Antibacterial effect of silver nanoparticles produced by fungal process on textile fabrics and their effluent treatment
Antibacterial effect of silver nanoparticles produced by fungal process on textile fabrics and their effluent treatment
复制标题
DOI：
10.1166/jbn.2007.022
复制
发表时间：
2007-06-01
影响因子：
2.9
通讯作者：
Esposito, Elisa
中科院分区：
文献类型：
--
作者：
Duran, Nelson;Marcato, Priscyla D.;Esposito, Elisa
微生物通过还原金属离子在有毒金属修复中发挥着重要作用。研究表明，可以使用尖孢镰刀菌在细胞外还原银离子，从而在水中生成稳定的金或银纳米颗粒。这些颗粒可以掺入多种材料中，例如布料。这些含有银纳米颗粒的布是无菌的，可用于医院预防或尽量减少金黄色葡萄球菌等病原菌的感染。在这项工作中，研究了尖孢镰刀菌在细胞外产生银纳米颗粒及其掺入棉织物中时对金黄色葡萄球菌的抗菌作用。此外，所有流出物均采用紫色梭菌进行生物修复。结果表明，掺入纳米银颗粒的棉织物对金黄色葡萄球菌表现出显着的抗菌活性。该工艺产生的废水经过紫罗兰色念珠菌处理后，银纳米颗粒浓度得到有效降低。总之，证明了生物合成在银纳米粒子生产中的应用及其在布料中的应用，为布料提供了无菌特性。此外，为了避免对环境造成任何损害，可以用含氰细菌菌株处理含有银纳米颗粒的废水。
Microorganisms play an important role in toxic metal remediation through reduction of metal ions. Studies demonstrated that silver ions may be reduced extracellularly using Fusarium oxysporum to generate stable gold or silver nanoparticles in water. These particles can be incorporated in several kinds of materials such as cloths. These cloths with silver nanoparticles are sterile and can be useful in hospitals to prevent or to minimize infection with pathogenic bacteria such as Staphylococcus aureus. In this work, the extracellular production of silver nanoparticles by F oxysporum and its antimicrobial effect when incorporated in cotton fabrics against S. aureus were studied. In addition, all effluent was bioremediated using treatment with C. violaceum. The results showed that cotton fabrics incorporated with silver nanoparticles displayed a significant antibacterial activity against S. aureus. The effluent derived from the process was treated with C. violaceum and exhibited an efficient reduction in the silver nanoparticles concentration. In conclusion, it was demonstrated the application of biological synthesis to silver nanoparticles production and its incorporation in cloths, providing them sterile properties. Moreover, to avoid any damage to the environment the effluent containing silver nanoparticles can be treated with cyanogenic bacterial strains.