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Physicochemical properties of gold nanoparticles for skin care creams [Elektronski vir]Majerič, Peter, 1987- ...Gold nanoparticles (AuNPs) have now been used in skin care creams for several years, with marketed anti-aging, moisturizing, and regenerative properties. Information on the harmful effects of these ... nanoparticles is lacking, a concern for the use of AuNPs as cosmetic ingredients. Testing AuNPs without the medium of a cosmetic product is a typical method for obtaining this information, which is mainly dependent on their size, shape, surface charge, and dose. As these properties depend on the surrounding medium, nanoparticles should be characterized in a skin cream without extraction from the cream’s complex medium as it may alter their physicochemical properties. The current study compares the sizes, morphology, and surface changes of produced dried AuNPs with a polyvinylpyrrolidone (PVP) stabilizer and AuNPs embedded in a cosmetic cream using a variety of characterization techniques (TEM, SEM, DLS, zeta potential, BET, UV–vis). The results show no observable differences in their shapes and sizes (spherical and irregular, average size of 28 nm) while their surface charges changed in the cream, indicating no major modification of their primary sizes, morphology, and the corresponding functional properties. They were present as individually dispersed nanoparticles and as groups or clusters of physically separated primary nanoparticles in both dry form and cream medium, showing suitable stability. Examination of AuNPs in a cosmetic cream is challenging due to the required conditions of various characterization techniques but necessary for obtaining a clear understanding of the AuNPs’ properties in cosmetic products as the surrounding medium is a critical factor for determining their beneficial or harmful effects in cosmetic products.Vir: Materials [Elektronski vir]. - ISSN 1996-1944 (Vol. 16, iss. 8, [article no.] 3011, April 2023, 14 str.)Vrsta gradiva - e-članek ; neleposlovje za odrasleLeto - 2023Jezik - angleškiCOBISS.SI-ID - 149367299
Avtor
Majerič, Peter, 1987- |
Jović, Zorana |
Švarc, Tilen |
Jelen, Žiga, 1993- |
Horvat, Andrej, 1964- |
Koruga, Djuro |
Rudolf, Rebeka
Teme
nanodelci zlata |
ultrazvočna razpršilna piroliza |
sušenje z zamrzovanjem |
karakterizacija |
kreme |
gold nanoparticles |
ultrasonic spray pyrolysis |
freeze drying |
characterization |
creams
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Majerič, Peter, 1987- | 35509 |
Jović, Zorana | ![]() |
Švarc, Tilen | 56992 |
Jelen, Žiga, 1993- | 51003 |
Horvat, Andrej, 1964- | 14440 |
Koruga, Djuro | ![]() |
Rudolf, Rebeka | 14335 |
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