led紫外线灯对足部感染指标菌的杀菌效果研究.docVIP

LED紫外线灯对足部感染指标菌的杀菌效果研究 　　[摘要] 目的 观察LED紫外线灯在不同照射距离、不同照射时间条件下对金黄色葡萄球菌、白色念珠菌、黑曲霉菌的杀菌效果。 方法 采用载体定量杀菌试验，菌片经LED紫外线灯照射后，将细菌洗下制成细菌悬液后进行活菌培养计数，比较杀菌效果。 结果 0.12W LED紫外线灯在垂直照射距离为2 cm时照射3 min，对金黄色葡萄球菌、白色念珠菌、黑曲霉菌的杀灭率均为100.00%；在垂直照射距离为3 cm时照射时间为4 min，对金黄色葡萄球菌、白色念珠菌、黑曲霉菌的杀灭率均为100.00%；在垂直照射距离为4 cm、5 cm时照射时间为5 min，对金黄色葡萄球菌、白色念珠菌、黑曲霉菌的杀灭率均为100.00%。 结论 0.12W LED紫外线灯可杀灭足部感染指标菌。 　　[关键词] LED紫外线灯；金黄色葡萄球菌；白色念珠菌；黑曲霉菌；杀菌效果 　　[中图分类号] R187.4 [文献标识码] B [文章编号] 1673-9701（2017）03-0117-03 　　Study on the bactericidal effect of LED ultraviolet light on foot infection of indicator bacteria 　　WANG Chen WANG Yunyang WANG Yangang 　　Department of Endocrinology and Metabolic Diseases， the Affiliated Hospital of Qingdao University， Qingdao 266003， China 　　[Abstract] Objective To observe the anti-bacterial effect of LED ultraviolet light on staphylococcus aureus， candida albicans and aspergillus niger under different irradiation distances and different irradiation times. Methods Quantitative sterilization test was carried out. After the bacteria carrier was irradiated with LED ultraviolet light， the bacteria were washed down the carrier and made into bacterial suspension to carry out viable culture count. The anti-bacterial effect was compared. Results Staphylococcus aureus， candida albicans and aspergillus niger were irradiated by 0.12W LED UV light for 3 min in the vertical irradiation distance of 2 cm， and the killing rate was 100.00%； the bacteria were irradiated for 4 min in the vertical irradiation distance of 3 cm， and the killing rate was 100.00%； the bacteria were irradiated for 5 min in the vertical irradiation distance of 4 cm and 5 cm， and the killing rate was 100.00%. Conclusion 0.12W LED UV light can kill the foot infection indicator bacteria. 　　[Key words] LED ultraviolet light； Staphylococcus aureus； Candida albicans； Aspergillus niger； Anti-bacterial effect 　　?S着时代的发展，人们对生活品质的要求也达到了前所未有的高度。鞋一经穿过，鞋内汗渍为细菌生长提供良好的生存环境，细菌在鞋内生长繁殖，容易引起脚气等多种脚部皮肤疾病，同时产生的臭味给居家生活带来不便。为了解决这一问题，目前我国已经有装有紫外线灯或臭氧产