Artificially Weaved Textile‐like Surface Micromachined Graphene‐Polymer Flexible Bioelectrodes DOI Creative Commons

Seba Nur Alhasan,

S. Sajjad Mirbakht,

Saygun Guler

et al.

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

Published: April 5, 2025

Abstract Dry, flexible, and self‐adhesive sensors are critical enablers for wearable, long‐term biosignal recording devices. Here, an ultra‐thin, flexible textile‐like microstructured electrode with abilities is presented conformal attachment electrocardiography (ECG) recording. The reported manufactured using a spin‐coatable electron‐beam sensitive formulation of poly (methyl methacrylate) (PMMA) resist, also commonly known as acrylic, which at the same time widely‐employed material in textile industry. structure bioelectrodes linewidth 100 µm gap size achieved by patterning PMMA through oxygen plasma hard mask layer without requiring complex expensive e‐beam lithography (EBL) processes. Graphene oxide (GO) introduced to electrodes active followed reduction step eco‐friendly pure vitamin C (L‐ascorbic acid). functionality benchmarked against pre‐gelled wet Ag/AgCl electrodes, comparing their signal quality skin‐electrode impedance, achieving correlation score 98.84%. Furthermore, it demonstrated that water resistant, can be used multiple times; rendering them suitable wearable electronics purposes even during intense physical activities both dry environments.

Language: Английский

Autonomous Bioelectronic Devices Based on Silk Fibroin DOI Open Access
Yanling Wang, Xue Feng, Xiaodong Chen

et al.

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

Published: March 23, 2025

Abstract The development of autonomous bioelectronic devices capable dynamically adapting to changing biological environments represents a significant advancement in healthcare and wearable technologies. Such systems draw inspiration from the precision, adaptability, self‐regulation processes, requiring materials with intrinsic versatility seamless bio‐integration ensure biocompatibility functionality over time. Silk fibroin (SF) derived Bombyx mori cocoons, has emerged as an ideal biomaterial unique combination biocompatibility, mechanical flexibility, tunable biodegradability. Adding features into SF, including self‐healing, shape‐morphing, controllable degradation, enables dynamic interactions living tissues while minimizing immune responses mismatches. Additionally, structural tunability environmental sustainability SF further reinforce its potential platform for adaptive implants, epidermal electronics, intelligent textiles. This review explores recent progress understanding structure–property relationships modification strategies, great integration advanced addressing challenges related scalability, reproducibility, multifunctionality. Future opportunities, such AI‐assisted material design, scalable fabrication techniques, incorporation wireless personalized technologies, are also discussed, positioning key bridging gap between artificial

Language: Английский

Citations

0
Artificially Weaved Textile‐like Surface Micromachined Graphene‐Polymer Flexible Bioelectrodes DOI Creative Commons

Seba Nur Alhasan,

S. Sajjad Mirbakht,

Saygun Guler

et al.

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

Published: April 5, 2025

Abstract Dry, flexible, and self‐adhesive sensors are critical enablers for wearable, long‐term biosignal recording devices. Here, an ultra‐thin, flexible textile‐like microstructured electrode with abilities is presented conformal attachment electrocardiography (ECG) recording. The reported manufactured using a spin‐coatable electron‐beam sensitive formulation of poly (methyl methacrylate) (PMMA) resist, also commonly known as acrylic, which at the same time widely‐employed material in textile industry. structure bioelectrodes linewidth 100 µm gap size achieved by patterning PMMA through oxygen plasma hard mask layer without requiring complex expensive e‐beam lithography (EBL) processes. Graphene oxide (GO) introduced to electrodes active followed reduction step eco‐friendly pure vitamin C (L‐ascorbic acid). functionality benchmarked against pre‐gelled wet Ag/AgCl electrodes, comparing their signal quality skin‐electrode impedance, achieving correlation score 98.84%. Furthermore, it demonstrated that water resistant, can be used multiple times; rendering them suitable wearable electronics purposes even during intense physical activities both dry environments.

Language: Английский

Citations

0