Semiconductor quantum dots are quantum light sources that are currently attracting significant attention. They are already being applied in lighting and displays and are expected to be utilized in quantum cryptography and quantum computing in the near future. In particular, when quantum dots are combined with nanostructures, the signal quality—such as reproducibility and directionality—is expected to improve significantly. 

 Bio-semiconductor materials, which combine biological and semiconductor materials, are expected to exhibit novel structures and properties that did not exist before. Currently, our research focuses on structures that integrate genetically engineered biological materials with quantum dots. 

 For three-dimensional nanostructures to be widely utilized, manufacturing techniques that enable easier and faster fabrication are essential. To achieve rapid and simple fabrication of nanostructures in three dimensions, we have designed a new type of 3D printer. So far, we have developed composite nanostructures by using mixed colloidal nanoparticles as ink. Moving forward, our goal is to fabricate nano-bio composite 3D structures with functionalization using biomaterials. 

 We develop nano-bio material-based biosensors and collaborate with clinical researchers to apply them in medical diagnostics research.