期刊
TRIBOLOGY INTERNATIONAL
卷 156, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2020.106836
关键词
Solid lipid nanoparticles; Triborheology; Skin permeation; Antioxidants
资金
- CONACYT
- PAPIIT from DGAPA-UNAM [222420]
- Internal Research Projects PIAPI [12040]
Shea butter solid lipid nanoparticles (SLNs) with excellent stability were synthesized in this study, and their penetration capacity and impact in topical formulations were validated through various analyses. The SLNs showed a lower coefficient of friction compared to bulk lipids, indicating potential applications in cosmetics such as anti-aging agents.
Solid lipid nanoparticles (SLNs) provide excellent biocompatibility and efficient encapsulation as pharmaceutical delivery systems. In this study, shea butter SLNs were synthesized by the hot homogenization technique, with excellent stability. The penetration capacity of nanoparticles was validated by atomic force microscopy, scanning electron microscopy, differential scanning calorimetry, dynamic light scattering, using zeta potential measurements, and confocal microscopy. Triborheological tests such as viscosity shear rate profiling, normal stress profiling and sliding speed sweeping were conducted to identify and quantify the impact of SLNs in topical formulations. We found that the SLNs had a lower coefficient of friction than the bulk lipids owing to a more stable lipid layer formation of the SLNs. SLNs in topical formulations have potential applications in cosmetics such as anti-aging agents owing to their emollient, occlusion, antioxidant and anti-inflammatory properties.
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