期刊
MEMBRANES
卷 11, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/membranes11090707
关键词
antibiotics; Langmuir monolayer; bacterial membrane; LPS; phospholipids; antibiotic resistance
类别
资金
- Ministry of Education and Science, Poland [0912/SBAD/2101]
The widespread presence of antibiotics in the environment has caused various issues that negatively impact the world of bacteria. Understanding the interaction mechanism of antibiotics with bacterial membranes is crucial for addressing these problems.
The amounts of antibiotics of anthropogenic origin released and accumulated in the environment are known to have a negative impact on local communities of microorganisms, which leads to disturbances in the course of the biodegradation process and to growing antimicrobial resistance. This mini-review covers up-to-date information regarding problems related to the omnipresence of antibiotics and their consequences for the world of bacteria. In order to understand the interaction of antibiotics with bacterial membranes, it is necessary to explain their interaction mechanism at the molecular level. Such molecular-level interactions can be probed with Langmuir monolayers representing the cell membrane. This mini-review describes monolayer experiments undertaken to investigate the impact of selected antibiotics on components of biomembranes, with particular emphasis on the role and content of individual phospholipids and lipopolysaccharides (LPS). It is shown that the Langmuir technique may provide information about the interactions between antibiotics and lipids at the mixed film surface (pi-A isotherm) and about the penetration of the active substances into the phospholipid monolayer model membranes (relaxation of the monolayer). Effects induced by antibiotics on the bacterial membrane may be correlated with their bactericidal activity, which may be vital for the selection of appropriate bacterial consortia that would ensure a high degradation efficiency of pharmaceuticals in the environment.
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