sunscreen – TechConnect Briefs

Design of a novel melatonin Pickering emulsion sunscreen

Ribeiro H., Faculdade de Farmácia cda Universidade de Lisboa, PT

Melatonin, the main secretory product of the pineal gland, was recently found to have a protection effect against photocarcinogenesis based on its free radical scavenger and antioxidant activity. On the other hand, the daily use [...]

Development and Characterization of an aqueous dispersion based nano zinc oxide for cosmetic application in sunscreens

Perez-Rodriguez F., Acosta-Gonzalez G., Gutierrez-Antonio J., Aguilera-Bustos M., Acosta-Armenta L., Nanomateriales, MX

Development of an additive based nanostructured zinc oxide nano through a grinding process1 and physicochemical surface functionalization allows the formation of a stable aqueous dispersion having high solids and thus, high capacity for absorption of [...]

Exposure Evaluation of Airborne Titanium Dioxide from Use in Spray Sunscreens

Kreider M.L., Unice K.M., Madl A.K., Cardno ChemRisk, US

In this study, we simulated consumer application of a spray sunscreen containing nanoscale TiO2 to determine the nature of consumer TiO2 exposure from the product’s use (e.g. form of TiO2 [primary particle, aggregate/agglomerate], size of [...]

TiO2:Mn nanoparticles as enhanced UVA absorption, photostable sunscreen components

Duggan A., Wakefield G., Oxonica Materials Ltd, UK

Conventional sunscreen formulations typically contain, in addition to organic UV absorbers, inorganic nanoparticles such as titanium oxide or zinc oxide. Titanium oxide nanoparticles have significant drawbacks due to a high photoactivity which results in degradation [...]

Stable Isotope Tracing – a way forward for Nanotechnology?

Gulson B., Wong H., McCall M., Danon S., Greenoak G., Trotter J., Casey P., Stauber J., Commonwealth Scientifc and Industrial Research Organisation, AU

Numerous publications and reports have expressed health and safety concerns about the production and use of nanoparticles, especially in areas of exposure monitoring, personal use, and environmental fate and transport. We suggest that stable isotopic [...]