[CCoE Notice] BME Seminar TODAY: Laser trapping and photonic-force microscopy for optical manipulation of functional micro- and nanoparticles

[Thayer, Natalie H]

[https://www.egr.uh.edu/sites/ccoe.egr.uh.edu/files/images/logos/Tertiary_Biomedical_color.jpg]

Seminar:

 Laser trapping and photonic-force microscopy for optical manipulation of functional micro- and nanoparticles

Monday, August 17th, 2015
SEC 204: 12:00 PM - 1:30 PM

Speaker: Prof. Andrey Fedyanin

Professor of Physics at the Lomonosov Moscow State University, Russia
Abstract: Characterization of viscoelastic properties of cellular membranes is a crucial problem of tissue physiology as it gives an opportunity to detect changes caused by various diseases or drug effects. In the talk, a new way to employ optical tweezers and active rheology approach to probe dynamically viscoelastic properties of the cells is discussed. We also report on a new approach to study viscoelastic properties of the red blood cells (RBCs), which is based on the combination of active rheology in optical tweezers and an analysis of forced RBC motion when the cell is optically trapped. The effect of magnetic interactions on the Brownian motion of two magnetic microparticles is investigated when the cross-correlations of the thermal fluctuations of the two magnetic microbeads are directly measured using double-trap optical tweezers. An experimental study of the interaction between a single dielectric microparticles and the evanescent field of the Bloch surface wave in a one-dimensional photonic crystal is presented. The potential of one-dimensional photonic crystals for the optical manipulation of microparticles is discussed.
Bio: Dr. Andrey Fedyanin received his M.S. in Physics in 1995 and Ph.D in Physics in 1997 from Lomonosov Moscow State University. He was then employed as a research associate in the same institution. Since 2011 he has been a full professor in Faculty of Physics, Lomonosov Moscow State University. His research is focused on photonic-force microscopy of properly designed single micro- and nanoparticles, development of optical tweezers for optical isolation and manipulation of individual and coupled trapped nanoparticles, studies of plasmonic and magnetoplasmonic effects in nanostructures, and nonlinear nanophotonics of metamaterials and metasurfaces.


(PIZZA AND REFRESHMENTS WILL BE SERVED!)

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