Dataset Information

Skin Electronics from Biocompatible In Situ Welding Enabled By Intrinsically Sticky Conductors.

ABSTRACT: Welding usually involves high temperatures, toxic solvents, or conditions not compatible with human bodies, which severely limit the fusion of electronics and human tissues. To achieve direct welding of electronics on human skin, the intrinsically sticky conductors that can simultaneously achieve metal-grade electrical conductivity (≈41 7000 S m^-1 ), hydrogel-grade stretchability (>900% strain), and self-adhesiveness (1.8 N cm^-1 ) are reported. The sticky conductors composed of gallium indium alloy and acrylate polymer adhesives have a surface-enriched structure, which can form instant mechanical and electrical connections with different surfaces through gentle pressure without involving conditions that may damage human tissues. Based on the sticky conductors, the in situ welding of electronics on the skin is realized. To demonstrate the feasibility of in situ welding, electronic tattoos are achieved for movement monitoring. Intrinsically sticky electrodes that can resist drying and simultaneously deform with the skin for electrophysiological measurement are also developed.

SUBMITTER: Tang L

PROVIDER: S-EPMC9376824 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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Skin Electronics from Biocompatible In Situ Welding Enabled By Intrinsically Sticky Conductors.

Tang Lixue L Yang Shuaijian S Zhang Kuan K Jiang Xingyu X

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 20220626 23

Welding usually involves high temperatures, toxic solvents, or conditions not compatible with human bodies, which severely limit the fusion of electronics and human tissues. To achieve direct welding of electronics on human skin, the intrinsically sticky conductors that can simultaneously achieve metal-grade electrical conductivity (≈41 7000 S m<sup>-1</sup> ), hydrogel-grade stretchability (>900% strain), and self-adhesiveness (1.8 N cm<sup>-1</sup> ) are reported. The sticky conductors compose ...[more]

PMID: 35754311

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Project description:The persistent challenge of biofouling, driven by the accumulation of microorganisms and biological residues on surfaces, undermines operational efficiency and safety across multiple industries. Functionalized peptide based biocompatible and supramolecular coating can provide a substantial solution to this crucial issue. This present study describes the formation of polydopamine-comprised sticky tubes through the co-assembly of an antifouling peptide P1 (FF-PFB) and Polydopamine Nanoparticles (PDA NPs) with an adhesive catechol moiety. To overcome the synthetic complications associated with the attachment of adhesive l-DOPA or dopamine with antifouling peptides, we have employed a simple co-assembly strategy. These co-assembled sticky tubes form a stable, biocompatible coating on desired surfaces (glass and aluminium) and resist fouling. The design consists of a diphenylalanine-based antifouling peptide covalently coupled with pentafluoro benzaldehyde (PFB), which could self-assemble into a stable functional coating through the adhesive catechol moiety of PDA NPs. This functional coating effectively resists bacterial and protein adhesion. These sticky tubes coated desired surfaces (glass and aluminium) exhibit excellent antifouling activity against both tested Gram (+)ve (S. aureus) and Gram (-)ve (E. coli) bacterial strains. More importantly, this simple co-assembly and drop-coating method has significant promise, primarily attributed to its simplicity of operation, which reduces production costs and expands the potential for widespread commercialization. This study not only contributes to the fundamental understanding of the antifouling process but also offers a practical and sustainable solution to the challenges caused by biofouling. Our findings, achieved through the simple and effective co-assembly strategy with two different functional components, pave the way for developing promising antifouling materials with broad applications in industries where effective biofouling resistance is crucial.

Dataset Information

Skin Electronics from Biocompatible In Situ Welding Enabled By Intrinsically Sticky Conductors.

Publications

Skin Electronics from Biocompatible In Situ Welding Enabled By Intrinsically Sticky Conductors.

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