Usnic acid is a prominent lichen-derived secondary metabolite characterised by a dibenzofuran scaffold and noted for diverse biological activities, including antimicrobial, anti-inflammatory, ...

Usnic acid is a natural antibacterial compound found in lichens. It is not a carboxylic acid; instead, it gets acidity from the phenolic hydroxyl groups. Its pK a is 4.4. More than 90 years after its ...

Scientists at Chalmers University of Technology, Sweden, have developed graphene coatings that act as carriers capable of releasing the bactericidal agent usnic acid over prolonged periods, protecting ...

The development of antibiotics generated a revolution in the way we look and treat bacterial infections. In spite of the initial success, new problems came along and raised allergic reactions, ...

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