An Implantable In‐Hydrogel Wireless Supercapacitor‐Activated Neuron System Enables Bidirectional Modulation DOI

X.D. Sheng,

Zhijian Du,

Zhiyi Gao

et al.

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

Published: April 21, 2025

Abstract The bidirectional modulation of cerebral neurons in the brain possesses enhancement and inhibition neural activity, which is great interest treatment motor nerve disorders emotional disorders, cognitive defects. However, existing approaches usually rely on electrical/electrochemical stimulations, show low security by implanting metal probes unidirectional currents with single modulation. Herein, an implantable in‐hydrogel wireless supercapacitor‐activated neuron system consisting coil, diode bridge circuit, supercapacitor, stimulation electrodes fabricated, provides a adjustable ion diffusion current to safely effectively excite inhibit neurons. designed supercapacitor exhibits high storage charge ability ≈90 times larger than devices without hydrogel encapsulation, owing situ radical addition mechanism. Moreover, are implanted into thalamus, amygdala, prefrontal lobes evoke corresponding changes potential intensity frequency through external chargeable coil verifies multimodule amelioration Parkinson's, severe depression, Alzheimer's disease.

Language: Английский

Intelligent Robotic Sensory System with Epidermis‐Dermis Bionic Electronic Skin for Autonomous Hardness/Softness‐Based Material Perception DOI Open Access
Hongsen Niu, Hao Li, Ning Li

et al.

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

Published: March 24, 2025

Abstract Traditional electronic skin (e‐skin), due to the lack of human‐skin‐like complex sensitive structures and their derived autonomous perception decision‐making capabilities tactile nervous system, makes it difficult achieve performance deep‐level intelligence comparable human skin. Herein, a soft/hardware‐synergy‐motivated epidermis‐dermis bionic (EDB) e‐skin is proposed, inspired by interlaced papillary projections between epidermis dermis. Benefiting from interlocked microdome iontronic effect, EDB exhibits maximum sensitivity 1558.3 kPa −1 (<1 kPa), low limit detection <0.01 Pa, fast response/recovery time <5.6 ms. In addition, feasibility hardness/softness‐based material technology verified through test results COMSOL finite element analysis. Further, after being equipped with “tactile system”, that is, hardware functional modules terminal artificial neural networks, an intelligent robotic sensory system integrated fingertips developed. With single touch, this can autonomously in real‐time perceive different materials, achieving abilities those humans.

Language: Английский

Citations

1
Five-Cavity Resonance Inspired, rGO Nano-Sheet Reinforced, Multi-Site Voice Synergetic Detection Hydrogel Sensors with Diverse Self-Adhesion and Robust Wireless Transmissibility DOI Creative Commons
Yue Wu, Kewei Zhao,

J.C. Wang

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(4), P. 233 - 233

Published: March 23, 2025

The practical application of flexible sensors in sound detection is significantly hindered by challenges such as information isolation, fragmentation, and low fidelity. To address these challenges, this work developed a composite hydrogel via one-pot method, employing polyvinyl alcohol (PVA) the first network, polyacrylic acid (PAA) second two-dimensional nanomaterials—reduced graphene oxide (rGO)—generated through redox reaction polydopamine (PDA) (GO) conductive fillers. uniformly distributed rGO within forms an efficient endowing material with high sensitivity (GF = 0.64), excellent conductivity (8.15 S m−1), rapid response time (350 ms), outstanding stability. synergistic interaction between PDA PAA modulates hydrogel’s adhesion (0.89 kPa), enabling conformal attachment to skin surfaces. designed rGO@PVA-PAA hydrogel-based sensor effectively monitors vibrations across diverse frequencies originating from five vocal cavities (head, nasal, oral, laryngeal, thoracic cavities) during singing. Integrated multi-position synchronization Bluetooth wireless sensing technologies, system achieves coordinated monitoring multiple cavities. Furthermore, demonstrates versatility detecting physiological signals, including electrocardiograms, subtle vibrations, multi-scale body movements, highlighting its broad applicability biomedical motion-sensing applications.

Language: Английский

Citations

0
A novel strategy for preparing gradient hydrogels based on density difference-driven bidirectional self-growth DOI
Yang Yu, Weikun Jiang, Honglei Chen

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161936 - 161936

Published: March 1, 2025

Language: Английский

Citations

0
2D In‐Plane Mesoporous N‐Doped Carbon for Co‐Planar Integrated Microsystem of Micro‐Supercapacitor and Pressure Sensor DOI Open Access
Jieqiong Qin,

Wenbei Bo,

Pratteek Das

et al.

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: March 30, 2025

Abstract The rapid evolution of next‐generation portable, wearable and implantable electronics has increased the demand for multi‐functional materials flexible miniaturized integrated microsystems micro‐supercapacitors (MSCs) sensors. To address this urgent need, a dual‐template interfacial assembly strategy is proposed to fabricate 2D in‐plane mesoporous N‐doped carbon (imNC) as dual‐functional in both MSCs pressure sensors, achieving co‐planar microsystem. as‐prepared imNC nanosheets feature adjustable mesopore size (7.3 – 23.2 nm), specific surface area (222 413 m 2 g −1 ) nitrogen content (3.8% 5.9%). relationship between size/nitrogen composition electrochemical performance are established. Subsequently, imNC‐based employing ionogel electrolyte delivere wide operating voltage 3.8 V, high areal energy density 41.9 µWh cm −2 excellent flexibility with negligible capacitance loss over 2000 bending cycles, along tunable current output through multi‐device integration. More importantly, one MSC can readily power an sensor on same substrate monitoring various pressures vibrations, verifying dual‐functionality This work provides broad platform creating towards

Language: Английский

Citations

0
From preparation to application: Functional carrageenan-based hydrogels for biomedical and sensing uses DOI

Yihan Yan,

Shenghua Lv,

Yuanyuan Qiang

et al.

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 45, P. 102668 - 102668

Published: April 1, 2025

Language: Английский

Citations

0
Biomimetic Self-Powered Smart Insole with AI-Enhanced Mechanodiagnosis for Continuous Gait Monitoring DOI

Feng Xu,

Yingchun Li,

Yarong Ding

et al.

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

Published: April 1, 2025

Abstract Continuous gait analysis is essential for early detection and management of neuromuscular disorders, yet current wearable technologies face limitations in sensing capacity, energy autonomy, real-time diagnostic capabilities, restricting their clinical adoption. Here, we present a biomimetic smart insole that synergizes nature-inspired sensing, self-sustaining harvesting, artificial intelligence (AI) to enable continuous, clinically actionable monitoring. Mimicking the mechanosensory architecture mantis legs, our dual-microstructure capacitive sensor achieves sensitivity 0.602 kPa⁻¹, limit 0.10 Pa, broad range (0.10 Pa–1.40 MPa) with exceptional durability (>12,000 cycles), outperforming state-of-the-art sensors. A custom-designed flexible circuit wirelessly streams 16-channel pressure data companion APP, providing visualization dynamic force fields through chromatic mapping. The system’s autonomy ensured by hybrid perovskite solar cell/lithium-sulfur battery, enabling continuous operation across diverse environments. An embedded AI framework combines random forest classifier (96% accuracy foot arch abnormality detection) convolutional neural network (97.6% classifying 12 pathological patterns), translating raw into insights. This platform bridges gap between precision diagnostics, offering transformative potential disease detection, personalized rehabilitation, telemedicine, thus establishing paradigm next-generation intelligent wearables global healthcare.

Language: Английский

Citations

0
A highly conductive, self-adhesive, freeze-resistant organohydrogel for flexible strain sensors with an ultra-wide strain range and high sensitivity DOI
Na Qu, Wei Zhou,

Tenghao Lin

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136778 - 136778

Published: March 1, 2025

Language: Английский

Citations

0
Development of a shear strengthening conductive hydrogel for impact protection and distress signal emission DOI
Juan Tan, Xi Li, Ce Zheng

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162280 - 162280

Published: April 1, 2025

Language: Английский

Citations

0
An Implantable In‐Hydrogel Wireless Supercapacitor‐Activated Neuron System Enables Bidirectional Modulation DOI

X.D. Sheng,

Zhijian Du,

Zhiyi Gao

et al.

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

Published: April 21, 2025

Abstract The bidirectional modulation of cerebral neurons in the brain possesses enhancement and inhibition neural activity, which is great interest treatment motor nerve disorders emotional disorders, cognitive defects. However, existing approaches usually rely on electrical/electrochemical stimulations, show low security by implanting metal probes unidirectional currents with single modulation. Herein, an implantable in‐hydrogel wireless supercapacitor‐activated neuron system consisting coil, diode bridge circuit, supercapacitor, stimulation electrodes fabricated, provides a adjustable ion diffusion current to safely effectively excite inhibit neurons. designed supercapacitor exhibits high storage charge ability ≈90 times larger than devices without hydrogel encapsulation, owing situ radical addition mechanism. Moreover, are implanted into thalamus, amygdala, prefrontal lobes evoke corresponding changes potential intensity frequency through external chargeable coil verifies multimodule amelioration Parkinson's, severe depression, Alzheimer's disease.

Language: Английский

Citations

0