Enhanced Sensitivity of Compliant Piezoresistive Sensors with Strain-Modulated Surface Hole Structures

Sensors and Actuators A Physical, Journal Year: 2025, Volume and Issue: unknown, P. 116344 - 116344

Published: Feb. 1, 2025

Language: Английский

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Bioinspired Durable Mechanical‐Bioelectrical Dual‐Modal Sensors Enabled by Mixed Ion‐Electron Conduction and Mechanical Interlocking for Multifunctional Sensing

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Abstract Skin‐like robust materials with prominent sensing performance have potential applications in flexible bioelectronics. However, it remains challenging to achieve mutually exclusive properties simultaneously including low interfacial impedance, high stretchability, sensitivity, and electrical resilience. Herein, a material structure design concept of mixed ion‐electron conduction mechanical interlocking is adopted fabricate high‐performance mechanical‐bioelectrical dual‐modal composites large excellent mechanoelectrical stability, good biocompatibility. Flower‐like conductive metal‐organic frameworks (cMOFs) enhanced conductivity through the overlapped level metal‐ligand orbital are assembled, which bridge carbon nanotubes (denoted as cMOFs‐ b ‐CNTs). Then, precursor poly(styrene‐ block ‐butadiene ‐block ‐styrene)/ionic liquid penetrates pores cavities ‐CNTs‐based network fabricated via filtration process, creating semi‐embedded interlocking. Thus, endow as‐prepared impedance (51.60/28.90 kΩ at 10/100 Hz), wide range (473%), sensitivity (2195.29), rapid response/recovery time (60/85 ms), limit detection (0.05%), durability (>5000 cycles 50% strain). Demonstrations multifunctional sensors for vivo/vitro monitoring physiological motions, electrophysiological activities, urinary bladder activities validate possibility practical uses biomedical research areas. This creates opportunities construction durable skin‐like materials.

Language: Английский

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Electric-Assisted Coaxial Wet Spinning of Radially Oriented Boron Nitride Nanosheet-Based Composite Fiber with Highly Enhanced Piezoelectricity

Advanced Fiber Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 16, 2025

Language: Английский

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Analysis of Thermoelastic Vibrations in Unbounded Viscoelastic Fiber-Reinforced Materials Using a Fractional MGT Model Under Periodic Pulsed Heating

Journal of Vibration Engineering & Technologies, Journal Year: 2025, Volume and Issue: 13(5)

Published: May 18, 2025

Language: Английский

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