DNA bioinspired by polyvinyl alcohol -MXene-borax hydrogel for wearable skin sensors

In recent years, the world of wearable technology has witnessed groundbreaking advancement with the development of hydrogels in transdermal skin wearable patches. However, it remains a huge challenge to develop hydrogel-based wearable skin-like sensors with superconductivity, high sensitivity, and self-healing properties. On the other hand, the use of biomaterials such as borax hydrogel in wearable technology enables the development of flexible but not with excellent electrical conductivity and tensile strain. Here, we introduce a novel DNA bioinspired by PVA-AuNP-DNA-MB-MXene (PADMM)-borax hydrogel, which could bring both improve properties of the highly strain sensitive (GF = 4.9), self-healing (within 10 min, 93 % healing efficiency), and excellent antibacterial activity. Here, the ion conductivity and antimicrobial effects could be improved by the synergistic effect of AuNPs and the MB effect in the network of DNA bioinspired of PADMM-borax hydrogel. Evaluation of PADMM-borax hydrogel was compared to the PVA-MB-DNA-MB-MXene-borax hydrogel (PMDMM)-borax and PVA-MXene (PM)-borax hydrogels as a control. Our hydrogel showed perfect ability as a wearable skin-like sensor to monitor human movement, including deformations (finger, elbow, wrist, mouth movement) in real time. Thus, our DNA-bioinspired PADMM-borax hydrogel as a wearable skin sensor combines therapy appeal with strong functionality as a transparent patch, opening up a world of possibilities in various industries for personalized healthcare monitoring. Schematic graphic of multi integrated DNA bioinspired PADMM-borax hydrogel. a) Mixture of AuNP-PVA. b) Stirring of AuNP-PVA with sH-DNA-MB. c)Stirring of AuNP-PVA-DNA-MB. D) Formation of PADMM-borax hydrogel by adding borax. • PADMM-borax hydrogel as a novel DNA bioinspired material, which represents a significant advancement in the field of skin wearable technology. • improving the properties of the highly strain sensitive (GF = 4.9), self-healing (within 10 min, 93 % healing efficiency), and excellent antibacterial activity. • PADMM-borax hydrogel as a wearable skin sensor combines therapy appeal with strong functionality as a transparent patch.