Optical transduction of the chemical sensitivity of porphyrin nanotubes by CSPT platform

Nanostructured molecular assembly provides, in many cases, peculiar properties that are not found in the individual constituents. Among three-dimensional arrangements the tubular structures are particularly appealing for chemical sensor applications for expected surface increase and cavity effects. In this paper, the sensing properties of self-assembled nanotubes of oppositely charged porphyrins are investigated by measuring the changes of their optical properties. Computer screen photoassisted technology (CSPT) is utilized as a simple and practice platform to test the optical sensitivity of sensing materials and to develop chemical sensing systems.