20.500.12556/RUL-166769 Development of antibacterial and halochromic textiles by modification of emodin from Japanese knotweed Emodin is a natural product with a wide range of biological activities, including antibacterial and antiviral activity against the human coronavirus NL63. Our aim was to develop antimicrobial textiles using the natural dye emodin and its derivatives and to investigate how chemical modification of emodin affects the binding properties to textiles and the antibacterial properties of the dyed textiles. Emodin was first modified by introducing different functional groups(NO$_2$, SO$_3$H, Br, and Cl) into the aromatic ring to obtain products with different colors. Products were used to dye various types of textiles without additional mordants. Wool and polyamide exhibited intense dye uptake, whereas cottonand polyester showed weaker affinity to emodin derivatives. The colors of dyedwool and polyamide varied, including light pink, red, violet, and almost blacktones. The degree of washing fastness, pH sensitivity, and antibacterial activity of treated fabrics were also evaluated. The dyed textiles showed significant antibacterial activity against Gram-positive Staphylococcus aureus. Emodin is also present in Japanese knotweed, which is one of the most invasive alien plant species in the world and poses a major ecological and environmental problem in Europe. Therefore, this source may present environmentally friendly and sustainable source of natural dyeing agent. 大黄素是一种天然产物，具有广泛的生物活性, 包括对人类冠状病毒NL63 的抗菌和抗病毒活性我们的目的是利用天然染料大黄素及其衍生物开发抗 菌纺织品，并研究大黄素的化学改性如何影响纺织品的结合性能和染色纺 织品的抗菌性能（NO2、SO3H、Br和Cl) 进行改性，得到不同颜色的产物. 产品用于在不添加媒染剂的情况下对各种类型的纺织品进行染色. 羊毛和 聚酰胺表现出强烈的染料吸收，而棉花和聚酯对大黄素衍生物的亲和力较 弱. 染色羊毛和聚酰胺的颜色各不相同，包括浅粉色、红色、紫色和近乎 黑色的色调. 还评估了处理织物的洗涤牢度、pH 敏感性和抗菌活性. 染色 纺织品对革兰氏阳性金黄色葡萄球菌显示出显著的抗菌活性. 大黄素也存 在于日本虎杖中，虎杖是世界上入侵最严重的外来植物物种之一，在欧洲 造成了重大的生态和环境问题. 因此，这种来源可能是环保和可持续的天 然染色剂来源. anthraquinone dye wool halochromism antibacterial activity MSSA antibacterial textiles 关键词 羊毛 晕染症 抗菌 活性 抗菌纺织品 true false true Angleški jezik Kitajski jezik Članek v reviji 2025-01-24 10:20:18 2025-01-24 10:20:25 2025-11-24 09:47:06 0000-00-00 00:00:00 2025 0 0 KLJUČNE BESEDE: emodin, japonski dresnik, naravna barvila, tekstil, volna, protimikrobna aktivnost, halokromizem 20 str. no. 1, art. 2445579 Vol. 22 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 547.9:677:579.6 1544-046X 10.1080/15440478.2024.2445579 221365507 RAZ_Avbelj_Martina_2025.pdf RAZ_Avbelj_Martina_2025.pdf 1 87E90A6890BEF19EC3E5B880B3B7F9B6 0def264eb70b5e9cdb10392b41a53c7966a96489b31291fa0af54766348ebece c3032856-da34-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=198646 https://www.tandfonline.com/doi/full/10.1080/15440478.2024.2445579 1 a5b4463a-da33-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=198643 Biotehniška fakulteta Fakulteta za kemijo in kemijsko tehnologijo Naravoslovnotehniška fakulteta 0 0 0