Optical Tweezers

Optical Tweezer at crosshairs moving microsphere in alginate gel. The softer the gel, the more the microsphere moves

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Ultrafast Optical Lithography in Azosilk

Ultrafast beam in nonlinear optical microscope used to write patterns in azobenzene modified silk

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LabVIEW virtual instrument block diagram

From a course in visual programming for biomedical instrumentation. This VI is also used in the course Design of Medical Instrumentation. The inputs and outputs have been moved under the while loop so you can see them.

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My research is based on the interactions of light and matter, and its use for biomedical applications. These interactions range from the use of light to pattern biomaterials to optical tweezers, in which the electric fields of tightly focussed laser light can apply appreciable forces to microscopic materials: cells in culture or microspheres used as probes of the stiffness and viscoelastic response of extracellular matrix. This enable us to non-invasively probe the effects of mechanical stimuli.

I am currently on research leave at the Optics Laboratory, EPFL Lausanne researching the use of deep learning to image through bio-friendly fibers such as gelatin supported deep eutectic solvents and silk.