632.8 nm He-Ne激光对金黄色葡萄球菌菌落的杀菌作用

Q3 Medicine
W. H. Salih, S. H. Hassan
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引用次数: 0

摘要

本文研究了632.8 nm低能级激光对金黄色葡萄球菌的杀灭效果,以指出激光的有效功率和照射时间对金黄色葡萄球菌的杀灭效果。据报道,低水平激光可用于感染伤口、组织坏死、神经损伤、骨关节炎或其他慢性疼痛综合征。已经进行了大量的研究来量化有效的激光参数,即剂量,功率和照射时间,最终导致临床实施。将金黄色葡萄球菌菌落暴露在功率为1和3mw的激光剂量下,暴露时间从3到30分钟不等。细菌菌落是从一个伤口发炎的病人身上分离出来的。制备了两组细菌菌落,并将其暴露于激光束下。接下来,将细菌菌落暴露于激光剂量之前和之后进行比较。结果表明,两种剂量的激光治疗都减少了细菌菌落的数量;在不同的暴露时间和浓度下的1和3毫瓦。结果表明,He-Ne激光对金黄色葡萄球菌的杀菌效果具有明显的剂量依赖性,在3 mW下持续30分钟,将细菌数量减少到其初始数量的2%以下更为有效。结果表明,菌落数量随暴露时间的增加而减少。适当剂量的632.8 nm可以杀死金黄色葡萄球菌,这表明在细菌感染的临床病例中可能有类似的效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The bactericidal effects of 632.8 nm He-Ne laser on Staphylococcus aureus colonies
The bactericidal effect of 632.8 nm low level laser has been studied in order to point out both the effective power and laser exposure time on Staphylococcus aureus, which is reported to be involved in several dermatology problems. Low level laser has been reported to be useful for infected wounds, tissue necrosis, nerve injury, osteoarthritis or other chronic pain syndromes. Numerous studies have been conducted to quantify the effective laser parameters, i.e. dose, power, and exposure time, which ultimately leads toward clinical implementation. Staphylococcus aureus bacteria colonies were exposed to laser doses with powers of both 1 and 3 mW at different exposure times varies between 3 to 30 minutes. The bacterial colonies were isolated from a patient with inflamed wounds. Two sets of bacterial colonies were prepared to be exposed to laser beam. Next, the bacterial colonies were compared before and after exposing them to laser doses. The results showed that laser sessions have reduced the number of the bacterial colonies for both doses; 1 and 3 mw at the different exposure times and concentrations. The results revealed significant dose dependent bactericidal effects of He-Ne laser on Staphylococcus aureus at 3 mW for 30 minutes, which was found to be more effective in reducing the amount of bacteria to the less than 2% of its initial count. The results exhibited the reduction of the number of colonies as a function of exposure time. Appropriate doses of 632.8 nm can kill Staphylococcus aureus, suggesting that a similar effect may be used in clinical cases of bacterial infection.
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来源期刊
Biomedical Photonics
Biomedical Photonics Medicine-Surgery
CiteScore
1.80
自引率
0.00%
发文量
19
审稿时长
8 weeks
期刊介绍: The main goal of the journal – to promote the development of Russian biomedical photonics and implementation of its advances into medical practice. The primary objectives: - Presentation of up-to-date results of scientific and in research and scientific and practical (clinical and experimental) activity in the field of biomedical photonics. - Development of united Russian media for integration of knowledge and experience of scientists and practitioners in this field. - Distribution of best practices in laser medicine to regions. - Keeping the clinicians informed about new methods and devices for laser medicine - Approval of investigations of Ph.D candidates and applicants.
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