Diatomite encapsulated AgNPs as novel hair dye cosmetics: Preparation, performance, and toxicity
| Autor: | Ying Tang, Lei Liu, Zhaolun Zhang, Shuyan Yang, Gerald J. Smith |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Silver
Biocompatibility Hair Dyes Hair Preparations Metal Nanoparticles 02 engineering and technology 01 natural sciences Silver nanoparticle Colloid and Surface Chemistry X-Ray Diffraction X-ray photoelectron spectroscopy Spectroscopy Fourier Transform Infrared 0103 physical sciences Humans Physical and Theoretical Chemistry Fourier transform infrared spectroscopy 010304 chemical physics Plant Extracts Chemistry Surfaces and Interfaces General Medicine 021001 nanoscience & nanotechnology Diatomaceous Earth Anti-Bacterial Agents Particle aggregation Chemical engineering Dispersion stability Dyeing 0210 nano-technology Biotechnology Colour fastness |
| Zdroj: | Colloids and Surfaces B: Biointerfaces. 200:111599 |
| ISSN: | 0927-7765 |
| DOI: | 10.1016/j.colsurfb.2021.111599 |
| Popis: | Naturally-occurring diatomite has been successfully utilised as a unique encapsulating material to obtain a highly dispersed suspension of uniformly-sized silver nanoparticles (AgNPs). Plant derived gallic acid was used as the reducing and capping agent. High-resolution scanning and transmission electron microscopy results confirmed the attachment of AgNPs on the surface of diatom frustule and maintained an excellent dispersion stability against particle aggregation. The AgNPs obtained were employed for the colouration of bleached human hair owing to the local surface plasmonic absorption (LSPR) of the AgNPs. The effects of Ag/diatomite concentration, dyeing pH, temperature and time on the produced colour were investigated. Hair fibres treated under optimised conditions display good colour fastness toward solar radiation. The morphology and chemical composition of AgNP-dyed hair were determined by energy-dispersive spectroscopy, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy analyses. The biocompatibility of the Ag/diatomite composite, AgNPs, and the dyebaths were confirmed by in vitro acute dermal and ocular toxicity tests. The diatomite supporting AgNPs therefore hold good promise and enormous potential to be exploited for sustainable dyeing of human hair. |
| Databáze: | OpenAIRE |
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