We are working on development of highly selective VOC gas sensor based on porous materials (zeolites and MOFs) functionalized MOx. Our work target to build a sensing device for real environment monitoring beyong the laboratory. We also studied structural defects and disorders, composition and topological properties of plasma facing components of JET-ILW tokamak using Raman spectroscopy. In the past, we succeed to develop a cost effective, highly selective and fast response hydrogen gas sensor.