TY - JOUR

T1 - New biocompatible red tint pigments based on hydroxyapatite: The influence of nanoparticle parameters on colorimetric properties

AU - Ткаченко, Дмитрий

AU - Восканян, Лусинэ Армановна

AU - Маркарян, Артур Ашотович

AU - Шапошник, Валерия Владиславовна

AU - Осмоловский, Михаил Глебович

AU - Вознесенский, Михаил Андреевич

AU - Осмоловская, Ольга Михайловна

AU - Бобрышева, Наталья Петровна

N1 - The work was financially supported by the Russian Science Foundation, project No. 24-23-00225, https://rscf.ru/en/project/24-23-00225/. Scientific research was performed using the St. Petersburg State University Research Park equipment: 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 - 2025/11

Y1 - 2025/11

N2 - This work presents the results of a study on the synthesis and characterisation of hydroxyapatite nanoparticles doped with iron ions to create biocompatible pigments in the red spectrum. Using a simple and scalable co-precipitation method, nanoparticles with controlled structural parameters and colorimetric properties were obtained by varying the pH of the medium (8 or 10) and the concentration of dopant ions (5, 10, or 20 at.%). Powder X-ray diffraction, infrared spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy were conducted to determine the phase composition, crystallite sizes, and unit cell parameters. A combination of experimental and quantum chemical approaches confirmed the presence of a non-classical nanoparticle growth mechanism—the process of oriented attachment of initial blocks. A methodology for studying colorimetric properties using the CIELAB colour space based on the use of a portable colorimeter was developed. A cosmetic product based on the synthesised nanoparticles in the form of lip balm and eye shadow was created.

AB - This work presents the results of a study on the synthesis and characterisation of hydroxyapatite nanoparticles doped with iron ions to create biocompatible pigments in the red spectrum. Using a simple and scalable co-precipitation method, nanoparticles with controlled structural parameters and colorimetric properties were obtained by varying the pH of the medium (8 or 10) and the concentration of dopant ions (5, 10, or 20 at.%). Powder X-ray diffraction, infrared spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy were conducted to determine the phase composition, crystallite sizes, and unit cell parameters. A combination of experimental and quantum chemical approaches confirmed the presence of a non-classical nanoparticle growth mechanism—the process of oriented attachment of initial blocks. A methodology for studying colorimetric properties using the CIELAB colour space based on the use of a portable colorimeter was developed. A cosmetic product based on the synthesised nanoparticles in the form of lip balm and eye shadow was created.

KW - Cosmetics

KW - Doping

KW - Hydroxyapatite

KW - Iron

KW - Nanoparticles

UR - https://www.mendeley.com/catalogue/7f808e0b-c223-3976-b7b5-79b845f9aafe/

U2 - 10.1016/j.optmat.2025.117426

DO - 10.1016/j.optmat.2025.117426

M3 - Article

VL - 168

JO - Optical Materials

JF - Optical Materials

SN - 0925-3467

M1 - 117426

ER -