Quantum Dots

Laboratory for Molecular Photonics

Department of Chemistry

University of Miami

Goal: The goal of this project was the identification of operating principles to switch the luminescence of semiconductor quantum dots under optical control.

Results: The Laboratory of Molecular Photonics developed a strategy to activate the luminescence of biocompatible quantum dots under the influence of optical stimulations on the basis of the photoinduced cleavage of quenchers from polymeric ligands adsorbed on their surface.

Keywords: Luminescence Molecular Switches Nanoparticles Photocages Polymers Quantum Dots

Selected Articles

  "Biocompatible CdSe–ZnS Core–Shell Quantum Dots Coated with Hydrophilic Polythiols": I. Yildiz, B. McCaughan, S. F. Cruickshank, J. F. Callan, F. M. Raymo, Langmuir, 2009, 25, 7090–7096

  "Structural Implications on the Electrochemical and Spectroscopic Signature of CdSe–ZnS Core–Shell Quantum Dots": S. Impellizzeri, S. Monaco, I. Yildiz, M. Amelia, A. Credi, F. M. Raymo, J. Phys. Chem. C, 2010, 114, 7007–7013

  "Hydrophilic CdSe–ZnS Core–Shell Quantum Dots with Reactive Functional Groups on Their Surface": I. Yildiz, E. Deniz, B. McCaughan, S. F. Cruickshank, J. F. Callan, F. M. Raymo, Langmuir, 2010, 26, 11503–11511

 "Photoinduced Enhancement in the Luminescence of Hydrophilic Quantum Dots Coated with Photocleavable Ligands": S. Impellizzeri, B. McCaughan, J. F. Callan, F. M. Raymo, J. Am. Chem. Soc., 2012, 134, 2276–2283

Selected Reviews

  "Luminescent Chemosensors Based on Semiconductor Quantum Dots": F. M. Raymo, I. Yildiz, Phys. Chem. Chem. Phys., 2007, 9, 2036–2043

  "Electron and Energy Transfer Mechanisms to Switch the Luminescence of Semiconductor Quantum Dots": I. Yildiz, M. Tomasulo, F. M. Raymo, J. Mater. Chem., 2008, 18, 5577–5584

The luminescence of CdSeZnS coreshell quantum dots, coated with photocleavable quenchers, can be photoactivated intracellularly