期刊
MOLECULES
卷 26, 期 15, 页码 -出版社
MDPI
DOI: 10.3390/molecules26154392
关键词
halloysite; retinol; niacinamide; glycolic acid; adsorption; molecular modeling
资金
- Spanish Ministerio de Economia, Industria y Competitividad [PCIN2017-098]
- Regional Government Junta de Andalucia
- FEDER European [P18-RT-3786]
The study found that retinol, niacinamide, and glycolic acid can be stably adsorbed on the internal surface of halloysite, forming hydrogen bonds with the hydroxyl groups of the inner surface and showing electrostatic interaction with water molecules. This indicates that the adsorption of these active ingredients in halloysite nanotubes is favorable and may be used for future topical formulations for skincare.
The adsorption of retinol, niacinamide and glycolic acid active ingredients on the internal surface of halloysite in an aqueous environment was explored at the molecular level by means of calculations based on quantum mechanics and force fields from empirical interatomic potentials. These active ingredients are stably adsorbed on the internal surface of halloysite forming hydrogen bonds between the hydrogen, oxygen and nitrogen atoms with the hydroxyl groups of the inner surface of the halloysite. In addition, electrostatic interaction between these active ingredients with the water molecules was observed. Therefore, the theoretical results indicate that the adsorption of these active principles is favourable in the halloysite nanotube, which allows directing future experimental investigations for the development and design of retinol, niacinamide and glycolic acid with halloysite nanotubes systems, which may be topical formulations for skincare.
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