A durable optical film includes a polymerized optical film structure having a microstructured surface and a scratch contrast ratio value in a range of 1.0 to 1.65 or 1.0 to 1.15. These durable optical films can include a plurality of nanoparticles and a rounded prism apexes microstructure.

 
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> Use of amphiphilic nucleoside phosphonoformic acid derivatives for the treatment of viral infectious diseases

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