
School of Chemical Engineering, Pusan National University, 2 Busandaehak-ro 63Beon-gil, Geumjeong-gu, Busan 46241, Korea
부산대학교 응용화학공학부
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Fulvic acid (FA) is a natural bioactive compound with antibacterial, anti-inflammatory, and antioxidant properties, making it a promising material for treating tissue damage accompanied by infection and inflammation. In this study, an electrospun nanofiber patch containing FA was developed for the treatment of oral mucosal diseases such as oral ulcers. To enhance tissue adhesion, a gelatin–dopamine (Gel-DA) complex was used as the matrix. Antibacterial evaluation demonstrated effective inhibition of both Gram-positive and Gram-negative bacteria. The fabricated nanofibers exhibited excellent cytocompatibility, along with sustained drug release over 24 hours and appropriate biodegradability. These results suggest that FA-loaded nanofibers have strong potential as a localized therapeutic platform for providing both antibacterial and anti-inflammatory effects at oral mucosal injury sites.
풀빅산(fulvic acid, FA)은 항균, 항염 및 항산화 특성을 지닌 천연 유래 생리활성 물질로, 감염과 염증이 동시에 수반되는 조직 손상 치료에 유망한 소재이다. 본 연구에서는 구내염과 같은 구강 점막 질환 치료를 위해 FA를 함유한 전기방사 기반 나노섬유(nanofiber, NF) 패치를 개발하였다. 조직 접착력을 향상하기 위해 젤라틴-도파민(Gel-DA) 복합체를 기질로 사용하였고 항균 활성 평가 결과, 그람양성균과 그람음성균 모두에서 세균 성장 억제 효과를 나타냈다. 개발된 NF는 우수한 세포적합성을 보였으며, 24시간 동안 지속적인 약물 방출과 적절한 생분해성을 나타냈다. 이러한 결과는 FA 함유 NF가 구강 점막 손상 부위에서 항염 및 항균 효과를 제공하는 국소 치료 플랫폼으로 활용될 가능성을 시사한다.
Keywords: fulvic acid, electrospun nanofibers, antibacterial activity, mucoadhesive patch, oral ulcer treatment.
This Article2026; 50(4): 622-629
Published online Jul 25, 2026
Correspondence toSchool of Chemical Engineering, Pusan National University, 2 Busandaehak-ro 63Beon-gil, Geumjeong-gu, Busan 46241, Korea