Chitosan microparticles incorporating a hydrophilic sunscreen agent

Bacterial Polysaccharides: Production and Applications in Cosmetic Industry

“…com). Gomaa et al (2010) used chitosan microparticles to incorporate phenylbenzimidazole sulfonic acid, a hydrophilic sunscreen agent. Egg album microspheres containing vitamin A were applied to prepare O/W creams, resulting in a prolonged release and higher bioavailability of that vitamin (Patavale and Mandawgade 2008).…”

Preparation, Properties and Applications of Chitosan-Based Biocomposites/Blend Materials: A Review

“…In the light of these advantages, it finds application in many areas of human life and health (Table 2). However, their unfavourable thermal [22][23][24][25] and mechanical properties [26][27][28], their high crystallinity [29,30], they are less hydrophilic [31,32], and are insoluble in dilute acid solution [33,34], all limit their wide applications. The search for new applications has called for development in the properties of Cs through incorporation of Cs polymer with reinforcement agents of other polymer to produce Cs-based composites and blend materials.…”

Multifunction hexagonal liquid-crystal containing modified surface TiO2 nanoparticles and terpinen-4-ol for controlled release

“…Organic UV absorbers are generally photo unstable, and the preference to improve the sun protection factor and the photostability of these molecules is the use of controlled release systems, as employed with benzophenone-3, 6 oxybenzone, 7 phenylbenzimidazole sulfonic acid, 8 2-ethylhexyl-2-cyano-3,3-diphenylacrylate, 2-ethylhexyl trans-4-methoxycinnamate, and Bis-ethylhexyloxyphenol methoxyphenyl triazine. 9 In the end of 1980s, the use of inorganic particles became popular, being presented with various types of treatment surface, as dispersions, and as micronized particles in order to enhance the photoprotection against UVA radiation and to minimize photoreactivity displayed by the organic UV filters traditionally used.…”