Bionic Recognition Technologies Inspired by Biological Mechanosensory Systems

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

Published: Jan. 21, 2025

Abstract Mechanical information is a medium for perceptual interaction and health monitoring of organisms or intelligent mechanical equipment, including force, vibration, sound, flow. Researchers are increasingly deploying recognition technologies (MIRT) that integrate acquisition, pre‐processing, processing functions expected to enable advanced applications. However, this also poses significant challenges acquisition performance efficiency. The novel exciting mechanosensory systems in nature have inspired us develop superior bionic (MIBRT) based on materials, structures, devices address these challenges. Herein, first strategies pre‐processing presented their importance high‐performance highlighted. Subsequently, design considerations sensors by mechanoreceptors described. Then, the concepts neuromorphic summarized order replicate biological nervous system. Additionally, ability MIBRT investigated recognize basic information. Furthermore, further potential applications robots, healthcare, virtual reality explored with view solve range complex tasks. Finally, future opportunities identified from multiple perspectives.

Language: Английский

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Higher-order topological SAW devices towards topological signal filtering and processing

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Topological crystals provide a transformative platform for chip-scale signal processing, offering exceptional robustness, precise wave manipulation, and ultra-compact integration. However, their extension to phononics, particularly controlling surface acoustic (SAW), has thus far been limited lower-order topological states. This restriction confines functionality primarily protected transport while lacking essential features such as frequency-domain tunability, multifunctionality—key challenges that severely hinder adaptability potential revolutionize processing devices. To fill this gap, we experimentally demonstrate higher-order SAW device capable of both time-domain processing. By leveraging coupling effects, achieve multimode coordination significantly enhance enabling control over leakage suppression, blocking, selective conduction within an footprint. More importantly, our system exhibits order-of-magnitude improvement in stability compared conventional phononic crystals, with minimal resonance shifts (~ 0.1%) even under 6% structural deformation. Our work establishes crucial bridge between fundamental physics practical devices, paving the way processors advancing circuits, acoustoelectric integration, AI-driven technologies.

Language: Английский

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Fabrication, structural regulation and future applications of acoustic polymer materials: A review

Applied Materials Today, Journal Year: 2025, Volume and Issue: 44, P. 102709 - 102709

Published: April 8, 2025

Language: Английский

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Multiscale Interconnected and Anisotropic Morphology Genetic Piezoceramic Skeleton Based Flexible Self‐Powered 3D Force Sensor

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

Published: April 15, 2025

Abstract Inner‐wall fibers of natural loofah exhibit a macroscopic anisotropic network and microscopic 3D interconnected porous structure. Such unique multiscale structure is highly desired for enhancing the sensing capacities piezoelectric sensors under multi‐modal stress, big challenge existing devices but crucial next‐generation wearable electronics human‐machine interaction. Herein, morphology genetic piezoceramic skeleton composite sensor featuring presented, demonstrating excellent capability multidirectional stress. Simulation results indicate that improves stress transfer efficiency fully filled polymer prevents skeletons from collapsing high thereby endowing device with low detection limit (0.2 kPa), broad range ‐ 325.6 sensitivity (241.12 mV kPa −1 ) in compression mode. Meanwhile, displays anisotropy exceptional stretchability (≈45% strain), enabling simultaneous deformation magnitude direction bending The symmetrical integrated design ensures stable output over 300 000 cycles both modes. Furthermore, novel successfully employed comprehensive assessment cardiovascular health quantitative identification elastic modulus objects, enormous potential monitoring robotic intelligent perception.

Language: Английский

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Flutter behavior of functionally graded graphene origami-reinforced auxetic metamaterial composite laminated plates in supersonic flow

Engineering Structures, Journal Year: 2025, Volume and Issue: 336, P. 120318 - 120318

Published: April 24, 2025

Language: Английский

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