1
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Ara L, Sher M, Khan M, Rehman TU, Shah LA, Yoo HM. Dually-crosslinked ionic conductive hydrogels reinforced through biopolymer gellan gum for flexible sensors to monitor human activities. Int J Biol Macromol 2024; 276:133789. [PMID: 38992556 DOI: 10.1016/j.ijbiomac.2024.133789] [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: 02/26/2024] [Revised: 05/09/2024] [Accepted: 07/08/2024] [Indexed: 07/13/2024]
Abstract
Human-machine interactions, monitoring of health equipment, and gentle robots all depend considerably on flexible strain sensors. However, making strain sensors have better mechanical behavior and an extensive sensing range remains an urgent difficulty. In this study, poly acrylamide-co-butyl acrylate with gellan gum (poly(AAm-co-BA)@GG) hydrophobic association networks and intermolecular hydrogen bonding interactions are used to fabricate dual cross-linked hydrogels for wearable resistive-type strain sensors. This could be an acceptable way to minimize the limitations in hydrogels previously identified. The robust fracture strength (870 kPa) and exceptional stretchability (1297 %) of the hydrogel arise from the collaborative action of intermolecular hydrogen bonding and hydrophobic associations. It also demonstrates exceptional resilience to repeated cycles of uninterrupted stretching and relaxation, retaining its structural integrity. The response and restoration times are 110 and 120 ms respectively. Furthermore, a wide sensing range (0-900 %), notable sensitivity across various strain levels, and an impressive gauge factor (GF) of 31.51 with high durability were observed by the dual cross-linked (DC) hydrogel-based strain sensors. The measured conductivity of the hydrogel was 0.32 S/m which is due to the incorporation of NaCl. Therefore, the hydrogels can be tailored to function as wearable strain sensors that can detect subtle human gestures like speech patterns, distinguish between distinct words, and recognize vibrations of the larynx during drinking, as well as large joint motions like wrist, finger, and elbow. Furthermore, these hydrogels are capable of reliably distinguishing and reproducing various printed text. These findings imply that any electronic device that demands strain-sensing functionality might make use of these developed materials.
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Affiliation(s)
- Latafat Ara
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan
| | - Muhammad Sher
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan
| | - Mansoor Khan
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan
| | - Tanzil Ur Rehman
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan
| | - Luqman Ali Shah
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan.
| | - Hyeong-Min Yoo
- School of Mechanical Engineering, Korea University of Technology and Education (KOREATECH), Cheonan 31253, Republic of Korea
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2
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Li Y, Cui W, Wang X, Zhang S, Du Q, Fan J, Liu Y. Topological Polymer Networks-Enabled Mechanically Strong Polyamide-Imide Aerogel Fibers for Thermal Insulation in Harsh Environments. ACS APPLIED MATERIALS & INTERFACES 2024; 16:39993-40003. [PMID: 39016461 DOI: 10.1021/acsami.4c07334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
Aerogel fibers have sparked substantial interest as attractive candidates for thermal insulation materials. Developing aerogel fibers with the desired porous structure, good knittability, flame retardancy, and high- and low-temperature resistance is of great significance for practical applications; however, that is very challenging, especially by using an efficient method. Herein, mechanically strong and flexible aerogel fibers with remarkable thermal insulation performance are reported, which are achieved by constructing stiff-soft topological polymer networks and a multilevel hollow porous structure. The combination of polyamide-imide (PAI) with stiff chains and polyurethane (PU) with soft chains is first found to be able to form a topological entanglement architecture. More importantly, multilevel hollow pores can be constructed synchronously through just a one-step and green wet-spinning process. The resultant PAI/PU@340 aerogel fibers show an ultrahigh breaking strength of 94.5 MPa and superelastic property with a breaking strain of 20%. Furthermore, they can be knitted into fabrics with a low thermal conductivity of 25 mW/(m·K) and exhibit attractive thermal insulation property under extremely high (300 °C) and low temperatures (-191 °C), implying them as promising candidates for next-generation thermal insulation materials.
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Affiliation(s)
- Yuyao Li
- School of Textile Science and Engineering, Key Laboratory of Advanced Textile Composite Materials of Ministry of Education, Tiangong University, Tianjin 300387, China
- Key Laboratory of Advanced Textile Composites, Ministry of Education of China, Tiangong University, Tianjin 300387, China
| | - Wang Cui
- School of Textile Science and Engineering, Key Laboratory of Advanced Textile Composite Materials of Ministry of Education, Tiangong University, Tianjin 300387, China
- Key Laboratory of Advanced Textile Composites, Ministry of Education of China, Tiangong University, Tianjin 300387, China
| | - Xin Wang
- School of Textile Science and Engineering, Key Laboratory of Advanced Textile Composite Materials of Ministry of Education, Tiangong University, Tianjin 300387, China
| | - Shuming Zhang
- School of Textile Science and Engineering, Key Laboratory of Advanced Textile Composite Materials of Ministry of Education, Tiangong University, Tianjin 300387, China
| | - Qinghan Du
- School of Textile Science and Engineering, Key Laboratory of Advanced Textile Composite Materials of Ministry of Education, Tiangong University, Tianjin 300387, China
| | - Jie Fan
- School of Textile Science and Engineering, Key Laboratory of Advanced Textile Composite Materials of Ministry of Education, Tiangong University, Tianjin 300387, China
- Key Laboratory of Advanced Textile Composites, Ministry of Education of China, Tiangong University, Tianjin 300387, China
| | - Yong Liu
- School of Textile Science and Engineering, Key Laboratory of Advanced Textile Composite Materials of Ministry of Education, Tiangong University, Tianjin 300387, China
- Key Laboratory of Advanced Textile Composites, Ministry of Education of China, Tiangong University, Tianjin 300387, China
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3
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Dong Z, Zhao J, Xu J, Deng W, Sun P. Strongly Adhesive, Self-Healing, Hemostatic Hydrogel for the Repair of Traumatic Brain Injury. Biomacromolecules 2024; 25:2462-2475. [PMID: 38533630 DOI: 10.1021/acs.biomac.3c01406] [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: 03/28/2024]
Abstract
With wide clinical demands, therapies for traumatic brain injury (TBI) are a major problem in surgical procedures and after major trauma. Due to the difficulty in regeneration of neurons or axons after injury, as well as the inhibition of blood vessel growth by the formation of neural scars, existing treatment measures have limited effectiveness in repairing brain tissue. Herein, the biomultifunctional hydrogels are developed for TBI treatment based on the Schiff base reaction of calcium ion (Ca2+)-cross-linked oxidized sodium alginate (OSA) and carboxymethyl chitosan (CMCS). The obtained COCS hydrogel exhibits excellent adhesion to wet tissues, self-repair capability, and antimicrobial properties. What's particularly interesting is that the addition of Ca2+ increases the hydrogel's extensibility, enhancing its hemostatic capabilities. Biological assessments indicate that the COCS hydrogel demonstrates excellent biocompatibility, hemostatic properties, and the ability to promote arterial vessel repair. Importantly, the COCS hydrogel promotes the growth of cerebral microvessels by upregulating CD31, accelerates the proliferation of astrocytes, enhances the expression of GFAP, and stimulates the expression of neuron-specific markers such as NEUN and β-tubulin. All of these findings highlight that the strongly adhesive, self-healing, hemostatic hydrogel shows great potential for the repair of traumatic brain injury and other tissue repair therapy.
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Affiliation(s)
- Zuoxiang Dong
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Wutaishan Road 1677, Qingdao, Shandong 266000, China
| | - Jihu Zhao
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Wutaishan Road 1677, Qingdao, Shandong 266000, China
| | - Jian Xu
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Wutaishan Road 1677, Qingdao, Shandong 266000, China
| | - Wenshuai Deng
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Wutaishan Road 1677, Qingdao, Shandong 266000, China
| | - Peng Sun
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Wutaishan Road 1677, Qingdao, Shandong 266000, China
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4
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Dai S, Mao L, Ning H, Jiang N, Gan Z, Yi T, Ning Z. Novel Heterogeneous Hydrogel with Dual-Responsive Shape Programmability and Good Biocompatibility. ACS APPLIED MATERIALS & INTERFACES 2024; 16:9275-9285. [PMID: 38330499 DOI: 10.1021/acsami.3c17722] [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: 02/10/2024]
Abstract
Shape memory polymers (SMPs) responsive to various external stimuli can realize a complex shape transformation process and have attracted extensive attention. However, integrating multiple stimulus-responsive mechanisms in one material often requires a complex molecular design and synthesis procedure. In this work, we designed a novel dual-responsive heterogeneous hydrogel (PU-PAM/Alg/PDA), which was manufactured through in situ free radical polymerization of acrylamide (AM) in the presence of alginate (Alg) and polydopamine (PDA) in a porous polycaprolactone-based polyurethane foam (PU-foam). The PU-PAM/Alg/PDA hydrogel could achieve thermal responsiveness through melting-crystallization transformation of polycaprolactone (PCL), while the metallo-supramolecular interactions between Alg and Fe3+ could provide ion responsiveness for this hydrogel. This dual-programmable feature endowed the heterogeneous hydrogel with a complex shape-morphing behavior and also a reconfiguration ability for the permanent shape. Meanwhile, the strong hydrogen bondings between PDA and polyurethane chains enhanced the interfacial adhesions, resulting in the structural integrity and excellent mechanical property of PU-PAM/Alg/PDA. The in vitro and in vivo tests revealed the good biocompatibility of the heterogeneous hydrogel, and the potential of the heterogeneous hydrogel as an esophageal stent was evaluated in vitro as conceptual proof.
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Affiliation(s)
- Suyang Dai
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lingchen Mao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Huijuan Ning
- Children's Hospital Capital Institute of Pediatrics, Beijing 100000, China
| | - Ni Jiang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhihua Gan
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Tuoxin Yi
- Xinxing Cathay International Pharmaceutical Holdings co, Ltd, Beijing 100020, China
| | - Zhenbo Ning
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
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5
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Zheng H, Zhou H, Zheng B, Wei C, Ma A, Jin X, Chen W, Liu H. Stable Flexible Electronic Devices under Harsh Conditions Enabled by Double-Network Hydrogels Containing Binary Cations. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7768-7779. [PMID: 38294427 DOI: 10.1021/acsami.3c17057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Hydrogels are increasingly used in flexible electronic devices, but the mechanical and electrochemical stabilities of hydrogel devices are often limited under specific harsh conditions. Herein, chemically/physically cross-linked double-network (DN) hydrogels containing binary cations Zn2+ and Li+ are constructed in order to address the above challenges. Double networks of chemically cross-linked polyacrylamide (PAM) and physically cross-linked κ-Carrageenan (κ-CG) are designed to account for the mechanical robustness while binary cations endow the hydrogels with excellent ionic conductivity and outstanding environmental adaptability. Excellent mechanical robustness and ionic conductivity (25 °C, 2.26 S·m-1; -25 °C, 1.54 S·m-1) have been achieved. Utilizing the DN hydrogels containing binary cations as signal-converting materials, we fabricated flexible mechanosensors. High gauge factors (resistive strain sensors, 2.4; capacitive pressure sensors, 0.82 kPa-1) and highly stable sensing ability have been achieved. Interestingly, zinc-ion hybrid supercapacitors containing the DN hydrogels containing binary cations as electrolytes have achieved an initial capacity of 52.5 mAh·g-1 at a current density of 3 A·g-1 and a capacity retention rate of 82.9% after 19,000 cycles. Proper working of the zinc-ion hybrid supercapacitors at subzero conditions and stable charge-discharge for more than 19,000 cycles at -25 °C have been demonstrated. Overall, DN hydrogels containing binary cations have provided promising materials for high-performance flexible electronic devices under harsh conditions.
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Affiliation(s)
- Huihui Zheng
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, P. R. China
| | - Hongwei Zhou
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, P. R. China
| | - Bohui Zheng
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, P. R. China
| | - Chuanjuan Wei
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, P. R. China
| | - Aijie Ma
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, P. R. China
| | - Xilang Jin
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, P. R. China
| | - Weixing Chen
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, P. R. China
| | - Hanbin Liu
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, College of Bioresource Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China
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6
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Song Y, Xing L, Zou X, Zhang C, Huang Z, Liu W, Wang J. A chitosan-based conductive double network hydrogel doped by tannic acid-reduced graphene oxide with excellent stretchability and high sensitivity for wearable strain sensors. Int J Biol Macromol 2024; 258:128861. [PMID: 38114012 DOI: 10.1016/j.ijbiomac.2023.128861] [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: 10/02/2023] [Revised: 11/29/2023] [Accepted: 12/15/2023] [Indexed: 12/21/2023]
Abstract
Conductive hydrogels usually suffer from weak mechanical properties and are easily destroyed, resulting in limited applications in flexible electronics. Concurrently, adding conductive additives to the hydrogel solution increases the probability of agglomeration and uneven dispersion issues. In this study, the biocompatible natural polymer chitosan was used as the network substrate. The rigid network employed was the Cit3-ion crosslinked chitosan (CS) network, and the MBA chemically crosslinked polyacrylamide (PAM) network was used as the flexible network. Tannic acid-reduced graphene oxide (TA-rGO), which has excellent conductivity and dispersibility, is used as a conductive filler. Thus, a CS/TA-rGO/PAM double network conductive hydrogel with excellent performance, high toughness, high conductivity, and superior sensing sensitivity was prepared. The prepared CS/TA-rGO/PAM double network conductive hydrogels have strong tensile properties (strain and toughness as high as 2009 % and 1045 kJ/cm3), excellent sensing sensitivity (GF value was 4.01), a wider strain detection range, high cycling stability and durability, good biocompatibility, and antimicrobial properties. The hydrogel can be assembled into flexible wearable devices that can not only dynamically detect human movements, such as joint bending, facial expression changes, swallowing, and saying, but also recognize handwriting and enable human-computer interaction.
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Affiliation(s)
- Yaoting Song
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Lu Xing
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Xinquan Zou
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Chenyan Zhang
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Zhonghuang Huang
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Wenxiu Liu
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China
| | - Jikui Wang
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200030, People's Republic of China.
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7
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Wang Y, Guo J, Cao X, Zhao Y. Developing conductive hydrogels for biomedical applications. SMART MEDICINE 2024; 3:e20230023. [PMID: 39188512 PMCID: PMC11235618 DOI: 10.1002/smmd.20230023] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 08/06/2023] [Indexed: 08/28/2024]
Abstract
Conductive hydrogels have attracted copious attention owing to their grateful performances, such as similarity to biological tissues, compliance, conductivity and biocompatibility. A diversity of conductive hydrogels have been developed and showed versatile potentials in biomedical applications. In this review, we highlight the recent advances in conductive hydrogels, involving the various types and functionalities of conductive hydrogels as well as their applications in biomedical fields. Furthermore, the current challenges and the reasonable outlook of conductive hydrogels are also given. It is expected that this review will provide potential guidance for the advancement of next-generation conductive hydrogels.
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Affiliation(s)
- Yu Wang
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjingChina
| | - Jiahui Guo
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjingChina
| | - Xinyue Cao
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjingChina
| | - Yuanjin Zhao
- Department of Rheumatology and ImmunologyNanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjingChina
- Southeast University Shenzhen Research InstituteShenzhenChina
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8
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Guo K, Wang Y, Feng ZX, Lin XY, Wu ZR, Zhong XC, Zhuang ZM, Zhang T, Chen J, Tan WQ. Recent Development and Applications of Polydopamine in Tissue Repair and Regeneration Biomaterials. Int J Nanomedicine 2024; 19:859-881. [PMID: 38293610 PMCID: PMC10824616 DOI: 10.2147/ijn.s437854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 12/29/2023] [Indexed: 02/01/2024] Open
Abstract
The various tissue damages are a severe problem to human health. The limited human tissue regenerate ability requires suitable biomaterials to help damage tissue repair and regeneration. Therefore, many researchers devoted themselves to exploring biomaterials suitable for tissue repair and regeneration. Polydopamine (PDA) as a natural and multifunctional material which is inspired by mussel has been widely applied in different biomaterials. The excellent properties of PDA, such as strong adhesion, photothermal and high drug-loaded capacity, seem to be born for tissue repair and regeneration. Furthermore, PDA combined with different materials can exert unexpected effects. Thus, to inspire researchers, this review summarizes the recent and representative development of PDA biomaterials in tissue repair and regeneration. This article focuses on why apply PDA in these biomaterials and what PDA can do in different tissue injuries.
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Affiliation(s)
- Kai Guo
- Department of Plastic Surgery, Sir Run Run Shaw Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, People’s Republic of China
| | - Yong Wang
- Department of Plastic Surgery, Sir Run Run Shaw Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, People’s Republic of China
| | - Zi-Xuan Feng
- Department of Plastic Surgery, Sir Run Run Shaw Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, People’s Republic of China
| | - Xiao-Ying Lin
- Department of Plastic Surgery, Sir Run Run Shaw Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, People’s Republic of China
| | - Zhang-Rui Wu
- Department of Plastic Surgery, Sir Run Run Shaw Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, People’s Republic of China
| | - Xin-Cao Zhong
- Department of Plastic Surgery, Sir Run Run Shaw Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, People’s Republic of China
| | - Ze-Ming Zhuang
- Department of Plastic Surgery, Sir Run Run Shaw Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, People’s Republic of China
| | - Tao Zhang
- Department of Plastic Surgery, Sir Run Run Shaw Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, People’s Republic of China
| | - Jian Chen
- Department of Ultrasonography, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang Province, People’s Republic of China
| | - Wei-Qiang Tan
- Department of Plastic Surgery, Sir Run Run Shaw Hospital Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, People’s Republic of China
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Miao Y, Liu X, Luo J, Yang Q, Chen Y, Wang Y. Double-Network DNA Macroporous Hydrogel Enables Aptamer-Directed Cell Recruitment to Accelerate Bone Healing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2303637. [PMID: 37949678 PMCID: PMC10767401 DOI: 10.1002/advs.202303637] [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: 08/09/2023] [Revised: 09/20/2023] [Indexed: 11/12/2023]
Abstract
Recruiting endogenous bone marrow mesenchymal stem cells (BMSCs) in vivo to bone defect sites shows great promise in cell therapies for bone tissue engineering, which tackles the shortcomings of delivering exogenous stem cells, including limited sources, low retention, stemness loss, and immunogenicity. However, it remains challenging to efficiently recruit stem cells while simultaneously directing cell differentiation in the dynamic microenvironment and promoting neo-regenerated tissue ingrowth to achieve augmented bone regeneration. Herein, a synthetic macroporous double-network hydrogel presenting nucleic acid aptamer and nano-inducer enhances BMSCs recruitment, and osteogenic differentiation is demonstrated. An air-in-water template enables the rapid construction of highly interconnective macroporous structures, and the physical self-assembly of DNA strands and chemical cross-linking of gelatin chains synergistically generate a resilient double network. The aptamer Apt19S and black phosphorus nanosheets-specific macroporous hydrogel demonstrate highly efficient endogenous BMSCs recruitment, cell differentiation, and extracellular matrix mineralization. Notably, the enhanced calvarial bone healing with promising matrix mineralization and new bone formation is accompanied by adapting this engineered hydrogel to the bone defects. The findings suggest an appealing material approach overcoming the traditional limitations of cell-delivery therapy that can inspire the future design of next-generation hydrogel for enhanced bone tissue regeneration.
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Affiliation(s)
- Yali Miao
- School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510641China
- National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of TechnologyGuangzhou510006China
- Department of OrthopedicsGuangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhou510080China
- Guangdong Cardiovascular InstituteGuangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhou510080China
| | - Xiao Liu
- School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510641China
- National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of TechnologyGuangzhou510006China
| | - Jinshui Luo
- School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510641China
- National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of TechnologyGuangzhou510006China
| | - Qian Yang
- School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510641China
- National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of TechnologyGuangzhou510006China
| | - Yunhua Chen
- School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510641China
- National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of TechnologyGuangzhou510006China
- Key Laboratory of Biomedical Engineering of Guangdong Province and Innovation Center for Tissue Restoration and ReconstructionSouth China University of TechnologyGuangzhou510006China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of EducationSouth China University of TechnologyGuangzhou510006China
| | - Yingjun Wang
- School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou510641China
- National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of TechnologyGuangzhou510006China
- Key Laboratory of Biomedical Engineering of Guangdong Province and Innovation Center for Tissue Restoration and ReconstructionSouth China University of TechnologyGuangzhou510006China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of EducationSouth China University of TechnologyGuangzhou510006China
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10
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Yang Q, Li M, Chen R, Gao D, Wang Z, Qin C, Yang W, Liu H, Zhang P. Enhanced Mechanical Strength of Metal Ion-Doped MXene-Based Double-Network Hydrogels for Highly Sensitive and Durable Flexible Sensors. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37890050 DOI: 10.1021/acsami.3c12048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
Development of conductive hydrogels with high sensitivity and excellent mechanical properties remains a challenge for constructing flexible sensor devices. Herein, a universal strategy is presented for enhancing the mechanical strength of Mxene-based double-network hydrogels through metal ion coordination effects. Polyacrylamide (PAM)/sodium alginate (SA)/Mxene double-network (PSM-DN) hydrogels were prepared by metal ion impregnation of PAM/SA/Mxene (PSM) hydrogels. High electrical conductivity is achieved due to MXene nanosheets, while the strong coordination bond between metal ions and SA constructs a second network that increases the mechanical strength of the hydrogel by an order of magnitude. Mechanical tests demonstrated that the elastic modulus of hydrogels matches that of human tissues. Hence, they can be used as a highly sensitive electronic skin sensor to recognize the movement of different joints in humans and also as a pressure sensing interface to recognize characters for anticounterfeiting and information transfer. This work can promote the practical application of conductive hydrogels in high-tech fields, such as flexible electronic skin and interface interaction.
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Affiliation(s)
- Qin Yang
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Mingzi Li
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Rong Chen
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Dahang Gao
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhen Wang
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Chuanjian Qin
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Wenjing Yang
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Hu Liu
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Pengsheng Zhang
- Biomaterials Research Center, Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, China
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11
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Zhao P, Zhang Y, Chen X, Xu C, Guo J, Deng M, Qu X, Huang P, Feng Z, Zhang J. Versatile Hydrogel Dressing with Skin Adaptiveness and Mild Photothermal Antibacterial Activity for Methicillin-Resistant Staphylococcus Aureus-Infected Dynamic Wound Healing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206585. [PMID: 36776018 PMCID: PMC10104652 DOI: 10.1002/advs.202206585] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/28/2022] [Indexed: 06/18/2023]
Abstract
Bacterial infection often induces chronic repair of wound healing owing to aggravated inflammation. Hydrogel dressing exhibiting intrinsic antibacterial activity may substantially reduce the use of antibiotics for infected wound management. Hence, a versatile hydrogel dressing (rGB/QCS/PDA-PAM) exhibiting skin adaptiveness on dynamic wounds and mild photothermal antibacterial activity is developed for safe and efficient infected wound treatment. Phenylboronic acid-functionalized graphene (rGB) and oxadiazole-decorated quaternary carboxymethyl chitosan (QCS) are incorporated into a polydopamine-polyacrylamide (PDA-PAM) network with multiple covalent and noncovalent bonds, which conferred the hydrogel with flexible mechanical properties, strong tissue adhesion and excellent self-healing ability on the dynamic wounds. Moreover, the glycocalyx-mimicking phenylboronic acid on the surface of rGB enables the hydrogel to specifically capture bacteria. The enhanced membrane permeability of QCS enhanced bacterial vulnerability to photothermal therapy(PTT), which is demonstrated by efficient mild PTT antibacteria against methicillin-resistant Staphylococcus aureus in vitro and in vivo at temperatures of <49.6 °C. Consequently, the hydrogel demonstrate accelerated tissue regeneration on MRSA-infected wound in vivo, with an intact epidermis, abundant collagen deposition and prominent angiogenesis. Therefore, rGB/QCS/PDA-PAM is a versatile hydrogel dressing exhibiting inherent antibacterial activity and has considerable potential in treating wounds infected with drug-resistant bacteria.
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Affiliation(s)
- Peng Zhao
- Hebei Key Laboratory of Functional PolymersSchool of Chemical Engineering and TechnologyHebei University of Technology5340 Xiping Road, Beichen DistrictTianjin300130P. R. China
| | - Yu Zhang
- Hebei Key Laboratory of Functional PolymersSchool of Chemical Engineering and TechnologyHebei University of Technology5340 Xiping Road, Beichen DistrictTianjin300130P. R. China
| | - Xiaoai Chen
- Hebei Key Laboratory of Functional PolymersSchool of Chemical Engineering and TechnologyHebei University of Technology5340 Xiping Road, Beichen DistrictTianjin300130P. R. China
| | - Chang Xu
- Hebei Key Laboratory of Functional PolymersSchool of Chemical Engineering and TechnologyHebei University of Technology5340 Xiping Road, Beichen DistrictTianjin300130P. R. China
| | - Jingzhe Guo
- Hebei Key Laboratory of Functional PolymersSchool of Chemical Engineering and TechnologyHebei University of Technology5340 Xiping Road, Beichen DistrictTianjin300130P. R. China
| | - Meigui Deng
- Hebei Key Laboratory of Functional PolymersSchool of Chemical Engineering and TechnologyHebei University of Technology5340 Xiping Road, Beichen DistrictTianjin300130P. R. China
| | - Xiongwei Qu
- Hebei Key Laboratory of Functional PolymersSchool of Chemical Engineering and TechnologyHebei University of Technology5340 Xiping Road, Beichen DistrictTianjin300130P. R. China
| | - Pingsheng Huang
- Tianjin Key Laboratory of Biomaterial ResearchInstitute of Biomedical EngineeringChinese Academy of Medical Sciences and Peking Union Medical College236 Baidi Road, Nankai DistrictTianjin300192P. R. China
| | - Zujian Feng
- Tianjin Key Laboratory of Biomaterial ResearchInstitute of Biomedical EngineeringChinese Academy of Medical Sciences and Peking Union Medical College236 Baidi Road, Nankai DistrictTianjin300192P. R. China
| | - Jimin Zhang
- Hebei Key Laboratory of Functional PolymersSchool of Chemical Engineering and TechnologyHebei University of Technology5340 Xiping Road, Beichen DistrictTianjin300130P. R. China
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12
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Kang B, Gao M, Zhao R, Zhao Z, Song S. Multi-environmentally stable and underwater adhesive DNA ionogels enabling flexible strain sensor. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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13
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Khan M, Shah LA, Rahman TU, Yoo HM, Ye D, Vacharasin J. Cellulose nanocrystals boosted hydrophobic association in dual network polymer hydrogels as advanced flexible strain sensor for human motion detection. J Mech Behav Biomed Mater 2023; 138:105610. [PMID: 36509014 DOI: 10.1016/j.jmbbm.2022.105610] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 11/29/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
Conductive hydrogels attract the attention of researchers worldwide, especially in the field of flexible sensors like strain and pressure. These flexible materials have potential applications in the field of electronic skin, soft robotics, energy storage, and human motion detection. However, its practical application is limited due to low stretchability, high hysteresis energy, low conductivity, long-range strain sensitivity, and high response time. It's still a challenging job to endow all these properties in a single hydrogel network. In the present work, cellulose nano crystals (CNCs) reinforced hydrophobically associated gels were developed using APS as a source of radical polymerization, acrylamide and lauryl methacrylate were used as a monomer. CNCs reinforced the hydrophobically associated hydrogels through hydrogen bonding to retain the hydrogel's network structure. Hydrogels consist of dual crosslinking, which demonstrate exceptional mechanical performance (fracture stress and strain, toughness, and Young's modulus). The low hysteresis energy (10.9 kJm-3) and high conductivity (22.97 mS/cm) make the hydrogels a strong candidate for strain sensors with high sensitivity (GF = 19.25 at 700% strain) and a fast response time of 200 ms. Cyclic performance was also investigated up to 300 continuous cycles. After 300 cycles, the hydrogels were still stable and no considerable change was observed. These hydrogels are capable of sensing different human motions like wrist, finger bending, and neck (up-down and straight and right/left motion of neck). The hydrogels also demonstrate changes in current in response to swallowing, different speaking words, and writing different alphabets. These results suggest that our prepared materials can sense different small and large human motions, and also could be used in any electronic device where strain sensing is required.
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Affiliation(s)
- Mansoor Khan
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
| | - Luqman Ali Shah
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan.
| | - Tanzil Ur Rahman
- Polymer Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
| | - Hyeong-Min Yoo
- School of Mechanical Engineering, Korea University of Technology and Education (KOREATECH), Cheonan, 31253, Republic of Korea
| | - Daixin Ye
- Institute for Sustainable Energy, College of Sciences, Shanghai University, Shanghai, 200444, PR China.
| | - Janay Vacharasin
- Department of Biology, Francis Marion University, Florence, 29506, United States
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14
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A toughened, transparent, anti-freezing and solvent-resistant hydrogel towards environmentally tolerant strain sensor and soft connection. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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He Z, Zhou Z, Yuan W. Highly Adhesive, Stretchable, and Antifreezing Hydrogel with Excellent Mechanical Properties for Sensitive Motion Sensors and Temperature-/Humidity-Driven Actuators. ACS APPLIED MATERIALS & INTERFACES 2022; 14:38205-38215. [PMID: 35952384 DOI: 10.1021/acsami.2c10292] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Conductive hydrogels as flexible wearable devices have attracted considerable attention due to their mechanical flexibility and intelligent sensing. How to endow more and better performance, such as high self-adhesion, stretchability, and wide application temperature range for traditional hydrogels and flexible sensors is a challenge. Herein, a stretchable, self-adhesive, and antifreezing conductive hydrogel with multiple networks and excellent mechanical properties was prepared by a two-step method for its application in sensitive motion sensors and temperature-/humidity-driven actuators. First, quaternary chitosan (QCS) was introduced into the network of an acrylamide (AM) and 1-vinyl imidazole (VI) copolymer initiated by UV-photoinitiated radical polymerization. Then, the double-network hydrogel was immersed in a FeCl3 solution to fabricate the P(AAm-co-VI)/QCS-Fe3+ ionic hydrogel with multiple physical networks. The properties of the hydrogel were controllable and adjustable. The toughness of the ionic hydrogel could reach up to 654.4 kJ/m3, the fracture strength could reach 253.1 kPa, and the compressive strength reached 8.4 MPa at an 80% compression strain. The multiple physical networks improved the mechanical properties and the quick resilience of the hydrogel. A large amount of FeCl3 in the network greatly enhanced the ionic conductivity. Meanwhile, hydrogen bonds with water molecules inhibit the formation of ice crystals between zero water molecules and enhance the freezing resistance of P(Aam-co-VI)/QCS hydrogels. The active group on the QCS chain provided adhesiveness to various substrates for hydrogels. The P(AAm-co-VI)/QCS-Fe3+ hydrogel-based sensor showed high sensitivity, which can detect human movement and pulse, with a gauge factor of 2.37. Finally, due to the different dehydration rates of the P(AAm-co-VI)/QCS-Fe3+ and P(AAm-co-VI)/QCS hydrogel, a double-layer temperature/humidity-driven actuator was fabricated, expanding the application of conductive hydrogels.
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Affiliation(s)
- Zhirui He
- Department of Interventional and Vascular Surgery, Shanghai Tenth People's Hospital, School of Materials Science and Engineering, Tongji University, Shanghai 201804, People's Republic of China
| | - Zixuan Zhou
- Department of Interventional and Vascular Surgery, Shanghai Tenth People's Hospital, School of Materials Science and Engineering, Tongji University, Shanghai 201804, People's Republic of China
| | - Weizhong Yuan
- Department of Interventional and Vascular Surgery, Shanghai Tenth People's Hospital, School of Materials Science and Engineering, Tongji University, Shanghai 201804, People's Republic of China
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16
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Li J, Chee HL, Chong YT, Chan BQY, Xue K, Lim PC, Loh XJ, Wang F. Hofmeister Effect Mediated Strong PHEMA-Gelatin Hydrogel Actuator. ACS APPLIED MATERIALS & INTERFACES 2022; 14:23826-23838. [PMID: 35575697 DOI: 10.1021/acsami.2c01922] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Hydrogels have become popular in biomedical applications, but their applications in muscle and tendon-like bioactuators have been hindered by low toughness and elastic modulus. Recently, a significant toughness enhancement of a single hydrogel network has been successfully achieved by the Hofmeister effect. However, little has been conducted for the Hofmeister effect on the hybrid hydrogels, although they have a special network structure consisting of two types of polymer components. Herein we fabricated hybrid poly(2-hydroxyethyl methacrylate) (PHEMA)-gelatin hydrogels with high mechanical performance and stimuli response. An ideal bicontinuous phase separation structure of the PHEMA (rigid) and gelatin (ductile) was observed with embedded microdisc-like gelatin in the three-dimensional polymeric network of PHEMA. A significant enhancement of mechanical performance by the Hofmeister effect was attributed to the salting-out-induced stronger and closer interphase interaction between PHEMA and gelatin. A superior comprehensive mechanical performance with fracture elongation over 650%, tensile strength of 5.2 MPa, toughness of 13.5 MJ/m3, and modulus of 45.6 MPa was achieved with the salting-out effect. More specifically, the synergy of phase separation and Hofmeister effect enable the hydrogel to contract with an enhanced modulus in high-concentration salt solutions, while the same hydrogel swells and relaxes in dilute solutions, exhibiting an ionic stimulus response and excellent shape-memory properties like those of most artificial muscle. This is manifested in highly stretched, twisted, and knotted hydrogel strips that can rapidly recover their original shape in a dilute salt solution. The high strength and modulus, ionic stimuli response, and shape memory property make the hybrid hydrogel a promising material for bioactuators in various biomedical applications.
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Affiliation(s)
- Jian Li
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Laboratory of Neurology, the First Affiliated Hospital, Hainan Medical University, Haikou 571199, P. R. China
- Department of Biochemistry and Molecular Biology and Department of Neurology of the First Affiliated Hospital, Hainan Medical University, Haikou 571199, P. R. China
| | - Heng Li Chee
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
| | - Yi Ting Chong
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
| | - Benjamin Qi Yu Chan
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
| | - Kun Xue
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
| | - Poh Chong Lim
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
| | - FuKe Wang
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
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17
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Hou H, Yang T, Zhao Y, Qi M, Song Z, Xiao Y, Xu L, Qu X, Liang F, Yang Z. Janus Nanoparticle Coupled Double-Network Hydrogel. Macromol Rapid Commun 2022; 43:e2200157. [PMID: 35503683 DOI: 10.1002/marc.202200157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 04/28/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Hanyi Hou
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Tiantian Yang
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.,Liaoning Provincial Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials, Liaoning University, Shenyang, 110036, China
| | - Yanran Zhao
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Meiyuan Qi
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Zhining Song
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yi Xiao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Lai Xu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Xiaozhong Qu
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fuxin Liang
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Zhenzhong Yang
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
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18
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Wang H, Li X, Ji Y, Xu J, Ye Z, Wang S, Du X. Highly transparent, mechanical, and self-adhesive zwitterionic conductive hydrogels with polyurethane as a cross-linker for wireless strain sensors. J Mater Chem B 2022; 10:2933-2943. [PMID: 35302157 DOI: 10.1039/d2tb00157h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Zwitterionic hydrogels have attracted a myriad of research interests for their excellent flexibility and biocompatibility as flexible wearable sensors. It is desired to create E-skins that integrate high mechanical strength, sensory sensitivity, and broad adhesion, possessing potential in the fields of intelligent robots and bionic prostheses. In this work, a novel macromolecular cross-linker (MPU) based on waterborne polyurethane (WPU) was designed and applied to synthesize multifunctional conductive hydrogels (PASU-Zn hydrogels). Importantly, in the presence of MPU, the hydrogels exhibited well-balanced mechanical properties (elongation at break 1193%, tensile strength 1.02 MPa, outstanding puncture resistance, and self-recovery abilities). When assembled as wireless strain sensors, PASU-Zn sensors displayed distinguished sensing characteristics to detect mechanotransduction signals of human movements in real-time. Specifically, owing to the dipole-dipole interaction and hydrogen bonding of zwitterions and MPU, the hydrogels have remarkable self-adhesion properties to various surfaces of wood, PDMS, and pigskin, allowing them to stick to skins by themselves without using any adhesive tapes when used. It is deemed that the as-designed zwitterionic hydrogels show great promise for wearable devices and bionic skins.
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Affiliation(s)
- Haibo Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, P. R. China. .,The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
| | - Xiaoyi Li
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Ying Ji
- Institute of Textiles and Clothing, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR
| | - Junhuai Xu
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Zhifan Ye
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Shuang Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Xiaosheng Du
- College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
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19
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Dai S, Yue S, Ning Z, Jiang N, Gan Z. Polydopamine Nanoparticle-Reinforced Near-Infrared Light-Triggered Shape Memory Polycaprolactone-Polydopamine Polyurethane for Biomedical Implant Applications. ACS APPLIED MATERIALS & INTERFACES 2022; 14:14668-14676. [PMID: 35311259 DOI: 10.1021/acsami.2c03172] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Near-infrared (NIR) light-triggered shape memory polymers are expected to have a more promising prospect in biomedical applications compared with traditional heat-triggered shape memory polymers. In this work, a new kind of polyurethane with NIR light-triggered shape memory property was prepared by using polycaprolactone (PCL), polydopamine nanoparticles (PDANPs), hexamethylene diisocyanate (HDI), and 1,4-butanediol (BDO). The synthesized PCL-PDA polyurethanes, especially when the weight content of PDANPs was 0.17%, showed excellent mechanical properties because the PDANPs were well-dispersed in polyurethanes by the chain extension reaction. Moreover, it also showed an NIR light-triggered rapid shape recovery because of the photothermal effect of polydopamine. The in vitro and in vivo tests showed that the PCL-PDA polyurethane would not inhibit cell proliferation nor induce a strong host inflammatory response, revealing the non-cytotoxicity and good biocompatibility of the material. In addition, the PCL-PDA polyurethane exhibited excellent in vivo NIR light-triggered shape memory performance under an 808 nm laser with low intensity (0.33 W cm-2), which was harmless to the human skin. These results demonstrated the potential of the PCL-PDA polyurethane in biomedical implant applications.
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Affiliation(s)
- Suyang Dai
- Beijing Laboratory of Biomedical Materials, State Key Laboratory of Organic-Inorganic Composites, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Saisai Yue
- Beijing Laboratory of Biomedical Materials, State Key Laboratory of Organic-Inorganic Composites, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhenbo Ning
- Beijing Laboratory of Biomedical Materials, State Key Laboratory of Organic-Inorganic Composites, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ni Jiang
- Beijing Laboratory of Biomedical Materials, State Key Laboratory of Organic-Inorganic Composites, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhihua Gan
- Beijing Laboratory of Biomedical Materials, State Key Laboratory of Organic-Inorganic Composites, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
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20
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Affiliation(s)
- Youbing Mu
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Optoelectronic Materials and Technology, Jianghan University, Wuhan, P. R. China
| | - Qian Sun
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Optoelectronic Materials and Technology, Jianghan University, Wuhan, P. R. China
| | - Bowen Li
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Optoelectronic Materials and Technology, Jianghan University, Wuhan, P. R. China
| | - Xiaobo Wan
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Optoelectronic Materials and Technology, Jianghan University, Wuhan, P. R. China
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21
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Zhang J, Zhang Q, Liu X, Xia S, Gao Y, Gao G. Flexible and wearable strain sensors based on conductive hydrogels. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210935] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jiawei Zhang
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Qin Zhang
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Xin Liu
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Shan Xia
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Yang Gao
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science Changchun University of Technology Changchun China
| | - Guanghui Gao
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science Changchun University of Technology Changchun China
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22
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Rahmani P, Shojaei A. A review on the features, performance and potential applications of hydrogel-based wearable strain/pressure sensors. Adv Colloid Interface Sci 2021; 298:102553. [PMID: 34768136 DOI: 10.1016/j.cis.2021.102553] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 10/09/2021] [Accepted: 10/23/2021] [Indexed: 01/11/2023]
Abstract
Over the past few years, development of wearable devices has gained increasing momentum. Notably, the demand for stretchable strain sensors has significantly increased due to many potential and emerging applications such as human motion monitoring, prosthetics, robotic systems, and touch panels. Recently, hydrogels have been developed to overcome the drawbacks of the elastomer-based wearable strain sensors, caused by insufficient biocompatibility, brittle mechanical properties, complicated fabrication process, as the hydrogels can provide a combination of various exciting properties such as intrinsic electrical conductivity, suitable mechanical properties, and biocompatibility. There are numerous research works reported in the literature which consider various aspects as preparation approaches, design strategies, properties control, and applications of hydrogel-based strain sensors. This article aims to present a review on this exciting topic with a new insight on the hydrogel-based wearable strain sensors in terms of their features, strain sensory performance, and prospective applications. In this respect, we first briefly review recent advances related to designing the materials and the methods for promoting hydrogels' intrinsic features. Then, strain (both tensile and pressure) sensing performance of prepared hydrogels is critically studied, and alternative approaches for their high-performance sensing are proposed. Subsequently, this review provides several promising applications of hydrogel-based strain sensors, including bioapplications and human-machine interface devices. Finally, challenges and future outlooks of conductive and stretchable hydrogels employed in the wearable strain sensors are discussed.
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23
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Zhang J, Wang Y, Wei Q, Wang Y, Lei M, Li M, Li D, Zhang L, Wu Y. Self-Healing Mechanism and Conductivity of the Hydrogel Flexible Sensors: A Review. Gels 2021; 7:216. [PMID: 34842713 PMCID: PMC8628684 DOI: 10.3390/gels7040216] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 12/19/2022] Open
Abstract
Sensors are devices that can capture changes in environmental parameters and convert them into electrical signals to output, which are widely used in all aspects of life. Flexible sensors, sensors made of flexible materials, not only overcome the limitations of the environment on detection devices but also expand the application of sensors in human health and biomedicine. Conductivity and flexibility are the most important parameters for flexible sensors, and hydrogels are currently considered to be an ideal matrix material due to their excellent flexibility and biocompatibility. In particular, compared with flexible sensors based on elastomers with a high modulus, the hydrogel sensor has better stretchability and can be tightly attached to the surface of objects. However, for hydrogel sensors, a poor mechanical lifetime is always an issue. To address this challenge, a self-healing hydrogel has been proposed. Currently, a large number of studies on the self-healing property have been performed, and numerous exciting results have been obtained, but there are few detailed reviews focusing on the self-healing mechanism and conductivity of hydrogel flexible sensors. This paper presents an overview of self-healing hydrogel flexible sensors, focusing on their self-healing mechanism and conductivity. Moreover, the advantages and disadvantages of different types of sensors have been summarized and discussed. Finally, the key issues and challenges for self-healing flexible sensors are also identified and discussed along with recommendations for the future.
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Affiliation(s)
- Juan Zhang
- Industry Engineering Department, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China; (J.Z.); (Y.W.); (M.L.); (M.L.); (D.L.); (L.Z.); (Y.W.)
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yanen Wang
- Industry Engineering Department, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China; (J.Z.); (Y.W.); (M.L.); (M.L.); (D.L.); (L.Z.); (Y.W.)
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an 710072, China
| | - Qinghua Wei
- Industry Engineering Department, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China; (J.Z.); (Y.W.); (M.L.); (M.L.); (D.L.); (L.Z.); (Y.W.)
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yanmei Wang
- Industry Engineering Department, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China; (J.Z.); (Y.W.); (M.L.); (M.L.); (D.L.); (L.Z.); (Y.W.)
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an 710072, China
| | - Mingju Lei
- Industry Engineering Department, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China; (J.Z.); (Y.W.); (M.L.); (M.L.); (D.L.); (L.Z.); (Y.W.)
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an 710072, China
| | - Mingyang Li
- Industry Engineering Department, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China; (J.Z.); (Y.W.); (M.L.); (M.L.); (D.L.); (L.Z.); (Y.W.)
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an 710072, China
| | - Dinghao Li
- Industry Engineering Department, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China; (J.Z.); (Y.W.); (M.L.); (M.L.); (D.L.); (L.Z.); (Y.W.)
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an 710072, China
| | - Longyu Zhang
- Industry Engineering Department, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China; (J.Z.); (Y.W.); (M.L.); (M.L.); (D.L.); (L.Z.); (Y.W.)
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yu Wu
- Industry Engineering Department, School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China; (J.Z.); (Y.W.); (M.L.); (M.L.); (D.L.); (L.Z.); (Y.W.)
- Institute of Medical Research, Northwestern Polytechnical University, Xi’an 710072, China
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He Z, Yuan W. Highly Stretchable, Adhesive Ionic Liquid-Containing Nanocomposite Hydrogel for Self-Powered Multifunctional Strain Sensors with Temperature Tolerance. ACS APPLIED MATERIALS & INTERFACES 2021; 13:53055-53066. [PMID: 34699172 DOI: 10.1021/acsami.1c14139] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The demand for wearable sensors consisting of multifunctional conductive hydrogels with fatigue resistance and adhesion properties is rising. More importantly, it is necessary to improve the freezing tolerance and dehydration resistance of hydrogels to avoid performance degradation in harsh environments. Herein, a robust nanocomposite ionogel was fabricated in [EMIM][Cl] ionic liquid and clay nanosheets were used as physical cross-linkers through rapid UV polymerization. The excellent mechanical properties, repeated self-adhesion to various substrates, freezing tolerance, and anti-drying properties were integrated into the nanocomposite ionic liquid hydrogel. The addition of clay nanosheets Laponite XLG endowed the ionogel with a high stretchability of up to 1200% and a tensile strength of up to 0.14 MPa, and the ionogel could be recovered when the external force was released. Ascribing to ionic liquids, the nanocomposite ionogel displayed ionic conductivity and temperature tolerance. An ionogel battery with a 0.72 V output voltage was formed by assembling the ionogel with a layer of zinc and copper sheet on each side to realize the conversion from chemical energy to electrical energy. The maximum voltage could reach 2.8 V when the four units are combined, which could provide energy for an LED bulb and could be used as a self-powered strain sensor under harsh conditions. In this work, a multifunctional ionogel self-powered sensor is proposed, which has potential applications in the fields of electronic skin, human-machine interaction, and biosensors over a wide temperature range.
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Affiliation(s)
- Zhirui He
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China
| | - Weizhong Yuan
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China
- Department of Interventional and Vascular Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, People's Republic of China
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