HYBRIDIMER: Plasmonics and Photonics properties of Hybrid nanostructures assembled by DNA

To reach our goal, we have synthesized original AgInS2 QDs, made of nontoxic heavy metals, then performed their functionalization with DNA strands and finally studied their assembly by DNA hybridization with an organic fluorophore and gold nanorods. The great advantage of our hybrid nanostructures is the precise inter-particle distance control by the rigid DNA linkers, enabling in-depth studies of FRET processes and plasmon-exciton interactions. It also allows exploring a set of applications in bio-sensing exploiting DNA hybridization.

This thesis is co-funded by Labex LANEF.

Ternary AgInS2 Quantum Dots: Synthesis and DNA grafting for biosensing applications. N. Daveau, M. Moreau, A. Delices, Y. Hou, C. Rivaux, W.L. Ling, P. Reiss, K. Kheng, D. Gasparutto, IEEE 23rd International Conference on Nanotechnology (NANO), 2023, 748-753 (DOI: 10.1109/NANO58406.2023.10231192)