Carbon dots – Imaging, Sensing and Beyond скачать в хорошем качестве

Carbon dots – Imaging, Sensing and Beyond

In this seminar, Prof. Rafik Naccache presented a relatively new class of luminescent nanomaterials, namely carbon dots. Carbon dots, sometimes known as carbongenic dots, are carbon, oxygen, nitrogen and hydrogen containing materials with the first two elements typically accounting for ~90% of their elemental composition. Moreover, they are typically water dispersible and can be prepared from an abundant number of inexpensive sources including small molecules such as citric acid, amino acids and sugars. While they are small in size (typically 1-10 nm), they can offer a high quantum yield of emission, a process that is controlled through passivation of the surface with an organic reagent. Of particular interest are their optical properties, which can be tailored via careful selection of the starting precursors and the desired synthesis route resulting in the ability to generate fluorescence from the blue to the near infrared regions of the spectrum. In addition to their versatile optical properties, these carbon dots are generally known to have low cytotoxicity and good biocompatibility. Combined with their small size and versatile optical properties, developing carbon dots as a nanoplatform can be achieved as they lend themselves for integration in a myriad of applications most notably in bio-imaging and sensing. Discover more: https://nanoparticlelab.com/ About Prof. Rafik Naccache: His group’s research program focuses on the study of the fundamental properties of fluorescent carbon nanomaterials and hybrid nanosystems for the development of catalysis, sensing and imaging applications https://www.concordia.ca/research/nan... https://scholar.google.com/citations?...