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Rh6G染料组装光动力抗菌棉织物的制备及抗菌性能
Preparation and antibacterial performance of Rh6G dye-assembled photodynamic antimicrobial cotton fabrics
【摘要】 具有高效智能、不致耐药性的光动力抗菌纺织材料在功能纺织面料领域备受关注。针对现有光动力染料结构种类少、新型染料合成复杂且成本高的问题,设计棉织物上商业染料间荧光共振能量转移(FRET)系统,以提升光动力棉织物的光子利用率和抗菌性能。通过染色方式在阴离子型锌酞菁基光动力棉织物上负载商业荧光染料罗丹明6G,研究了织物的光谱吸收特性、光动力/光热及光动力抗菌性能。结果表明,所制备棉织物CF-ZP/RG5在可见光波段450~700 nm范围内呈宽谱带吸收,且具有优异的光动力和光热性能,在日光灯(λ>400 nm,15 mW/cm~2)照射90 min条件下对金黄葡萄球菌的抗菌率高达99.9%,为功能性抗菌防护纺织品的开发提供了新的思路。
【Abstract】 Photodynamic antibacterial textile materials with high efficiency, intelligence, and non-inducible drug resistance have garnered significant attention in the field of functional materials. To address the challenges of limited structural diversity in photodynamic dyes and the complexity and high cost of synthesizing novel dyes,a fluorescence resonance energy transfer(FRET) system involving commercial dyes is designed on cotton fabrics to enhance the photon utilization efficiency and antibacterial performance. The commercial fluorescent dye Rhodamine 6G is loaded onto anionic zinc phthalocyanine-based photodynamic cotton fabrics through a dyeing process. The spectral absorption characteristics, photodynamic performance, and photodynamic antibacterial properties of the fabrics are investigated. The results show that the prepared cotton fabric CF-ZP/RG5 exhibits broad-spectrum absorption in the visible light range of 450-700 nm, along with excellent photodynamic and photothermal properties. Under irradiation with a daylight lamp(λ>400 nm, 15 mW/cm~2) for 90 min, it achieves an antibacterial rate of up to 99.9% againstS.aureus, providing a novel approach for the development of functional antibacterial protective textiles.
【Key words】 antibacterial textile; cationic fluorescent dye; photodynamic dye; singlet oxygen; photothermal;
- 【文献出处】 印染 ,China Dyeing & Finishing , 编辑部邮箱 ,2026年05期
- 【分类号】TS195.5
- 【下载频次】53