CuO-TiO2–Saponite Ternary Nanocomposite for Efficient Removal of Bromocresol Green Dye DOI Open Access
Pollyana Trigueiro, W. Albuquerque,

Aimée G. Jerônimo

et al.

Minerals, Journal Year: 2024, Volume and Issue: 14(12), P. 1268 - 1268

Published: Dec. 13, 2024

This study presents the synthesis of a CuO-TiO2–saponite ternary nanocomposite via hydrothermal method, designed to efficiently remove bromocresol green dye. Characterization techniques, including X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy, confirmed significant interactions between metal oxide nanoparticles clay mineral matrix. Diffuse reflectance photoluminescence analyses revealed narrow band gap surface defects, such as oxygen vacancies, enhancing material’s photocatalytic properties. Under UV irradiation, achieved 83% discoloration dye within 150 min. The inhibitor studies identified hydroxyl superoxide radicals key species in degradation mechanism. work underscores potential clay-mineral-based nanocomposites, where minerals function both structural support enhancers semiconductor’s activity.

Language: Английский

Biocompatible Lyotropic Nanocarriers for Improved Delivery of Ascorbyl Tetraisopalmitate in Skincare DOI

Xintong Han,

Qimin Yan, Ning Gao

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Ascorbyl tetraisopalmitate (VC-IP) is a novel form of ascorbic acid characterized by reduced water solubility due to complete acylation with palmitate. This study investigated the potential cosmetic application VC-IP when encapsulated in lyotropic liquid crystal nanoparticles (VC-IP LCNPs) using high-pressure homogenization (HPH) method. The particle size, zeta potential, and polydispersity index (PDI) obtained LCNPs were determined as 158.8 ± 3.2 nm, −35.1 2.8 mV, 0.12 0.02, respectively. drug loading (DL%) was approximately 35.1%. Morphological changes LCNPs, transitioning from sponge phase vesicles, confirmed successful VC-IP, demonstrated transmission electron microscopy (Cryo-TEM) small-angle X-ray scattering (SAXS) experiments. sustained release also observed through Franz transdermal diffusion test, indicating that facilitated sustained-release effect into skin. exhibited good biocompatibility, showing nontoxicity HaCaT cells zebrafish embryos. Raman distribution imaging successfully penetrated stratum corneum reached dermis. In assessments whitening effects, significantly reactive oxygen species (ROS) content melanin areas heads zebrafish. Furthermore, effectively inhibited tyrosinase activity proliferation A375 compared pure VC-IP. Additionally, area Therefore, developed present promising carrier for enhanced active ingredients, such products.

Language: Английский

Citations

0
CuO-TiO2–Saponite Ternary Nanocomposite for Efficient Removal of Bromocresol Green Dye DOI Open Access
Pollyana Trigueiro, W. Albuquerque,

Aimée G. Jerônimo

et al.

Minerals, Journal Year: 2024, Volume and Issue: 14(12), P. 1268 - 1268

Published: Dec. 13, 2024

This study presents the synthesis of a CuO-TiO2–saponite ternary nanocomposite via hydrothermal method, designed to efficiently remove bromocresol green dye. Characterization techniques, including X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy, confirmed significant interactions between metal oxide nanoparticles clay mineral matrix. Diffuse reflectance photoluminescence analyses revealed narrow band gap surface defects, such as oxygen vacancies, enhancing material’s photocatalytic properties. Under UV irradiation, achieved 83% discoloration dye within 150 min. The inhibitor studies identified hydroxyl superoxide radicals key species in degradation mechanism. work underscores potential clay-mineral-based nanocomposites, where minerals function both structural support enhancers semiconductor’s activity.

Language: Английский

Citations

0