Fungal infection with Candida of dentures is a common complication. The adhesion of microorganisms such as Candida is influenced by material properties such as surface charge, hydrophobicity and roughness. The formation of oral biofilms is associated with caries, periodontitis or denture stomatitis. It is therefore important to prevent the formation of biofilms, also because antifungal agents are of little help.
The polymer polymethyl methacrylate (PMMA) is widely used for denture fabrication due to its biocompatibility, but it is susceptible to biofilm formation. Therefore, research into strategies to endow dentures with antifungal properties is important.

Listeriosis is a foodborne infectious disease caused by the pathogen Listeria monocytogenes and is particularly serious for pregnant women and immunocompromised persons. The pathogen is spread mainly through spoiled and contaminated food or animal feed. Methods for the detection of Listeria monocytogenes (LM) on surfaces in the food industry have been developed to control the spread of the pathogen, but these are time-consuming and require special equipment. In the presented study, a fluorescence sandwich immunoassay was developed using a chitosan cellulose nanocrystal (CNC) membrane to detect Listeria monocytogenes on surfaces.