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Highly Conductive, Ultratough, and Adhesive Eutectogels with Environmental Tolerance Enabled by Liquid Metal Composites.
Small
January 2025
School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China.
Eutectogels are recently emerged as promising alternatives to hydrogels owing to their good environmental stability derived from deep eutectic solvents (DES). However, construction of competent eutectogels with both high conductivity and mechanical toughness is still difficult to achieve yet highly demanded. In this work, new LMNP-PEDOT-CMC-AA (LPCA) eutectogels are prepared using acrylic acid (AA) and carboxymethylcellulose sodium (CMC) as polymeric networks, liquid metal nanoparticle-poly(3,4-ethylenedioxythiophene) (LMNP-PEDOT) are added as multifunctional soft fillers.
View Article and Find Full Text PDFStretchable AgS-MXene Photodetector Designed for Enhanced Electrical Durability and High Sensitivity.
ACS Appl Mater Interfaces
January 2025
Advanced Materials Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea.
In this work, we present a facile and straightforward approach for fabricating highly stretchable photodetectors based on AgS and TiCT MXene hybrid materials. These devices exhibit exceptional mechanical resilience, maintaining stable electrical and optical performance even after 10 000 cycles of 30% strain. The incorporation of MXene not only enhances the device's electrical durability but also ensures the retention of conductivity under significant mechanical deformation, positioning MXene as a critical material for the advancement of flexible electronics.
View Article and Find Full Text PDFDome-Structure Array from Pre-Strained Extendable Mesh for Tactile Sensing Without Crosstalk and Lateral Strain Interference.
Small Methods
January 2025
School of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
Flexible tactile sensors have received significant attention for use in wearable applications such as robotics, human-machine interfaces, and health monitoring. However, conventional tactile sensors face challenges in accurately measuring pressure because vertical deformation is induced by Poisson's ratio in situations where lateral strain is applied. This study shows a strain-insensitive flexible tactile sensor array without the crosstalk effect using a highly stretchable mesh.
View Article and Find Full Text PDFMuscle Fiber-Inspired High-Performance Strain Sensors for Motion Recognition and Control.
Langmuir
January 2025
Henan Province Engineering Technology Research Center of MEMS Manufacturing and Applications, School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China.
The rapid development of wearable technology, flexible electronics, and human-machine interaction has brought about revolutionary changes to the fields of motion analysis and physiological monitoring. Sensors for detecting human motion and physiological signals have become a hot topic of current research. Inspired by the muscle fiber structure, this paper proposed a highly stable strain sensor that was composed of stretchable Spandex fibers (SPF), multiwalled carbon nanotubes (MWCNTs), and silicone rubber (Ecoflex).
View Article and Find Full Text PDFStretchable wrinkle-structured liquid metal sandwich films enable strain-insensitive electromagnetic shielding and Joule heating.
Mater Horiz
January 2025
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang province, 315201, China.
Stretchable electromagnetic interference (EMI) shields with strain-insensitive EMI shielding and Joule heating performances are highly desirable to be integrated with wearable electronics. To explore the possibility of applying geometric design in elastomeric liquid metal (LM) composites and fully investigate the influence of LM geometry on stretchable EMI shielding and Joule heating, multifunctional wrinkle-structured LM/Ecoflex sandwich films with excellent stretchability are developed. The denser LM wrinkle enables not only better electrical conduction, higher shielding effectiveness (SE) and steady-state temperature, but also enhanced strain-stable far-field/near-field shielding performance and Joule-heating capability.
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