Effect of the Ultraviolet Protection according to the Concentration of Hydroxyapatite

Su-Chak Ryu; Jae-Hun Jeong; Dong-Hun Lee

doi:10.3740/MRSK.2026.36.1.11

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2026 Vol.36, Issue 1 Preview Page Next Page

Research Paper

Effect of the Ultraviolet Protection according to the Concentration of Hydroxyapatite

27 January 2026. pp. 11-16

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Abstract

Sunblocks are materials used in creams to help limit exposure to UVA and UVB. Many sunscreens contain TiO₂ and ZnO as the primary sunblock materials. In this study, we manufactured a sunscreen lotion using hydroxyapatite (HAp) nano-sol instead of ZnO and TiO₂. HAp is a biomaterial widely used in applications such as bone grafting, so it is known to be very biocompatible. In the present work, HAp-water nano sol, ZnO-water nano sol, and TiO₂-water nano sol were prepared by the attrition milling method. The sunscreen lotion base (LB) was manufactured with some oil and water. Lotions with various HAp-water solutions and LB concentrations were fabricated and their UV absorbance was measured. 6 % HAp content was the optimal amount considering price. The sun protection factor (SPF) value at that level was approximately 20 on average, corresponding to about 95 % UV protection. Results confirmed that ultraviolet screening agents using HAp had an excellent ultraviolet blocking effect.

Keywords

hydroxyapatite

sunblock

ultraviolet

TiO₂

ZnO

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Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 36
No :1
Pages :11-16
Received Date : 2025-10-27
Revised Date : 2025-12-16
Accepted Date : 2025-12-16
DOI :https://doi.org/10.3740/MRSK.2026.36.1.11

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

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