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Shi Z, Zhang X, Wang X, Yang F, Yu Z, Ling Y, Lu H, Luan S, Tang H. Synthesis and Properties of Mono- or Diamine-Initiated Imidazolium-Based Cationic Polypeptides. Biomacromolecules 2020; 21:3468-3478. [DOI: 10.1021/acs.biomac.0c00953] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zuowen Shi
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Xu Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xiaodan Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Fangping Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Zikun Yu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Ying Ling
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Hua Lu
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Shifang Luan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Haoyu Tang
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
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He X, Fan J, Zou J, Wooley KL. Reversible photo-patterning of soft conductive materials via spatially-defined supramolecular assembly. Chem Commun (Camb) 2016; 52:8455-8. [PMID: 27305966 PMCID: PMC5043637 DOI: 10.1039/c6cc03579e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A strategy for reversible patterning of soft conductive materials is described, based upon a combination of peptide-based block copolymer hydrogelators and photo-thermally-active carbon nanotubes. This composite displays photo-responsive gelation at application-relevant timescales (<10 s), allowing for rapid and spatially-defined construction of conductive patterns (>100 S m(-1)), which, additionally, hold the capability to revert to sol upon sonication for reprocessing.
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Affiliation(s)
- Xun He
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, 3255 TAMU, College Station, TX 77842, USA.
| | - Jingwei Fan
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, 3255 TAMU, College Station, TX 77842, USA.
| | - Jiong Zou
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, 3255 TAMU, College Station, TX 77842, USA.
| | - Karen L Wooley
- Departments of Chemistry, Chemical Engineering, and Materials Science & Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, 3255 TAMU, College Station, TX 77842, USA.
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He X, Fan J, Zhang F, Li R, Pollack KA, Raymond JE, Zou J, Wooley KL. Multi-responsive Hydrogels Derived from the Self-assembly of Tethered Allyl-functionalized Racemic Oligopeptides. J Mater Chem B 2014; 2:8123-8130. [PMID: 25485113 PMCID: PMC4255538 DOI: 10.1039/c4tb00909f] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A multi-responsive triblock hydrogelator oligo(dl-allylglycine)-block-poly(ethylene glycol)-block-oligo(dl-allylglycine) (ODLAG-b-PEG-b-ODLAG) was synthesized facilely by ring-opening polymerization (ROP) of DLAG N-carboxyanhydride (NCA) with a diamino-terminated PEG as the macroinitiator. This system exhibited heat-induced sol-to-gel transitions and either sonication- or enzyme-induced gel-to-sol transitions. The β-sheeting of the oligopeptide segments was confirmed by attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and wide-angle X-ray scattering (WAXS). The β-sheets further displayed tertiary ordering into fibrillar structures that, in turn generated a porous and interconnected hydrogel matrix, as observed via transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The reversible macroscopic sol-to-gel transitions triggered by heat and gel-to-sol transitions triggered by sonication were correlated with the transformation of nanostructural morphologies, with fibrillar structures observed in gel and spherical aggregates in sol, respectively. The enzymatic breakdown of the hydrogels was also investigated. This allyl-functionalized hydrogelator can serve as a platform for the design of smart hydrogels, appropriate for expansion into biological systems as bio-functional and bio-responsive materials.
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Affiliation(s)
- Xun He
- Departments of Chemistry, Chemical Engineering, and Materials Science and Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842, USA
| | - Jingwei Fan
- Departments of Chemistry, Chemical Engineering, and Materials Science and Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842, USA
| | - Fuwu Zhang
- Departments of Chemistry, Chemical Engineering, and Materials Science and Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842, USA
| | - Richen Li
- Departments of Chemistry, Chemical Engineering, and Materials Science and Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842, USA
| | - Kevin A. Pollack
- Departments of Chemistry, Chemical Engineering, and Materials Science and Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842, USA
| | - Jeffery E. Raymond
- Departments of Chemistry, Chemical Engineering, and Materials Science and Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842, USA
| | - Jiong Zou
- Departments of Chemistry, Chemical Engineering, and Materials Science and Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842, USA
| | - Karen L. Wooley
- Departments of Chemistry, Chemical Engineering, and Materials Science and Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX 77842, USA
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