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Imani KBC, Dodda JM, Yoon J, Torres FG, Imran AB, Deen GR, Al‐Ansari R. Seamless Integration of Conducting Hydrogels in Daily Life: From Preparation to Wearable Application. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306784. [PMID: 38240470 PMCID: PMC10987148 DOI: 10.1002/advs.202306784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/12/2023] [Indexed: 04/04/2024]
Abstract
Conductive hydrogels (CHs) have received significant attention for use in wearable devices because they retain their softness and flexibility while maintaining high conductivity. CHs are well suited for applications in skin-contact electronics and biomedical devices owing to their high biocompatibility and conformality. Although highly conductive hydrogels for smart wearable devices are extensively researched, a detailed summary of the outstanding results of CHs is required for a comprehensive understanding. In this review, the recent progress in the preparation and fabrication of CHs is summarized for smart wearable devices. Improvements in the mechanical, electrical, and functional properties of high-performance wearable devices are also discussed. Furthermore, recent examples of innovative and highly functional devices based on CHs that can be seamlessly integrated into daily lives are reviewed.
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Affiliation(s)
- Kusuma Betha Cahaya Imani
- Graduate Department of Chemical MaterialsInstitute for Plastic Information and Energy MaterialsSustainable Utilization of Photovoltaic Energy Research CenterPusan National UniversityBusan46241Republic of Korea
| | - Jagan Mohan Dodda
- New Technologies – Research Centre (NTC)University of West Bohemia, Univerzitní 8Pilsen301 00Czech Republic
| | - Jinhwan Yoon
- Graduate Department of Chemical MaterialsInstitute for Plastic Information and Energy MaterialsSustainable Utilization of Photovoltaic Energy Research CenterPusan National UniversityBusan46241Republic of Korea
| | - Fernando G. Torres
- Department of Mechanical EngineeringPontificia Universidad Catolica del Peru. Av. Universitaria 1801Lima15088Peru
| | - Abu Bin Imran
- Department of ChemistryBangladesh University of Engineering and TechnologyDhaka1000Bangladesh
| | - G. Roshan Deen
- Materials for Medicine Research GroupSchool of MedicineThe Royal College of Surgeons in Ireland (RCSI)Medical University of BahrainBusaiteen15503Kingdom of Bahrain
| | - Renad Al‐Ansari
- Materials for Medicine Research GroupSchool of MedicineThe Royal College of Surgeons in Ireland (RCSI)Medical University of BahrainBusaiteen15503Kingdom of Bahrain
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Rahimnejad M, Jahangiri S, Zirak Hassan Kiadeh S, Rezvaninejad S, Ahmadi Z, Ahmadi S, Safarkhani M, Rabiee N. Stimuli-responsive biomaterials: smart avenue toward 4D bioprinting. Crit Rev Biotechnol 2023:1-32. [PMID: 37442771 DOI: 10.1080/07388551.2023.2213398] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 02/24/2023] [Accepted: 03/20/2023] [Indexed: 07/15/2023]
Abstract
3D bioprinting is an advanced technology combining cells and bioactive molecules within a single bioscaffold; however, this scaffold cannot change, modify or grow in response to a dynamic implemented environment. Lately, a new era of smart polymers and hydrogels has emerged, which can add another dimension, e.g., time to 3D bioprinting, to address some of the current approaches' limitations. This concept is indicated as 4D bioprinting. This approach may assist in fabricating tissue-like structures with a configuration and function that mimic the natural tissue. These scaffolds can change and reform as the tissue are transformed with the potential of specific drug or biomolecules released for various biomedical applications, such as biosensing, wound healing, soft robotics, drug delivery, and tissue engineering, though 4D bioprinting is still in its early stages and more works are required to advance it. In this review article, the critical challenge in the field of 4D bioprinting and transformations from 3D bioprinting to 4D phases is reviewed. Also, the mechanistic aspects from the chemistry and material science point of view are discussed too.
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Affiliation(s)
- Maedeh Rahimnejad
- Biomedical Engineering Institute, School of Medicine, Université de Montréal, Montréal, Canada
- Research Centre, Centre Hospitalier de L'Université de Montréal (CRCHUM), Montréal, Canada
| | - Sepideh Jahangiri
- Research Centre, Centre Hospitalier de L'Université de Montréal (CRCHUM), Montréal, Canada
- Department of Biomedical Sciences, Université de Montréal, Montréal, Canada
| | | | | | - Zarrin Ahmadi
- School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, Australia
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia
| | - Sepideh Ahmadi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Moein Safarkhani
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Navid Rabiee
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, Australia
- School of Engineering, Macquarie University, Sydney, Australia
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3
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Xing Y, Zeng B, Yang W. Light responsive hydrogels for controlled drug delivery. Front Bioeng Biotechnol 2022; 10:1075670. [PMID: 36588951 PMCID: PMC9800804 DOI: 10.3389/fbioe.2022.1075670] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
Light is an easy acquired, effective and non-invasive external stimulus with great flexibility and focusability. Thus, light responsive hydrogels are of particular interests to researchers in developing accurate and controlled drug delivery systems. Light responsive hydrogels are obtained by incorporating photosensitive moieties into their polymeric structures. Drug release can be realized through three major mechanisms: photoisomerization, photochemical reaction and photothermal reaction. Recent advances in material science have resulted in great development of photosensitizers, such as rare metal nanostructures and black phosphorus nanoparticles, in order to respond to a variety of light sources. Hydrogels incorporated with photosensitizers are crucial for clinical applications, and the use of ultraviolet and near-infrared light as well as up-conversion nanoparticles has greatly increased the therapeutic effects. Existing light responsive drug delivery systems have been utilized in delivering drugs, proteins and genes for chemotherapy, immunotherapy, photodynamic therapy, gene therapy, wound healing and other applications. Principles associated with site-specific targeting, metabolism, and toxicity are used to optimize efficacy and safety, and to improve patient compliance and convenience. In view of the importance of this field, we review current development, challenges and future perspectives of light responsive hydrogels for controlled drug delivery.
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Tan L, Lee H, Fang L, Cappelleri DJ. A Power Compensation Strategy for Achieving Homogeneous Microstructures for 4D Printing Shape-Adaptive PNIPAM Hydrogels: Out-of-Plane Variations. Gels 2022; 8:gels8120828. [PMID: 36547351 PMCID: PMC9778363 DOI: 10.3390/gels8120828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 11/29/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
In the last decade, 3D printing has attracted significant attention and has resulted in benefits to many research areas. Advances in 3D printing with smart materials at the microscale, such as hydrogels and liquid crystalline polymers, have enabled 4D printing and various applications in microrobots, micro-actuators, and tissue engineering. However, the material absorption of the laser power and the aberrations of the laser light spot will introduce a decay in the polymerization degree along the height direction, and the solution to this problem has not been reported yet. In this paper, a compensation strategy for the laser power is proposed to achieve homogeneous and high aspect ratio hydrogel structures at the microscale along the out-of-plane direction. Linear approximations for the power decay curve are adopted for height steps, discretizing the final high aspect ratio structures. The strategy is achieved experimentally with hydrogel structures fabricated by two-photon polymerization. Moreover, characterizations have been conducted to verify the homogeneity of the printed microstructures. Finally, the saturation of material property is investigated by an indirect 3D deformation method. The proposed strategy is proved to be effective and can be explored for other hydrogel materials showing significant deformation. Furthermore, the strategy for out-of-plane variations provides a critical technique to achieve 4D-printed homogeneous shape-adaptive hydrogels for further applications.
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Affiliation(s)
- Liyuan Tan
- School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Hyunjin Lee
- Weldon School of Biomedical Engineering, West Lafayette, IN 47907, USA
| | - Li Fang
- Weldon School of Biomedical Engineering, West Lafayette, IN 47907, USA
| | - David J. Cappelleri
- School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA
- Weldon School of Biomedical Engineering, West Lafayette, IN 47907, USA
- Correspondence:
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Chen J, Peng Q, Peng X, Zhang H, Zeng H. Probing and Manipulating Noncovalent Interactions in Functional Polymeric Systems. Chem Rev 2022; 122:14594-14678. [PMID: 36054924 DOI: 10.1021/acs.chemrev.2c00215] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Noncovalent interactions, which usually feature tunable strength, reversibility, and environmental adaptability, have been recognized as driving forces in a variety of biological and chemical processes, contributing to the recognition between molecules, the formation of molecule clusters, and the establishment of complex structures of macromolecules. The marriage of noncovalent interactions and conventional covalent polymers offers the systems novel mechanical, physicochemical, and biological properties, which are highly dependent on the binding mechanisms of the noncovalent interactions that can be illuminated via quantification. This review systematically discusses the nanomechanical characterization of typical noncovalent interactions in polymeric systems, mainly through direct force measurements at microscopic, nanoscopic, and molecular levels, which provide quantitative information (e.g., ranges, strengths, and dynamics) on the binding behaviors. The fundamental understandings of intermolecular and interfacial interactions are then correlated to the macroscopic performances of a series of noncovalently bonded polymers, whose functions (e.g., stimuli-responsiveness, self-healing capacity, universal adhesiveness) can be customized through the manipulation of the noncovalent interactions, providing insights into the rational design of advanced materials with applications in biomedical, energy, environmental, and other engineering fields.
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Affiliation(s)
- Jingsi Chen
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Qiongyao Peng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Xuwen Peng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Hao Zhang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
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Li Z, Zhou Y, Li T, Zhang J, Tian H. Stimuli‐responsive hydrogels: Fabrication and biomedical applications. VIEW 2022. [DOI: 10.1002/viw.20200112] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Ziyuan Li
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center School of Chemistry and Molecular Engineering East China University of Science & Technology Shanghai China
| | - Yanzi Zhou
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center School of Chemistry and Molecular Engineering East China University of Science & Technology Shanghai China
| | - Tianyue Li
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center School of Chemistry and Molecular Engineering East China University of Science & Technology Shanghai China
| | - Junji Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center School of Chemistry and Molecular Engineering East China University of Science & Technology Shanghai China
| | - He Tian
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center School of Chemistry and Molecular Engineering East China University of Science & Technology Shanghai China
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7
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Ma Q, Xu J. Green microfluidics in microchemical engineering for carbon neutrality. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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8
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Gao Y, Ma Q, Cao J, Wang Y, Yang X, Xu Q, Liang Q, Sun Y. Recent advances in microfluidic-aided chitosan-based multifunctional materials for biomedical applications. Int J Pharm 2021; 600:120465. [PMID: 33711469 DOI: 10.1016/j.ijpharm.2021.120465] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/27/2021] [Accepted: 03/04/2021] [Indexed: 12/17/2022]
Abstract
Chitosan-based biomaterials has shown great advantages in a broad range of applications, including drug delivery, clinical diagnosis, cell culture and tissue engineering. However, due to the lack of control over the fabrication processes by conventional techniques, the wide application of chitosan-based biomaterials has been hampered. Recently, microfluidics has been demonstrated as one of the most promising platforms to fabricate high-performance chitosan-based multifunctional materials with monodisperse size distribution and accurately controlled morphology and microstructures, which show great promising for biomedical applications. Here, we review recent progress of the fabrication of chitosan-based biomaterials with different structures and integrated functions by microfluidic technology. A comprehensive and in-depth depiction of critical microfluidic formation mechanism and process of various chitosan-based materials are first interpreted, with particular descriptions about the microfluidic-mediated control over the morphology and microstructures. Afterwards, recently emerging representative applications of chitosan-based multifunctional materials in various fields, are systematically summarized. Finally, the conclusions and perspectives on further advancing the microfluidic-aided chitosan-based multifunctional materials toward potential and versatile development for fundamental researches and biomedicine are proposed.
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Affiliation(s)
- Yang Gao
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Qingming Ma
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China.
| | - Jie Cao
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Yiwen Wang
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Xin Yang
- Hangzhou Huadong Medicine Group Biotechnology Institute Company, Hangzhou, China
| | - Qiulong Xu
- Jiangsu Seven Continent Institute of Green Technology, Suzhou, China
| | - Qing Liang
- The Affiliated People's Hospital of Ningbo University, Ningbo, China
| | - Yong Sun
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China.
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9
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Rizzo F, Kehr NS. Recent Advances in Injectable Hydrogels for Controlled and Local Drug Delivery. Adv Healthc Mater 2021; 10:e2001341. [PMID: 33073515 DOI: 10.1002/adhm.202001341] [Citation(s) in RCA: 140] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/07/2020] [Indexed: 12/14/2022]
Abstract
Injectable hydrogels have received considerable interest in the biomedical field due to their potential applications in minimally invasive local drug delivery, more precise implantation, and site-specific drug delivery into poorly reachable tissue sites and into interface tissues, where wound healing takes a long time. Injectable hydrogels, such as in situ forming and/or shear-thinning hydrogels, can be generated using chemically and/or physically crosslinked hydrogels. Yet, for controlled and local drug delivery applications, the ideal injectable hydrogel should be able to provide controlled and sustained release of drug molecules to the target site when needed and should limit nonspecific drug molecule distribution in healthy tissues. Thus, such hydrogels should sense the environmental changes that arise in disease states and be able to release the optimal amount of drug over the necessary time period to the target region. To address this, researchers have designed stimuli-responsive injectable hydrogels. Stimuli-responsive hydrogels change their shape or volume when they sense environmental stimuli, e.g., pH, temperature, light, electrical signals, or enzymatic changes, and deliver an optimal concentration of drugs to the target site without affecting healthy tissues.
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Affiliation(s)
- Fabio Rizzo
- Istituto di Scienze e Tecnologie Chimiche “G. Natta” (SCITEC) Consiglio Nazionale delle Ricerche (CNR) via Fantoli 16/15 Milan 20138 Italy
- Organic Chemistry Institute Westfälische Wilhelms‐Universität Münster Corrensstr. 36 Münster 48149 Germany
- Center for Soft Nanoscience (SoN) Westfälische Wilhelms‐Universität Münster Busso‐Peus‐Str. 10 Münster 48149 Germany
| | - Nermin Seda Kehr
- Center for Soft Nanoscience (SoN) Westfälische Wilhelms‐Universität Münster Busso‐Peus‐Str. 10 Münster 48149 Germany
- Physikalisches Institut Westfälische Wilhelms‐Universität Münster Wilhelm‐Klemm‐Str. 10 Münster 48149 Germany
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Nanostructured Materials for Artificial Tissue Replacements. Int J Mol Sci 2020; 21:ijms21072521. [PMID: 32260477 PMCID: PMC7178059 DOI: 10.3390/ijms21072521] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/26/2020] [Accepted: 04/01/2020] [Indexed: 02/04/2023] Open
Abstract
This paper review current trends in applications of nanomaterials in tissue engineering. Nanomaterials applicable in this area can be divided into two groups: organic and inorganic. Organic nanomaterials are especially used for the preparation of highly porous scaffolds for cell cultivation and are represented by polymeric nanofibers. Inorganic nanomaterials are implemented as they stand or dispersed in matrices promoting their functional properties while preserving high level of biocompatibility. They are used in various forms (e.g., nano- particles, -tubes and -fibers)-and when forming the composites with organic matrices-are able to enhance many resulting properties (biologic, mechanical, electrical and/or antibacterial). For this reason, this contribution points especially to such type of composite nanomaterials. Basic information on classification, properties and application potential of single nanostructures, as well as complex scaffolds suitable for 3D tissues reconstruction is provided. Examples of practical usage of these structures are demonstrated on cartilage, bone, neural, cardiac and skin tissue regeneration and replacements. Nanomaterials open up new ways of treatments in almost all areas of current tissue regeneration, especially in tissue support or cell proliferation and growth. They significantly promote tissue rebuilding by direct replacement of damaged tissues.
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Ma Q, Song Y, Sun W, Cao J, Yuan H, Wang X, Sun Y, Shum HC. Cell-Inspired All-Aqueous Microfluidics: From Intracellular Liquid-Liquid Phase Separation toward Advanced Biomaterials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1903359. [PMID: 32274317 PMCID: PMC7141073 DOI: 10.1002/advs.201903359] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 01/06/2020] [Indexed: 05/24/2023]
Abstract
Living cells have evolved over billions of years to develop structural and functional complexity with numerous intracellular compartments that are formed due to liquid-liquid phase separation (LLPS). Discovery of the amazing and vital roles of cells in life has sparked tremendous efforts to investigate and replicate the intracellular LLPS. Among them, all-aqueous emulsions are a minimalistic liquid model that recapitulates the structural and functional features of membraneless organelles and protocells. Here, an emerging all-aqueous microfluidic technology derived from micrometer-scaled manipulation of LLPS is presented; the technology enables the state-of-art design of advanced biomaterials with exquisite structural proficiency and diversified biological functions. Moreover, a variety of emerging biomedical applications, including encapsulation and delivery of bioactive gradients, fabrication of artificial membraneless organelles, as well as printing and assembly of predesigned cell patterns and living tissues, are inspired by their cellular counterparts. Finally, the challenges and perspectives for further advancing the cell-inspired all-aqueous microfluidics toward a more powerful and versatile platform are discussed, particularly regarding new opportunities in multidisciplinary fundamental research and biomedical applications.
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Affiliation(s)
- Qingming Ma
- Department of PharmaceuticsSchool of PharmacyQingdao UniversityQingdao266021China
| | - Yang Song
- Wallace H Coulter Department of Biomedical EngineeringGeorgia Institute of Technology & Emory School of MedicineAtlantaGA30332USA
| | - Wentao Sun
- Center for Basic Medical ResearchTEDA International Cardiovascular HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300457China
| | - Jie Cao
- Department of PharmaceuticsSchool of PharmacyQingdao UniversityQingdao266021China
| | - Hao Yuan
- Institute of Applied MechanicsNational Taiwan UniversityTaipei10617Taiwan
| | - Xinyu Wang
- Institute of Thermal Science and TechnologyShandong UniversityJinan250061China
| | - Yong Sun
- Department of PharmaceuticsSchool of PharmacyQingdao UniversityQingdao266021China
| | - Ho Cheung Shum
- Department of Mechanical EngineeringUniversity of Hong KongPokfulam RoadHong Kong
- HKU‐Shenzhen Institute of Research and Innovation (HKU‐SIRI)Shenzhen518000China
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Custodio KS, Claudio GC, Nellas RB. Structural Dynamics of Neighboring Water Molecules of N-Isopropylacrylamide Pentamer. ACS OMEGA 2020; 5:1408-1413. [PMID: 32010812 PMCID: PMC6990436 DOI: 10.1021/acsomega.9b02898] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 12/30/2019] [Indexed: 06/10/2023]
Abstract
Poly(N-isopropylacrylamide) (PNIPAM) is a popular polymer widely used in smart hydrogel synthesis due to its thermo-responsive behavior in aqueous medium. Aqueous PNIPAM hydrogels can reversibly swell and collapse below and above their lower critical solution temperature (LCST), respectively. The present work used molecular dynamics simulations to explore the behavior of water molecules surrounding the side chains of a NIPAM pentamer in response to temperature changes (273-353 K range) near its experimental LCST (305 K). Results suggest a strong inverse correlation of temperature with water density and hydrophobic hydration character of the first coordination shell around the isopropyl groups. Integrity of the first and second coordination shells is further characterized by polygon ring analysis. Predominant occurrence of pentagons suggests clathrate-like behavior of both shells at lower temperatures. This predominance is eventually overtaken by 4-membered rings as temperature is increased beyond 303 and 293 K for the first and second coordination shells, respectively, losing their clathrate-like property. It is surmised that this temperature-dependent stability of the coordination shells is one of the important factors that controls the reversible swell-collapse mechanism of PNIPAM hydrogels.
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Affiliation(s)
| | | | - Ricky B. Nellas
- E-mail: . Phone: +63 2 981 8500 loc 3652. Fax: +63 2
920 5432
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Solazzo M, O'Brien FJ, Nicolosi V, Monaghan MG. The rationale and emergence of electroconductive biomaterial scaffolds in cardiac tissue engineering. APL Bioeng 2019; 3:041501. [PMID: 31650097 PMCID: PMC6795503 DOI: 10.1063/1.5116579] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023] Open
Abstract
The human heart possesses minimal regenerative potential, which can often lead to chronic heart failure following myocardial infarction. Despite the successes of assistive support devices and pharmacological therapies, only a whole heart transplantation can sufficiently address heart failure. Engineered scaffolds, implantable patches, and injectable hydrogels are among the most promising solutions to restore cardiac function and coax regeneration; however, current biomaterials have yet to achieve ideal tissue regeneration and adequate integration due a mismatch of material physicochemical properties. Conductive fillers such as graphene, carbon nanotubes, metallic nanoparticles, and MXenes and conjugated polymers such as polyaniline, polypyrrole, and poly(3,4-ethylendioxythiophene) can possibly achieve optimal electrical conductivities for cardiac applications with appropriate suitability for tissue engineering approaches. Many studies have focused on the use of these materials in multiple fields, with promising effects on the regeneration of electrically active biological tissues such as orthopedic, neural, and cardiac tissue. In this review, we critically discuss the role of heart electrophysiology and the rationale toward the use of electroconductive biomaterials for cardiac tissue engineering. We present the emerging applications of these smart materials to create supportive platforms and discuss the crucial role that electrical stimulation has been shown to exert in maturation of cardiac progenitor cells.
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Mohamed MA, Fallahi A, El-Sokkary AM, Salehi S, Akl MA, Jafari A, Tamayol A, Fenniri H, Khademhosseini A, Andreadis ST, Cheng C. Stimuli-responsive hydrogels for manipulation of cell microenvironment: From chemistry to biofabrication technology. Prog Polym Sci 2019; 98. [DOI: 10.1016/j.progpolymsci.2019.101147] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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Shang J, Theato P. Smart composite hydrogel with pH-, ionic strength- and temperature-induced actuation. SOFT MATTER 2018; 14:8401-8407. [PMID: 30311935 DOI: 10.1039/c8sm01728j] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A facile and versatile photo-patterning method to fabricate "smart" hydrogels with defined lateral and vertical inhomogeneity of hydrogel composition and dimensions has been developed via generating programmable composite hydrogels and bilayer hydrogels based on thermal and ionic strength-responsive poly(N-isopropylacrylamide) and pH-sensitive poly(acrylic acid) hydrogels. These hydrogels are capable of responding to triple-stimuli and inducing reversible "on" and "off" states upon external stimulation due to abrupt volume changes of the responsive hydrogel networks. Moreover, the composite and bilayer hydrogels show a reversible and repeatable direction-controllable bending behavior upon variation of temperature, ionic strength and pH, which is the result of the structural inhomogeneity and the modulation of the hydrogel solvation state in response to these changes. Importantly, different bending behaviors can be structurally programmed by controlling the patterned components, which undergo different swelling or shrinkage and further generate asymmetric internal stresses within the composite hydrogels in a specific manner. Additionally, such asymmetric internal stresses drive the shape deformations of the composite hydrogels, which are promising for potential applications in soft robots and actuators.
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Affiliation(s)
- Jiaojiao Shang
- Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, D-20146 Hamburg, Germany
| | - Patrick Theato
- Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, D-20146 Hamburg, Germany and Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesser Str. 18, D-76131 Karlsruhe, Germany and Institute for Biological Interfaces III, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany.
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Imani KBC, Kim D, Kim D, Yoon J. Temperature-Controllable Hydrogels in Double-Walled Microtube Structure Prepared by Using a Triple Channel Microfluidic System. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11553-11558. [PMID: 30170498 DOI: 10.1021/acs.langmuir.8b02687] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hydrogels in the shape of double-walled microtubes possess great potential for development into artificial human blood vessels. In this work, we have prepared temperature-responsive tubular hydrogels with selectively controllable wall diameters, by using alginate templated photopolymerization in a triple channel microfluidic device. These tubular hydrogels mimic human blood vessels because of the separate thermally active inner and passive outer walls. The different behavior of each wall leads to the expansion of the hollow center volume with increasing temperature. This temperature-based control of the hollow center volume cannot be achieved in the case of conventional hydrogel microtubes. Furthermore, through this method, the hydrogels can be modified to achieve a controllable outer diameter while maintaining the hollow center dimensions simply by changing the position of the hydrogel walls. The ability to change the layer properties of the developed system indicates that the preparation of hydrogels with various monomers is possible.
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Affiliation(s)
- Kusuma Betha Cahaya Imani
- Department of Chemistry Education, Graduate Department of Chemical Materials, and Institute for Plastic Information and Energy Materials , Pusan National University , 2 Busandaehak-ro 63 beon-gil , Geumjeong-gu, Busan 46241 , Republic of Korea
| | - Dongwan Kim
- Department of Chemistry , Dong-A University , 37 Nakdong-Daero 550 beon-gil , Saha-gu, Busan 49315 , Republic of Korea
| | - Dowan Kim
- Department of Chemistry Education, Graduate Department of Chemical Materials, and Institute for Plastic Information and Energy Materials , Pusan National University , 2 Busandaehak-ro 63 beon-gil , Geumjeong-gu, Busan 46241 , Republic of Korea
| | - Jinhwan Yoon
- Department of Chemistry Education, Graduate Department of Chemical Materials, and Institute for Plastic Information and Energy Materials , Pusan National University , 2 Busandaehak-ro 63 beon-gil , Geumjeong-gu, Busan 46241 , Republic of Korea
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17
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Hasan A, Morshed M, Memic A, Hassan S, Webster TJ, Marei HES. Nanoparticles in tissue engineering: applications, challenges and prospects. Int J Nanomedicine 2018; 13:5637-5655. [PMID: 30288038 PMCID: PMC6161712 DOI: 10.2147/ijn.s153758] [Citation(s) in RCA: 186] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Tissue engineering (TE) is an interdisciplinary field integrating engineering, material science and medical biology that aims to develop biological substitutes to repair, replace, retain, or enhance tissue and organ-level functions. Current TE methods face obstacles including a lack of appropriate biomaterials, ineffective cell growth and a lack of techniques for capturing appropriate physiological architectures as well as unstable and insufficient production of growth factors to stimulate cell communication and proper response. In addition, the inability to control cellular functions and their various properties (biological, mechanical, electrochemical and others) and issues of biomolecular detection and biosensors, all add to the current limitations in this field. Nanoparticles are at the forefront of nanotechnology and their distinctive size-dependent properties have shown promise in overcoming many of the obstacles faced by TE today. Despite tremendous progress in the use of nanoparticles over the last 2 decades, the full potential of the applications of nanoparticles in solving TE problems has yet to be realized. This review presents an overview of the diverse applications of various types of nanoparticles in TE applications and challenges that need to be overcome for nanotechnology to reach its full potential.
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Affiliation(s)
- Anwarul Hasan
- Department of Mechanical and Industrial Engineering, Qatar University, Doha, Qatar,
| | - Mahboob Morshed
- School of Life Sciences, Independent University, Bangladesh (IUB), Dhaka, Bangladesh
| | - Adnan Memic
- Center of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Shabir Hassan
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA
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18
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Chen T, Hou K, Ren Q, Chen G, Wei P, Zhu M. Nanoparticle-Polymer Synergies in Nanocomposite Hydrogels: From Design to Application. Macromol Rapid Commun 2018; 39:e1800337. [DOI: 10.1002/marc.201800337] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/10/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Tao Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Materials Science and Engineering; Donghua University; 2999 North Renmin Road Shanghai 201620 P.R. China
| | - Kai Hou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Materials Science and Engineering; Donghua University; 2999 North Renmin Road Shanghai 201620 P.R. China
| | - Qianyi Ren
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Materials Science and Engineering; Donghua University; 2999 North Renmin Road Shanghai 201620 P.R. China
| | - Guoyin Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Materials Science and Engineering; Donghua University; 2999 North Renmin Road Shanghai 201620 P.R. China
| | - Peiling Wei
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Materials Science and Engineering; Donghua University; 2999 North Renmin Road Shanghai 201620 P.R. China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; College of Materials Science and Engineering; Donghua University; 2999 North Renmin Road Shanghai 201620 P.R. China
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19
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Microfluidic fabrication of highly stretchable and fast electro-responsive graphene oxide/polyacrylamide/alginate hydrogel fibers. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.04.019] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Kim D, Jo A, Imani KBC, Kim D, Chung JW, Yoon J. Microfluidic Fabrication of Multistimuli-Responsive Tubular Hydrogels for Cellular Scaffolds. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:4351-4359. [PMID: 29553747 DOI: 10.1021/acs.langmuir.8b00453] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Stimuli-responsive hydrogel microfibers and microtubes are in great demand for biomedical applications due to their similarity to the native extracellular matrix. In this study, we prepared pH- and temperature-responsive hydrogel microfibers and microtubes using a microfluidic device through alginate-templated photopolymerization. Hydrogel monomer solutions containing N-isopropylacrylamide (NIPAm) and sodium acrylate (SA) or allyl amine (AA) were irradiated with UV light to invoke in situ photopolymerization. A repulsive force between the ionized SA or AA groups caused by protonation/deprotonation of the acrylate or amine groups, respectively, led to changes in the diameters and wall thicknesses of the fibers and/or tubes depending on the pH of the medium. Poly(NIPAm) is a well-known thermally responsive polymer wherein the NIPAm-based copolymer microfibers exhibited a thermal behavior close to the lower critical solution temperature. We have demonstrated that these multistimuli-responsive volume changes are fully reversible and repeatable. Furthermore, the positively charged microfibers were shown to exhibit cell adhesion, and the number of cells attached to the microfibers could be further increased by supplying nutrients, presenting the possibility of their application in tissue engineering and other biomedical fields.
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Affiliation(s)
| | | | - Kusuma Betha Cahaya Imani
- Department of Chemistry Education, Graduate Department of Chemical Materials, and Institute for Plastic Information and Energy Materials , Pusan National University , 2 Busandaehak-ro 63 beon-gil , Geumjeong-gu, Busan , 46241 , Republic of Korea
| | - Dowan Kim
- Department of Chemistry Education, Graduate Department of Chemical Materials, and Institute for Plastic Information and Energy Materials , Pusan National University , 2 Busandaehak-ro 63 beon-gil , Geumjeong-gu, Busan , 46241 , Republic of Korea
| | | | - Jinhwan Yoon
- Department of Chemistry Education, Graduate Department of Chemical Materials, and Institute for Plastic Information and Energy Materials , Pusan National University , 2 Busandaehak-ro 63 beon-gil , Geumjeong-gu, Busan , 46241 , Republic of Korea
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21
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Liang J, Dong X, Wei C, Ma G, Liu T, Kong D, Lv F. A visible and controllable porphyrin-poly(ethylene glycol)/α-cyclodextrin hydrogel nanocomposites system for photo response. Carbohydr Polym 2017; 175:440-449. [DOI: 10.1016/j.carbpol.2017.08.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 08/04/2017] [Accepted: 08/04/2017] [Indexed: 02/08/2023]
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22
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Huang G, Li F, Zhao X, Ma Y, Li Y, Lin M, Jin G, Lu TJ, Genin GM, Xu F. Functional and Biomimetic Materials for Engineering of the Three-Dimensional Cell Microenvironment. Chem Rev 2017; 117:12764-12850. [PMID: 28991456 PMCID: PMC6494624 DOI: 10.1021/acs.chemrev.7b00094] [Citation(s) in RCA: 457] [Impact Index Per Article: 65.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The cell microenvironment has emerged as a key determinant of cell behavior and function in development, physiology, and pathophysiology. The extracellular matrix (ECM) within the cell microenvironment serves not only as a structural foundation for cells but also as a source of three-dimensional (3D) biochemical and biophysical cues that trigger and regulate cell behaviors. Increasing evidence suggests that the 3D character of the microenvironment is required for development of many critical cell responses observed in vivo, fueling a surge in the development of functional and biomimetic materials for engineering the 3D cell microenvironment. Progress in the design of such materials has improved control of cell behaviors in 3D and advanced the fields of tissue regeneration, in vitro tissue models, large-scale cell differentiation, immunotherapy, and gene therapy. However, the field is still in its infancy, and discoveries about the nature of cell-microenvironment interactions continue to overturn much early progress in the field. Key challenges continue to be dissecting the roles of chemistry, structure, mechanics, and electrophysiology in the cell microenvironment, and understanding and harnessing the roles of periodicity and drift in these factors. This review encapsulates where recent advances appear to leave the ever-shifting state of the art, and it highlights areas in which substantial potential and uncertainty remain.
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Affiliation(s)
- Guoyou Huang
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Fei Li
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- Department of Chemistry, School of Science,
Xi’an Jiaotong University, Xi’an 710049, People’s Republic
of China
| | - Xin Zhao
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- Interdisciplinary Division of Biomedical
Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong,
People’s Republic of China
| | - Yufei Ma
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Yuhui Li
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Min Lin
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Guorui Jin
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
| | - Tian Jian Lu
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- MOE Key Laboratory for Multifunctional Materials
and Structures, Xi’an Jiaotong University, Xi’an 710049,
People’s Republic of China
| | - Guy M. Genin
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
- Department of Mechanical Engineering &
Materials Science, Washington University in St. Louis, St. Louis 63130, MO,
USA
- NSF Science and Technology Center for
Engineering MechanoBiology, Washington University in St. Louis, St. Louis 63130,
MO, USA
| | - Feng Xu
- MOE Key Laboratory of Biomedical Information
Engineering, School of Life Science and Technology, Xi’an Jiaotong
University, Xi’an 710049, People’s Republic of China
- Bioinspired Engineering and Biomechanics Center
(BEBC), Xi’an Jiaotong University, Xi’an 710049, People’s
Republic of China
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23
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Hwang MY, Kim SG, Lee HS, Muller SJ. Generation and characterization of monodisperse deformable alginate and pNIPAM microparticles with a wide range of shear moduli. SOFT MATTER 2017; 13:5785-5794. [PMID: 28766673 DOI: 10.1039/c7sm01079f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Monodisperse particles of varying size, shape, and deformability were produced using two microfluidic strategies. For both strategies, monodisperse emulsion droplets of a crosslinkable solution were generated via flow-focusing. Subsequently, droplets were crosslinked either on chip or in an external bath. On-chip gelation resulted in spherical particles; varying the degree of crosslinking varied the deformability systematically. The optimized flow-focusing device design separated the production of monodisperse aqueous alginate droplets and the on-chip introduction of crosslinking ions. Two features were then adapted to target softer particles: the dispersed phase design and the polymer choice. The alternative design used a sheathed dispersed phase, with the polymer solution surrounding an unreactive viscous core, which generated alginate particles with a softer core. Poly(N-isopropylacrylamide) (pNIPAM) allowed access to a broad range of moduli. The resulting spherical particles were characterized using capillary micromechanics to determine the shear (G) and compressive (K) moduli. Particles with G = 0.013 kPa to 26 kPa and K = 0.221 kPa to 34.9 kPa were obtained; the softest particles are an order of magnitude softer than those previously reported. The second approach, based on earlier work by Hu et al., produced axisymmetric, non-spherical particles with fore-aft asymmetry. Alginate drops were again formed in a flow-focusing device but were crosslinked off-chip in an external gelation bath. By changing the bath viscosity, crosslinker concentration, and outlet height, the falling droplets deformed differently during gelation, resulting in a variety of shapes, such as teardrop, mushroom, and bowl shapes.
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Affiliation(s)
- Margaret Y Hwang
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720, USA.
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24
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Hou K, Li Y, Liu Y, Zhang R, Hsiao BS, Zhu M. Continuous fabrication of cellulose nanocrystal/poly(ethylene glycol) diacrylate hydrogel fiber from nanocomposite dispersion: Rheology, preparation and characterization. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.06.034] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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25
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Electrically-responsive core-shell hybrid microfibers for controlled drug release and cell culture. Acta Biomater 2017; 55:434-442. [PMID: 28392307 DOI: 10.1016/j.actbio.2017.04.005] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 03/28/2017] [Accepted: 04/05/2017] [Indexed: 11/23/2022]
Abstract
It is an active research field to develop fiber-shaped smart materials for biomedical applications. Here we report the development of the multifunctional core-shell hybrid microfibers with excellent mechanical and electrical performance as a new smart biomaterial. The microfibers were synthesized using a combination of co-axial spinning with a microfluidic device and subsequent dip-coating, containing a hydrogel core of bacterial cellulose (BC) and a conductive polymer shell layer of poly(3,4-ethylenedioxythiophene) (PEDOT). The hybrid microfibers were featured with a well-controlled microscopic morphology, exhibiting enhanced mechanic properties. A model drug, diclofenac sodium, can be loaded in the core layer of the microfibers in situ during the process of synthesis. Our experiments suggested that the releasing behaviors of the drug molecules from the microfibers were enhanced by external electrical stimulation. Interestingly, we demonstrated an excellent biocompatibility and electroactivity of the hybrid microfibers for PC12 cell culture, thus promising a flexible template for the reconstruction of electrically-responsive tissues mimicking muscle fibers or nerve networks. STATEMENT OF SIGNIFICANCE Fiber-shaped biomaterials are useful in creating various functional objects from one dimensional to three-dimensional. The fabrication of microfibers with integrated physicochemical properties and bio-performance has drawn an increasing attention on researchers from chemical to biomedical. This study combined biocompatible bacterial cellulose with electroconductive poly(3,4-ethylenedioxythiophene) and further reduced them to a highly electroactive BC/PEDOT core-shell microfiber electrode for electrochemical actuator design. The result showed that the microfibers were well fabricated and the release of drugs from the microfibers was enhanced and could be controlled under electrical stimulation externally. Considering the excellent biocompatibility and electroactive toward PC12 cells, these microfibers may find use as templates for the reconstruction of fiber-shaped functional tissues that mimic muscle fibers, blood vessels or nerve networks in vivo.
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26
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Cheng J, Shan G, Pan P. Triple Stimuli-Responsive N-Isopropylacrylamide Copolymer toward Metal Ion Recognition and Adsorption via a Thermally Induced Sol–Gel Transition. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b03626] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jinjin Cheng
- State Key Laboratory of Chemical
Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Guorong Shan
- State Key Laboratory of Chemical
Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Pengju Pan
- State Key Laboratory of Chemical
Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
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27
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Liu Y, Zhang K, Ma J, Vancso GJ. Thermoresponsive Semi-IPN Hydrogel Microfibers from Continuous Fluidic Processing with High Elasticity and Fast Actuation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:901-908. [PMID: 28026935 DOI: 10.1021/acsami.6b13097] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Hydrogels with rapid and strong response to external stimuli and possessing high elasticity and strength have been considered as platform materials for numerous applications, e.g., in biomaterials engineering. Thermoresponsive hydrogels based on semi-interpenetrating polymer networks (semi-IPN) featuring N-isopropylacrylamide with copolymers of poly(N-isopropylacrylamide-co-hydroxyethyl methacrylate) p(NIPAM-HEMA) chains are prepared and described. The copolymer was characterized by FTIR, NMR, and GPC. The semi-IPN structured hydrogel and its responsive properties were evaluated by dynamic mechanical measurements, SEM, DSC, equilibrium swelling ratio, and dynamic deswelling tests. The results illustrate that the semi-IPN structured hydrogels possess rapid response and high elasticity compared to conventional pNIPAM hydrogels. By using a microfluidic device with double coaxial laminar flow, we succeeded in fabricating temperature responsive ("smart") hydrogel microfibers with core-shell structures that exhibit typical diameters on the order of 100 μm. The diameter of the fibers can be tuned by changing the flow conditions. Such hydrogel fibers can be used to fabricate "smart" devices, and the core layer can be potentially loaded with cargos to incorporate biological function in the constructs. The platforms obtained by this approach hold promise as artificial "muscles", and also "smart" hydrogel carriers providing a unique biophysical and bioactive environment for regenerative medicine and tissue engineering.
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Affiliation(s)
- Yan Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University , 201620 Shanghai, P. R. China
- Materials Science and Technology of Polymers, MESA+ Institute of Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Kaihuan Zhang
- Materials Science and Technology of Polymers, MESA+ Institute of Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Jinghong Ma
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University , 201620 Shanghai, P. R. China
| | - G Julius Vancso
- Materials Science and Technology of Polymers, MESA+ Institute of Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
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28
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Cheng J, Jun Y, Qin J, Lee SH. Electrospinning versus microfluidic spinning of functional fibers for biomedical applications. Biomaterials 2017; 114:121-143. [DOI: 10.1016/j.biomaterials.2016.10.040] [Citation(s) in RCA: 190] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/29/2016] [Accepted: 10/27/2016] [Indexed: 12/31/2022]
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29
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Jalili NA, Muscarello M, Gaharwar AK. Nanoengineered thermoresponsive magnetic hydrogels for biomedical applications. Bioeng Transl Med 2016; 1:297-305. [PMID: 29313018 PMCID: PMC5689536 DOI: 10.1002/btm2.10034] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 08/18/2016] [Accepted: 08/26/2016] [Indexed: 01/03/2023] Open
Abstract
“Smart” hydrogels are part of an emerging class of biomaterials that respond to multiple external stimuli. A range of thermoresponsive magnetic hydrogels is currently being developed for on‐demand delivery of biomolecules for a range of biomedical applications, including therapeutic drug delivery, bioimaging, and regenerative engineering. In this review article, we explore different types of magnetic nanoparticles and thermoresponsive polymers used to fabricate these smart nanoengineered hydrogels. We highlight some of the emerging applications of these stimuli‐responsive hydrogels for biomedical applications. Finally, we capture the growing trend of these smart nanoengineered hydrogels and will identify promising new research directions.
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Affiliation(s)
- Nima A Jalili
- Dept. of Biomedical Engineering Texas A&M University, College Station TX 77843
| | - Madyson Muscarello
- Dept. of Biomedical Engineering Texas A&M University, College Station TX 77843
| | - Akhilesh K Gaharwar
- Dept. of Biomedical Engineering Texas A&M University, College Station TX 77843.,Dept. of Materials Science and Engineering Texas A&M University, College Station TX 77843.,Center for Remote Health Technologies and Systems, Texas A&M University, College Station TX 77843
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30
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Stoychev GV, Ionov L. Actuating Fibers: Design and Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:24281-24294. [PMID: 27571481 DOI: 10.1021/acsami.6b07374] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Actuators are devices capable of moving or controlling objects and systems by applying mechanical force on them. Among all kinds of actuators with different shapes, fibrous ones deserve particular attention. In spite of their apparent simplicity, actuating fibers allow for very complex actuation behavior. This review discusses different approaches for the design of actuating fibers, and their advantages and disadvantages. We also discuss the prospects for the design of fibers with advanced architectures and complex actuation behavior.
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Affiliation(s)
- Georgi V Stoychev
- College of Engineering, College of Family and Consumer Sciences, University of Georgia , Athens, Georgia 30602, United States
| | - Leonid Ionov
- College of Engineering, College of Family and Consumer Sciences, University of Georgia , Athens, Georgia 30602, United States
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31
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Sharifi F, Sooriyarachchi AC, Altural H, Montazami R, Rylander MN, Hashemi N. Fiber Based Approaches as Medicine Delivery Systems. ACS Biomater Sci Eng 2016; 2:1411-1431. [DOI: 10.1021/acsbiomaterials.6b00281] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Farrokh Sharifi
- Department
of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, United States
| | | | - Hayriye Altural
- Department
of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Reza Montazami
- Department
of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, United States
- Center
of Advanced Host Defense Immunobiotics and Translational Medicine, Iowa State University, Ames, Iowa 50011, United States
| | - Marissa Nichole Rylander
- Department
of Mechanical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
| | - Nastaran Hashemi
- Department
of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, United States
- Center
of Advanced Host Defense Immunobiotics and Translational Medicine, Iowa State University, Ames, Iowa 50011, United States
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32
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Wang L, Li L, Wang X, Huang D, Yang F, Shen H, Li Z, Wu D. UV-triggered thiol–disulfide exchange reaction towards tailored biodegradable hydrogels. Polym Chem 2016. [DOI: 10.1039/c5py01925g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biodegradable hydrogels were constructed by a UV-triggered thiol–disulfide exchange reaction with temporal and spatial precision.
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Affiliation(s)
- Linlin Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Lei Li
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Key Laboratory of Polymer Chemistry & Physics of Ministry of Education
- Department of Polymer Science & Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Da Huang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Hong Shen
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Zichen Li
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Key Laboratory of Polymer Chemistry & Physics of Ministry of Education
- Department of Polymer Science & Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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33
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Yang J, Zhu L, Yan X, Wei D, Qin G, Liu B, Liu S, Chen Q. Hybrid nanocomposite hydrogels with high strength and excellent self-recovery performance. RSC Adv 2016. [DOI: 10.1039/c6ra04234a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Hybrid nanocomposite hydrogels (NC gels) with physical and chemical crosslinkings exhibit improved mechanical properties and large hysteresis. Moreover, hybrid NC gels also demonstrate excellent self-recovery properties.
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Affiliation(s)
- Jia Yang
- School of Materials Science and Engineering
- Henan Polytechnic University
- Jiaozuo
- China
| | - Lin Zhu
- School of Materials Science and Engineering
- Henan Polytechnic University
- Jiaozuo
- China
| | - Xiaoqiang Yan
- School of Materials Science and Engineering
- Henan Polytechnic University
- Jiaozuo
- China
| | - Dandan Wei
- School of Materials Science and Engineering
- Henan Polytechnic University
- Jiaozuo
- China
| | - Gang Qin
- School of Materials Science and Engineering
- Henan Polytechnic University
- Jiaozuo
- China
| | - Baozhong Liu
- School of Materials Science and Engineering
- Henan Polytechnic University
- Jiaozuo
- China
| | - Shuzheng Liu
- School of Materials Science and Engineering
- Henan Polytechnic University
- Jiaozuo
- China
| | - Qiang Chen
- School of Materials Science and Engineering
- Henan Polytechnic University
- Jiaozuo
- China
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Sharifi F, Bai Z, Montazami R, Hashemi N. Mechanical and physical properties of poly(vinyl alcohol) microfibers fabricated by a microfluidic approach. RSC Adv 2016. [DOI: 10.1039/c6ra09519d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
A microfluidic platform was used to fabricate polyvinyl alcohol microfibers with various morphology and mechanical properties.
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Affiliation(s)
- Farrokh Sharifi
- Department of Mechanical Engineering
- Iowa State University
- Ames
- USA
| | - Zhenhua Bai
- Department of Mechanical Engineering
- Iowa State University
- Ames
- USA
| | - Reza Montazami
- Department of Mechanical Engineering
- Iowa State University
- Ames
- USA
- Center of Advanced Host Defense Immunobiotics and Translational Medicine
| | - Nastaran Hashemi
- Department of Mechanical Engineering
- Iowa State University
- Ames
- USA
- Center of Advanced Host Defense Immunobiotics and Translational Medicine
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35
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Lee E, Kim D, Kim H, Yoon J. Photothermally driven fast responding photo-actuators fabricated with comb-type hydrogels and magnetite nanoparticles. Sci Rep 2015; 5:15124. [PMID: 26459918 PMCID: PMC4602301 DOI: 10.1038/srep15124] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 09/16/2015] [Indexed: 11/25/2022] Open
Abstract
To overcome the slow kinetics of the volume phase transition of stimuli-responsive hydrogels as platforms for soft actuators, thermally responsive comb-type hydrogels were prepared using synthesized poly(N-isopropylacrylamide) macromonomers bearing graft chains. Fast responding light-responsive hydrogels were fabricated by combining a comb-type hydrogel matrix with photothermal magnetite nanoparticles (MNP). The MNPs dispersed in the matrix provide heat to stimulate the volume change of the hydrogel matrix by converting absorbed visible light to thermal energy. In this process, the comb-type hydrogel matrix exhibited a rapid response due to the free, mobile grafted chains. The comb-type hydrogel exhibited significantly enhanced light-induced volume shrinkage and rapid recovery. The comb-type hydrogels containing MNP were successfully used to fabricate a bilayer-type photo-actuator with fast bending motion.
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Affiliation(s)
- Eunsu Lee
- Department of Chemistry, Dong-A University, 37 Nakdong-Daero 550 Beon-gil, Saha-gu, Busan, Republic of Korea, 49315
| | - Dowan Kim
- Department of Chemistry, Dong-A University, 37 Nakdong-Daero 550 Beon-gil, Saha-gu, Busan, Republic of Korea, 49315
| | - Haneul Kim
- Department of Chemistry, Dong-A University, 37 Nakdong-Daero 550 Beon-gil, Saha-gu, Busan, Republic of Korea, 49315
| | - Jinhwan Yoon
- Department of Chemistry, Dong-A University, 37 Nakdong-Daero 550 Beon-gil, Saha-gu, Busan, Republic of Korea, 49315
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Kim H, Lee H, Seong KY, Lee E, Yang SY, Yoon J. Visible Light-Triggered On-Demand Drug Release from Hybrid Hydrogels and its Application in Transdermal Patches. Adv Healthc Mater 2015; 4:2071-2077. [PMID: 26265317 DOI: 10.1002/adhm.201500323] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 05/27/2015] [Indexed: 11/08/2022]
Abstract
On-demand release from stimuli-responsive hydrogels has received great attention due to an increasing clinical need. Here, we have prepared spherical hydrogel beads showing visible light-induced volume change at body temper-ature. By spray injection of the monomer solution using the alginate templ-ating method, hybrid beads of several hundred micrometers, consisting of temperature-responsive poly(N-isopropylacrylamide-co-vinyl-2-pyrrolidinone) hydrogel and magnetite nanoparticles (MNP), are produced. MNP dispersed in the hydrogel matrix absorbed visible light and generated heat, increasing the temperature of the matrix and resulting in shrinkage of the beads proportional to light intensity. It is demonstrated that light-induced volume change of dexamethasone-loaded hybrid beads result in on-demand and localized release of the drug by exposure to moderate visible light. As a potential application of the light-sensitive hybrid hydrogel beads, a transdermal patch is developed that incorporates drug-loaded hydrogel beads in multiple drug reservoirs, achieving enhanced release of a model drug when exposed to visible light. This platform should be applicable to on-demand, sequential, and long-term release of drugs via light exposure.
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Affiliation(s)
- Haneul Kim
- Department of Chemistry; Dong-A University; 37 Nakdong-daero 550 beon-gil Saha-gu Busan 604-714 South Korea
| | - Hyeonjin Lee
- Department of Chemistry; Dong-A University; 37 Nakdong-daero 550 beon-gil Saha-gu Busan 604-714 South Korea
| | - Keum-Yong Seong
- Department of Biomaterials Science; Life and Industry Convergence Institute; Pusan National University; Miryang Gyeongnam 627-706 South Korea
| | - Eunsu Lee
- Department of Chemistry; Dong-A University; 37 Nakdong-daero 550 beon-gil Saha-gu Busan 604-714 South Korea
| | - Seung Yun Yang
- Department of Biomaterials Science; Life and Industry Convergence Institute; Pusan National University; Miryang Gyeongnam 627-706 South Korea
| | - Jinhwan Yoon
- Department of Chemistry; Dong-A University; 37 Nakdong-daero 550 beon-gil Saha-gu Busan 604-714 South Korea
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