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Gao L. Anti-Entropy Aggregation of Minority Groups in Polymers: Design and Applications. Chempluschem 2024; 89:e202300638. [PMID: 38032334 DOI: 10.1002/cplu.202300638] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 12/01/2023]
Abstract
Minority groups are non-repeating units with very low content that inevitably exist in polymers. Typically, these minority groups are easily surrounded by the majority of repeating units and randomly dispersed, maximizing the entropy of minority groups. In the concept, anti-entropy aggregation (AEA) of minority groups is described, and different pathways are outlined. They are polymer crystallization-driven AEA, supramolecular interaction-induced AEA, phase separation-confined AEA, and hierarchical interactions-driven AEA. Typical applications of AEA materials are also presented, including fluorescence probes, self-healing materials, ion transporting regulation, and osmotic energy conversion. The concept of AEA is expected to inspire the fabrication of novel functional systems.
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Affiliation(s)
- Longcheng Gao
- Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, China
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2
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Singh S, Kumar L, Horechyy A, Aftenieva O, Mittal M, Sanwaria S, Srivastava RK, König TAF, Fery A, Nandan B. Block Copolymer-Templated Au@CdSe Core-Satellite Nanostructures with Solvent-Dependent Optical Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6231-6239. [PMID: 37074843 DOI: 10.1021/acs.langmuir.3c00479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In the present work, we report the fabrication and characterization of well-defined core-satellite nanostructures. These nanostructures comprise block copolymer (BCP) micelles, containing a single gold nanoparticle (AuNP) in the core and multiple photoluminescent cadmium selenide (CdSe) quantum dots (QDs) attached to the micelle's coronal chains. The asymmetric polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) BCP was employed to develop these core-satellite nanostructures in a series of P4VP-selective alcoholic solvents. The BCP micelles were first prepared in 1-propanol and subsequently mixed with AuNPs, followed by gradual addition of CdSe QDs. This method resulted in the development of spherical micelles that contained a PS/Au core and a P4VP/CdSe shell. These core-satellite nanostructures, developed in different alcoholic solvents, were further employed for the time-resolved photoluminescence analysis. It was found that solvent-selective swelling of the core-satellite nanostructures tunes the distance between the QDs and AuNPs and modulates their Förster resonance energy transfer (FRET) behavior. The average lifetime of the donor emission varied from 12.3 to 10.3 nanoseconds (ns) with the change in the P4VP-selective solvent within the core-satellite nanostructures. Furthermore, the distances between the donor and acceptor were also calculated using efficiency measurements and corresponding Förster distances. The resulting core-satellite nanostructures hold promising potential in various fields, such as photonics, optoelectronics, and sensors that utilize the FRET process.
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Affiliation(s)
- Sajan Singh
- Department of Textile & Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi- 110016, India
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, Dresden 01069, Germany
| | - Labeesh Kumar
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, Dresden 01069, Germany
| | - Andriy Horechyy
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, Dresden 01069, Germany
| | - Olha Aftenieva
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, Dresden 01069, Germany
| | - Mona Mittal
- Department of Chemistry, Galgotia College of Engineering and Technology, Greater Noida, Uttar Pradesh 201310, India
| | - Sunita Sanwaria
- Department of Chemistry, Deshbandhu College, University of Delhi, Delhi 110019, India
| | - Rajiv K Srivastava
- Department of Textile & Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi- 110016, India
| | - Tobias A F König
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, Dresden 01069, Germany
- Technische Universität Dresden, Physical Chemistry of Polymer Materials, 01062 Dresden, Germany
| | - Andreas Fery
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, Dresden 01069, Germany
- Technische Universität Dresden, Physical Chemistry of Polymer Materials, 01062 Dresden, Germany
| | - Bhanu Nandan
- Department of Textile & Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi- 110016, India
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3
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Ji W, Huang Z, Kentzinger E, Rücker U, Brückel T, Xiao Y. Nanoparticle-induced morphological transformation in block copolymer-based nanocomposites. NANOSCALE 2022; 14:8766-8775. [PMID: 35674291 DOI: 10.1039/d2nr01625g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
By controlling the chemical composition and the spatial organization of nanoparticles, hybrid nanocomposites incorporating ordered arrangements of nanoparticles could be endowed with exotic physical and chemical properties to fulfill demands in advanced electronics or energy-harvesting devices. However, a simple method to fabricate hybrid nanocomposites with precise control of nanoparticle distribution is still challenging. We demonstrate that block copolymer-based nanocomposites containing well-ordered nanoparticles with various morphologies can be readily obtained by adjusting the nanoparticle concentration. Moreover, the structural evolution of nanocomposite thin films as a function of nanoparticle loading is unveiled using grazing-incidence transmission small-angle X-ray scattering and atomic force microscopy. The morphological transformation proceeds through a phase transition from perforated lamellae to in-plane cylinder layout, followed by structural changes. The successful achievement of a variety of morphologies represents an effective and straightforward approach to producing functional hybrid nanocomposites for potential applications in various functional devices.
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Affiliation(s)
- Wenhai Ji
- School of Advanced Materials, Peking University, Shenzhen Graduate School, 518055 Shenzhen, China.
- Jülich Centre for Neutron Science JCNS and Peter Grünberg Institut PGI, JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Zhongyuan Huang
- School of Advanced Materials, Peking University, Shenzhen Graduate School, 518055 Shenzhen, China.
| | - Emmanuel Kentzinger
- Jülich Centre for Neutron Science JCNS and Peter Grünberg Institut PGI, JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Ulrich Rücker
- Jülich Centre for Neutron Science JCNS and Peter Grünberg Institut PGI, JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Thomas Brückel
- Jülich Centre for Neutron Science JCNS and Peter Grünberg Institut PGI, JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Yinguo Xiao
- School of Advanced Materials, Peking University, Shenzhen Graduate School, 518055 Shenzhen, China.
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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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Kim T, Xu M, Lee YJ, Ku KH, Shin DJ, Lee DC, Jang SG, Yun H, Kim BJ. Fluorescence Switchable Block Copolymer Particles with Doubly Alternate-Layered Nanoparticle Arrays. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2101222. [PMID: 34114319 DOI: 10.1002/smll.202101222] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/28/2021] [Indexed: 06/12/2023]
Abstract
The precise self-assembly of block copolymers (BCPs) and inorganic nanoparticles (NPs) under 3D confinement offers microparticles with programmable nanostructures and functionalities. Here, fluorescence-switchable hybrid microspheres are developed by forming doubly alternating arrays of Au NPs and CdSe/ZnS quantum dots (QDs) within polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) BCP domains. These doubly alternating arrays afford controlled nonradiative energy transfer (NRET) between the QDs and Au NPs that is dependent on the layer-to-layer distance. Solvent-selective swelling of the hybrid particles tunes the distance between layers, modulating their NRET behavior and affording switchable fluorescence. The particle fluorescence is "OFF" in water through strong NRET from the QDs to Au NPs, but is "ON" in alcohols due to the increased distance between the Au NP and QD arrays in the swollen P4VP domains. The experimentally observed NRET intensity as a function of interparticle distance shows larger quenching efficiencies than those theoretically predicted due to the enhanced quenching within a 3D-confined system. Finally, the robust and reversible fluorescence switching of the hybrid particles in different solvents is demonstrated, highlighting their potentials for bioimaging, sensing, and diagnostic applications.
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Affiliation(s)
- Taewan Kim
- 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
| | - Young Jun Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Kang Hee Ku
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Do Joong Shin
- 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
| | - Se Gyu Jang
- Functional Composite Materials Research Center, Korea Institute of Science and Technology (KIST), Jeonbuk, 55324, Republic of Korea
| | - Hongseok Yun
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - 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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Singh S, Horechyy A, Yadav S, Formanek P, Hübner R, Srivastava RK, Sapra S, Fery A, Nandan B. Nanoparticle-Stabilized Perforated Lamellar Morphology in Block Copolymer/Quantum Dot Hybrids. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02639] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sajan Singh
- Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, Dresden 01069, Germany
| | - Andriy Horechyy
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, Dresden 01069, Germany
| | - Sushma Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Petr Formanek
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, Dresden 01069, Germany
| | - René Hübner
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, Dresden 01328, Germany
| | - Rajiv K. Srivastava
- Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Sameer Sapra
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Andreas Fery
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, Dresden 01069, Germany
| | - Bhanu Nandan
- Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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Bugakov M, Abdullaeva S, Samokhvalov P, Abramchuk S, Shibaev V, Boiko N. Hybrid fluorescent liquid crystalline composites: directed assembly of quantum dots in liquid crystalline block copolymer matrices. RSC Adv 2020; 10:15264-15273. [PMID: 35495438 PMCID: PMC9052221 DOI: 10.1039/d0ra02442b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 04/03/2020] [Indexed: 12/28/2022] Open
Abstract
Hybrid fluorescent liquid crystalline (LC) composites containing inorganic quantum dots (QDs) are promising materials for many applications in optics, nanophotonics and display technology, combining the superior emission capability of QDs with the externally controllable optical properties of LCs. In this work, we propose the hybrid LC composites that were obtained by embedding CdSe/ZnS QDs into a series of host LC block copolymers of different architectures by means of a two-stage ligand exchange procedure. The ABA/BAB triblock copolymers and AB diblock copolymers with different polymerization degrees are composed of nematogenic phenyl benzoate acrylic monomer units and poly(4-vinylpyridine) blocks, which are capable of binding to the QD surface. Our results clearly show that the spatial distribution of QDs within composite films as well as the formation of QD aggregates can be programed by varying the structure of the host block copolymer. The obtained composites form a nematic LC phase, with isotropization temperatures being close to those of the initial host block copolymers. In addition, the influence of the molecular architecture of the host block copolymers on fluorescence properties of the obtained composites is considered. The described strategy for the QD assembly should provide a robust and conventional route for the design of highly ordered hierarchical hybrid materials for many practical applications.
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Affiliation(s)
- Miron Bugakov
- Department of Chemistry, Moscow State University Leninskie Gory-1 119991 Moscow Russian Federation
| | - Sharifa Abdullaeva
- Department of Chemistry, Moscow State University Leninskie Gory-1 119991 Moscow Russian Federation
| | - Pavel Samokhvalov
- Laboratory of Nano-Bioengineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) 115522 Moscow Russia
| | - Sergey Abramchuk
- Department of Chemistry, Moscow State University Leninskie Gory-1 119991 Moscow Russian Federation
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences Moscow 119991 Russia
| | - Valery Shibaev
- Department of Chemistry, Moscow State University Leninskie Gory-1 119991 Moscow Russian Federation
| | - Natalia Boiko
- Department of Chemistry, Moscow State University Leninskie Gory-1 119991 Moscow Russian Federation
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Singh S, Singh A, Mittal M, Srivastava R, Sapra S, Nandan B. Fluorescence resonance energy transfer in multifunctional nanofibers designed via block copolymer self-assembly. Phys Chem Chem Phys 2019; 21:16137-16146. [PMID: 31292581 DOI: 10.1039/c9cp03349a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In the present study, we demonstrate the fabrication of multifunctional nanofibers, loaded with CdSe quantum dots (QDs) and sulforhodamine 101 (S101) dye, via the self-assembly process of a polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) block copolymer (BCP). The CdSe QDs and S101 dye were simultaneously incorporated in the cylindrical domains, constituted of P4VP blocks, of the self-assembled BCP structure. The cylindrical domains subsequently were isolated as individual nanofibers via the selective-swelling approach. The confinement imposed due to the nano-dimension geometry of the cylindrical domains enabled the QDs and S101 dye to localize within their Förster radius enabling an efficient fluorescence resonance energy transfer (FRET) between them. The mean lifetime of donor emission varied from 4.56 to 3.38 ns with the change in the ratio of S101 dye and CdSe QDs within the nanofibers. Furthermore, using efficiency measurements and the corresponding Förster distances, donor-acceptor distances were determined. Moreover, the kinetics of energy transfer from CdSe QDs to S101 was studied by the Poisson binding model, to understand the interactions between CdSe QDs and S101 dye molecules. The numbers of dye molecules per CdSe QD were determined, by assuming random distribution of S101 dye molecules around the CdSe QDs in the nanofibers. The results showed that the number of dye molecules per QD increased with increasing concentration of dye molecules in the nanofibers. The resulting multifunctional nanofibers could have potential applications in optoelectronics, photonics and sensors which utilize the FRET process.
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Affiliation(s)
- Sajan Singh
- Department of Textile Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Ajeet Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Mona Mittal
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Rajiv Srivastava
- Department of Textile Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Sameer Sapra
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Bhanu Nandan
- Department of Textile Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
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Derikov YI, Abetz C, Karpov ON, Shandryuk GA, Ezhov AA, Kudryavtsev YV, Abetz V. Polymeric and Low-Molecular Stabilizers for Au Nanoparticles in a Diblock Copolymer Matrix. POLYMER SCIENCE SERIES C 2018. [DOI: 10.1134/s1811238218020054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Lü J, Liu B, Shi B, Lü C. Coordination-induced assemblies of quantum dots in amphiphilic thermo-responsive block copolymer micelles: morphologies, optical properties and applications. Polym Chem 2018. [DOI: 10.1039/c8py00510a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Thermo-responsive dual-emitting QD/BCP assemblies with QDs located in the core (CDMs), shell (SDMs) and the interface (IDMs) between the core and the shell of micelles were constructed via coordination-driven assemblies for the selective detection of TNP and Hg2+ ions.
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Affiliation(s)
- Jianhua Lü
- Institute of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Bingxin Liu
- School of Mechanical Engineering
- Qinghai University
- Xining 810016
- P. R. China
| | - Bingfeng Shi
- Institute of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Changli Lü
- Institute of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
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