Lung cancer model on chip for drug testing

In this paper we have simulated an in vitro lung cancer microenvironment by dielectrophoresis (DEP) patterning. Heterogeneous cells were patterned on the glass substrate, above which a microfluidic gradient is integrated to generate different concentration of target therapy drug (Iressa). Taking advantage of DEP pattern and microfluidic gradient, we designed a biochip to mimic the in vivo conditions. The influence of drug treatment for cell patterning is better than the non-patterned case as visualized in cell viability rate by MTT assay.