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A non-invasive intracellular 'thermometer' with fluorescent proteins has been created
Date:5/23/2012

A team from the Institute of Photonic Sciences (ICFO) has developed a technique to measure internal cell temperatures without altering their metabolism. This finding could be useful when distinguishing healthy cells from cancerous ones, as well as learning more about cellular processes.

Temperature controls many of the cell's life processes, such as splitting and metabolism. A European research team led by the Institute of Photonic Sciences (ICFO), which has the Severo Ochoa mark of excellence, has published a non-invasive method that offers quicker, more precise data from measuring intracellular heat from green fluorescent proteins (GFP) in the journal 'Nano Letters'.

"A unique characteristic of our method is that it does not alter any cellular process" Romain Quidant, ICFO researcher and study coordinator, explains to SINC. Unlike other techniques, this method does not stress or alter the behaviour of the cell as it does not need to be inserted into any molecules or any other synthetic nano-object that is sensitive to the internal temperature.

One of the most promising outcomes is a better understanding of cellular processes, such as those involved in metastasis. Furthermore, the possibility of obtaining information about intracellular temperature could be used to "differentiate normal cells from cancerous ones in a quick, non-invasive manner" Sebastian Thompson Parga, ICFO researcher and co-author of the project.

Information deduced from temperature

From intracellular temperature, we can deduce how the energy used by the body in the uncontrolled spreading of cancer cells flows.

In this interdisciplinary study, biology uses physical measurements of energy transmission to study processes such as gene expression, metabolism and cell splitting.

The technique used is known by the name of 'fluorescence polarisation anisotropy' (FPA) as it allows the difference in polarization between light that fluorescent mol
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Contact: SINC
info@agenciasinc.es
34-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

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