1
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Tang Y, Cai T, Lin J, Zhang L. Precise Control over Positioning and Orientation of Nanorods in Block Copolymer Nanocomposites via Regulation of Coassembly Pathways. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c01996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Affiliation(s)
- Yutong Tang
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Tianyun Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Liangshun Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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2
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Wei Y, Zou X, Cen C, Zhang B, Xiang B, Hao J, Wang B, Deng M, Hu Q, Wei S. Controlling the electrochemical activity of dahlia-like β-NiS@rGO by interface polarization. Dalton Trans 2023; 52:1345-1356. [PMID: 36630185 DOI: 10.1039/d2dt03167a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Transition metal sulfides have become more and more important in the field of energy storage due to their superior chemical and physical properties. Herein, dahlia β-NiS with a rough surface and β-NiS@reduced graphene oxide (rGO) have been green synthesized by a one-step hydrothermal method. The interface characteristics of β-NiS@ rGO composites have been systematically studied by XPS, Raman, and first-principles calculations. It is found that the residual O atoms in the interface and the polarization charge generated by them play an important role in performance enhancement. The NiS@rGO composite material has the best electrochemical performance when the C/O ratio is 6.48. Furthermore, we designed a NiS@rGO//rGO asymmetric supercapacitor with a potential window of 1.7 V. Its excellent energy density and power density demonstrate the advantages of the optimized NiS@rGO electrode. When the power density is 850 W kg-1, the energy density can reach 40.4 W h kg-1. Even at a power density of up to 6800 W kg-1, the energy density can be maintained at 17.6 W h kg-1. These encouraging results provide a possible pathway for designing asymmetric supercapacitors with ultra-high performance and a feasible strategy for the precise control of electrochemical performance.
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Affiliation(s)
- Yiqing Wei
- Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China. .,Center of Quantum Materials & Devices and College of Physics, Chongqing University, Chongqing 401331, P. R. China
| | - Xuefeng Zou
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, P. R. China.
| | - Chao Cen
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, P. R. China.
| | - Bin Zhang
- Analytical and Testing Center of Chongqing University, Chongqing 400044, P. R. China
| | - Bin Xiang
- Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China.
| | - Jiangyu Hao
- Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China.
| | - Bo Wang
- National Key Laboratory for Remanufacturing, Army Academy of Armored Forces, Beijing 100072, P. R. China.
| | - Mingsen Deng
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, P. R. China.
| | - Qin Hu
- Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China.
| | - Shicheng Wei
- National Key Laboratory for Remanufacturing, Army Academy of Armored Forces, Beijing 100072, P. R. China.
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3
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Zhang R, Zhang Z, Han J, Yang L, Li J, Song Z, Wang T, Zhu J. Advanced liquid crystal-based switchable optical devices for light protection applications: principles and strategies. LIGHT, SCIENCE & APPLICATIONS 2023; 12:11. [PMID: 36593244 PMCID: PMC9807646 DOI: 10.1038/s41377-022-01032-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 09/18/2022] [Accepted: 11/01/2022] [Indexed: 05/14/2023]
Abstract
With the development of optical technologies, transparent materials that provide protection from light have received considerable attention from scholars. As important channels for external light, windows play a vital role in the regulation of light in buildings, vehicles, and aircrafts. There is a need for windows with switchable optical properties to prevent or attenuate damage or interference to the human eye and light-sensitive instruments by inappropriate optical radiation. In this context, liquid crystals (LCs), owing to their rich responsiveness and unique optical properties, have been considered among the best candidates for advanced light protection materials. In this review, we provide an overview of advances in research on LC-based methods for protection against light. First, we introduce the characteristics of different light sources and their protection requirements. Second, we introduce several classes of light modulation principles based on liquid crystal materials and demonstrate the feasibility of using them for light protection. In addition, we discuss current light protection strategies based on liquid crystal materials for different applications. Finally, we discuss the problems and shortcomings of current strategies. We propose several suggestions for the development of liquid crystal materials in the field of light protection.
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Affiliation(s)
- Ruicong Zhang
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150080, China
| | - Zhibo Zhang
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150080, China
| | - Jiecai Han
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150080, China
| | - Lei Yang
- Research Center of Analysis and Measurement, Harbin Institute of Technology, Harbin, 150080, China
| | - Jiajun Li
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150080, China
| | - Zicheng Song
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150080, China
| | - Tianyu Wang
- School of Energy Science & Engineering, Harbin Institute of Technology, Harbin, 150001, China.
| | - Jiaqi Zhu
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150080, China.
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin, 150080, China.
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4
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Diaz J, Pinna M, Zvelindovsky A, Pagonabarraga I. Nanoparticle anisotropy induces sphere-to-cylinder phase transition in block copolymer melts. SOFT MATTER 2022; 18:3638-3643. [PMID: 35514297 PMCID: PMC9116154 DOI: 10.1039/d2sm00214k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Block copolymer nanocomposites including anisotropic nanoparticles have been previously found to co-assemble into complex structures with nanoparticle alignment. Anisotropic nanoparticles with large aspect ratios are found to modify the morphology of block copolymers at modest concentrations, inducing a sphere-to-cylinder phase transition by breaking the local symmetry in the vicinity of a solid particle. This transition takes place over a wide range of NP lengths comparable with the BCP spacing. Controlling the orientation of uniaxial nanoparticles provides additional control over the global orientation of the block copolymer, as previously reported by experiments.
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Affiliation(s)
- Javier Diaz
- CECAM, Centre Européen de Calcul Atomique et Moléculaire, EPFL, École Polytechnique Fédérale de Lausanne, Batochime - Avenue Forel 2, 1015 Lausanne, Switzerland
| | - Marco Pinna
- Centre for Computational Physics, University of Lincoln, Brayford Pool, Lincoln, LN6 7TS, UK.
| | - Andrei Zvelindovsky
- Centre for Computational Physics, University of Lincoln, Brayford Pool, Lincoln, LN6 7TS, UK.
| | - Ignacio Pagonabarraga
- CECAM, Centre Européen de Calcul Atomique et Moléculaire, EPFL, École Polytechnique Fédérale de Lausanne, Batochime - Avenue Forel 2, 1015 Lausanne, Switzerland
- Departament de Física de la Matèria Condensada, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain
- Universitat de Barcelona Institute of Complex Systems (UBICS), Universitat de Barcelona, 08028 Barcelona, Spain
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5
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Hybrid Time-Dependent Ginzburg–Landau Simulations of Block Copolymer Nanocomposites: Nanoparticle Anisotropy. Polymers (Basel) 2022; 14:polym14091910. [PMID: 35567080 PMCID: PMC9103753 DOI: 10.3390/polym14091910] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/27/2022] [Accepted: 05/02/2022] [Indexed: 11/16/2022] Open
Abstract
Block copolymer melts are perfect candidates to template the position of colloidal nanoparticles in the nanoscale, on top of their well-known suitability for lithography applications. This is due to their ability to self-assemble into periodic ordered structures, in which nanoparticles can segregate depending on the polymer–particle interactions, size and shape. The resulting coassembled structure can be highly ordered as a combination of both the polymeric and colloidal properties. The time-dependent Ginzburg–Landau model for the block copolymer was combined with Brownian dynamics for nanoparticles, resulting in an efficient mesoscopic model to study the complex behaviour of block copolymer nanocomposites. This review covers recent developments of the time-dependent Ginzburg–Landau/Brownian dynamics scheme. This includes efforts to parallelise the numerical scheme and applications of the model. The validity of the model is studied by comparing simulation and experimental results for isotropic nanoparticles. Extensions to simulate nonspherical and inhomogeneous nanoparticles are discussed and simulation results are discussed. The time-dependent Ginzburg–Landau/Brownian dynamics scheme is shown to be a flexible method which can account for the relatively large system sizes required to study block copolymer nanocomposite systems, while being easily extensible to simulate nonspherical nanoparticles.
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Assembly of Semiconductor Nanorods into Circular Arrangements Mediated by Block Copolymer Micelles. MATERIALS 2022; 15:ma15082949. [PMID: 35454639 PMCID: PMC9028013 DOI: 10.3390/ma15082949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/11/2022] [Accepted: 04/14/2022] [Indexed: 01/27/2023]
Abstract
The collective properties of ordered ensembles of anisotropically shaped nanoparticles depend on the morphology of organization. Here, we describe the utilization of block copolymer micelles to bias the natural packing tendency of semiconductor nanorods and organize them into circularly arranged superstructures. These structures are formed as a result of competition between the segregation tendency of the nanorods in solution and in the polymer melt; when the nanorods are highly compatible with the solvent but prefer to segregate in the melt to the core-forming block, they migrate during annealing toward the core–corona interface, and their superstructure is, thus, templated by the shape of the micelle. The nanorods, in turn, exhibit surfactant-like behavior and protect the micelles from coalescence during annealing. Lastly, the influence of the attributes of the micelles on nanorod organization is also studied. The circular nanorod arrangements and the insights gained in this study add to a growing list of possibilities for organizing metal and semiconductor nanorods that can be achieved using rational design.
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7
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Diaz J, Pinna M, Zvelindovsky AV, Pagonabarraga I. Nematic Ordering of Anisotropic Nanoparticles in Block Copolymers. ADVANCED THEORY AND SIMULATIONS 2021. [DOI: 10.1002/adts.202100433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Javier Diaz
- CECAM, Centre Européen de Calcul Atomique et Moléculaire École Polytechnique Fédérale de Lausanne 1015 Lausanne Switzerland
| | - Marco Pinna
- Centre for Computational Physics University of Lincoln Brayford Pool Lincoln LN6 7TS UK
| | | | - Ignacio Pagonabarraga
- CECAM, Centre Européen de Calcul Atomique et Moléculaire École Polytechnique Fédérale de Lausanne 1015 Lausanne Switzerland
- Departament de Física de la Matèria Condensada Universitat de Barcelona Barcelona 08028 Spain
- Universitat de Barcelona Institute of Complex Systems (UBICS) Universitat de Barcelona Barcelona 08028 Spain
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8
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Erigi U, Dhumal U, Tripathy M. Phase behavior of polymer-nanorod composites: A comparative study using PRISM theory and molecular dynamics simulations. J Chem Phys 2021; 154:124903. [PMID: 33810681 DOI: 10.1063/5.0038186] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Well-dispersed composites of polymer and nanorods have many emerging applications and, therefore, are an important area of research. Polymer reference interaction site model (PRISM) theory and molecular dynamics simulations have become powerful tools in the study of the structure and phase behavior of polymer nanocomposites. In this work, we employ both PRISM theory and molecular dynamics simulations to determine the structure and spinodal phase diagram of 1% volume fraction of nanorods in a polymer melt. We make quantitative comparisons between the phase diagrams, which are reported as a function of nanorod aspect ratio and polymer-nanorod interactions. We find that both PRISM theory and molecular dynamics simulations predict the formation of contact aggregates at low polymer-nanorod attraction strength (γ) and bridged aggregates at high polymer-nanorod attraction strength. They predict an entropic depletion-driven phase separation at low γ and a bridging-driven spinodal phase separation at high γ. The polymer and nanorods are found to form stable composites at intermediate values of the polymer-nanorod attraction strength. The fall of the bridging boundary and the gradual rise of the depletion boundary with the nanorod aspect ratio are predicted by both PRISM theory and molecular dynamics simulations. Hence, the miscible region narrows with increasing aspect ratio. The depletion boundaries predicted by theory and simulation are quite close. However, the respective bridging boundaries present a significant quantitative difference. Therefore, we find that theory and simulations qualitatively complement each other and display quantitative differences.
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Affiliation(s)
- Umashankar Erigi
- Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Umesh Dhumal
- Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Mukta Tripathy
- Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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9
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Li X, Kang H, Shen J. Effects of graft locations on dispersion behavior of polymer-grafted nanorods: A molecular dynamics simulation study. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.123077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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10
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Shrestha UM, Han L, Saito T, Schweizer KS, Dadmun MD. Mechanism of Soft Nanoparticle Diffusion in Entangled Polymer Melts. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00870] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Umesh M. Shrestha
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Lu Han
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Tomonori Saito
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Kenneth S. Schweizer
- Department of Materials Science, University of Illinois, Urbana, Illinois 61801, United States
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
- Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, United States
| | - Mark D. Dadmun
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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11
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Yun H, Lee YJ, Xu M, Lee DC, Stein GE, Kim BJ. Softness- and Size-Dependent Packing Symmetries of Polymer-Grafted Nanoparticles. ACS NANO 2020; 14:9644-9651. [PMID: 32806057 DOI: 10.1021/acsnano.0c00668] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Achieving ordered arrays of nanoparticles (NPs) with controlled packing symmetry and interparticle spacing is of great importance to design complex metamaterials. Herein, we report softness- and size-dependent self-assembly behavior of polystyrene-grafted Au NPs (Au@PS NPs). We varied the core size of Au NPs from 1.9 to 9.6 nm and the number-average molecular weight (Mn) of thiol-terminated polystyrene from 1.8 to 7.9 kg mol-1. The optimal packing model based on an "effective softness" parameter λeff that accounts for close-packed and semidilute brush regimes could predict the effective radius of Au@PS NPs (within ±9%) for a wide range of PS Mn, grafting density, and Au core size. With increasing λeff, the self-assembled Au@PS NP superlattices undergo a symmetry transition from hexagonal close packed (hcp) to body-centered tetragonal (bct) to body-centered cubic (bcc). This work demonstrates the effective softness model as a simple but robust tool for the design of NP superlattices with precisely controlled interparticle distance and packing symmetry, both of which are critical for the development of sophisticated materials through control of nanoscale structure.
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Affiliation(s)
- Hongseok Yun
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Young Jun Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Meng Xu
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Doh C Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Gila E Stein
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Bumjoon J Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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12
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Paiva FL, Hore MJA, Secchi A, Calado V, Maia J, Khani S. Dynamic Interfacial Trapping of Janus Nanorod Aggregates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:4184-4193. [PMID: 32200633 DOI: 10.1021/acs.langmuir.9b03604] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Taking advantage of both shape and chemical anisotropy on the same nanoparticle offers rich self-assembly possibilities for nanotechnology. Through dissipative particle dynamics calculations, in the present work, the directed assembly of Janus nanorod aggregates and their capability to assemble into metastable novel structures at an interfacial level have been assessed. Symmetric Janus rods become kinetically trapped and exhibit either parallel or antiparallel alignment with respect to their long axis (different compositions). This depends on several factors that have been mapped herein and that can be precisely tuned: Flory-Huggins interaction parameter χ between polymer phases; concentration; shear rate; and even aggregate shape. Ultimately, two different aggregate structures result from rod tumbling that are not observed under quiescent conditions: monolayer-like aggregates exhibiting trapped rods with antiparallel configuration; and stacked nanorod arrays similar to superlattice sheets. These different structures can be controlled by the likelihood with which tumbling Janus rods encounter other aggregate portions showing parallel alignment. Hence, the present study offers fundamental insight into relevant parameters that govern the directed assembly of Janus nanoparticles at an interfacial level. Novel applications may potentially derive from the resulting aggregate structures, such as peculiar displays and sensors.
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Affiliation(s)
- Felipe L Paiva
- Department of Macromolecular Science and Engineering, Case Western Reserve University, 2100 Adelbert Road, Cleveland, Ohio 44106, United States
- School of Chemistry, Universidade Federal do Rio de Janeiro, Rua Horácio Macedo 2030, Cidade Universitária, Rio de Janeiro, Rio de Janeiro 21941-909, Brazil
| | - Michael J A Hore
- Department of Macromolecular Science and Engineering, Case Western Reserve University, 2100 Adelbert Road, Cleveland, Ohio 44106, United States
| | - Argimiro Secchi
- Chemical Engineering Graduate Program (COPPE), Universidade Federal do Rio de Janeiro, Rua Horácio Macedo 2030, Cidade Universitária, Rio de Janeiro, Rio de Janeiro 21941-909, Brazil
| | - Verônica Calado
- School of Chemistry, Universidade Federal do Rio de Janeiro, Rua Horácio Macedo 2030, Cidade Universitária, Rio de Janeiro, Rio de Janeiro 21941-909, Brazil
| | - João Maia
- Department of Macromolecular Science and Engineering, Case Western Reserve University, 2100 Adelbert Road, Cleveland, Ohio 44106, United States
| | - Shaghayegh Khani
- Department of Macromolecular Science and Engineering, Case Western Reserve University, 2100 Adelbert Road, Cleveland, Ohio 44106, United States
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Yi C, Yang Y, Liu B, He J, Nie Z. Polymer-guided assembly of inorganic nanoparticles. Chem Soc Rev 2019; 49:465-508. [PMID: 31845685 DOI: 10.1039/c9cs00725c] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The self-assembly of inorganic nanoparticles is of great importance in realizing their enormous potentials for broad applications due to the advanced collective properties of nanoparticle ensembles. Various molecular ligands (e.g., small molecules, DNAs, proteins, and polymers) have been used to assist the organization of inorganic nanoparticles into functional structures at different hierarchical levels. Among others, polymers are particularly attractive for use in nanoparticle assembly, because of the complex architectures and rich functionalities of assembled structures enabled by polymers. Polymer-guided assembly of nanoparticles has emerged as a powerful route to fabricate functional materials with desired mechanical, optical, electronic or magnetic properties for a broad range of applications such as sensing, nanomedicine, catalysis, energy storage/conversion, data storage, electronics and photonics. In this review article, we summarize recent advances in the polymer-guided self-assembly of inorganic nanoparticles in both bulk thin films and solution, with an emphasis on the role of polymers in the assembly process and functions of resulting nanostructures. Precise control over the location/arrangement, interparticle interaction, and packing of inorganic nanoparticles at various scales are highlighted.
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Affiliation(s)
- Chenglin Yi
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
| | - Yiqun Yang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
| | - Ben Liu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu 210023, China and Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06268, USA.
| | - Jie He
- Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06268, USA.
| | - Zhihong Nie
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
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14
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Sethi A, Rafiee M, Chandra S, Ahmed H, McCormack S. Unified Methodology for Fabrication and Quantification of Gold Nanorods, Gold Core Silver Shell Nanocuboids, and Their Polymer Nanocomposites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13011-13019. [PMID: 31525940 DOI: 10.1021/acs.langmuir.9b01481] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A multitude of applications is related to the unique properties of absorption, scattering, and plasmon-enhanced phenomena of metal nanoparticles (MNPs). The aqueous colloidal-based synthesis of MNPs is used more widely as it allows precise shape and size control. However, for various applications, it is required to have the MNPs in an organic solvent or polymer that is compatible with the MNPs. This work establishes a protocol from the synthesis to the phase transfer process of gold nanorods and gold core silver shell nanocuboids (Au@Ag NCs) in dichloromethane. Subsequent dispersion in a polymer (silicone encapsulant polymer) is achieved while retaining the MNPs' plasmonic properties. Au@Ag NCs have not been transferred to an organic solvent to date due to their unique shape and instability in the organic phase. The established protocol is reproducible, and MNPs were found to be stable for up to a year in the polymer. Qualitative and quantitative validation of the experimental results is achieved on MNP concentration by a model based on the finite difference time domain method. Using the model, the concentration of MNPs in nanocomposite can be determined.
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Affiliation(s)
- Arunima Sethi
- School of Engineering , Trinity College Dublin , Dublin D02 PN40 , Ireland
| | - Mehran Rafiee
- School of Engineering , Trinity College Dublin , Dublin D02 PN40 , Ireland
| | - Subhash Chandra
- School of Engineering , Trinity College Dublin , Dublin D02 PN40 , Ireland
| | - Hind Ahmed
- School of Engineering , Trinity College Dublin , Dublin D02 PN40 , Ireland
| | - Sarah McCormack
- School of Engineering , Trinity College Dublin , Dublin D02 PN40 , Ireland
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15
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Khan AU, Guo Y, Chen X, Liu G. Spectral-Selective Plasmonic Polymer Nanocomposites Across the Visible and Near-Infrared. ACS NANO 2019; 13:4255-4266. [PMID: 30908010 DOI: 10.1021/acsnano.8b09386] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
State-of-the-art commercial light-reflecting glass is coated with a metalized film to decrease the transmittance of electromagnetic waves. In addition to the cost of the metalized film, one major limitation of such light-reflecting glass is the lack of spectral selectivity over the entire visible and near-infrared (NIR) spectrum. To address this challenge, we herein effectively harness the transmittance, reflectance, and filtration of any wavelength across the visible and NIR, by judiciously controlling the planar orientation of two-dimensional plasmonic silver nanoplates (AgNPs) in polymer nanocomposites. In contrast to conventional bulk polymer nanocomposites where plasmonic nanoparticles are randomly mixed within a polymer matrix, our thin-film polymer nanocomposites comprise a single layer, or any desired number of multiple layers, of planarly oriented AgNPs separated by tunable spacings. This design employs a minimal amount of metal and yet efficiently manages light across the visible and NIR. The thin-film plasmonic polymer nanocomposites are expected to have a significant impact on spectral-selective light modulation, sensing, optics, optoelectronics, and photonics.
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16
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Abstract
Grafting polymers to nanoparticle surfaces influences properties from the conformation of the polymer chains to the dispersion and assembly of nanoparticles within a polymeric material. Recently, a small body of work has begun to address the question of how grafting polymers to a nanoparticle surface impacts chain dynamics, and the resulting physical properties of a material. This Review discusses recent work that characterizes the structure and dynamics of polymers that are grafted to nanoparticles and opportunities for future research. Starting from the case of a single polymer chain attached to a nanoparticle core, this Review follows the structure of the chains as grafting density increases, and how this structure slows relaxation of polymer chains and affects macroscopic material properties.
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Affiliation(s)
- Michael J A Hore
- Department of Macromolecular Science & Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, USA.
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17
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Computational characterization and control of electrical conductivity of nanowire composite network under mechanical deformation. Sci Rep 2018; 8:16617. [PMID: 30413787 PMCID: PMC6226518 DOI: 10.1038/s41598-018-34992-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 10/26/2018] [Indexed: 11/08/2022] Open
Abstract
Quantitative models to predict the electrical performance of 1-D nanowire (NW) composite networks under external deformation such as bending and patterning are developed by Monte-Carlo based computations, and appropriate solutions are addressed to enhance the tolerance of the sheet resistance (Rs) of the NW networks under the deformation. In addition, several strategies are employed to improve further the robustness of the sheet resistance against the network deformation. In the case of bending, outstanding bending durability of a hybrid NW network coated on a 2-D sheet is confirmed with a numerical model, and a network of NWs aligned unidirectionally toward bend axis is introduced to alleviate the sheet resistance degradation. In the case of a narrowly patterned channel, the conductivity enhancement of a network of NWs aligned in parallel to the channel with reduced channel is validated, and a network made with two types of NWs with different lengths is suggested to enhance the tolerance of the electrical conductivity. The results offer useful design guidelines to the use of the 1-D NW percolation network for flexible transparent conducting electrodes.
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Pan S, Fu C, Zhu M, He L, Yang Y, Zhang H, Liu X, Qiu F, Lin Z, Peng J. Hierarchical Self-Assembly of Conjugated Block Copolymers and Semiconducting Nanorods into One-Dimensional Nanocomposites. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01744] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Shuang Pan
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | | | | | | | | | | | | | | | - Zhiqun Lin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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19
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Chen Y, Xu Q, Jin Y, Qian X, Liu L, Liu J, Ganesan V. Design of End-to-End Assembly of Side-Grafted Nanorods in a Homopolymer Matrix. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00292] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Yulong Chen
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Qian Xu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yangfu Jin
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xin Qian
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Li Liu
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jun Liu
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Venkat Ganesan
- Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
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20
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Zhang S, Pelligra CI, Feng X, Osuji CO. Directed Assembly of Hybrid Nanomaterials and Nanocomposites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705794. [PMID: 29520839 DOI: 10.1002/adma.201705794] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/22/2017] [Indexed: 05/19/2023]
Abstract
Hybrid nanomaterials are molecular or colloidal-level combinations of organic and inorganic materials, or otherwise strongly dissimilar materials. They are often, though not exclusively, anisotropic in shape. A canonical example is an inorganic nanorod or nanosheet sheathed in, or decorated by, a polymeric or other organic material, where both the inorganic and organic components are important for the properties of the system. Hybrid nanomaterials and nanocomposites have generated strong interest for a broad range of applications due to their functional properties. Generating macroscopic assemblies of hybrid nanomaterials and nanomaterials in nanocomposites with controlled orientation and placement by directed assembly is important for realizing such applications. Here, a survey of critical issues and themes in directed assembly of hybrid nanomaterials and nanocomposites is provided, highlighting recent efforts in this field with particular emphasis on scalable methods.
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Affiliation(s)
- Shanju Zhang
- Department of Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
| | - Candice I Pelligra
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06511, USA
| | - Xunda Feng
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06511, USA
| | - Chinedum O Osuji
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06511, USA
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21
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Shen J, Li X, Zhang L, Lin X, Li H, Shen X, Ganesan V, Liu J. Mechanical and Viscoelastic Properties of Polymer-Grafted Nanorod Composites from Molecular Dynamics Simulation. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00183] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Jianxiang Shen
- Department of Polymer Science and Engineering, Jiaxing University, Jiaxing 314001, P. R. China
| | - Xue Li
- Department of Chemical and Textile Engineering, Jiaxing University Nanhu College, Jiaxing 314001, P. R. China
| | - Liqun Zhang
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xiangsong Lin
- Department of Polymer Science and Engineering, Jiaxing University, Jiaxing 314001, P. R. China
| | - Haidong Li
- Department of Polymer Science and Engineering, Jiaxing University, Jiaxing 314001, P. R. China
| | - Xiaojun Shen
- Department of Polymer Science and Engineering, Jiaxing University, Jiaxing 314001, P. R. China
| | - Venkat Ganesan
- Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jun Liu
- Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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22
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Zhao J, Wu L, Zhan C, Shao Q, Guo Z, Zhang L. Overview of polymer nanocomposites: Computer simulation understanding of physical properties. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.10.035] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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23
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Gollanapalli V, Manthri A, Sankar UK, Tripathy M. Dispersion, Phase Separation, and Self-Assembly of Polymer-Grafted Nanorod Composites. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vaishnavi Gollanapalli
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076 Maharashtra, India
| | - Anirudh Manthri
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076 Maharashtra, India
| | - Uma K. Sankar
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076 Maharashtra, India
| | - Mukta Tripathy
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076 Maharashtra, India
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24
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Maity S, Wu WC, Tracy JB, Clarke LI, Bochinski JR. Nanoscale steady-state temperature gradients within polymer nanocomposites undergoing continuous-wave photothermal heating from gold nanorods. NANOSCALE 2017; 9:11605-11618. [PMID: 28770914 DOI: 10.1039/c7nr04613h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Anisotropically-shaped metal nanoparticles act as nanoscale heaters via excitation of a localized surface plasmon resonance, utilizing a photothermal effect which converts the optical energy into local heat. Steady-state temperatures within a polymer matrix embedded with gold nanorods undergoing photothermal heating using continuous-wave excitation are measured in the immediate spatial vicinity of the nanoparticle (referred to as the local temperature) from observing the rate of physical rotation of the asymmetric nanoparticles within the locally created polymer melt. Average temperatures across the entire (mostly solid) sample (referred to as the global temperature) are simultaneously observed using a fluorescence method from randomly dispersed molecular emitters. Comparing these two independent measurements in films having varying concentrations of nanorods reveals the interplay between the local and global temperatures, clearly demonstrating the capability of these material samples to sustain large steady-state spatial temperature gradients when experiencing continuous-wave excitation photothermal heating. These results are discussed quantitatively. Illustrative imaging studies of nanofibers under photothermal heating also support the presence of a large temperature gradient. Photothermal heating in this manner has potential utility in creating unique thermal processing conditions for outcomes such as driving chemical reactions, inducing crystallinity changes, or enhancing degradation processes in a manner unachievable by conventional heating methods.
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Affiliation(s)
- Somsubhra Maity
- Department of Physics, North Carolina State University, Raleigh, NC 27695-8202, USA.
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25
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Khan AU, Scruggs C, Hicks D, Liu G. Two-Dimensional Plasmonic Nanoparticle as a Nanoscale Sensor to Probe Polymer Brush Formation. Anal Chem 2017. [PMID: 28629218 DOI: 10.1021/acs.analchem.7b01361] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Assad U. Khan
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - Clayton Scruggs
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - David Hicks
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - Guoliang Liu
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
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26
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Abstract
Current interest in functional assemblies of inorganic nanoparticles (NPs) stems from their collective properties and diverse applications ranging from nanomedicines to optically active metamaterials. Coating the surface of NPs with polymers allows for tailoring of the interactions between NPs to assemble them into hybrid nanocomposites with targeted architectures. This class of building blocks is termed "hairy" inorganic NPs (HINPs). Regiospecific attachment of polymers has been used to achieve directional interactions for HINP assembly. However, to date anisotropic surface functionalization of NPs still remains a challenge. This Account provides a review of the recent progress in the self-assembly of isotropically functionalized HINPs in both the condensed state and aqueous solution as well as the applications of assembled structures in such areas as biomedical imaging and therapy. It aims to provide fundamental mechanistic insights into the correlation between structural characteristics and self-assembly behaviors of HINPs, with an emphasis on HINPs made from NPs grafted with linear block copolymer (BCP) brushes. The key to the anisotropic self-assembly of these HINPs is the generation of directional interactions between HINPs by designing the surrounding medium (e.g., polymer matrix) or engineering the surface chemistry of the HINPs. First, HINPs can self-assemble into a variety of 1D, 2D, or 3D nanostructures with a nonisotropic local arrangement of NPs in films. Although a template is not always required, a polymer matrix (BCPs or supramolecules) can be used to assist the assembly of HINPs to form hybrid architectures. The interactions between brushes of neighboring HINPs or between HINPs and the polymer matrix can be modulated by varying the grafting density and length of one or multiple types of polymers on the surface of the NPs. Second, the rational design of deformable brushes of BCP or mixed homopolymer tethers on HINPs enables the anisotropic assembly of HINPs (in analogy to molecular self-assembly) into complex functional structures in selective solvents. It is evidenced that the directional interactions between BCP-grafted NPs arise from the redistribution and conformation change of the long, flexible polymer tethers, while the lateral phase separation of brushes on NP surfaces is responsible for the assembly of HINPs carrying binary immiscible homopolymers. For HINPs decorated with amphiphilic BCP brushes, their self-assembly can produce a variety of hybrid structures, such as vesicles with a monolayer of densely packed NPs in the membranes and with controlled sizes, shapes (e.g., spherical, hemispherical, disklike), and morphologies (e.g., patchy, Janus-like). This strategy allows fine-tuning of the NP organization and collective properties of HINP assemblies, thus facilitating their application in effective cancer imaging, therapy, and drug delivery. We expect that the design and assembly of such HINPs with isotropic functionalization is likely to open up new avenues for the fabrication of new functional nanocomposites and devices because of its simplicity, low cost, and ease of scale-up.
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Affiliation(s)
- Chenglin Yi
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Shaoyi Zhang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Kyle Thomas Webb
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Zhihong Nie
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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27
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Shen J, Li X, Shen X, Liu J. Insight into the Dispersion Mechanism of Polymer-Grafted Nanorods in Polymer Nanocomposites: A Molecular Dynamics Simulation Study. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02284] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jianxiang Shen
- College
of Materials and Textile Engineering, Jiaxing University, Jiaxing 314001, P. R. China
| | - Xue Li
- Department
of Chemical and Textile Engineering, Jiaxing University Nanhu College, Jiaxing 314001, P. R. China
| | - Xiaojun Shen
- College
of Materials and Textile Engineering, Jiaxing University, Jiaxing 314001, P. R. China
| | - Jun Liu
- Key
Laboratory of Beijing City on Preparation and Processing of Novel
Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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28
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Wu J, Xu Y, Li D, Ma X, Tian H. End-to-end assembly and disassembly of gold nanorods based on photo-responsive host–guest interaction. Chem Commun (Camb) 2017; 53:4577-4580. [DOI: 10.1039/c7cc01678f] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The end-to-end assembly and disassembly of gold nanorods were realized via HS-β-CD recognition and controllable by both UV light irradiation and guest competition.
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Affiliation(s)
- Jie Wu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- College of Chemistry and Molecular Engineering
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
| | - Yun Xu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- College of Chemistry and Molecular Engineering
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
| | - Dengfeng Li
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- College of Chemistry and Molecular Engineering
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
| | - Xiang Ma
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- College of Chemistry and Molecular Engineering
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
| | - He Tian
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- College of Chemistry and Molecular Engineering
- East China University of Science & Technology
- Shanghai 200237
- P. R. China
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29
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Rasin B, Chao H, Jiang G, Wang D, Riggleman RA, Composto RJ. Dispersion and alignment of nanorods in cylindrical block copolymer thin films. SOFT MATTER 2016; 12:2177-2185. [PMID: 26777462 DOI: 10.1039/c5sm02442k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Although significant progress has been made in controlling the dispersion of spherical nanoparticles in block copolymer thin films, our ability to disperse and control the assembly of anisotropic nanoparticles into well-defined structures is lacking in comparison. Here we use a combination of experiments and field theoretic simulations to examine the assembly of gold nanorods (AuNRs) in a block copolymer. Experimentally, poly(2-vinylpyridine)-grafted AuNRs (P2VP-AuNRs) are incorporated into poly(styrene)-b-poly(2-vinylpyridine) (PS-b-P2VP) thin films with a vertical cylinder morphology. At sufficiently low concentrations, the AuNRs disperse in the block copolymer thin film. For these dispersed AuNR systems, atomic force microscopy combined with sequential ultraviolet ozone etching indicates that the P2VP-AuNRs segregate to the base of the P2VP cylinders. Furthermore, top-down transmission electron microscopy imaging shows that the P2VP-AuNRs mainly lie parallel to the substrate. Our field theoretic simulations indicate that the NRs are strongly attracted to the cylinder base where they can relieve the local stretching of the minority block of the copolymer. These simulations also indicate conditions that will drive AuNRs to adopt a vertical orientation, namely by increasing nanorod length and/or reducing the wetting of the short block towards the substrate.
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Affiliation(s)
- Boris Rasin
- Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
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30
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Karatrantos A, Clarke N, Kröger M. Modeling of Polymer Structure and Conformations in Polymer Nanocomposites from Atomistic to Mesoscale: A Review. POLYM REV 2016. [DOI: 10.1080/15583724.2015.1090450] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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31
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Khani S, Jamali S, Boromand A, Hore MJA, Maia J. Polymer-mediated nanorod self-assembly predicted by dissipative particle dynamics simulations. SOFT MATTER 2015; 11:6881-6892. [PMID: 26235000 DOI: 10.1039/c5sm01560j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Self-assembly of nanoparticles in polymer matrices is an interesting and growing subject in the field of nanoscience and technology. We report herein on modelling studies of the self-assembly and phase behavior of nanorods in a homopolymer matrix, with the specific goal of evaluating the role of deterministic entropic and enthalpic factors that control the aggregation/dispersion in such systems. Grafting polymer brushes from the nanorods is one approach to control/impact their self-assembly capabilities within a polymer matrix. From an energetic point of view, miscible interactions between the brush and the matrix are required for achieving a better dispersibility; however, grafting density and brush length are the two important parameters in dictating the morphology. Unlike in previous computational studies, the present Dissipative Particle Dynamics (DPD) simulation framework is able to both predict dispersion or aggregation of nanorods and determine the self-assembled structure, allowing for the determination of a phase diagram, which takes all of these factors into account. Three types of morphologies are predicted: dispersion, aggregation and partial aggregation. Moreover, favorable enthalpic interactions between the brush and the matrix are found to be essential for expanding the window for achieving a well-dispersed morphology. A three-dimensional phase diagram is mapped on which all the afore-mentioned parameters are taken into account. Additionally, in the case of immiscibility between brushes and the matrix, simulations predict the formation of some new and tunable structures.
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Affiliation(s)
- Shaghayegh Khani
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, USA.
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32
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Lo CT, Li MH, Lin WT. The dispersion state of magnetic nanorods in homopolymers and block copolymers. J Chem Phys 2015; 142:184903. [DOI: 10.1063/1.4921042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Chieh-Tsung Lo
- Department of Chemical Engineering, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan
| | - Ming-Hsuan Li
- Department of Chemical Engineering, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan
| | - Wei-Ting Lin
- Department of Chemical Engineering, National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan
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33
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Zhang CY, Jian XL, Lu W. Structure and percolation of one-patch spherocylinders. SOFT MATTER 2015; 11:1362-1368. [PMID: 25575168 DOI: 10.1039/c4sm02402h] [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
When the volume fraction exceeds the threshold, the colloidal particles would form a spanning cluster to realize percolation, which is affected by the shape of the particles, interaction between particles, etc. In this paper, we use the Monte Carlo method to study the structure and percolation of a system of one-patch spherocylinders which have been fabricated recently [Chaudhary et al., J. Am. Chem. Soc., 2012, 134, 12901]. With strong adsorption, one-patch spherocylinders self-assemble into multipods which further make contact with each other to form a percolation network at a high volume fraction, while the percolation network is inhibited by the local structures in a system of one-patch spheres. The main multipods are dipods when the patch angle equals π/3, while they are tetrapods and pentapods when the patch angle equals 2π/3. With enhancing the adsorption, the bigger the patch angle, the more the percolation threshold drops. The orientational order parameter, the distribution of the relative orientation between the nearest neighbors and the probabilities of a spherocylinder owning n adsorbing neighbors have been calculated to analyze the formation and transition of the structures.
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Affiliation(s)
- Cheng-Yu Zhang
- College of Engineering, Nanjing Agricultural University, Nanjing 210031, China.
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34
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Anisotropic Gold Nanoparticles: Preparation, Properties, and Applications. ANISOTROPIC NANOMATERIALS 2015. [DOI: 10.1007/978-3-319-18293-3_3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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35
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Lai F, Borca-Tasciuc T, Iruvanti S, Plawsky J. On the sintering of gold nanorod assemblies towards continuous networks. RSC Adv 2015. [DOI: 10.1039/c5ra07900d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We present an approach for the coalescence and sintering of a gold nanorod assembly by thermal annealing at low temperatures. The sintering process initially takes place locally, resulting in aggregates which eventually grow into a continuous, percolating network structure.
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Affiliation(s)
- Fengyuan Lai
- Department of Materials Science and Engineering
- Rensselaer Polytechnic Institute
- Troy
- USA
| | - Theodorian Borca-Tasciuc
- Department of Mechanical
- Aerospace and Nuclear Engineering
- Rensselaer Polytechnic Institute
- Troy
- USA
| | | | - Joel Plawsky
- Department of Chemical and Biological Engineering
- Rensselaer Polytechnic Institute
- Troy
- USA
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36
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Tritschler U, Zlotnikov I, Keckeis P, Schlaad H, Cölfen H. Optical properties of self-organized gold nanorod-polymer hybrid films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:13781-13790. [PMID: 25350776 DOI: 10.1021/la503507u] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
High fractions of gold nanorods were locally aligned by means of a polymeric liquid crystalline phase. The gold nanorods constituting >80 wt % of the thin organic-inorganic composite films form a network with side-by-side and end-to-end combinations. Organization into these network structures was induced by shearing gold nanorod-LC polymer dispersions via spin-coating. The LC polymer is a polyoxazoline functionalized with pendent cholesteryl and carboxyl side groups enabling the polymer to bind to the CTAB stabilizer layer of the gold nanorods via electrostatic interactions, thus forming the glue between organic and inorganic components, and to form a chiral nematic lyotropic phase. The self-assembled locally oriented gold nanorod structuring enables control over collective optical properties due to plasmon resonance coupling, reminiscent of enhanced optical properties of natural biomaterials.
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Affiliation(s)
- Ulrich Tritschler
- Physical Chemistry, University of Konstanz , Universitätsstraße 10, D-78457 Konstanz, Germany
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37
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Feng Y, Ning N, Wei Z, Zhang L, Tian M, Zou H, Mi J. Towards optimization of electrical network and mechanical property of polymer nanocomposites with grafted nanoparticles. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.05.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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38
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Wang D, Hore MJA, Ye X, Zheng C, Murray CB, Composto RJ. Gold nanorod length controls dispersion, local ordering, and optical absorption in polymer nanocomposite films. SOFT MATTER 2014; 10:3404-3413. [PMID: 24643463 DOI: 10.1039/c3sm52514g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The dispersion, local orientation and optical absorption of polystyrene (PS, degree of polymerization P) nanocomposites containing PS-grafted gold nanorods (Au NRs, PS degree of polymerization N), with aspect ratios (ν = length/diameter) ranging from 2.5 to 6.3, are studied using quantitative scanning electron microscopy (SEM) and optical spectroscopy. The experimentally observed nanorod assemblies and optical absorptions are compared with predictions from self-consistent field theory (SCFT) and finite difference time domain (FDTD) calculations, respectively. A pair correlation function for Au NRs is calculated from SEM images, and contains no correlation peaks for P/N = 0.9, indicating nanorods are dispersed within the nanocomposite. Large correlation peaks are observed for P/N = 7.6, representative of interparticle separation distances within nanorod aggregates, which do not vary with ν. On the basis of SCFT calculations, aggregation is attributed to significant depletion-attraction forces in the composite for P/N > 1. When Au NRs disperse, the longitudinal surface plasmon resonance (LSPR) peak red shifts from the visible into the near-IR as ν increases. No shift in the dispersed LSPR position is observed for v = 2.5 and 3.3 upon aggregation because the ratio of the interparticle distance to the nanorod length is too large for surface plasmon coupling. However, for v = 6.3, significant coupling between surface plasmons leads to a blue shift of the LSPR by approximately 140 nm, in agreement with FDTD calculations.
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Affiliation(s)
- Dongliang Wang
- Department of Materials Science & Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA 19104, USA.
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Kwon T, Ku KH, Kang DJ, Lee WB, Kim BJ. Aspect-Ratio Effect of Nanorod Compatibilizers in Conducting Polymer Blends. ACS Macro Lett 2014; 3:398-404. [PMID: 35590771 DOI: 10.1021/mz500024n] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Nanoparticles (NPs) at the interface between two different polymer blends or fluid mixtures can function as compatibilizers, thereby dramatically improving the interfacial properties of the blends or the fluid mixtures. Their compatibilizing ability is strongly dependent on their size, shape, and aspect ratios (ARs), which determines their adsorption energy to the interface as well as their entropic penalty when they are being strongly segregated at the interface. Herein, we investigated the effect of the ARs of nanorod surfactants on the conducting polymer blend of poly(triphenylamine) (PTPA) templated by polystyrene (PS) colloids. The lengths of the polymer-coated CuPt nanorods (CuPt NRs) were 5, 15, and 32 nm with a fixed width of 5 nm, thus producing three different AR values of 1, 3, and 6, respectively. For quantitative analysis, the morphological and electrical behaviors of the polymer blends were investigated in terms of the volume fraction and AR of the NRs. The dramatic change in the morphological and electrical properties of the blend film was observed for all three NR surfactants at the NR volume fraction of approximately 1 vol %. Therefore, NR surfactants with larger ARs had better compatibilizing power for a given number of NRs in the blends. Also, they exhibited a stronger tendency to be aligned parallel to the PS/PTPA interface. Also, we demonstrated the successful use of the NR surfactants in the fabrication of conducting polymer blend film that requires only minimal concentrations of conducting polymers. To the best of our knowledge, this is the first report of an experiment on the AR effect of NR compatibilizers in polymer blends.
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Affiliation(s)
- Taegyun Kwon
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701 Republic of Korea
| | - Kang Hee Ku
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701 Republic of Korea
| | - Dong Jin Kang
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701 Republic of Korea
| | - Won Bo Lee
- Department
of Chemical and Biomolecular Engineering, Sogang University, Seoul, 121-742 Republic of Korea
| | - Bumjoon J. Kim
- Department
of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701 Republic of Korea
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Zhu H, Du M, Zhang M, Wang P, Bao S, Zou M, Fu Y, Yao J. Self-assembly of various Au nanocrystals on functionalized water-stable PVA/PEI nanofibers: A highly efficient surface-enhanced Raman scattering substrates with high density of “hot” spots. Biosens Bioelectron 2014; 54:91-101. [DOI: 10.1016/j.bios.2013.10.047] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 10/08/2013] [Accepted: 10/22/2013] [Indexed: 12/15/2022]
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Li C, Li Y, Ling Y, Lai Y, Wu C, Zhao Y. Exploration of the growth process of ultrathin silica shells on the surface of gold nanorods by the localized surface plasmon resonance. NANOTECHNOLOGY 2014; 25:045704. [PMID: 24394626 DOI: 10.1088/0957-4484/25/4/045704] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Ultrathin silica coating (UTSC) has emerged as an effective way to improve the compatibility and stability of nanoparticles without attenuating their intrinsic optical properties. Exploration strategies to probe the growth process of ultrathin silica shells on the surface of nanoparticles would represent a valuable innovation that would benefit the development of ultrathin silica coated nanoparticles and their relevant applications. In this work, we report a unique, very effective and straightforward strategy for probing the growth of ultrathin silica shells on the surface of gold nanorods (Au NRs), which exploits the localized surface plasmon resonance (LSPR) as a reporting signal. The thickness of the ultrathin silica shells on the surface of Au NRs can be quantitatively measured and predicted in the range of 0.5-3.5 nm. It is demonstrated that the LSPR shift accurately reflects the real-time change in the thickness of the ultrathin silica shells on Au NRs during the growth process. By using the developed strategy, we further analyze the growth of UTSC on the surface of Au NRs via feeding of Na2SiO3 in a stepwise manner. The responsiveness analysis of LSPR also provides important insight into the shielding effect of UTSC on the surface of Au NRs that is not accessible with conventional strategies. This LSPR-based strategy permits exploration of the surface-mediated sol-gel reactions of silica from a new point of view.
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42
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Srivastava S, Schaefer JL, Yang Z, Tu Z, Archer LA. 25th anniversary article: polymer-particle composites: phase stability and applications in electrochemical energy storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:201-234. [PMID: 24323839 DOI: 10.1002/adma.201303070] [Citation(s) in RCA: 134] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 08/24/2013] [Indexed: 06/03/2023]
Abstract
Polymer-particle composites are used in virtually every field of technology. When the particles approach nanometer dimensions, large interfacial regions are created. In favorable situations, the spatial distribution of these interfaces can be controlled to create new hybrid materials with physical and transport properties inaccessible in their constituents or poorly prepared mixtures. This review surveys progress in the last decade in understanding phase behavior, structure, and properties of nanoparticle-polymer composites. The review takes a decidedly polymers perspective and explores how physical and chemical approaches may be employed to create hybrids with controlled distribution of particles. Applications are studied in two contexts of contemporary interest: battery electrolytes and electrodes. In the former, the role of dispersed and aggregated particles on ion-transport is considered. In the latter, the polymer is employed in such small quantities that it has been historically given titles such as binder and carbon precursor that underscore its perceived secondary role. Considering the myriad functions the binder plays in an electrode, it is surprising that highly filled composites have not received more attention. Opportunities in this and related areas are highlighted where recent advances in synthesis and polymer science are inspiring new approaches, and where newcomers to the field could make important contributions.
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Affiliation(s)
- Samanvaya Srivastava
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14853, USA
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43
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Boyd DA, Naciri J, Fontana J, Pacardo DB, Shields AR, Verbarg J, Spillmann CM, Ligler FS. Facile Fabrication of Color Tunable Film and Fiber Nanocomposites via Thiol Click Chemistry. Macromolecules 2014. [DOI: 10.1021/ma401636e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Darryl A. Boyd
- Center for Bio/Molecular Science & Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, D.C. 20375, United States
| | - Jawad Naciri
- Center for Bio/Molecular Science & Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, D.C. 20375, United States
| | - Jake Fontana
- Center for Bio/Molecular Science & Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, D.C. 20375, United States
| | - Dennis B. Pacardo
- Department
of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, EB3, Mail Stop 7115, Raleigh, North Carolina 27695-7115, United States
| | - Adam R. Shields
- Center for Bio/Molecular Science & Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, D.C. 20375, United States
| | - Jasenka Verbarg
- Center for Bio/Molecular Science & Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, D.C. 20375, United States
| | - Christopher M. Spillmann
- Center for Bio/Molecular Science & Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, D.C. 20375, United States
| | - Frances S. Ligler
- Department
of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, EB3, Mail Stop 7115, Raleigh, North Carolina 27695-7115, United States
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Affiliation(s)
- Michael J. A. Hore
- Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Russell J. Composto
- Department
of Materials Science and Engineering and the Laboratory for Research
on the Structure of Matter, University of Pennsylvania, 3231 Walnut
Street, Philadelphia, Pennsylvania 19104, United States
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Affiliation(s)
- Wei Li
- Key Laboratory of Advanced
Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Bojun Dong
- Key Laboratory of Advanced
Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Li-Tang Yan
- Key Laboratory of Advanced
Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
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Hartmann L, Djurado D, Florea I, Legrand JF, Fiore A, Reiss P, Doyle S, Vorobiev A, Pouget S, Chandezon F, Ersen O, Brinkmann M. Large-Scale Simultaneous Orientation of CdSe Nanorods and Regioregular Poly(3-hexylthiophene) by Mechanical Rubbing. Macromolecules 2013. [DOI: 10.1021/ma400880x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Lucia Hartmann
- ICS (UPR22-CNRS), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
- UMR SPrAM 5819 (CEA-CNRS-UJF) and SP2M, CEA Grenoble/INAC, 38054 Grenoble
Cedex, France
| | - David Djurado
- UMR SPrAM 5819 (CEA-CNRS-UJF) and SP2M, CEA Grenoble/INAC, 38054 Grenoble
Cedex, France
| | - Ileana Florea
- IPCMS (UMR 7504 CNRS − Université de Strasbourg), 23 rue du
Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | | | - Angela Fiore
- UMR SPrAM 5819 (CEA-CNRS-UJF) and SP2M, CEA Grenoble/INAC, 38054 Grenoble
Cedex, France
| | - Peter Reiss
- UMR SPrAM 5819 (CEA-CNRS-UJF) and SP2M, CEA Grenoble/INAC, 38054 Grenoble
Cedex, France
| | - Stephen Doyle
- Institut für Synchrotronstrahlung (ISS), Hermann-von-Helmholtz-Platz
1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Alexeï Vorobiev
- ESRF, 6 rue J. Horovitz,
BP220, 38043 Grenoble Cedex 9, France
| | - Stéphanie Pouget
- UMR SPrAM 5819 (CEA-CNRS-UJF) and SP2M, CEA Grenoble/INAC, 38054 Grenoble
Cedex, France
| | - Frédéric Chandezon
- UMR SPrAM 5819 (CEA-CNRS-UJF) and SP2M, CEA Grenoble/INAC, 38054 Grenoble
Cedex, France
| | - Ovidiu Ersen
- IPCMS (UMR 7504 CNRS − Université de Strasbourg), 23 rue du
Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - Martin Brinkmann
- ICS (UPR22-CNRS), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
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47
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Zhang SY, Liu JW, Zhang CL, Yu SH. Co-assembled thin films of Ag nanowires and functional nanoparticles at the liquid-liquid interface by shaking. NANOSCALE 2013; 5:4223-4229. [PMID: 23538908 DOI: 10.1039/c3nr33856h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this paper, we report the fabrication of co-assembled thin films composed of silver nanowires (NWs) and Au nanoparticles (NPs) at the liquid-liquid interface (water-chloroform) by vigorous shaking. The composition of co-assembled thin films can be controlled by adjusting the concentration of the nanosized building blocks. As a versatile interfacial assembly method, other nanoparticles such as Ag2S and Fe3O4 NPs can also be co-assembled with Ag NWs using the same procedure. Meanwhile, the co-assembly state of the obtained Au NPs and Ag NWs makes a significant contribution to the high sensitivity of surface-enhanced Raman scattering (SERS) to model the molecule 3,3'-diethylthiatricarbocyanine iodide (DTTCI). The SERS intensities show high dependence on the molar ratio of Au NPs and Ag NWs and the layer number of the co-assembled thin films. This shaking-assisted liquid-liquid assembly system has been proved to be a facile way for co-assembling nanowires and nanoparticles, and will pave a way for further applications of the macroscopic co-assemblies with novel functionalities.
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Affiliation(s)
- Shao-Yi Zhang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, PR China
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Huang H, Chen S, Liu F, Zhao Q, Liao B, Yi S, Zeng Y. Multiplex Plasmonic Sensor for Detection of Different Metal Ions Based on a Single Type of Gold Nanorod. Anal Chem 2013; 85:2312-9. [DOI: 10.1021/ac303305j] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Haowen Huang
- Laboratory
of Theoretical Chemistry and Molecular Simulation
of Ministry of Education. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan,
P. R. China
| | - Shenna Chen
- Laboratory
of Theoretical Chemistry and Molecular Simulation
of Ministry of Education. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan,
P. R. China
| | - Fang Liu
- Laboratory
of Theoretical Chemistry and Molecular Simulation
of Ministry of Education. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan,
P. R. China
| | - Qian Zhao
- Laboratory
of Theoretical Chemistry and Molecular Simulation
of Ministry of Education. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan,
P. R. China
| | - Bo Liao
- Laboratory
of Theoretical Chemistry and Molecular Simulation
of Ministry of Education. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan,
P. R. China
| | - Shoujun Yi
- Laboratory
of Theoretical Chemistry and Molecular Simulation
of Ministry of Education. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan,
P. R. China
| | - Yunlong Zeng
- Laboratory
of Theoretical Chemistry and Molecular Simulation
of Ministry of Education. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan,
P. R. China
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49
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Hore MJA, Composto RJ. Strategies for dispersing, assembling, and orienting nanorods in polymers. Curr Opin Chem Eng 2013. [DOI: 10.1016/j.coche.2012.10.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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50
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Vigderman L, Khanal BP, Zubarev ER. Functional gold nanorods: synthesis, self-assembly, and sensing applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:4811-41, 5014. [PMID: 22740090 DOI: 10.1002/adma.201201690] [Citation(s) in RCA: 445] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Indexed: 05/19/2023]
Abstract
Gold nanorods have received much attention due to their unique optical and electronic properties which are dependent on their shape, size, and aspect ratio. This article covers in detail the synthesis, functionalization, self-assembly, and sensing applications of gold nanorods. The synthesis of three major types of rods is discussed: single-crystalline and pentahedrally-twinned rods, which are synthesized by wet chemistry methods, and polycrystalline rods, which are synthesized by templated deposition. Functionalization of these rods is usually necessary for their applications, but can often be problematic due to their surfactant coating. Thus, general strategies are provided for the covalent and noncovalent functionalization of gold nanorods. The review will then examine the significant progress that has been made in controllable assembly of nanorods into various arrangements. This assembly can have a large effect on measurable properties of rods, making it particularly applicable towards sensing of a variety of analytes. Other types of sensing not dependent on nanorod assembly, such as refractive-index based sensing, are also discussed.
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Affiliation(s)
- Leonid Vigderman
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX 77005, USA
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