Jump to main content
Jump to site search

Issue 71, 2016, Issue in Progress
Previous Article Next Article

Deposition of a hydrophilic nanocomposite-based coating on silicone hydrogel through a laser process to minimize UV exposure and bacterial contamination

Author affiliations

Abstract

To prevent contact lens from biofouling and to minimize UV exposure to human eyes, a nanocomposite-based coating made of silver (Ag) nanoparticles and polyvinylpyrrolidone (PVP) is deposited on synthetic silicone hydrogels through matrix assisted pulsed laser evaporation (MAPLE) with a pulsed Nd:YAG laser at 532 nm. The average diameter of Ag NPs that have undergone the MAPLE process for 60 min is 11.61 ± 3.58 nm. The thickness of the Ag–PVP nanocomposite coating with a deposition time of 60 min is around 930 ± 15 nm. Our results demonstrate that the oxygen permeability of silicone hydrogel with a nanocomposite coating is similar to that of commercialized contact lenses; over 60% of UV light in the range of 300–450 nm can be blocked. Moreover, the silicone hydrogel with the nanocomposite coating can reduce over 65.4 ± 1.6% of protein (human lysozyme) absorption as compared to silicone hydrogel-based contact lens, and kill all cultured bacteria in 8 hours. This research work demonstrates a new way to deposit biocompatible nanocomposite coatings on silicone hydrogels used as contact lens to efficiently minimize UV exposure and biofouling.

Graphical abstract: Deposition of a hydrophilic nanocomposite-based coating on silicone hydrogel through a laser process to minimize UV exposure and bacterial contamination

Back to tab navigation

Supplementary files

Publication details

The article was received on 19 maí 2016, accepted on 05 júl. 2016 and first published on 05 júl. 2016


Article type: Paper
DOI: 10.1039/C6RA12991A
Citation: RSC Adv., 2016,6, 67166-67172
  •   Request permissions

    Deposition of a hydrophilic nanocomposite-based coating on silicone hydrogel through a laser process to minimize UV exposure and bacterial contamination

    G. Huang, W. H. Tse and J. Zhang, RSC Adv., 2016, 6, 67166
    DOI: 10.1039/C6RA12991A

Search articles by author

Spotlight

Advertisements