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| 1 | Epidermal self-powered sweat sensors for glucose and lactate monitoring显示文摘Sweat could be a carrier of informative biomarkers for health status identification;therefore,wearable sweat sensors have attracted significant attention for research.An external power source is an important component of wearable sensors,however,the current power supplies,i.e.,batteries,limit further shrinking down the size of these devices and thus limit their application areas and scenarios.Herein,we report a stretchable self-powered biosensor with epidermal electronic format that enables the in situ detec-tion of lactate and glucose concentration in sweat.Enzymatic biofuel cells serve as self-powered sensing modules allowing the sweat sensor to exhibit a determination coefficient(R2)of 0.98 with a sensitivity of 2.48 mV/mM for lactate detection,and R2 of 0.96 with a sensitivity of 0.11 mV/μM for glucose detection.The microfluidic channels developed in an ultra-thin soft flexible polydimethylsiloxane layer not only enable the effective collection of sweat,but also provide excellent mechanical properties with stable performance output even under 30%stretching.The presented soft sweat sensors can be integrated at nearly any location of the body for the continuous monitoring of lactate and glucose changes during normal daily activities such as exercise.Our results provide a promising approach to develop next-generation sweat sensors for real-time and in situ sweat analysis. | Xingcan Huang Jiyu Li Yiming Liu Tszhung Wong Jingyou Su Kuanming Yao Jingkun Zhou Ya Huang Hu Li Dengfeng Li Mengge Wu Enming Song Shijiao Han Xinge Yu | 2022 | Bio-Design and Manufacturing2022，5，1： | 3 |
| 2 | Garment embedded sweat-activated batteries in wearable electronics for continuous sweat monitoring显示文摘Thin,soft,and skin-integrated electronic system has great advantages for realizing continuous human healthcare monitoring.Here,we report an ultra-thin,flexible,and garment-based microelectronics powered by sweat-activated batteries(SABs)and applications of powering biosensors and microelectronic systems for real time sweat monitoring.The SAB cell is ultra-thin(1.25 mm)with excellent biocompatibility.The SAB has good electricity output with high capacity(14.33 mAh)and maximum power density(3.17 mW cm^(−2))after being activated by the sweat volume of 0.045 mL cm^(−2),which could continuously power 120 light emitting diodes over 3 h.The outputs could maintain stable after repeatable bending.Wireless microelectronics system could be continuously powered by the SABs for 3 h to monitor sweat and physiological information,including sweat Na+concentration,pH,and skin impedance.The reported integrated system provides a potential for solving the power issues of flexible wearable electronics and realizing personalized medicine. | Xingcan Huang Yiming Liu Jingkun Zhou Sina Khazaee Nejad Tsz Hung Wong Ya Huang Hu Li Chun Ki Yiu Wooyoung Park Jian Li Jingyou Su Ling Zhao Kuanming Yao Mengge Wu Zhan Gao Dengfeng Li Jiyu Li Rui Shi Xinge Yu | 2022 | npj Flexible Electronics2022，6，1： | 1 |
| 3 | Muscle-inspired soft robots based on bilateral dielectric elastomer actuators显示文摘Muscle groups perform their functions in the human body via bilateral muscle actuation,which brings bionic inspiration to artificial robot design.Building soft robotic systems with artificial muscles and multiple control dimensions could be an effective means to develop highly controllable soft robots.Here,we report a bilateral actuator with a bilateral deformation function similar to that of a muscle group that can be used for soft robots.To construct this bilateral actuator,a low-cost VHB 4910 dielectric elastomer was selected as the artificial muscle,and polymer films manufactured with specific shapes served as the actuator frame.By end-to-end connecting these bilateral actuators,a gear-shaped 3D soft robot with diverse motion capabilities could be developed,benefiting from adjustable actuation combinations.Lying on the ground with all feet on the ground,a crawling soft robot with dexterous movement along multiple directions was realized.Moreover,the directional steering was instantaneous and efficient.With two feet standing on the ground,it also acted as a rolling soft robot that can achieve bidirectional rolling motion and climbing motion on a 2°slope.Finally,inspired by the orbicularis oris muscle in the mouth,a mouthlike soft robot that could bite and grab objects 5.3 times of its body weight was demonstrated.The bidirectional function of a single actuator and the various combination modes among multiple actuators together allow the soft robots to exhibit diverse functionalities and flexibility,which provides a very valuable reference for the design of highly controllable soft robots. | Yale Yang Dengfeng Li Yanhua Sun Mengge Wu Jingyou Su Ying Li Xinge Yu Lu Li Junsheng Yu | 2023 | Microsystems & Nanoengineering2023，9，5： | 0 |
| 4 | Heavy-Ion Radiation Stability of Gd_2Zr_2O_7-Pyrochlore Glass-Ceramic Wasteforms Doped by Simulated Actinides显示文摘To research the structure radiation stability of simulated Gd2Zr2O7-pyrochlore glass-ceramic wasteforms Nd3+, Ce4+ were selected as the simulated nuclide of An3+ and An4+ radionuclides respectively. A series of compounds with the general formula Gd2-xNdxZr2-xCexO7 (0.0≤ x ≤2.0) were prepared by High-temperature sintering method at 1623 K for 48 h in air atmosphere. The heavy-ion irradiation experiments were done at room temperature and atmospheric pressure. The structure and microscopic morphology of Gd2-xNdxZr2-xCexO7 (0.0≤ x ≤2.0) glass-ceramic wasteforms before and after irradiation experiments were investigated by the X-ray diffraction and scanning electron microscopy. | SU Sijin DONG Faqin LU Xirui TANG Jingyou WANG Xiaoli | 2013 | 矿物学报2013，33，S1： | 0 |
| 5 | Origami-inspired folding assembly of dielectric elastomers for programmable soft robots显示文摘Origami has become an optimal methodological choice for creating complex three-dimensional(3D)structures and soft robots.The simple and low-cost origami-inspired folding assembly provides a new method for developing 3D soft robots,which is ideal for future intelligent robotic systems.Here,we present a series of materials,structural designs,and fabrication methods for developing independent,electrically controlled origami 3D soft robots for walking and soft manipulators.The 3D soft robots are based on soft actuators,which are multilayer structures with a dielectric elastomer(DE)film as the deformation layer and a laser-cut PET film as the supporting flexible frame.The triangular and rectangular design of the soft actuators allows them to be easily assembled into crawling soft robots and pyramidal-and square-shaped 3D structures.The crawling robot exhibits very stable crawling behaviors and can carry loads while walking.Inspired by origami folding,the pyramidal and square-shaped 3D soft robots exhibit programmable out-of-plane deformations and easy switching between two-dimensional(2D)and 3D structures.The electrically controllable origami deformation allows the 3D soft robots to be used as soft manipulators for grasping and precisely locking 3D objects.This work proves that origami-inspired fold-based assembly of DE actuators is a good reference for the development of soft actuators and future intelligent multifunctional soft robots. | Yanhua Sun Dengfeng Li Mengge Wu Yale Yang Jingyou Su Tszhung Wong Kangming Xu Ying Li Lu Li Xinge Yu Junsheng Yu | 2022 | Microsystems & Nanoengineering2022，8，2： | 0 |
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