Department of Physics, Engineering Physics & Astronomy

Queen's University
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Department of Physics, Engineering Physics & Astronomy
Department of Physics, Engineering Physics & Astronomy

Departmental Colloquium-Nano-Bio-Optomechanics: Nanoaperture Tweezers Probe Single Nanoparticles, Proteins, and their Interactions

Reuven Gordon,
Canada Research Chair in Nanoplasmonics, 
Professor in ECE,
University of Victoria (Canada)

October 16th, 2015
1:30 p.m. in Theatre A

Abstract:

Nanoparticles in the single digit nanometer range can be easily isolated and studied with low optical powers using nanoaperture tweezers. We have studied individual proteins and their interactions with small molecules, DNA and antibodies. Recently, using the fluctuations of the trapped object, we have pioneered a new way to “listen” to the vibrations of nanoparticles in the 100 GHz – 1 THz range; the approach is called extraordinary acoustic Raman (EAR). EAR gives unprecedented low frequency spectra of individual proteins in solution, allowing for identification and analysis, as well as probing their role in biological functions. We have also used EAR to study the elastic properties, shape and size of various individual nanoparticles. 

 

BiographyReuven Gordon is the Canada Research Chair in Nanoplasmonics and a Professor in ECE, University of Victoria (Canada). He has over 120 papers (7 invited), 3 book chapters, 3 patents (+4 applications). His recent distinctions include the Craigdarroch Silver Medal, an AGAUR Visiting Professorship and an Accelerate BC Industry Impact Award.