TY - JOUR

T1 - Green tint Pickering emulsions based on Cr-doped hydroxyapatite nanoparticles: Stabiliser production, stability study, and vitamin A encapsulation

AU - Колоколова, Наталья Дмитриевна

AU - Сюккалова, Евгения Александровна

AU - Барбаянов, Кирилл Андреевич

AU - Бобрышева, Наталья Петровна

AU - Осмоловский, Михаил Глебович

AU - Ткаченко, Дмитрий

AU - Вознесенский, Михаил Андреевич

AU - Осмоловская, Ольга Михайловна

N1 - Acknowledgements The work was financially supported by the Russian Science Foundation, project No. 24–23–00225, https://rscf.ru/en/project/24–23–00225/. Centre for X-ray Diffraction Studies, Centre for Physical Methods of Surface Investigation, Interdisciplinary Resource Centre for Nanotechnology, Chemical Analysis and Materials Research Centre, Centre for Innovative Technologies of Composite Nanomaterials, Computing Centre, Centre for Optical and Laser Materials Research, Centre for Diagnostics of Functional Materials for Medicine, Pharmacology and Nanoelectronics.

PY - 2025/10/1

Y1 - 2025/10/1

N2 - This study investigates the influence of synthesis conditions on structural, morphological and optical properties of chromium-doped hydroxyapatite nanoparticles (Cr-HAp) for UV protection. Using co-precipitation and hydrothermal methods, Cr-HAp nanoparticles with elongated monocrystalline needle-like structures were successfully synthesised. Quantum chemical calculations provided insights into the oriented attachment process and the interaction of ions with the nanoparticle surface. The growth mechanism and dopant distribution were found to be dependent on the nature of the hydroxyl ion source. Optical analysis revealed a distinct absorption peak in the range of 200—350 nm, making these nanoparticles suitable for UVB filter applications. The nanoparticles exhibited a palette of bluish-green hues, with colorimetric properties dependent on synthesis conditions. The Cr-HAp nanoparticles demonstrated great stability as Pickering emulsions, and exhibited enhanced functionality upon vitamin A encapsulation. These findings highlight the potential of Cr-HAp nanoparticles in advanced materials for cosmetics.

AB - This study investigates the influence of synthesis conditions on structural, morphological and optical properties of chromium-doped hydroxyapatite nanoparticles (Cr-HAp) for UV protection. Using co-precipitation and hydrothermal methods, Cr-HAp nanoparticles with elongated monocrystalline needle-like structures were successfully synthesised. Quantum chemical calculations provided insights into the oriented attachment process and the interaction of ions with the nanoparticle surface. The growth mechanism and dopant distribution were found to be dependent on the nature of the hydroxyl ion source. Optical analysis revealed a distinct absorption peak in the range of 200—350 nm, making these nanoparticles suitable for UVB filter applications. The nanoparticles exhibited a palette of bluish-green hues, with colorimetric properties dependent on synthesis conditions. The Cr-HAp nanoparticles demonstrated great stability as Pickering emulsions, and exhibited enhanced functionality upon vitamin A encapsulation. These findings highlight the potential of Cr-HAp nanoparticles in advanced materials for cosmetics.

KW - Doping

KW - Hydrothermal methods

KW - Hydroxyapatite

KW - O/W Pickering emulsions

KW - Vitamin A

UR - https://www.mendeley.com/catalogue/f597e041-83bc-39a6-8c75-06e89c41098c/

U2 - 10.1016/j.surfin.2025.107715

DO - 10.1016/j.surfin.2025.107715

M3 - Article

VL - 74

JO - Surfaces and Interfaces

JF - Surfaces and Interfaces

SN - 2468-0230

M1 - 107715

ER -