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Polydopamine-modified interface improves the immobilization of natural bioactive-dye onto textile and enhances antifungal activity.
Biointerphases ( IF 2.1 ) Pub Date : 2020-08-24 , DOI: 10.1116/6.0000295
Sondes Gargoubi 1 , Fatma Saghrouni 2 , Pascale Chevallier 3 , Ranna Tolouei 3 , Chedly Boudokhane 4 , Neji Ladhari 1 , Diego Mantovani 3
Affiliation  

Dermatomycosis, such as candidiasis and mycosis among others, has emerged recently as the most frequent fungal infection worldwide. This disease is due to the skin's exposure to microorganisms that are able to pass through skin barrier defects. Therefore, textiles in direct contact with skin can serve as a source of contamination and fungus spread. In the current study, a sustainable and eco-friendly method for antifungal cotton finishing using Curcuma longa L extracted from rhizomes was investigated. To enhance the natural bioactive dye uptake and attachment, cellulosic cotton fibers were chemically modified using dopamine, a biocompatible molecule, leading to the deposition of a hydrophilic layer of polydopamine. The efficiency of the polydopamine coating on the cotton surface has been assessed by x-ray photoemission spectroscopy analyses, with the detection of nitrogen, and by water contact angle for the wettability enhancement. Furthermore, characterization of the modified samples confirms that the modification did not affect either the cellulosic fiber morphology or the mechanical properties. The dyeability and bioactive dye immobilization were then assessed by colorimetry. Finally, the effectiveness of the finished fabrics against Trichophyton (rubrum/mentagrophytes) and Candida albicans strains was evaluated and was shown to induce growth inhibition mainly on Candida albicans strains.

中文翻译:

聚多巴胺修饰的界面改善了天然生物活性染料在纺织品上的固定并增强了抗真菌活性。

皮肤真菌病,例如念珠菌病和真菌病等,最近已成为世界范围内最常见的真菌感染。这种疾病是由于皮肤暴露于能够穿过皮肤屏障缺陷的微生物。因此,与皮肤直接接触的纺织品可能成为污染和真菌传播的来源。在目前的研究中,一种使用姜黄进行抗真菌棉花整理的可持续和生态友好的方法研究了从根茎中提取的 L。为了增强天然生物活性染料的吸收和附着,纤维素棉纤维使用多巴胺(一种生物相容性分子)进行化学改性,导致聚多巴胺亲水层的沉积。棉表面聚多巴胺涂层的效率已通过 X 射线光发射光谱分析、检测氮和通过水接触角提高润湿性来评估。此外,改性样品的表征证实改性不会影响纤维素纤维形态或机械性能。然后通过比色法评估可染性和生物活性染料固定化。最后,成品织物对毛癣菌的有效性(红色念珠菌/须癣菌)和白色念珠菌菌株进行了评估,结果显示主要对白色念珠菌菌株诱导生长抑制。
更新日期:2020-09-01
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