The growth and reproduction of microorganisms on protective textiles pose a serious threat to personal health and public hygiene. However, the facile fabrication of textiles that integrate multiple antibacterial modes to achieve excellent antimicrobial performance remains challenging. In the present work, a dual-functional antibacterial textile with superhydrophobicity and photothermal effect was proposed through the introduction of a MXene layer and modification with hydrophobic silica/hexadecyltrimethoxysilane (HDTMS/HSiO 2 ) coating. Benefitting from the uniform and compact HDTMS/HSiO 2 -MXene coatings with crosslinkable structure and hierarchical roughness, the textile possessed durable superhydrophobicity, effectively resisting chemical and mechanical damages. Importantly, the MXene layer endowed the textile with excellent photothermal conversion capability, with the surface temperature stably increasing to over 110 °C under the cyclic irradiation of near-infrared (NIR) light. Integrating the anti-adhesion behavior of superhydrophobic surface with biocidal activity induced by heat energy, the textile achieved excellent antimicrobial performance with the antibacterial rate exceeding 99.8 % against various bacteria. The findings conceivably clarify a new methodology to fabricate robust photothermal superhydrophobic textiles for dealing with bacterial infection on health protective clothing through the synergistic “repel-and-kill” mechanism.
With the rapid development of wearable electronic skin technology, flexible strain sensors have shown great application prospects in the fields of human motion and physiological signal detection, medical diagnostics, and human-computer interaction owing to their outstanding sensing performance. This paper reports a strain sensor with synergistic conductive network, consisting of stable carbon nanotube dispersion (CNT) layer and brittle MXene layer by dip-coating and electrostatic self-assembly method, and breathable three-dimensional (3D) flexible substrate of thermoplastic polyurethane (TPU) fibrous membrane prepared through electrospinning technology. The MXene/CNT@PDA-TPU (MC@p-TPU) flexible strain sensor had excellent air permeability, wide operating range (0–450%), high sensitivity (Gauge Factor, GF max = 8089.7), ultra-low detection limit (0.05%), rapid response and recovery times (40 ms/60 ms), and excellent cycle stability and durability (10000 cycles). Given its superior strain sensing capabilities, this sensor can be applied in physiological signals detection, human motion pattern recognition, and driving exoskeleton robots. In addition, MC@p-TPU fibrous membrane also exhibited excellent photothermal conversion performance and can be used as a wearable photo-heater, which has far-reaching application potential in the photothermal therapy of human joint diseases.
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