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Roy S, Roy J, Guo B. Nanomaterials as multimodal photothermal agents (PTAs) against 'Superbugs'. J Mater Chem B 2023; 11:2287-2306. [PMID: 36857688 DOI: 10.1039/d2tb02396b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Superbugs, also known as multidrug-resistant bacteria, have become a lethal and persistent threat due to their unresponsiveness toward conventional antibiotics. The main reason for this is that superbugs can rapidly mutate and restrict any foreign drug/molecule in their vicinity. Herein, nanomaterial-mediated therapies have set their path and shown burgeoning efficiency toward the ablation of superbugs. Notably, treatment modalities like photothermal therapy (PTT) have shown prominence in killing multidrug-resistant bacteria with their ability to generate local heat shock-mediated hyperthermia in such species. However, photothermal treatment has some serious limitations, such as high cost, complexity, and even toxicity to some extent. Hence, it is important to resolve such shortcomings of PTTs as they provide substantial tissue penetration. This is why multimodal PTTs have emerged and taken over this domain of research for the past few years. In this work, we have summarized and critically reviewed such exceptional works of recent times and provided a perspective to enhance their efficiencies. Profoundly, we discuss the design rationales of some novel photothermal agents (PTAs) and shed light on their mechanisms. Finally, challenges for PTT-derived multimodal therapy are presented, and capable synergistic bactericidal prospects are anticipated.
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Affiliation(s)
- Shubham Roy
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Science, Harbin Institute of Technology, Shenzhen 518055, China.
| | - Jhilik Roy
- Department of Physics, Jadavpur University, Kolkata 700032, India
| | - Bing Guo
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Science, Harbin Institute of Technology, Shenzhen 518055, China.
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2
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Araújo Lima EMD, Holanda VN, Ratkovski GP, Silva WVD, Nascimento PHD, Figueiredo RCBQD, de Melo CP. A new biocompatible silver/polypyrrole composite with in vitro antitumor activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112314. [PMID: 34474865 DOI: 10.1016/j.msec.2021.112314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 06/30/2021] [Accepted: 07/07/2021] [Indexed: 12/01/2022]
Abstract
We used an in situ chemical oxidation method to prepare a new composite of silver nanoparticles (AgNPs) with polypyrrole (PPy), whose properties were optimized through a 23-factorial design of the synthesis conditions. The successful formation of the AgNPs/PPy composite was confirmed by UV-Visible and FTIR spectroscopies. Transmission electron microscopy revealed the presence of AgNPs smaller than 100 nm, dispersed into the PPy matrix. This hybrid composite exhibits a blue fluorescence emission after excitation in the ultraviolet region. In MTT assays, the AgNPs/PPy composite exhibited low cytotoxicity toward non-tumoral cell lines (fibroblast, Vero, and macrophages) and selectively inhibited the viability of HeLa cells. The AgNPs/PPy composite induces ultrastructural changes in HeLa cells that are consistent with the noticeable selectivity exhibited toward them when compared to its action against non-tumoral cell lineages. Also, the AgNPs/PPy exhibited a hemolytic activity below 14% for all blood groups tested, at concentrations up to 125 μg/mL. These results suggest that the AgNPs/PPy composite has a promising potential for use as an antitumoral agent.
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Affiliation(s)
- Elton Marlon de Araújo Lima
- Pós-graduação em Ciência de Materiais, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil; Laboratório de Biologia Celular de Patógenos, Instituto Aggeu Magalhães, Departamento de Microbiologia, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, Pernambuco, Brazil; Departamento de Física, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil
| | - Vanderlan Nogueira Holanda
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, PE, Brazil; Laboratório de Biologia Celular de Patógenos, Instituto Aggeu Magalhães, Departamento de Microbiologia, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, Pernambuco, Brazil
| | - Gabriela Plautz Ratkovski
- Pós-graduação em Física, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil; Departamento de Física, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil
| | - Welson Vicente da Silva
- Laboratório de Biologia Celular de Patógenos, Instituto Aggeu Magalhães, Departamento de Microbiologia, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, Pernambuco, Brazil
| | - Pedro Henrique do Nascimento
- Laboratório de Biologia Celular de Patógenos, Instituto Aggeu Magalhães, Departamento de Microbiologia, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, Pernambuco, Brazil
| | - Regina Celia Bressan Queiroz de Figueiredo
- Laboratório de Biologia Celular de Patógenos, Instituto Aggeu Magalhães, Departamento de Microbiologia, Avenida Professor Moraes Rego, 1235, 50670-901 Recife, Pernambuco, Brazil
| | - Celso Pinto de Melo
- Pós-graduação em Ciência de Materiais, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil; Departamento de Física, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901 Recife, Pernambuco, Brazil.
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3
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Kashihara K, Uto Y, Nakajima T. Size-controlled in situ synthesis of metal–polymer nanocomposite films using a CO2 laser. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03481-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Lanzalaco S, Molina BG. Polymers and Plastics Modified Electrodes for Biosensors: A Review. Molecules 2020; 25:E2446. [PMID: 32456314 PMCID: PMC7287907 DOI: 10.3390/molecules25102446] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 02/07/2023] Open
Abstract
Polymer materials offer several advantages as supports of biosensing platforms in terms of flexibility, weight, conformability, portability, cost, disposability and scope for integration. The present study reviews the field of electrochemical biosensors fabricated on modified plastics and polymers, focusing the attention, in the first part, on modified conducting polymers to improve sensitivity, selectivity, biocompatibility and mechanical properties, whereas the second part is dedicated to modified "environmentally friendly" polymers to improve the electrical properties. These ecofriendly polymers are divided into three main classes: bioplastics made from natural sources, biodegradable plastics made from traditional petrochemicals and eco/recycled plastics, which are made from recycled plastic materials rather than from raw petrochemicals. Finally, flexible and wearable lab-on-a-chip (LOC) biosensing devices, based on plastic supports, are also discussed. This review is timely due to the significant advances achieved over the last few years in the area of electrochemical biosensors based on modified polymers and aims to direct the readers to emerging trends in this field.
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Affiliation(s)
- Sonia Lanzalaco
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ d’Eduard Maristany, 10-14, Building I, E-08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal Besòs (EEBE), C/ d’Eduard Maristany 10-14, Edifici IS, 08019 Barcelona, Spain
| | - Brenda G. Molina
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/ d’Eduard Maristany, 10-14, Building I, E-08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, Campus Diagonal Besòs (EEBE), C/ d’Eduard Maristany 10-14, Edifici IS, 08019 Barcelona, Spain
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5
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Renu S, Shivashangari KS, Ravikumar V. Incorporated plant extract fabricated silver/poly-D,l-lactide-co-glycolide nanocomposites for antimicrobial based wound healing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117673. [PMID: 31735599 DOI: 10.1016/j.saa.2019.117673] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 10/12/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
Polymeric nanocomposites have gained extensive attention in modern nanotechnology by reason of its design, flexibility, sole applications and lower life cycle costs. Preparation of composites using spreading of inorganic metal nanoparticles in organic polymeric matrices has plenty of scope and applications in the biomedical field. Poly-D,l-lactide-co-glycolide (PLGA) is an appreciated polymer for composites preparation because of its non-toxic and promising biodistribution. The consideration of metal nanoparticles has extended rapidly with the presence of new nanocomposites into a range of products and technologies. Compared to bulk materials the synthesized metal nanoparticles have unique character and biomedical uses due to its shape, size, and huge surface to volume ratio. Among different inorganic metal nanoparticles, silver nanoparticles (Ag NPs) have dominated in the biomedical field owing to its diverse potential applications including imaging, sensor, diagnosis and disease treatment. Further, medicinal plant extract mediated Ag NPs shown superior advantages and its antimicrobial based wound healing prospective has been established. However, not much information on plant extract mediated Ag NPs integrated PLGA nanocomposites wound healing applications. In the present review, we discussed necessity, preparation, characterization and antimicrobial based wound healing mechanism of incorporated plant extract mediated silver/PLGA nanocomposites.
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Affiliation(s)
- Sankar Renu
- Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tiruchirappalli, 620 024, Tamil Nadu, India; Ohio Agricultural Research and Development Center, The Ohio State University, 1680 Madison Avenue, Wooster, OH, 44691, United States.
| | | | - Vilwanathan Ravikumar
- Department of Biochemistry, School of Life Sciences, Bharathidasan University, Tiruchirappalli, 620 024, Tamil Nadu, India.
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6
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Sahu K, Mondal S, Patra B, Pain T, Patra SK, Dosche C, Kar S. Regioselective thiocyanation of corroles and the synthesis of gold nanoparticle-corrole assemblies. NANOSCALE ADVANCES 2020; 2:166-170. [PMID: 36134003 PMCID: PMC9419656 DOI: 10.1039/c9na00671k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 11/20/2019] [Indexed: 06/15/2023]
Abstract
Herein we demonstrate a synthetic protocol for the regioselective thiocyanation of corroles. To the best of our knowledge, thiocyanato appended corrole has never been reported earlier. The resulting thiocyanato appended corrole turned out to be a good corrole based precursor for the facile synthesis of thiol protected gold nanoparticles (Au NPs). The ligand system acts as a good bidentate framework and passivates the gold surface. A strong electronic interaction between the corrole and the gold nanoparticles is manifested by their unique photo physical properties and it also confirms that the binding through β-substitutions has a more pronounced effect even though the corrole rings are face-off to the gold surface.
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Affiliation(s)
- Kasturi Sahu
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar Khordha 752050 India
- Homi Bhabha National Institute, Training School Complex Anushakti Nagar Mumbai 400094 India
| | - Sruti Mondal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar Khordha 752050 India
- Homi Bhabha National Institute, Training School Complex Anushakti Nagar Mumbai 400094 India
| | - Bratati Patra
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar Khordha 752050 India
- Homi Bhabha National Institute, Training School Complex Anushakti Nagar Mumbai 400094 India
| | - Tanmoy Pain
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar Khordha 752050 India
- Homi Bhabha National Institute, Training School Complex Anushakti Nagar Mumbai 400094 India
| | - Sajal Kumar Patra
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar Khordha 752050 India
- Homi Bhabha National Institute, Training School Complex Anushakti Nagar Mumbai 400094 India
| | - Carsten Dosche
- University of Oldenburg, Institute of Chemistry Carl-von-Ossietzky-St. 9-11 26129 Oldenburg Germany
| | - Sanjib Kar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar Khordha 752050 India
- Homi Bhabha National Institute, Training School Complex Anushakti Nagar Mumbai 400094 India
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7
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Ghosh A, Ghosh S, Jana B, Patra A. Ultrafast Relaxation Processes of Conjugated Polymer Nanoparticles in the Presence of Au Nanoparticles. Chem Asian J 2019; 14:4681-4687. [DOI: 10.1002/asia.201900905] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/02/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Arnab Ghosh
- School of Materials SciencesIndian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
| | - Srijon Ghosh
- School of Materials SciencesIndian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
| | - Bikash Jana
- School of Materials SciencesIndian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
| | - Amitava Patra
- School of Materials SciencesIndian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
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8
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Anu A, Abdul Khadar M. CuO–ZnO nanocomposite films with efficient interfacial charge transfer characteristics for optoelectronic applications. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1002-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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9
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Kashihara K, Uto Y, Nakajima T. Rapid in situ synthesis of polymer-metal nanocomposite films in several seconds using a CO 2 laser. Sci Rep 2018; 8:14719. [PMID: 30283053 PMCID: PMC6170423 DOI: 10.1038/s41598-018-33006-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 09/14/2018] [Indexed: 12/27/2022] Open
Abstract
We demonstrate the rapid in situ synthesis of polymer-metal nanocomposite films using a CO2 laser at 10.6 μm. The mechanism of our method is that the precursor of the metal nanoparticles, i.e., the metallic ions, is very rapidly reduced in the laser-heated polymer matrix without any reducing agent. Unlike other known laser-induced reduction methods using UV lasers, which produce radicals to promote reduction, the CO2 laser energy is mainly absorbed by the glass substrate, and the laser-heated substrate heats the polymer matrix through heat diffusion to promote reduction. The superiority of the use of CO2 lasers over nanosecond visible~UV lasers is also demonstrated in terms of the damage to the film. The developed method can be a new alternative to quickly synthesize a variety of polymer-metal nanocomposite films.
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Affiliation(s)
- Kazuhiko Kashihara
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yuki Uto
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takashi Nakajima
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan.
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10
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Koizumi Y, Ohira M, Watanabe T, Nishiyama H, Tomita I, Inagi S. Synthesis of Poly(3,4-ethylenedioxythiophene)-Platinum and Poly(3,4-ethylenedioxythiophene)-Poly(styrenesulfonate) Hybrid Fibers by Alternating Current Bipolar Electropolymerization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7598-7603. [PMID: 29889536 DOI: 10.1021/acs.langmuir.8b00408] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Alternating current (ac) bipolar electropolymerization of 3,4-ethylenedioxythiophene (EDOT) was performed in the presence of hexachloroplatinate ([PtCl6]2-) or poly(styrenesulfonate) (PSS). We demonstrated that both [PtCl6]2- and PSS were successfully incorporated into electrogenerated poly(3,4-ethylenedioxythiophene) (PEDOT) as dopants to offer hybrid fibers composed of (i) PEDOT and platinum nanoparticles (PtNPs) (PEDOT-Pt hybrid fibers) and (ii) PEDOT and PSS (PEDOT-PSS hybrid fibers), respectively, in one step, grown from the very edges of Au wires used as bipolar electrodes (BPEs).
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11
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Recent progress in nanocomposites based on conducting polymer: application as electrochemical sensors. INTERNATIONAL NANO LETTERS 2018. [DOI: 10.1007/s40089-018-0238-2] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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12
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Comandella D, Ahn MH, Kim H, Mackenzie K. Enhanced protection of PDMS-embedded palladium catalysts by co-embedding of sulphide-scavengers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 601-602:658-668. [PMID: 28577401 DOI: 10.1016/j.scitotenv.2017.05.154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 05/10/2017] [Accepted: 05/17/2017] [Indexed: 06/07/2023]
Abstract
For Pd-containing hydrodechlorination catalysts, coating with poly(dimethyl siloxane) (PDMS) was proposed earlier as promising protection scheme against poisoning. The PDMS coating can effectively repel non-permeating poisons (such as SO32-) retaining the hydrodechlorination Pd activity. In the present study, the previously achieved protection efficiency was enhanced by incorporation of sulphide scavengers into the polymer. The embedded scavengers were able to bind permeating non-ionic poisons (such as H2S) during their passage through PDMS prior to Pd contact which ensured an extended catalyst lifetime. Three scavenger types forming non-permeable sulphur species from H2S - alkaline, oxidative or iron-based compounds - were either incorporated into single-layer coats around individual Pd/Al2O3 particles or into a second layer above Pd-containing PDMS films (Pd-PDMS). Hydrodechlorination and hydrogenation were chosen as model reactions, carried out in batch and continuous-flow reactors. Batch tests with all scavenger-containing catalysts showed extended Pd protection compared to scavenger-free catalysts. Solid alkaline compounds (Ca(OH)2, NaOH, CaO) and MnO2 showed the highest instantaneous scavenger efficiencies (retained Pd activity=30-60%), while iron-based catalysts, such as nano zero-valent iron (nZVI) or ferrocene (FeCp2), proved less efficient (1-10%). When stepwise poisoning was applied, the protection efficiency of iron-based and oxidizing compounds was higher in the long term than that of alkaline solids. Long-term experiments in mixed-flow reactors were performed with selected scavengers, revealing the following trend of protection efficiency: CaO2>Ca(OH)2>FeCp2. Under field-simulating conditions using a fixed-bed reactor, the combination of sulphide pre-oxidation in the water phase by H2O2 and local scavenger-enhanced Pd protection was successful. The oxidizing agent H2O2 does not disturb the Pd-catalysed reduction, while the PDMS-incorporated scavenger considerably extends the catalyst life in the presence of H2S. This work demonstrates that the scavenger-based protection strategy is an effective means to increase the resistance of PDMS-embedded Pd against permeating poisons.
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Affiliation(s)
- Daniele Comandella
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Engineering, Leipzig, Germany
| | - Min Hyung Ahn
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Engineering, Leipzig, Germany
| | - Hojeong Kim
- Division of Water Environment, Korea Environmental Institute (KEI), Sejong, Republic of Korea
| | - Katrin Mackenzie
- Helmholtz Centre for Environmental Research - UFZ, Department of Environmental Engineering, Leipzig, Germany.
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Shayegh S, Amrollahi Bioki H, Zarandi MB, Samani NK, Rahnamanic A. ZnS nanoparticles incorporated in polyaniline composite: Preparation and optical characterization. POLYMER SCIENCE SERIES B 2017. [DOI: 10.1134/s1560090417050104] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Fujikawa S, Koizumi M, Taino A, Okamoto K. Fabrication and Unique Optical Properties of Two-Dimensional Silver Nanorod Arrays with Nanometer Gaps on a Silicon Substrate from a Self-Assembled Template of Diblock Copolymer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:12504-12510. [PMID: 27689442 DOI: 10.1021/acs.langmuir.6b02934] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A periodic array of nanoholes was fabricated via the self-assembly of a polystyrene(PS)-b-poly(methyl methacrylate) (PMMA) block copolymer (BCP) on a silicon substrate and selective etching of the PMMA moieties. Silver nanorods (AgNRs) were then selectively deposited in the nanoholes by a galvanic displacement reaction where the pattern was hexagonally aligned according to the template. The diameter of AgNRs was controlled by changing the immersion time. Optical measurements of the AgNR arrays revealed that the extinction peak was split into two because of the electromagnetically induced transparency effect. In addition, the AgNR arrays showed a surface-enhanced Raman scattering response and were successfully transferred from a silicon substrate to a transparent and flexible polymer film while retaining the rod arrangement.
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Affiliation(s)
- Shigenori Fujikawa
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University , 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular Systems, Kyushu University , 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Interfacial Nanostructure Laboratory, RIKEN , Wako, Saitama 351-0198, Japan
| | - Mari Koizumi
- Interfacial Nanostructure Laboratory, RIKEN , Wako, Saitama 351-0198, Japan
| | - Akiko Taino
- Interfacial Nanostructure Laboratory, RIKEN , Wako, Saitama 351-0198, Japan
| | - Koichi Okamoto
- Institute for Materials Chemistry and Engineering, Kyushu University , 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
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15
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Affiliation(s)
- Simanta Kundu
- Department
of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Amitava Patra
- Department
of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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16
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N-Vinylcarbazole: As an Additive for Thermal Polymerization at Room Temperature with in situ Formation of Ag(0) Nanoparticules. APPLIED SCIENCES-BASEL 2015. [DOI: 10.3390/app5030241] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Dong QZ, Li LL, Chen QS, Guo CC, Yu G. Electrocatalytic oxidation of small organic molecules on Pt-Au nanoparticles supported by POMAN-MWCNTs. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2015. [DOI: 10.1134/s0036024415080270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Morphology and electrical properties of poly(3,4-ethylenedioxythiophene)/titanium dioxide nanocomposites. Macromol Res 2015. [DOI: 10.1007/s13233-015-3080-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Tolstopjatova EG, Kondratiev VV, Eliseeva SN. Multi-layer PEDOT:PSS/Pd composite electrodes for hydrazine oxidation. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-2907-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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20
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Tehfe MA, Jamois R, Cousin P, Elkoun S, Robert M. In situ synthesis and characterization of silver/polymer nanocomposites by thermal cationic polymerization processes at room temperature: initiating systems based on organosilanes and starch nanocrystals. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:4305-4313. [PMID: 25793620 DOI: 10.1021/la504518c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
New methods for the preparation of silver nanoparticles/polymer nanocomposite materials by thermal cationic polymerization of ε-caprolactone (ε-CL) or α-pinene oxide (α-PO) at room temperature (RT) and under air were developed. The new initiating systems were based on silanes (Si), starch nanocrystals (StN) and metal salts. Excellent polymerization profiles were revealed. It was shown that silver nanoparticles (Ag(0) NPs) were in situ formed and that the addition of StN improves the polymerization efficiency. The as-synthesized nanocomposite materials contained spherical nanoparticles homogeneously dispersed in the polymer matrices. Polymers and nanoparticles were characterized by gel permeation chromatography (GPC), X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and UV-vis spectroscopy. A coherent picture of the involved chemical mechanisms is presented.
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Affiliation(s)
- Mohamad-Ali Tehfe
- Carrefour of Innovative Technology and Ecodesign (CITE), Faculty of Engineering, University of Sherbrooke, 2500 blvd Université, Sherbrooke, Quebec J1K 2C3, Canada
| | - Romain Jamois
- Carrefour of Innovative Technology and Ecodesign (CITE), Faculty of Engineering, University of Sherbrooke, 2500 blvd Université, Sherbrooke, Quebec J1K 2C3, Canada
| | - Patrice Cousin
- Carrefour of Innovative Technology and Ecodesign (CITE), Faculty of Engineering, University of Sherbrooke, 2500 blvd Université, Sherbrooke, Quebec J1K 2C3, Canada
| | - Saïd Elkoun
- Carrefour of Innovative Technology and Ecodesign (CITE), Faculty of Engineering, University of Sherbrooke, 2500 blvd Université, Sherbrooke, Quebec J1K 2C3, Canada
| | - Mathieu Robert
- Carrefour of Innovative Technology and Ecodesign (CITE), Faculty of Engineering, University of Sherbrooke, 2500 blvd Université, Sherbrooke, Quebec J1K 2C3, Canada
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Williams PE, Jones ST, Walsh Z, Appel EA, Abo-Hamed EK, Scherman OA. Synthesis of Conducting Polymer-Metal Nanoparticle Hybrids Exploiting RAFT Polymerization. ACS Macro Lett 2015; 4:255-259. [PMID: 35596418 DOI: 10.1021/mz500645c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The direct covalent attachment of conducting polymers (CP) to nanoparticles (NP) to form CP-NP nanohybrids is of great interest for optoelectronic device applications. Hybrids formed by covalently anchoring CP to NP, rather than traditional blending or bilayer approaches, is highly desirable. CP-NP nanohybrids have increased interfacial surface area between the two components, facilitating rapid exciton diffusion at the p-n heterojunction. These materials take advantage of the facile solution processability, lightweight characteristics, flexibility, and mechanical strength associated with CPs, and the broad spectral absorption, photostability, and high charge carrier mobility of NPs. We demonstrate the ability to polymerize a hole transporting (HT) polymer utilizing reversible-addition-fragmentation chain transfer (RAFT) polymerization and its subsequent rapid aminolysis to yield a thiol-terminated HT polymer. Subsequent facile attachment to gold (Au) and silver (Ag) NPs and cadmium selenide (CdSe) quantum dots (QDs), to form a number of CP-NP systems is demonstrated and characterized. CP-NP nanohybrids show broad spectral absorptions ranging from UV through visible to the near IR, and their facile synthesis and purification could allow for large scale industrial applications.
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Affiliation(s)
- Paul E. Williams
- Melville Laboratory for Polymer
Synthesis, Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Samuel T. Jones
- Melville Laboratory for Polymer
Synthesis, Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Zarah Walsh
- Melville Laboratory for Polymer
Synthesis, Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Eric A. Appel
- Melville Laboratory for Polymer
Synthesis, Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Enass K. Abo-Hamed
- Melville Laboratory for Polymer
Synthesis, Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Oren A. Scherman
- Melville Laboratory for Polymer
Synthesis, Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
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22
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Pletsch H, Greiner A, Agarwal S. Preparing a pseudo-solid by the reinforcement of a polydentate thioether using silver nanoparticles. NANOSCALE 2015; 7:1977-1983. [PMID: 25536368 DOI: 10.1039/c4nr06834c] [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 design of networks from polymers and noble metal nanoparticles requires thorough control over topological polymer-particle arrangements. This study explores the interaction between a linear polydentate poly(propylene sulfide) (PPrS) ligand and silver nanoparticles (AgNPs) with an aim to study its effect on mechanical and viscoelastic properties. Very low amounts (0.30 vol%) of silver nanoparticles lead to significant mechanical reinforcement of PPrS, yielding viscoelastic properties of an unfastened network with solid-like elastic responses on mechanical stimulation. The materials are made by ring-opening anionic polymerization of propylene sulfide to yield high molar mass PPrS with a total of 593 thioether functionalities per chain, followed by a simple in situ "grafting to" method to homogeneously incorporate AgNPs into the polymer matrix. From investigations on the chain dynamics using dynamic rheology it is concluded that well-dispersed AgNPs impose additional topological constraints on the polymer chains. Calculations of the statistical interparticle distances support a tele-bridging polymer-particle arrangement.
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Affiliation(s)
- Holger Pletsch
- Faculty of Biology, Chemistry and Earth Sciences, Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces, University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany.
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23
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Jana B, Bhattacharyya S, Patra A. Conjugated polymer P3HT–Au hybrid nanostructures for enhancing photocatalytic activity. Phys Chem Chem Phys 2015; 17:15392-9. [DOI: 10.1039/c5cp01769f] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Organic–inorganic hybrid nanostructures for designing new optical based materials for efficient photocatalysis.
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Affiliation(s)
- Bikash Jana
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Santanu Bhattacharyya
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Amitava Patra
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
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24
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Mondal S, Rana U, Bhattacharjee RR, Malik S. One pot green synthesis of polyaniline coated gold nanorods and its applications. RSC Adv 2014. [DOI: 10.1039/c4ra12080a] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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25
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Bhattacharyya S, Patra A. Interactions of π-conjugated polymers with inorganic nanocrystals. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2014. [DOI: 10.1016/j.jphotochemrev.2014.05.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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26
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Yassin A, Oçafrain M, Blanchard P, Mallet R, Roncali J. Synthesis of Hybrid Electroactive Materials by Low-Potential Electropolymerization of Gold Nanoparticles Capped with Tailored EDOT-Thiophene Precursor Units. ChemElectroChem 2014. [DOI: 10.1002/celc.201402087] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Ridi F, Bonini M, Baglioni P. Magneto-responsive nanocomposites: preparation and integration of magnetic nanoparticles into films, capsules, and gels. Adv Colloid Interface Sci 2014; 207:3-13. [PMID: 24139510 DOI: 10.1016/j.cis.2013.09.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Accepted: 09/23/2013] [Indexed: 12/12/2022]
Abstract
This review reports on the latest developments in the field of magnetic nanocomposites, with a special focus on the potentials introduced by the incorporation of magnetic nanoparticles into polymer and supramolecular matrices. The general notions and the state of the art of nanocomposite materials are summarized and the results reported in the literature over the last decade on magnetically responsive films, capsules and gels are reviewed. The most promising concepts that have inspired the design of magneto-responsive nanocomposites are illustrated through remarkable examples where the integration of magnetic nanoparticles into organic architectures has successfully taken to the development of responsive multifunctional materials.
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28
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Fabregat G, Armelin E, Alemán C. Selective Detection of Dopamine Combining Multilayers of Conducting Polymers with Gold Nanoparticles. J Phys Chem B 2014; 118:4669-82. [DOI: 10.1021/jp412613g] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Georgina Fabregat
- Departament
d’Enginyeria Química, E. T. S. d’Enginyers Industrials, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain
- Center
for Research in Nano-Engineering, Universitat Politècnica de Catalunya, Campus Sud, Edifici C’, C/Pasqual i Vila s/n, Barcelona E-08028, Spain
| | - Elaine Armelin
- Departament
d’Enginyeria Química, E. T. S. d’Enginyers Industrials, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain
- Center
for Research in Nano-Engineering, Universitat Politècnica de Catalunya, Campus Sud, Edifici C’, C/Pasqual i Vila s/n, Barcelona E-08028, Spain
| | - Carlos Alemán
- Departament
d’Enginyeria Química, E. T. S. d’Enginyers Industrials, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain
- Center
for Research in Nano-Engineering, Universitat Politècnica de Catalunya, Campus Sud, Edifici C’, C/Pasqual i Vila s/n, Barcelona E-08028, Spain
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29
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Holze R, Wu Y. Intrinsically conducting polymers in electrochemical energy technology: Trends and progress. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.08.100] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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30
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Sharma B, Mandani S, Sarma TK. Enzymes as bionanoreactors: glucose oxidase for the synthesis of catalytic Au nanoparticles and Au nanoparticle–polyaniline nanocomposites. J Mater Chem B 2014; 2:4072-4079. [DOI: 10.1039/c4tb00218k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biogenic synthesis of Au nanoparticles and Au nanoparticle–polyaniline composite could be accomplished taking advantage of the reducing and catalytic activity of glucose oxidase.
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Affiliation(s)
- Bhagwati Sharma
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- IET Campus-DAVV
- Indore-452017, India
| | - Sonam Mandani
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- IET Campus-DAVV
- Indore-452017, India
| | - Tridib K. Sarma
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- IET Campus-DAVV
- Indore-452017, India
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31
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Fateixa S, Daniel-da-Silva AL, Jordão N, Barros-Timmons A, Trindade T. Effect of colloidal silver and gold nanoparticles on the thermal behavior of poly(t-butyl acrylate) composites. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.06.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Wang L, Mei S, Jin Z. The Influences of Cooperative Swelling and Coordination on Patterned Decoration of Gold on Block Copolymer Nanospheres. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201300481] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lu Wang
- Department of Chemistry; Renmin University of China; Beijing 100872 P. R. China
| | - Shilin Mei
- Department of Chemistry; Renmin University of China; Beijing 100872 P. R. China
| | - Zhaoxia Jin
- Department of Chemistry; Renmin University of China; Beijing 100872 P. R. China
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33
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Chemically modified polyaniline nanocomposites by poly(2-acrylamido-2-methyl-1-propanesulfonicacid)/graphene nanoplatelet. Colloid Polym Sci 2013. [DOI: 10.1007/s00396-013-3016-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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34
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Wang SJ, Choi YJ, Yoo B, Kim YH, Park HH. Effect of Surface Chemisorption between Poly(3,4-ethylenedioxythiophene):Poly(styrene sulfonate) and Ag Nanoparticles on the Conductivity of the Nanocomposite Film. CHEM LETT 2013. [DOI: 10.1246/cl.130087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Seok-Joo Wang
- Department of Materials Science and Engineering, Yonsei University
| | - Yong-June Choi
- Department of Materials Science and Engineering, Yonsei University
| | - Byungwook Yoo
- Flexible Display Research Center, Korea Electronics Technology Institute
| | - Yong-Hoon Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University
| | - Hyung-Ho Park
- Department of Materials Science and Engineering, Yonsei University
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35
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Jiang F, Yue R, Du Y, Xu J, Yang P. A one-pot ‘green’ synthesis of Pd-decorated PEDOT nanospheres for nonenzymatic hydrogen peroxide sensing. Biosens Bioelectron 2013; 44:127-31. [DOI: 10.1016/j.bios.2013.01.003] [Citation(s) in RCA: 146] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 12/29/2012] [Accepted: 01/04/2013] [Indexed: 11/30/2022]
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36
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Thiophene-based donor–acceptor conjugated polymer as potential optoelectronic and photonic material. J CHEM SCI 2013. [DOI: 10.1007/s12039-013-0377-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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37
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Zhu L, Wang X, Gu Q, Chen W, Sun P, Xue G. Confinement-Induced Deviation of Chain Mobility and Glass Transition Temperature for Polystyrene/Au Nanoparticles. Macromolecules 2013. [DOI: 10.1021/ma302643y] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lili Zhu
- Department of Polymer Science
and Engineering, The School of Chemistry and Chemical Engineering,
The State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China
| | - Xiaoliang Wang
- Department of Polymer Science
and Engineering, The School of Chemistry and Chemical Engineering,
The State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China
| | - Qiang Gu
- Department of Polymer Science
and Engineering, The School of Chemistry and Chemical Engineering,
The State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China
| | - Wei Chen
- Department of Polymer Science
and Engineering, The School of Chemistry and Chemical Engineering,
The State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China
| | - Pingchuan Sun
- Key Laboratory of Functional
Polymer Materials, Ministry of Education, Nankai University, Tianjin 300071, P. R. China
| | - Gi Xue
- Department of Polymer Science
and Engineering, The School of Chemistry and Chemical Engineering,
The State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China
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38
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Kondratiev VV, Babkova TA, Tolstopjatova EG. PEDOT-supported Pd nanoparticles as a catalyst for hydrazine oxidation. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2019-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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39
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Synthesis, characterization and adsorption properties of nanostructured hybrid materials modified by boron and zirconium. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0075-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractThe adsorption properties of two new nanostructured hybrid materials containing B2O3 and ZrO2 were studied. The new organic-inorganic materials were synthesized via a sol-gel method. As a modifying agent, a quantity of 10 wt.% Zr(OPr)4 or B(OCH3)3 was added. The structure of the hybrid materials was investigated by means of (Fourier transform infrared spectroscopy (FTIR), x-ray diffractometry (XRD), scanning electron microscopy (SEM), (atomic force microscopy (AFM) and nuclear magnetic resonance spectroscopy (NMR). Based on the obtained data, the most probable cross-linking mechanism for the derived gels was proposed. The characterization of texture parameters of both materials was carried out with the use of low-temperature adsorption of nitrogen. Adsorption of Cu(II), Fe(III), Cr(III), Cd(II) and Pb(II) ions on both materials was investigated using multi-component solutions with different concentrations and acidity by means of the batch method. Kinetics of adsorption was also investigated. Pseudo-first order, pseudo-second order and intraparticle diffusion models were used to analyze kinetic data. The adsorption was significantly affected by the pH value. Equilibrium data were fitted to linear Langmuir, Freundlich and Dubinin-Radushkevich models and maximum adsorption capacities were calculated.
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40
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Sumitha MS, Shalumon KT, Sreeja VN, Jayakumar R, Nair SV, Menon D. Biocompatible and Antibacterial Nanofibrous Poly(ϵ-caprolactone)-Nanosilver Composite Scaffolds for Tissue Engineering Applications. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2012. [DOI: 10.1080/10601325.2012.642208] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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41
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Gu H, Huang Y, Zhang X, Wang Q, Zhu J, Shao L, Haldolaarachchige N, Young DP, Wei S, Guo Z. Magnetoresistive polyaniline-magnetite nanocomposites with negative dielectrical properties. POLYMER 2012. [DOI: 10.1016/j.polymer.2011.12.033] [Citation(s) in RCA: 206] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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42
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Feng JJ, Zhang PP, Wang AJ, Liao QC, Xi JL, Chen JR. One-step synthesis of monodisperse polydopamine-coated silver core–shell nanostructures for enhanced photocatalysis. NEW J CHEM 2012. [DOI: 10.1039/c1nj20850k] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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43
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Abargues R, Albert S, Valdés JL, Abderrafi K, Martínez-Pastor JP. Molecular-mediated assembly of silver nanoparticles with controlled interparticle spacing and chain length. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm34707e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Pham LQ, Sohn JH, Kim CW, Park JH, Kang HS, Lee BC, Kang YS. Copper nanoparticles incorporated with conducting polymer: Effects of copper concentration and surfactants on the stability and conductivity. J Colloid Interface Sci 2012; 365:103-9. [DOI: 10.1016/j.jcis.2011.09.041] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 09/16/2011] [Accepted: 09/19/2011] [Indexed: 11/16/2022]
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45
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46
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Thanjam IS, Philips MF, Komathi S, Manisankar P, Gopalan AI, Lee KP. Influence of medium on the nanostructure and properties of poly(4-aminodiphenylamine)-silver nanocomposites. POLYM INT 2011. [DOI: 10.1002/pi.3200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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47
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Atmeh M, Alcock-Earley BE. A conducting polymer/Ag nanoparticle composite as a nitrate sensor. J APPL ELECTROCHEM 2011. [DOI: 10.1007/s10800-011-0354-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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48
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Ma X, Su X, Zhou B, Zhao X, Tian Y, Wang Z. Synthesis and friction properties of copper/PMMA composites by soapless emulsion polymerization. J Appl Polym Sci 2011. [DOI: 10.1002/app.34339] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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49
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Deepa M, Kharkwal A, Joshi AG, Srivastava AK. Charge Transport and Electrochemical Response of Poly(3,4-ethylenedioxypyrrole) Films Improved by Noble-Metal Nanoparticles. J Phys Chem B 2011; 115:7321-31. [DOI: 10.1021/jp201055y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Melepurath Deepa
- Department of Chemistry, Indian Institute of Technology Hyderabad, Ordnance Factory Estate, Yeddumailaram-502205, Andhra Pradesh, India
| | - Aneeta Kharkwal
- National Physical Laboratory, Dr. K. S. Krishnan Road, New Delhi-110012, India
| | - Amish G. Joshi
- National Physical Laboratory, Dr. K. S. Krishnan Road, New Delhi-110012, India
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50
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Hariprasad E, Radhakrishnan TP. A highly efficient and extensively reusable "dip catalyst" based on a silver-nanoparticle-embedded polymer thin film. Chemistry 2011; 16:14378-84. [PMID: 21031369 DOI: 10.1002/chem.201001679] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Achieving a harmonious combination of the efficiency of homogeneous catalysts with the reusability of heterogeneous catalysts is a fundamental and challenging problem. Metal nanoparticles in a suitable matrix offer a potential solution. However an ideal design is yet to be realized, because the critical requirements of facile access to the catalyst, its durability, and ease of retrieval and reuse are difficult to reconcile. We report herein a multilayer free-standing thin-film catalyst based on silver nanoparticles, generated in situ inside poly(vinyl alcohol) by using a facile protocol, which shows excellent efficiency and extensive reusability in the prototypical reaction, the reduction of 4-nitrophenol by sodium borohydride. The "dip catalyst" film, which can start/stop the reaction instantaneously by mere insertion/removal, is used 30 times leading to a total turnover number (TON) of ≈3390, which is unprecedented for this reaction. The efficiency of the catalyst is reduced only marginally at the end of these runs, promising further extended usage. The unique advantage of convenient catalyst monitoring is illustrated by the periodic spectroscopic and microscopic examinations of the thin film, which revealed the basis of its durability. The demonstrated potential of metal-nanoparticle-embedded polymer thin films, coupled with their versatility and ease of fabrication, promises extensive applications in chemical catalysis.
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Affiliation(s)
- E Hariprasad
- School of Chemistry, University of Hyderabad, Hyderabad, 500 046, India
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