Impedance sensing of antibiotic interactions with a pathogenic E. coli outer membrane supported bilayer.
Impedance sensing of antibiotic interactions with a pathogenic E. coli outer membrane supported bilayer.
复制标题
抗生素相互作用与致病性大肠杆菌外膜支持双层的阻抗感应。
DOI:
10.1016/j.bios.2022.114045
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发表时间:
2022-05-15
影响因子:
12.6
通讯作者:
中科院分区:
文献类型:
--
作者:
Antibiotic resistance is a growing global health concern due to the decreasing number of antibiotics available for therapeutic use as more drug-resistant bacteria develop. Changes in the membrane properties of Gram-negative bacteria can influence their response to antibiotics and give rise to resistance. Thus, understanding the interactions between the bacterial membrane and antibiotics is important for elucidating microbial membrane properties to use for designing novel antimicrobial drugs. To study bacterial membrane-antibiotic interactions, we created a surface-supported planar bacterial outer membrane model on an optically-transparent, conducting polymer surface poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) that enables membrane characterization using fluorescence microscopy and electrochemical impedance spectroscopy (EIS). The membrane platform is fabricated using outer membrane vesicles (OMVs) isolated from clinically relevant Gram-negative bacteria, enterohemorrhagic Escherichia coli. This approach enables us to mimic the native components of the bacterial membrane by incorporating native lipids, membrane proteins, and lipopolysaccharides. Using EIS, we determined membrane impedance and captured membrane-antibiotic interactions using polymyxin B, bacitracin, and meropenem. This sensor platform incorporates aspects of the biological complexity found in bacterial outer membranes and by doing so offers a powerful, biomimetic approach to the study of antimicrobial drug interactions.
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影响因子:
3.9
作者:
Ghai I;Ghai S
通讯作者:
Ghai S
DOI:
10.1016/j.bbapap.2008.11.005
发表时间:
2009-05
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Delcour AH
通讯作者:
Delcour AH
影响因子:
17.1
作者:
Pappa, Anna-Maria;Liu, Han-Yuan;Owens, Roisin M.
通讯作者:
Owens, Roisin M.
影响因子:
2.9
作者:
Domingues, Marco M.;Inacio, Rita G.;Santos, Nuno C.
通讯作者:
Santos, Nuno C.
影响因子:
3.9
作者:
Liu, Han-Yuan;Pappa, Anna-Maria;Daniel, Susan
通讯作者:
Daniel, Susan