This review is focused on the comparison of the biological and pharmacological activities of
usnic acid enantiomers. Most of the available data refer to (+)-usnic acid, while the left …

Staphylococcus aureus is a major human pathogen whose characteristics support its
success in various clinical settings including Cystic Fibrosis (CF). In CF, S. aureus is indeed …

Thymol and usnic acid as the important secondary metabolites of respectively Artemisia
haussknechtii and Protoparmeliopsis muralis were used for reduction and stabilizing of …

Most human infectious diseases are caused by microorganisms growing as biofilms. These
three-dimensional self-organized communities are embedded in a dense matrix allowing …

The aim of this study was to identify some of the secondary metabolites present in acetonic,
methanolic, and hexanic extracts of lichen Xanthoparmelia stenophylla and to examine their …

Lichens are symbiotic organisms formed by a fungus and one or more photosynthetic
partners which are usually alga or cyanobacterium. Their diverse and scarcely studied …

Candida albicans is a commensal coloniser of the human gastrointestinal tract and an
opportunistic pathogen, especially thanks to its capacity to form biofilms. This lifestyle is …

The present study aimed to prepare usnic acid (UA)-loaded chitosan (CS) nanoparticles (UA-
CS NPs) and evaluate its antibacterial activity against biofilm-forming pathogenic bacteria …

Plant-based medicines are the most appropriate and safe to be used as alternative
medicines compared to synthetic drugs. Since time immemorial, medicinal plants have …

Biofilms enable pathogenic bacteria to survive in unfavorable environments. As biofilm-
forming pathogens can cause rapid food spoilage and recurrent infections in humans …