27 January 2017 Nonlinear optics, optomechanics, and antibacterial coating by graphene oxide
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Antibacterial items are one of the major queries from the medical community in the fight against medical infections. Indeed, bacteria are resistant and their multiplication and biofilm formation on devises are one of the major causes of infections. Finding antibacterial surfaces, which are biocompatible, cost-effective, not toxic, and spreadable over large and irregular surfaces, is not easy. However, we created an antibacterial cloak by laser printing of Graphene Oxide (GO) hydrogels by mimicking the Cancer Pagurus carapace. This surface provides up to 90% reduction of bacteria cells through a bacteriostatic and bactericidal effect. Indeed, Laser treating allows GO sheets gel to cut and wrap microorganisms. Our findings are confirmed by a theoretical active matter model. This new technology based on antibiotic-free biomimetic Graphene Oxide gels opens untrodden roads to the fight against infections in biomedical applications and chirurgical equipment.
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Carlotta Ciancico, Maria Chiara Braidotti, Silvia Gentilini, Rade Prizia, Neda Ghofraniha, Luca Angelani, Valentina Palmieri, Francesca Bugli, Marco De Spirito, Maurizio Sanguinetti, Massimiliano Papi, Claudio Conti, "Nonlinear optics, optomechanics, and antibacterial coating by graphene oxide", Proc. SPIE 10111, Quantum Sensing and Nano Electronics and Photonics XIV, 1011121 (27 January 2017); doi: 10.1117/12.2250513; https://doi.org/10.1117/12.2250513

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