Abstract
Biotechnology has been rapidly growing in recent years with unprecedent achievements in regenerative medicine and tissue engineering. 3D bio-printing is one of the latest technologies used to develop complex structures mimicking organs and tissues, as well as functional 3D cell scaffolds. Engineered cell scaffolds supplemented with organic materials can be used as bio‐electronic interfaces and biomedical sensing. In this work, a novel 3D bioprinted cell scaffold enhanced with light-responsive organic semiconducting polymer nanoparticles is presented. The lightsensitive cell scaffold can be used for light control and modulation of cellular activities with several applications in neural engineering and regenerative medicine.