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Peng K, Zheng L, Zhou T, Zhang C, Li H. Light manipulation for fabrication of hydrogels and their biological applications. Acta Biomater 2022; 137:20-43. [PMID: 34637933 DOI: 10.1016/j.actbio.2021.10.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/11/2021] [Accepted: 10/04/2021] [Indexed: 12/17/2022]
Abstract
The development of biocompatible materials with desired functions is essential for tissue engineering and biomedical applications. Hydrogels prepared from these materials represent an important class of soft matter for mimicking extracellular environments. In particular, dynamic hydrogels with responsiveness to environments are quite appealing because they can match the dynamics of biological processes. Among the external stimuli that can trigger responsive hydrogels, light is considered as a clean stimulus with high spatiotemporal resolution, complete bioorthogonality, and fine tunability regarding its wavelength and intensity. Therefore, photoresponsiveness has been broadly encoded in hydrogels for biological applications. Moreover, light can be used to initiate gelation during the fabrication of biocompatible hydrogels. Here, we present a critical review of light manipulation tools for the fabrication of hydrogels and for the regulation of physicochemical properties and functions of photoresponsive hydrogels. The materials, photo-initiated chemical reactions, and new prospects for light-induced gelation are introduced in the former part, while mechanisms to render hydrogels photoresponsive and their biological applications are discussed in the latter part. Subsequently, the challenges and potential research directions in this area are discussed, followed by a brief conclusion. STATEMENT OF SIGNIFICANCE: Hydrogels play a vital role in the field of biomaterials owing to their water retention ability and biocompatibility. However, static hydrogels cannot meet the dynamic requirements of the biomedical field. As a stimulus with high spatiotemporal resolution, light is an ideal tool for both the fabrication and operation of hydrogels. In this review, light-induced hydrogelation and photoresponsive hydrogels are discussed in detail, and new prospects and emerging biological applications are described. To inspire more research studies in this promising area, the challenges and possible solutions are also presented.
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Khan SA, Shah LA, Shah M, Jamil I. Engineering of 3D polymer network hydrogels for biomedical applications: a review. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03638-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Zhu DY, Chen XJ, Hong ZP, Zhang LY, Zhang L, Guo JW, Rong MZ, Zhang MQ. Repeatedly Intrinsic Self-Healing of Millimeter-Scale Wounds in Polymer through Rapid Volume Expansion Aided Host-Guest Interaction. ACS APPLIED MATERIALS & INTERFACES 2020; 12:22534-22542. [PMID: 32338869 DOI: 10.1021/acsami.0c03523] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Implantable and wearable materials, which are usually used in/on a biological body, are mostly needed with biomimetic self-healing function. To enable repeatable large-wound self-healing and volume/structure recovery, we verified a proof-of-concept approach in this work. We design a polymer hydrogel that combines temperature responsiveness with an intrinsic self-healing ability through host-guest orthogonal self-assembly between two types of poly(N-isopropylacrylamide) (PNIPAM) oligomers. The result is thermosensitive, capable of fast self-repair of microcracks based on reversible host-guest assembly. More importantly, when a large open wound appears, the hydrogel can first close the wound via volume swelling and then completely self-repair the damage in terms of intrinsic self-healing. Meanwhile, its original volume can be easily recovered by subsequent contraction. As demonstrated by the experimental data, such millimeter-level wound self-healing and volume recovery can be repeatedly carried out in response to the short-term cooling stimulus. With low cytotoxicity and good biocompatibility, moreover, this highly intelligent hydrogel is greatly promising for practical large-wound self-healing in wound dressing, electronic skins, wearable biosensors, and humanoid robotics, which can tolerate large-scale human motions.
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Affiliation(s)
- Dong Yu Zhu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GD HPPC Lab, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xin Jie Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhan Peng Hong
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Lan Yue Zhang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Lei Zhang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Jian Wei Guo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Min Zhi Rong
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GD HPPC Lab, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Ming Qiu Zhang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GD HPPC Lab, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
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Zhu DY, Hong ZP, Xue YM, Chen XJ, Zhang LY, Gao L, Wang YX, Yang CF, Guo JW. Injectable, remoldable hydrogels with thermoresponsiveness, self-healing and cytocompatibility constructed via orthogonal assembly of well-defined star and linear polymers. J Mater Chem B 2019. [DOI: 10.1039/c9tb00027e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Dual intelligent and multifunctional hydrogels constructed by host–guest orthogonal assembly of well-defined star and linear polymers.
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Affiliation(s)
- Dong Yu Zhu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology
- Guangzhou 510006
- People's Republic of China
| | - Zhan Peng Hong
- School of Chemical Engineering and Light Industry, Guangdong University of Technology
- Guangzhou 510006
- People's Republic of China
| | - Yan Min Xue
- School of Chemical Engineering and Light Industry, Guangdong University of Technology
- Guangzhou 510006
- People's Republic of China
| | - Xin Jie Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology
- Guangzhou 510006
- People's Republic of China
| | - Lan Yue Zhang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology
- Guangzhou 510006
- People's Republic of China
| | - Liang Gao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology
- Guangzhou 510006
- People's Republic of China
| | - Yu Xuan Wang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology
- Guangzhou 510006
- People's Republic of China
| | - Chu Fen Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology
- Guangzhou 510006
- People's Republic of China
| | - Jian Wei Guo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology
- Guangzhou 510006
- People's Republic of China
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Eslahi N, Abdorahim M, Simchi A. Smart Polymeric Hydrogels for Cartilage Tissue Engineering: A Review on the Chemistry and Biological Functions. Biomacromolecules 2016; 17:3441-3463. [PMID: 27775329 DOI: 10.1021/acs.biomac.6b01235] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Stimuli responsive hydrogels (SRHs) are attractive bioscaffolds for tissue engineering. The structural similarity of SRHs to the extracellular matrix (ECM) of many tissues offers great advantages for a minimally invasive tissue repair. Among various potential applications of SRHs, cartilage regeneration has attracted significant attention. The repair of cartilage damage is challenging in orthopedics owing to its low repair capacity. Recent advances include development of injectable hydrogels to minimize invasive surgery with nanostructured features and rapid stimuli-responsive characteristics. Nanostructured SRHs with more structural similarity to natural ECM up-regulate cell-material interactions for faster tissue repair and more controlled stimuli-response to environmental changes. This review highlights most recent advances in the development of nanostructured or smart hydrogels for cartilage tissue engineering. Different types of stimuli-responsive hydrogels are introduced and their fabrication processes through physicochemical procedures are reported. The applications and characteristics of natural and synthetic polymers used in SRHs are also reviewed with an outline on clinical considerations and challenges.
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Affiliation(s)
- Niloofar Eslahi
- Department of Textile Engineering, Science and Research Branch, Islamic Azad University , P.O. Box 14515/775, Tehran, Iran
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Abdeen AA, Lee J, Kilian KA. Capturing extracellular matrix properties in vitro: Microengineering materials to decipher cell and tissue level processes. Exp Biol Med (Maywood) 2016; 241:930-8. [PMID: 27075930 PMCID: PMC4950351 DOI: 10.1177/1535370216644532] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Rapid advances in biology have led to the establishment of new fields with tremendous translational potential including regenerative medicine and immunoengineering. One commonality to these fields is the need to extract cells for manipulation in vitro; however, results obtained in laboratory cell culture will often differ widely from observations made in vivo. To more closely emulate native cell biology in the laboratory, designer engineered environments have proved a successful methodology to decipher the properties of the extracellular matrix that govern cellular decision making. Here, we present an overview of matrix properties that affect cell behavior, strategies for recapitulating important parameters in vitro, and examples of how these properties can affect cell and tissue level processes, with emphasis on leveraging these tools for immunoengineering.
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Affiliation(s)
- Amr A Abdeen
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Junmin Lee
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Kristopher A Kilian
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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Auletta JT, LeDonne GJ, Gronborg KC, Ladd CD, Liu H, Clark WW, Meyer TY. Stimuli-Responsive Iron-Cross-Linked Hydrogels That Undergo Redox-Driven Switching between Hard and Soft States. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00142] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Jeffrey T. Auletta
- Department of Chemistry and ‡Department of Mechanical and Materials Science
Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Gregory J. LeDonne
- Department of Chemistry and ‡Department of Mechanical and Materials Science
Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Kai C. Gronborg
- Department of Chemistry and ‡Department of Mechanical and Materials Science
Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Colin D. Ladd
- Department of Chemistry and ‡Department of Mechanical and Materials Science
Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Haitao Liu
- Department of Chemistry and ‡Department of Mechanical and Materials Science
Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - William W. Clark
- Department of Chemistry and ‡Department of Mechanical and Materials Science
Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Tara Y. Meyer
- Department of Chemistry and ‡Department of Mechanical and Materials Science
Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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Amrani S, Atwal A, Variola F. Modulating the elution of antibiotics from nanospongy titanium surfaces with a pH-sensitive coating. RSC Adv 2015. [DOI: 10.1039/c5ra18296d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fraction of vancomycin eluted at 3 different pHs from bare nanospongy titanium (left) and from nanospongy titanium coated with uncross-linked (center, CH:PEG) and cross-linked (right, CH:PEG + GEN) chitosan–poly(ethylene glycol.
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Affiliation(s)
- Selya Amrani
- Department of Mechanical Engineering
- University of Ottawa
- Canada
| | - Aman Atwal
- Department of Mechanical Engineering
- University of Ottawa
- Canada
- Department of Biopharmaceutical Sciences
- University of Ottawa
| | - Fabio Variola
- Department of Mechanical Engineering
- University of Ottawa
- Canada
- Department of Physics
- University of Ottawa
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