Bioactive Silk Revolution: Harnessing Curcuminoid Dye and Chitosan for Superior Antimicrobial Defence and UV Shielding

文献类型： 外文期刊

第一作者： Do, Khai Ly

作者： Do, Khai Ly;Wahab, Abdul;Do, Khai Ly;Su, Miao;Ahsan, Taswar;Tayyab, Muhammad;Yin, Xinqi;Pan, Nengjie;Huang, Tao;Su, Miao;Mushtaq, Asim

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关键词： curcuminoid; natural dye; antimicrobial; UV protective; functional silk

期刊名称：PHARMACEUTICS （ 影响因子：5.5； 五年影响因子：5.8 ）

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年卷期： 2024 年 16 卷 12 期

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收录情况： SCI

摘要： Background/Objectives: The use of natural colourants is gaining attention due to their biocompatibility and functional benefits. This study introduces a different approach using turmeric (Curcuma longa L.) dye extract combined with chitosan to significantly enhance the antibacterial and UV-shielding properties of silk. Methods: The turmeric dye's chemical composition was analyzed using liquid chromatography mass spectrometry (LC-MS), UV-visible spectroscopy, and Fourier-transform infrared spectroscopy (FTIR). The dyed silk's colourfastness was tested through rubbing, washing, and light exposure. Results: The chitosan-mordanted silk showed strong antibacterial activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), as well as antifungal activity against Aspergillus niger (A. niger). It also demonstrated a high ultraviolet protection factor (UPF). For comparison, alum-mordant was used, and chitosan proved more effective. Beyond its use as a dye, turmeric is renowned for its medicinal properties. Its antioxidant, anticancer, and anti-inflammatory properties have been extensively researched, which are primarily linked to its curcuminoid compounds. Turmeric is used in traditional medication to treat digestive issues, arthritis, and skin diseases. Conclusions: This work underscores the innovative use of plant-based dye extracts and natural mordants like chitosan as a sustainable alternative to conventional metallic mordants, paving the way for the evolution of bioactive silk with improved functional properties.

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