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Maršík D, Thoresen PP, Maťátková O, Masák J, Sialini P, Rova U, Tsikourkitoudi V, Christakopoulos P, Matsakas L, Jarošová Kolouchová I. Synthesis and Characterization of Lignin-Silver Nanoparticles. Molecules 2024; 29:2360. [PMID: 38792221 PMCID: PMC11123738 DOI: 10.3390/molecules29102360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
Metal nanoparticle synthesis via environmentally friendly methods is gaining interest for their potential advantages over conventional physico-chemical approaches. Herein, we propose a robust green synthesis route for lignin-modified silver nanoparticles, utilizing the recovery of lignin as a renewable raw material and exploring its application in valuable areas. Through a systematic approach combining UV-Vis spectroscopy with AAS and DLS, we identified repeatable and scalable reaction conditions in an aqueous solution at pH 11 for homogeneous silver nanoparticles with high uniformity. The TEM median sizes ranged from 12 to 15 nm with circularity between 0.985 and 0.993. The silver nanoparticles yield exceeded 0.010 mol L-1, comparable with traditional physico-chemical methods, with a minimal loss of silver precursor ranging between 0.5 and 3.9%. Characterization by XRD and XPS revealed the presence of Ag-O bonding involving lignin functional groups on the pure face-centered cubic structure of metallic silver. Moreover, the lignin-modified silver nanoparticles generated a localized thermal effect upon near-infrared laser irradiation (808 nm), potentially allowing for targeted applications in the biomedical field. Our study showcases the potential of lignin as a renewable reducing and capping agent for silver nanoparticle synthesis, addressing some shortcomings of green synthesis approaches and contributing to the development of suitable nanomaterials.
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Affiliation(s)
- Dominik Maršík
- Department of Biotechnology, University of Chemistry and Technology, 166 28 Prague, Czech Republic; (D.M.); (O.M.); (J.M.)
| | - Petter Paulsen Thoresen
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources, Luleå University of Technology, 971 87 Luleå, Sweden; (P.P.T.); (U.R.); (P.C.)
| | - Olga Maťátková
- Department of Biotechnology, University of Chemistry and Technology, 166 28 Prague, Czech Republic; (D.M.); (O.M.); (J.M.)
| | - Jan Masák
- Department of Biotechnology, University of Chemistry and Technology, 166 28 Prague, Czech Republic; (D.M.); (O.M.); (J.M.)
| | - Pavel Sialini
- Central Laboratories, University of Chemistry and Technology, 166 28 Prague, Czech Republic;
| | - Ulrika Rova
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources, Luleå University of Technology, 971 87 Luleå, Sweden; (P.P.T.); (U.R.); (P.C.)
| | - Vasiliki Tsikourkitoudi
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 171 77 Stockholm, Sweden;
| | - Paul Christakopoulos
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources, Luleå University of Technology, 971 87 Luleå, Sweden; (P.P.T.); (U.R.); (P.C.)
| | - Leonidas Matsakas
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources, Luleå University of Technology, 971 87 Luleå, Sweden; (P.P.T.); (U.R.); (P.C.)
| | - Irena Jarošová Kolouchová
- Department of Biotechnology, University of Chemistry and Technology, 166 28 Prague, Czech Republic; (D.M.); (O.M.); (J.M.)
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2
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Savvidou MG, Kontari E, Kalantzi S, Mamma D. Green Synthesis of Silver Nanoparticles Using the Cell-Free Supernatant of Haematococcus pluvialis Culture. MATERIALS (BASEL, SWITZERLAND) 2023; 17:187. [PMID: 38204044 PMCID: PMC10779655 DOI: 10.3390/ma17010187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/22/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024]
Abstract
The green synthesis of silver nanoparticles (AgNPs) using the cell-free supernatant of a Haematococcus pluvialis culture (CFS) was implemented in the current study, under illumination conditions. The reduction of Ag+ to AgNPs by the CFS could be described by a pseudo-first-order kinetic equation at the temperature range tested. A high reaction rate during synthesis and stable AgNPs were obtained at 45 °C, while an alkaline pH (pH = 11.0) and a AgNO3 aqueous solution to CFS ratio of 90:10 (v/v) proved to be the most effective conditions in AgNPs synthesis. A metal precursor (AgNO3) at the concentration range tested (1-5 mM) was the limited reactant in the synthesis process. The synthesis of AgNPs was accomplished under static and agitated conditions. Continuous stirring enhanced the rate of reaction but induced aggregation at prolonged incubation times. Zeta potential and polydispersity index measurements indicated stable AgNPs and the majority of AgNPs formation occurred in the monodisperse phase. The X-ray diffraction (XRD) pattern revealed the face-centered cubic structure of the formed AgNPs, while TEM analysis revealed that the AgNPs were of a quasi-spherical shape with a size from 30 to 50 nm. The long-term stability of the AgNPs could be achieved in darkness and at 4 °C. In addition, the synthesized nanoparticles showed antibacterial activity against Escherichia coli.
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Affiliation(s)
- Maria G. Savvidou
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechniou Str, 15780 Athens, Greece or (M.G.S.); (E.K.); (S.K.)
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Evgenia Kontari
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechniou Str, 15780 Athens, Greece or (M.G.S.); (E.K.); (S.K.)
| | - Styliani Kalantzi
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechniou Str, 15780 Athens, Greece or (M.G.S.); (E.K.); (S.K.)
| | - Diomi Mamma
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 9 Iroon Polytechniou Str, 15780 Athens, Greece or (M.G.S.); (E.K.); (S.K.)
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3
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Xu C, Chaudhuri S, Held J, Andaraarachchi HP, Schatz GC, Kortshagen UR. Silver Nanoparticle Synthesis in Glycerol by Low-Pressure Plasma-Driven Electrolysis: The Roles of Free Electrons and Photons. J Phys Chem Lett 2023; 14:9960-9968. [PMID: 37903417 DOI: 10.1021/acs.jpclett.3c02342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Low-temperature plasmas in and in contact with liquids have emerged as a catalyst-free approach for the selective, electrode-free, and green synthesis of novel materials. For the synthesis of nanomaterials, short-lived solvated electrons have been proposed to be the critical reducing species, while the role of ultraviolet (UV) photons from plasma is less explored. Here, we demonstrate that UV radiation contributes ∼70% of the integral plasma effect in synthesizing silver (Ag) nanoparticles within a glycerol solution. We suggest that the UV radiation causes C-H bond cleavage of the glycerol molecules, with an experimentally and theoretically determined threshold photon energy of only 5 eV. The photon-induced dissociation leads to the formation of glycerol fragmentation radicals, causing the reduction of Ag+ ions to Ag neutrals, enabling nanoparticle formation in the liquid phase.
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Affiliation(s)
- Chi Xu
- Department of Mechanical Engineering, University of Minnesota, 111 Church Street SE, Minneapolis, Minnesota 55455, United States
| | - Subhajyoti Chaudhuri
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Julian Held
- Department of Mechanical Engineering, University of Minnesota, 111 Church Street SE, Minneapolis, Minnesota 55455, United States
| | - Himashi P Andaraarachchi
- Department of Mechanical Engineering, University of Minnesota, 111 Church Street SE, Minneapolis, Minnesota 55455, United States
| | - George C Schatz
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Uwe R Kortshagen
- Department of Mechanical Engineering, University of Minnesota, 111 Church Street SE, Minneapolis, Minnesota 55455, United States
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4
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Majumder S, Chatterjee S, Basnet P, Mukherjee J. Plasmonic photocatalysis of concentrated industrial LASER dye: Rhodamine 6G. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Li S, Xue Y, Hao B, Yang T, Zhang Y, Shen Q. γ‐Valerolactone/H
2
O‐ Derived Facile Preparation of Lignin‐Based AgNPs to Full Utilization of Lignocellulosic Biomass. ChemistrySelect 2022. [DOI: 10.1002/slct.202200443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shengren Li
- College of Chemical Engineering and Technology Taiyuan University of Technology Wanbailin District Taiyuan 030000 China
| | - Yuyuan Xue
- College of Chemical Engineering and Technology Taiyuan University of Technology Wanbailin District Taiyuan 030000 China
| | - Baolin Hao
- College of Chemical Engineering and Technology Taiyuan University of Technology Wanbailin District Taiyuan 030000 China
| | - Taowei Yang
- College of Chemical Engineering and Technology Taiyuan University of Technology Wanbailin District Taiyuan 030000 China
| | - Yan Zhang
- College of Chemical Engineering and Technology Taiyuan University of Technology Wanbailin District Taiyuan 030000 China
| | - Qi Shen
- College of Chemical Engineering and Technology Taiyuan University of Technology Wanbailin District Taiyuan 030000 China
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6
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Kumar A, Goia DV. Preparation of concentrated stabilizer-free dispersions of uniform silver nanoparticles. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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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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8
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A S Ribeiro C, J C Albuquerque L, de Castro CE, Pereira RM, Albuquerque BL, Pavlova E, Gabriela Schlüter L, Batista BL, Bellettini IC, Giacomelli FC. Ready-to-use room temperature one-pot synthesis of surface-decorated gold nanoparticles with targeting attributes. J Colloid Interface Sci 2022; 614:489-501. [PMID: 35121507 DOI: 10.1016/j.jcis.2022.01.145] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/19/2022] [Accepted: 01/23/2022] [Indexed: 12/12/2022]
Abstract
Gold nanoparticles (AuNPs) can be used in diagnostic and therapeutic applications. The development of facile and fast synthetic approaches is accordingly desirable towards ready-to-use biomedical materials. We report a practical one-pot method for the synthesis in aqueous media and room temperature of surface-decorated AuNPs with enhanced biological responses. The gold ions could be reduced using only polyethyleneimine (PEI) derivatives containing sugar and-or alkyl chains acting simultaneously as reducing and stabilizing agent, without the aid of any other mediator. The process is possibly potentialized by the presence of the amino groups in the polymer chains which further confer colloidal stability. The kinetics of AuNPs nucleation and growth depends on the chemical nature of the polymer chains. Particularly, the presence of lactose moieties conjugated to the PEI chains conducted to surface-decorated AuNPs with low cytotoxicity that are remarkably faster uptaken by HepG2 cells. These cells overexpress asialoglycoprotein (ASGP-R), a galactose receptor. These findings may kick off significant advances towards the practical and ready-to-use manufacturing of functionalized AuNPs towards cell-targeting since the methodology is applicable for a large variety of other ligands that can be conjugated to the same polymer chains.
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Affiliation(s)
- Caroline A S Ribeiro
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Lindomar J C Albuquerque
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil; Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Carlos E de Castro
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Rodrigo M Pereira
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Brunno L Albuquerque
- Laboratory of Molecular Catalysis, Institute of Chemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Ewa Pavlova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Luiza Gabriela Schlüter
- Departamento de Ciências Exatas e Educação, Universidade Federal de Santa Catarina, Blumenau, Brazil
| | - Bruno L Batista
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Ismael C Bellettini
- Departamento de Ciências Exatas e Educação, Universidade Federal de Santa Catarina, Blumenau, Brazil
| | - Fernando C Giacomelli
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil.
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9
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Guo J, Zhou Y, Zhu D, Li Y, Yang R. Conjugated Polyelectrolyte/Silver Bromide Nanocomposites: Highly Durable and Robust Antibacterial Materials. ACS APPLIED BIO MATERIALS 2022; 5:183-189. [PMID: 35014819 DOI: 10.1021/acsabm.1c01030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the in situ synthesis of silver bromide nanoparticles (AgBr NPs) in a cationic conjugated polyelectrolyte (CPE) matrix. It is interesting that the obtained CPE/AgBr nanocomposite materials exhibit robust and long-term antimicrobial activity against both Gram-negative bacteria and Gram-positive bacteria by producing a large amount of biologically active Ag+. Meanwhile, it is demonstrated that the antimicrobial activity of CPE/AgBr nanocomposites is also related to the size of the AgBr NPs. Smaller particles show a faster AgBr release rate and hence higher antimicrobial activity than big particles. However, the relatively large-sized nanocomposites are beneficial to obtain long-term antimicrobial activity by substantially producing bioactive Ag+. Consequently, the antimicrobial property of the CPE/AgBr nanocomposites can be manipulated by controlling the dimensions of embedded AgBr NPs. The CPE/AgBr nanocomposites can cause a rapid initial drop of bacterial counts in solution, which makes it a potential candidate for antimicrobial therapy in emergency cases. In addition, the sustained release of Ag+ from large-sized nanocomposites makes them suitable for long-term use.
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Affiliation(s)
- Jing Guo
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Yuanhang Zhou
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Dangqiang Zhu
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Yonghai Li
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Renqiang Yang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.,Key Laboratory of Optoelectronic Chemical Materials and Devices (Ministry of Education), School of Optoelectronic Materials & Technology, Jianghan University, Wuhan 430056, China
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10
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Sergievskaya A, Chauvin A, Konstantinidis S. Sputtering onto liquids: a critical review. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:10-53. [PMID: 35059275 PMCID: PMC8744456 DOI: 10.3762/bjnano.13.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/07/2021] [Indexed: 05/03/2023]
Abstract
Sputter deposition of atoms onto liquid substrates aims at producing colloidal dispersions of small monodisperse ultrapure nanoparticles (NPs). Since sputtering onto liquids combines the advantages of the physical vapor deposition technique and classical colloidal synthesis, the review contains chapters explaining the basics of (magnetron) sputter deposition and the formation of NPs in solution. This review article covers more than 132 papers published on this topic from 1996 to September 2021 and aims at providing a critical analysis of most of the reported data; we will address the influence of the sputtering parameters (sputter power, current, voltage, sputter time, working gas pressure, and the type of sputtering plasma) and host liquid properties (composition, temperature, viscosity, and surface tension) on the NP formation as well as a detailed overview of the properties and applications of the produced NPs.
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Affiliation(s)
- Anastasiya Sergievskaya
- Plasma-Surface Interaction Chemistry (ChIPS), University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
| | - Adrien Chauvin
- Plasma-Surface Interaction Chemistry (ChIPS), University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
- Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Praha 2, Czech Republic
| | - Stephanos Konstantinidis
- Plasma-Surface Interaction Chemistry (ChIPS), University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
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11
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Nanocomposites production of polystyrene/silver obtained by embedding silver nanoparticles in situ with styrene polymerization. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1007/s43153-021-00207-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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12
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Gangwar C, Yaseen B, Kumar I, Singh NK, Naik RM. Growth Kinetic Study of Tannic Acid Mediated Monodispersed Silver Nanoparticles Synthesized by Chemical Reduction Method and Its Characterization. ACS OMEGA 2021; 6:22344-22356. [PMID: 34497923 PMCID: PMC8412910 DOI: 10.1021/acsomega.1c03100] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 08/09/2021] [Indexed: 05/22/2023]
Abstract
The complex process of nanoparticle formation in an aqueous solution is governed by kinetics and thermodynamic factors. This paper describes a room-temperature growth kinetic study and evaluation of thermodynamic activation parameters of monodispersed silver nanoparticles (AgNPs) synthesized in alkaline medium by chemical reduction method using AgNO3 as a source of Ag+ ions and tannic acid (TA) as a reductant (reducing agent) as well as a capping or stabilizing agent in the absence of any other external stabilizer. A simple and conveniently handled reaction process was monitored spectrophotometrically to study the growth kinetics in an aqueous solution as a function of the concentration of silver ion, hydroxide ion, and TA, respectively. The neutral nucleophilic group donates the electron density via a lone pair of electrons to Ag+ ions for the reduction process, i.e., for the nucleation of AgNPs colloid. Also, a few silver ions form a silver oxide, which also facilitates the nucleation center to enhance the growth of AgNPs colloid. The decrease and increase in rate constant on varying the TA concentration showed its adsorption onto the surface of metallic AgNPs and stabilized by polygalloyl units of TA and were the main elements to control the growth kinetics. Consequently, stabilized TA-mediated AgNPs are formed using the electron donated by quinone form of TA followed by a pseudo-first-order reaction. Apart from this, nanoparticles formed were characterized using 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 techniques to confirm its formation during the present kinetic study.
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13
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Okumoto S, Kitagawa Y. A Computational Study on Reduction Mechanism of Silver Nanoparticles Synthesis. CHEM LETT 2021. [DOI: 10.1246/cl.200869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Satoshi Okumoto
- Product Analysis Center, Panasonic Corporation, 1048, Kadoma, Osaka 571-8686, Japan
| | - Yasutaka Kitagawa
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
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14
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Tan KB, Sun D, Huang J, Odoom-Wubah T, Li Q. State of arts on the bio-synthesis of noble metal nanoparticles and their biological application. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.11.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Lee J, Kim S, Mubeen S, Mulchandani A, Chen W, Choa Y, Myung NV. Synthesis of gold nanostructures using glycine as the reducing agent. NANOTECHNOLOGY 2020; 31:455601. [PMID: 32808596 DOI: 10.1088/1361-6528/abaa76] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Biological synthesis of gold nanostructures could potentially offer an environmentally friendly alternative to traditional chemical synthetic methods. During the last decades, various biomolecules, including amino acids, have been successfully used as reducing and capping agents to synthesize multi-shaped gold nanostructures. A grand challenge in this field is to increase our ability to control the size and shape of gold nanostructures formed precisely by systematic synthetic approaches based on the understanding of the mechanism for structural determination. In this study, using glycine as the model amino acid and chloroaurate (AuCl4 -) ions as the precursor solution, we report the finding that the shape of the gold nanostructures synthesized showed a strong correlation with the speciation of gold complexes determined by the pH, precursor concentration and chloride concentration of the solvent system. The gold chloro-hydroxy speciation [AuClx(OH)4-x]- (with x = 0-4) influenced the shape of the gold nanostructures formed, with gold nanoplatelets, nanotriangles, nanokites and nanoribbons observed at x = 4, 3, 2 and 1, respectively, and spherical nanoparticles observed at x = 0. Glycine was found to play a role as a reducing agent, but no significant effect on the morphology was observed, indicating the dominance of gold chloro-hydroxy speciation in the structural formation. These results collectively provide synthetic considerations to systematically synthesize non-spherical to spherical biosynthesized gold nanostructures by controlling the speciation of [AuClx(OH)4-x]-.
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Affiliation(s)
- Joun Lee
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, United States of America. Department of Chemical and Biochemical Engineering, University of Iowa, Iowa City, IA 52242, United States of America
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16
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Liu T, Baek DR, Kim JS, Joo SW, Lim JK. Green Synthesis of Silver Nanoparticles with Size Distribution Depending on Reducing Species in Glycerol at Ambient pH and Temperatures. ACS OMEGA 2020; 5:16246-16254. [PMID: 32656447 PMCID: PMC7346276 DOI: 10.1021/acsomega.0c02066] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
With an increase in biodiesel demand, a large surplus of glycerol is expected, and there is interest regarding the usage of glycerol as a value-added product. One such idea is to use glycerol as a "green solvent" to replace petroleum-based organic solvents. Glycerol is nontoxic to humans, and its vapor pressure is sufficiently high for the chemical reaction to be performed at high temperatures under ambient atmospheric pressures. Its dielectric constant is between those of water and organic solvents, and it dissolves widely varying materials, spanning between salts and organic molecules. Metal nanoparticles have been known to be synthesized in glycerol within limited experimental conditions, including high temperatures, alkaline pH conditions, and the irradiance of ultraviolet light. Herein, we report that silver nanoparticles have been formed in glycerol under completely green conditions (e.g., room temperature, neutral pH conditions, and without irradiance of ultraviolet light). We suggest that aldehydes and free radicals are generated in glycerol, which is operating as reducing species.
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Affiliation(s)
- Tianhao Liu
- Department
of Chemistry, College of Natural Science, Chosun University, Gwangju 61452, South Korea
| | - Da Rae Baek
- Department
of Chemistry, College of Natural Science, Chosun University, Gwangju 61452, South Korea
| | - Jae Seok Kim
- Department
of Chemistry, College of Natural Science, Chosun University, Gwangju 61452, South Korea
| | - Sang-Woo Joo
- Department
of Chemistry, College of Natural Sciences, Soongsil University, Seoul 06978, South Korea
| | - Jong Kuk Lim
- Department
of Chemistry, College of Natural Science, Chosun University, Gwangju 61452, South Korea
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Liu M, Gao X, Pan F, Deng Y, Xia D, Li Z, Fu J. Effect of pyrene on formation of natural silver nanoparticles via reduction of silver ions by humic acid under UV irradiation. CHEMOSPHERE 2020; 247:125937. [PMID: 31978665 DOI: 10.1016/j.chemosphere.2020.125937] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 01/04/2020] [Accepted: 01/15/2020] [Indexed: 06/10/2023]
Abstract
This work reported the role of pyrene in formation of naturally occurring silver nanoparticles (AgNPs) via the reduction of silver ions by humic acid under the UV irradiation in the aquatic environment. An increase in temperature (25-90 °C), pH (5-9) or concentration of humic acid (2.5-15 mg/L) led to an enhanced formation of AgNPs. The TEM images indicated the formed AgNPs were spherical with an average particle size of ∼20 nm. Pyrene showed a limited capacity for the photoreduction of silver ions, and when both pyrene and humic acid were present, pyrene would compete with humic acid for the reduction of silver ions. However, the presence of pyrene would enhance the stability and suppress the antibacterial activity of natural AgNPs. The UV-vis spectra of AgNPs suspensions generated with pyrene did not change within 45 days. The inhibition rates against Escherichia coli of AgNPs generated with pyrene were 8-32% lower than those of AgNPs generated without pyrene. This study provides environmental implications on the fate and ecotoxicity of natural AgNPs with interaction of polycyclic aromatic hydrocarbons.
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Affiliation(s)
- Min Liu
- School of Environmental Engineering, Wuhan Textile University, Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan, 430073, PR China
| | - Xinyu Gao
- School of Environmental Engineering, Wuhan Textile University, Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan, 430073, PR China
| | - Fei Pan
- School of Environmental Engineering, Wuhan Textile University, Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan, 430073, PR China.
| | - Yuwei Deng
- School of Environmental Engineering, Wuhan Textile University, Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan, 430073, PR China
| | - Dongsheng Xia
- School of Environmental Engineering, Wuhan Textile University, Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan, 430073, PR China
| | - Zhang Li
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Jie Fu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China.
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Nie X, Zhu K, Zhao S, Dai Y, Tian H, Sharma VK, Jia H. Interaction of Ag + with soil organic matter: Elucidating the formation of silver nanoparticles. CHEMOSPHERE 2020; 243:125413. [PMID: 31765900 DOI: 10.1016/j.chemosphere.2019.125413] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/22/2019] [Accepted: 11/18/2019] [Indexed: 06/10/2023]
Abstract
Naturally silver nanoparticles (AgNPs) have been widely observed in ore deposits, coal, natural water and soil environment. Identifying the source of these naturally AgNPs could be helpful for the elucidation of the geochemical cycle of Ag+ and AgNPs. This paper presents the formation of AgNPs by reducing Ag+ in the presence of soil organic matter (SOM) under various environmentally relevant conditions. The formation of AgNPs associated with various SOM (peat humic acid (PHA), peat fulvic acid (PFA), and commercial humic acids (HA-1 and HA-2)) was determined and compared. The physicochemical properties of the tested SOM were studied by electron paramagnetic resonance (EPR) and attenuated total reflection-infrared (ATR-FTIR) techniques. The formation of AgNPs depended on reductive reactions mediated by SOM. Other influential parameters that influenced the formation of AgNPs included concentrations of Ag+ and SOM and the reaction temperature on AgNPs. The produced AgNPs were characterized by transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The mean hydrodynamic diameters of AgNPs associated with PHA and PFA were in range from 2.5 to 15 nm, which were smaller than that produced from HA-1 and HA-2 in the range from 20 to 120 nm. Two different Ag states, i.e., Ag2O and Ag0 species, were observed by XPS technique. The results indicated that the formation of AgNPs depends largely on the types and the properties of natural organic matter. These findings have important implications for the fate of AgNPs under the soil environment.
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Affiliation(s)
- Xiaofeng Nie
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources and Environment, Northwest A & F University, Yangling, 712100, China
| | - Kecheng Zhu
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources and Environment, Northwest A & F University, Yangling, 712100, China
| | - Song Zhao
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources and Environment, Northwest A & F University, Yangling, 712100, China
| | - Yunchao Dai
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources and Environment, Northwest A & F University, Yangling, 712100, China
| | - Haixia Tian
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources and Environment, Northwest A & F University, Yangling, 712100, China
| | - Virender K Sharma
- Program for the Environment and Sustainability, Department of Occupational and Environmental Health, School of Public Health, Texas A&M University, College Station, TX, 77843, USA.
| | - Hanzhong Jia
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources and Environment, Northwest A & F University, Yangling, 712100, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.
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Kytsya A, Bazylyak L, Simon P, Zelenina I, Antonyshyn I. Kinetics of Ag 300nanoclusters formation: The catalytically effective nucleus via a steady-state approach. INT J CHEM KINET 2019. [DOI: 10.1002/kin.21249] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Andriy Kytsya
- Department of Physical Chemistry of Fossil Fuels InPOCCC NAS of Ukraine; Lviv Ukraine
| | - Liliya Bazylyak
- Department of Physical Chemistry of Fossil Fuels InPOCCC NAS of Ukraine; Lviv Ukraine
| | - Paul Simon
- Max-Planck-Institut für Chemische Physik fester Stoffe; Dresden Germany
| | - Iryna Zelenina
- Max-Planck-Institut für Chemische Physik fester Stoffe; Dresden Germany
| | - Iryna Antonyshyn
- Max-Planck-Institut für Chemische Physik fester Stoffe; Dresden Germany
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Gonçalves SPCC, Strauss M, Martinez DST. The Positive Fate of Biochar Addition to Soil in the Degradation of PHBV-Silver Nanoparticle Composites. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:13845-13853. [PMID: 30354084 DOI: 10.1021/acs.est.8b01524] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The environmental contamination of soils by polymeric and nanomaterials is an increasing global concern. Polymeric composites containing silver nanoparticles (AgNP) are collectively one of the most important products of nanotechnology due to their remarkable antimicrobial activity. Biochars are a promising resource for environmental technologies for remediation of soils considering their high inorganic and organic pollutant adsorption capacity and microbial soil consortium stimulation. In this work we report, for the first time, the use of biochar material as a tool to accelerate the degradation of polyhydroxybutyrate- co-valerate (PHBV) and PHBV composites containing AgNP in a tropical soil system, under laboratory conditions. This positive effect is associated with microbial community improvement, which increased the degradation rate of the polymeric materials, as confirmed by integrated techniques for advanced materials characterization. The addition of 5-10% of sugarcane bagasse biochar into soil has increased the degradation of these polymeric materials 2 to 3 times after 30 days of soil incubation. However, the presence of silver nanoparticles in the PHBV significantly reduced the degradability potential of this nanocomposite by the soil microbial community. These results provide evidence that AgNP or Ag+ ions caused a decline in the total number of bacteria and fungi, which diminished the polymer degradation rate in soil. Finally, this work highlights the great potential of biochar resources for application in soil remediation technologies, such as polymeric (nano)material biodegradation.
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Affiliation(s)
- Suely Patrı Cia Costa Gonçalves
- Brazilian Nanotechnology National Laboratory (LNNano) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , São Paulo , Brazil . P.O. Box 6192, 13083-970
| | - Mathias Strauss
- Brazilian Nanotechnology National Laboratory (LNNano) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , São Paulo , Brazil . P.O. Box 6192, 13083-970
| | - Diego Stéfani Teodoro Martinez
- Brazilian Nanotechnology National Laboratory (LNNano) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , São Paulo , Brazil . P.O. Box 6192, 13083-970
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22
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Du S, Luo Y, Liao Z, Zhang W, Li X, Liang T, Zuo F, Ding K. New insights into the formation mechanism of gold nanoparticles using dopamine as a reducing agent. J Colloid Interface Sci 2018; 523:27-34. [DOI: 10.1016/j.jcis.2018.03.077] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 03/21/2018] [Accepted: 03/23/2018] [Indexed: 11/30/2022]
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Kahsay MH, RamaDevi D, Kumar YP, Mohan BS, Tadesse A, Battu G, Basavaiah K. Synthesis of silver nanoparticles using aqueous extract of Dolichos lablab for reduction of 4-Nitrophenol, antimicrobial and anticancer activities. OPENNANO 2018. [DOI: 10.1016/j.onano.2018.04.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Abbass AE, Janse Van Vuuren A, Swart H, Kroon R. Distinguishing the nature of silver incorporated in sol-gel silica. JOURNAL OF NON-CRYSTALLINE SOLIDS 2017; 475:71-75. [DOI: 10.1016/j.jnoncrysol.2017.08.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Kang H, Kim Y, Cheon S, Yi GR, Cho JH. Halide Welding for Silver Nanowire Network Electrode. ACS APPLIED MATERIALS & INTERFACES 2017; 9:30779-30785. [PMID: 28820234 DOI: 10.1021/acsami.7b09839] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We developed a method of chemically welding silver nanowires (AgNWs) using an aqueous solution containing sodium halide salts (NaF, NaCl, NaBr, or NaI). The halide welding was performed simply by immersing the as-coated AgNW film into the sodium halide solution, and the resulting material was compared with those obtained using two typical thermal and plasmonic welding techniques. The halide welding dramatically reduced the sheet resistance of the AgNW electrode because of the strong fusion among nanowires at each junction while preserving the optical transmittance. The dramatic decrease in the sheet resistance was attributed to the autocatalytic addition of dissolved silver ions to the nanowire junction. Unlike thermal and plasmonic welding methods, the halide welding could be applied to AgNW films with a variety of deposition densities because the halide ions uniformly contacted the surface or junction regions. The optimized AgNW electrodes exhibited a sheet resistance of 9.3 Ω/sq at an optical transmittance of 92%. The halide welding significantly enhanced the mechanical flexibility of the electrode compared with the as-coated AgNWs. The halide-welded AgNWs were successfully used as source-drain electrodes in a transparent and flexible organic field-effect transistor (OFET). This simple, low-cost, and low-power consumption halide welding technique provides an innovative approach to preparing transparent electrodes for use in next-generation flexible optoelectronic devices.
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Affiliation(s)
- Hyungseok Kang
- SKKU Advanced Institute of Nanotechnology (SAINT) and ‡School of Chemical Engineering, Sungkyunkwan University , Suwon 440-746, Republic of Korea
| | - Yeontae Kim
- SKKU Advanced Institute of Nanotechnology (SAINT) and ‡School of Chemical Engineering, Sungkyunkwan University , Suwon 440-746, Republic of Korea
| | - Siuk Cheon
- SKKU Advanced Institute of Nanotechnology (SAINT) and ‡School of Chemical Engineering, Sungkyunkwan University , Suwon 440-746, Republic of Korea
| | - Gi-Ra Yi
- SKKU Advanced Institute of Nanotechnology (SAINT) and ‡School of Chemical Engineering, Sungkyunkwan University , Suwon 440-746, Republic of Korea
| | - Jeong Ho Cho
- SKKU Advanced Institute of Nanotechnology (SAINT) and ‡School of Chemical Engineering, Sungkyunkwan University , Suwon 440-746, Republic of Korea
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26
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Zaheer Z, Aazam ES. Cetyltrimethylammonium bromide assisted synthesis of silver nanoparticles and their catalytic activity. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.07.123] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Metal-induced aggregation of valine capped gold nanoparticles: An efficient and rapid approach for colorimetric detection of Pb 2+ ions. Sci Rep 2017; 7:9278. [PMID: 28839229 PMCID: PMC5570942 DOI: 10.1038/s41598-017-08847-5] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 07/12/2017] [Indexed: 11/08/2022] Open
Abstract
In this study, we report a novel application of valine-capped gold nanoparticles for colorimetric and visual detection of lead ions. The -COO- group of the hydrophobic valine molecules present efficient electrostatic repulsion resulting in generation of stable, well-dispersed and size-controlled GNPs. The GNPs were highly selective for Pb2+ ions and showed visible colour change in the assay mixture on addition of solution containing lead ions. Interestingly, a decrease in the intensity of original SPR peak at 530 nm was observed, with concomitant appearance of a new peak at longer wavelength due to agglomerated GNPs. The free -COO- groups on GNP surface interacted with Pb2+ and ion-dependent chelation mechanism lead to cross-linking of particles and subsequent agglomeration. Binding of Pb2+ ions and valine-capped GNPs occur in a stochiometric ratio of 1:2. The GNPs displayed colorimetric sensing in the range of 0 to 100 ppm concentration with a very high selectivity towards lead even in the presence of other metal ions. The minimum detection limit (MDL) for Pb2+ was 30.5 µM. We anticipate that these valine-capped GNPs may be employed for lead detection in polluted water/wastewater through a cost-efficient, one-step assay protocol as it does not require additional functionalization with specific ligand molecules.
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28
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The effect of silver salts and lignosulfonates in the synthesis of lignosulfonate-stabilized silver nanoparticles. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.05.065] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Zaheer Z, Aazam ES. Seedless synthesis of nanocomposites, optical properties, and effects of additives on their surface resonance plasmon bands. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 182:87-94. [PMID: 28402909 DOI: 10.1016/j.saa.2017.03.047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 03/17/2017] [Accepted: 03/18/2017] [Indexed: 06/07/2023]
Abstract
The work describes an easy seedless competitive chemical reduction method for the synthesis of Ag@Au/Ag bimetallic nanoparticles by mixing AgNO3, HAuCl4 and cysteine. Transmission electron microscope (TEM) images show that the large number of irregular, cross-linking, and aggregated Ag@Au/Ag are formed in a reaction mixture (HAuCl4+AgNO3+cysteine), whereas flower-like nanocomposites are obtained in presence of cetyltrimethylammonium bromide (CTAB), which acted as a shape-directing agent. Optical images reveal that the initially reaction proceeds through formation of purple color, which changes into dark brown color with the reaction time, indicating the formation of Ag@Au/Ag nanocomposites. The Ag+ has strong tendency to form complex with cysteine. Firstly, the reduction of Ag+ ions to Ag0 occurred by the HS group of the cysteine-Ag complex. Secondly, AuCl4- ions adsorbed on the positive surface of Ag0, which undergoes reduction by potential deposition, and leads to the formation of Ag@Au/Ag bimetallic nanoparticles. Inorganic electrolytes (NaCl, NaBr, NaNO3 and Na2SO4) have significant impact on the stability and aggregation of Ag@Au/Ag nanocomposites.
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Affiliation(s)
- Zoya Zaheer
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21413, Saudi Arabia.
| | - Elham Shafik Aazam
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21413, Saudi Arabia
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30
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Khan Z, Hussain JI, Hashmi AA, AL-Thabaiti SA. Preparation and characterization of silver nanoparticles using aniline. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.05.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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31
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Herbani Y, Nakamura T, Sato S. Silver nanoparticle formation by femtosecond laser induced reduction of ammonia-containing AgNO3 solution. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1742-6596/817/1/012048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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33
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Protein interactions with silver nanoparticles: Green synthesis, and biophysical approach. Int J Biol Macromol 2017; 95:421-428. [DOI: 10.1016/j.ijbiomac.2016.11.046] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 11/12/2016] [Accepted: 11/14/2016] [Indexed: 11/21/2022]
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Zhang X, Yang CW, Yu HQ, Sheng GP. Light-induced reduction of silver ions to silver nanoparticles in aquatic environments by microbial extracellular polymeric substances (EPS). WATER RESEARCH 2016; 106:242-248. [PMID: 27728818 DOI: 10.1016/j.watres.2016.10.004] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/30/2016] [Accepted: 10/01/2016] [Indexed: 06/06/2023]
Abstract
Microbial extracellular polymeric substances (EPS) widely exist in natural environments and affect the migration and transformation of pollutants in aquatic environments. Previous works report that EPS have some reducing functional groups and can reduce heavy metals. However, because of the weak reducing capability of EPS, the reduction of heavy metals by EPS without cells is extremely slow, and its effect on heavy metals species is insignificant. In this work, the accelerated reduction of silver ions (Ag+) by EPS from Shewanella oneidensis MR-1 under illumination was investigated. UV-visible spectroscopy, transmission electron microscopy (TEM) coupled with an energy dispersive spectrometer (EDS) and X-ray photoelectron spectroscopy (XPS) were used to confirm the formation of silver nanoparticles (AgNPs) via the reduction of Ag+ by EPS under light illumination. The Ag+ reduction by EPS follows pseudo-first-order kinetics under both visible and UV light, and the light irradiation can significantly accelerate AgNPs formation. On the one hand, visible light can excite AgNPs for their surface plasma resonance (SPR) and accelerate the electrons from the EPS to adjacent Ag+. On the other hand, EPS molecules may be excited by UV light to produce strong reducing species, which enhance Ag+ reduction. Moreover, pH, dissolved oxygen were found to affect the formation of AgNPs by EPS. This work proves the reducing capability of EPS on the reduction of Ag+, and this process can be accelerated under light illumination, which may affect the speciation and transformation of heavy metals in natural waters.
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Affiliation(s)
- Xin Zhang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Chuan-Wang Yang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Han-Qing Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Guo-Ping Sheng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China.
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Priyadarshini E, Pradhan N, Pradhan AK, Pradhan P. Label free and high specific detection of mercury ions based on silver nano-liposome. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 163:127-133. [PMID: 27045785 DOI: 10.1016/j.saa.2016.03.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 03/21/2016] [Accepted: 03/23/2016] [Indexed: 06/05/2023]
Abstract
Herein, we report an eco-friendly, mild and one-pot approach for synthesis of silver nanoparticles via a lipopeptide biosurfactant - CHBS. The biosurfactant forms liposome vesicles when dispersed in an aqueous medium. The amino acid groups of the biosurfactant assists in the reduction of Ag(+) ions leading to the production of homogeneous silver nanoparticles, encapsulated within the liposome vesicle, as confirmed from TEM analysis. Rate of synthesis and size of particle were greatly dependent on pH and reaction temperature. Kinetic analysis suggests the involvement of an autocatalytic reaction and the observed rate constant (kobs) was found to decrease with temperature, suggesting faster reaction with increasing temperature. Furthermore, the silver nanoparticles served as excellent probes for highly selective and sensitive recognition of Hg(2+) ions. Interaction with Hg(2+) ions results in an immediate change in colour of nanoparticle solution form brownish red to milky white. With increasing Hg(2+) ions concentration, a gradual disappearance of SPR peak was observed. A linear relationship (A420/660) with an R(2) value of 0.97 was observed in the range of 20 to 100ppm Hg(2+) concentration. Hg(2+) ions are reduced to their elemental forms which thereby interact with the vesicles, leading to aggregation and precipitation of particles. The detection method avoids the need of functionalizing ligands and favours Hg(2+) detection in aqueous samples by visible range spectrophotometry and hence can be used for simple and rapid analysis.
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Affiliation(s)
- Eepsita Priyadarshini
- Academy of Scientific and Innovative Research, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
| | - Nilotpala Pradhan
- Academy of Scientific and Innovative Research, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India; Environment and Sustainability, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India.
| | - Arun K Pradhan
- Academy of Scientific and Innovative Research, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
| | - Pallavi Pradhan
- Environment and Sustainability, CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
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Cai Y, Tan F, Qiao X, Wang W, Chen J, Qiu X. Room-temperature synthesis of silica supported silver nanoparticles in basic ethanol solution and their antibacterial activity. RSC Adv 2016. [DOI: 10.1039/c5ra27053g] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile and environmentally friendly route was developed to synthesize silica supported silver nanoparticles through the reduction of Ag+ ions in basic ethanol solution without adding any other reducing agents or surfactants at room temperature.
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Affiliation(s)
- Yuncheng Cai
- State Key Laboratory of Material Processing and Die & Mould Technology
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Fatang Tan
- State Key Laboratory of Material Processing and Die & Mould Technology
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Xueliang Qiao
- State Key Laboratory of Material Processing and Die & Mould Technology
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Wei Wang
- State Key Laboratory of Material Processing and Die & Mould Technology
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Jianguo Chen
- State Key Laboratory of Material Processing and Die & Mould Technology
- Huazhong University of Science and Technology
- Wuhan
- P. R. China
| | - Xiaolin Qiu
- Nanomaterials Research Centre
- Nanchang Institute of Technology
- Nanchang
- P. R. China
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Jhuang YY, Cheng WT. Fabrication and characterization of silver/titanium dioxide composite nanoparticles in ethylene glycol with alkaline solution through sonochemical process. ULTRASONICS SONOCHEMISTRY 2016; 28:327-333. [PMID: 26384915 DOI: 10.1016/j.ultsonch.2015.08.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 08/12/2015] [Accepted: 08/18/2015] [Indexed: 06/05/2023]
Abstract
This paper aims to study fabrication and characterization of silver/titanium oxide composite nanoparticle through sonochemical process in the presence of ethylene glycol with alkaline solution. By using ultrasonic irradiation of a mixture of silver nitrate, the dispersed TiO2 nanoparticle in ethylene glycol associated with aqueous solution of sodium oxide yields Ag/TiO2 composite nanoparticle with shell/core-type geometry. The powder X-ray diffraction (XRD) of the Ag/TiO2 composites showed additional diffraction peaks corresponding to the face-centered cubic (fcc) structure of silver crystallization phase, apart from the signals from the cores of TiO2. Transmission electron microscopy (TEM) images of Ag/TiO2 composites, which average particle size is roughly 80 nm, reveal that the titanium oxide coated by Ag nanoparticle with a grain size of about 2-5 nm. Additionally, the formation of silver nanoparticles on TiO2 was monitored by ultraviolet visible light spectrophotometer (UV-Vis). As measured the optical absorption spectra of as-synthesized Ag nanoparticle varying with time, the mechanism of surface formatting silver shell on the cores of TiO2 could be explored by autocatalytic reaction; the conversion of Ag particle from silver ion is 98% for the reaction time of 1000 s; and the activity energy of synthesizing Ag nanoparticles on TiO2 is 40 kJ/mol at temperature ranging from 5 to 25°C. Hopefully, this preliminary investigation could be used for mass production of composite nanoparticles assisted by ultrasonic chemistry in the future.
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Affiliation(s)
- Ya-Yi Jhuang
- Department of Chemical Engineering, National Chung Hsing University, Taichung 40227, Taiwan
| | - Wen-Tung Cheng
- Department of Chemical Engineering, National Chung Hsing University, Taichung 40227, Taiwan.
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Hu S, Hsieh YL. Silver nanoparticle synthesis using lignin as reducing and capping agents: A kinetic and mechanistic study. Int J Biol Macromol 2016; 82:856-62. [DOI: 10.1016/j.ijbiomac.2015.09.066] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 09/25/2015] [Accepted: 09/29/2015] [Indexed: 10/22/2022]
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Cho D, Kwon SH. A solid control strategy for preparation of silver nanoparticles in aqueous medium. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-015-0084-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Yao Y, Gao B, Wu F, Zhang C, Yang L. Engineered biochar from biofuel residue: characterization and its silver removal potential. ACS APPLIED MATERIALS & INTERFACES 2015; 7:10634-40. [PMID: 25923987 DOI: 10.1021/acsami.5b03131] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A novel approach was used to prepare engineered biochar from biofuel residue (stillage from bagasse ethanol production) through slow pyrolysis. The obtained biochar was characterized for its physicochemical properties as well as silver sorption ability. Sorption experimental data showed that engineered biochar quickly and efficiently removed silver ion (Ag(+)) from aqueous solutions with a Langmuir maximum capacity of 90.06 mg/g. The high sorption of Ag(+) onto the biochar was attributed to both reduction and surface adsorption mechanisms. The reduction of Ag(+) by the biochar was confirmed with scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy analyses of the postsorption biochar, which clearly showed the presence of metallic silver nanoparticles on the surface of the carbon matrix. An antimicrobial ability test indicated that silver-laden biochar effectively inhibited the growth of Escherichia coli, while the original biochar without silver nanoparticles promoted growth. Thus, biochar, prepared from biofuel residue materials, could be potentially applied not only to remove Ag(+) from aqueous solutions but also to produce a new value-added nanocomposite with antibacterial ability.
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Affiliation(s)
- Ying Yao
- †Beijing Key Laboratory of Environmental Science and Engineering, School of Chemical Engineering and the Environment, Beijing Institute of Technology, Beijing 100081, China
- ‡National Development Center of High Technology Green Materials, Beijing 100081, China
- §Department of Agricultural and Biological Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Bin Gao
- §Department of Agricultural and Biological Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Feng Wu
- †Beijing Key Laboratory of Environmental Science and Engineering, School of Chemical Engineering and the Environment, Beijing Institute of Technology, Beijing 100081, China
- ‡National Development Center of High Technology Green Materials, Beijing 100081, China
| | - Cunzhong Zhang
- †Beijing Key Laboratory of Environmental Science and Engineering, School of Chemical Engineering and the Environment, Beijing Institute of Technology, Beijing 100081, China
- ‡National Development Center of High Technology Green Materials, Beijing 100081, China
| | - Liuyan Yang
- ∥School of the Environment, Nanjing University, Nanjing 210046, China
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41
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Kytsya A, Bazylyak L, Hrynda Y, Horechyy A, Medvedevdkikh Y. The Kinetic Rate Law for the Autocatalytic Growth of Citrate-Stabilized Silver Nanoparticles. INT J CHEM KINET 2015. [DOI: 10.1002/kin.20913] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Andriy Kytsya
- Department of Physical Chemistry of Fossil Fuels InPOCC; NAS of Ukraine; 3а Naukova Str., Lviv-53 79053 Ukraine
| | - Liliya Bazylyak
- Department of Physical Chemistry of Fossil Fuels InPOCC; NAS of Ukraine; 3а Naukova Str., Lviv-53 79053 Ukraine
| | - Yuriy Hrynda
- Department of Physical Chemistry of Fossil Fuels InPOCC; NAS of Ukraine; 3а Naukova Str., Lviv-53 79053 Ukraine
| | - Andriy Horechyy
- Department of Nanostructured Materials; Leibniz Institute of Polymer Research Dresden; 01069 Dresden Germany
| | - Yuriy Medvedevdkikh
- Department of Physical Chemistry of Fossil Fuels InPOCC; NAS of Ukraine; 3а Naukova Str., Lviv-53 79053 Ukraine
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42
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Bashir O, Hussain S, AL-Thabaiti SA, Khan Z. Synthesis, optical properties, stability, and encapsulation of Cu-nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 140:265-273. [PMID: 25615680 DOI: 10.1016/j.saa.2014.12.065] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 11/27/2014] [Accepted: 12/17/2014] [Indexed: 06/04/2023]
Abstract
Starch-capped copper nanoparticles (CuNPs) were prepared by a chemical reduction method using hydrazine, copper sulfate and starch as reducing, oxidizing and stabilizing agents, respectively, for the first time at room temperature. The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), electron diffraction patterns (EDX), X-ray photoelectron spectroscopy (XPS), fourier transform infrared (FT-IR) spectroscopy, thermo-gravimetric analysis (TGA), and ultraviolet-visible spectroscopy. The effect of [starch], [hydrazine] and [copper sulfate] on the optical properties of CuNPs were studied by UV-visible spectrophotometrically. The hydrazine concentrations have large impact on the surface Plasmon resonance absorbance, nature of the reaction time curves and reaction rates decreases with [hydrazine]. Starch concentrations have no effect on the path of the CuNPs formation. The hexahedral with some irregular shaped CuNPs were formed in presence of starch with diameter 900 nm. Starch acted as a stabilizing, shape-directing and capping agent during the growth processes. The KI-I2 reagent could not replace CuNps from the inner helical structure of starch.
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Affiliation(s)
- Ommer Bashir
- Nano-science Research Lab, Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi 110025, India
| | - Shokit Hussain
- Nano-science Research Lab, Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi 110025, India
| | - Shaeel Ahmed AL-Thabaiti
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Zaheer Khan
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
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43
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Abstract
Silver nanoparticles possess unique properties which find myriad applications such as antimicrobial, anticancer, larvicidal, catalytic, and wound healing activities. Biogenic syntheses of silver nanoparticles using plants and their pharmacological and other potential applications are gaining momentum owing to its assured rewards. This critical review is aimed at providing an insight into the phytomediated synthesis of silver nanoparticles, its significant applications in various fields, and characterization techniques involved.
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44
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Sumi T, Dillert R, Horikoshi S. Utilization of the microwave electric or magnetic field in the synthesis of monometallic and bimetallic nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra00452g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
On preparation of bimetal nanoparticles by using a single-mode microwave resonator, Ag–Ni and Pd–Ag nanocomposites were synthesized under microwave irradiation at 80 centigrade, which was a lower temperature than that for reduction of Ag ion.
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Affiliation(s)
- Takuya Sumi
- Department of Material & Life Science
- Faculty of Science and Technology
- Sophia University
- Tokyo 102-8554
- Japan
| | - Ralf Dillert
- Department of Material & Life Science
- Faculty of Science and Technology
- Sophia University
- Tokyo 102-8554
- Japan
| | - Satoshi Horikoshi
- Department of Material & Life Science
- Faculty of Science and Technology
- Sophia University
- Tokyo 102-8554
- Japan
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45
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Wu S, Shen X, Ji Z, Zhu G, Chen C, Chen K, Bu R, Yang L. Synthesis of AgCl hollow cubes and their application in photocatalytic degradation of organic pollutants. CrystEngComm 2015. [DOI: 10.1039/c4ce02268h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation process and a typical FESEM image of AgCl hollow cubes.
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Affiliation(s)
- Shikui Wu
- School of Material Science and Engineering
- Jiangsu University
- Zhenjiang 212013, PR China
- Inner Mongolia Medical University
- College of Pharmacy
| | - Xiaoping Shen
- School of Material Science and Engineering
- Jiangsu University
- Zhenjiang 212013, PR China
- School of Chemistry and Chemical Engineering
- Jiangsu University
| | - Zhenyuan Ji
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013, PR China
| | - Guoxing Zhu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013, PR China
| | - Chaojun Chen
- Inner Mongolia Medical University
- College of Pharmacy
- Hohhot 010059, PR China
| | - Kangmin Chen
- School of Material Science and Engineering
- Jiangsu University
- Zhenjiang 212013, PR China
| | - Ren Bu
- Inner Mongolia Medical University
- College of Pharmacy
- Hohhot 010059, PR China
| | - Limin Yang
- Inner Mongolia Medical University
- College of Pharmacy
- Hohhot 010059, PR China
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46
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Kang YO, Lee TS, Park WH. Green synthesis and antimicrobial activity of silver chloride nanoparticles stabilized with chitosan oligomer. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:2629-2638. [PMID: 25096226 DOI: 10.1007/s10856-014-5294-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 07/21/2014] [Indexed: 06/03/2023]
Abstract
Nanocrystalline silver (Ag) and Ag containing nanostructure synthesized using various methods have been studied for their antimicrobial, wound healing, and anti-inflammatory efficacy. Among these, crystalline silver chloride (AgCl) nanostructures exhibit desirable properties for biological and biomedical applications. However, most of them are synthesized using hazardous agents and organic solvents, which has been limited for application in the biological field. A simple and environmentally friendly method was demonstrated for AgCl nanoparticles stabilized with chitosan oligomer (CHI-AgCl NPs) as both a resource of Cl ions and stabilizing agent with expectations of synergistic effects. The CHI-AgCl NPs stabilized by the chitosan oligomer had spherical morphology with a mean diameter of 42 ± 15 nm. Ag ions precipitated as AgCl in presence of Cl ions, which remained in the protonated amine group after HCl hydrolysis of the chitosan. Moreover, much of the amine and hydroxyl group bound to the AgCl NPs for growth and stabilization. These nanoparticles were characterized via various spectroscopic techniques, including UV-Vis spectrophotometry, X-ray photoelectron spectrometry, X-ray diffractometry, and transmission electron microscopy.
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Affiliation(s)
- Yun Ok Kang
- Department of Nanotechnology, Chungnam National University, Daejeon, 305-764, South Korea
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47
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Hussain S, Al-Thabaiti SA, Khan Z. Surfactant-assisted bio-conjugated synthesis of silver nanoparticles (AgNPs). Bioprocess Biosyst Eng 2014; 37:1727-35. [DOI: 10.1007/s00449-014-1145-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 01/30/2014] [Indexed: 11/29/2022]
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48
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Sharma VK, Siskova KM, Zboril R, Gardea-Torresdey JL. Organic-coated silver nanoparticles in biological and environmental conditions: fate, stability and toxicity. Adv Colloid Interface Sci 2014; 204:15-34. [PMID: 24406050 DOI: 10.1016/j.cis.2013.12.002] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 10/24/2013] [Accepted: 12/04/2013] [Indexed: 02/07/2023]
Abstract
This review paper presents the overview of processes involved in transformation of organic-coated silver nanoparticles (AgNPs) in biological systems and in the aquatic environment. The coating on AgNPs greatly influences the fate, stability, and toxicity of AgNPs in aqueous solutions, biological systems, and the environment. Several organic-coated AgNP systems are discussed to understand their stability and toxicity in biological media and natural water. Examples are presented to demonstrate how a transformation of organic-coated AgNPs in an aqueous solution is affected by the type of coating, pH, kind of electrolyte (mono- or divalent), ionic strength, organic ligands (inorganic and organic), organic matter (fulvic and humic acids), redox conditions (oxic and anoxic), and light. Results of cytotoxicity, genotoxicity, and ecotoxicity of coated AgNPs to food chain members (plants, bacteria, and aquatic and terrestrial organisms) are reviewed. Key factors contributing to toxicity are the size, shape, surface coating, surface charge, and conditions of silver ion release. AgNPs may directly damage the cell membranes, disrupt ATP production and DNA replication, alternate gene expressions, release toxic Ag(+) ion, and produce reactive oxygen species to oxidize biological components of the cell. A progress made on understanding the mechanism of organic-coated AgNP toxicity using different analytical techniques is presented.
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49
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Dinesh VP, Biji P, Ashok A, Dhara SK, Kamruddin M, Tyagi AK, Raj B. Plasmon-mediated, highly enhanced photocatalytic degradation of industrial textile dyes using hybrid ZnO@Ag core–shell nanorods. RSC Adv 2014. [DOI: 10.1039/c4ra09405k] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Hybrid ZnO@Ag core-shell nanorods were synthesized using a novel seed mediated, two-step process and their plasmon-mediated, enhanced photocatalytic property was used for degradation of industrial textile dyes and effluents.
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Affiliation(s)
- V. P. Dinesh
- Nanotech Research Facility
- PSG Institute of Advanced Studies
- Coimbatore-641004, India
| | - P. Biji
- Nanotech Research Facility
- PSG Institute of Advanced Studies
- Coimbatore-641004, India
| | - Anuradha Ashok
- Nanotech Research Facility
- PSG Institute of Advanced Studies
- Coimbatore-641004, India
| | - S. K. Dhara
- Indira Gandhi Center for Atomic Research
- Kalpakkam-603102, India
| | - M. Kamruddin
- Indira Gandhi Center for Atomic Research
- Kalpakkam-603102, India
| | - A. K. Tyagi
- Indira Gandhi Center for Atomic Research
- Kalpakkam-603102, India
| | - Baldev Raj
- Nanotech Research Facility
- PSG Institute of Advanced Studies
- Coimbatore-641004, India
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50
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Hussain S, Khan Z. Epigallocatechin-3-gallate-capped Ag nanoparticles: preparation and characterization. Bioprocess Biosyst Eng 2013; 37:1221-31. [DOI: 10.1007/s00449-013-1094-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 11/08/2013] [Indexed: 01/27/2023]
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