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Updated: Feb 24, 2026

Production and Visualization of Bacterial Spheroplasts and Protoplasts to Characterize Antimicrobial Peptide Localization
Published on: August 11, 2018
Branched Peptides: Acridine and Boronic Acid Derivatives as Antimicrobial Agents
Jessica E Wynn1, Wenyu Zhang1, Joseph O Falkinham2,3
1Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States.
Abstract:
The emergence of microbial resistance presents a challenge in the development of next generation therapeutics. Herein, we report the discovery of branched peptides decorated with acridine and boronic acid moieties with potent antimicrobial activity. The results revealed minimal inhibitory concentrations (MICs) as low as 1 μg/mL against Staphylococcus aureus, Candida albicans, and Escherichia coli. These peptides were nonhemolytic, and significantly inhibited growth of C. albicans in suspension and biofilm formation. Structure-activity relationship studies suggest the acridine functional group as a driving force for the potent inhibition observed against bacteria.
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