1
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Highly selective sub-micromolar level colorimetric sensor for lanthanum detection based on l-tyrosine functionalized silver nanoparticles. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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CERYAN A, ELTUĞRAL N. Isotherm and thermodynamic studies on the removal of gelatin-stabilized silver nanoparticles from water by activated carbon. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2022. [DOI: 10.18596/jotcsa.1098891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Gelatin-stabilized silver nanoparticles (AgNPs) with a particle size of 6.9 (±3.2) nm were synthesized and employed in nanoparticle adsorption onto activated carbon (AC). Subsequently, the synthesized AgNPs and the adsorbed nanoparticles onto the AC (AgNP@AC) were characterized by various techniques including UV–Vis spectrophotometry, transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT–IR) and X–ray diffraction (XRD). AgNPs possessed colloidal stability at a wide pH interval ranging between 4 and 13. Adsorption was studied batch-wise as a function of initial nanoparticle concentration (4–14 mg L-1), temperature (298–323 K), pH (4–13) and adsorbent dosage (0.01–0.05 g). Adsorption isotherms were investigated by fitting the data to different isotherm models including Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich (D–R). Error analysis indicated that the adsorption is well described by the Langmuir model with a monolayer adsorption capacity of 10.36 mg g-1 for 0.05 g AC at pH 7 and 323 K. Thermodynamic parameters such as enthalpy (66.77 kJ mol-1), entropy (232.92 J mol-1 K-1), and Gibbs free energy (–8.31 kJ mol-1) indicated that the process is endothermic, favorable and spontaneous through physical interactions.
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3
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Bonetti L, Fiorati A, D’Agostino A, Pelacani CM, Chiesa R, Farè S, De Nardo L. Smart Methylcellulose Hydrogels for pH-Triggered Delivery of Silver Nanoparticles. Gels 2022; 8:298. [PMID: 35621596 PMCID: PMC9140787 DOI: 10.3390/gels8050298] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/05/2022] [Accepted: 05/10/2022] [Indexed: 02/01/2023] Open
Abstract
Infection is a severe complication in chronic wounds, often leading to morbidity or mortality. Current treatments rely on dressings, which frequently contain silver as a broad-spectrum antibacterial agent, although improper dosing can result in severe side effects. This work proposes a novel methylcellulose (MC)-based hydrogel designed for the topical release of silver nanoparticles (AgNPs) via an intelligent mechanism activated by the pH variations in infected wounds. A preliminary optimization of the physicochemical and rheological properties of MC hydrogels allowed defining the optimal processing conditions in terms of crosslinker (citric acid) concentration, crosslinking time, and temperature. MC/AgNPs nanocomposite hydrogels were obtained via an in situ synthesis process, exploiting MC both as a capping and reducing agent. AgNPs with a 12.2 ± 2.8 nm diameter were obtained. MC hydrogels showed a dependence of the swelling and degradation behavior on both pH and temperature and a noteworthy pH-triggered release of AgNPs (release ~10 times higher at pH 12 than pH 4). 1H-NMR analysis revealed the role of alkaline hydrolysis of the ester bonds (i.e., crosslinks) in governing the pH-responsive behavior. Overall, MC/AgNPs hydrogels represent an innovative platform for the pH-triggered release of AgNPs in an alkaline milieu.
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Affiliation(s)
- Lorenzo Bonetti
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
| | - Andrea Fiorati
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Agnese D’Agostino
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Carlo Maria Pelacani
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
| | - Roberto Chiesa
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Silvia Farè
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
| | - Luigi De Nardo
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy; (A.F.); (A.D.); (C.M.P.); (R.C.); (S.F.); (L.D.N.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Florence, Italy
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Zheltonozhskaya T, Permyakova N, Kravchenko O, Maksin V, Nessin S, Klepko V, Klymchuk D. Polymer/inorganic hybrids containing silver nanoparticles and their activity in the disinfection of fish aquariums/ponds. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1811318] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- T.B. Zheltonozhskaya
- Institute of Macromolecular Science, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - N.M. Permyakova
- Institute of Macromolecular Science, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - O.O. Kravchenko
- Department of Analytical and Bioinorganic Chemistry and Water Quality, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
| | - V.I. Maksin
- Department of Analytical and Bioinorganic Chemistry and Water Quality, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
| | - S.D. Nessin
- Institute of Macromolecular Science, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - V.V. Klepko
- Institute of Macromolecular Science, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - D.O. Klymchuk
- Institute of Botany, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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Demchenko AG, Sadykova VS, Lyundup AV, Sedyakina NE, Gromovykh TI, Feldman NB, Ananyan MA, Lutsenko SV. Antimicrobial and Cytotoxic Activity of Silver Nanoparticles Stabilized by Natural Biopolymer Arabinogalactan. INTERNATIONAL JOURNAL OF NANOSCIENCE 2020. [DOI: 10.1142/s0219581x19500297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Silver nanoparticles were synthesized by chemical reduction of silver nitrate using arabinogalactan polysaccharide as a reducing agent and a stabilizer. The average size of nanoparticles, obtained by analyzing TEM-images, was 10.8[Formula: see text]nm; zeta potential [Formula: see text][Formula: see text]mV. A study of the sol by electron diffraction showed that silver in the sample is in metallic form. The resulting preparation of silver nanoparticles showed both antibacterial and antifungal activity. A pronounced antibacterial activity of silver nanoparticles was demonstrated both in relation to conditionally pathogenic gram-positive (Bacillus subtilis and B. coagulans) and gram-negative (Escherichia coli) bacteria. Silver nanoparticles also possess antifungal activity against macromycete Fomitopsis sp., as well as two strains of micromycetes Trichoderma citrinoviride and Fusarium sporotrichioides. Using the methods of light and fluorescence microscopy, MTT-analysis and Real-time cell analysis, the cytotoxic activity of silver nanoparticles was investigated on HepG2 human hepatocellular carcinoma cells. It was demonstrated that nanoparticles cause a suppression of cell metabolic and proliferative activity, as well as dose-dependent induction of cell death (average relative EC[Formula: see text] value was [Formula: see text]g/ml). The preparation of silver nanoparticles stabilized by arabinogalactan can be used in medicine, as a potential antimicrobial and antitumor agent.
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Affiliation(s)
- A. G. Demchenko
- I.M. Sechenov First Moscow State Medical, University of the Ministry of Health of the Russian Federation (Sechenov University), 8-2 Trubetskaya Str., Moscow 119991, Russian Federation
| | - V. S. Sadykova
- Gause Institute of New Antibiotics, 11 Bol’shaya Pirogovskaya Str., Moscow 119021, Russian Federation
| | - A. V. Lyundup
- I.M. Sechenov First Moscow State Medical, University of the Ministry of Health of the Russian Federation (Sechenov University), 8-2 Trubetskaya Str., Moscow 119991, Russian Federation
| | - N. E. Sedyakina
- I.M. Sechenov First Moscow State Medical, University of the Ministry of Health of the Russian Federation (Sechenov University), 8-2 Trubetskaya Str., Moscow 119991, Russian Federation
| | - T. I. Gromovykh
- I.M. Sechenov First Moscow State Medical, University of the Ministry of Health of the Russian Federation (Sechenov University), 8-2 Trubetskaya Str., Moscow 119991, Russian Federation
| | - N. B. Feldman
- I.M. Sechenov First Moscow State Medical, University of the Ministry of Health of the Russian Federation (Sechenov University), 8-2 Trubetskaya Str., Moscow 119991, Russian Federation
| | - M. A. Ananyan
- Nanoindustry Concern JSC, 4-1 Bardina Str., Moscow 119334, Russian Federation
| | - S. V. Lutsenko
- I.M. Sechenov First Moscow State Medical, University of the Ministry of Health of the Russian Federation (Sechenov University), 8-2 Trubetskaya Str., Moscow 119991, Russian Federation
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Yilmaz MT, İspirli H, Taylan O, Dertli E. Synthesis and characterisation of alternan-stabilised silver nanoparticles and determination of their antibacterial and antifungal activities against foodborne pathogens and fungi. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109497] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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7
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FTIR Microspectroscopy for the Assessment of Mycoplasmas in HepG2 Cell Culture. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10113766] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
To assess the presence and absence of mycoplasma contamination in cell culture, Fourier transform infrared (FTIR) microspectroscopy, coupled with multivariate analysis, was deployed to determine the biomolecular changes in hepatocellular carcinoma cells, HepG2, before and after mycoplasma contamination. The contaminated HepG2 cells were treated with antibiotic BM-Cyclin to decontaminate the mycoplasma, and polymerase chain reaction (PCR) was then performed to confirm the presence or the absence of mycoplasma contamination. The contaminated and decontaminated HepG2 cells were analyzed by FTIR microspectroscopy with principal component analysis (PCA) and peak integral area analysis. The results showed that the FTIR spectra of contaminated HepG2 cells demonstrated the alteration in the IR spectra corresponding to the lipid, protein, and nucleic acid regions. PCA analysis distinguished the spectral differences between the groups of mycoplasma-contaminated and -decontaminated cells. The PCA loading plots suggest that lipid and protein are the main contributed molecules for the difference between these two cell groups. Peak integral area analysis illustrated the increase of lipid and nucleic acid and the decrease of protein contents in the contaminated HepG2 cells. FTIR microspectroscopy is, therefore, proven to be a potential tool for assessing mycoplasma removal by monitoring biomolecular alterations in cell culture.
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8
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Studies on green synthesized silver nanoparticles using Abelmoschus esculentus (L.) pulp extract having anticancer (in vitro) and antimicrobial applications. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.04.033] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Biogenic Silver Nanoparticles for Trace Colorimetric Sensing of Enzyme Disrupter Fungicide Vinclozolin. NANOMATERIALS 2019; 9:nano9111604. [PMID: 31726731 PMCID: PMC6915375 DOI: 10.3390/nano9111604] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/06/2019] [Accepted: 11/08/2019] [Indexed: 11/17/2022]
Abstract
We report a novel, simple, efficient, and green protocol for biogenic synthesis of silver nanoparticles (AgNPs) in aqueous solution using clove (Syzygium aromaticum) extract as a reducing and protecting agent. Ultraviolet-visible (UV-Vis) spectroscopy was employed to monitor the localized surface plasmon resonance (LSPR) band of clove extract-derived AgNPs prepared under various conditions. Fourier-transform infrared (FTIR) spectroscopy analysis provided information about the surface interaction of the clove extract with the AgNPs. Ultrahigh-resolution transmission electron microscopy (UHRTEM) results confirmed the formation of spherical, uniformly distributed clove extract-capped AgNPs with sizes in the range of 2–20 nm (average size: 14.4 ± 2 nm). Powder X-ray diffractometry analysis (PXRD) illustrated the formation of pure crystalline AgNPs. These AgNPs were tested as a colorimetric sensor to detect trace amounts of vinclozolin (VIN) by UV-Vis spectroscopy for the first time. The AgNP-based sensor demonstrated very sensitive and selective colorimetric detection of VIN, in the range of 2–16 µM (R2 = 0.997). The developed sensor was green, simple, sensitive, selective, economical, and novel, and could detect trace amounts of VIN with limit of detection (LOD) = 21 nM. Importantly, the sensor was successfully employed for the determination of VIN in real water samples collected from various areas in Turkey.
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10
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Salt crystal growth in interacting drops of a complex biopolymer: Statistical characterization using FESEM images. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.07.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Tarannum N, Divya, Gautam YK. Facile green synthesis and applications of silver nanoparticles: a state-of-the-art review. RSC Adv 2019; 9:34926-34948. [PMID: 35530673 PMCID: PMC9074700 DOI: 10.1039/c9ra04164h] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 10/07/2019] [Indexed: 12/12/2022] Open
Abstract
In the field of nanotechnology, the development of reliable and eco-friendly methods for the synthesis of NPs is crucial. The conventional methods for the synthesis of NPs are costly, toxic, and not ecofriendly. To overcome these issues, natural sources such as plant, bacteria, fungi, and biopolymers have been used to synthesize AgNPs. These natural sources act as reducing and capping agents. The shape, size, and applications of AgNPs are prominently affected by the reaction parameters under which they are synthesized. Accessible distributed data on the synthesis of AgNPs include the impact of different parameters (temperature and pH), characterization techniques (DLS, UV-vis, FTIR, XRD, SEM, TEM and EDX), properties and their applications. This review paper discusses all the natural sources such as plants, bacteria, fungi, and biopolymers that have been used for the synthesis of AgNPs in the last ten years. AgNPs synthesized by green methods have found potential applications in a wide spectrum of areas including drug delivery, DNA analysis and gene therapy, cancer treatment, antimicrobial agents, biosensors, catalysis, SERS and magnetic resonance imaging (MRI). The current limitations and future prospects for the synthesis of inorganic nanoparticles by green methods are also discussed herein.
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Affiliation(s)
- Nazia Tarannum
- Department of Chemistry, Chaudhary Charan Singh University Meerut 250004 India
| | - Divya
- Department of Chemistry, Chaudhary Charan Singh University Meerut 250004 India
| | - Yogendra K Gautam
- Smart Materials and Sensor Laboratory, Department of Physics, Chaudhary Charan Singh University Meerut 250004 India
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12
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GOGOI NISHIGANDHA, HANDIQUE JYOTIREKHAG. Novel protocol for synthesis of 1,4-diiminocurcumin stabilized silver nanoparticles and application as heterogenous recyclable catalyst and antibacterial agent. J CHEM SCI 2019. [DOI: 10.1007/s12039-019-1654-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Paillot P, Farhat W, Becquart F, Vera R, Jegat C, Taha M. Antimicrobial materials based on poly(ethylene‐
co
‐vinyl alcohol) and silver acetate produced by reactive extrusion. J Appl Polym Sci 2019. [DOI: 10.1002/app.47799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Pierrick Paillot
- Université de Lyon Saint‐Etienne France
- CNRS, UMR 5223, Ingénierie des Matériaux Polymères Saint‐Etienne France
- Université Jean Monnet, Faculté des Sciences et TechniquesDepartment of Polymer Chemistry and Engineering Saint‐Etienne France
| | - Wissam Farhat
- Université de Lyon Saint‐Etienne France
- CNRS, UMR 5223, Ingénierie des Matériaux Polymères Saint‐Etienne France
- Université Jean Monnet, Faculté des Sciences et TechniquesDepartment of Polymer Chemistry and Engineering Saint‐Etienne France
| | - Frédéric Becquart
- Université de Lyon Saint‐Etienne France
- CNRS, UMR 5223, Ingénierie des Matériaux Polymères Saint‐Etienne France
- Université Jean Monnet, Faculté des Sciences et TechniquesDepartment of Polymer Chemistry and Engineering Saint‐Etienne France
| | - Ruben Vera
- Université de Lyon, Université Claude Bernard Lyon 1 (CDHL) Villeurbanne France
| | - Corinne Jegat
- Université de Lyon Saint‐Etienne France
- CNRS, UMR 5223, Ingénierie des Matériaux Polymères Saint‐Etienne France
- Université Jean Monnet, Faculté des Sciences et TechniquesDepartment of Polymer Chemistry and Engineering Saint‐Etienne France
| | - Mohamed Taha
- Université de Lyon Saint‐Etienne France
- CNRS, UMR 5223, Ingénierie des Matériaux Polymères Saint‐Etienne France
- Université Jean Monnet, Faculté des Sciences et TechniquesDepartment of Polymer Chemistry and Engineering Saint‐Etienne France
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Aarthi C, Govindarajan M, Rajaraman P, Alharbi NS, Kadaikunnan S, Khaled JM, Mothana RA, Siddiqui NA, Benelli G. Eco-friendly and cost-effective Ag nanocrystals fabricated using the leaf extract of Habenaria plantaginea: toxicity on six mosquito vectors and four non-target species. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:10317-10327. [PMID: 28523613 DOI: 10.1007/s11356-017-9203-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 05/03/2017] [Indexed: 06/07/2023]
Abstract
Recently, the biofabrication of metal nanoparticles has gained wide interest owing to its inherent features such as swift, simplicity, eco-friendliness, and cheaper costs. Different green-reducing agents led to the production of nanoparticles with varying toxicity on insects. In the current study, silver nanoparticles (AgNPs) were successfully synthesized using Habenaria plantaginea leaf extract. Ag nanoparticles were studied by UV-Vis spectroscopy (UV-Vis), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), scanning electron microscopy (SEM) coupled with energy-dispersive spectroscopy (EDS), and transmission electron microscopy (TEM). H. plantaginea extract and AgNPs were tested for mosquito larvicidal activity on Anopheles stephensi, Aedes aegypti, Culex quinquefasciatus, An. subpictus, Ae. albopictus, and Cx. tritaeniorhynchus. LC50 values were 102.51, 111.99, 123.47, 123.96, 136.56, 149.42 μg/ml and 12.23, 13.38, 14.78, 14.37, 15.39, 16.89 μg/ml, respectively. Moreover, H. plantaginea aqueous extract and AgNPs were tested against the non-target species Anisops bouvieri, Diplonychus indicus, Poecilia reticulata, and Gambusia affinis obtaining LC50 values ranging from 831.82 to 36,212.67 μg/ml. Overall, this study showed the effectiveness of H. plantaginea-fabricated nanoparticles on a wide range of important mosquito vectors, highlighting their scarce toxicity on four natural enemies predating mosquito larvae and pupae.
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Affiliation(s)
- Chinnadurai Aarthi
- Department of Zoology, Thiru. Vi. Ka. Government Arts College, Tiruvarur, Tamil Nadu, 610003, India
| | - Marimuthu Govindarajan
- Department of Zoology, Thiru. Vi. Ka. Government Arts College, Tiruvarur, Tamil Nadu, 610003, India.
- Unit of Vector Control, Phytochemistry and Nanotechnology, Department of Zoology, Annamalai University, Annamalainagar, Tamil Nadu, 608 002, India.
| | - Pichaimuthu Rajaraman
- Department of Zoology, Thiru. Vi. Ka. Government Arts College, Tiruvarur, Tamil Nadu, 610003, India
| | - Naiyf S Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Shine Kadaikunnan
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Jamal M Khaled
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Ramzi A Mothana
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. BOX 2457, Riyadh, 11451, Saudi Arabia
| | - Nasir A Siddiqui
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. BOX 2457, Riyadh, 11451, Saudi Arabia
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124, Pisa, Italy.
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Venugopal K, Ahmad H, Manikandan E, Thanigai Arul K, Kavitha K, Moodley MK, Rajagopal K, Balabhaskar R, Bhaskar M. The impact of anticancer activity upon Beta vulgaris extract mediated biosynthesized silver nanoparticles (ag-NPs) against human breast (MCF-7), lung (A549) and pharynx (Hep-2) cancer cell lines. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:99-107. [PMID: 28570910 DOI: 10.1016/j.jphotobiol.2017.05.031] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 05/15/2017] [Accepted: 05/22/2017] [Indexed: 11/27/2022]
Abstract
The present study tried for a phyto-synthetic method of producing silver nanoparticles (Ag-NPs) with size controlled as and eco-friendly route that can lead to their advanced production with decorative tranquil morphology. By inducing temperature fluctuation of the reaction mixture from 25 to 80°C the plasmon resonance band raised slowly which had an ultimate effect on size and shape of Ag-NPs as shown by UV-visible spectroscopy and TEM results. The biosynthesized nanoparticles showed good cytotoxic impact against MCF-7, A549 and Hep2 cells compared to normal cell lines. Compared to control plates, the percentage of cell growth inhibition was found to be high with as concentrations of Ag-NPs becomes more as determined by MTT assay. The AO/EtBr staining observations demonstrated that the mechanism of cell death induced by Ag-NPs was due to apoptosis in cancer cells. These present results propose that the silver nanoparticles (Ag-NPs) may be utilized as anticancer agents for the treatment of various cancer types. However, there is a need for study of in vivo examination of these nanoparticles to find their role and mechanism inside human body. Further, studies we plan to do biomarker fabrication from the green synthesized plant extract nanoparticles like silver, gold and copper nanoparticles with optimized shape and sizes and their enhancement of these noble nanoparticles.
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Affiliation(s)
- K Venugopal
- Dept of Biotechnology, Vels University, Chennai -600117, Tamil Nadu, India.
| | - H Ahmad
- Plant Virology and Molecular Pathology Lab, Division of Plant Pathology, SKUAST-K, Srinagar, India
| | - E Manikandan
- Dept of Physics, TUCAS Campus, Thennangur, -604408, Thiruvalluvar University, Vellore, Tamil Nadu, India.
| | - K Thanigai Arul
- Dept of Physics, AMET University, Kanathur, Chennai -60000, Tamil Nadu, India
| | - K Kavitha
- Dept of Microbiology, Madras Christian College (MCC), Tambaram, Chennai -600059, Tamil Nadu, India
| | - M K Moodley
- School of Chemistry & Physics, University of KwaZulu-Natal (UKZN), Durban 4000, South Africa
| | - K Rajagopal
- Dept of Biotechnology, Vels University, Chennai -600117, Tamil Nadu, India
| | - R Balabhaskar
- Dept of Biochemistry, SRM Arts and Science College, Kattankulathur, Chennai, Tamil Nadu, India
| | - M Bhaskar
- Division of Animal Biotechnology, Dept of Zoology, S.V. University, Tirupati -517502, India
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16
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Development and characterization of anti-inflammatory activity of curcumin-loaded biodegradable microspheres with potential use in intestinal inflammatory disorders. Int J Pharm 2017; 518:86-104. [DOI: 10.1016/j.ijpharm.2016.12.057] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 12/23/2016] [Accepted: 12/24/2016] [Indexed: 12/24/2022]
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17
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Liu C, Shen Q, Zheng W, Lv Y, Chen X, Li X, Zhu Q, Guo X, Ge R, Li C. Poly(anhydride) nanoparticles act as effective adjuvants to elicit a persistent immune response. RSC Adv 2017. [DOI: 10.1039/c7ra11891k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
This research shows that p-OVA nanoparticles composed of poly(anhydride) and OVA have a strong ability to induce an OVA-specific immune response.
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Affiliation(s)
- Caixia Liu
- The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Qiuxai Shen
- The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Wenwen Zheng
- The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Yao Lv
- The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Xinyu Chen
- The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Xiaoheng Li
- The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Qiqi Zhu
- The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Xiaoling Guo
- The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Renshan Ge
- The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
- Wenzhou 325027
- P. R. China
| | - Chao Li
- The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
- Wenzhou 325027
- P. R. China
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18
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Venugopal K, Rather HA, Rajagopal K, Shanthi MP, Sheriff K, Illiyas M, Rather RA, Manikandan E, Uvarajan S, Bhaskar M, Maaza M. Synthesis of silver nanoparticles (Ag NPs) for anticancer activities (MCF 7 breast and A549 lung cell lines) of the crude extract of Syzygium aromaticum. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 167:282-289. [PMID: 28110253 DOI: 10.1016/j.jphotobiol.2016.12.013] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Accepted: 12/05/2016] [Indexed: 11/24/2022]
Abstract
In the present report, silver nanoparticles were synthesized using Piper nigrum extract for in vitro cytotoxicity efficacy against MCF-7 and HEP-2 cells. The silver nanoparticles (AgNPs) were formed within 20min and after preliminarily confirmation by UV-Visible spectroscopy (strong peak observed at ~441nm), they were characterized by using FT-IR and HR-TEM. The TEM images show spherical shape of biosynthesized AgNPs with particle size in the range 5-40nm while as compositional analysis were observed by EDAX. MTT assays were carried out for cytotoxicity of various concentrations of biosynthesized silver nanoparticles and Piper nigrum extract ranging from 10 to 100μg. The biosynthesized silver nanoparticles showed a significant anticancer activity against both MCF-7 and Hep-2 cells compared to Piper nigrum extract which was dose dependent. Our study thus revealed an excellent application of greenly synthesized silver nanoparticles using Piper nigrum. The study further suggested the potential therapeutic use of these nanoparticles in cancer study.
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Affiliation(s)
- K Venugopal
- Department of Biotechnology, Vels University, Chennai, India
| | - H A Rather
- Department of Biotechnology, Vels University, Chennai, India
| | - K Rajagopal
- Department of Biotechnology, Vels University, Chennai, India
| | - M P Shanthi
- Dept of Zoology, Nehru Memorial College, Puthanampatti-621007, Tiruchirappalli, Tamil Nadu, India
| | - K Sheriff
- Dept of Virology, King Institute of Preventive Medicine and Research, Chennai 600032, India
| | - M Illiyas
- Dept of Virology, King Institute of Preventive Medicine and Research, Chennai 600032, India
| | - R A Rather
- Dept of Virology, King Institute of Preventive Medicine and Research, Chennai 600032, India
| | - E Manikandan
- Department of Biotechnology, Vels University, Chennai, India; Dept of Physics & Biochemistry, TUCAS, Thennangur-604408, Thiruvalluvar University, Serkadu, Vellore, India; UNESCO-UNISA AFNET in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO BOX 392, Pretoria, South Africa; Nanosciences African Network (NANO-AFNET), Materials Research Department, iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, Somerset West, PO BOX 722, Western Cape, South Africa.
| | - S Uvarajan
- Dept of Physics & Biochemistry, TUCAS, Thennangur-604408, Thiruvalluvar University, Serkadu, Vellore, India
| | - M Bhaskar
- Dept of Zoology, UGC SAP-DSA-I, Sri Venkateswara University, Tirupati 517502, India
| | - M Maaza
- UNESCO-UNISA AFNET in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, PO BOX 392, Pretoria, South Africa; Nanosciences African Network (NANO-AFNET), Materials Research Department, iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, Somerset West, PO BOX 722, Western Cape, South Africa
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19
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Graft copolymers PVA-g-PAA as effective matrix for formation and stabilization silver nanoparticles. Polym J 2016. [DOI: 10.15407/polymerj.38.03.244] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Maity D, Pattanayak S, Mollick MMR, Rana D, Mondal D, Bhowmick B, Dash SK, Chattopadhyay S, Das B, Roy S, Chakraborty M, Chattopadhyay D. Green one step morphosynthesis of silver nanoparticles and their antibacterial and anticancerous activities. NEW J CHEM 2016. [DOI: 10.1039/c5nj03409d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bioactive sodium cholate stabilized silver nanoparticles and their biomedical applications.
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Affiliation(s)
- Dipanwita Maity
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata 700009
- India
| | | | | | - Dipak Rana
- Department of Chemical and Biological Engineering
- Industrial Membrane Research Institute
- University of Ottawa
- Ottawa
- Canada
| | - Dibyendu Mondal
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata 700009
- India
| | - Biplab Bhowmick
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata 700009
- India
| | - Sandeep Kumar Dash
- Immunology and Microbiology Laboratory
- Department of Human Physiology and Community Health
- Vidyasagar University
- Midnapore-721102
- India
| | - Sourav Chattopadhyay
- Immunology and Microbiology Laboratory
- Department of Human Physiology and Community Health
- Vidyasagar University
- Midnapore-721102
- India
| | - Balaram Das
- Immunology and Microbiology Laboratory
- Department of Human Physiology and Community Health
- Vidyasagar University
- Midnapore-721102
- India
| | - Somenath Roy
- Immunology and Microbiology Laboratory
- Department of Human Physiology and Community Health
- Vidyasagar University
- Midnapore-721102
- India
| | - Mukut Chakraborty
- Department of Chemistry
- West Bengal State University
- Kolkata-700126
- India
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21
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Green Synthesis and Spectroscopic Characterization of Nanoparticles. NANOSCIENCE IN FOOD AND AGRICULTURE 1 2016. [DOI: 10.1007/978-3-319-39303-2_3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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22
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Mechanically stable antimicrobial chitosan–PVA–silver nanocomposite coatings deposited on titanium implants. Carbohydr Polym 2015; 121:37-48. [DOI: 10.1016/j.carbpol.2014.12.027] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 12/02/2014] [Accepted: 12/03/2014] [Indexed: 01/12/2023]
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23
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Synthesis of nano silver on cellulosic denim fabric producing yellow colored garment with antibacterial properties. Carbohydr Polym 2015; 115:568-74. [DOI: 10.1016/j.carbpol.2014.08.100] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 08/16/2014] [Accepted: 08/18/2014] [Indexed: 11/17/2022]
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24
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Sivera M, Kvitek L, Soukupova J, Panacek A, Prucek R, Vecerova R, Zboril R. Silver nanoparticles modified by gelatin with extraordinary pH stability and long-term antibacterial activity. PLoS One 2014; 9:e103675. [PMID: 25098570 PMCID: PMC4123891 DOI: 10.1371/journal.pone.0103675] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 07/01/2014] [Indexed: 02/03/2023] Open
Abstract
The potential for application of any nanoparticles, including silver nanoparticles (AgNPs), is strongly dependent on their stability against aggregation. Therefore, improvement of this parameter is a key task, especially in the case of AgNPs, because a correlation between size and biological activity has been demonstrated. In the present work, a natural stabilizer, gelatin, was investigated for the stabilization of AgNPs in an aqueous dispersion. The particles were prepared via a modified Tollens process, and the gelatin modifier was added prior to the reducing agent. The stability against aggregation of the AgNPs prepared by this method was more than one order of magnitude higher (on the basis of the critical coagulation concentration (CCC)) than that of AgNPs prepared via a similar method but without the assistance of gelatin. Their high stability against aggregation was confirmed over wide pH range (from 2 to 13) in which the particles did not exhibit rapid aggregation; such stability has not been previously reported for AgNPs. Additionally, gelatin not only fulfills the role of a unique stabilizer but also positively influences the modified Tollens process used to prepare the AgNPs. The diameter of the gelatin-modified AgNPs was substantially smaller in comparison to those prepared without gelatin. The polydispersity of the dispersion significantly narrowed. Moreover, the gelatin-stabilized AgNPs exhibited long-term stability against aggregation and maintained high antibacterial activity when stored for several months under ambient conditions.
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Affiliation(s)
- Martin Sivera
- Department of Physical Chemistry, Faculty of Science, Palacky University, Olomouc, Czech Republic
| | - Libor Kvitek
- Department of Physical Chemistry, Faculty of Science, Palacky University, Olomouc, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Olomouc, Czech Republic
| | - Jana Soukupova
- Department of Physical Chemistry, Faculty of Science, Palacky University, Olomouc, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Olomouc, Czech Republic
| | - Ales Panacek
- Department of Physical Chemistry, Faculty of Science, Palacky University, Olomouc, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Olomouc, Czech Republic
| | - Robert Prucek
- Department of Physical Chemistry, Faculty of Science, Palacky University, Olomouc, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Olomouc, Czech Republic
| | - Renata Vecerova
- Department of Microbiology, Faculty of Medicine, Palacky University, Olomouc, Czech Republic
| | - Radek Zboril
- Department of Physical Chemistry, Faculty of Science, Palacky University, Olomouc, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Olomouc, Czech Republic
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25
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Xu F, Padhy H, Al-Dossary M, Zhang G, Behzad AR, Stingl U, Rothenberger A. Synthesis and properties of the metallo-supramolecular polymer hydrogel poly[methyl vinyl ether-alt-mono-sodium maleate]·AgNO3: Ag+/Cu2+ion exchange and effective antibacterial activity. J Mater Chem B 2014; 2:6406-6411. [DOI: 10.1039/c4tb00611a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Rahaman Mollick MM, Bhowmick B, Mondal D, Maity D, Rana D, Dash SK, Chattopadhyay S, Roy S, Sarkar J, Acharya K, Chakraborty M, Chattopadhyay D. Anticancer (in vitro) and antimicrobial effect of gold nanoparticles synthesized using Abelmoschus esculentus (L.) pulp extract via a green route. RSC Adv 2014. [DOI: 10.1039/c4ra07285e] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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27
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Polymer antimicrobial coatings with embedded fine Cu and Cu salt particles. Appl Microbiol Biotechnol 2014; 98:6265-74. [DOI: 10.1007/s00253-014-5670-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 02/28/2014] [Accepted: 03/05/2014] [Indexed: 12/26/2022]
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28
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Liu XH, Cao YY, Peng HY, Qian HS, Yang XZ, Zhang HB. Silica/ultrasmall Ag composite microspheres: facile synthesis, characterization and antibacterial and catalytic performance. CrystEngComm 2014. [DOI: 10.1039/c3ce42372g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Uniform silica/ultrasmall silver composite microspheres have been successfully prepared from silica microspheres and [Ag(NH3)2]+via a hydrothermal process. The as-prepared silica/Ag microspheres exhibit an excellent antibacterial performance towards E. coli.
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Affiliation(s)
- Xin-Hui Liu
- Institute of Smart Biomedical Materials and Device
- School of Medical Engineering
- Hefei University of Technology
- Hefei 230009, PR China
- Department of Chemistry
| | - Yan-Yan Cao
- Institute of Smart Biomedical Materials and Device
- School of Medical Engineering
- Hefei University of Technology
- Hefei 230009, PR China
| | - Huang-Yong Peng
- Institute of Smart Biomedical Materials and Device
- School of Medical Engineering
- Hefei University of Technology
- Hefei 230009, PR China
| | - Hai-Sheng Qian
- Institute of Smart Biomedical Materials and Device
- School of Medical Engineering
- Hefei University of Technology
- Hefei 230009, PR China
| | - Xian-Zhu Yang
- Institute of Smart Biomedical Materials and Device
- School of Medical Engineering
- Hefei University of Technology
- Hefei 230009, PR China
| | - Hong-Bin Zhang
- Institute of Smart Biomedical Materials and Device
- School of Medical Engineering
- Hefei University of Technology
- Hefei 230009, PR China
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29
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Vasylyev S, Damm C, Segets D, Hanisch M, Taccardi N, Wasserscheid P, Peukert W. Synthesis of silver nanoparticles in melts of amphiphilic polyesters. NANOTECHNOLOGY 2013; 24:115604. [PMID: 23449006 DOI: 10.1088/0957-4484/24/11/115604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The current work presents a one-step procedure for the synthesis of amphiphilic silver nanoparticles suitable for production of silver-filled polymeric materials. This solvent free synthesis via reduction of Tollens' reagent as silver precursor in melts of amphiphilic polyesters consisting of hydrophilic poly(ethylene glycol) blocks and hydrophobic alkyl chains allows the production of silver nanoparticles without any by-product formation. This makes them especially interesting for the production of medical devices with antimicrobial properties. In this article the influences of the chain length of the hydrophobic block in the amphiphilic polyesters and the process temperature on the particle size distribution (PSD) and the stability of the particles against agglomeration are discussed. According to the results of spectroscopic and viscosimetric investigations the silver precursor is reduced to elemental silver nanoparticles by a single electron transfer process from the poly(ethylene glycol) chain to the silver ion.
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Affiliation(s)
- S Vasylyev
- Institute of Particle Technology, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
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30
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Xia L, Zhao C, Yan X, Wu Z. High conductivity of polyaniline-silver synthesizedin situby additional reductant. J Appl Polym Sci 2013. [DOI: 10.1002/app.39190] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Maity D, Mollick MMR, Mondal D, Bhowmick B, Bain MK, Bankura K, Sarkar J, Acharya K, Chattopadhyay D. Synthesis of methylcellulose-silver nanocomposite and investigation of mechanical and antimicrobial properties. Carbohydr Polym 2012; 90:1818-25. [PMID: 22944452 DOI: 10.1016/j.carbpol.2012.07.082] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 07/30/2012] [Accepted: 07/31/2012] [Indexed: 10/28/2022]
Abstract
In this paper we reported preparation of methylcellulose-silver nanocomposite films by mixing of aqueous solution of methylcellulose with silver nitrate followed by casting. The silver nanoparticles were generated in methylcellulose matrix through reduction and stabilization by methylcellulose. The surface plasmon band at 412 nm indicated the formation of Ag nanoparticles. The MC-Ag nanocomposite films were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared (FTIR). The X-ray diffraction analysis of synthesized MC-Ag nanocomposite films revealed that metallic silver was present in face centered cubic crystal structure. Average crystallite size of silver nanocrystal was 22.7 nm. The FTIR peaks of as-synthesized MC-Ag nanocomposite fully designated the strong interaction between Ag nanoparticles and MC matrix. Nano-sized silver modified methylcellulose showed enhanced mechanical properties i.e. the introduction of Ag leading to both strengthening and toughening of MC matrix. The methylcellulose-silver nanocomposite films offered excellent antimicrobial activity against various microorganisms.
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Affiliation(s)
- Dipanwita Maity
- Department of Polymer Science and Technology, University College of Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India
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32
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Bankura K, Maity D, Mollick M, Mondal D, Bhowmick B, Bain M, Chakraborty A, Sarkar J, Acharya K, Chattopadhyay D. Synthesis, characterization and antimicrobial activity of dextran stabilized silver nanoparticles in aqueous medium. Carbohydr Polym 2012; 89:1159-65. [DOI: 10.1016/j.carbpol.2012.03.089] [Citation(s) in RCA: 160] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 03/22/2012] [Accepted: 03/29/2012] [Indexed: 10/28/2022]
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33
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Zaheer Z, Rafiuddin. Nucleation and growth kinetics of silver nanoparticles prepared by glutamic acid in micellar media. INT J CHEM KINET 2012. [DOI: 10.1002/kin.20711] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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