In Situ Generation of Bimetallic Nanoparticles in Cotton Fabric Using Aloe Vera Leaf Extract, as a Reducing Agent

ABSTRACT

In the present work, bimetallic nanoparticles were in situ generated in cotton fabrics using Aloe Vera extract as reducing agent. The nanocomposite cotton fabrics were prepared, individually with 5 mM concentrations of Ag and Cu salt solutions and equi.molar concentration of their combination, characterized by FTIR, XRD, SEM, EDX, and antibacterial tests. FT-IR studies reveal that nitro compounds and hydroxyl groups are involved in reduction of the metal salts into their metal nanoparticles. The nanocomposite cotton fabrics have shown good antibacterial activity for five bacteria. These fabrics can be used for dressing, wound healing, packaging, and medical applications.

摘要

以芦荟提取物为还原剂，在棉织物上原位生成了双金属纳米粒子.采用FTIR、XRD、SEM、EDX 和抑菌等测试手段，分别以 5mM 浓度的 Ag、Cu盐溶液和等摩尔浓度配制了纳米复合棉织物。FT-IR 研究表明，硝基化合物和羟基参与了金属盐还原成金属纳米颗粒的过程。纳米复合棉织物对5种细菌具有良好的抗菌活性.这些织物可用于敷料，伤口愈合，包装和医疗应用

KEYWORDS:

• Aloe vera
• nanocomposite cotton fabrics
• bimetallic nanoparticles
• in situ generation method
• antibacterial activity
• green synthesis

关键词:

• 芦荟
• 纳米复合棉织物
• 双金属纳米颗粒
• 原位生成法
• 抗菌活性
• 绿色合成

Acknowledgments

One of the authors (G. Mamatha) thanks the UGC, Govt of India for the award of UGC-BSR Fellowship.