Article
Materials Science, Multidisciplinary
Subhangi Devadarshini Sahoo, T. K. Vasudha, Vignesh Muthuvijayan, Edamana Prasad
Summary: This study presents a design strategy to regulate physical and chemical interactions in double network hydrogels, resulting in a conductive, self-healing, and self-adhesive hydrogel material. The obtained hydrogels exhibit tunable mechanical properties and high self-healing efficiency due to the dynamic cross-linking nature of the polymer networks. Additionally, the hydrogels show self-adhesive properties on various materials, even underwater. The results suggest that these hydrogels have potential applications as soft human motion sensors.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Cong Huang, Qiqi Miao, Zongjie He, Pu Fan, Yuhui Chen, Qi Zhang, Xiao He, Ling Li, Xiaoguang Liu
Summary: Hydrogel-based strain sensors are gaining increasing attention for their flexibility, transparency, and sensitivity. However, their poor environmental adaptability and lack of self-healing have limited their practical value. In this study, a Polyacrylamide / Chitosan / D-Sorbitol (PCS) conductive hydrogel with multiple properties was developed. The PCS hydrogel exhibited high transparency, large fracture strain, excellent toughness, and adhesive ability to various interfaces. It also had a low-temperature crystallization peak and could respond to strain stimuli. The crack in the hydrogel could be fully repaired in a short time. When used as a strain sensor, it accurately monitored and recognized human joint movement and pronunciation signals. This work provides a novel idea for the development of flexible electronics with multi-performance.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Physical
Rui Xuan, Jinhui Li, Dongxu Huang, Tao Wang, Bo Zhang, Fangfang Niu, Guoping Zhang, Rong Sun, Ching-Ping Wong
Summary: This study successfully prepared a polyelectrolyte with excellent flexibility and self-healing properties, and constructed a supercapacitor with outstanding electrochemical performance, providing a possible solution for designing low-cost intelligent and durable electrochemical storage device for smart clothing or electronic skin.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Shahid Bashir, Maryam Hina, S. Ramesh, K. Ramesh
Summary: Flexible and self-healable supercapacitors with waterbased hydrogel electrolytes show enhanced ionic conductivity and improved performance compared to liquid electrolytes, providing a new approach to overcome the drawbacks of traditional electrolytes.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Electrochemistry
Xinpei Li, Linkun Cai, Mu Li, Mingxin Zhang, Qianjie Zhou, Kun Chen, Panchao Yin
Summary: This study presents the facile preparation of redox-active hydrogels through the supramolecular complexation of neomycin sulfate and metal oxide clusters. These hydrogels exhibit promising proton conductivities and electrode compatibilities, enhancing the energy densities of supercapacitors.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Van-Phu Vu, Van-Dung Mai, Dinh Cung Tien Nguyen, Soo-Hyoung Lee
Summary: This work presents the fabrication of a flexible and self-healing high-performance quasi-solid-state supercapacitor and analyzes its electrochemical performance and mechanical stability. The supercapacitor exhibits high capacitance and energy density, and maintains good performance even after multiple severing/healing cycles. Additionally, it shows excellent mechanical toughness, maintaining stability under various bending deformations. Therefore, this self-healing supercapacitor holds great application potential in portable/wearable electronics.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Yingxue Wu, Liu Yang, Jiadong Wang, Sirui Li, Xianhong Zhang, Dong Chen, Yuhong Ma, Wantai Yang
Summary: The development of degradable, cost-effective, and eco-friendly ionic conductive gels is highly desired. However, achieving biocompatible, degradable, tough, and durable conductive gels is challenging. In this study, a facile strategy is developed for the design and synthesis of degradable tough eutectogels using a supramolecular network and a deep eutectic solvent. These eutectogels demonstrate multiple desired properties and can be used to fabricate biocompatible and degradable multifunctional ionic skins for flexible wearable electronic devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Zeinab Zohreband, Mohsen Adeli, Abedin Zebardasti
Summary: The specific interactions between MoS2 and gelatin matrix resulted in a biomimetic hydrogel with self-healing and molecular recognition properties, showing promise for future biomedical applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Multidisciplinary
Jia Yang, Mengxiao Wang, Tao Chen, Xiang Yu, Gang Qin, Xiaohan Fang, Xiaoxiang Su, Qiang Chen
Summary: To meet the practical needs of flexible and wearable electronic equipment, a novel multifunctional gel polymer electrolyte (GPE) was developed for supercapacitors, which exhibited toughness, self-healing, and high specific capacitance. The GPE, composed of polyvinyl alcohol (PVA)-sodium alginate (SA)-K-3[Fe(CN)](6)-Na2SO4, utilized K-3[Fe(CN)](6) as a carrier donor, ionic crosslinking agent, and redox-active mediator, effectively balancing the conductivity and mechanical properties. The resulting supercapacitor showed outstanding bending and stretching stabilities, self-healing capability, and anti-freezing properties, making it promising for use in complex service conditions of flexible and wearable electronic equipment.
SCIENCE CHINA-MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Wenjing Ma, Wenxuan Cao, Tao Lu, Zhicheng Jiang, Ranhua Xiong, Sangram Keshari Samal, Chaobo Huang
Summary: A physically cross-linked conducting hydrogel has been successfully designed with excellent properties including high stretchability, mechanical strength, transparency, biocompatibility, conductivity, and self-healing capabilities. By optimizing the mechanical properties through adjusting the cellulose nanocrystalline content, the hydrogel exhibited impressive mechanics suitable for applications in flexible electronics.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Lili Jiang, Youjian Li, Fa Zou, Donglin Gan, Mingyuan Gao, Le Yuan, Qinyong Zhang, Xiong Lu
Summary: Researchers designed a highly self-adhesive and deformable polyacrylamide-based hydrogel electrode with the inspiration of mussels. By incorporating nanofillers with confined nanospace formed by the composite of polydopamine-reduced graphene oxide and cobalt-nickel bimetal oxide and cobalt nitride, the hydrogel electrode exhibited impressive self-adhesive property and electrochemical performance. They also assembled a multifunctional all hydrogel-based supercapacitor using the same polyacrylamide hydrogel matrix for both electrodes and electrolyte, which provided a tightly connected interface, structural stability, and highly electrical stability.
MATERIALS TODAY PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Rui Yu, Zhenlong Li, Guoying Pan, Baolin Guo
Summary: Wounds on stretchable parts of the human body cause prolonged suffering and involve more severe healing processes than wounds on stationary parts. However, they have received insufficient attention compared with other types of chronic wounds. In this study, a novel supramolecular gelatin (GT) hydrogel composed of GT-graft-aniline tetramer and quaternized chitosan was presented. The hydrogel exhibited flexibility, self-healing, and tissue adhesiveness and well adapted to motion wounds. Moreover, it showed bioactive properties such as conductivity, antioxidant, hemostatic, antibacterial, and photothermal effects. In MRSA-infected motional wound healing experiment, this hydrogel demonstrated significantly enhanced wound healing efficacy with fast wound closure, mild inflammatory response, high collagen deposition, and enhanced re-epithelialization. The hydrogel has great potential in wound healing and skin tissue engineering, serving as an inspiration for the design of supramolecular biomaterials.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Cheng Chen, Jiajun Wang, Ziqi Xu, Naipin Chen, Fang Wang
Summary: The development of flexible conductive hydrogels with satisfactory mechanical performance and high conductivity remains a challenge. In this study, PVA/PHEMA hydrogels doped with CNFs@PPy were synthesized, exhibiting super-stretchability, toughness, compressive strength, temperature responsiveness, strain sensing capability, self-healing ability, adhesive properties, and fatigue resistance.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Energy & Fuels
He Yang, Min Sang, Guoqiang Li, Danying Zuo, Jing Xu, Hongwei Zhang
Summary: This study introduces a novel deep eutectic solvent electrolyte for all-climate wearable supercapacitors, featuring excellent ionic conductivity and rapid healing properties. Compared to traditional electrolytes, this electrolyte performs well at low temperatures, allowing supercapacitors to operate stably over a wide temperature range.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Guo-Tao Xiang, Na Chen, Bin Lu, Jia-Lei Xu, Raul D. Rodriguez, Evgeniya Sheremet, Yong-Da Hu, Jin-Ju Chen
Summary: A self-powered smart system with flexible solid-state supercapacitors and organic ionic hydrogel sensors has been designed. The supercapacitor demonstrates high energy density and mechanical flexibility, while the sensor shows linear response and stable performance under multiple identical strains.