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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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10 November 2017

Thermodynamics of lipid multilamellar vesicles in presence of sterols at high hydrostatic pressure

The measurement of thermodynamic variables in the presence of cholesterol in membranes is crucial to understanding the physics and mechanics that underlie the function of biomembranes. The present study proposes to combine two techniques to access the thermodynamic variables and thus allow a better understanding of the dynamics of biomembranes at the molecular level.

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4 September 2017

Analog photonic fractional Fourier transformation

Fractional Fourier transformation (FrFT) can be seen as the generalization of the Fourier transform (FT) along any direction intermediate between the direct and the Fourier-dual domain. We have (...)

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