While significant research efforts have broadened the understanding of toxicity of QDs, there are large discrepancies in the literature and questions still remains to be answered. Diversity of this class material as compared to normal chemical substances makes the assessment of their toxicity very challenging. As their toxicity may also be dynamic depending on the environmental factors such as pH level, light exposure and cell type, traditional methods of assessing toxicity of chemicals such as LD 50 are not applicable for QDs. Therefore, researchers are focusing on introducing novel approaches and adapting existing methods to include this unique class of materials.  Furthermore, novel strategies to engineer safer QDs are still under exploration by the scientific community. A recent novelty in the field is the discovery of carbon quantum dots , a new generation of optically-active nanoparticles potentially capable of replacing semiconductor QDs, but with the advantage of much lower toxicity.
By combining confinement inside heterostructures with optical confinement at the micro and nanoscale, new devices are created where electron and photons flows are engineered. This laboratory emphasizes the use of these techniques to unlock the scientific and technological potential of the mid-infrared and terahertz spectrum of the electromagnetic radiation.
One area of research concerns the Quantum Cascade Laser (QCL) and its implementations for generating terahertz, frequency agile devices as well as optical frequency combs. The group also focuses on the use of metamaterials and the physics of the ultra-strong light-matter coupling.