细菌生物膜的检测与控制

Olorunjuwon O. Bello, Favour T. Martins, Temitope K. Bello, Bamikole W. Osungbemiro, Adebanke M. Ajagunna
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引用次数: 0

摘要

生物膜是生活在细胞外聚合物质(EPS)自产基质中的一团细菌,与生物或非生物表面相连,表明生物膜可以存在于各种生物和非生物表面。非生物表面包括地板、墙壁、排水管、设备和食物接触表面,以及生物表面,如肉类、口腔、肠道、泌尿生殖道和皮肤。人类是生物膜和细菌生长的生物微环境的良好来源,在大多数情况下导致传染病。细菌繁殖的最佳生物环境需要营养、湿度和合适的温度。生物膜起源于惰性表面或死亡组织,它们经常出现在医疗设备和死亡组织碎片上,但它们也可以在活组织上形成。生物膜对恶劣环境的耐受性为微生物种群提供了有利的栖息地,允许微生物之间更有效的化学物质和信息流动。因此,生物膜耐药性是微生物发育的一种自我保护策略。细菌生物膜可通过直接法和间接法检测,且可控制。细菌生物膜是抗微生物细菌发展和传播的主要原因,造成严重感染和死亡率增加。
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Detection and Control of Bacterial Biofilms
A biofilm is a clump of bacteria living in a self-produced matrix of extracellular polymeric substances (EPS) linked to a biotic or abiotic surface, indicating that biofilms can exist on a variety of biotic and abiotic surfaces. Abiotic surfaces include floors, walls, drains, equipment, and food-contact surfaces, as well as biotic surfaces like meat, the oral cavity, the intestine, the urogenital tract, and the skin. Humans are a good source of biotic microenvironments for biofilm and bacterial growth, which leads to infectious diseases in most cases. The optimum biotic environment for bacteria to thrive requires a supply of nutrients, humidity, and the right temperature. Biofilms originate on inert surfaces or dead tissue, and they're frequent on medical devices and dead tissue fragments, but they can also form on living tissues. Biofilms' tolerance to harsh environments provides a favorable habitat for microbial populations, allowing for a more efficient flow of chemicals and information amongst microorganisms. As a result, biofilm resistance is a self-protective strategy for microbial development. Bacterial biofilms are detectable by direct and indirect methods and they could be controlled. Bacterial biofilm is a major cause of antimicrobial-resistant bacteria's development and spread, causing severe infections and increased mortality rates.
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