Vaccines based on recombinant protein antigens often require immunostimulants. Both nanoparticles and chitosan and its derivatives can enhance immunogenicity. For this reason, in the presented studies, PLGA nanoparticles were functionalized with different chitosan derivatives and optimized as effect enhancers for the pneumococcal protein antigen PspA4Pro.

In microfluidic systems, analyses can be performed on a miniaturized scale without the use of complex laboratory equipment. In this context, DNA purification and concentration pose a particular challenge. To improve this, a disposable microfluidic device is functionalized with different chitosans for DNA binding in the presented study. This will then be used to detect eDNA of invasive species from river water samples.