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生物膜相关院内感染的新型消毒技术研究进展

Advances in Novel Disinfection Technologies for Biofilm-Associated Nosocomial Infections

  • 摘要: 临床上生物膜的消除是控制医院感染至关重要的一环。生物膜一旦在管腔型器械中定植,采用传统消毒方法难以将其去除。传统的消毒方法现面临耐药性、腐蚀性、细胞毒性、消毒副产物残留和环境污染等一系列的问题。因此,开发针对生物膜清除的新型消毒技术具有重要意义。微酸性电解水、等离子体技术、表面改性技术、纳米材料消毒技术、噬菌体消毒技术、酶解消毒技术等新型消毒技术不断涌现,这些技术通过活性氧爆发、光催化氧化、物理破坏及生物靶向等机制协同增效,在对抗生物膜方面表现优异。本研究综述了上述新型消毒技术的特点、机制及潜在应用场景,并重点关注对医院环境表面常见致病菌生物膜的作用效果,为这些消毒技术的实际应用转化以及消毒新策略的开发提供参考的依据。

     

    Abstract: The elimination of biofilms is a crucial step in controlling hospital-acquired infections. Once biofilms colonize luminal instruments, it is difficult to remove them using traditional disinfection methods. Conventional disinfection approaches now face a series of challenges, including microbial resistance, corrosiveness, cytotoxicity, residual disinfection byproducts, and environmental pollution. Therefore, developing novel disinfection technologies specifically targeting biofilm removal is vitally important. New disinfection technologies, such as slightly acidic electrolyzed water, plasma technology, surface modification techniques, nanomaterial-based disinfection, bacteriophage disinfection, and enzymatic disinfection, are constantly emerging. These technologies exhibit excellent performance against biofilms by leveraging the synergistic effects of multiple mechanisms, including the reactive oxygen species (ROS) burst, photocatalytic oxidation, physical disruption, and biological targeting. This review summarizes the characteristics, underlying mechanisms, and potential application scenarios of these novel disinfection technologies, with a particular focus on their effects against biofilms formed by common pathogenic bacteria on surfaces in hospital settings. It aims to provide a reference basis for the practical application and translation of these disinfection technologies and the development of new disinfection strategies.

     

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