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Kim J, Chung W, Kim D, Kang J, Grandes Reyes CF, Jeong J, Kim KT. Semi-conductive micellar networks of all-conjugated diblock and triblock copolymer blends. Chem Commun (Camb) 2023; 59:3578-3581. [PMID: 36883350 DOI: 10.1039/d3cc00081h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
The crystallization-driven self-assembly of the blends of the all-conjugated block copolymers of poly(3-hexylthiophene) (P3HT) and poly(3-ethylhexylthiophene) (P3EHT) results in the cross-linking of the one-dimensional nanowires of P3HT-b-P3EHT, which is achieved by intercalating P3HT-b-P3EHT-b-P3HT into the nanowire cores. The micellar networks constitute flexible and porous materials that conduct electricity upon doping.
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Affiliation(s)
- Junyoung Kim
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea.
| | - Wooyeol Chung
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea.
| | - Dogyun Kim
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea.
| | - Junwoo Kang
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea.
| | | | - Jisu Jeong
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea.
| | - Kyoung Taek Kim
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea.
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2
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Hollingsworth WR, Johnston AR, Jia M, Luo L, Park Y, Meier W, Palmer J, Rolandi M, Ayzner AL. Influence of Backbone Regioregularity on the Optoelectronic and Mechanical Response of Conjugated Polyelectrolyte-Based Hydrogels. J Phys Chem B 2023; 127:2277-2285. [PMID: 36882905 PMCID: PMC10026064 DOI: 10.1021/acs.jpcb.3c00152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
The ability to form robust, optoelectronically responsive, and mechanically tunable hydrogels using facile processing is desirable for sensing, biomedical, and light-harvesting applications. We demonstrate that such a hydrogel can be formed using aqueous complexation between one conjugated and one nonconjugated polyelectrolyte. We show that the rheological properties of the hydrogel can be tuned using the regioregularity of the conjugated polyelectrolyte (CPE) backbone, leading to significantly different mesoscale gel morphologies. We also find that the exciton dynamics in the long-time limit reflect differences in the underlying electronic connectivity of the hydrogels as a function CPE regioregularity. The influence of excess small ions on the hydrogel structure and the exciton dynamics similarly depends on the regioregularity in a significant way. Finally, electrical impedance measurements lead us to infer that these hydrogels can act as mixed ionic/electronic conductors. We believe that such gels possess an attractive combination of physical-chemical properties that can be leveraged in multiple applications.
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Affiliation(s)
- William R Hollingsworth
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - Anna R Johnston
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - Manping Jia
- Electrical and Computer Engineering Department, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - Le Luo
- Electrical and Computer Engineering Department, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - Yunjeong Park
- Electrical and Computer Engineering Department, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - Walter Meier
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - Jack Palmer
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - Marco Rolandi
- Electrical and Computer Engineering Department, University of California Santa Cruz, Santa Cruz, California 95064, United States
| | - Alexander L Ayzner
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064, United States
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3
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Pitch GM, Matsushima LN, Kraemer Y, Dailing EA, Ayzner AL. Energy Transfer in Aqueous Light Harvesting Antennae Based on Brush-like Inter-Conjugated Polyelectrolyte Complexes. Macromolecules 2022; 55:10302-10311. [DOI: 10.1021/acs.macromol.2c01291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/13/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Gregory M. Pitch
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California95064, United States
| | - Levi N. Matsushima
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California95064, United States
| | - Yannick Kraemer
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California95064, United States
| | - Eric A. Dailing
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California94720, United States
| | - Alexander L. Ayzner
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California95064, United States
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4
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Bendrea AD, Cianga L, Ailiesei GL, Ursu EL, Göen Colak D, Cianga I. 3,4-Ethylenedioxythiophene (EDOT) End-Group Functionalized Poly-ε-caprolactone (PCL): Self-Assembly in Organic Solvents and Its Coincidentally Observed Peculiar Behavior in Thin Film and Protonated Media. Polymers (Basel) 2021; 13:2720. [PMID: 34451259 PMCID: PMC8400159 DOI: 10.3390/polym13162720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/10/2021] [Accepted: 08/12/2021] [Indexed: 01/05/2023] Open
Abstract
End-group functionalization of homopolymers is a valuable way to produce high-fidelity nanostructured and functional soft materials when the structures obtained have the capacity for self-assembly (SA) encoded in their structural details. Herein, an end-functionalized PCL with a π-conjugated EDOT moiety, (EDOT-PCL), designed exclusively from hydrophobic domains, as a functional "hydrophobic amphiphile", was synthesized in the bulk ROP of ε-caprolactone. The experimental results obtained by spectroscopic methods, including NMR, UV-vis, and fluorescence, using DLS and by AFM, confirm that in solvents with extremely different polarities (chloroform and acetonitrile), EDOT-PCL presents an interaction- and structure-based bias, which is strong and selective enough to exert control over supramolecular packing, both in dispersions and in the film state. This leads to the diversity of SA structures, including spheroidal, straight, and helical rods, as well as orthorhombic single crystals, with solvent-dependent shapes and sizes, confirming that EDOT-PCL behaves as a "block-molecule". According to the results from AFM imaging, an unexpected transformation of micelle-type nanostructures into single 2D lamellar crystals, through breakout crystallization, took place by simple acetonitrile evaporation during the formation of the film on the mica support at room temperature. Moreover, EDOT-PCL's propensity for spontaneous oxidant-free oligomerization in acidic media was proposed as a presumptive answer for the unexpected appearance of blue color during its dissolution in CDCl3 at a high concentration. FT-IR, UV-vis, and fluorescence techniques were used to support this claim. Besides being intriguing and unforeseen, the experimental findings concerning EDOT-PCL have raised new and interesting questions that deserve to be addressed in future research.
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Affiliation(s)
- Anca-Dana Bendrea
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore-Ghica Voda Alley, 700487 Iasi, Romania; (A.-D.B.); (E.-L.U.)
| | - Luminita Cianga
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore-Ghica Voda Alley, 700487 Iasi, Romania; (A.-D.B.); (E.-L.U.)
| | - Gabriela-Liliana Ailiesei
- NMR Spectroscopy Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore-Ghica Voda Alley, 700487 Iasi, Romania;
| | - Elena-Laura Ursu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore-Ghica Voda Alley, 700487 Iasi, Romania; (A.-D.B.); (E.-L.U.)
| | - Demet Göen Colak
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul 34469, Turkey;
| | - Ioan Cianga
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore-Ghica Voda Alley, 700487 Iasi, Romania; (A.-D.B.); (E.-L.U.)
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5
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6
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Akuzum B, Maleski K, Anasori B, Lelyukh P, Alvarez NJ, Kumbur EC, Gogotsi Y. Rheological Characteristics of 2D Titanium Carbide (MXene) Dispersions: A Guide for Processing MXenes. ACS NANO 2018; 12:2685-2694. [PMID: 29463080 DOI: 10.1021/acsnano.7b08889] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Understanding the rheological properties of two-dimensional (2D) materials in suspension is critical for the development of various solution processing and manufacturing techniques. 2D carbides and nitrides (MXenes) constitute one of the largest families of 2D materials with >20 synthesized compositions and applications already ranging from energy storage to medicine to optoelectronics. However, in spite of a report on clay-like behavior, not much is known about their rheological response. In this study, rheological behavior of single- and multilayer Ti3C2T x in aqueous dispersions was investigated. Viscous and viscoelastic properties of MXene dispersions were studied over a variety of concentrations from colloidal dispersions to high loading slurries, showing that a multilayer MXene suspension with up to 70 wt % can exhibit flowability. Processing guidelines for the fabrication of MXene films, coatings, and fibers have been established based on the rheological properties. Surprisingly, high viscosity was observed at very low concentrations for solutions of single-layer MXene flakes. Single-layer colloidal solutions were found to exhibit partial elasticity even at the lowest tested concentrations (<0.20 mg/mL) due to the presence of strong surface charge and excellent hydrophilicity of MXene, making them amenable to fabrication at dilute concentrations. Overall, the findings of this study provide fundamental insights into the rheological response of this quickly growing 2D family of materials in aqueous environments as well as offer guidelines for processing of MXenes.
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Affiliation(s)
- Bilen Akuzum
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering , Drexel University , Philadelphia , Pennsylvania 19104 , United States
- Electrochemical Energy Systems Laboratory, Department of Mechanical Engineering and Mechanics , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | - Kathleen Maleski
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | - Babak Anasori
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | - Pavel Lelyukh
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | - Nicolas Javier Alvarez
- Department of Chemical and Biological Engineering , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | - E Caglan Kumbur
- Electrochemical Energy Systems Laboratory, Department of Mechanical Engineering and Mechanics , Drexel University , Philadelphia , Pennsylvania 19104 , United States
| | - Yury Gogotsi
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering , Drexel University , Philadelphia , Pennsylvania 19104 , United States
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7
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Shinde S, Sartucci JL, Jones DK, Gavvalapalli N. Dynamic π-Conjugated Polymer Ionic Networks. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01896] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shekhar Shinde
- Department of Chemistry and
Institute for Soft Matter Synthesis and Metrology, Georgetown University, Washington, D.C. 20057, United States
| | - Jenna L. Sartucci
- Department of Chemistry and
Institute for Soft Matter Synthesis and Metrology, Georgetown University, Washington, D.C. 20057, United States
| | - Dorothy K. Jones
- Department of Chemistry and
Institute for Soft Matter Synthesis and Metrology, Georgetown University, Washington, D.C. 20057, United States
| | - Nagarjuna Gavvalapalli
- Department of Chemistry and
Institute for Soft Matter Synthesis and Metrology, Georgetown University, Washington, D.C. 20057, United States
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8
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Hladysh S, Bondarev D, Svoboda J, Vohlídal J, Vrbata D, Zedník J. Novel conjugated polyelectrolytes based on polythiophene bearing phosphonium side groups. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.07.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Vij V, Bhalla V, Kumar M. Hexaarylbenzene: Evolution of Properties and Applications of Multitalented Scaffold. Chem Rev 2016; 116:9565-627. [DOI: 10.1021/acs.chemrev.6b00144] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Varun Vij
- Department of Chemistry,
UGC Centre for Advanced Studies, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Vandana Bhalla
- Department of Chemistry,
UGC Centre for Advanced Studies, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Manoj Kumar
- Department of Chemistry,
UGC Centre for Advanced Studies, Guru Nanak Dev University, Amritsar, Punjab 143005, India
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10
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Huber RC, Ferreira AS, Aguirre JC, Kilbride D, Toso DB, Mayoral K, Zhou ZH, Kopidakis N, Rubin Y, Schwartz BJ, Mason TG, Tolbert SH. Structure and Conductivity of Semiconducting Polymer Hydrogels. J Phys Chem B 2016; 120:6215-24. [DOI: 10.1021/acs.jpcb.6b02202] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rachel C. Huber
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Amy S. Ferreira
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Jordan C. Aguirre
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Daniel Kilbride
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Daniel B. Toso
- Department of Microbiology, Immunology & Molecular Genetics, and Biomedical Engineering Program, UCLA, 609 Charles E. Young Drive South, Los Angeles, California 90095, United States
| | - Kenny Mayoral
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Z. Hong Zhou
- Department of Microbiology, Immunology & Molecular Genetics, and Biomedical Engineering Program, UCLA, 609 Charles E. Young Drive South, Los Angeles, California 90095, United States
- California NanoSystems
Institute, UCLA, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Nikos Kopidakis
- Chemical and Nanoscience
Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, United States
| | - Yves Rubin
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Benjamin J. Schwartz
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
- California NanoSystems
Institute, UCLA, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Thomas G. Mason
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Sarah H. Tolbert
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
- California NanoSystems
Institute, UCLA, 570 Westwood Plaza, Los Angeles, California 90095, United States
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11
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Voortman TP, Chiechi RC. Thin Films Formed from Conjugated Polymers with Ionic, Water-Soluble Backbones. ACS APPLIED MATERIALS & INTERFACES 2015; 7:28006-28012. [PMID: 25723354 DOI: 10.1021/acsami.5b00564] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This paper compares the morphologies of films of conjugated polymers in which the backbone (main chain) and pendant groups are varied between ionic/hydrophilic and aliphatic/hydrophobic. We observe that conjugated polymers in which the pendant groups and backbone are matched, either ionic-ionic or hydrophobic-hydrophobic, form smooth, structured, homogeneous films from water (ionic) or tetrahydrofuran (hydrophobic). Mismatched conjugated polymers, by contrast, form inhomogeneous films with rough topologies. The polymers with ionic backbone chains are conjugated polyions (conjugated polymers with closed-shell charges in the backbone), which are semiconducting materials with tunable bad-gaps, not unlike uncharged conjugated polymers.
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Affiliation(s)
- Thomas P Voortman
- Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, Groningen, AG 9747, The Netherlands
| | - Ryan C Chiechi
- Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen , Nijenborgh 4, Groningen, AG 9747, The Netherlands
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12
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Huber RC, Ferreira AS, Thompson R, Kilbride D, Knutson NS, Devi LS, Toso DB, Challa JR, Zhou ZH, Rubin Y, Schwartz BJ, Tolbert SH. POLARON DYNAMICS. Long-lived photoinduced polaron formation in conjugated polyelectrolyte-fullerene assemblies. Science 2015; 348:1340-3. [PMID: 26089510 PMCID: PMC6039100 DOI: 10.1126/science.aaa6850] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The efficiency of biological photosynthesis results from the exquisite organization of photoactive elements that promote rapid movement of charge carriers out of a critical recombination range. If synthetic organic photovoltaic materials could mimic this assembly, charge separation and collection could be markedly enhanced. We show that micelle-forming cationic semiconducting polymers can coassemble in water with cationic fullerene derivatives to create photoinduced electron-transfer cascades that lead to exceptionally long-lived polarons. The stability of the polarons depends on the organization of the polymer-fullerene assembly. Properly designed assemblies can produce separated polaronic charges that are stable for days or weeks in aqueous solution.
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Affiliation(s)
- Rachel C Huber
- Department of Chemistry and Biochemistry, University of California-Los Angeles (UCLA), Los Angeles, CA 90095-1569, USA
| | - Amy S Ferreira
- Department of Chemistry and Biochemistry, University of California-Los Angeles (UCLA), Los Angeles, CA 90095-1569, USA
| | - Robert Thompson
- Department of Chemistry and Biochemistry, University of California-Los Angeles (UCLA), Los Angeles, CA 90095-1569, USA
| | - Daniel Kilbride
- Department of Chemistry and Biochemistry, University of California-Los Angeles (UCLA), Los Angeles, CA 90095-1569, USA
| | - Nicholas S Knutson
- Department of Chemistry and Biochemistry, University of California-Los Angeles (UCLA), Los Angeles, CA 90095-1569, USA
| | - Lekshmi Sudha Devi
- Department of Chemistry and Biochemistry, University of California-Los Angeles (UCLA), Los Angeles, CA 90095-1569, USA
| | - Daniel B Toso
- Department of Microbiology, Immunology and Molecular Genetics, and the Biomedical Engineering Program, UCLA, Los Angeles, CA 90095, USA
| | - J Reddy Challa
- Department of Chemistry and Biochemistry, University of California-Los Angeles (UCLA), Los Angeles, CA 90095-1569, USA
| | - Z Hong Zhou
- Department of Microbiology, Immunology and Molecular Genetics, and the Biomedical Engineering Program, UCLA, Los Angeles, CA 90095, USA. The California NanoSystems Institute (CNSI), UCLA, Los Angeles, CA 90095, USA
| | - Yves Rubin
- Department of Chemistry and Biochemistry, University of California-Los Angeles (UCLA), Los Angeles, CA 90095-1569, USA.
| | - Benjamin J Schwartz
- Department of Chemistry and Biochemistry, University of California-Los Angeles (UCLA), Los Angeles, CA 90095-1569, USA. The California NanoSystems Institute (CNSI), UCLA, Los Angeles, CA 90095, USA.
| | - Sarah H Tolbert
- Department of Chemistry and Biochemistry, University of California-Los Angeles (UCLA), Los Angeles, CA 90095-1569, USA. The California NanoSystems Institute (CNSI), UCLA, Los Angeles, CA 90095, USA. Department of Materials Science and Engineering, UCLA, Los Angeles, CA 90095, USA.
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13
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Qi R, Jin Y, Cheng X, Fan B, Sun T, Peng S, Li H. Crystallization-Driven Self-Assembly of Rod-Coil-Rod Pseudopolyrotaxanes into Spherical Micelles, Nanorods, and Nanorings in Aqueous Solutions. Macromol Rapid Commun 2015; 36:1402-8. [PMID: 25990437 DOI: 10.1002/marc.201500129] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 04/02/2015] [Indexed: 11/12/2022]
Abstract
A novel rod-containing block copolymer is constructed by supramacromolecular self-assembly of α-cyclodextrin and a triblock copolymer with methoxy polyethylene glycol as the flanking chains and the midterm block alternately connected by 2,2-dimethylolbutyric acid and isophorone diisocyanate. The assembled rod-containing block copolymer shows an exciting phenomenon of concentration- and pH-dependent morphological switching of well-defined nanostructures. In the solutions at pH 9.2, spherical micelles, rod-like micelles, and hydrogel are observed successively with an increase of the concentration. Notably, the rod-like micelles are composed of spherical segments due to the combination of the crystalline cores of the spherical micelles. In addition, 1D nanostructures with different curvatures from linear rod-like micelles (pH 9.2) to ring-shaped micelles (pH 7.5) can be obtained by controlling the pH values of the assembled systems.
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Affiliation(s)
- Rui Qi
- Center of Polymer Science and Technology, Chengdu Institute of Organic Chemistry, Chinese Academy of Science, Chengdu, 610041, China.,University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
| | - Yong Jin
- National Engineering Laboratory for Clean Technology of Leather, Manufacture, Sichuan University, Chengdu, 610065, China.,Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China
| | - Xinfeng Cheng
- Center of Polymer Science and Technology, Chengdu Institute of Organic Chemistry, Chinese Academy of Science, Chengdu, 610041, China.,University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
| | - Baozhu Fan
- Center of Polymer Science and Technology, Chengdu Institute of Organic Chemistry, Chinese Academy of Science, Chengdu, 610041, China.,University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
| | - Tongbing Sun
- Center of Polymer Science and Technology, Chengdu Institute of Organic Chemistry, Chinese Academy of Science, Chengdu, 610041, China.,University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
| | - Shaojun Peng
- Center of Polymer Science and Technology, Chengdu Institute of Organic Chemistry, Chinese Academy of Science, Chengdu, 610041, China.,University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, China
| | - Hanping Li
- National Engineering Laboratory for Clean Technology of Leather, Manufacture, Sichuan University, Chengdu, 610065, China.,Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China
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14
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Tyagi M, Kartha KPR. Synthesis of glycotriazololipids and observations on their self-assembly properties. Carbohydr Res 2015; 413:85-92. [PMID: 26114887 DOI: 10.1016/j.carres.2015.04.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 03/30/2015] [Accepted: 04/08/2015] [Indexed: 11/28/2022]
Abstract
Various carbohydrate-anchored triazole-linked lipids prepared by solvent-free mechanochemical azide-alkyne click reaction, on analysis by TEM, have been found to spontaneously self-assemble in solvents leading to structures of interesting physicochemical attributes. Interestingly, analogous compounds based on different sugars (e.g., d-glucose, and d-galactose, as also d-lactose) assemble in patterns distinctly different from each other thus reiterating the fact that the structure of the sugar as well as that of the lipid are important factors that determine the size and shape of the supramolecular assembly formed. Besides, the molecular self-assembly was also found to be solvent-as well as temperature-dependent.
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Affiliation(s)
- Mohit Tyagi
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Punjab, India
| | - K P Ravindranathan Kartha
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Punjab, India.
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15
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Cianga L, Bendrea AD, Fifere N, Nita LE, Doroftei F, Ag D, Seleci M, Timur S, Cianga I. Fluorescent micellar nanoparticles by self-assembly of amphiphilic, nonionic and water self-dispersible polythiophenes with “hairy rod” architecture. RSC Adv 2014. [DOI: 10.1039/c4ra10734a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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16
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Costa T, Marques AT, Seixas de Melo JS, Thomas AW, Garner LE, Scherf U, Bazan GC, Burrows HD. Self-assembly of poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl} with oppositely charged phenylenevinylene oligoelectrolytes. J Phys Chem B 2014; 118:613-23. [PMID: 24359025 DOI: 10.1021/jp409577y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The interaction of the water-soluble conjugated polyelectrolyte (CPE) poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl} (PBS-PFP) (degree of polymerization, DP, ∼3-6) with various concentrations of a homologous series of oppositely charged amphiphilic phenylenevinylene oligomers was investigated in water:dioxane mixtures and in aqueous micellar solutions of the non-ionic surfactant n-dodecylpentaoxyethylene glycol ether. The excellent spectral overlap between the CPE fluorescence and the conjugated oligoelectrolyte (COE) absorption indicates that energy transfer between these is a highly favored process, and can be tuned by changing the COE chain length. This is supported by time-resolved fluorescence data. The overall results provide support for different types of self-assembly, which are sensitive to the solvent environment and to the size of the phenylenevinylene oligoelectrolyte chain. It is suggested that large aggregates are formed in water:dioxane mixtures, while decorated core-shell structures are present in the surfactant solutions.
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Affiliation(s)
- Telma Costa
- Centro de Química de Coimbra, Department of Chemistry, University of Coimbra , 3004-535 Coimbra, Portugal
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