form AgNPs without external reducing agent. HEMA and PEGMA in micellar shell gave an enhanced stability of AgNPs during blood circulation. The combination of computational modeling and experimental results indicated that both types of micelles could fabricate AgNPs with monodisperse and spherical morphology. Star copolymer micelles stabilized AgNPs had smaller average size, better stability, and higher antibacterial activity than those with linear structure, which may due to higher stability of micelles from star copolymers. Furthermore, the cytotoxicity evaluation test showed that the achieved linear or star copolymers micelles stabilized AgNPs had good biocompatibility. This work provides a facile and universal approach in the rational design of micelles stabilized AgNPs with suitable topology for fighting against a wide range of bacterial infections.
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Affiliation(s)
- Wenjing Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Kaihang Huang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Yanzhe Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Yanlin Qin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Di Xiong
- School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Jiabao Ling
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Guobin Yi
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Zilun Tang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Jinglian Lin
- School of Bioscience & Bioengineering, South China University of Technology, Guangzhou, 510640, People's Republic of China
| | - Yunwei Huang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Chufen Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China.
| | - Jufang Wang
- School of Bioscience & Bioengineering, South China University of Technology, Guangzhou, 510640, People's Republic of China.
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48
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Lagashetty A, Pattar A, Ganiger SK. Synthesis, characterization and antibacterial study of Ag doped magnesium ferrite nanocomposite. Heliyon 2019; 5:e01760. [PMID: 31193682 PMCID: PMC6538970 DOI: 10.1016/j.heliyon.2019.e01760] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 02/28/2019] [Accepted: 05/14/2019] [Indexed: 11/07/2022] Open
Abstract
Nanomaterials are attracted a great deal of attention from scientific community due its unique properties and applications. The small size ferrites have opened up the door for intensive research to utilize their properties for biomedical applications. Ferrite nanomaterials like MgFe2O4 and its silver doped nanocomposites (Ag- MgFe2O4) have been prepared using solid state combustion method using polyvinyl alcohol (PVA) as a fuel. The structure of as prepared ferrites and its silver doped nanocomposites were characterized using X-ray diffraction (XRD) tool and morphology by Scanning Electron Micrograph (SEM) tool respectively. Presence of the metals in the ferrite and its composite was confirmed by EDX pattern. Bonding nature in the composite is well studied by Fourier transform infrared (FT-IR) tool. Antibacterial activity study of the nanocomposite is carried out against various bacteria. Ag doped magnesium ferrite shows moderate activity against bacteria.
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Affiliation(s)
- Arunkumar Lagashetty
- Department of Chemistry, Reshmi Degree College, Kalaburagi, 585106, Karnataka, India
| | - Amruta Pattar
- Department of Nanotechnology, Regional Research Centre, VTU, Belagavi, Karnataka, India
| | - Sangappa K. Ganiger
- Department of Physics, Government Engineering College, Raichur, 584135, Karnataka, India
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49
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Barbosa ACMS, Silva LPC, Ferraz CM, Tobias FL, de Araújo JV, Loureiro B, Braga GMAM, Veloso FBR, Soares FEDF, Fronza M, Braga FR. Nematicidal activity of silver nanoparticles from the fungus Duddingtonia flagrans. Int J Nanomedicine 2019; 14:2341-2348. [PMID: 31040660 PMCID: PMC6452826 DOI: 10.2147/ijn.s193679] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Helminth parasites cause morbidity and mortality in both humans and animals. Most anthelmintic drugs used in the treatment of parasitic nematode infections act on target proteins or regulate the electrical activity of neurons and muscles. In this way, it can lead to paralysis, starvation, immune attack, and expulsion of the worm. However, current anthelmintics have some limitations that include a limited spectrum of activity across species and the threat of drug resistance, which highlights the need for new drugs for human and veterinary medicine. Purpose Present study has been conducted to determine the anthelmintic activity of silver nanoparticles (AgNPs) synthesized from the extract of nematophagous fungus, Duddingtonia flagrans, on the infecting larvae of Ancylostoma caninum (L3). Methods The nanoparticles were characterized by visual, ultraviolet, Fourier-transform infrared spectroscopy, transmission electron microscopy (TEM) analysis, and X-ray diffraction. The in vitro study was based on experiments to inhibit the motility of infective larvae (L3), and the ultrastructural analysis of the nematode was performed by images obtained by TEM. Results The XRD studies revealed the crystalline nature of the nanoparticles, and FTIR results implied that AgNPs were successfully synthesized and capped with compounds present in the extract. The results showed that the green synthesis of AgNPs exhibited nematicidal activity, being the only ones capable of penetrating the cuticle of the larvae, causing changes in the tegmentum, and consequently, the death of the nematode. Conclusion The extract of the fungus D. flagrans is able to synthesize AgNP and these have a nematicidal action.
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Affiliation(s)
| | - Laryssa Pinheiro Costa Silva
- Parasitology and Biological Control Laboratory, Universidade Vila Velha, Vila Velha, Brazil, .,Morphology Department, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Carolina Magri Ferraz
- Parasitology and Biological Control Laboratory, Universidade Vila Velha, Vila Velha, Brazil,
| | - Fernando Luiz Tobias
- Parasitology and Biological Control Laboratory, Universidade Vila Velha, Vila Velha, Brazil,
| | | | - Barbara Loureiro
- Parasitology and Biological Control Laboratory, Universidade Vila Velha, Vila Velha, Brazil,
| | | | | | | | - Marcio Fronza
- Department of Pharmaceutical Sciences, Universidade Vila Velha, Brazil
| | - Fabio Ribeiro Braga
- Parasitology and Biological Control Laboratory, Universidade Vila Velha, Vila Velha, Brazil,
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50
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Cheng ZQ, Li ZW, Xu JH, Yao R, Li ZL, Liang S, Cheng GL, Zhou YH, Luo X, Zhong J. Morphology-Controlled Fabrication of Large-Scale Dendritic Silver Nanostructures for Catalysis and SERS Applications. NANOSCALE RESEARCH LETTERS 2019; 14:89. [PMID: 30868364 PMCID: PMC6419638 DOI: 10.1186/s11671-019-2923-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 03/01/2019] [Indexed: 05/22/2023]
Abstract
Highly branched metallic nanostructures, which possess a large amount of catalyst active sites and surface-enhanced Raman scattering (SERS) hot spots owing to their large surface areas, multi-level branches, corners, and edges, have shown potential in various applications including catalysis and SERS. In this study, well-defined dendritic silver (Ag) nanostructures were prepared by a facile and controllable electrochemical deposition strategy. The morphology of Ag nanostructures is controlled by regulating electrodeposition time and concentration of AgNO3 in the electrolyte solution. Compared to conventional Ag nanoparticle films, dendritic Ag nanostructures exhibited larger SERS enhancement ascribed to the numerous hot spots exist in the nanogaps of parallel and vertically stacked multilayer Ag dendrites. In addition, the prepared dendritic Ag nanostructures show 3.2-fold higher catalytic activity towards the reduction of 4-nitrophenol (4-NP) by NaBH4 than the Ag nanoparticle films. The results indicate that the dendritic Ag nanostructures represent a unique bifunctional nanostructure that serves as both efficient catalysts and excellent SERS substrates, which may be further employed as a nanoreactor for in situ investigation and real-time monitoring of catalytic reactions by SERS technique.
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Affiliation(s)
- Zi-Qiang Cheng
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Zhi-Wen Li
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Jing-Han Xu
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Rui Yao
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Zong-Lin Li
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Shan Liang
- Department of Physics, Hunan Normal University, Changsha, 410081 People’s Republic of China
| | - Guang-Ling Cheng
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Yan-Hong Zhou
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Xin Luo
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Jiang Zhong
- School of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang, 330013 People’s Republic of China
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