Pinto Ricardo J B, Marques Paula A A P, Neto Carlos Pascoal, Trindade Tito, Daina Sara, Sadocco Patrizia
CICECO, Chemistry Department, University of Aveiro, Portugal.
Acta Biomater. 2009 Jul;5(6):2279-89. doi: 10.1016/j.actbio.2009.02.003. Epub 2009 Feb 12.
Cellulose/Ag nanocomposites were prepared using two distinct methodologies and two cellulose substrates: vegetable and bacterial cellulose. These nanocomposites were characterized in terms of their morphology and chemical composition. Detailed studies on the antibacterial activity of these materials were carried out for Bacillus subtilis, Staphylococcus aureus and Klebsiella pneumoniae. Silver nanoparticles present in the cellulosic fibers in concentrations as low as 5.0x10(-4)wt.% make these nanocomposites effective antibacterial materials. We anticipate that the versatile use of these cellulose-based nanocomposites can bring a promising strategy to produce a wide range of interesting materials where antibacterial properties are crucial.
使用两种不同的方法和两种纤维素基底（植物纤维素和细菌纤维素）制备了纤维素/银纳米复合材料。对这些纳米复合材料的形态和化学成分进行了表征。针对枯草芽孢杆菌、金黄色葡萄球菌和肺炎克雷伯菌对这些材料的抗菌活性进行了详细研究。纤维素纤维中存在的银纳米颗粒浓度低至5.0×10⁻⁴ wt.%，使得这些纳米复合材料成为有效的抗菌材料。我们预计，这些基于纤维素的纳米复合材料的广泛应用能够为生产众多抗菌性能至关重要的有趣材料带来一种有前景的策略。
