Bioinspired Multifunctional Carbon Platforms Decorated with MoS₂/Au Nanohybrids for Integrated Antibacterial and...

The dilemma of biological contamination and radiation pollution deriving from the widely used implantable monitor equipment and wearable electronics promotes the growing demand for integrated biological and electromagnetic protection materials. This work proposes Oxalis-mimicking nanosheet arrays of MoS₂/Au on carbon cloth (CC@MoS₂/Au) to exert a "kill three birds with one stone" effect. First, the biomimetic architecture imparts the planar substrate with mechano-bactericidal property, which is dependent on attractive interactions between sharp edges and adhered bacteria. Second, the integration of MoS₂/Au nanohybrids triggers a photo-bactericidal mode, and the coupling of Au nanoparticles guarantees smooth fulfillment for higher photocatalytic efficacy. Such a synergistic action allows for a nearly 100% inactivation efficiency toward E. coli and S. aureus. Third, the engineered CC@MoS₂/Au exhibits electromagnetic interference shielding effectiveness exceeding 40 dB in X band, equivalent to 99.99% impeding of incident waves. This work reported here to design of multifunctional platforms with antibacterial and electromagnetic interference shielding performance, which may create a powerful support to mitigate the issues of biological contamination and electromagnetic pollution in the field of modern healthcare.