Zawawi Nurul Ain, Maarof Manira, Fadilah Nur Izzah Md, Hao Daniel Looi Qi, Tabata Yasuhiko, Fauzi Mh Busra
Department of Tissue Engineering & Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia.
Advance Bioactive Materials-Cells UKM Research Group, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia.
J Funct Biomater. 2025 May 26;16(6):195. doi: 10.3390/jfb16060195.
Hydrogel patches have gained significant attention in wound healing applications as they are similar to hydrogel dressings due to their moisture-retentive properties, biocompatibility, and ability to promote tissue regeneration. In this study, gelatin-based hydrogels crosslinked with genipin and incorporated with hyaluronic acid (HA) were developed to enhance mechanical stability, swelling behavior, and structural integrity. Fourier transform infrared (FTIR), thermogravimetric (TGA), and energy-dispersive X-ray (EDX) analyses were conducted and confirmed successful crosslinking and good thermal stability, ensuring hydrogel durability under physiological conditions. The optimized hydrogel (GE_HA_GNP) exhibited a sufficient water vapor transmission rate (WVTR), swelling ratio, and contact angle, allowing for effective wound exudate absorption and hydration maintenance, which is essential for accelerated healing. The findings demonstrate that the crosslinked hydrogels were able to maintain a WVTR of 500 to 1500 gm day, a contact angle of >40°, and a swelling ratio of 700-1000%. The combination of genipin as a crosslinker and the addition of HA significantly improved the mechanical properties and biocompatibility of the hydrogels, making them promising candidates for an alternative treatment for atopic dermatitis and a potential wound dress-ing. Furthermore, the hydrogel patches show potential for future drug delivery appli-cations, with further studies required to evaluate their antimicrobial properties and long-term clinical performance.
水凝胶贴片因其保湿性、生物相容性以及促进组织再生的能力,与水凝胶敷料相似,在伤口愈合应用中受到了广泛关注。在本研究中,开发了与京尼平交联并掺入透明质酸(HA)的明胶基水凝胶,以提高其机械稳定性、溶胀行为和结构完整性。进行了傅里叶变换红外光谱(FTIR)、热重分析(TGA)和能量色散X射线分析(EDX),证实了成功交联且具有良好的热稳定性,确保了水凝胶在生理条件下的耐久性。优化后的水凝胶(GE_HA_GNP)表现出足够的水蒸气透过率(WVTR)、溶胀率和接触角,能够有效吸收伤口渗出液并维持水合作用,这对于加速愈合至关重要。研究结果表明,交联水凝胶能够保持500至1500 g/m²·天的WVTR、>40°的接触角和700 - 1000%的溶胀率。京尼平作为交联剂与HA的添加显著改善了水凝胶的机械性能和生物相容性,使其有望成为特应性皮炎的替代治疗方法和潜在的伤口敷料。此外,水凝胶贴片在未来药物递送应用方面具有潜力,需要进一步研究来评估其抗菌性能和长期临床性能。
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