Phytolatex synthesized gold nanoparticles as novel agent to enhance sun protection factor of commercial sunscreens

Abstract

Phytolatex synthesized gold nanoparticle is novel agent to enhance sun protection factor of commercial sunscreens. Gold nanoparticles aggregation in commercial sunscreen was the main factor behind SPF enhancement. This study showed that gold nanoparticles are potent alternative to traditionally used hazardous titanium dioxide and zinc oxide nanoparticles in sunscreen.

Green synthesis of colloidal gold nanoparticles using latex from Hevea brasiliensis and evaluation of their in vitro cytotoxicity and genotoxicity

“…A ruby‐red Au NPs suspension was obtained after mixing HAuCl 4 for 5 min with the latex solution. In other studies, this colour change was also observed when gold chloride solution was mixed with latex [27, 50]. The results showed that absorbance progressively increased as reduction time increased, leading to a plateau or saturation at 120 min (Fig.…”

“…Das et al (2011) [29] reported that aqueous extracts of Calotropis procera latex require 20 min to efficiently reduce HAuCl 4 (1.0 mmol/L) to Au NPs. Borase et al (2014) [27] observed that the absorbance of Au NPs colloid synthesised using latex from Jatropha gossypiifolia increased as incubation time increased.…”

“…Several studies have evaluated the in vitro cytotoxicity, genotoxicity, and anticancer activity of Au NPs produced through green synthesis [26]. Gold nanoparticles synthesised from phytolatex are promising candidates as components to enhance sun protection factor in sunscreen formulations [27].…”

Biomolecules from snail mucus (Helix aspersa) conjugated gold nanoparticles, exhibiting potential wound healing and anti-inflammatory activity

“…[13][14][15] Green synthesized AuNPs can also exhibit anticancer and antimicrobial activity, 16 antioxidant moisture retention, skin lightening properties, 17 and sunscreen ability, enlarging their applicability. 18,19 As reported by Gonnelli et al, 20 synthetic routes relying on green chemistry show other advantages for large scale production adopting mild conditions of work. 20 For green synthesized AuNPs, additional assembling steps are not necessary since the AuNP properties are ascribed to the main components present on their surface and used to induce their formation.…”

Anti-melanoma and UV-B protective effect of microbial pigment produced by marine Pseudomonas aeruginosa GS-33

“…In vitro spectrophotometric method was used for SPF determination (Dutra et al, 2004;Borase et al, 2014). In brief, commercially available sunscreen with labelled SPF of 15 was constituted as control respectively while, test contains the above commercial sunscreens spiked with PCA at concentration of 0.1, 0.2 and 0.4 % w/w of sunscreen.…”