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Matin Nazar A, Mohsenian R, Rayegani A, Shadfar M, Jiao P. Skin-Contact Triboelectric Nanogenerator for Energy Harvesting and Motion Sensing: Principles, Challenges, and Perspectives. BIOSENSORS 2023; 13:872. [PMID: 37754106 PMCID: PMC10526904 DOI: 10.3390/bios13090872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/16/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023]
Abstract
Energy harvesting has become an increasingly important field of research as the demand for portable and wearable devices continues to grow. Skin-contact triboelectric nanogenerator (TENG) technology has emerged as a promising solution for energy harvesting and motion sensing. This review paper provides a detailed overview of skin-contact TENG technology, covering its principles, challenges, and perspectives. The introduction begins by defining skin-contact TENG and explaining the importance of energy harvesting and motion sensing. The principles of skin-contact TENG are explored, including the triboelectric effect and the materials used for energy harvesting. The working mechanism of skin-contact TENG is also discussed. This study then moves onto the applications of skin-contact TENG, focusing on energy harvesting for wearable devices and motion sensing for healthcare monitoring. Furthermore, the integration of skin-contact TENG technology with other technologies is discussed to highlight its versatility. The challenges in skin-contact TENG technology are then highlighted, which include sensitivity to environmental factors, such as humidity and temperature, biocompatibility and safety concerns, and durability and reliability issues. This section of the paper provides a comprehensive evaluation of the technological limitations that must be considered when designing skin-contact TENGs. In the Perspectives and Future Directions section, this review paper highlights various advancements in materials and design, as well as the potential for commercialization. Additionally, the potential impact of skin-contact TENG technology on the energy and healthcare industries is discussed.
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Affiliation(s)
- Ali Matin Nazar
- Donghai Laboratory, Zhoushan 316021, China;
- Zhejiang University-University of Illinois at Urbana-Champaign Institute, Zhejiang University, Haining 314400, China
| | - Reza Mohsenian
- College of Health and Rehabilitation Sciences, Sargent College, Boston University, Boston, MA 02215, USA;
| | - Arash Rayegani
- Centre for Infrastructure Engineering, Western Sydney University, Kingswood, NSW 2747, Australia;
| | - Mohammadamin Shadfar
- School of Medicine, Zhejiang University, 866 Yuhangtang Rd., Hangzhou 310058, China;
| | - Pengcheng Jiao
- Donghai Laboratory, Zhoushan 316021, China;
- Institute of Port, Coastal and Offshore Engineering, Ocean College, Zhejiang University, Zhoushan 316021, China
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2
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Morozova SM, López-Flores L, Gevorkian A, Zhang H, Adibnia V, Shi W, Nykypanchuk D, Statsenko TG, Walker GC, Gang O, de la Cruz MO, Kumacheva E. Colloidal Clusters and Networks Formed by Oppositely Charged Nanoparticles with Varying Stiffnesses. ACS NANO 2023; 17:15012-15024. [PMID: 37459253 DOI: 10.1021/acsnano.3c04064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Colloidal clusters and gels are ubiquitous in science and technology. Particle softness has a strong effect on interparticle interactions; however, our understanding of the role of this factor in the formation of colloidal clusters and gels is only beginning to evolve. Here, we report the results of experimental and simulation studies of the impact of particle softness on the assembly of clusters and networks from mixtures of oppositely charged polymer nanoparticles (NPs). Experiments were performed below or above the polymer glass transition temperature, at which the interaction potential and adhesive forces between the NPs were significantly varied. Hard NPs assembled in fractal clusters that subsequently organized in a kinetically arrested colloidal gel, while soft NPs formed dense precipitating aggregates, due to the NP deformation and the decreased interparticle distance. Importantly, interactions of hard and soft NPs led to the formation of discrete precipitating NP aggregates at a relatively low volume fraction of soft NPs. A phenomenological model was developed for interactions of oppositely charged NPs with varying softnesses. The experimental results were in agreement with molecular dynamics simulations based on the model. This work provides insight on interparticle interactions before, during, and after the formation of hard-hard, hard-soft, and soft-soft contacts and has impact for numerous applications of reversible colloidal gels, including their use as inks for additive manufacturing.
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Affiliation(s)
- Sofia M Morozova
- Department of Chemistry, University of Toronto, 80 Saint George street, Toronto M5S 3H6, Ontario, Canada
| | - Leticia López-Flores
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Albert Gevorkian
- Department of Chemistry, University of Toronto, 80 Saint George street, Toronto M5S 3H6, Ontario, Canada
| | - Honghu Zhang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Vahid Adibnia
- Department of Chemistry, University of Toronto, 80 Saint George street, Toronto M5S 3H6, Ontario, Canada
| | - Weiqing Shi
- Department of Chemistry, University of Toronto, 80 Saint George street, Toronto M5S 3H6, Ontario, Canada
| | - Dmytro Nykypanchuk
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Tatiana G Statsenko
- Department of Chemistry, University of Toronto, 80 Saint George street, Toronto M5S 3H6, Ontario, Canada
| | - Gilbert C Walker
- Department of Chemistry, University of Toronto, 80 Saint George street, Toronto M5S 3H6, Ontario, Canada
| | - Oleg Gang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
- Departments of Chemical Engineering and Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, United States
| | - Monica Olvera de la Cruz
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Eugenia Kumacheva
- Department of Chemistry, University of Toronto, 80 Saint George street, Toronto M5S 3H6, Ontario, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto M5S 3H6, Ontario, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto M5S 3H6, Ontario, Canada
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Kobayashi S, Sugasaki A, Yamamoto Y, Shigenoi Y, Udaka A, Yamamoto A, Tanaka M. Enrichment of Cancer Cells Based on Antibody-Free Selective Cell Adhesion. ACS Biomater Sci Eng 2022; 8:4547-4556. [PMID: 36153975 DOI: 10.1021/acsbiomaterials.2c00662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Blood-compatible and cell-adhering polymer materials are extremely useful for regenerative medicine and disease diagnosis. (Meth)acryl polymers with high hydrophilicity have been widely used in industries, and attempts to apply these polymers in the medical field are frequently reported. We focused on crosslinked polymer films prepared using bifunctional monomers, which are widely used as coating materials, and attempted to alter the cell adhesion behavior while maintaining blood compatibility by changing the chemical structure of the crosslinker. Four bifunctional monomers were studied, three of which were found to be blood-compatible polymers and to suppress platelet adhesion. The adhesion behavior of cancer cells to polymer films varied; moreover, the cancer model cells MCF-7 [EpCAM(+)] and MDA-MB-231 [EpCAM (-)], with different expression levels of epithelial cell adhesion molecule (EpCAM), showed distinct adhesion behavior for each material. We suggest that a combination of these materials has the potential to selectively capture and enrich highly metastatic cancer cells.
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Affiliation(s)
- Shingo Kobayashi
- Institute for Materials Chemistry and Engineering, Kyushu University, CE41 744 Motooka, Nishi-ku, Fukuoka819-0395, Japan
| | - Atsushi Sugasaki
- Synthetic Organic Chemistry Laboratories, FUJIFILM Corporation, 4000 Kawashiri, Yoshida-cho, Haibara-gun, Shizuoka421-0396, Japan
| | - Yosuke Yamamoto
- Synthetic Organic Chemistry Laboratories, FUJIFILM Corporation, 577 Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa258-0022, Japan
| | - Yuta Shigenoi
- Electronic Materials Research Laboratories, FUJIFILM Corporation, 4000 Kawashiri, Yoshida-cho, Haibara-gun, Shizuoka421-0396, Japan
| | - Airi Udaka
- Institute for Materials Chemistry and Engineering, Kyushu University, CE41 744 Motooka, Nishi-ku, Fukuoka819-0395, Japan
| | - Aki Yamamoto
- Institute for Materials Chemistry and Engineering, Kyushu University, CE41 744 Motooka, Nishi-ku, Fukuoka819-0395, Japan
| | - Masaru Tanaka
- Institute for Materials Chemistry and Engineering, Kyushu University, CE41 744 Motooka, Nishi-ku, Fukuoka819-0395, Japan
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Rahimi Sardo F, Rayegani A, Matin Nazar A, Balaghiinaloo M, Saberian M, Mohsan SAH, Alsharif MH, Cho HS. Recent Progress of Triboelectric Nanogenerators for Biomedical Sensors: From Design to Application. BIOSENSORS 2022; 12:697. [PMID: 36140082 PMCID: PMC9496147 DOI: 10.3390/bios12090697] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/14/2022] [Accepted: 08/22/2022] [Indexed: 12/22/2022]
Abstract
Triboelectric nanogenerators (TENG) have gained prominence in recent years, and their structural design is crucial for improvement of energy harvesting performance and sensing. Wearable biosensors can receive information about human health without the need for external charging, with energy instead provided by collection and storage modules that can be integrated into the biosensors. However, the failure to design suitable components for sensing remains a significant challenge associated with biomedical sensors. Therefore, design of TENG structures based on the human body is a considerable challenge, as biomedical sensors, such as implantable and wearable self-powered sensors, have recently advanced. Following a brief introduction of the fundamentals of triboelectric nanogenerators, we describe implantable and wearable self-powered sensors powered by triboelectric nanogenerators. Moreover, we examine the constraints limiting the practical uses of self-powered devices.
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Affiliation(s)
- Fatemeh Rahimi Sardo
- Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman 7616913439, Iran
| | - Arash Rayegani
- Department of Civil Engineering, Sharif University of Technology, Azadi Ave, Tehran 1458889694, Iran
| | | | | | | | | | - Mohammed H. Alsharif
- Department of Electrical Engineering, College of Electronics and Information Engineering, Sejong University, Seoul 05006, Korea
| | - Ho-Shin Cho
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Korea
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Guo K, Wei P, Xie Y, Huang X. Smart ultra-stable foams stabilized using cellulose nanocrystal (CNC) gels via noncovalent bonding. Chem Commun (Camb) 2022; 58:4723-4726. [PMID: 35302560 DOI: 10.1039/d2cc00289b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Smart ultra-stable foams stabilized by cellulose nanocrystal (CNC)-based gels were fabricated. The stabilization is ascribed to the dense films and three-dimensional networks at the interface and in the bulk induced by the charge shielding effect and electrostatic attraction between protonated bis(2-hydroxyethyl)oleylamine (BOA-H+) micelles and negatively charged CNC colloids. The as-prepared foam could maintain its morphology without breaking or drainage for two months, showing high stability. Outstanding CO2/N2 reversibility endows the system with on-demand control of foaming/defoaming, which is necessary in many aspects. The functionalized foam is expected to open up an opportunity for the design of intelligent oilfield chemicals and extinguishant systems.
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Affiliation(s)
- Kaidi Guo
- MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Peng Wei
- MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Yahong Xie
- MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Xueli Huang
- MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
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7
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Madbouly SA. Waterborne Polyurethane Dispersions and Thin Films: Biodegradation and Antimicrobial Behaviors. Molecules 2021; 26:961. [PMID: 33670378 PMCID: PMC7918248 DOI: 10.3390/molecules26040961] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/27/2021] [Accepted: 02/06/2021] [Indexed: 11/16/2022] Open
Abstract
Biodegradable and antimicrobial waterborne polyurethane dispersions (PUDs) and their casted solid films have recently emerged as important alternatives to their solvent-based and non-biodegradable counterparts for various applications due to their versatility, health, and environmental friendliness. The nanoscale morphology of the PUDs, dispersion stability, and the thermomechanical properties of the solid films obtained from the solvent cast process are strongly dependent on several important parameters, such as the preparation method, polyols, diisocyanates, solid content, chain extension, and temperature. The biodegradability, biocompatibility, antimicrobial properties and biomedical applications can be tailored based on the nature of the polyols, polarity, as well as structure and concentration of the internal surfactants (anionic or cationic). This review article provides an important quantitative experimental basis and structure evolution for the development and synthesis of biodegradable waterborne PUDs and their solid films, with prescribed macromolecular properties and new functions, with the aim of understanding the relationships between polymer structure, properties, and performance. The review article will also summarize the important variables that control the thermomechanical properties and biodegradation kinetics, as well as antimicrobial and biocompatibility behaviors of aqueous PUDs and their films, for certain industrial and biomedical applications.
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Affiliation(s)
- Samy A. Madbouly
- School of Engineering, Behrend College, Pennsylvania State University, Erie, PA 16563, USA; ; Tel.: +814-595-7169
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
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Feng Z, Li M, Jin X, Zheng Y, Liu J, Zhao L, Wang Y, Li H, Zuo D. Design and characterization of plasticized bacterial cellulose/waterborne polyurethane composite with antibacterial function for nasal stenting. Regen Biomater 2020; 7:597-608. [PMID: 33365145 PMCID: PMC7748449 DOI: 10.1093/rb/rbaa029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/10/2020] [Accepted: 06/18/2020] [Indexed: 12/18/2022] Open
Abstract
A nasal stent capable of preventing adhesions and inflammation is of great value in treating nasal diseases. In order to solve the problems of tissue adhesion and inflammation response, we prepared plasticized bacterial cellulose (BCG) and waterborne polyurethane (WPU) composite with antibacterial function used as a novel nasal stent. The gelation behavior of BCG could contribute to protecting the paranasal sinus mucosa; meanwhile, the WPU with improved mechanical property was aimed at supporting the narrow nasal cavity. The thickness, size and the supporting force of the nasal stent could be adjusted according to the specific conditions of the nasal. Thermogravimetric analysis, contact angle and water absorption test were applied to investigate the thermal, hydrophilic and water absorption properties of the composite materials. The composite materials loaded with poly(hexamethylene biguanide) hydrochloride maintained well antibacterial activity over 12 days. Animal experiments further revealed that the mucosal epithelium mucosae damage of BCG-WPU composite was minor compared with that of WPU. This new type of drug-loaded nasal stent can effectively address the postoperative adhesions and infections while ensuring the health of nasal mucosal, and thus has an immense clinical application prospects in treating nasal diseases.
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Affiliation(s)
- Zhaoxuan Feng
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Minglu Li
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Xing Jin
- Department of Otorhinolaryngology, Peking University Third Hospital, Beijing, China
| | - Yudong Zheng
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Junxiu Liu
- Department of Otorhinolaryngology, Peking University Third Hospital, Beijing, China
| | - Liang Zhao
- Research Center for Bioengineering and Sensing Technology, University of Science and Technology Beijing, Beijing 100083, China
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yansen Wang
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Hao Li
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Danlin Zuo
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
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9
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Dai Z, Jiang P, Lou W, Zhang P, Bao Y, Gao X, Xia J, Haryono A. Preparation of degradable vegetable oil-based waterborne polyurethane with tunable mechanical and thermal properties. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109994] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Naureen B, Haseeb ASMA, Basirun WJ, Muhamad F. Recent advances in tissue engineering scaffolds based on polyurethane and modified polyurethane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111228. [PMID: 33254956 DOI: 10.1016/j.msec.2020.111228] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 06/17/2020] [Accepted: 06/19/2020] [Indexed: 12/15/2022]
Abstract
Organ repair, regeneration, and transplantation are constantly in demand due to various acute, chronic, congenital, and infectious diseases. Apart from traditional remedies, tissue engineering (TE) is among the most effective methods for the repair of damaged tissues via merging the cells, growth factors, and scaffolds. With regards to TE scaffold fabrication technology, polyurethane (PU), a high-performance medical grade synthetic polymer and bioactive material has gained significant attention. PU possesses exclusive biocompatibility, biodegradability, and modifiable chemical, mechanical and thermal properties, owing to its unique structure-properties relationship. During the past few decades, PU TE scaffold bioactive properties have been incorporated or enhanced with biodegradable, electroactive, surface-functionalised, ayurvedic products, ceramics, glass, growth factors, metals, and natural polymers, resulting in the formation of modified polyurethanes (MPUs). This review focuses on the recent advances of PU/MPU scaffolds, especially on the biomedical applications in soft and hard tissue engineering and regenerative medicine. The scientific issues with regards to the PU/MPU scaffolds, such as biodegradation, electroactivity, surface functionalisation, and incorporation of active moieties are also highlighted along with some suggestions for future work.
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Affiliation(s)
- Bushra Naureen
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - A S M A Haseeb
- Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - W J Basirun
- Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia; Institute of Nanotechnology and catalyst (NANOCAT), University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Farina Muhamad
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Feng Z, Wang D, Zheng Y, Zhao L, Xu T, Guo Z, Irfan Hussain M, Zeng J, Lou L, Sun Y, Jiang H. A novel waterborne polyurethane with biodegradability and high flexibility for 3D printing. Biofabrication 2020; 12:035015. [PMID: 32150742 DOI: 10.1088/1758-5090/ab7de0] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Three-dimensional (3D) printing provides a new approach of fabricating implantable products because it permits a flexible manner to extrude complex and customized shapes of the tissue scaffolds. Compared with other printable biomaterials, the polyurethane elastomer has several merits, including excellent mechanical properties and good biocompatibility. However, some intrinsic behavior, especially its high melting point and slow rate of degradation, hampered its application in 3D printed tissue engineering. Herein, we developed a 3D printable amino acid modified biodegradable waterborne polyurethane (WBPU) using a water-based green chemistry process. The flexibility of this material endows better compliance with tissue during implantation and prevents high modulus transplants from scratching surrounding tissues. The histocompatibility experiments show that the WBPU induces no apparent acute rejection or inflammation in vivo. We successfully fabricated a highly flexible WBPU scaffold by deposition 3D printing technology at a low temperature (50°C ~ 70 °C), and the printed products could support the adhesion and proliferation of chondrocytes and fibroblasts. The printed blocks possessed controllable degradability due to the different amounts of hydrophilic chain extender and did not cause accumulation of acidic products. In addition, we demonstrated that our WBPU is highly applicable for implantable tissue engineering because there is no cytotoxicity during its degradation. Taken together, we envision that this printable WBPU can be used as an alternative biomaterial for tissue engineering with low temperature printing, biodegradability, and compatibility.
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Affiliation(s)
- Zhaoxuan Feng
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China. These authors contributed equally to this work
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12
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Hou Y, Jiang N, Sun D, Wang Y, Chen X, Zhu S, Zhang L. A fast UV-curable PU-PAAm hydrogel with mechanical flexibility and self-adhesion for wound healing. RSC Adv 2020; 10:4907-4915. [PMID: 35498321 PMCID: PMC9049579 DOI: 10.1039/c9ra10666a] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 01/24/2020] [Indexed: 02/05/2023] Open
Abstract
Hydrogels demonstrate superior properties that favor wound healing and have been widely used in clinical settings for wound dressing applications. However, commercial hydrogel dressings often lack flexibility/adhesiveness, and do not conform well to the irregular skin surfaces of complex wounds and/or wounds near joints. As a result, the wound is likely to be exposed to potential bacterial invasion. Herein, we designed and developed a mechanically flexible and self-adhesive polyurethane-poly(acrylamide) (PU-PAAm) hydrogel for wound healing applications. The hydrogel can be cured from a novel waterborne emulsion within 90 s under UV irradiation. The PU component within the PU-PAAm hydrogel plays a "bridging" role that accelerates the formation of an interpenetrating polymer network (IPN), which consists of a physically crosslinked PU network trapped within a chemically crosslinked PAAm network. The unique IPN structure endowes the hydrogel with superior stretchability and ductility. The hydrogen bonding formation and electrostatic interaction between the hydrogel and skin ensure strong adhesion without causing irritation to skin upon dressing removal. Animal studies further confirmed the PU-PAAm hydrogel's remarkable skin regeneration capability. This work shows our new hydrogel holds a promising prospect for treatment of complicated or challenging wounds such as burns and chronic wounds.
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Affiliation(s)
- Yi Hou
- Analytical & Testing Center, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, School of Materials Science & Engineering, Sichuan University Chengdu 610065 China
| | - Nan Jiang
- Analytical & Testing Center, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, School of Materials Science & Engineering, Sichuan University Chengdu 610065 China
| | - Dan Sun
- Advanced Composite Research Group (ACRG), School of Mechanical and Aerospace Engineering, Queens University Belfast Belfast BT9 5AH UK
| | - Yiping Wang
- Analytical & Testing Center, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, School of Materials Science & Engineering, Sichuan University Chengdu 610065 China
| | - Xianchun Chen
- Analytical & Testing Center, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, School of Materials Science & Engineering, Sichuan University Chengdu 610065 China
| | - Songsong Zhu
- Analytical & Testing Center, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, School of Materials Science & Engineering, Sichuan University Chengdu 610065 China
| | - Li Zhang
- Analytical & Testing Center, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, School of Materials Science & Engineering, Sichuan University Chengdu 610065 China
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13
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Hou Y, Song Y, Sun X, Jiang Y, He M, Li Y, Chen X, Zhang L. Multifunctional composite hydrogel bolus with combined self-healing, antibacterial and adhesive functions for radiotherapy. J Mater Chem B 2020; 8:2627-2635. [PMID: 32129372 DOI: 10.1039/c9tb02967b] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
TPU/PAAm hydrogel with excellent mechanical, adhesive, self-healing and antibacterial properties has been successfully prepared as a desirable bolus for radiotherapy.
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Affiliation(s)
- Yi Hou
- Analytical & Testing Center
- Sichuan University
- Chengdu 610065
- China
| | - Ying Song
- Department of Radiotherapy
- West China Hospital
- Sichuan University
- Chengdu
- China
| | - Xiaodong Sun
- West China School of Preclinical and Forensic Medicine
- Sichuan University
- Chengdu 610041
- China
| | - Yulin Jiang
- Analytical & Testing Center
- Sichuan University
- Chengdu 610065
- China
| | - Meiling He
- Analytical & Testing Center
- Sichuan University
- Chengdu 610065
- China
| | - Yubao Li
- Analytical & Testing Center
- Sichuan University
- Chengdu 610065
- China
| | - Xianchun Chen
- School of Materials Science & Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Li Zhang
- Analytical & Testing Center
- Sichuan University
- Chengdu 610065
- China
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14
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Ghorai SK, Maji S, Subramanian B, Maiti TK, Chattopadhyay S. Promoted Osteoconduction of Polyurethane-Urea Based 3D Nanohybrid Scaffold through Nanohydroxyapatite Adorned Hierarchical Titanium Phosphate. ACS APPLIED BIO MATERIALS 2019; 2:3907-3925. [PMID: 35021325 DOI: 10.1021/acsabm.9b00487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The lack of optimal physiological properties, bacterial colonization, and auto-osteoinduction, are the foremost issues of orthopedic implantations. In terms of bone healing, many researchers have reported the release of additional growth factors of the implanted biomaterials to accelerate the bone regeneration process. However, the additional growth factor may cause side effects such as contagion, nerve pain, and the formation of ectopic bone. Thus, the design of an osteoconductive scaffold having excellent biocompatibility, appropriate physicomechanical properties, and promoted auto osteoinductivity with antibacterial activity is greatly desired. In this study, 2D rodlike nanohydroxyapatite (nHA) adorned titanium phosphate (TP) with a flowerlike morphology was synthesized by a hydrothermal precipitation reaction. The nanohybrid material (nHA-TP) was incorporated into the synthesized polycaprolactone diol and spermine based thermoplastic polyurethane-urea (PUU) via in situ technique followed by salt leaching to fabricate the macroporous 3D polymer nanohybrid scaffold (PUU/nHA-TP). Structure explication of PUU was performed by NMR spectroscopy. The synthesized nanohybrid scaffold with 1% nHA-TP showed 67% increase of tensile strength and 18% improved modulus compared to the pristine PUU via formation of H-bonding or dative bonds between the metal and the amide linkage of the polyurethane or polyurea. In vitro study showing improved cell viability and proliferation of the seeded cell revealed the superior osteoconductivity of the nanohybrid scaffold. Most importantly, the in vivo experiments revealed a significant amount of bone regeneration in the nanohybrid scaffold implanted tibial site compared to the pristine scaffold without any toxic effect. Introduction of the minute amount of titanium phosphate within the adorned nHA promotes the osteoconductivity significantly by the capability of forming coordinate bonds of the titanium ion. Depending on the mechanical, physicochemical, in vitro characteristics, and in vivo osteoconductivity, the PUU/nHA-TP nanohybrid scaffold has great potential as an alternative biomaterial in bone tissue regeneration application.
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Affiliation(s)
- Sanjoy Kumar Ghorai
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur-721302, India
| | - Somnath Maji
- Department of Biotechnology, Indian Institute of Technology, Kharagpur-721302, India
| | | | - Tapas Kumar Maiti
- Department of Biotechnology, Indian Institute of Technology, Kharagpur-721302, India
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He Y, Wang Q, Wei Z, Xu L, Wang Z, Huang H, Jiao H. Soft Template-Directed Reactions: One-Pot Synthetic Route for Bimetallic Core-Satellite-Shell Structured Electrocatalytic Nanospheres. ChemCatChem 2018. [DOI: 10.1002/cctc.201800346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yue He
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology; School of Chemistry & Chemical Engineering; Shaanxi Normal University; P.R. China
| | - Qin Wang
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology; School of Chemistry & Chemical Engineering; Shaanxi Normal University; P.R. China
| | - Zhen Wei
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology; School of Chemistry & Chemical Engineering; Shaanxi Normal University; P.R. China
| | - Ling Xu
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology; School of Chemistry & Chemical Engineering; Shaanxi Normal University; P.R. China
| | - Zenglin Wang
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology; School of Chemistry & Chemical Engineering; Shaanxi Normal University; P.R. China
| | - Hao Huang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Chemistry and Chemical Engineering; Shaanxi Normal University; P.R. China
| | - Huan Jiao
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology; School of Chemistry & Chemical Engineering; Shaanxi Normal University; P.R. China
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