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Rodrigo Gómez Martínez, graduado de nuestro programa de Maestría, publicó junto con un grupo de investigadores del Instituto de Microelectrónica de Barcelona (IMB-CNM) y del Centro de Investigaciones Biológicas (CIB), pertenecientes al CSIC de España, publicó su trabajo titulado "Silicon chips detect intracellular pressure changes in living cells", en la revista Nature Nanotecnology. Rodrigo, dará una charla titulada "Micro Nano devices for life sciences" el día Miercoles 9 de Octubre, en el Salón SD703 de 11:30am a 12 45pm. Abstract The ability to measure pressure changes inside different components of a living cell is important, because it offers an alternative way to study fundamental processes that involve cell deformation. Most current techniques such as pipette aspiration, optical interferometry or external pressure probes use either indirect measurement methods or approaches that can damage the cell membrane. Here we show that a silicon chip small enough to be internalized into a living cell can be used to detect pressure changes inside the cell. The chip, which consists of two membranes separated by a vacuum gap to form a Fabry–Pérot resonator, detects pressure changes that can be quantified from the intensity of the reflected light. Using this chip, we show that extracellular hydrostatic pressure is transmitted into HeLa cells and that these cells can endure hypo-osmotic stress without significantly increasing their intracellular hydrostatic pressure.
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