用经过认证的微生物参考材料在可再生生成的生物气溶中快速准确量化活性的细菌
Meng Wang1, Hanyue Ding1,2, Zhenyan Zhang1,3
1Center for Advanced Measurement Science, National Institute of Metrology, Beijing100029, China.
Analytical chemistry
|March 12, 2026
概括
研究人员开发了一种标准的微生物材料和快速流动细胞计法,以准确评估生物保护产品对空气中的细菌的质量. 这提高了呼吸道疾病预防的测试效率和标准化.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 公共卫生 公共卫生
背景情况:
- 生物气溶是传播呼吸道疾病的关键,需要有效的生物保护产品.
- 目前评估生物保护产品疗效的方法缺乏可复制性和可追溯性,原因是生物气溶的产生和评估不一致.
- 标准化方法对于可靠的产品质量控制至关重要,这些产品旨在减轻生物气溶传播.
研究的目的:
- 开发一种微生物参考材料,用于持续生成生物气溶.
- 建立一种快速量化方法,以确定生物气溶中可活性的细菌.
- 为了使生物保护产品的准确和可追溯的质量评估.
主要方法:
- 选择了一种坚固的 * Staphylococcus aureus * 菌株,因为它能耐受生物气溶应激.
- 开发了一种经过认证的微生物参考材料,用于可再生的生物气溶生产.
- 使用多参数流细胞计 (FCM) 来通过酶活性评估细菌活力.
主要成果:
- 证明了细菌菌株,培养条件和生长阶段会影响生物气溶生成效率.
- 创建了一个可追溯的微生物参考材料,确保稳定的生物气溶生产.
- 开发了一种基于FCM的快速量化方法,用于可活的空气传播细菌,与传统方法有很高的相关性 (R2 = 0.982).
- 在35分钟内检测到口罩过效率.
结论:
- 成功开发了微生物参考材料和基于FCM的方法来评估生物保护产品的质量.
- 这种新方法提供了对生物气溶过效率的快速,准确和标准化的评估.
- 这些发现提高了生物气溶检测效率,并促进了生物保护材料质量评估的标准化.
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