Tumours hightlight technique ...

The group of researchers of Howard Hughes's Medical institute and the Californian university in San Diego (they are the USA), headed by Roger Tsenom (Roger Tsien), received the Nobel Prize in chemistry of 2008 for working out of ways of synthesising of green fluorescent fiber, has presented a new "hightlight" technique tumours in an organism.

At an oncotomy even the most skilled surgeon can pass some part of the amazed tissue, and after a while the patient it is necessary to operate repeatedly. Authors of work have tried to simplify a problem of the doctor, having framed special gauges with magnetic and fluorescent marks with use nanoparticles in the size less than 100 nanometers and synthetic molecules, so-called getting peptides (cell penetrating peptides). At introduction of such gauges of a tumour are allocated in the pictures made on technology of a magnitno-resonant tomography, and start to "be shone" on an operating table.

In a series of experiments on mice with the implanted tumours scientists have shown detection possibility the clumps of cancer cells marked with fluorescing gauges in the sizes to 200 microns, many of which were under healthy tissues and for certain would remain not noticed. As it is informed, after the operation spent with nanoparticles use, in an organism remained on the average on 90 % of less cancer cells, than usually, and entered to mice nanoparticles achieved the object - tumours - in 93 % of cases.

According to Mr. Tsena, similar fluorescent gauges allow to observe cancer formations of various types and should bring the maximum advantage in the robotised surgery compelling the expert to rely exclusively on the sight.

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