在废水中的微生物的光动态无活化,使用基于氨酸的树枝状体溶液
Micaela E Grassano1, Jazmín Narcedalia Castillo Cervantes2, Julián Salas Pájaro1
1Departamento de Química, FCEFQN, Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA-CONICET), Universidad Nacional de Río Cuarto, Ruta 36 Km 601, 5800, Córdoba, Río Cuarto, Argentina.
概括
使用一种新型的氨酸 - 登德里默结合物进行抗微生物光动力失活 (aPDI) 显示了废水处理的潜力. 这种方法在可见光下实现了适度的微生物减少,但需要进一步优化,以持续无活化.
科学领域:
- 环境科学 环境科学
- 摄影化学的使用.
- 微生物学 微生物学
背景情况:
- 抗微生物光动力失活 (aPDI) 提供了一种有前途的方法来减少废水等复杂环境中的微生物负载.
- 开发高效的光敏化剂对于推进aPDI应用至关重要.
研究的目的:
- 合成和表征一个氨酸 - 登德里默结合物 (Pf-Ds-G2.0) 用于在aPDI中作为光敏感剂.
- 在真实的废水样本中,在可见光下评估Pf-Ds-G2.0的抗菌疗效.
主要方法:
- 氨酸 - 登德里默结合物的合成和结构特征 (Pf-Ds-G2.0).
- 评估单点氧气生成的量子产量.
- 使用OD和CFU测量对废水中依赖光的抗微生物活性进行评估.
主要成果:
- 合成的Pf-Ds-G2.0产生了单片氧,量子产量为0.35.
- 使用Pf-Ds-G2.0可见光照射导致微生物生物量中度减少 (在6分钟后约20%).
- 黑暗对照没有显示抗菌作用;在更长的照射时间发生了部分再生.
结论:
- 树突性氨酸显示了通过aPDI处理废水的潜力.
- 为了在复杂系统中持续无活化,需要优化辐射条件,氧气可用性和敏感剂配方.
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