Implications of lipid monolayer charge characteristics on their selective interactions with a short antimicrobial peptide

D Ciumac, RA Campbell, H Xu, LA Clifton… - Colloids and Surfaces B …, 2017 - Elsevier
Many antimicrobial peptides (AMPs) target bacterial membranes and they kill bacteria by
causing structural disruptions. One of the fundamental issues however lies in the selective …

Structural elucidation upon binding of antimicrobial peptides into binary mixed lipid monolayers mimicking bacterial membranes

D Ciumac, H Gong, RA Campbell, M Campana… - Journal of colloid and …, 2021 - Elsevier
Abstract Hypothesis Antimicrobial peptides (AMPs) kill microorganisms by causing structural
damage to bacterial membranes. Different microorganisms often require a different type and …

Membrane targeting cationic antimicrobial peptides

D Ciumac, H Gong, X Hu, JR Lu - Journal of colloid and interface science, 2019 - Elsevier
Many short cationic peptides are amphiphilic and are often termed antimicrobial peptides
(AMPs) as they can kill various microorganisms. These AMPs have largely been discovered …

[HTML][HTML] Insertion selectivity of antimicrobial peptide protegrin-1 into lipid monolayers: effect of head group electrostatics and tail group packing

Y Ishitsuka, DS Pham, AJ Waring, RI Lehrer… - Biochimica et Biophysica …, 2006 - Elsevier
The ability to selectively target the harmful microbial membrane over that of the host cell is
one of the most important characteristics of the antimicrobial peptides (AMPs). This …

Membrane interaction of antimicrobial peptides using E. coli lipid extract as model bacterial cell membranes and SFG spectroscopy

L Soblosky, A Ramamoorthy, Z Chen - Chemistry and physics of lipids, 2015 - Elsevier
Supported lipid bilayers are used as a convenient model cell membrane system to study
biologically important molecule–lipid interactions in situ. However, the lipid bilayer models …

Influence of acyl chain saturation on the membrane-binding activity of a short antimicrobial peptide

D Ciumac, RA Campbell, LA Clifton, H Xu… - ACS …, 2017 - ACS Publications
Different bacterial types and their living environments can lead to different saturations in the
chains of their membrane lipids. Such structural differences may influence the efficacy of …

[HTML][HTML] How do antimicrobial peptides disrupt the lipopolysaccharide membrane leaflet of Gram-negative bacteria?

H Gong, X Hu, L Zhang, K Fa, M Liao, H Liu… - Journal of Colloid and …, 2023 - Elsevier
Hypothesis: It is widely regarded that antimicrobial peptides (AMPs) kill bacteria by
physically disrupting microbial membranes and causing cytoplasmic leakage, but it remains …

[HTML][HTML] Guanidino groups greatly enhance the action of antimicrobial peptidomimetics against bacterial cytoplasmic membranes

K Andreev, C Bianchi, JS Laursen, L Citterio… - … et Biophysica Acta (BBA …, 2014 - Elsevier
Antimicrobial peptides or their synthetic mimics are a promising class of potential new
antibiotics. Herein we assess the effect of the type of cationic side chain (ie, guanidino vs …

Characterisation of cell membrane interaction mechanisms of antimicrobial peptides by electrical bilayer recording

D Priyadarshini, J Ivica, F Separovic… - Biophysical …, 2022 - Elsevier
Many antimicrobial peptides (AMPs) are cationic host defence peptides (HDPs) that interact
with microbial membranes. This ability may lead to implementation of AMPs as therapeutics …

Morphological changes induced by the action of antimicrobial peptides on supported lipid bilayers

A Arouri, V Kiessling, L Tamm, M Dathe… - The Journal of Physical …, 2011 - ACS Publications
We utilized epifluorescence microscopy to investigate the morphological changes in labeled
lipid bilayers supported on quartz surfaces (SLBs) induced by the interaction of cationic …