I'm Henriette de Bruijn, a scientific researcher in the field of photodynamic therapy (PDT). Started as a research technician at projects investigating 5-aminolevulinic acid (ALA) based PDT and defended my PhD entitled Light Fractioned ALA-PDT in 2008. Since than involved in many projects researching improving the response to PDT with various photosensitizers, targeted and non-targeted, on its own or in combination with immunotherapy employing different preclinical models and in-vitro techniques.