The aim of this project is to propose a possible new platform for cancer therapy optimization based on Dynamic Light Scattering (DLS), a non-invasive, low-intensity photonic interrogation technique. Firstly, the system is used to investigate properties of different cell lines without administering drugs to see differences in cell lines and cell states as a proof of their sensitivity with respect to cellular dynamics. Afterwards, DLS is used to investigate cancer cells under an incrementally-increased dose delivery of a therapeutic agent in order to precisely determine its apoptosis-inducing concentration. The platform takes advantage of nano-scale technology and DLS in order to measure the cell dynamics in real time as function of drug dose, ranging from pM to mM, and to obtain the dose-response profile.