Sun-Woo Sim, Ga-Hyoung Son, Yoon Jung Jang*,† , and Hyun Mee Lee†
Department of Optometry and Vision Science, Daegu Catholic University, Gyeongbuk 38430, Korea
*Chunma College of General Studies, Yeungnam University, Gyeongbuk 38541, Korea
대구가톨릭대학교 안경광학과, *영남대학교 천마학부대학 교양학부
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This study aimed to increase the loading of the antibiotic gatifloxacin in silicone hydrogel contact lenses through oleic acid treatment and to improve sustained drug release and physical properties using layer-by-layer (LBL) multilayer coatings with hyaluronic acid and chitosan. The interaction with oleic acid increased the drug loading, and LBL coating significantly enhanced the drug release duration. Specifically, as the number of coating layers increased, the water content also increased, and the antibacterial efficacy was strengthened, providing prolonged protection against microorganisms. The formation of LBL multilayer coatings with natural polysaccharides like hyaluronic acid and chitosan extended the drug release duration and improved the physical properties.
본 연구는 실리콘 하이드로겔 콘택트렌즈에 올레산 처리를 통해 항생제 가티플록사신의 탑재량을 증가시키고, 히알루론산과 키토산을 이용한 layer-by-layer(LBL) 다층 코팅으로 지속적인 약물 방출 및 물리적 특성을 향상시키는 것을 목적으로 하였다. 올레산과의 상호작용으로 약물 탑재량이 증가했으며, LBL 코팅은 약물 방출 지속성을 크게 개선하였다. 특히, 코팅층이 증가할수록 함수율이 증가하였으며, 향균성이 강화되어 장기간 미생물에 대한 보호 효과가 지속되었다. 히알루론산과 키토산과 같은 천연 다당류로 LBL 다층 코팅을 형성함으로써 약물 방출 지속 시간이 연장되고, 물리적 특성이 향상되었다.
Keywords: contact lens, layer-by-layer coating, oleic acid, gatifloxacin, hyaluronic acid, chitosan.
2025; 49(4): 425-434
Published online Jul 25, 2025
Department of Optometry and Vision Science, Daegu Catholic University, Gyeongbuk 38430, Korea
*Chunma College of General Studies, Yeungnam University, Gyeongbuk 38541, Korea