Congratulations, Dr Carattino!

Congratulations to Dr Aquiles Carattino, who successfully defended his PhD thesis titled “Gold Nanorod Photoluminescence — Applications to Imaging and Temperature Sensing” on Thursday 9 March 2017 at Leiden University’s Academy Building in the traditional manner. Aquiles Carattino (ctr), flanked by his paranymphs Martín Caldarola (l) and Pravin Kumar (r)

New publication on single-molecule electrochemistry

We are proud of our recent publication on single-molecule electrochemistry using enhanced fluorescence as readout.

At both ends of the nanorod (yellow), the incoming electromagnetic field of light is amplified by a factor 300 (red spots). If a molecule (blue dots) is situated there, its fluorescent signal is gets 500 times stronger.

We used gold nanorods as nanoatennas to reveal single-molecules of a redox sensitive dye, Methylene Blue, and studied the electrochemical properties of this molecule one by one.

Leiden University’s Press release can be found here and a comment at phys.org here

Publication: M.Sc. Weichun Zhang, Dr. Martín Caldarola, M.Sc. Biswajit Pradhan, Prof. Dr. Michel Orrit, ‘Gold Nanorod-Enhanced Fluorescence Enables Single-Molecule Electrochemistry of Methylene Blue‘, Angewandte Chemie