Bactericide efficiency of a combination of chitosan gel with silver nanoparticles
Bactericide efficiency of a combination of chitosan gel with silver nanoparticles
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壳聚糖凝胶与纳米银粒子组合的杀菌效率
DOI：
10.1016/j.matlet.2013.05.075
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
N. Niño
中科院分区：
文献类型：
--
作者：
C. Sámano;G. Martínez;R. Martínez;J. Loyola;J. F. Reyes;G. Ortega;N. Niño
制备了壳聚糖-纳米银杂化水凝胶。制备了银纳米粒子并将其掺入凝胶中，用DLS和TEM对其进行了表征，银纳米粒子的粒径为7 nm，呈球形。在银纳米粒子存在下制备壳聚糖凝胶，并使用DSC和ESEM进行表征。还评价了释放银离子的能力和银离子活性。含银纳米粒子的壳聚糖凝胶的热性能与不含银的壳聚糖凝胶的热性能非常相似，但其热稳定性略有增加。这种水凝胶在至少两周内释放银离子，其抗菌性能与氯己定相当，氯己定是最常用于抗沙门氏菌的抗菌剂。变异体
A hybrid hydrogel composed of chitosan and silver nanoparticles was prepared. Silver nanoparticles were synthetized prior to their incorporation into the gel and were characterized using DLS and TEM, the size of silver nanoparticles was 7nm and present spherical morphology. The chitosan gel was prepared in the presence of silver nanoparticles and was characterized using DSC and ESEM. The ability to release silver ions and the bactericide activity were also evaluated. The thermal properties of the chitosan gel containing silver nanoparticles are very similar to those presented by the chitosan gel without silver but with a slight increment on its thermal stability. This hydrogel releases silver ions during at least two weeks and its bactericide properties are comparable to that of chlorhexidine which is the antibacterial most commonly used against S. mutans.