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Polyurethane polymer sheets were embedded with methylene blue (MB), toluidine blue (TBO) and 2nm gold nanoparticles by a swell–shrink encapsulation process using an acetone water mixture. The polymers were characterised by IR, UV–vis, SEM/WDX and mechanical testing. The dye impregnated polymers were potent at killing suspensions of Staphylococcus aureus under white illumination with a hospital light...
We report the formation of polysiloxane polymers containing embedded methylene blue and gold nanoparticles incorporated by a swell-encapsulation-shrink method. These polymers show significant antimicrobial activity against methicillin-resistant Staphylococcus aureus and Escherichia coli with up to a 3.5 log 10 reduction in the viable count when exposed for 5min to light from a low power 660nm...
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