1
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Liu H, Zhang XF, Li M, Yao J. Attapulgite-Reinforced Cellulose Hydrogels with High Conductivity and Antifreezing Property for Flexible Sensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:20986-20994. [PMID: 39321402 DOI: 10.1021/acs.langmuir.4c02244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/27/2024]
Abstract
Ionic conductive cellulose hydrogels are some of the most promising candidates for flexible sensors. However, it is difficult to simultaneously prepare cellulose hydrogels with high mechanical strength, good ionic conductivity, and antifreeze performance. In this work, a natural clay (attapulgite)-reinforced cellulose hydrogel was fabricated. Through a one-pot method, cellulose and attapulgite were dispersed in a concentrated ZnCl2 solution. The obtained hydrogel exhibited a dual network of hydrogen bonds and Zn2+-induced ionic interactions. Attapulgite serves as an inorganic filler that can regulate the hydrogen-bonding density among cellulose molecules and provides abundant channels for fast ion transport. By optimizing the attapulgite loading, a mechanically strong (compressive strength up to 1.10 MPa), tough (fracture energy up to 0.36 MJ m-3), highly ionic conductive (4.15 S m-1), and freezing-tolerant hydrogel was prepared. These hydrogels can be used for sensitive and stable human motion sensing, demonstrating their great potential for healthcare applications.
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Affiliation(s)
- Hu Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xiong-Fei Zhang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Mengjie Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jianfeng Yao
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
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2
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Su CY, Li D, Wang LJ, Wang Y. Eco-friendly electronic food labels: Development and application of Ion-SSPB double network hydrogel. J Colloid Interface Sci 2024; 671:154-164. [PMID: 38797141 DOI: 10.1016/j.jcis.2024.05.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/18/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Although various conductive hydrogels have been developed for sensing, ideal materials for meeting the safety and toughness requirements of food detection are still lacking. This study introduces Ion-SSPB, a conductive hydrogel fabricated from eco-friendly, food-grade materials such as corn starch (CS), sodium alginate (SA), polyvinyl alcohol (PVA) and bentonite (BT). It leverages a green manufacturing approach designed for application in electronic food sensors. The hydrogel is achieved through a double network strategy and salt immersion method, which endows it with tunable mechanical and rheological properties. A key innovation of Ion-SSPB is the incorporation of bentonite, which enhances its performance, including low swelling, freezing resistance, and minimal residual adhesion. The hydrogel with 4% (w/v) BT concentration (Ion-SSPB4%) is an effective medium for detecting impedance changes in mangoes, correlating with their ripening stages. The Ion-SSPB hydrogel represents a significant advancement in the field of electronic food labels, combining environmental sustainability with technical efficacy.
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Affiliation(s)
- Chun-Yan Su
- College of Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, National Energy R & D Center for Non-food Biomass, China Agricultural University, P. O. Box 50 17 Qinghua Donglu Beijing, China
| | - Dong Li
- College of Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, National Energy R & D Center for Non-food Biomass, China Agricultural University, P. O. Box 50 17 Qinghua Donglu Beijing, China.
| | - Li-Jun Wang
- College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Functional Food from Plant Resources, China Agricultural University, Beijing 100083, China.
| | - Yong Wang
- School of Chemical Engineering, University of New South Wales, Kensington, New South Wales, Australia
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3
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Wang Y, Fang LP, Zhang HY, Ren JJ, Liang T, Lv XB, Cheng CJ, Yu HR. Efficient adsorption of cationic dyes by a novel honeycomb-like porous hydrogel with ultrahigh mechanical property. Int J Biol Macromol 2024; 278:134457. [PMID: 39111487 DOI: 10.1016/j.ijbiomac.2024.134457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 07/17/2024] [Accepted: 08/01/2024] [Indexed: 08/13/2024]
Abstract
The optimization of hydrogel structure is crucial for adsorption capacity, mechanical stability, and reusability. Herein, a chitosan and laponite-XLS co-doped poly(acrylic acid-co-acrylamide) hydrogel (CXAA) with honeycomb-like porous structures is synthesized by cooperative cross-linking of 2-hydroxypropyltrimethyl ammonium chloride chitosan (HACC) and laponite-XLS in reticular frameworks of acrylic acid (AAc) and acrylamide (AM). The CXAA exhibits extraordinary mechanical performances including tough tensile strength (3.36 MPa) and elasticity (2756 %), which facilitates recycling in practical adsorption treatment and broadens potential applications. Since the regular porous structures can fully expose numerous adsorption sites and electronegative natures within polymer materials, CXAA displays efficient and selective adsorption properties for cationic dyes like methylene blue (MB) and malachite green (MG) from mixed pollutants and can reach record-high values (MB = 6886 mg g-1, MG = 11,381 mg g-1) compared with previously reported adsorbents. Therefore, CXAA exhibits promising potential for separating cationic and anionic dyes by their charge disparities. Mechanism studies show that the synergistic effects of HACC, laponite-XLS, and functional groups in monomers promote highly efficient adsorption. Besides, the adsorption capacity of CXAA remains stable even after undergoing five cycles of regeneration. The results confirm that CXAA is a promising adsorbent for effectively removing organic dyes in wastewater.
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Affiliation(s)
- Yun Wang
- School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China
| | - Li-Ping Fang
- School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China
| | - Hui-Yao Zhang
- School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China
| | - Jun-Jie Ren
- School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China
| | - Ting Liang
- School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China; Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China; Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China
| | - Xing-Bin Lv
- School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China; Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China; Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China
| | - Chang-Jing Cheng
- School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China; Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China; Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China
| | - Hai-Rong Yu
- School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China; Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China; Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610225, China.
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4
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Wanyan H, Li Q, Huang H, Li J, Huang L, Chen L, Wei J, Zhou X, Tang Z, Wu H. Flexible high electrochemical active hydrogel for wearable sensors and supercapacitor electrolytes. Int J Biol Macromol 2024; 277:134356. [PMID: 39089551 DOI: 10.1016/j.ijbiomac.2024.134356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 07/17/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
With the rapid advancement of flexible, portable devices, hydrogel electrolytes have gained considerable attention as potential replacements for conventional liquid electrolytes. A hydrogel electrolyte was synthesised by cross-linking acrylic acid (AA), acrylamide (AM), carboxymethyl cellulose (CMC), and zinc sulphate (ZnSO4). The formation of hydrogen bonds and chelate interactions between the P(AA-co-AM) polymer, CMC, and ZnSO4 created a robust network, enhancing the mechanical properties of the hydrogel electrolytes. Notably, the hydrogel electrolyte containing 0.6 % CMC demonstrated superior mechanical strength (compression strength of 1.22 MPa, tensile stress of 230 kPa, tensile strain of 424 %, adhesion strength of 1.98 MPa on wood). Additionally, the CMC/P(AA-co-AM) hydrogels exhibited commendable electrical performance (38 mS/cm) and a high gauge factor (2.9), enabling the precise detection of physiological activity signals through resistance measurements. The unique network structure of the hydrogel electrolyte also ensured a stable bonding interface between the electrode and the electrolyte. After 2000 charge-discharge cycles, the supercapacitor maintained good capacitance characteristics, with a capacitance retention rate of 71.21 % and a stable Coulombic efficiency of 98.85 %, demonstrating excellent cyclic stability. This study introduces a novel methodology for fabricating multifunctional all-solid-state supercapacitors and suggests that the hydrogel can significantly advance the development of wearable energy storage devices.
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Affiliation(s)
- Hongying Wanyan
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, PR China
| | - Qin Li
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, PR China; College of Chemical and Environmental Engineering, Anyang Key Laboratory of Antibacterial and Antiviral, Anyang Institute of Technology, Anyang, Henan 455000, PR China
| | - Hai Huang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, PR China
| | - Jianguo Li
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, PR China
| | - Liulian Huang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, PR China
| | - Lihui Chen
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, PR China
| | - Jingjing Wei
- College of Chemical and Environmental Engineering, Anyang Key Laboratory of Antibacterial and Antiviral, Anyang Institute of Technology, Anyang, Henan 455000, PR China.
| | - Xiaxing Zhou
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, PR China.
| | - Zuwu Tang
- School of Materials and Packaging Engineering, Fujian Polytechnic Normal University, Fuzhou, Fujian 350300, PR China.
| | - Hui Wu
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, PR China.
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5
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Hong S, Yu T, Wang Z, Lee CH. Biomaterials for reliable wearable health monitoring: Applications in skin and eye integration. Biomaterials 2024; 314:122862. [PMID: 39357154 DOI: 10.1016/j.biomaterials.2024.122862] [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: 05/14/2024] [Revised: 09/22/2024] [Accepted: 09/26/2024] [Indexed: 10/04/2024]
Abstract
Recent advancements in biomaterials have significantly impacted wearable health monitoring, creating opportunities for personalized and non-invasive health assessments. These developments address the growing demand for customized healthcare solutions. Durability is a critical factor for biomaterials in wearable applications, as they must withstand diverse wearing conditions effectively. Therefore, there is a heightened focus on developing biomaterials that maintain robust and stable functionalities, essential for advancing wearable sensing technologies. This review examines the biomaterials used in wearable sensors, specifically those interfaced with human skin and eyes, highlighting essential strategies for achieving long-lasting and stable performance. We specifically discuss three main categories of biomaterials-hydrogels, fibers, and hybrid materials-each offering distinct properties ideal for use in durable wearable health monitoring systems. Moreover, we delve into the latest advancements in biomaterial-based sensors, which hold the potential to facilitate early disease detection, preventative interventions, and tailored healthcare approaches. We also address ongoing challenges and suggest future directions for research on material-based wearable sensors to encourage continuous innovation in this dynamic field.
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Affiliation(s)
- Seokkyoon Hong
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Tianhao Yu
- School of Mechanical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Ziheng Wang
- School of Mechanical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Chi Hwan Lee
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA; School of Mechanical Engineering, Purdue University, West Lafayette, IN, 47907, USA; Center for Implantable Devices, Purdue University, West Lafayette, IN, 47907, USA; School of Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA; Elmore Family School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA.
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6
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Wang X, Li Y, Yu X. Hydrotalcite-Enhanced Tough and Strong Hydrogel Endowed by Coordination and Electrostatic Interactions for Both Strain and Pressure Sensors. Inorg Chem 2024. [PMID: 39257279 DOI: 10.1021/acs.inorgchem.4c02696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2024]
Abstract
Polymer hydrogels have a wide range of applications in the field of flexible wearable devices from the perspective of easy commercialization and environmental compatibility. However, traditional hydrogels often fail to achieve adequate mechanical strength and performance such as toughness, resilience, and ionic conductivity. Herein, a significant enhancement of tensile strength in 2 orders of magnitude (from 36 kPa to 1.5 MPa) is obtained by the introduction of hydrotalcite into polymer network via multiple, multilevel, and strong interactions of strengthened interface interactions, and the enhancement effect is superior to most of known records. Meanwhile, the enhanced conductivity may be rationally attributed to effective channels of hydrotalcite for ion transport. As a result, high toughness (9.5 MJ/m3), stretchability (1520%), excellent resilience (100% rebound of 400% strain), high conductivity (2.6 mS/cm), and low-temperature resistance are successfully achieved. The work shows an efficient approach to design desired ultratough and multifunctional hydrogels.
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Affiliation(s)
- Xiaoya Wang
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, and College of Science, Hebei University of Science and Technology, Yuxiang Road 26, Shijiazhuang 050080, PR China
| | - Yajuan Li
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, and College of Science, Hebei University of Science and Technology, Yuxiang Road 26, Shijiazhuang 050080, PR China
| | - Xudong Yu
- Hebei Provincial Key Laboratory of Photoelectric Control on Surface and Interface, and College of Science, Hebei University of Science and Technology, Yuxiang Road 26, Shijiazhuang 050080, PR China
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7
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Liang X, Zhang M, Chong CM, Lin D, Chen S, Zhen Y, Ding H, Zhong HJ. Recent Advances in the 3D Printing of Conductive Hydrogels for Sensor Applications: A Review. Polymers (Basel) 2024; 16:2131. [PMID: 39125157 PMCID: PMC11314299 DOI: 10.3390/polym16152131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/21/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
Conductive hydrogels, known for their flexibility, biocompatibility, and conductivity, have found extensive applications in fields such as healthcare, environmental monitoring, and soft robotics. Recent advancements in 3D printing technologies have transformed the fabrication of conductive hydrogels, creating new opportunities for sensing applications. This review provides a comprehensive overview of the advancements in the fabrication and application of 3D-printed conductive hydrogel sensors. First, the basic principles and fabrication techniques of conductive hydrogels are briefly reviewed. We then explore various 3D printing methods for conductive hydrogels, discussing their respective strengths and limitations. The review also summarizes the applications of 3D-printed conductive hydrogel-based sensors. In addition, perspectives on 3D-printed conductive hydrogel sensors are highlighted. This review aims to equip researchers and engineers with insights into the current landscape of 3D-printed conductive hydrogel sensors and to inspire future innovations in this promising field.
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Affiliation(s)
- Xiaoxu Liang
- Foundation Department, Guangzhou Maritime University, Guangzhou 510725, China; (X.L.); (M.Z.)
| | - Minghui Zhang
- Foundation Department, Guangzhou Maritime University, Guangzhou 510725, China; (X.L.); (M.Z.)
| | - Cheong-Meng Chong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China;
| | - Danlei Lin
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; (D.L.); (S.C.); (Y.Z.)
| | - Shiji Chen
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; (D.L.); (S.C.); (Y.Z.)
| | - Yumiao Zhen
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; (D.L.); (S.C.); (Y.Z.)
| | - Hongyao Ding
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Hai-Jing Zhong
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; (D.L.); (S.C.); (Y.Z.)
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8
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Vahidi M, Rizkalla AS, Mequanint K. Extracellular Matrix-Surrogate Advanced Functional Composite Biomaterials for Tissue Repair and Regeneration. Adv Healthc Mater 2024:e2401218. [PMID: 39036851 DOI: 10.1002/adhm.202401218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/13/2024] [Indexed: 07/23/2024]
Abstract
Native tissues, comprising multiple cell types and extracellular matrix components, are inherently composites. Mimicking the intricate structure, functionality, and dynamic properties of native composite tissues represents a significant frontier in biomaterials science and tissue engineering research. Biomimetic composite biomaterials combine the benefits of different components, such as polymers, ceramics, metals, and biomolecules, to create tissue-template materials that closely simulate the structure and functionality of native tissues. While the design of composite biomaterials and their in vitro testing are frequently reviewed, there is a considerable gap in whole animal studies that provides insight into the progress toward clinical translation. Herein, we provide an insightful critical review of advanced composite biomaterials applicable in several tissues. The incorporation of bioactive cues and signaling molecules into composite biomaterials to mimic the native microenvironment is discussed. Strategies for the spatiotemporal release of growth factors, cytokines, and extracellular matrix proteins are elucidated, highlighting their role in guiding cellular behavior, promoting tissue regeneration, and modulating immune responses. Advanced composite biomaterials design challenges, such as achieving optimal mechanical properties, improving long-term stability, and integrating multifunctionality into composite biomaterials and future directions, are discussed. We believe that this manuscript provides the reader with a timely perspective on composite biomaterials.
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Affiliation(s)
- Milad Vahidi
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, N6A5B9, Canada
| | - Amin S Rizkalla
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, N6A5B9, Canada
- School of Biomedical Engineering, The University of Western Ontario, London, N6A5B9, Canada
| | - Kibret Mequanint
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, N6A5B9, Canada
- School of Biomedical Engineering, The University of Western Ontario, London, N6A5B9, Canada
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9
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Hasan N, Bhuyan MM, Jeong JH. Single/Multi-Network Conductive Hydrogels-A Review. Polymers (Basel) 2024; 16:2030. [PMID: 39065347 PMCID: PMC11281081 DOI: 10.3390/polym16142030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Revised: 07/10/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Hydrogels made from conductive organic materials have gained significant interest in recent years due to their wide range of uses, such as electrical conductors, freezing resistors, biosensors, actuators, biomedical engineering materials, drug carrier, artificial organs, flexible electronics, battery solar cells, soft robotics, and self-healers. Nevertheless, the insufficient level of effectiveness in electroconductive hydrogels serves as a driving force for researchers to intensify their endeavors in this domain. This article provides a concise overview of the recent advancements in creating self-healing single- or multi-network (double or triple) conductive hydrogels (CHs) using a range of natural and synthetic polymers and monomers. We deliberated on the efficacy, benefits, and drawbacks of several conductive hydrogels. This paper emphasizes the use of natural polymers and innovative 3D printing CHs-based technology to create self-healing conductive gels for flexible electronics. In conclusion, advantages and disadvantages have been noted, and some potential opportunities for self-healing single- or multi-network hydrogels have been proposed.
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Affiliation(s)
| | - Md Murshed Bhuyan
- Department of Mechanical, Smart and Industrial Engineering (Mechanical Engineering Major), Gachon University 1342, Seongnam-si 13120, Republic of Korea;
| | - Jae-Ho Jeong
- Department of Mechanical, Smart and Industrial Engineering (Mechanical Engineering Major), Gachon University 1342, Seongnam-si 13120, Republic of Korea;
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Li H, Zhang D, Bao P, Li Y, Liu C, Meng T, Wang C, Wu H, Pan K. Recent Advances in Functional Hydrogels for Treating Dental Hard Tissue and Endodontic Diseases. ACS NANO 2024; 18:16395-16412. [PMID: 38874120 DOI: 10.1021/acsnano.4c02754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Oral health is the basis of human health, and almost everyone has been affected by oral diseases. Among them, endodontic disease is one of the most common oral diseases. Limited by the characteristics of oral biomaterials, clinical methods for endodontic disease treatment still face large challenges in terms of reliability and stability. The hydrogel is a kind of good biomaterial with an adjustable 3D network structure, excellent mechanical properties, and biocompatibility and is widely used in the basic and clinical research of endodontic disease. This Review discusses the recent advances in functional hydrogels for dental hard tissue and endodontic disease treatment. The emphasis is on the working principles and therapeutic effects of treating different diseases with functional hydrogels. Finally, the challenges and opportunities of hydrogels in oral clinical applications are discussed and proposed. Some viewpoints about the possible development direction of functional hydrogels for oral health in the future are also put forward. Through systematic analysis and conclusion of the recent advances in functional hydrogels for dental hard tissue and endodontic disease treatment, this Review may provide significant guidance and inspiration for oral disease and health in the future.
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Affiliation(s)
- Huixu Li
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266003, P. R. China
- School of Stomatology, Qingdao University, Qingdao 266003, P. R. China
- Department of Endodontics in the first clinical division, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin 300041, P. R. China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, P. R. China
| | - Ding Zhang
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, P. R. China
| | - Pingping Bao
- Department of Endodontics in the first clinical division, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin 300041, P. R. China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, P. R. China
| | - Ying Li
- Department of Endodontics in the first clinical division, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin 300041, P. R. China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, P. R. China
| | - Chaoge Liu
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, P. R. China
- Department of Oramaxillofacial-Head and Neck Surgery, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin 300041, P. R. China
| | - Tingting Meng
- Department of Endodontics in the first clinical division, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin 300041, P. R. China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, P. R. China
| | - Chao Wang
- College of Pharmacy, Xinjiang Medical University, Urumqi 830017, P. R. China
| | - Heting Wu
- College of Pharmacy, Xinjiang Medical University, Urumqi 830017, P. R. China
| | - Keqing Pan
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266003, P. R. China
- School of Stomatology, Qingdao University, Qingdao 266003, P. R. China
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11
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Eufrásio-da-Silva T, Erezuma I, Dolatshahi-Pirouz A, Orive G. Enhancing regenerative medicine with self-healing hydrogels: A solution for tissue repair and advanced cyborganic healthcare devices. BIOMATERIALS ADVANCES 2024; 161:213869. [PMID: 38718714 DOI: 10.1016/j.bioadv.2024.213869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 04/08/2024] [Accepted: 04/19/2024] [Indexed: 06/04/2024]
Abstract
Considering the global burden related to tissue and organ injuries or failures, self-healing hydrogels may be an attractive therapeutic alternative for the future. Self-healing hydrogels are highly hydrated 3D structures with the ability to self-heal after breaking, this property is attributable to a variety of dynamic non-covalent and covalent bonds that are able to re-linking within the matrix. Self-healing ability specially benefits minimal invasive medical treatments with cell-delivery support. Moreover, those tissue-engineered self-healing hydrogels network have demonstrated effectiveness for myriad purposes; for instance, they could act as delivery-platforms for different cargos (drugs, growth factors, cells, among others) in tissues such as bone, cartilage, nerve or skin. Besides, self-healing hydrogels have currently found their way into new and novel applications; for example, with the development of the self-healing adhesive hydrogels, by merely aiding surgical closing processes and by providing biomaterial-tissue adhesion. Furthermore, conductive hydrogels permit the stimuli and monitoring of natural electrical signals, which facilitated a better fitting of hydrogels in native tissue or the diagnosis of various health diseases. Lastly, self-healing hydrogels could be part of cyborganics - a merge between biology and machinery - which can pave the way to a finer healthcare devices for diagnostics and precision therapies.
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Affiliation(s)
| | - Itsasne Erezuma
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| | | | - Gorka Orive
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain; University Institute for Regenerative Medicine and Oral Implantology-UIRMI (UPV/EHU-Fundación Eduardo Anitua), 01007 Vitoria-Gasteiz, Spain; Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, Singapore 169856, Singapore.
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12
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Kalulu M, Chilikwazi B, Hu J, Fu G. Soft Actuators and Actuation: Design, Synthesis, and Applications. Macromol Rapid Commun 2024:e2400282. [PMID: 38850266 DOI: 10.1002/marc.202400282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/31/2024] [Indexed: 06/10/2024]
Abstract
Soft actuators are one of the most promising technological advancements with potential solutions to diverse fields' day-to-day challenges. Soft actuators derived from hydrogel materials possess unique features such as flexibility, responsiveness to stimuli, and intricate deformations, making them ideal for soft robotics, artificial muscles, and biomedical applications. This review provides an overview of material composition and design techniques for hydrogel actuators, exploring 3D printing, photopolymerization, cross-linking, and microfabrication methods for improved actuation. It examines applications of hydrogel actuators in biomedical, soft robotics, bioinspired systems, microfluidics, lab-on-a-chip devices, and environmental, and energy systems. Finally, it discusses challenges, opportunities, advancements, and regulatory aspects related to hydrogel actuators.
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Affiliation(s)
- Mulenga Kalulu
- School of Chemistry and Chemical Engineering, Southeast University, Jiangning, Nanjing, Jiangsu Province, 211189, P. R. China
- Department of Chemistry, School of Natural Sciences, The University of Zambia, Lusaka, 10101, Zambia
| | - Bright Chilikwazi
- Department of Chemistry, School of Natural Sciences, The University of Zambia, Lusaka, 10101, Zambia
| | - Jun Hu
- School of Chemistry and Chemical Engineering, Southeast University, Jiangning, Nanjing, Jiangsu Province, 211189, P. R. China
| | - Guodong Fu
- School of Chemistry and Chemical Engineering, Southeast University, Jiangning, Nanjing, Jiangsu Province, 211189, P. R. China
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13
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Du B, Yin M, Yang K, Wang S, Pei Y, Luo R, Zhou S, Li H. Ultrafast Polymerization of a Self-Adhesive and Strain Sensitive Hydrogel-Based Flexible Sensor for Human Motion Monitoring and Handwriting Recognition. Polymers (Basel) 2024; 16:1595. [PMID: 38891541 PMCID: PMC11175077 DOI: 10.3390/polym16111595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 05/28/2024] [Accepted: 05/31/2024] [Indexed: 06/21/2024] Open
Abstract
Hydrogel-based flexible electronic devices have great potential in human motion monitoring, electronic skins, and human-computer interaction applications; hence, the efficient preparation of highly sensitive hydrogel-based flexible sensors is important. In the present work, the ultrafast polymerization of a hydrogel (1-3 min) was achieved by constructing a tannic acid (TA)-Fe3+ dynamic redox system, which endowed the hydrogel with good adhesion performance (the adhesion strength in wood was 17.646 kPa). In addition, the uniform dispersal ensured by incorporating polydopamine-decorated polypyrrole (PPy@PDA) into the hydrogel matrix significantly improved the hydrogel's stretching ability (575.082%). The as-prepared PAM/CS/PPy@PDA/TA hydrogel-based flexible sensor had a high-fidelity low detection limit (strain = 1%), high sensitivity at small strains (GF = 5.311 at strain = 0-8%), and fast response time (0.33 s) and recovery time (0.25 s), and it was reliably applied to accurate human motion monitoring and handwriting recognition. The PAM/CS/PPy@PDA/TA hydrogel opens new horizons for wearable electronic devices, electronic skins, and human-computer interaction applications.
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Affiliation(s)
- Bin Du
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710054, China; (B.D.); (M.Y.); (S.W.); (Y.P.); (S.Z.); (H.L.)
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710054, China;
| | - Mengwei Yin
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710054, China; (B.D.); (M.Y.); (S.W.); (Y.P.); (S.Z.); (H.L.)
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710054, China;
| | - Kenan Yang
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710054, China;
- School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710054, China
| | - Sainan Wang
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710054, China; (B.D.); (M.Y.); (S.W.); (Y.P.); (S.Z.); (H.L.)
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710054, China;
| | - Yiting Pei
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710054, China; (B.D.); (M.Y.); (S.W.); (Y.P.); (S.Z.); (H.L.)
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710054, China;
| | - Rubai Luo
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710054, China; (B.D.); (M.Y.); (S.W.); (Y.P.); (S.Z.); (H.L.)
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710054, China;
| | - Shisheng Zhou
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710054, China; (B.D.); (M.Y.); (S.W.); (Y.P.); (S.Z.); (H.L.)
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710054, China;
| | - Huailin Li
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710054, China; (B.D.); (M.Y.); (S.W.); (Y.P.); (S.Z.); (H.L.)
- Shaanxi Provincial Key Laboratory of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an 710054, China;
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14
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Choi SH, Kim JH, Ahn J, Kim T, Jung Y, Won D, Bang J, Pyun KR, Jeong S, Kim H, Kim YG, Ko SH. Phase patterning of liquid crystal elastomers by laser-induced dynamic crosslinking. NATURE MATERIALS 2024; 23:834-843. [PMID: 38532072 DOI: 10.1038/s41563-024-01845-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 02/21/2024] [Indexed: 03/28/2024]
Abstract
Liquid crystal elastomers hold promise in various fields due to their reversible transition of mechanical and optical properties across distinct phases. However, the lack of local phase patterning techniques and irreversible phase programming has hindered their broad implementation. Here we introduce laser-induced dynamic crosslinking, which leverages the precision and control offered by laser technology to achieve high-resolution multilevel patterning and transmittance modulation. Incorporation of allyl sulfide groups enables adaptive liquid crystal elastomers that can be reconfigured into desired phases or complex patterns. Laser-induced dynamic crosslinking is compatible with existing processing methods and allows the generation of thermo- and strain-responsive patterns that include isotropic, polydomain and monodomain phases within a single liquid crystal elastomer film. We show temporary information encryption at body temperature, expanding the functionality of liquid crystal elastomer devices in wearable applications.
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Affiliation(s)
- Seok Hwan Choi
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea
| | - Ju Hee Kim
- Department of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, Republic of Korea
| | - Jiyong Ahn
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea
| | - Taegyeom Kim
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea
| | - Yeongju Jung
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea
| | - Daeyeon Won
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea
| | - Junhyuk Bang
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea
| | - Kyung Rok Pyun
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea
| | - Seongmin Jeong
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea
| | - Hyunsu Kim
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea
| | - Young Gyu Kim
- Department of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, Republic of Korea
| | - Seung Hwan Ko
- Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea.
- Institute of Engineering Research / Institute of Advanced Machinery and Design (SNU-IAMD), Seoul National University, Seoul, Republic of Korea.
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Korea.
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15
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García-Astrain C, Henriksen-Lacey M, Lenzi E, Renero-Lecuna C, Langer J, Piñeiro P, Molina-Martínez B, Plou J, Jimenez de Aberasturi D, Liz-Marzán LM. A Scaffold-Assisted 3D Cancer Cell Model for Surface-Enhanced Raman Scattering-Based Real-Time Sensing and Imaging. ACS NANO 2024; 18:11257-11269. [PMID: 38632933 PMCID: PMC11064228 DOI: 10.1021/acsnano.4c00543] [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: 01/12/2024] [Revised: 04/02/2024] [Accepted: 04/09/2024] [Indexed: 04/19/2024]
Abstract
Despite recent advances in the development of scaffold-based three-dimensional (3D) cell models, challenges persist in imaging and monitoring cell behavior within these complex structures due to their heterogeneous cell distribution and geometries. Incorporating sensors into 3D scaffolds provides a potential solution for real-time, in situ sensing and imaging of biological processes such as cell growth and disease development. We introduce a 3D printed hydrogel-based scaffold capable of supporting both surface-enhanced Raman scattering (SERS) biosensing and imaging of 3D breast cancer cell models. The scaffold incorporates plasmonic nanoparticles and SERS tags, for sensing and imaging, respectively. We demonstrate the scaffold's adaptability and modularity in supporting breast cancer spheroids, thereby enabling spatial and temporal monitoring of tumor evolution.
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Affiliation(s)
- Clara García-Astrain
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Centro
de Investigación Biomédica en Red, Bioingeniería,
Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Spain
| | - Malou Henriksen-Lacey
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Centro
de Investigación Biomédica en Red, Bioingeniería,
Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Spain
| | - Elisa Lenzi
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
| | - Carlos Renero-Lecuna
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Cinbio,
University of Vigo, 36310 Vigo, Spain
| | - Judith Langer
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
| | - Paula Piñeiro
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Department
of Applied Chemistry, University of the
Basque Country (UPV-EHU), 20018 Donostia-San Sebastián, Spain
| | - Beatriz Molina-Martínez
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
| | - Javier Plou
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
| | - Dorleta Jimenez de Aberasturi
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Centro
de Investigación Biomédica en Red, Bioingeniería,
Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- Ikerbasque,
Basque Foundation for Science, 48009 Bilbao, Spain
| | - Luis M. Liz-Marzán
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Centro
de Investigación Biomédica en Red, Bioingeniería,
Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- Cinbio,
University of Vigo, 36310 Vigo, Spain
- Ikerbasque,
Basque Foundation for Science, 48009 Bilbao, Spain
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16
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Dutta T, Chaturvedi P, Llamas-Garro I, Velázquez-González JS, Dubey R, Mishra SK. Smart materials for flexible electronics and devices: hydrogel. RSC Adv 2024; 14:12984-13004. [PMID: 38655485 PMCID: PMC11033831 DOI: 10.1039/d4ra01168f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/05/2024] [Indexed: 04/26/2024] Open
Abstract
In recent years, flexible conductive materials have attracted considerable attention for their potential use in flexible energy storage devices, touch panels, sensors, memristors, and other applications. The outstanding flexibility, electricity, and tunable mechanical properties of hydrogels make them ideal conductive materials for flexible electronic devices. Various synthetic strategies have been developed to produce conductive and environmentally friendly hydrogels for high-performance flexible electronics. In this review, we discuss the state-of-the-art applications of hydrogels in flexible electronics, such as energy storage, touch panels, memristor devices, and sensors like temperature, gas, humidity, chemical, strain, and textile sensors, and the latest synthesis methods of hydrogels. Describe the process of fabricating sensors as well. Finally, we discussed the challenges and future research avenues for flexible and portable electronic devices based on hydrogels.
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Affiliation(s)
- Taposhree Dutta
- Department of Chemistry, Indian Institute of Engineering Science and Technology Shibpur Howrah W.B. - 711103 India
| | - Pavan Chaturvedi
- Department of Physics, Vanderbilt University 3414 Murphy Rd, Apt#4 Nashville TN-37203 USA +575-650-4595
| | - Ignacio Llamas-Garro
- Navigation and Positioning Research Unit, Centre Tecnològic de Telecomunicacions de Catalunya Castelldefels Spain
| | | | - Rakesh Dubey
- Instiute of Physics, University of Szczecin Poland
| | - Satyendra Kumar Mishra
- Space and Reslinent Research Unit, Centre Tecnològic de Telecomunicacions de Catalunya Castelldefels Spain
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17
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Zhou K, Ding R, Ma X, Lin Y. Printable and flexible integrated sensing systems for wireless healthcare. NANOSCALE 2024; 16:7264-7286. [PMID: 38470428 DOI: 10.1039/d3nr06099c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
The rapid development of wearable sensing devices and artificial intelligence has enabled portable and wireless tracking of human health, fulfilling the promise of digitalized healthcare applications. To achieve versatile design and integration of multi-functional modules including sensors and data transmission units onto various flexible platforms, printable technologies emerged as some of the most promising strategies. This review first introduces the commonly utilized printing technologies, followed by discussion of the printable ink formulations and flexible substrates to ensure reliable device fabrication and system integration. The advances of printable sensors for body status monitoring are then discussed. Moreover, the integration of wireless data transmission via printable approaches is also presented. Finally, the challenges in achieving printable sensing devices and wireless integrated systems with competitive performances are considered, so as to realize their practical applications for personalized healthcare.
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Affiliation(s)
- Kemeng Zhou
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Ruochen Ding
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Xiaohao Ma
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Yuanjing Lin
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China.
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18
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Liu F, Bai D, Xie D, Lv F, Shen L, Tian Z, Zhao J. Additive Manufacturing of Stretchable Multi-Walled Carbon Nanotubes/Thermoplastic Polyurethanes Conducting Polymers for Strain Sensing. 3D PRINTING AND ADDITIVE MANUFACTURING 2024; 11:e698-e708. [PMID: 39246677 PMCID: PMC11378349 DOI: 10.1089/3dp.2022.0223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/10/2024]
Abstract
With the development of science and technology, flexible sensors play an indispensable role in body monitoring. Rapid prototyping of high-performance flexible sensors has become an important method to develop flexible sensors. The purpose of this study was to develop a flexible resin with multi-walled carbon nanotubes (MWCNTs) for the rapid fabrication of flexible sensors using digital light processing additive manufacturing. In this study, MWCNTs were mixed in thermoplastic polyurethane (TPU) photosensitive resin to prepare polymer-matrix composites, and a flexible strain sensor was prepared using self-developed additive equipment. The results showed that the 1.2 wt% MWCNTs/TPU composite flexible sensor had high gauge factor of 9.988 with a linearity up to 45% strain and high mechanical durability (1000 cycles). Furthermore, the sensor could be used for gesture recognition and monitoring and has good performance. This method is expected to provide a new idea for the rapid personalized forming of flexible sensors.
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Affiliation(s)
- Fuxi Liu
- Department of Mechanical Manufacturing and Automation, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
- JITRI Institute of Precision Manufacturing, Nanjing, China
| | - Dezhi Bai
- Department of Mechanical Manufacturing and Automation, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Deqiao Xie
- College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Fei Lv
- Laboratory of High Power Fiber Laser Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China
| | - Lida Shen
- Department of Mechanical Manufacturing and Automation, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
- Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Zongjun Tian
- Department of Mechanical Manufacturing and Automation, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
- JITRI Institute of Precision Manufacturing, Nanjing, China
- Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Jianfeng Zhao
- Department of Mechanical Manufacturing and Automation, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
- Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing, China
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Das S, Thimukonda Jegadeesan J, Basu B. Advancing Peripheral Nerve Regeneration: 3D Bioprinting of GelMA-Based Cell-Laden Electroactive Bioinks for Nerve Conduits. ACS Biomater Sci Eng 2024; 10:1620-1645. [PMID: 38345020 DOI: 10.1021/acsbiomaterials.3c01226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Peripheral nerve injuries often result in substantial impairment of the neurostimulatory organs. While the autograft is still largely used as the "gold standard" clinical treatment option, nerve guidance conduits (NGCs) are currently considered a promising approach for promoting peripheral nerve regeneration. While several attempts have been made to construct NGCs using various biomaterial combinations, a comprehensive exploration of the process science associated with three-dimensional (3D) extrusion printing of NGCs with clinically relevant sizes (length: 20 mm; diameter: 2-8 mm), while focusing on tunable buildability using electroactive biomaterial inks, remains unexplored. In addressing this gap, we present here the results of the viscoelastic properties of a range of a multifunctional gelatin methacrylate (GelMA)/poly(ethylene glycol) diacrylate (PEGDA)/carbon nanofiber (CNF)/gellan gum (GG) hydrogel bioink formulations and printability assessment using experiments and quantitative models. Our results clearly established the positive impact of the gellan gum on the enhancement of the rheological properties. Interestingly, the strategic incorporation of PEGDA as a secondary cross-linker led to a remarkable enhancement in the strength and modulus by 3 and 8-fold, respectively. Moreover, conductive CNF addition resulted in a 4-fold improvement in measured electrical conductivity. The use of four-component electroactive biomaterial ink allowed us to obtain high neural cell viability in 3D bioprinted constructs. While the conventionally cast scaffolds can support the differentiation of neuro-2a cells, the most important result has been the excellent cell viability of neural cells in 3D encapsulated structures. Taken together, our findings demonstrate the potential of 3D bioprinting and multimodal biophysical cues in developing functional yet critical-sized nerve conduits for peripheral nerve tissue regeneration.
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Affiliation(s)
- Soumitra Das
- Laboratory for Biomaterials, Materials Research Centre, Indian Institute of Science, Bangalore 560012, India
| | | | - Bikramjit Basu
- Laboratory for Biomaterials, Materials Research Centre, Indian Institute of Science, Bangalore 560012, India
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20
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Zhu J, Xu H, Hu Q, Yang Y, Ni S, Peng F, Jin X. High stretchable and tough xylan-g-gelatin hydrogel via the synergy of chemical cross-linking and salting out for strain sensors. Int J Biol Macromol 2024; 261:129759. [PMID: 38281523 DOI: 10.1016/j.ijbiomac.2024.129759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/03/2024] [Accepted: 01/24/2024] [Indexed: 01/30/2024]
Abstract
Stretchable and tough hydrogels have been extensively used in tissue engineering scaffolds and flexible electronics. However, it is still a significant challenge to prepare hydrogels with both tensile strength and toughness by utilizing xylan, which is abundant in nature. Herein, we present a novel hydrogel of carboxymethyl xylan(CMX) graft gelatin (G) and doped with conductive hydroxyl carbon nanotubes (OCNT). CMX and G are combined through amide bonding as well as intermolecular hydrogen bonding to form a semi-interpenetrating hydrogel network. The hydrogel was further subjected to salting-out treatment, which induced the aggregation of the CMX-g-G molecular chain and the formation of chain bundles to toughen the hydrogel, the tensile strain, tensile stress, and toughness of CMX-g-G hydrogels were 1.547 MPa, 324 %, and 2.31 MJ m-3, respectively. In addition, OCNT was used as a conductive filler to impart electrical conductivity and further improve the mechanical properties of CMX-g-G/OCNT hydrogel, and a tensile strength of 1.62 MPa was obtained. Thus, the synthesized CMX-g-G/OCNT hydrogel can be used as a reliable and sensitive strain sensor for monitoring human activity. This study opens up new horizons for the preparation of xylan-based high-performance hydrogels.
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Affiliation(s)
- Jingqiao Zhu
- Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Hanping Xu
- Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Qiangli Hu
- Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Yujia Yang
- Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Siyang Ni
- Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Feng Peng
- Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Xiaojuan Jin
- Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China.
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21
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Chowdhury SR, Mondal G, Ratnayake P, Basu B. Three-Dimensional Extrusion Printed Urinary Specific Grafts: Mechanistic Insights into Buildability and Biophysical Properties. ACS Biomater Sci Eng 2024; 10:1040-1061. [PMID: 38294204 DOI: 10.1021/acsbiomaterials.3c01422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
The compositional formulations and the optimization of process parameters to fabricate hydrogel scaffolds with urological tissue-mimicking biophysical properties are not yet extensively explored, including a comprehensive assessment of a spectrum of properties, such as mechanical strength, viscoelasticity, antimicrobial property, and cytocompatibility. While addressing this aspect, the present work provides mechanistic insights into process science, to produce shape-fidelity compliant alginate-based biomaterial ink blended with gelatin and synthetic nanocellulose. The composition-dependent pseudoplasticity, viscoelasticity, thixotropy, and gel stability over a longer duration in physiological context have been rationalized in terms of intermolecular hydrogen bonding interactions among the biomaterial ink constituents. By varying the hybrid hydrogel ink composition within a narrow compositional window, the resulting hydrogel closely mimics the natural urological tissue-like properties, including tensile stretchability, compressive strength, and biophysical properties. Based on the printability assessment using a critical analysis of gel strength, we have established the buildability of the acellular hydrogel ink and have been successful in fabricating shape-fidelity compliant urological patches or hollow cylindrical grafts using 3D extrusion printing. Importantly, the new hydrogel formulations with good hydrophilicity, support fibroblast cell proliferation and inhibit the growth of Gram-negative E. coli bacteria. These attributes were rationalized in terms of nanocellulose-induced physicochemical changes on the scaffold surface. Taken together, the present study uncovers the process-science-based understanding of the 3D extrudability of the newly formulated alginate-gelatin-nanocellulose-based hydrogels with urological tissue-specific biophysical, cytocompatibility, and antibacterial properties.
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Affiliation(s)
- Sulob Roy Chowdhury
- Materials Research Centre, Indian Institute of Science, Bangalore 560012, India
| | - Garga Mondal
- Materials Research Centre, Indian Institute of Science, Bangalore 560012, India
| | - Praneeth Ratnayake
- Materials Research Centre, Indian Institute of Science, Bangalore 560012, India
| | - Bikramjit Basu
- Materials Research Centre, Indian Institute of Science, Bangalore 560012, India
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22
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Yue D, Shi S, Chen H, Bai L, Wang W, Yang H, Yang L, Wei D. Fabrication of anti-freezing and self-healing nanocomposite hydrogels based on phytic acid and cellulose nanocrystals for high strain sensing applications. J Mater Chem B 2024; 12:762-771. [PMID: 38167689 DOI: 10.1039/d3tb02482b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
For hydrogel-based flexible sensors, it is a challenge to enhance the stability at sub-zero temperatures while maintaining good self-healing properties. Herein, an anti-freezing nanocomposite hydrogel with self-healing properties and conductivity was designed by introducing cellulose nanocrystals (CNCs) and phytic acid (PA). The CNCs were grafted with polypyrrole (PPy) by chemical oxidation, which were used as the nanoparticle reinforcement phase to reinforce the mechanical strength of hydrogels (851.8%). PA as a biomass material could form strong hydrogen bond interactions with H2O molecules, endowing hydrogels with prominent anti-freezing properties. Based on the non-covalent interactions, the self-healing rate of the hydrogels reached 92.9% at -15 °C as the content of PA was 40.0 wt%. Hydrogel-based strain sensors displayed high sensitivity (GF = 0.75), rapid response time (350 ms), good conductivity (3.1 S m-1) and stability at -15 °C. Various human movements could be detected by using them, including small (smile and frown) and large changes (elbow and knee bending). This work provides a promising method for the development of flexible wearable sensors that work stably in frigid environments.
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Affiliation(s)
- Dongqi Yue
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
| | - Shaoning Shi
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
| | - Hou Chen
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
| | - Liangjiu Bai
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
| | - Wenxiang Wang
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
| | - Huawei Yang
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
| | - Lixia Yang
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
| | - Donglei Wei
- School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
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23
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Eivazzadeh-Keihan R, Sadat Z, Lalebeigi F, Naderi N, Panahi L, Ganjali F, Mahdian S, Saadatidizaji Z, Mahdavi M, Chidar E, Soleimani E, Ghaee A, Maleki A, Zare I. Effects of mechanical properties of carbon-based nanocomposites on scaffolds for tissue engineering applications: a comprehensive review. NANOSCALE ADVANCES 2024; 6:337-366. [PMID: 38235087 PMCID: PMC10790973 DOI: 10.1039/d3na00554b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 12/03/2023] [Indexed: 01/19/2024]
Abstract
Mechanical properties, such as elasticity modulus, tensile strength, elongation, hardness, density, creep, toughness, brittleness, durability, stiffness, creep rupture, corrosion and wear, a low coefficient of thermal expansion, and fatigue limit, are some of the most important features of a biomaterial in tissue engineering applications. Furthermore, the scaffolds used in tissue engineering must exhibit mechanical and biological behaviour close to the target tissue. Thus, a variety of materials has been studied for enhancing the mechanical performance of composites. Carbon-based nanostructures, such as graphene oxide (GO), reduced graphene oxide (rGO), carbon nanotubes (CNTs), fibrous carbon nanostructures, and nanodiamonds (NDs), have shown great potential for this purpose. This is owing to their biocompatibility, high chemical and physical stability, ease of functionalization, and numerous surface functional groups with the capability to form covalent bonds and electrostatic interactions with other components in the composite, thus significantly enhancing their mechanical properties. Considering the outstanding capabilities of carbon nanostructures in enhancing the mechanical properties of biocomposites and increasing their applicability in tissue engineering and the lack of comprehensive studies on their biosafety and role in increasing the mechanical behaviour of scaffolds, a comprehensive review on carbon nanostructures is provided in this study.
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Affiliation(s)
- Reza Eivazzadeh-Keihan
- Department of Chemistry, Catalysts and Organic Synthesis Research Laboratory, Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Zahra Sadat
- Department of Chemistry, Catalysts and Organic Synthesis Research Laboratory, Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Farnaz Lalebeigi
- Department of Chemistry, Catalysts and Organic Synthesis Research Laboratory, Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Nooshin Naderi
- Department of Chemistry, Catalysts and Organic Synthesis Research Laboratory, Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Leila Panahi
- Department of Chemistry, Catalysts and Organic Synthesis Research Laboratory, Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Fatemeh Ganjali
- Department of Chemistry, Catalysts and Organic Synthesis Research Laboratory, Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Sakineh Mahdian
- Department of Chemistry, Catalysts and Organic Synthesis Research Laboratory, Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Zahra Saadatidizaji
- Department of Chemistry, Catalysts and Organic Synthesis Research Laboratory, Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences Tehran Iran
| | - Elham Chidar
- Department of Chemistry, Catalysts and Organic Synthesis Research Laboratory, Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Erfan Soleimani
- Department of Chemistry, Catalysts and Organic Synthesis Research Laboratory, Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Azadeh Ghaee
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran P.O. Box 14395-1561 Tehran Iran
| | - Ali Maleki
- Department of Chemistry, Catalysts and Organic Synthesis Research Laboratory, Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Iman Zare
- Research and Development Department, Sina Medical Biochemistry Technologies Co. Ltd Shiraz 7178795844 Iran
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24
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Ma H, Hou J, Xiao X, Wan R, Ge G, Zheng W, Chen C, Cao J, Wang J, Liu C, Zhao Q, Zhang Z, Jiang P, Chen S, Xiong W, Xu J, Lu B. Self-healing electrical bioadhesive interface for electrophysiology recording. J Colloid Interface Sci 2024; 654:639-648. [PMID: 37864869 DOI: 10.1016/j.jcis.2023.09.190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/01/2023] [Accepted: 09/30/2023] [Indexed: 10/23/2023]
Abstract
Electrical bioadhesive interfaces (EBIs) are standing out in various applications, including medical diagnostics, prosthetic devices, rehabilitation, and human-machine interactions. Nonetheless, crafting a reliable and advanced EBI with comprehensive properties spanning electrochemical, electrical, mechanical, and self-healing capabilities remains a formidable challenge. Herein, we develop a self-healing EBI by thoughtfully integrating conducting polymer nanofibers and a typical bioadhesive within a robust hydrogel matrix. The accomplished EBI demonstrates extraordinary adhesion (lap shear strength of 197 kPa), exceptional electrical conductivity (2.18 S m-1), and outstanding self-healing performance. Taking advantage of these attributes, we integrated the EBI into flexible skin electrodes for surface electromyography (sEMG) signal recording from forearm muscles. The engineered skin electrodes exhibit robust adhesion to the skin even when sweating, rapid self-healing from damage, and seamless real-time signal recording with a higher signal-to-noise ratio (39 dB). Our EBI, along with its skin electrodes, offers a promising platform for tissue-device integration, health monitoring, and an array of bioelectronic applications.
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Affiliation(s)
- Hude Ma
- Jiangxi Key Lab of Flexible Electronics, Flexible Electronics Innovation Institute, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Jingdan Hou
- Jiangxi Key Lab of Flexible Electronics, Flexible Electronics Innovation Institute, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Xiao Xiao
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Rongtai Wan
- Jiangxi Key Lab of Flexible Electronics, Flexible Electronics Innovation Institute, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Gang Ge
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | | | - Chen Chen
- State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jie Cao
- Jiangxi Key Lab of Flexible Electronics, Flexible Electronics Innovation Institute, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Jinye Wang
- Liaocheng Ecological Environment Monitoring Centre of Shandong Province, Liaocheng 252000, Shandong, China
| | - Chang Liu
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Qi Zhao
- Jiangxi Key Lab of Flexible Electronics, Flexible Electronics Innovation Institute, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Zhilin Zhang
- Jiangxi Key Lab of Flexible Electronics, Flexible Electronics Innovation Institute, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Peng Jiang
- Xi'an Physical Education University, Xi'an 710068, Shaanxi, China
| | - Shuai Chen
- Jiangxi Key Lab of Flexible Electronics, Flexible Electronics Innovation Institute, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Wenhui Xiong
- Jiangxi Key Lab of Flexible Electronics, Flexible Electronics Innovation Institute, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Jingkun Xu
- Jiangxi Key Lab of Flexible Electronics, Flexible Electronics Innovation Institute, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; School of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
| | - Baoyang Lu
- Jiangxi Key Lab of Flexible Electronics, Flexible Electronics Innovation Institute, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China.
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25
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Zhuo S, Liang Y, Wu Z, Zhao X, Han Y, Guo B. Supramolecular hydrogels for wound repair and hemostasis. MATERIALS HORIZONS 2024; 11:37-101. [PMID: 38018225 DOI: 10.1039/d3mh01403g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
The unique network characteristics and stimuli responsiveness of supramolecular hydrogels have rendered them highly advantageous in the field of wound dressings, showcasing unprecedented potential. However, there are few reports on a comprehensive review of supramolecular hydrogel dressings for wound repair and hemostasis. This review first introduces the major cross-linking methods for supramolecular hydrogels, which includes hydrogen bonding, electrostatic interactions, hydrophobic interactions, host-guest interactions, metal ligand coordination and some other interactions. Then, we review the advanced materials reported in recent years and then summarize the basic principles of each cross-linking method. Next, we classify the network structures of supramolecular hydrogels before outlining their forming process and propose their potential future directions. Furthermore, we also discuss the raw materials, structural design principles, and material characteristics used to achieve the advanced functions of supramolecular hydrogels, such as antibacterial function, tissue adhesion, substance delivery, anti-inflammatory and antioxidant functions, cell behavior regulation, angiogenesis promotion, hemostasis and other innovative functions in recent years. Finally, the existing problems as well as future development directions of the cross-linking strategy, network design, and functions in wound repair and hemostasis of supramolecular hydrogels are discussed. This review is proposed to stimulate further exploration of supramolecular hydrogels on wound repair and hemostasis by researchers in the future.
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Affiliation(s)
- Shaowen Zhuo
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Yongping Liang
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Zhengying Wu
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Xin Zhao
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Yong Han
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Baolin Guo
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710049, China
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26
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Chu H, Xue J, Yang Y, Zheng H, Luo D, Li Z. Advances of Smart Stimulus-Responsive Microneedles in Cancer Treatment. SMALL METHODS 2023:e2301455. [PMID: 38148309 DOI: 10.1002/smtd.202301455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 12/09/2023] [Indexed: 12/28/2023]
Abstract
Microneedles (MNs) have emerged as a highly promising technology for delivering drugs via the skin. They provide several benefits, including high drug bioavailability, non-invasiveness, painlessness, and high safety. Traditional strategies for intravenous delivery of anti-tumor drugs have risks of systemic toxicity and easy development of drug resistance, while MN technology facilitates precise delivery and on-demand release of drugs in local tissues. In addition, by further combining with stimulus-responsive materials, the construction of smart stimulus-responsive MNs can be achieved, which can respond to specific physical/chemical stimuli from the internal or external environment, thereby further improving the accuracy of tumor treatment and reducing toxicity to surrounding tissues/cells. This review systematically summarizes the classification, materials, and reaction mechanisms of stimulus-responsive MNs, outlines the benefits and challenges of various types of MNs, and details their application and latest progress in cancer treatment. Finally, the development prospects of smart MNs in tumor treatment are also discussed, bringing inspiration for future precision treatment of tumors.
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Affiliation(s)
- Huaqing Chu
- Department of Anesthesiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, China
| | - Jiangtao Xue
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, China
- School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
| | - Yuan Yang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Hui Zheng
- Department of Anesthesiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Dan Luo
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, China
| | - Zhou Li
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, China
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27
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Nakipoglu M, Tezcaner A, Contag CH, Annabi N, Ashammakhi N. Bioadhesives with Antimicrobial Properties. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300840. [PMID: 37269168 DOI: 10.1002/adma.202300840] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/10/2023] [Indexed: 06/04/2023]
Abstract
Bioadhesives with antimicrobial properties enable easier and safer treatment of wounds as compared to the traditional methods such as suturing and stapling. Composed of natural or synthetic polymers, these bioadhesives seal wounds and facilitate healing while preventing infections through the activity of locally released antimicrobial drugs, nanocomponents, or inherently antimicrobial polers. Although many different materials and strategies are employed to develop antimicrobial bioadhesives, the design of these biomaterials necessitates a prudent approach as achieving all the required properties including optimal adhesive and cohesive properties, biocompatibility, and antimicrobial activity can be challenging. Designing antimicrobial bioadhesives with tunable physical, chemical, and biological properties will shed light on the path for future advancement of bioadhesives with antimicrobial properties. In this review, the requirements and commonly used strategies for developing bioadhesives with antimicrobial properties are discussed. In particular, different methods for their synthesis and their experimental and clinical applications on a variety of organs are reviewed. Advances in the design of bioadhesives with antimicrobial properties will pave the way for a better management of wounds to increase positive clinical outcomes.
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Affiliation(s)
- Mustafa Nakipoglu
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Engineering Sciences, School of Natural and Applied Sciences, Middle East Technical University, Ankara, 06800, Turkey
- Department of Molecular Biology and Genetics, Faculty of Sciences, Bartin University, Bartin, 74000, Turkey
| | - Ayşen Tezcaner
- Department of Engineering Sciences, School of Natural and Applied Sciences, Middle East Technical University, Ankara, 06800, Turkey
- BIOMATEN, CoE in Biomaterials & Tissue Engineering, Middle East Technical University, Ankara, 06800, Turkey
| | - Christopher H Contag
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI, 48824, USA
- Department of Biomedical Engineering, College of Engineering, Michigan State University, East Lansing, MI, 48824, USA
| | - Nasim Annabi
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Nureddin Ashammakhi
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI, 48824, USA
- Department of Biomedical Engineering, College of Engineering, Michigan State University, East Lansing, MI, 48824, USA
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
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28
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Wu J, Ma Q, Pang Q, Hu S, Wan Z, Peng X, Cheng X, Geng L. Constructing triple-network cellulose nanofiber hydrogels with excellent strength, toughness and conductivity for real-time monitoring of human movements. Carbohydr Polym 2023; 321:121282. [PMID: 37739523 DOI: 10.1016/j.carbpol.2023.121282] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 07/17/2023] [Accepted: 08/08/2023] [Indexed: 09/24/2023]
Abstract
In recent years, there has been a lot of interest in developing composite hydrogels with superior mechanical and conductive properties. In this study, triple-network (TN) cellulose nanofiber hydrogels were prepared by using cellulose nanofiber as the first network, isotropic poly(acrylamide-co-acrylic acid) as the second network, and polyvinyl alcohol as the third network via a cyclic freezing-thawing process. The strong (9.43 ± 0.14 MPa tensile strength, (445.5 ± 7.0)% elongation-at-break), tough (15.12 ± 0.14 MJ/m3 toughness), and conductive (0.0297 ± 0.00021 S/cm ionic conductivity) TN cellulose nanofiber hydrogels were effectively created after being pre-stretched in an external force field, cross-linked by Fe3+ and added Li+. The produced composite TN cellulose nanofiber hydrogels were successfully used as a flexible sensor for real-time monitoring and detecting human movements, highlighting their potential for wearable electronics, medical technology, and human-machine interaction. CHEMICAL COMPOUNDS STUDIED IN THIS ARTICLE: Acrylamide (PubChem CID: 6579); Acrylic acid (PubChem CID: 6581); Ammonium persulfate (PubChem CID: 6579); N, N'-methylene bisacrylamide (PubChem CID: 17956053); Sodium bromide (PubChem CID: 253881); Sodium hydroxide (PubChem CID: 14798); Sodium hypochlorite (PubChem CID: 23665760); Sodium chlorite (PubChem CID: 23668197); 2,2,6,6-tetramethylpiperidinyl-1-oxide (PubChem CID: 2724126); Polyvinyl alcohol (PubChem CID: 11199); Lithium chloride (PubChem CID: 433294); Iron nitrate nonahydrate (PubChem CID: 129774236).
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Affiliation(s)
- Jianming Wu
- Key Laboratory of Polymer Materials and Products of Universities in Fujian, Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China.
| | - Qian Ma
- Key Laboratory of Polymer Materials and Products of Universities in Fujian, Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Qingkai Pang
- Key Laboratory of Polymer Materials and Products of Universities in Fujian, Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Shuaishuai Hu
- Key Laboratory of Polymer Materials and Products of Universities in Fujian, Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Zhihao Wan
- Key Laboratory of Polymer Materials and Products of Universities in Fujian, Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Xiangfang Peng
- Key Laboratory of Polymer Materials and Products of Universities in Fujian, Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China
| | - Xi Cheng
- National Mold Product Quality Supervision and Inspection Center, Guangdong Dongguan Quality Supervision Testing Center, Dongguan, Guangdong 523808, China.
| | - Lihong Geng
- Key Laboratory of Polymer Materials and Products of Universities in Fujian, Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350118, China.
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29
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Jeong HB, Kim C, Lee A, Kim HY. Sequential Multimodal Morphing of Single-Input Pneu-Nets. Soft Robot 2023; 10:1137-1145. [PMID: 37335938 DOI: 10.1089/soro.2022.0216] [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: 06/21/2023] Open
Abstract
Soft actuators provide an attractive means for locomotion, gripping, and deployment of those machines and robots used in biomedicine, wearable electronics, automated manufacturing, etc. In this study, we focus on the shape-morphing ability of soft actuators made of pneumatic networks (pneu-nets), which are easy to fabricate with inexpensive elastomers and to drive with air pressure. As a conventional pneumatic network system morphs into a single designated state, achieving multimodal morphing has required multiple air inputs, channels, and chambers, making the system highly complex and hard to control. In this study, we develop a pneu-net system that can change its shape into multiple forms as a single input pressure increases. We achieve this single-input and multimorphing by combining pneu-net modules of different materials and geometry, while harnessing the strain-hardening characteristics of elastomers to prevent overinflation. Using theoretical models, we not only predict the shape evolution of pneu-nets with pressure change but also design pneu-nets to sequentially bend, stretch, and twist at distinct pressure points. We show that our design strategy enables a single device to carry out multiple functions, such as grabbing-turning a light bulb and holding-lifting a jar.
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Affiliation(s)
- Han Bi Jeong
- Department of Mechanical Engineering, Seoul National University, Seoul, South Korea
| | - Cheongsan Kim
- Department of Mechanical Engineering, Seoul National University, Seoul, South Korea
| | - Anna Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, South Korea
| | - Ho-Young Kim
- Department of Mechanical Engineering, Seoul National University, Seoul, South Korea
- Seoul National University Institute of Advanced Machines and Design, Seoul, South Korea
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30
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Zhang Y, Li S, Gao Z, Bi D, Qu N, Huang S, Zhao X, Li R. Highly conductive and tough polyacrylamide/sodium alginate hydrogel with uniformly distributed polypyrrole nanospheres for wearable strain sensors. Carbohydr Polym 2023; 315:120953. [PMID: 37230609 DOI: 10.1016/j.carbpol.2023.120953] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 04/17/2023] [Accepted: 04/23/2023] [Indexed: 05/27/2023]
Abstract
Conductive hydrogels have attracted widespread attention because of their integrated characteristics of being stretchable, deformable, adhesive, self-healable, and conductive. Herein, we report a highly conductive and tough double-network hydrogel based on a double cross-linked polyacrylamide (PAAM) and sodium alginate (SA) network with conducting polypyrrole nanospheres (PPy NSs) uniformly distributed in the network (PAAM-SA-PPy NSs). SA was employed as a soft template for synthesis of PPy NSs and distribution of PPy NSs uniformly in the hydrogel matrix to construct SA-PPy conductive network. The PAAM-SA-PPy NS hydrogel exhibited both high electrical conductivity (6.44 S/m) and excellent mechanical properties (tensile strength of 560 kPa at 870 %), as along as high toughness, high biocompatibility, good self-healing and adhesion properties. The assembled strain sensors showed high sensitivity and a wide sensing range (a gauge factor of 1.89 for 0-400 % strain and 4.53 for 400-800 % strain, respectively), as well as fast responsiveness and reliable stability. When used as a wearable strain sensor, it was able to monitor a series of physical signals from human large-scale joint motions and subtle muscle movements. This work provides a new strategy for the development of electronic skins and flexible strain sensors.
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Affiliation(s)
- Yansong Zhang
- National & local joint engineering research center for Textile Fiber Materials and Processing Technology, School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Shuo Li
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Zhongda Gao
- National & local joint engineering research center for Textile Fiber Materials and Processing Technology, School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Dejin Bi
- National & local joint engineering research center for Textile Fiber Materials and Processing Technology, School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Na Qu
- National & local joint engineering research center for Textile Fiber Materials and Processing Technology, School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Sanqing Huang
- National & local joint engineering research center for Textile Fiber Materials and Processing Technology, School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
| | - Xueqin Zhao
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
| | - Renhong Li
- National & local joint engineering research center for Textile Fiber Materials and Processing Technology, School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
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31
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Zhang J, Liang Y, Deng Z, Xu H, Zhang H, Guo B, Zhang J. Adhesive Ion-Conducting Hydrogel Strain Sensor with High Sensitivity, Long-Term Stability, and Extreme Temperature Tolerance. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37319345 DOI: 10.1021/acsami.3c03624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Ion-conducting hydrogels with excellent flexibility and ductility have great potential in human movements monitoring. However, some obstacles, including a small detection range, low sensitivity, low electrical conductivity, and poor stability under extreme conditions, impede their use as sensors. Herein, an ion-conducting hydrogel comprising acrylamide (AM), lauryl methacrylate (LMA), 2-acrylamido-2-methylpropanesulfonic acid (AMPS), and a water/glycerol binary solvent (named the AM-LMA-AMPS-LiCl (water/glycerol) hydrogel) is designed, which exhibits an enlarged detection range of 0%-1823% and improved transparency. Notably, the ion channel constructed using AMPS and LiCl significantly improves the sensitivity (gauge factor = 22.15 ± 2.86) of the hydrogel. The water/glycerol binary solvent endows the hydrogel with electrical and mechanical stability under extreme conditions (70 and -80 °C). Furthermore, the AM-LMA-AMPS-LiCl (water/glycerol) hydrogel exhibits antifatigue properties for 10 cycles (0%-1000%) because of noncovalent interactions such as hydrophobic interactions and hydrogen bonding. The hydrogel can be used to monitor human movements such as joint bending and perceive subtle discrepancies such as different joint bending speeds and angles, showing its great potential application in human movement monitoring, electronic skin, and wearable devices.
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Affiliation(s)
- Jiaodi Zhang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yuqing Liang
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Zexing Deng
- College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Huiru Xu
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Hualei Zhang
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Baolin Guo
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
- State Key Laboratory for Mechanical Behavior of Materials, and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jie Zhang
- Institute of Preventive Medicine, Fourth Military Medical University, Xi'an 710032, China
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32
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Mohammed AA, Li S, Sang T, Jones JR, Pinna A. Nanocomposite Hydrogels with Polymer Grafted Silica Nanoparticles, Using Glucose Oxidase. Gels 2023; 9:486. [PMID: 37367156 PMCID: PMC10298067 DOI: 10.3390/gels9060486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 06/28/2023] Open
Abstract
Nanocomposite hydrogels offer remarkable potential for applications in bone tissue engineering. They are synthesized through the chemical or physical crosslinking of polymers and nanomaterials, allowing for the enhancement of their behaviour by modifying the properties and compositions of the nanomaterials involved. However, their mechanical properties require further enhancement to meet the demands of bone tissue engineering. Here, we present an approach to improve the mechanical properties of nanocomposite hydrogels by incorporating polymer grafted silica nanoparticles into a double network inspired hydrogel (gSNP Gels). The gSNP Gels were synthesised via a graft polymerization process using a redox initiator. gSNP Gels were formed by grafting 2-acrylamido-2-methylpropanesulfonic acid (AMPS) as the first network gel followed by a sequential second network acrylamide (AAm) onto amine functionalized silica nanoparticles (ASNPs). We utilized glucose oxidase (GOx) to create an oxygen-free atmosphere during polymerization, resulting in higher polymer conversion compared to argon degassing. The gSNP Gels showed excellent compressive strengths of 13.9 ± 5.5 MPa, a strain of 69.6 ± 6.4%, and a water content of 63.4% ± 1.8. The synthesis technique demonstrates a promising approach to enhance the mechanical properties of hydrogels, which can have significant implications for bone tissue engineering and other soft tissue applications.
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Affiliation(s)
- Ali A. Mohammed
- Dyson School of Design Engineering, Imperial College London, London SW7 9EG, UK;
- Department of Materials, Imperial College London, London SW7 2AZ, UK; (S.L.); (T.S.); (J.R.J.)
| | - Siwei Li
- Department of Materials, Imperial College London, London SW7 2AZ, UK; (S.L.); (T.S.); (J.R.J.)
| | - Tian Sang
- Department of Materials, Imperial College London, London SW7 2AZ, UK; (S.L.); (T.S.); (J.R.J.)
| | - Julian R. Jones
- Department of Materials, Imperial College London, London SW7 2AZ, UK; (S.L.); (T.S.); (J.R.J.)
| | - Alessandra Pinna
- Department of Materials, Imperial College London, London SW7 2AZ, UK; (S.L.); (T.S.); (J.R.J.)
- The Francis Crick Institute, London NW1 1AT, UK
- School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, London GU2 7XH, UK
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33
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Shen K, Liu Z, Xie R, Zhang Y, Yang Y, Zhao X, Zhang Y, Yang A, Cheng Y. Nanocomposite conductive hydrogels with Robust elasticity and multifunctional responsiveness for flexible sensing and wound monitoring. MATERIALS HORIZONS 2023; 10:2096-2108. [PMID: 36939051 DOI: 10.1039/d3mh00192j] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Flexible biosensors made from conductive hydrogels have shown tremendous potential in health management and human-machine interfaces. Nevertheless, it remains challenging to fabricate conductive hydrogels with robust resilience and long-term stability. Herein, we report a nanocomposite conductive hydrogel prepared through one-pot radical polymerization of 3-acrylamidophenylboronic acid (APBA) and acrylamide (AM) in the presence of LAPONITE® XLG nanosheet (XLG) stabilized carbon nanotubes (CNTs). Owing to the existence of various non-covalent interactions within the network (B-N coordination, hydrogen bond, and polymer chain entanglement), the hydrogels feature splendid mechanical properties with a tensile strength of 252-323 kPa, fracture strain of 880-1200%, Young's modulus of 48-50 kPa and fracture energy of 911-1078 J m-2, and exhibit robust elasticity and fatigue resistance during 1000 consecutive tensile and compressive cycles. The hydrogels show remarkable sensing performances (gauge factor up to 9.43) and a broad sensing range of strain (1-300%) and pressure (1-80 kPa), enabling reliable and accurate monitoring of large and tiny motions in daily human life. Moreover, the conductive hydrogels could not only accelerate skin incision healing but also act as smart wearable sensors to monitor the skin wound healing process by detection of local temperature changes.
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Affiliation(s)
- Kaixiang Shen
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Zheng Liu
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Ruilin Xie
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Yuchen Zhang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yuxuan Yang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiaodan Zhao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yanfeng Zhang
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Aimin Yang
- Department of Nuclear Medicine, the First Affiliated Hospital of China, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yilong Cheng
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
- Department of Nuclear Medicine, the First Affiliated Hospital of China, Xi'an Jiaotong University, Xi'an 710049, China
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34
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Li X, Jiang L, Yan M, Bi H, Wang Q. Highly stretchable, tough and conductive chitin nanofiber composite hydrogel as a wearable sensor. Int J Biol Macromol 2023; 242:124780. [PMID: 37172700 DOI: 10.1016/j.ijbiomac.2023.124780] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/21/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023]
Abstract
To meet the requirements of eco-friendly and sustainability in the 21st century, hydrogels based on biopolymer with conductivity and stretchable property have attained increasing attention for strain sensor. However, the as-prepared of hydrogel sensor with excellent mechanical property and high strain sensitivity is still a challenge. In this study, chitin nanofiber (ChNF) reinforced composite hydrogels of PACF are fabricated via a facile one-pot method. The obtained PACF composite hydrogel exhibits good transparency (80.6 % at 800 nm)and excellent mechanical properties (tensile strength, 261.2 kPa; tensile strain as high as 550.3 %). Moreover, the composite hydrogels also demonstrate excellent anti-compression performance. The composite hydrogels own good conductivity (1.20 S/m) and strain sensitivity. Most importantly, the hydrogel can be assembled as a strain/pressure sensor for detecting large-scale and small-scale human motion. Therefore, flexible conductive hydrogel strain sensors will have broad application prospects in artificial intelligence, electronic skin, and personal health.
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Affiliation(s)
- Xiaomeng Li
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Lei Jiang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Manqing Yan
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Hong Bi
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China
| | - Qiyang Wang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China.
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35
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Zhu Y, Haghniaz R, Hartel MC, Mou L, Tian X, Garrido PR, Wu Z, Hao T, Guan S, Ahadian S, Kim HJ, Jucaud V, Dokmeci MR, Khademhosseini A. Recent Advances in Bioinspired Hydrogels: Materials, Devices, and Biosignal Computing. ACS Biomater Sci Eng 2023; 9:2048-2069. [PMID: 34784170 PMCID: PMC10823919 DOI: 10.1021/acsbiomaterials.1c00741] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The remarkable ability of biological systems to sense and adapt to complex environmental conditions has inspired new materials and novel designs for next-generation wearable devices. Hydrogels are being intensively investigated for their versatile functions in wearable devices due to their superior softness, biocompatibility, and rapid stimulus response. This review focuses on recent strategies for developing bioinspired hydrogel wearable devices that can accommodate mechanical strain and integrate seamlessly with biological systems. We will provide an overview of different types of bioinspired hydrogels tailored for wearable devices. Next, we will discuss the recent progress of bioinspired hydrogel wearable devices such as electronic skin and smart contact lenses. Also, we will comprehensively summarize biosignal readout methods for hydrogel wearable devices as well as advances in powering and wireless data transmission technologies. Finally, current challenges facing these wearable devices are discussed, and future directions are proposed.
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Affiliation(s)
- Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Reihaneh Haghniaz
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Martin C Hartel
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, California 90095, United States
| | - Lei Mou
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Xinyu Tian
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Pamela Rosario Garrido
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
- Department of Electric and Electronic Engineering, Technological Institute of Merida, Merida, Yucatan 97118, Mexico
| | - Zhuohong Wu
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Taige Hao
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Shenghan Guan
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089, United States
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Han-Jun Kim
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Vadim Jucaud
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Mehmet R Dokmeci
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
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36
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Wang Q, Wang X, Feng Y. Chitosan Hydrogel as Tissue Engineering Scaffolds for Vascular Regeneration Applications. Gels 2023; 9:gels9050373. [PMID: 37232967 DOI: 10.3390/gels9050373] [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: 03/29/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/27/2023] Open
Abstract
Chitosan hydrogels have a wide range of applications in tissue engineering scaffolds, mainly due to the advantages of their chemical and physical properties. This review focuses on the application of chitosan hydrogels in tissue engineering scaffolds for vascular regeneration. We have mainly introduced these following aspects: advantages and progress of chitosan hydrogels in vascular regeneration hydrogels and the modification of chitosan hydrogels to improve the application in vascular regeneration. Finally, this paper discusses the prospects of chitosan hydrogels for vascular regeneration.
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Affiliation(s)
- Qiulin Wang
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Weijin Road 92, Tianjin 300072, China
| | - Xiaoyu Wang
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Weijin Road 92, Tianjin 300072, China
| | - Yakai Feng
- School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin), Weijin Road 92, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Weijin Road 92, Tianjin 300072, China
- Frontiers Science Center for Synthetic Biology, Tianjin University, Weijin Road 92, Tianjin 300072, China
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37
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Hu L, Chee PL, Sugiarto S, Yu Y, Shi C, Yan R, Yao Z, Shi X, Zhi J, Kai D, Yu HD, Huang W. Hydrogel-Based Flexible Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2205326. [PMID: 36037508 DOI: 10.1002/adma.202205326] [Citation(s) in RCA: 100] [Impact Index Per Article: 100.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/09/2022] [Indexed: 06/15/2023]
Abstract
Flexible electronics is an emerging field of research involving multiple disciplines, which include but not limited to physics, chemistry, materials science, electronic engineering, and biology. However, the broad applications of flexible electronics are still restricted due to several limitations, including high Young's modulus, poor biocompatibility, and poor responsiveness. Innovative materials aiming for overcoming these drawbacks and boost its practical application is highly desirable. Hydrogel is a class of 3D crosslinked hydrated polymer networks, and its exceptional material properties render it as a promising candidate for the next generation of flexible electronics. Here, the latest methods of synthesizing advanced functional hydrogels and the state-of-art applications of hydrogel-based flexible electronics in various fields are reviewed. More importantly, the correlation between properties of the hydrogel and device performance is discussed here, to have better understanding of the development of flexible electronics by using environmentally responsive hydrogels. Last, perspectives on the current challenges and future directions in the development of hydrogel-based multifunctional flexible electronics are provided.
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Affiliation(s)
- Lixuan Hu
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Pei Lin Chee
- Institute of Materials Research and Engineering (IMRE), A∗STAR, 2 Fusionopolis Way, Innovis, No. 08-03, Singapore, 138634, Singapore
| | - Sigit Sugiarto
- Institute of Materials Research and Engineering (IMRE), A∗STAR, 2 Fusionopolis Way, Innovis, No. 08-03, Singapore, 138634, Singapore
| | - Yong Yu
- Institute of Materials Research and Engineering (IMRE), A∗STAR, 2 Fusionopolis Way, Innovis, No. 08-03, Singapore, 138634, Singapore
| | - Chuanqian Shi
- School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai, 200092, P. R. China
| | - Ren Yan
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Zhuoqi Yao
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Xuewen Shi
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Jiacai Zhi
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Dan Kai
- Institute of Materials Research and Engineering (IMRE), A∗STAR, 2 Fusionopolis Way, Innovis, No. 08-03, Singapore, 138634, Singapore
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), A∗STAR, 2 Fusionopolis Way, Innovis, No. 08-03, Singapore, 138634, Singapore
| | - Hai-Dong Yu
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, 710072, P. R. China
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38
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Clement N, Kandasubramanian B. 3D Printed Ionogels In Sensors. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2126784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- Navya Clement
- Polymer Science, CIPET: Institute of Petrochemical Technology (IPT), HIL Colony, Edayar Road, Pathalam, Eloor, Udyogmandal P.O, Kochi 683501, India
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39
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Kaliaraj GS, Shanmugam DK, Dasan A, Mosas KKA. Hydrogels-A Promising Materials for 3D Printing Technology. Gels 2023; 9:gels9030260. [PMID: 36975708 PMCID: PMC10048566 DOI: 10.3390/gels9030260] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/15/2023] [Accepted: 03/20/2023] [Indexed: 03/29/2023] Open
Abstract
Hydrogels are a promising material for a variety of applications after appropriate functional and structural design, which alters the physicochemical properties and cell signaling pathways of the hydrogels. Over the past few decades, considerable scientific research has made breakthroughs in a variety of applications such as pharmaceuticals, biotechnology, agriculture, biosensors, bioseparation, defense, and cosmetics. In the present review, different classifications of hydrogels and their limitations have been discussed. In addition, techniques involved in improving the physical, mechanical, and biological properties of hydrogels by admixing various organic and inorganic materials are explored. Future 3D printing technology will substantially advance the ability to pattern molecules, cells, and organs. With significant potential for producing living tissue structures or organs, hydrogels can successfully print mammalian cells and retain their functionalities. Furthermore, recent advances in functional hydrogels such as photo- and pH-responsive hydrogels and drug-delivery hydrogels are discussed in detail for biomedical applications.
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Affiliation(s)
- Gobi Saravanan Kaliaraj
- Centre for Nanoscience and Nanotechnology, Sathyabama Institute of Science and Technology, Chennai 600 119, India
| | - Dilip Kumar Shanmugam
- Centre for Nanoscience and Nanotechnology, Sathyabama Institute of Science and Technology, Chennai 600 119, India
| | - Arish Dasan
- FunGlass-Centre for Functional and Surface Functionalised Glass, Alexander Dubcek University of Trencin, 91150 Trencin, Slovakia
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40
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Kougkolos G, Golzio M, Laudebat L, Valdez-Nava Z, Flahaut E. Hydrogels with electrically conductive nanomaterials for biomedical applications. J Mater Chem B 2023; 11:2036-2062. [PMID: 36789648 DOI: 10.1039/d2tb02019j] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Hydrogels, soft 3D materials of cross-linked hydrophilic polymer chains with a high water content, have found numerous applications in biomedicine because of their similarity to native tissue, biocompatibility and tuneable properties. In general, hydrogels are poor conductors of electric current, due to the insulating nature of commonly-used hydrophilic polymer chains. A number of biomedical applications require or benefit from an increased electrical conductivity. These include hydrogels used as scaffolds for tissue engineering of electroactive cells, as strain-sensitive sensors and as platforms for controlled drug delivery. The incorporation of conductive nanomaterials in hydrogels results in nanocomposite materials which combine electrical conductivity with the soft nature, flexibility and high water content of hydrogels. Here, we review the state of the art of such materials, describing the theories of current conduction in nanocomposite hydrogels, outlining their limitations and highlighting methods for improving their electrical conductivity.
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Affiliation(s)
- Georgios Kougkolos
- CIRIMAT, Université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse CEDEX 9, France. .,LAPLACE, Université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse CEDEX 9, France.
| | - Muriel Golzio
- IPBS, Université de Toulouse, NRS UMR, UPS, 31077 Toulouse CEDEX 4, France
| | - Lionel Laudebat
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse CEDEX 9, France. .,INU Champollion, Université de Toulouse, 81012 Albi, France
| | - Zarel Valdez-Nava
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse CEDEX 9, France.
| | - Emmanuel Flahaut
- CIRIMAT, Université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse CEDEX 9, France.
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41
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Shin W, Chung K. Preparation and Characterization of Poly(Acrylic Acid)-Based Self-Healing Hydrogel for 3D Shape Fabrication via Extrusion-Based 3D Printing. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2085. [PMID: 36903203 PMCID: PMC10004586 DOI: 10.3390/ma16052085] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
The three-dimensional (3D) printing of hydrogel is an issue of interest in various applications to build optimized 3D structured devices beyond 2D-shaped conventional structures such as film or mesh. The materials design for the hydrogel, as well as the resulting rheological properties, largely affect its applicability in extrusion-based 3D printing. Here, we prepared a new poly(acrylic acid)-based self-healing hydrogel by controlling the hydrogel design factors based on a defined material design window in terms of rheological properties for application in extrusion-based 3D printing. The hydrogel is designed with a poly(acrylic acid) main chain with a 1.0 mol% covalent crosslinker and 2.0 mol% dynamic crosslinker, and is successfully prepared based on radical polymerization utilizing ammonium persulfate as a thermal initiator. With the prepared poly(acrylic acid)-based hydrogel, self-healing characteristics, rheological characteristics, and 3D printing applicability are deeply investigated. The hydrogel spontaneously heals mechanical damage within 30 min and exhibits appropriate rheological characteristics, including G'~1075 Pa and tan δ~0.12, for extrusion-based 3D printing. Upon application in 3D printing, various 3D structures of hydrogel were successfully fabricated without showing structural deformation during the 3D printing process. Furthermore, the 3D-printed hydrogel structures exhibited excellent dimensional accuracy of the printed shape compared to the designed 3D structure.
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Affiliation(s)
- Woohyeon Shin
- Department of Biofibers and Biomaterials Science, Kyungpook National University, Daegu 41566, Republic of Korea
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Kyeongwoon Chung
- Department of Biofibers and Biomaterials Science, Kyungpook National University, Daegu 41566, Republic of Korea
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42
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Seong M, Kondaveeti S, Choi G, Kim S, Kim J, Kang M, Jeong HE. 3D Printable Self-Adhesive and Self-Healing Ionotronic Hydrogels for Wearable Healthcare Devices. ACS APPLIED MATERIALS & INTERFACES 2023; 15:11042-11052. [PMID: 36788742 DOI: 10.1021/acsami.2c21704] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Ionotronic hydrogels have attracted significant attention in emerging fields such as wearable devices, flexible electronics, and energy devices. To date, the design of multifunctional ionotronic hydrogels with strong interfacial adhesion, rapid self-healing, three-dimensional (3D) printing processability, and high conductivity are key requirements for future wearable devices. Herein, we report the rational design and facile synthesis of 3D printable, self-adhesive, self-healing, and conductive ionotronic hydrogels based on the synergistic dual reversible interactions of poly(vinyl alcohol), borax, pectin, and tannic acid. Multifunctional ionotronic hydrogels exhibit strong adhesion to various substrates with different roughness and chemical components, including porcine skin, glass, nitrile gloves, and plastics (normal adhesion strength of 55 kPa on the skin). In addition, the ionotronic hydrogels exhibit intrinsic ionic conductivity imparting strain-sensing properties with a gauge factor of 2.5 up to a wide detection range of approximately 2000%, as well as improved self-healing behavior. Based on these multifunctional properties, we further demonstrate the use of ionotronic hydrogels in the 3D printing process for implementing complex patterns as wearable strain sensors for human motion detection. This study is expected to provide a new avenue for the design of multifunctional ionotronic hydrogels, enabling their potential applications in wearable healthcare devices.
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Affiliation(s)
- Minho Seong
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Stalin Kondaveeti
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Geonjun Choi
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Somi Kim
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jaeil Kim
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Minsu Kang
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Hoon Eui Jeong
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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Patel DK, Ganguly K, Dutta SD, Patil TV, Randhawa A, Lim KT. Highly stretchable, adhesive, and biocompatible hydrogel platforms of tannic acid functionalized spherical nanocellulose for strain sensors. Int J Biol Macromol 2023; 229:105-122. [PMID: 36587632 DOI: 10.1016/j.ijbiomac.2022.12.286] [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: 08/31/2022] [Revised: 12/16/2022] [Accepted: 12/25/2022] [Indexed: 12/30/2022]
Abstract
The development of multifunctional wearable electronic devices has received considerable attention because of their attractive applications. However, integrating multifunctional abilities into one component remains a challenge. To address this, we have developed a tannic acid-functionalized spherical nanocellulose/polyvinyl alcohol composite hydrogel using borax as a crosslinking agent for strain-sensing applications. The hydrogel demonstrates improved mechanical and recovery strengths and maintains its mechanical strength under freezing conditions. The hydrogels show ultra-stretching, adhesive, self-healing, and conductive properties, making them ideal candidates for developing strain-based wearable devices. The hydrogel exhibits good sensitivity with a 4.75 gauge factor. The cytotoxicity of the developed hydrogels was monitored with human dermal fibroblast cells by WST-8 assay in vitro. The antibacterial potential of the hydrogels was evaluated using Escherichia coli. The hydrogels demonstrate enhanced antibacterial ability than the control. Therefore, the developed multifunctional hydrogels with desirable properties are promising platforms for strain sensor devices.
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Affiliation(s)
- Dinesh K Patel
- Department of Biosystems Engineering, Institute of Forest Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Keya Ganguly
- Department of Biosystems Engineering, Institute of Forest Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sayan Deb Dutta
- Department of Biosystems Engineering, Institute of Forest Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Tejal V Patil
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Aayushi Randhawa
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Ki-Taek Lim
- Department of Biosystems Engineering, Institute of Forest Science, Kangwon National University, Chuncheon 24341, Republic of Korea; Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Republic of Korea.
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Chen PW, Ji DH, Zhang YS, Lee C, Yeh MY. Electroactive and Stretchable Hydrogels of 3,4-Ethylenedioxythiophene/thiophene Copolymers. ACS OMEGA 2023; 8:6753-6761. [PMID: 36844572 PMCID: PMC9948203 DOI: 10.1021/acsomega.2c07368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
Hydrogels are conductive and stretchable, allowing for their use in flexible electronic devices, such as electronic skins, sensors, human motion monitoring, brain-computer interface, and so on. Herein, we synthesized the copolymers having various molar ratios of 3,4-ethylenedioxythiophene (EDOT) to thiophene (Th), which served as conductive additives. With doping engineering and incorporation with P(EDOT-co-Th) copolymers, hydrogels have presented excellent physical/chemical/electrical properties. It was found that the mechanical strength, adhesion ability, and conductivity of hydrogels were highly dependent on the molar ratio of EDOT to Th of the copolymers. The more the EDOT, the stronger the tensile strength and the greater the conductivity, but the lower the elongation break tends to be. By comprehensively evaluating the physical/chemical/electrical properties and cost of material use, the hydrogel incorporated with a 7:3 molar ratio P(EDOT-co-Th) copolymer was an optimal formulation for soft electronic devices.
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Ciarleglio G, Toto E, Santonicola MG. Conductive and Thermo-Responsive Composite Hydrogels with Poly(N-isopropylacrylamide) and Carbon Nanotubes Fabricated by Two-Step Photopolymerization. Polymers (Basel) 2023; 15:polym15041022. [PMID: 36850305 PMCID: PMC9962410 DOI: 10.3390/polym15041022] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/04/2023] [Accepted: 02/07/2023] [Indexed: 02/22/2023] Open
Abstract
Biocompatible and conductive polymer hydrogels are the subject of intensive research in the bioengineering field because of their use in bioelectronic devices and for the fabrication of electro-responsive tissues and drug delivery systems. In this study, we report the synthesis of conductive composite hydrogels consisting of a poly(N-isopropylacrylamide) (PNIPAM) matrix embedding carboxyl-functionalized multi-walled carbon nanotubes (MWCNT-COOH) using a two-step photopolymerization method. Thermo-responsive hydrogels with controlled hydrophilicity and conductivity were prepared by varying the carbon nanotube concentration in the range 0.5-3 wt%. The thermal response of the PNIPAM-based composite hydrogels was measured by differential scanning calorimetry with both ultrapure water and PBS solution as swelling liquid. Results show that the endothermic peak associated with the temperature-induced volume phase transition (VPT) shifts to higher temperatures upon increasing the concentration of the nanotubes, indicating that more energy is required to dissociate the hydrogen bonds of the polymer/filler network. In PBS solution, the swelling ratios and the VPT temperatures of the composite hydrogels are reduced because of salt-induced screening of the oppositely charged polymer/filler assembly, and the electrical resistivity decreases by a factor of 10 with respect to the water-swollen hydrogels.
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Li W, Guan Q, Li M, Saiz E, Hou X. Nature's strategy to construct tough responsive hydrogel actuators and their applications. Prog Polym Sci 2023. [DOI: 10.1016/j.progpolymsci.2023.101665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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Tripathi S, Mandal SS, Bauri S, Maiti P. 3D bioprinting and its innovative approach for biomedical applications. MedComm (Beijing) 2023; 4:e194. [PMID: 36582305 PMCID: PMC9790048 DOI: 10.1002/mco2.194] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 12/26/2022] Open
Abstract
3D bioprinting or additive manufacturing is an emerging innovative technology revolutionizing the field of biomedical applications by combining engineering, manufacturing, art, education, and medicine. This process involved incorporating the cells with biocompatible materials to design the required tissue or organ model in situ for various in vivo applications. Conventional 3D printing is involved in constructing the model without incorporating any living components, thereby limiting its use in several recent biological applications. However, this uses additional biological complexities, including material choice, cell types, and their growth and differentiation factors. This state-of-the-art technology consciously summarizes different methods used in bioprinting and their importance and setbacks. It also elaborates on the concept of bioinks and their utility. Biomedical applications such as cancer therapy, tissue engineering, bone regeneration, and wound healing involving 3D printing have gained much attention in recent years. This article aims to provide a comprehensive review of all the aspects associated with 3D bioprinting, from material selection, technology, and fabrication to applications in the biomedical fields. Attempts have been made to highlight each element in detail, along with the associated available reports from recent literature. This review focuses on providing a single platform for cancer and tissue engineering applications associated with 3D bioprinting in the biomedical field.
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Affiliation(s)
- Swikriti Tripathi
- School of Material Science and TechnologyIndian Institute of Technology (Banaras Hindu University)VaranasiIndia
| | - Subham Shekhar Mandal
- School of Material Science and TechnologyIndian Institute of Technology (Banaras Hindu University)VaranasiIndia
| | - Sudepta Bauri
- School of Material Science and TechnologyIndian Institute of Technology (Banaras Hindu University)VaranasiIndia
| | - Pralay Maiti
- School of Material Science and TechnologyIndian Institute of Technology (Banaras Hindu University)VaranasiIndia
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Chen YF, Hsieh CL, Lee LR, Liu YC, Lee MJ, Chen JT. Photoswitchable and Solvent-Controlled Directional Actuators: Supramolecular Assembly and Crosslinked Polymers. Macromol Rapid Commun 2023; 44:e2200547. [PMID: 36208074 DOI: 10.1002/marc.202200547] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/30/2022] [Indexed: 01/26/2023]
Abstract
Untethered small actuators have drawn tremendous interest owing to their reversibility, flexibility, and widespread applications in various fields. For polymer actuators, however, it is still challenging to achieve programmable structural changes under different stimuli caused by the intractability and single-stimulus responses of most polymer materials. Herein, multi-stimuli-responsive polymer actuators that can respond to light and solvent via structural changes are developed. The actuators are based on bilayer films of polydimethylsiloxane (PDMS) and azobenzene chromophore (AAZO)-crosslinked poly(diallyldimethylammonium chloride) (PDAC). Upon UV light irradiation, the AAZO undergoes trans-cis-trans photoisomerization, causing the bending of the bilayer films. When the UV light is off, a shape recovery toward an opposite direction occurs spontaneously. The reversible deformation can be repeated at least 20 cycles. Upon solvent vapor annealing, one of the bilayer films can be selectively swollen, causing the bending of the bilayer films with the directions controlled by the solvent vapors. The effects of different parameters, such as the weight ratios of AAZO and film thicknesses, on the bending angles and curvatures of the polymer films are also analyzed. The results demonstrate that multi-stimuli-responsive actuators with fast responses and high reproducibility can be fulfilled.
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Affiliation(s)
- Yi-Fan Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Chia-Ling Hsieh
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Lin-Ruei Lee
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Yu-Chun Liu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Min-Jie Lee
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan.,Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
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Li Z, LeBlanc J, Kumar H, Zhang H, Yang W, He X, Lu Q, Van Humbeck J, Kim K, Hu J. Super-Anti-Freezing, Tough and Adhesive Titanium Carbide and L-Ornithine-Enhanced Hydrogels. JOURNAL OF BIORESOURCES AND BIOPRODUCTS 2023. [DOI: 10.1016/j.jobab.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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50
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Wang M, Deng Z, Guo Y, Xu P. Engineering functional natural polymer-based nanocomposite hydrogels for wound healing. NANOSCALE ADVANCES 2022; 5:27-45. [PMID: 36605790 PMCID: PMC9765432 DOI: 10.1039/d2na00700b] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Skin injury occurs due to acute trauma, chronic trauma, infection, and surgical intervention, which can result in severe dysfunction and even death in humans. Therefore, clinical intervention is critical for the treatment of skin wounds. One idealized method is to use wound dressings to protect skin wounds and promote wound healing. Among these wound dressings, nanocomposite natural polymer hydrogels (NNPHs) are multifunctional wound dressings for wound healing. The combination of nanomaterials and natural polymer hydrogels avoids the shortcomings of a single component. Moreover, nanomaterials could provide improved antibacterial, anti-inflammatory, antioxidant, stimuli-responsive, electrically conductive and mechanical properties of hydrogels to accelerate wound healing. This review focuses on recent advancements in NNPHs for skin wound healing and repair. Initially, the functions and requirements of NNPHs as wound dressings were introduced. Second, the design, preparation and capacities of representative NNPHs are classified based on their nanomaterial. Third, skin wound repair applications of NNPHs have been summarized based on the types of wounds. Finally, the potential issues of NNPHs are discussed, and future research is proposed to prepare idealized multifunctional NNPHs for skin tissue regeneration.
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Affiliation(s)
- Min Wang
- Honghui Hospital, Xi'an Jiaotong University Xi'an 710000 China
| | - Zexing Deng
- College of Materials Science and Engineering, Xi'an University of Science and Technology Xi'an 710054 China
| | - Yi Guo
- Shaanxi Key Laboratory of Brain Disorders, Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, Institute of Basic and Translational Medicine, Xi'an Medical University Xi'an 710021 China
| | - Peng Xu
- Honghui Hospital, Xi'an Jiaotong University Xi'an 710000 China
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