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Rodrigues RDR, Pellosi DS, Louarn G, Péres LO. Nanocomposite Films of Silver Nanoparticles and Conjugated Copolymer in Natural and Nano-Form: Structural and Morphological Studies. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16103663. [PMID: 37241290 DOI: 10.3390/ma16103663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/27/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023]
Abstract
The use of conjugated polymers (CPs) and metallic nanoparticles is an interesting way to form nanocomposites with improved optical properties. For instance, a nanocomposite with high sensitivity can be produced. However, the hydrophobicity of CPs may hamper applications due to their low bioavailability and low operability in aqueous media. This problem can be overcome by forming thin solid films from an aqueous dispersion containing small CP nanoparticles. So, in this work we developed the formation of thin films of poly(9,9-dioctylfluorene-co-3,4-ethylenedioxythiophene) (PDOF-co-PEDOT) from its natural and nano form (NCP) from aqueous solution. These copolymers were then blended in films with triangular and spherical silver nanoparticles (AgNP) for future applicability as a SERS sensor of pesticides. TEM characterization showed that the AgNP were adsorbed on the NCP surface, forming a nanostructure with an average diameter of 90 nm (value according to that obtained by DLS) and with a negative potential zeta. These nanostructures were transferred to a solid substrate, forming thin and homogeneous films with different morphology of PDOF-co-PEDOT films, as observed by atomic force microscopy (AFM). XPS data demonstrated the presence of the AgNP in the thin films, as well as evidence that films with NCP are more resistant to the photo-oxidation process. Raman spectra showed characteristic peaks of the copolymer in the films prepared with NCP. It should also be noted the enhancement effect of Raman bands observed on films containing AgNP, a strong indication of the SERS effect induced by the metallic nanoparticles. Furthermore, the different geometry of the AgNP influences the way in which the adsorption between the NCP and the metal surface occurs, with a perpendicular adsorption between the NCP chains and the surface of the triangular AgNP.
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Affiliation(s)
- Rebeca da Rocha Rodrigues
- Department of Exact and Earth Sciences, Federal University of São Paulo, UNIFESP, Campus Diadema, São Paulo 09913-030, Brazil
- Institut des Matériaux de Nantes Jean Rouxel, IMN, Nantes Université, CNRS, F-44000 Nantes, France
| | - Diogo Silva Pellosi
- Department of Exact and Earth Sciences, Federal University of São Paulo, UNIFESP, Campus Diadema, São Paulo 09913-030, Brazil
| | - Guy Louarn
- Institut des Matériaux de Nantes Jean Rouxel, IMN, Nantes Université, CNRS, F-44000 Nantes, France
| | - Laura Oliveira Péres
- Department of Exact and Earth Sciences, Federal University of São Paulo, UNIFESP, Campus Diadema, São Paulo 09913-030, Brazil
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Gutiérrez M, López-González M, Sánchez F, Douhal A. Efficient light harvesting within a C153@Zr-based MOF embedded in a polymeric film: spectral and dynamical characterization. Phys Chem Chem Phys 2017; 19:17544-17552. [DOI: 10.1039/c7cp02094e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Energy transfer within a hybrid C153@Zr-NDC composite material incorporated into PC films. M* and (E*) are the excited monomers and excimers of the MOF, respectively. C153 is Coumarin 153.
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Affiliation(s)
- M. Gutiérrez
- Departamento de Química Física
- Facultad de Ciencias Ambientales y Bioquímica
- and INAMOL
- Universidad de Castilla-La Mancha
- Avenida Carlos III
| | - M. López-González
- Departamento de Química-Física de Polímeros
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC). C/Juan de la Cierva 3
- 28006 Madrid
- Spain
| | - F. Sánchez
- Instituto de Química Orgánica
- CSIC
- Juan de la Cierva
- 3
- 28006 Madrid
| | - A. Douhal
- Departamento de Química Física
- Facultad de Ciencias Ambientales y Bioquímica
- and INAMOL
- Universidad de Castilla-La Mancha
- Avenida Carlos III
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Li Y, Nese A, Hu X, Lebedeva NV, LaJoie TW, Burdyńska J, Stefan MC, You W, Yang W, Matyjaszewski K, Sheiko SS. Shifting Electronic Structure by Inherent Tension in Molecular Bottlebrushes with Polythiophene Backbones. ACS Macro Lett 2014; 3:738-742. [PMID: 35590691 DOI: 10.1021/mz5003323] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Bottlebrush macromolecules can be regarded as molecular tensile machines, where tension is self-generated along the backbone due to steric repulsion between densely grafted side chains. This intrinsic tension is amplified upon adsorption of bottlebrush molecules onto a substrate and increases with grafting density, side chain length, and strength of adhesion to the substrate. To investigate the effects of tension on the electronic structure of polythiophene (PT), bottlebrush macromolecules were prepared by grafting poly(n-butyl acrylate) (PBA) side chains from PT macroinitiators by atom transfer radical polymerization (ATRP). The fluorescence spectra of submonolayers of PT bottlebrushes were measured on a Langmuir-Blodgett (LB) trough with the backbone tension adjusted by controlling the side-chain length, surface pressure, and chemical composition of a substrate. The wavelength of maximum emission has initially red-shifted, followed by a blue-shift as the backbone tension increases from 0 to 2.5 nN, which agrees with DFT calculations. The red-shift is ascribed to an increase in the conjugation length due to the extension of the PT backbone at lower force regime (0-1.0 nN), while the blue-shift is attributed to deformations of bond lengths and angles in the backbone at higher force regime (1.0-2.5 nN).
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Affiliation(s)
- Yuanchao Li
- Department
of Chemistry, University of North Carolina at Chapel Hill, North Carolina 27599, United States
| | - Alper Nese
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Xiangqian Hu
- Department
of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Natalia V. Lebedeva
- Department
of Chemistry, University of North Carolina at Chapel Hill, North Carolina 27599, United States
| | - Travis W. LaJoie
- Department
of Chemistry, University of North Carolina at Chapel Hill, North Carolina 27599, United States
| | - Joanna Burdyńska
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Mihaela C. Stefan
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Wei You
- Department
of Chemistry, University of North Carolina at Chapel Hill, North Carolina 27599, United States
| | - Weitao Yang
- Department
of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Krzysztof Matyjaszewski
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Sergei S. Sheiko
- Department
of Chemistry, University of North Carolina at Chapel Hill, North Carolina 27599, United States
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Roberts DRT, Holder SJ. Mechanochromic systems for the detection of stress, strain and deformation in polymeric materials. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm04237d] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lee CK, Davis DA, White SR, Moore JS, Sottos NR, Braun PV. Force-Induced Redistribution of a Chemical Equilibrium. J Am Chem Soc 2010; 132:16107-11. [DOI: 10.1021/ja106332g] [Citation(s) in RCA: 210] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Corissa K. Lee
- Departments of Materials Science and Engineering, Chemistry, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Douglas A. Davis
- Departments of Materials Science and Engineering, Chemistry, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Scott R. White
- Departments of Materials Science and Engineering, Chemistry, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Jeffrey S. Moore
- Departments of Materials Science and Engineering, Chemistry, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Nancy R. Sottos
- Departments of Materials Science and Engineering, Chemistry, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Paul V. Braun
- Departments of Materials Science and Engineering, Chemistry, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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Caruso MM, Davis DA, Shen Q, Odom SA, Sottos NR, White SR, Moore JS. Mechanically-Induced Chemical Changes in Polymeric Materials. Chem Rev 2009; 109:5755-98. [DOI: 10.1021/cr9001353] [Citation(s) in RCA: 990] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mary M. Caruso
- Departments of Chemistry, Materials Science and Engineering, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801
| | - Douglas A. Davis
- Departments of Chemistry, Materials Science and Engineering, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801
| | - Qilong Shen
- Departments of Chemistry, Materials Science and Engineering, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801
| | - Susan A. Odom
- Departments of Chemistry, Materials Science and Engineering, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801
| | - Nancy R. Sottos
- Departments of Chemistry, Materials Science and Engineering, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801
| | - Scott R. White
- Departments of Chemistry, Materials Science and Engineering, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801
| | - Jeffrey S. Moore
- Departments of Chemistry, Materials Science and Engineering, and Aerospace Engineering and Beckman Institute, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801
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Pucci A, Di Cuia F, Signori F, Ruggeri G. Bis(benzoxazolyl)stilbene excimers as temperature and deformation sensors for biodegradable poly(1,4-butylene succinate) films. ACTA ACUST UNITED AC 2007. [DOI: 10.1039/b612033d] [Citation(s) in RCA: 175] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pucci A, Bertoldo M, Bronco S. Luminescent Bis(benzoxazolyl)stilbene as a Molecular Probe for Poly(propylene) Film Deformation. Macromol Rapid Commun 2005. [DOI: 10.1002/marc.200500227] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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