Conductive Peptide-Based MXene Hydrogel as a Piezoresistive Sensor

Dana Cohen-Gerassi, Or Messer, Gal Finkelstein-Zuta, Moran Aviv, Bar Favelukis, Yosi Shacham-Diamand, Maxim Sokol*, Lihi Adler-Abramovich*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Wearable pressure sensors have become increasingly popular for personal healthcare and motion detection applications due to recent advances in materials science and functional nanomaterials. In this study, a novel composite hydrogel is presented as a sensitive piezoresistive sensor that can be utilized for various biomedical applications, such as wearable skin patches and integrated artificial skin that can measure pulse and blood pressure, as well as monitor sound as a self-powered microphone. The hydrogel is composed of self-assembled short peptides containing aromatic, positively- or negatively charged amino acids combined with 2D Ti3C2Tz MXene nanosheets. This material is low-cost, facile, reliable, and scalable for large areas while maintaining high sensitivity, a wide detection range, durability, oxidation stability, and biocompatibility. The bioinspired nanostructure, strong mechanical stability, and ease of functionalization make the assembled peptide-based composite MXene-hydrogel a promising and widely applicable material for use in bio-related wearable electronics.

Original languageEnglish
Article number2303632
JournalAdvanced healthcare materials
Volume13
Issue number20
DOIs
StatePublished - 7 Aug 2024

Funding

FundersFunder number
Zimin Institute for Engineering Solutions Advancing Better Lives, Tel Aviv University
Colton Foundation
European Research Council
Horizon 2020948 102
Israel Science Foundation2527/22

    Keywords

    • 2D materials
    • biosensors
    • hydrogels
    • self-assembly
    • wearable electronics

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