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KMID : 0604520150410010027
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Journal of the Society of Cosmetic Scientists of Korea
2015 Volume.41 No. 1 p.27 ~ p.34
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Development of Thermo-Cosmetics Using Photothermal Effect of Gold Nanoparticles
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Lee Jae-Yeul
Kim Bo-Mi
Park Se-Ho
Choi Yo-Han
Shim Kyu-Dong
Moon Sung-Bae
Jang Eue-Soon
Yang Seun-Ah
Jhee Kwang-Hwan
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Abstract
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Many applications of nanoparticles have been developed since 1970s. Surface plasmon resonance (SPR) effect can be generated at the surface of nanoparticles by illumination. SPR is the resonant oscillation of conduction electrons at the surface material stimulated by incident light. The collisions between excited electrons and metal atoms can cause the production of thermal energy (photothermal effect). Here, we presented the development of thermo-cosmetics using photothermal effect of gold nanoparticles. Gold nanoparticles (GNPs) were chosen for it's low toxicity. We also and investigated the cell biocompatibility and heating effectiveness for photothermal effect of GNPs. Synthesized GNPs were verified by UV-vis spectrophotometer, where GNP has a characteristic absorbance spectrum. Concentration of GNP was measured by atomic absorption analyzer. The cytotoxicity was confirmed by MTT assay and double staining assay. Photothermal effect of GNP was demonstrated by the thermal increasing properties depending on GNP concentration, which was taken by an IR-thermal camera with a xenon lamp as the light source. If the thermal effect of GNP is applied for thermo-cosmetics, it can supply heat to skin by converting solar energy into thermal energy. Thus, cosmetics containing GNPs can provide benefits to people in the cold region or winter season for maintaining skin temperature, which lead to a positive effect on skin health.
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KEYWORD
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gold nanoparticle, surface plasmon resonance, photothermal effect, electron transfer, cytotoxicity
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