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Chitosan thin films with controlled thickness have been fabricated by spin-coating chitosan acetate and citrate solutions for application as planar optical waveguides (POW). “In situ” reduction of preadsorbed in chitosan film Ag + ions with sodium borohydride resulted in formation of chitosan/Ag composites, in which silver nanoparticles of a size below 10nm were homogeneously distributed....
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