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Kondo S, Nishimura T, Nishina Y, Sano K. Countercation Engineering of Graphene-Oxide Nanosheets for Imparting a Thermoresponsive Ability. ACS APPLIED MATERIALS & INTERFACES 2023; 15:37837-37844. [PMID: 37486061 DOI: 10.1021/acsami.3c07820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Graphene-oxide (GO) nanosheets, which are oxidized derivatives of graphene, are regarded as promising building blocks for functional soft materials. Especially, thermoresponsive GO nanosheets have been widely employed to develop smart membranes/surfaces, hydrogel actuators, recyclable systems, and biomedical applications. However, current synthetic strategies to generate such thermoresponsive GO nanosheets have exclusively relied on the covalent or non-covalent modification of their surfaces with thermoresponsive polymers, such as poly(N-isopropylacrylamide). To impart a thermoresponsive ability to GO nanosheets themselves, we focused on the countercations of the carboxy and acidic hydroxy groups on the GO nanosheets. In this study, we established a general and reliable method to synthesize GO nanosheets with target countercations and systematically investigated their effects on thermoresponsive behaviors of GO nanosheets. As a result, we discovered that GO nanosheets with Bu4N+ countercations became thermoresponsive in water without the use of any thermoresponsive polymers, inducing a reversible sol-gel transition via their self-assembly and disassembly processes. Owing to the sol-gel transition capability, the resultant dispersion can be used as a direct writing ink for constructing a three-dimensionally designable gel architecture of the GO nanosheets. Our concept of "countercation engineering" can become a new strategy for imparting a stimuli-responsive ability to various charged nanomaterials for the development of next-generation smart materials.
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Affiliation(s)
- Shoma Kondo
- Department of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
| | - Tomoki Nishimura
- Department of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
| | - Yuta Nishina
- Research Core for Interdisciplinary Sciences, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Koki Sano
- Department of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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Jiang Z, He J, Wang X, Zhu D, Li N, Ren L, Yang G. Nanomaterial-based cell sheet technology for regenerative medicine and tissue engineering. Colloids Surf B Biointerfaces 2022; 217:112661. [PMID: 35777168 DOI: 10.1016/j.colsurfb.2022.112661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/16/2022] [Accepted: 06/23/2022] [Indexed: 10/17/2022]
Abstract
Nanomaterial-based cell sheet technology has been reported to be an effective method in regenerative medicine and tissue engineering. Here, we summarized several types of nanomaterials used to harvest cell sheets. Currently, the technology is divided into four categories according to the mechanisms: light-induced cell sheet technology, thermo-responsive cell sheet technology, magnetic-controlled cell sheet technology, and reactive oxygen species (ROS)-induced cell sheet technology. Furthermore, some studies have been conducted to show that nanomaterial-based cell sheets produce satisfying outcomes in the regeneration of bone, skeletal muscle, cardiac tissue, and tendon, as well as angiogenesis and osseointegration. Nevertheless, some shortcomings still exist, such as comprehensive preparation, unclear safety, and cell quality. Thus, future studies should aim to produce more types of nanomaterials to solve this problem.
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Affiliation(s)
- Zhiwei Jiang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Jin He
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Xueting Wang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Danji Zhu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Na Li
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Lingfei Ren
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Guoli Yang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China.
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Zhu X, Wang Z, Teng F. A review of regulated self-organizing approaches for tissue regeneration. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2021; 167:63-78. [PMID: 34293337 DOI: 10.1016/j.pbiomolbio.2021.07.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 07/06/2021] [Accepted: 07/15/2021] [Indexed: 12/13/2022]
Abstract
Tissue and organ regeneration is the dynamic process by which a population of cells rearranges into a specific form with specific functions. Traditional tissue regeneration utilizes tissue grafting, cell implantation, and structured scaffolds to achieve clinical efficacy. However, tissue grafting methods face a shortage of donor tissue, while cell implantation may involve leakage of the implanted cells without a supportive 3D matrix. Cell migration, proliferation, and differentiation in structured scaffolds may disorganize and frustrate the artificially pre-designed structures, and sometimes involve immunogenic reactions. To overcome this limitation, the self-organizing properties and innate regenerative capability of tissue/organism formation in the absence of guidance by structured scaffolds has been investigated. This review emphasizes the growing subfield of the regulated self-organizing approach for neotissue formation and describes advances in the subfield using diverse, cutting-edge, inter-disciplinarity technologies. We cohesively summarize the directed self-organization of cells in the micro-engineered cell-ECM system and 3D/4D cell printing. Mathematical modeling of cellular self-organization is also discussed for providing rational guidance to intractable problems in tissue regeneration. It is envisioned that future self-organization approaches integrating biomathematics, micro-nano engineering, and gene circuits developed from synthetic biology will continue to work in concert with self-organizing morphogenesis to enhance rational control during self-organizing in tissue and organ regeneration.
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Affiliation(s)
- Xiaolu Zhu
- College of Mechanical & Electrical Engineering, Hohai University, Changzhou, Jiangsu, 213022, China; Changzhou Key Laboratory of Digital Manufacture Technology, Hohai University, Changzhou, Jiangsu, 213022, China; Jiangsu Key Laboratory of Special Robot Technology, Hohai University, Changzhou, Jiangsu, 213022, China.
| | - Zheng Wang
- College of Mechanical & Electrical Engineering, Hohai University, Changzhou, Jiangsu, 213022, China
| | - Fang Teng
- Department of Gynaecology and Obstetrics, Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, 210004, China.
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Di Y, Wang P, Li C, Xu S, Tian Q, Wu T, Tian Y, Gao L. Design, Bioanalytical, and Biomedical Applications of Aptamer-Based Hydrogels. Front Med (Lausanne) 2020; 7:456. [PMID: 33195288 PMCID: PMC7642814 DOI: 10.3389/fmed.2020.00456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 07/09/2020] [Indexed: 01/13/2023] Open
Abstract
Aptamers are special types of single-stranded DNA generated by a process called systematic evolution of ligands by exponential enrichment (SELEX). Due to significant advances in the chemical synthesis and biotechnological production, aptamers have gained considerable attention as versatile building blocks for the next generation of soft materials. Hydrogels are high water-retainable materials with a three-dimensional (3D) polymeric network. Aptamers, as a vital element, have greatly expanded the applications of hydrogels. Due to their biocompatibility, selective binding, and molecular recognition, aptamer-based hydrogels can be utilized for bioanalytical and biomedical applications. In this review, we focus on the latest strategies of aptamer-based hydrogels in bioanalytical and biomedical applications. We begin this review with an overview of the underlying design principles for the construction of aptamer-based hydrogels. Next, we will discuss some bioanalytical and biomedical applications of aptamer-based hydrogel including biosensing, target capture and release, logic devices, gene and cancer therapy. Finally, the recent progress of aptamer-based hydrogels is discussed, along with challenges and future perspectives.
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Affiliation(s)
- Ya Di
- Department of Respiratory Medicine, The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Ping Wang
- Department of Respiratory Medicine, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Chunyan Li
- Department of Respiratory Medicine, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Shufeng Xu
- Department of Respiratory Medicine, The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Qi Tian
- Department of Respiratory Medicine, The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Tong Wu
- Department of Respiratory Medicine, The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Yaling Tian
- Department of Respiratory Medicine, The First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Liming Gao
- Department of Respiratory Medicine, The First Hospital of Qinhuangdao, Qinhuangdao, China
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Xu X, Liu Y, Fu W, Yao M, Ding Z, Xuan J, Li D, Wang S, Xia Y, Cao M. Poly(N-isopropylacrylamide)-Based Thermoresponsive Composite Hydrogels for Biomedical Applications. Polymers (Basel) 2020; 12:polym12030580. [PMID: 32150904 PMCID: PMC7182829 DOI: 10.3390/polym12030580] [Citation(s) in RCA: 146] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/10/2020] [Accepted: 02/14/2020] [Indexed: 12/11/2022] Open
Abstract
Poly(N-isopropylacrylamide) (PNIPAM)-based thermosensitive hydrogels demonstrate great potential in biomedical applications. However, they have inherent drawbacks such as low mechanical strength, limited drug loading capacity and low biodegradability. Formulating PNIPAM with other functional components to form composited hydrogels is an effective strategy to make up for these deficiencies, which can greatly benefit their practical applications. This review seeks to provide a comprehensive observation about the PNIPAM-based composite hydrogels for biomedical applications so as to guide related research. It covers the general principles from the materials choice to the hybridization strategies as well as the performance improvement by focusing on several application areas including drug delivery, tissue engineering and wound dressing. The most effective strategies include incorporation of functional inorganic nanoparticles or self-assembled structures to give composite hydrogels and linking PNIPAM with other polymer blocks of unique properties to produce copolymeric hydrogels, which can improve the properties of the hydrogels by enhancing the mechanical strength, giving higher biocompatibility and biodegradability, introducing multi-stimuli responsibility, enabling higher drug loading capacity as well as controlled release. These aspects will be of great help for promoting the development of PNIPAM-based composite materials for biomedical applications.
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Affiliation(s)
- Xiaomin Xu
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, University of Petroleum (East China), Qingdao 266580, China; (X.X.); (Y.L.); (M.Y.); (Z.D.); (J.X.); (S.W.); (Y.X.)
| | - Yang Liu
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, University of Petroleum (East China), Qingdao 266580, China; (X.X.); (Y.L.); (M.Y.); (Z.D.); (J.X.); (S.W.); (Y.X.)
| | - Wenbo Fu
- Heze Key Laboratory of Water Pollution Treatment, Heze Vocational College, Heze 274000, China;
| | - Mingyu Yao
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, University of Petroleum (East China), Qingdao 266580, China; (X.X.); (Y.L.); (M.Y.); (Z.D.); (J.X.); (S.W.); (Y.X.)
| | - Zhen Ding
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, University of Petroleum (East China), Qingdao 266580, China; (X.X.); (Y.L.); (M.Y.); (Z.D.); (J.X.); (S.W.); (Y.X.)
| | - Jiaming Xuan
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, University of Petroleum (East China), Qingdao 266580, China; (X.X.); (Y.L.); (M.Y.); (Z.D.); (J.X.); (S.W.); (Y.X.)
| | - Dongxiang Li
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;
| | - Shengjie Wang
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, University of Petroleum (East China), Qingdao 266580, China; (X.X.); (Y.L.); (M.Y.); (Z.D.); (J.X.); (S.W.); (Y.X.)
| | - Yongqing Xia
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, University of Petroleum (East China), Qingdao 266580, China; (X.X.); (Y.L.); (M.Y.); (Z.D.); (J.X.); (S.W.); (Y.X.)
| | - Meiwen Cao
- State Key Laboratory of Heavy Oil Processing and Centre for Bioengineering and Biotechnology, University of Petroleum (East China), Qingdao 266580, China; (X.X.); (Y.L.); (M.Y.); (Z.D.); (J.X.); (S.W.); (Y.X.)
- Correspondence: ; Tel./Fax: +86-532-86983455
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