Coating on micronized titanium dioxide increases safety and maintains efficacy as sunscreen filter Journal Article

  


Authors: Goodner, J.; Patil, U.; Lim, Y.; Yarlagadda, S.; Castro, A.; Gonzalez, S.; Philips, N.
Article Title: Coating on micronized titanium dioxide increases safety and maintains efficacy as sunscreen filter
Abstract: Micronized titanium dioxide (TiO2) is a widely used sunscreen ultraviolet (UV) radiation filter. The penetration of micronized TiO2 into the dermis, and its photocatalytic activity leading to generation of reactive oxygen species is a widespread concern. The coating of TiO2 with antioxidants and polymers reduces or eliminates photocatalytic activity. Further, chemical grafting of anti-oxidant molecules with an additional hydrophobic polymer coating directly onto TiO2 particle surfaces eliminates photocatalytic degradation while maintaining effective screen against UV radiation.
Keywords: ultraviolet radiation; dna damage; sunscreen; inflammation; cell damage; reactive oxygen metabolite; nanoparticle; antioxidant; oxidative stress; polymer; sunlight protection; magnesium; skin protection; avobenzone; oxybenzone; titanium dioxide; zinc oxide; hydrophobicity; material coating; uv radiation; 4 methoxycinnamic acid 2 ethylhexyl ester; micronized titanium dioxide; sunscreen filter; photocatalysis; skin absorption
Journal Title: Journal of Plastic Dermatology
Volume: 4
Issue: 1
ISSN: 1473-2130
Publisher: International-Italian Society of Plastic and Oncologic Dermatology  
Date Published: 2008-01-01
Start Page: 21
End Page: 22
Language: English
PROVIDER: scopus
DOI/URL:

http://www.scopus.com/inward/record.url?eid=2-s2.0-43349103518&partnerID=40&md5=57b429470d2431b8ea546944f9178df6
Notes: --- - "Export Date: 17 November 2011" - "Source: Scopus"