1
|
Gulbagça F, Aygun A, Altuner EE, Bekmezci M, Gur T, Sen F, Karimi-Maleh H, Zare N, Karimi F, Vasseghian Y. Facile bio-fabrication of Pd-Ag bimetallic nanoparticles and its performance in catalytic and pharmaceutical applications: Hydrogen production and in-vitro antibacterial, anticancer activities, and model development. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.02.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
2
|
Ge L, Qiu H, Li H, Bo M, Huang Z, Li L, Yao C. Electronic and magnetic properties of twisted silver and palladium nanorods using density functional theory. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
3
|
Yarmohammadi N, Ghadermazi M, Mozafari R. Copper based on diaminonaphthalene-coated magnetic nanoparticles as robust catalysts for catalytic oxidation reactions and C-S cross-coupling reactions. RSC Adv 2021; 11:9366-9380. [PMID: 35423431 PMCID: PMC8695341 DOI: 10.1039/d1ra01029h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 02/15/2021] [Indexed: 12/22/2022] Open
Abstract
In this work, the immobilization of copper(ii) on the surface of 1,8-diaminonaphthalene (DAN)-coated magnetic nanoparticles provides a highly active catalyst for the oxidation reaction of sulfides to sulfoxides and the oxidative coupling of thiols to disulfides using hydrogen peroxide (H2O2). This catalyst was also applied for the one-pot synthesis of symmetrical sulfides via the reaction of aryl halides with thiourea as the sulfur source in the presence of NaOH instead of former strongly basic and harsh reaction conditions. Under optimum conditions, the synthesis yields of sulfoxides, symmetrical sulfides, and disulfides were about 99%, 95%, and 96% respectively with highest selectivity. The heterogeneous copper-based catalyst has advantages such as the easy recyclability of the catalyst, the easy separation of the product and the less wastage of products during the separation of the catalyst. This heterogeneous nanocatalyst was characterized by FESEM, FT-IR, VSM, XRD, EDX, ICP and TGA. Furthermore, the recycled catalyst can be reused for several runs and is economically effective.
Collapse
Affiliation(s)
- Nasrin Yarmohammadi
- Department of Chemistry, University of Kurdistan P.O. Box 66135-416 Sanandaj Iran +98 87 3324133 +98 87 33624133
| | - Mohammad Ghadermazi
- Department of Chemistry, University of Kurdistan P.O. Box 66135-416 Sanandaj Iran +98 87 3324133 +98 87 33624133
| | - Roya Mozafari
- Department of Chemistry, University of Kurdistan P.O. Box 66135-416 Sanandaj Iran +98 87 3324133 +98 87 33624133
| |
Collapse
|
4
|
Saman S, Balouch A, Talpur FN, Memon AA, Mousavi BM, Verpoort F. Green synthesis of MgO nanocatalyst by using
Ziziphus mauritiana
leaves and seeds for biodiesel production. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6199] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Syed Saman
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
| | - Aamna Balouch
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
| | - Farah Naz Talpur
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
| | - Ayaz Ali Memon
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
| | - Bibi Maryam Mousavi
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
| | - Francis Verpoort
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
- National Research Tomsk Polytechnic University Tomsk Russian Federation
- Ghent University‐Global Campus Songdo Incheon South Korea
| |
Collapse
|
5
|
Wongkamhaeng K, Wang J, Banas JA, Dawson DV, Holloway JA, Haes AJ, Denry I. Antimicrobial efficacy of platinum-doped silver nanoparticles. J Biomed Mater Res B Appl Biomater 2020; 108:3393-3401. [PMID: 32618123 PMCID: PMC7719576 DOI: 10.1002/jbm.b.34674] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/29/2020] [Accepted: 06/09/2020] [Indexed: 11/06/2022]
Abstract
Silver nanoparticles (AgNPs) have been proposed to combat oral infection due to their efficient ionic silver (Ag+ ) release. However, concentrations required for antimicrobial efficacy may not be therapeutically viable. In this work, platinum-doped silver nanoparticles (Pt-AgNPs) were explored to evaluate their potential for enhanced Ag+ release, which could lead to enhanced antimicrobial efficacy against S. aureus, P. aeruginosa, and E. coli. AgNPs doped with 0.5, 1, and 2 mol% platinum (Pt0.5 -AgNPs, Pt1 -AgNPs, and Pt2 -AgNPs) were synthesized by a chemical reduction method. Transmission electron microscopy revealed mixed morphologies of spherical, oval, and ribbon-like nanostructures. Surface-enhanced Raman scattering revealed that the surface of Pt-AgNPs was covered with up to 93% Pt. The amount of Ag+ released increased 16.3-fold for Pt2 -AgNPs, compared to AgNPs. The initial lag phase in bacterial growth curve was prolonged for Pt-AgNPs. This is consistent with a Ag+ release profile that exhibited an initial burst followed by sustained release. Doping AgNPs with platinum significantly increased the antimicrobial efficacy against all species. Pt2 -AgNPs exhibited the lowest minimum inhibitory concentrations, followed by Pt1 -AgNPs, Pt0.5 -AgNPs, and AgNPs, respectively. Doping AgNPs with a small amount of platinum promoted the release of Ag+ , based on the sacrificial anodic effect, and subsequently enhanced their antimicrobial efficacy.
Collapse
Affiliation(s)
- Kan Wongkamhaeng
- Department of Prosthodontics, University of Iowa College of Dentistry, Iowa City, Iowa
- Iowa Institute for Oral Health Research, University of Iowa College of Dentistry, Iowa City, Iowa
| | - Junnan Wang
- Department of Chemistry, University of Iowa, College of Liberal Arts and Sciences, Iowa City, Iowa
| | - Jeffrey A. Banas
- Iowa Institute for Oral Health Research, University of Iowa College of Dentistry, Iowa City, Iowa
| | - Deborah V. Dawson
- Iowa Institute for Oral Health Research, University of Iowa College of Dentistry, Iowa City, Iowa
| | - Julie A. Holloway
- Department of Prosthodontics, University of Iowa College of Dentistry, Iowa City, Iowa
| | - Amanda J. Haes
- Department of Chemistry, University of Iowa, College of Liberal Arts and Sciences, Iowa City, Iowa
| | - Isabelle Denry
- Department of Prosthodontics, University of Iowa College of Dentistry, Iowa City, Iowa
- Iowa Institute for Oral Health Research, University of Iowa College of Dentistry, Iowa City, Iowa
| |
Collapse
|
6
|
Khan IA, Sofian M, Badshah A, Khan MA, Imran M, Nadeem MA. Stable and Efficient PtRu Electrocatalysts Supported on Zn-BTC MOF Derived Microporous Carbon for Formic Acid Fuel Cells Application. Front Chem 2020; 8:367. [PMID: 32478034 PMCID: PMC7237749 DOI: 10.3389/fchem.2020.00367] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 04/08/2020] [Indexed: 12/04/2022] Open
Abstract
Highly efficient, well-dispersed PtRu alloy nanoparticles supported on high surface area microporous carbon (MPC) electrocatalysts, are prepared and tested for formic acid oxidation reaction (FAOR). The MPC is obtained by controlled carbonization of a zinc-benzenetricarboxylate metal-organic framework (Zn-BTC MOF) precursor at 950°C, and PtRu (30 wt.%) nanoparticles (NPs) are prepared and deposited via a polyol chemical reduction method. The structural and morphological characterization of the synthesized electrocatalysts is carried out using powder X-ray diffraction (PXRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), an energy dispersive X-ray (EDX) technique, and gas adsorption analysis (BET). The FAOR performance of the catalysts is investigated through cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS). A correlation between high electrochemical surface area (ECSA) and high FAOR performance of the catalysts is observed. Among the materials employed, Pt1Ru2/MPC 950 with a high electrochemical surface area (25.3 m2 g−1) consequently showed superior activity of the FAOR (Ir = 9.50 mA cm−2 and Jm = 2,403 mA mgPt-1) at room temperature, with improved tolerance and stability toward carbonaceous species. The superior electrochemical performance, and tolerance to CO-poisoning and long-term stability is attributed to the high surface area carbon support (1,455 m2 g−1) and high percentage loading of ruthenium (20 wt.%). The addition of Ru promotes the efficiency of electrocatalyst by offering FAOR via a bifunctional mechanism.
Collapse
Affiliation(s)
- Inayat Ali Khan
- Chemistry of Interfaces, Luleå University of Technology, Luleå, Sweden.,Catalysis and Nanomaterials Laboratory 27, Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Sofian
- Catalysis and Nanomaterials Laboratory 27, Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Amin Badshah
- Catalysis and Nanomaterials Laboratory 27, Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | | | - Muhammad Imran
- Department of Chemistry, Faculty of Sciences, King Khalid University, Abha, Saudi Arabia
| | - Muhammad Arif Nadeem
- Catalysis and Nanomaterials Laboratory 27, Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| |
Collapse
|
7
|
Christopher FC, Ponnusamy SK, Ganesan JJ, Ramamurthy R. Investigating the prospects of bacterial biosurfactants for metal nanoparticle synthesis - a comprehensive review. IET Nanobiotechnol 2019; 13:243-249. [PMID: 31053685 PMCID: PMC8676648 DOI: 10.1049/iet-nbt.2018.5184] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 12/04/2018] [Accepted: 12/16/2018] [Indexed: 11/04/2023] Open
Abstract
Establishing biological synthesis of nanoparticles is increasing nowadays in the field of nanotechnology. The search for an optimal source with durability, stability, capacity to withstand higher environmental conditions with excellent characteristics is yet to meet. Consequently, there is need to create an eco-friendly strategy for metal nanoparticle synthesis. One approach investigated in this review is the use of biosurfactants to enhance the synthesis biologically. In comparison with the other technologies, biosurfactants are less toxic and exhibit higher properties. This method is different from the conventional practice like physical and chemical methods. Several research studies represented that the biosurfactant influences the production of nanoparticles about 2-50 nm. In this manner, the research towards the biosurfactant has raised. This review also addressed the feasibility of biosurfactant and their benefits in the synthesis of metallic nanoparticles. The findings from this review can recommend a conceivable use of biosurfactant as a source for metal nanoparticle synthesis.
Collapse
Affiliation(s)
| | - Senthil Kumar Ponnusamy
- SSN-Centre for Radiation, Environmental Science and Technology (SSN-CREST), SSN College of Engineering, Chennai 603110, India.
| | - Janet Joshiba Ganesan
- Department of Chemical Engineering, SSN College of Engineering, Chennai 603110, India
| | - Racchana Ramamurthy
- Department of Chemical Engineering, SSN College of Engineering, Chennai 603110, India
| |
Collapse
|
8
|
Liao G, Fang J, Li Q, Li S, Xu Z, Fang B. Ag-Based nanocomposites: synthesis and applications in catalysis. NANOSCALE 2019; 11:7062-7096. [PMID: 30931457 DOI: 10.1039/c9nr01408j] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Ag-Based nanocomposites, including supported Ag nanocomposites and bimetallic Ag nanocomposites, have been intensively investigated as highly efficient catalysts because of their high activity and stability, easy preparation, low cost, and low toxicity. Herein, we systematically summarize and comprehensively evaluate versatile synthetic strategies for the preparation of Ag-based nanocomposites, and outline their recent advances in catalytic oxidation, catalytic reduction, photocatalysis and electrocatalysis. In addition, the challenges and prospects related to Ag-based nanocomposites for various catalytic applications are also discussed. In light of the most recent advances in Ag-based nanocomposites for catalysis applications, this review provides a comprehensive assessment on the material selection, synthesis and catalytic characteristics of these catalysts, which offers a strategic guide to build a close connection between Ag nanocomposites and catalysis applications.
Collapse
Affiliation(s)
- Guangfu Liao
- School of Environment and Civil Engineering, Dongguan University of Technology, Guangdong 523808, China.
| | | | | | | | | | | |
Collapse
|
9
|
Shubha P, Gowda ML, Namratha K, Manjunatha H, Byrappa K. In vitro and In vivo evaluation of green-hydrothermal synthesized ZnO nanoparticles. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.12.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
10
|
Muthuvinothini A, Stella S. Green synthesis of metal oxide nanoparticles and their catalytic activity for the reduction of aldehydes. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
11
|
Nguyen NHA, Padil VVT, Slaveykova VI, Černík M, Ševců A. Green Synthesis of Metal and Metal Oxide Nanoparticles and Their Effect on the Unicellular Alga Chlamydomonas reinhardtii. NANOSCALE RESEARCH LETTERS 2018; 13:159. [PMID: 29796771 PMCID: PMC5966349 DOI: 10.1186/s11671-018-2575-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 05/10/2018] [Indexed: 05/20/2023]
Abstract
Recently, the green synthesis of metal nanoparticles has attracted wide attention due to its feasibility and very low environmental impact. This approach was applied in this study to synthesise nanoscale gold (Au), platinum (Pt), palladium (Pd), silver (Ag) and copper oxide (CuO) materials in simple aqueous media using the natural polymer gum karaya as a reducing and stabilising agent. The nanoparticles' (NPs) zeta-potential, stability and size were characterised by Zetasizer Nano, UV-Vis spectroscopy and by electron microscopy. Moreover, the biological effect of the NPs (concentration range 1.0-20.0 mg/L) on a unicellular green alga (Chlamydomonas reinhardtii) was investigated by assessing algal growth, membrane integrity, oxidative stress, chlorophyll (Chl) fluorescence and photosystem II photosynthetic efficiency. The resulting NPs had a mean size of 42 (Au), 12 (Pt), 1.5 (Pd), 5 (Ag) and 180 (CuO) nm and showed high stability over 6 months. At concentrations of 5 mg/L, Au and Pt NPs only slightly reduced algal growth, while Pd, Ag and CuO NPs completely inhibited growth. Ag, Pd and CuO NPs showed strong biocidal properties and can be used for algae prevention in swimming pools (CuO) or in other antimicrobial applications (Pd, Ag), whereas Au and Pt lack these properties and can be ranked as harmless to green alga.
Collapse
Affiliation(s)
- Nhung H. A. Nguyen
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 2, 461 17 Liberec, Czech Republic
| | - Vinod Vellora Thekkae Padil
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 2, 461 17 Liberec, Czech Republic
| | - Vera I. Slaveykova
- Faculty of Sciences, Earth and Environmental Sciences, Institute F.-A. Forel, University of Geneva, Uni Carl Vogt, 66 Bvd Carl-Vogt, 1211 Geneva, Switzerland
| | - Miroslav Černík
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 2, 461 17 Liberec, Czech Republic
| | - Alena Ševců
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 2, 461 17 Liberec, Czech Republic
| |
Collapse
|
12
|
Veisi H, Pirhayati M, Kakanejadifard A, Mohammadi P, Abdi MR, Gholami J, Hemmati S. In Situ Green Synthesis of Pd Nanoparticles on Tannic Acid-Modified Magnetite Nanoparticles as a Green Reductant and Stabilizer Agent: Its Application as a Recyclable Nanocatalyst (Fe3O4@TA/Pd) for Reduction of 4-Nitrophenol and Suzuki Reactions. ChemistrySelect 2018. [DOI: 10.1002/slct.201702869] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hojat Veisi
- Department of Chemistry; Payame Noor University; Tehran Iran
| | - Mozhgan Pirhayati
- Department of Applied Chemistry; Faculty of Science; Malayer University; Malayer Iran
| | - Ali Kakanejadifard
- Department of Chemistry; Faculty of Science; Lorestan University; Khoramabad Iran
| | | | | | - Javad Gholami
- Department of Applied Chemistry; Faculty of Science; Malayer University; Malayer Iran
| | - Saba Hemmati
- Department of Chemistry; Payame Noor University; Tehran Iran
| |
Collapse
|
13
|
Salem MA, Bakr EA, El-Attar HG. Pt@Ag and Pd@Ag core/shell nanoparticles for catalytic degradation of Congo red in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 188:155-163. [PMID: 28709141 DOI: 10.1016/j.saa.2017.07.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 06/29/2017] [Accepted: 07/05/2017] [Indexed: 06/07/2023]
Abstract
Platinum/silver (Pt@Ag) and palladium/silver (Pd@Ag) core/shell NPs have been synthesized in two steps reaction using the citrate method. The progress of nanoparticle formation was followed by the UV/Vis spectroscopy. Transmission electron microscopy revealed spherical shaped core/shell nanoparticles with average particle diameter 32.17nm for Pt@Ag and 8.8nm for Pd@Ag. The core/shell NPs were further characterized by FT-IR and XRD. Reductive degradation of the Congo red dye was chosen to demonstrate the excellent catalytic activity of these core/shell nanostructures. The nanocatalysts act as electron mediators for the transfer of electrons from the reducing agent (NaBH4) to the dye molecules. Effect of reaction parameters such as nanocatalyst dose, dye and NaBH4 concentrations on the dye degradation was investigated. A comparison between the catalytic activities of both nanocatalysts was made to realize which of them the best in catalytic performance. Pd@Ag was the higher in catalytic activity over Pt@Ag. Such greater activity is originated from the smaller particle size and larger surface area. Pd@Ag nanocatalyst was catalytically stable through four subsequent reaction runs under the utilized reaction conditions. These findings can thus be considered as possible economical alternative for environmental safety against water pollution by dyes.
Collapse
Affiliation(s)
- Mohamed A Salem
- Departmentof Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt.
| | - Eman A Bakr
- Departmentof Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Heba G El-Attar
- Departmentof Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt; Academy of Scientific Research and Technology, 101 Kasr Al-Ainy St., 11516 Cairo, Egypt
| |
Collapse
|
14
|
Veerakumar P, Panneer Muthuselvam I, Thanasekaran P, Lin KC. Low-cost palladium decorated on m-aminophenol-formaldehyde-derived porous carbon spheres for the enhanced catalytic reduction of organic dyes. Inorg Chem Front 2018. [DOI: 10.1039/c7qi00553a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A novel method for the synthesis of recyclable Pd@PCS catalyst was applied for the reduction of CV, EY, and SY.
Collapse
Affiliation(s)
- Pitchaimani Veerakumar
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
- Institute of Atomic and Molecular Sciences
| | | | | | - King-Chuen Lin
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
- Institute of Atomic and Molecular Sciences
| |
Collapse
|
15
|
Cong C, Nakayama S, Maenosono S, Harada M. Microwave-Assisted Polyol Synthesis of Pt/Pd and Pt/Rh Bimetallic Nanoparticles in Polymer Solutions Prepared by Batch and Continuous-Flow Processing. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b03154] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cong Cong
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Sayaka Nakayama
- Department
of Health Science and Clothing Environment, Faculty of Human Life
and Environment, Nara Women’s University, Nara 630-8506, Japan
| | - Shinya Maenosono
- School of
Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Masafumi Harada
- Department
of Health Science and Clothing Environment, Faculty of Human Life
and Environment, Nara Women’s University, Nara 630-8506, Japan
| |
Collapse
|
16
|
Badma Priya D, Asharani IV. Catalytic reduction in 4‐nitrophenol using
Actinodaphne madraspatana
Bedd leaves‐mediated palladium nanoparticles. IET Nanobiotechnol 2017. [DOI: 10.1049/iet-nbt.2017.0027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
17
|
Flower-Like CuO/ZnO Hybrid Hierarchical Nanostructures Grown on Copper Substrate: Glycothermal Synthesis, Characterization, Hydrophobic and Anticorrosion Properties. MATERIALS 2017; 10:ma10070697. [PMID: 28773056 PMCID: PMC5551740 DOI: 10.3390/ma10070697] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 05/28/2017] [Accepted: 06/21/2017] [Indexed: 11/17/2022]
Abstract
In this work we have demonstrated a facile formation of CuO nanostructures on copper substrates by the oxidation of copper foil in ethylene glycol (EG) at 80 °C. On immersing a prepared CuO film into a solution containing 0.1 g Zn(acac)₂ in 20 mL EG for 8 h, ZnO flower-like microstructures composed of hierarchical three-dimensional (3D) aggregated nanoparticles and spherical architectures were spontaneously formed at 100 °C. The as-synthesized thin films and 3D microstructures were characterized using XRD, SEM, and EDS techniques. The effects of sodium dodecyl sulphate (SDS), cetyltrimethylammonium bromide (CTAB), and polyethylene glycol (PEG) 6000 as surfactants and stabilizers on the morphology of the CuO and ZnO structures were discussed. Possible growth mechanisms for the controlled organization of primary building units into CuO nanostructures and 3D flower-like ZnO architectures were proposed. The hydrophobic property of the products was characterized by means of water contact angle measurement. After simple surface modification with stearic acid and PDMS, the resulting films showed hydrophobic and even superhydrophobic characteristics due to their special surface energy and nano-microstructure morphology. Importantly, stable superhydrophobicity with a contact angle of 153.5° was successfully observed for CuO-ZnO microflowers after modification with PDMS. The electrochemical impedance measurements proved that the anticorrosion efficiency for the CuO/ZnO/PDMS sample was about 99%.
Collapse
|
18
|
Sundeep D, Vijaya Kumar T, Rao PSS, Ravikumar RVSSN, Gopala Krishna A. Green synthesis and characterization of Ag nanoparticles from Mangifera indica leaves for dental restoration and antibacterial applications. Prog Biomater 2017; 6:57-66. [PMID: 28470622 PMCID: PMC5433963 DOI: 10.1007/s40204-017-0067-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 04/26/2017] [Indexed: 11/30/2022] Open
Abstract
Green synthesis has gained a wide recognition as clean synthesis technique in the recent years. In the present investigation, silver nanoparticles were prepared by a novel green synthesis technique using Mangifera indica (Mango leaves) and found to be successfully used in dental applications. The prepared samples were spectroscopically characterized by XRD, PSA, SEM with EDS, and UV-Vis spectroscopy. The crystalline size and lattice strain were analyzed from the XRD data which were counter-verified by W-H plots and particle size analyzer. The XRD peaks revealed that average crystalline size of the as-synthesized Ag nanoparticles was of 32.4 nm with face-centered cubic structure. This was counter-verified by particle size analyzer and Williamson-Hall plots and found to be 31.7 and 33.21 nm in the former and latter, and the crystalline size of Ag NPs could be concluded as 32 ± 2 nm. The morphological structure of the prepared sample was studied through SEM images and the chemical composition was analyzed by the EDS data. The band energy was calculated as 393 nm from UV-Vis, which confirmed the synthesized sample as Ag nanoparticles. To improve the mechanical bonding and hardness of the dentally used glass ionomer cement (GIC), the synthesized silver nanoparticles were incorporated into GIC in 2% weight ratio. The morphology of the prepared specimens was studied using optical microscope images. Vickers microhardness and Monsanto hardness tests were performed on GIC, GIC reinforced with microsilver particles and GIC reinforced with nanosilver particles and the latter derived a promising results. The results of the Monsanto tests confirmed the increase in hardness of the GIC reinforced with AgNps as 14.2 kg/cm2 compared to conventional GIC and GIC reinforced with silver microparticle as 11.7 and 9.5 kg/cm2. Similarly the Vickers hardness results exhibited the enhanced hardness of GIC-reinforced AgNps as 82 VHN compared to GIC as 54 and GIC-reinforced silver microparticles as 61 VHN. The antibacterial activity of AgNPs was tested by a well-diffusion method on Escherichia coli and Staphylococcus aureus bacteria, and the obtained results exhibited a promising antibacterial activity of the as-synthesized nanoparticles.
Collapse
Affiliation(s)
- Dola Sundeep
- School of Nanotechnology, Center for Nano Science and Technology, Institute of Science and Technology (IST), Jawaharlal Nehru Technological University, Kakinada, Andhra Pradesh, 533 003, India.
| | - T Vijaya Kumar
- Department of Mechanical Engineering, K L University, Green Fields, Vaddeswaram, Guntur, Andhra Pradesh, 522 520, India
| | - P S Subba Rao
- School of Nanotechnology, Center for Nano Science and Technology, Institute of Science and Technology (IST), Jawaharlal Nehru Technological University, Kakinada, Andhra Pradesh, 533 003, India
| | - R V S S N Ravikumar
- Department of Physics, University College of Sciences, Acharya Nagarjuna University, Guntur, Andhra Pradesh, India
| | - A Gopala Krishna
- School of Nanotechnology, Center for Nano Science and Technology, Institute of Science and Technology (IST), Jawaharlal Nehru Technological University, Kakinada, Andhra Pradesh, 533 003, India
| |
Collapse
|
19
|
Veisi H, Pirhayati M, Mohammadi P, Abdi MR, Gholami J. WITHDRAWN: Magnetite nanoparticles coated with tannic acid as a green reductant and stabilizer sorbent for palladium ions: Synthetic application of Fe3O4@TA-Pd NPs as magnetically separable and reusable nanocatalyst for reduction of 4-nitrophenol and Suzuki reactions. Catal Today 2017. [DOI: 10.1016/j.cattod.2017.02.023] [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]
|
20
|
Subha V, Ramadoss P, Renganathan S. Incorporation of biotransformed silver nanoparticles in plant polysaccarides resin and their effect on sustained drug release. POLYMER SCIENCE SERIES B 2016. [DOI: 10.1134/s1560090416010073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
21
|
Marulasiddeshwara M, Kumar PR. Synthesis of Pd(0) nanocatalyst using lignin in water for the Mizoroki–Heck reaction under solvent-free conditions. Int J Biol Macromol 2016; 83:326-34. [DOI: 10.1016/j.ijbiomac.2015.11.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 10/31/2015] [Accepted: 11/12/2015] [Indexed: 11/30/2022]
|
22
|
Biogenic synthesis of cellulose supported Pd(0) nanoparticles using hearth wood extract of Artocarpus lakoocha Roxb — A green, efficient and versatile catalyst for Suzuki and Heck coupling in water under microwave heating. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.09.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
|
23
|
Castro L, Blázquez ML, González F, Muñoz JÁ, Ballester A. Biosynthesis of silver and platinum nanoparticles using orange peel extract: characterisation and applications. IET Nanobiotechnol 2015; 9:252-8. [DOI: 10.1049/iet-nbt.2014.0063] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Affiliation(s)
- Laura Castro
- Department of Materials Science and Metallurgical EngineeringComplutense University of MadridAv. Complutense s/n28040MadridSpain
| | - María Luisa Blázquez
- Department of Materials Science and Metallurgical EngineeringComplutense University of MadridAv. Complutense s/n28040MadridSpain
| | - Felisa González
- Department of Materials Science and Metallurgical EngineeringComplutense University of MadridAv. Complutense s/n28040MadridSpain
| | - Jesús Ángel Muñoz
- Department of Materials Science and Metallurgical EngineeringComplutense University of MadridAv. Complutense s/n28040MadridSpain
| | - Antonio Ballester
- Department of Materials Science and Metallurgical EngineeringComplutense University of MadridAv. Complutense s/n28040MadridSpain
| |
Collapse
|
24
|
Ehret E, Beyou E, Mamontov GV, Bugrova TA, Prakash S, Aouine M, Domenichini B, Cadete Santos Aires FJ. Bimetallic PdAg nanoparticle arrays from monolayer films of diblock copolymer micelles. NANOSCALE 2015; 7:13239-13248. [PMID: 26190767 DOI: 10.1039/c5nr02215k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The self-assembly technique provides a highly efficient route to generate well-ordered structures on a nanometer scale. In this paper, well-ordered arrays of PdAg alloy nanoparticles on flat substrates with narrow distributions of particle size (6-7 nm) and interparticle spacing (about 60 nm) were synthesized by the block copolymer micelle approach. A home-made PS-b-P4VP diblock copolymer was prepared to obtain a micellar structure in toluene. Pd and Ag salts were then successfully loaded in the micellar core of the PS-b-P4VP copolymer. A self-assembled monolayer of the loaded micelles was obtained by dipping the flat substrate in the solution. At this stage, the core of the micelles was still loaded with the metal precursor rather than with a metal. Physical and chemical reducing methods were used to reduce the metal salts embedded in the P4VP core into PdAg nanoparticles. HRTEM and EDX indicated that Pd-rich PdAg alloy nanoparticles were synthesized by chemical or physical reduction; UV-visible spectroscopy observations confirmed that metallic PdAg nanoparticles were quickly formed after chemical reduction; XPS measurements revealed that the PdAg alloy nanoparticles were in a metallic state after a short time of exposure to O2 plasma and after hydrazine reduction.
Collapse
Affiliation(s)
- E Ehret
- Institut de Recherche sur la Catalyse et l'Environnement de Lyon, IRCELYON, CNRS, Université Lyon 1, UMR 5256, 2 avenue Albert Einstein, 69626 Villeurbanne Cedex, France.
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Passos ML, Costa D, Lima JL, Saraiva MLM. Sequential injection technique as a tool for the automatic synthesis of silver nanoparticles in a greener way. Talanta 2015; 133:45-51. [DOI: 10.1016/j.talanta.2014.04.089] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 01/28/2014] [Accepted: 04/21/2014] [Indexed: 10/25/2022]
|
26
|
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.
Collapse
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
| |
Collapse
|
27
|
Veisi H, Ghorbani-Vaghei R, Hemmati S, Aliani MH, Ozturk T. Green and effective route for the synthesis of monodispersed palladium nanoparticles using herbal tea extract (Stachys lavandulifolia) as reductant, stabilizer and capping agent, and their application as homogeneous and reusable catalyst in Suzuki couplin. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3243] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hojat Veisi
- Department of Chemistry; Payame Noor University; 19395-4697 Tehran Iran
| | - Ramin Ghorbani-Vaghei
- Department of Organic Chemistry, Faculty of Chemistry; Bu-Ali Sina University; Hamedan 6517838683 Iran
| | - Saba Hemmati
- Department of Organic Chemistry, Faculty of Chemistry; Bu-Ali Sina University; Hamedan 6517838683 Iran
| | - Majid Haji Aliani
- Department of Chemistry; Payame Noor University; 19395-4697 Tehran Iran
| | - Turan Ozturk
- Department of Chemistry, Faculty of Science; Istanbul Technical University; Maslak Istanbul 34469 Turkey
- TUBITAK-UME; Chemistry Group Laboratories; PO Box 54 41471 Gebze Kocaeli Turkey
| |
Collapse
|
28
|
Ohkubo Y, Nakagawa T, Seino S, Kugai J, Yamamoto TA, Nitani H, Niwa Y. X-ray-induced reduction of Au ions in an aqueous solution in the presence of support materials and in situ time-resolved XANES measurements. JOURNAL OF SYNCHROTRON RADIATION 2014; 21:1148-1152. [PMID: 25178005 PMCID: PMC4333730 DOI: 10.1107/s1600577514012703] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Accepted: 05/31/2014] [Indexed: 06/03/2023]
Abstract
Synchrotron X-ray-induced reduction of Au ions in an aqueous solution with or without support materials is reported. To clarify the process of radiation-induced reduction of metal ions in aqueous solutions in the presence of carbon particles as support materials, in situ time-resolved XANES measurements of Au ions were performed under synchrotron X-ray irradiation. XANES spectra were obtained only when hydrophobic carbon particles were added to the precursor solution containing Au ions. Changes in the shape of the XANES spectra indicated a rapid reduction from ionic to metallic Au in the precursor solution owing to synchrotron X-ray irradiation. In addition, the effects of the wettability of the carbon particles on the deposited Au metallic spots were examined. The deposited Au metallic spots were different depending on the relationship of surface charges between metal precursors and support materials. Moreover, a Au film was obtained as a by-product only when hydrophilic carbon particles were added to the precursor solution containing the Au ions.
Collapse
Affiliation(s)
- Yuji Ohkubo
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takashi Nakagawa
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Satoshi Seino
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Junichiro Kugai
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takao A. Yamamoto
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hiroaki Nitani
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Yasuhiro Niwa
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| |
Collapse
|
29
|
Płaza GA, Chojniak J, Banat IM. Biosurfactant mediated biosynthesis of selected metallic nanoparticles. Int J Mol Sci 2014; 15:13720-37. [PMID: 25110864 PMCID: PMC4159821 DOI: 10.3390/ijms150813720] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 06/27/2014] [Accepted: 07/07/2014] [Indexed: 12/11/2022] Open
Abstract
Developing a reliable experimental protocol for the synthesis of nanomaterials is one of the challenging topics in current nanotechnology particularly in the context of the recent drive to promote green technologies in their synthesis. The increasing need to develop clean, nontoxic and environmentally safe production processes for nanoparticles to reduce environmental impact, minimize waste and increase energy efficiency has become essential in this field. Consequently, recent studies on the use of microorganisms in the synthesis of selected nanoparticles are gaining increased interest as they represent an exciting area of research with considerable development potential. Microorganisms are known to be capable of synthesizing inorganic molecules that are deposited either intra- or extracellularly. This review presents a brief overview of current research on the use of biosurfactants in the biosynthesis of selected metallic nanoparticles and their potential importance.
Collapse
Affiliation(s)
- Grażyna A Płaza
- Department of Environmental Microbiology, Institute for Ecology of Industrial Areas,6 Kossutha Str., 40-844 Katowice, Poland.
| | - Joanna Chojniak
- Department of Environmental Microbiology, Institute for Ecology of Industrial Areas,6 Kossutha Str., 40-844 Katowice, Poland.
| | - Ibrahim M Banat
- School of Biomedical Sciences, University of Ulster, Coleraine BT52 1SA, N. Ireland, UK.
| |
Collapse
|
30
|
Zhu YJ, Chen F. Microwave-assisted preparation of inorganic nanostructures in liquid phase. Chem Rev 2014; 114:6462-555. [PMID: 24897552 DOI: 10.1021/cr400366s] [Citation(s) in RCA: 317] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
| | | |
Collapse
|
31
|
Biosynthesis and Characterization of Pd and Pt Nanoparticles Using Piper betle L. Plant in a Photoreduction Method. J CLUST SCI 2014. [DOI: 10.1007/s10876-014-0715-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
32
|
Azizi-Toupkanloo H, Goharshadi EK, Nancarrow P. Structural, electrical, and rheological properties of palladium/silver bimetallic nanoparticles prepared by conventional and ultrasonic-assisted reduction methods. ADV POWDER TECHNOL 2014. [DOI: 10.1016/j.apt.2013.11.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
33
|
Vignesh V, Felix Anbarasi K, Karthikeyeni S, Sathiyanarayanan G, Subramanian P, Thirumurugan R. A superficial phyto-assisted synthesis of silver nanoparticles and their assessment on hematological and biochemical parameters in Labeo rohita (Hamilton, 1822). Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.04.011] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
34
|
Metallic nanoparticles and their medicinal potential. Part I: gold and silver colloids. Ther Deliv 2013; 4:859-73. [DOI: 10.4155/tde.13.55] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The article highlights the synthesis, properties and recent advances in therapeutic possibilities of metallic nanoparticles. Nanometallic structures that behave as drug-carrying agents, gene regulators, imaging agents and photoresponsive assemblies have been discussed in the context of cells and many debilitating diseases. These structures not only act as alternatives to molecule-based systems, but also possess new physical and chemical properties, which confer substantive advantages in medicinal field.
Collapse
|
35
|
Boomi P, Prabu HG. Synthesis, characterization and antibacterial analysis of polyaniline/Au–Pd nanocomposite. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.03.053] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
36
|
Moudir N, Boukennous Y, Moulaï-Mostefa N, Bozetine I, Maoudj M, Kamel N, Kamel Z, Moudir D. Preparation of Silver Powder used for Solar Cell Paste by Reduction Process. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.egypro.2013.07.134] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
37
|
Silver nanoparticles: Antibacterial activity against wound isolates & invitro cytotoxic activity on Human Caucasian colon adenocarcinoma. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2012. [DOI: 10.1016/s2222-1808(12)60129-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
38
|
Belousov OV, Belousova NV, Sirotina AV, Solovyov LA, Zhyzhaev AM, Zharkov SM, Mikhlin YL. Formation of bimetallic Au-Pd and Au-Pt nanoparticles under hydrothermal conditions and microwave irradiation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:11697-11703. [PMID: 21846095 DOI: 10.1021/la202686x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The reduction of chlorocomplexes of gold(III) from muriatic solutions by nanocrystal powders of palladium and platinum at 110 and 130 °C under hydrothermal conditions and the action of microwave irradiation has been investigated. The structure and composition of the solid phase have been characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and chemical methods. Bimetallic particles with a core-shell structure have been revealed. The obtained particles are established to have a core of the metal reductant covered with a substitutional solid (Au, Pd) solution in case of palladium, and isolated by a gold layer in the case of platinum. The main reason for such a difference is the ratio between the rates of aggregation and reduction. It has been shown by the example of the Au-Pd system that the use of microwave irradiation allows us not only to accelerate the synthesis of particles but also to obtain more homogeneous materials in comparison with conventional heating.
Collapse
Affiliation(s)
- Oleg V Belousov
- Institute of Chemistry and Chemical Technology of the Russian Academy of Sciences, Krasnoyarsk 660049, Russia.
| | | | | | | | | | | | | |
Collapse
|
39
|
Guzman M, Dille J, Godet S. Synthesis and antibacterial activity of silver nanoparticles against gram-positive and gram-negative bacteria. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2011; 8:37-45. [PMID: 21703988 DOI: 10.1016/j.nano.2011.05.007] [Citation(s) in RCA: 413] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Revised: 04/15/2011] [Accepted: 05/04/2011] [Indexed: 11/30/2022]
Abstract
UNLABELLED Synthesis of nanosized particles with antibacterial properties is of great interest in the development of new pharmaceutical products. Silver nanoparticles (Ag NPs) are known to have inhibitory and bactericidal effects. In this article we present the synthesis of Ag NPs prepared by chemical reduction from aqueous solutions of silver nitrate, containing a mixture of hydrazine hydrate and sodium citrate as reductants and sodium dodecyl sulfate as a stabilizer. The results of the characterization of the Ag NPs show agglomerates of grains with a narrow size distribution (from 40 to 60 nm), whereas the radii of the individual particles are between 10 and 20 nm. Finally, the antibacterial activity was measured by the Kirby-Bauer method. The results showed reasonable bactericidal activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. The standard dilution micromethod, determining the minimum inhibitory concentration leading to inhibition of bacterial growth, is still under way. Preliminary results have been obtained. FROM THE CLINICAL EDITOR In this paper the synthesis of Ag NPs via chemical reduction from aqueous solutions is discussed. Reasonable bactericidal activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus was demonstrated.
Collapse
Affiliation(s)
- Maribel Guzman
- Pontificia Universidad Católica del Perú, Engineering Department, Lima, Peru.
| | | | | |
Collapse
|
40
|
Oikawa H. Hybridized Organic Nanocrystals for Optically Functional Materials. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2011. [DOI: 10.1246/bcsj.20100215] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
41
|
Vinod VTP, Saravanan P, Sreedhar B, Devi DK, Sashidhar RB. A facile synthesis and characterization of Ag, Au and Pt nanoparticles using a natural hydrocolloid gum kondagogu (Cochlospermum gossypium). Colloids Surf B Biointerfaces 2010; 83:291-8. [PMID: 21185161 DOI: 10.1016/j.colsurfb.2010.11.035] [Citation(s) in RCA: 161] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Revised: 11/22/2010] [Accepted: 11/25/2010] [Indexed: 11/26/2022]
Abstract
An environmentally benign method for the synthesis of noble metal nanoparticles has been reported using aqueous solution of gum kondagogu (Cochlospermum gossypium). Both the synthesis, as well as stabilization of colloidal Ag, Au and Pt nanoparticles has been accomplished in an aqueous medium containing gum kondagogu. The colloidal suspensions so obtained were found to be highly stable for prolonged period, without undergoing any oxidation. SEM-EDXA, UV-vis spectroscopy, XRD, FTIR and TEM techniques were used to characterize the Ag, Au and Pt nanoparticles. FTIR analysis indicates that -OH groups present in the gum matrix were responsible for the reduction of metal cations into nanoparticles. UV-vis studies showed a distinct surface plasmon resonance at 412 and 525 nm due to the formation of Au and Ag nanoparticles, respectively, within the gum network. XRD studies indicated that the nanoparticles were crystalline in nature with face centered cubic geometry. The noble metal nanoparticles prepared in the present study appears to be homogeneous with the particle size ranging between 2 and 10 nm, as evidenced by TEM analysis. The Ag and Au nanoparticles formed were in the average size range of 5.5±2.5 nm and 7.8±2.3 nm; while Pt nanoparticles were in the size range of 2.4±0.7 nm, which were considerably smaller than Ag and Au nanoparticles. The present approach exemplifies a totally green synthesis using the plant derived natural product (gum kondagogu) for the production of noble metal nanoparticles and the process can also be extended to the synthesis of other metal oxide nanoparticles.
Collapse
Affiliation(s)
- V T P Vinod
- Jonaki, Board of Radiation and Isotope Technology, Department of Atomic Energy, CCMB Campus, Uppal Road, Hyderabad 500 007, Andhra Pradesh, India
| | | | | | | | | |
Collapse
|
42
|
Maljusch A, Nagaiah TC, Schwamborn S, Bron M, Schuhmann W. Pt−Ag Catalysts as Cathode Material for Oxygen-Depolarized Electrodes in Hydrochloric Acid Electrolysis. Anal Chem 2010; 82:1890-6. [DOI: 10.1021/ac902620g] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Artjom Maljusch
- Analytische Chemie - Elektroanalytik & Sensorik, Ruhr-University Bochum, D-44780 Bochum, Germany
| | - Tharamani Chikka Nagaiah
- Analytische Chemie - Elektroanalytik & Sensorik, Ruhr-University Bochum, D-44780 Bochum, Germany
| | - Stefanie Schwamborn
- Analytische Chemie - Elektroanalytik & Sensorik, Ruhr-University Bochum, D-44780 Bochum, Germany
| | - Michael Bron
- Analytische Chemie - Elektroanalytik & Sensorik, Ruhr-University Bochum, D-44780 Bochum, Germany
| | - Wolfgang Schuhmann
- Analytische Chemie - Elektroanalytik & Sensorik, Ruhr-University Bochum, D-44780 Bochum, Germany
| |
Collapse
|
43
|
Long NV, Chien ND, Hayakawa T, Hirata H, Lakshminarayana G, Nogami M. The synthesis and characterization of platinum nanoparticles: a method of controlling the size and morphology. NANOTECHNOLOGY 2010; 21:035605. [PMID: 19966396 DOI: 10.1088/0957-4484/21/3/035605] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this paper, Pt nanoparticles with good shapes of nanocubes and nano-octahedra and well-controlled sizes in the range 5-7 and 8-12 nm, respectively, have been successfully synthesized. The modified polyol method by adding silver nitrate and varying the molar ratio of the solutions of silver nitrate and H(2)PtCl(6) has been used to produce Pt nanoparticles of the size and shape to be controlled. The size and morphology of Pt nanoparticles have been studied by transmission electron microscopy (TEM) and high resolution TEM (HRTEM). The results have shown that their very sharp and good shapes exist in the main forms of cubic, cuboctahedral, octahedral and tetrahedral shapes directly related to the crystal nucleation along various directions of the [100] cubic, [111] octahedral and [111] tetrahedral facets during synthesis. In particular, various irregular and new shapes of Pt nanoparticles have been found. Here, it is concluded that the role of silver ions has to be considered as an important factor for promoting and controlling the development of Pt nanoparticles of [100] cubic, [111] octahedral and [111] tetrahedral facets, and also directly orienting the growth and formation of Pt nanoparticles.
Collapse
Affiliation(s)
- Nguyen Viet Long
- Department of Materials Science and Engineering, Nagoya Institute of Technology, Showa-ku, Nagoya, Japan.
| | | | | | | | | | | |
Collapse
|
44
|
Luo YL, Xu F, Chen YS, Jia CY. Assembly, characterization of Ag nanoparticles in P(AAm-co-NVP)/CS semi-IPN, and swelling of the resulting composite hydrogels. Polym Bull (Berl) 2010. [DOI: 10.1007/s00289-010-0248-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
45
|
Nagaiah TC, Maljusch A, Chen X, Bron M, Schuhmann W. Visualization of the Local Catalytic Activity of Electrodeposited Pt-Ag Catalysts for Oxygen Reduction by means of SECM. Chemphyschem 2009; 10:2711-8. [DOI: 10.1002/cphc.200900496] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
46
|
Filippo E, Serra A, Manno D. Self-assembly and branching of sucrose stabilized silver nanoparticles by microwave assisted synthesis: From nanoparticles to branched nanowires structures. Colloids Surf A Physicochem Eng Asp 2009. [DOI: 10.1016/j.colsurfa.2009.07.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
47
|
Kinge S, Crego-Calama M, Reinhoudt DN. Self-assembling nanoparticles at surfaces and interfaces. Chemphyschem 2008; 9:20-42. [PMID: 18080256 DOI: 10.1002/cphc.200700475] [Citation(s) in RCA: 240] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Nanoparticles are the focus of much attention due to their astonishing properties and numerous possibilities for applications in nanotechnology. For realising versatile functions, assembly of nanoparticles in regular patterns on surfaces and at interfaces is required. Assembling nanoparticles generates new nanostructures, which have unforeseen collective, intrinsic physical properties. These properties can be exploited for multipurpose applications in nanoelectronics, spintronics, sensors, etc. This review surveys different techniques, currently employed and being developed, for assembling nanoparticles in to ordered nanostructures. In this endeavour, the principles and methods involved in the development of assemblies are discussed. Subsequently, different possibilities of nanoparticle-based nanostructures, obtained in multi-dimensions, are presented.
Collapse
Affiliation(s)
- Sachin Kinge
- Laboratory of Supramolecular Chemistry and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
| | | | | |
Collapse
|
48
|
Ferrando R, Jellinek J, Johnston RL. Nanoalloys: From Theory to Applications of Alloy Clusters and Nanoparticles. Chem Rev 2008; 108:845-910. [PMID: 18335972 DOI: 10.1021/cr040090g] [Citation(s) in RCA: 1716] [Impact Index Per Article: 107.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Riccardo Ferrando
- Dipartimento di Fisica, Universita di Genova, INFM and IMEM/CNR, Via Dodecaneso 33, Genova, I16146, Italy, Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439, and School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom
| | - Julius Jellinek
- Dipartimento di Fisica, Universita di Genova, INFM and IMEM/CNR, Via Dodecaneso 33, Genova, I16146, Italy, Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439, and School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom
| | - Roy L. Johnston
- Dipartimento di Fisica, Universita di Genova, INFM and IMEM/CNR, Via Dodecaneso 33, Genova, I16146, Italy, Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439, and School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom
| |
Collapse
|
49
|
Gold SH, Bruce RW, Fliflet AW, Lewis D, Kurihara LK, Imam MA. System for continuous production of nanophase materials using a microwave-driven polyol process. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2007; 78:023901. [PMID: 17578117 DOI: 10.1063/1.2435588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
A prototype system is described for the large scale, continuous production of nanophase metals, metal oxides, and other nanophase materials using the polyol process. The polyol process employs an organic solvent such as ethylene glycol to reduce a metal oxide/metal salt at high temperature to the metal oxide or metal. The system employs a 6 kW, 2.45 GHz microwave source to rapidly heat the continuously flowing solution to a desired process temperature as it flows through a silica tube placed along the center line of a section of waveguide.
Collapse
Affiliation(s)
- Steven H Gold
- Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375, USA
| | | | | | | | | | | |
Collapse
|