Review
Engineering, Electrical & Electronic
Yahao Dai, Huawei Hu, Maritha Wang, Jie Xu, Sihong Wang
Summary: The article reviews the development of stretchable transistors and functional circuits, examining progress in terms of materials and device engineering. The authors discuss the three established approaches for creating stretchable transistors and explore the current capabilities of stretchable transistors and circuits in human-integrated electronics, as well as the challenges involved in delivering advanced applications.
NATURE ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Qian Gong, Yingying Yu, Lixing Kang, Mingchao Zhang, Yingying Zhang, Shanshan Wang, Yutao Niu, Yongyi Zhang, Jiangtao Di, Qingwen Li, Jin Zhang
Summary: The carbonene extraneural electrode, combining rigid nanosheets and soft nanotubes, demonstrates superior mechanical match and excellent performance, serving as a novel and efficient design for neural electrodes in the future.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Analytical
Afraiz Tariq Satti, Jiyoun Kim, Eunsurk Yi, Hwi-young Cho, Sungbo Cho
Summary: This study investigated a driver drowsiness detection system based on electromyography signals, proposing an algorithm that detects weak muscle activity as a sign of driver drowsiness. Results showed an increase in driver drowsiness level and decrease in muscle activity during driving tasks, with frequency components shifting over time. The proposed algorithm demonstrated good real-time performance and the microneedle electrode showed comparable results with traditional electrodes, highlighting its potential for use in monitoring driver drowsiness.
Article
Materials Science, Multidisciplinary
Xiaofeng Wang, Jiang Liu, Yiqiang Zheng, Bao Shi, Aibing Chen, Lili Wang, Guozhen Shen
Summary: Liquid metals have great potential in flexible and deformable electronics due to their fluidity, low viscosity, high conductivity, and low toxicity. However, existing sensors based on liquid metals are complex and costly. In this study, a flexible three-dimensional conductive network was created by coating liquid metal droplets onto a thermoplastic polyurethane fiber film. This network exhibited excellent biocompatibility, conductivity, and stretchability, making it suitable for monitoring human body movements and healthcare applications.
SCIENCE CHINA-MATERIALS
(2022)
Article
Multidisciplinary Sciences
Chuanqian Shi, Zhanan Zou, Zepeng Lei, Pengcheng Zhu, Guohua Nie, Wei Zhang, Jianliang Xiao
Summary: Cutting-edge technologies in stretchable electronics have wide applications in various fields such as healthcare, prosthetics, robotics, and biomedical devices, providing reliable, economical, and ecofriendly solutions for wearable technologies.
Article
Engineering, Electrical & Electronic
Lu Yin, Mengzhu Cao, Kyeong Nam Kim, Muyang Lin, Jong-Min Moon, Juliane R. Sempionatto, Jialu Yu, Ruixiao Liu, Connor Wicker, Alexander Trifonov, Fangyu Zhang, Hongjie Hu, Jose R. Moreto, Jaekyung Go, Sheng Xu, Joseph Wang
Summary: This study presents a stretchable epidermal sweat sensing platform that integrates a stretchable battery and a low-power digital electrochromic display. The platform can operate independently and directly display the concentration of electrolytes or metabolites in sweat without the need for external connections. It demonstrates stability and resistance to mechanical deformation.
NATURE ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Gurneet Kaur, Jagan Singh Meena, Manjeet Jassal, Ashwini K. Agrawal
Summary: This study proposes a simple and cost-effective method to enhance the piezoelectric effect of PVDF by mixing a small amount of PU in PVDF-PU nanofibers. This method improves the stretchability and mechanical stability of PVDF-based piezoelectric nanogenerators, making them more suitable for harvesting energy from human articular motions. By integrating stretchable electrodes with the S-PENG device, the designed nanogenerator demonstrates excellent electrical and mechanical stability.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Claire Preston, Yuta Dobashi, Ngoc Tan Nguyen, Mirza Saquib Sarwar, Daniel Jun, Ccdric Plesse, Xavier Sallenave, Frederic Vidal, Pierre-Henri Aubert, John D. W. Madden
Summary: This article mainly introduces the low power consumption of electrochromism in actively shaded windows and mirrors, as well as its flexibility for use in wearable devices. By combining conductive and electrochromic ionic liquid-doped poly-(3,4-ethylenedioxythiophene) polystyrene sulfonate with poly-(vinyl alcohol)-based electrolyte, complete electrochromic devices are formed. These devices demonstrate a transmission change of 15% and a reflectance change of 25% for opaque reflective applications, with a switching time of less than 7 seconds under 30% strain. The devices also show stability under both electrochemical and mechanical strain cycling, and a passive matrix display exhibits addressability and low cross-talk under strain. The comparable optical performance to flexible electrochromics and higher deformability make them attractive for wearable, biometric monitoring, and robotic skin devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Hyelim Lee, Jaepyo Jang, Jaebeom Lee, Mikyung Shin, Jung Seung Lee, Donghee Son
Summary: Skin, as a dynamic surface, can provide essential information through bio-signals. In this study, a chitosan-alginate-chitosan (CAC) triple hydrogel layer was used as an interface to enhance ionic conductivity and skin adhesiveness. The electrodes with CAC triple hydrogel layer showed high signal-to-noise ratio (SNR) and clear PQRST peaks in monitoring human electrocardiogram signal.
Article
Biotechnology & Applied Microbiology
Xi Tang, Yuanzhe Dong, Qingge Li, Zhiyuan Liu, Nan Yan, Yongcheng Li, Bin Liu, Lelun Jiang, Rong Song, Yingying Wang, Guanglin Li, Peng Fang
Summary: In this study, a microneedle array electrode (MAE) was fabricated using a magnetization-induced self-assembly method. Compared to traditional metal-based flat array electrodes (FAE), MAEs showed significantly lower and more stable electrode-skin interface impedance, higher signal-to-noise ratio (SNR) and motion-intention classification accuracy. The successful sensation evoking also demonstrated the feasibility of the MAE-based electrical stimulation for sensory feedback. This study confirms the application potential of MAEs as an effective neural interface for human-machine interaction (HMI), providing technical support for its development.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Yiqun Liu, Qi Yu, Xiaojin Luo, Li Yang, Yue Cui
Summary: The study demonstrated the continuous monitoring of diabetes using an integrated microneedle biosensing device, which showed accurate sensing performance by inserting into the dermis layer of mouse skin and yielded detection results highly correlated with those from a commercial blood glucose meter.
MICROSYSTEMS & NANOENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Xiaopan Song, Ting Zhang, Lei Wu, Ruijin Hu, Wentao Qian, Zongguang Liu, Junzhuan Wang, Yi Shi, Jun Xu, Kunji Chen, Linwei Yu
Summary: This research demonstrates a fabrication method for large-area stretchable electronics using silicon nanowire field effect transistors (SiNW-FETs). By utilizing the solid-liquid-solid mechanism, SiNW channels can be precisely grown onto elastomers and transferred onto large-area substrates. The SiNW-FETs exhibit high performance and stability, making them promising for future flexible display and wearable electronic applications.
Review
Chemistry, Multidisciplinary
Tuan Kien Nguyen, Sadegh Aberoumand, Dzung Viet Dao
Summary: This review discusses the latest advances and advantages of silicon-based and silicon carbide-based supercapacitors in the field of energy storage, as well as future research directions.
Article
Chemistry, Physical
Mingyu Kim, Hyosik Park, Mun Hwan Lee, Jin Woo Bae, Keun Young Lee, Ju Hun Lee, Ju-Hyuck Lee
Summary: Sandwich-like TENG components including PVC gel and graphene electrode are fabricated, which show excellent electrical outputs and stretchability. These stretchable and biocompatible TENGs have the potential to be integrated into the human body as self-powered touch sensors.
Article
Chemistry, Multidisciplinary
Sangkyu Lee, Kyumin Kang, Heewon Choi, Jiyong Yoon, Yewon Kim, Soojung An, Hyunjin Jung, Duhwan Seong, Kyuha Park, Hyoungwon Baac, Donghee Son
Summary: Soft bioelectronic systems with modulus matching to human skin have gained attention for their strain-insensitive electrical performance. In this study, a multifunctional device was developed through simple fabrication processes and showed stable performance on skin, making it a promising candidate for soft bioelectronic systems.
APPLIED SCIENCES-BASEL
(2021)
