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17 January 2018

Exclusion zones created by pulsating bubbles in microfluidics

Under ultrasonic excitation, microfluidic bubbles can create steady flows called streaming. This phenomenon can be useful to create very strong flows in microfluidics, as streaming velocities can reach up to a few millimetres per second for bubbles sizing around 50 microns in diameter.

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9 January 2018

Grand Prix GFP awarded to Jean-Louis Barrat

The French Polymers Group (GFP) has awarded its 2017 Grand Prix to Jean-Louis Barrat.

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28 November 2017

Hollow sphere swims like a jellyfish thanks to sound waves.

Powering microrobots inside a human organism would be useful for delivering small quantities of drugs at the right place, thus increasing their efficiency and reducing the possible side effects.

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23 November 2017

A microgravity setup

An experimental setup dedicated to experiments in parabolic flights was designed and built at LIPhy. Its performances allowed to run experiments on the aggregation of red blood cells in flow under experimental conditions that are so special to microgravity.

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14 November 2017

Super-resolution photoacoustic imaging

Will in vivo optical imaging of deep tissues be possible soon with high resolution? To make a deep optical image through turbid media such as biological tissues, photoacoustic imaging is a promising and rapidly developing technique. However, if the resolution allowed by this technique at depth in tissue is much better than that of optical microscopy methods, it nevertheless remains limited by the acoustic diffraction. Two experimental approaches inspired by optical super-resolution methods have just been implemented to push back the resolution limits of photoacoustic imaging.

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