It is very accurate to divide shape geometry "

It is very accurate to divide shape geometry " Discern " Cancer cell
It is reported though the scientists have known for a long time cancer cell and health cell have greater differences on the appearance, but because lack corresponding theory and recognition standard, present cancer measures and still takes biochemical method as the core. Organizing the report on July 7 of network according to the American physicist, researcher of the university American Clarkson finds, compared with health cell, the cancer cell possesses the characteristics of more prominent points of shape on the appearance. The preliminary experiment reveals, the detection taking this as basis has obtained extremely high accuracy. The new law is expected to make the not precision of the invading cancer detection method of the tradition promoted by a wide margin. Relevant thesis publish in at " whether physics comment the bulletin ".

It is a concept opposite to traditional geometry to divide the shape, can interpret it as a kind of coarse and scrappy geometirc shape. It is formed by a large number of irregular curves, but there is meticulous structure on any small yardstick, if divide it into different parts, no matter large or small, shapes of every part are the same as whole, such a figure is known as too " Since similar " Figure. Take snow flake as examples, under the microscope, no matter the yardstick of 1 millimetre, 1/10 millimetres or 1/1000 millimetres, pattern and shape on the edge of snow flake are nearly the same. Say position of cluster of galaxies, or the sinuous river in ground under sky in being large, or a leaf on the tree, all divide shape characteristics. And for human body, according to a period of longer time, breathe the rhythm with the heartbeat and divide shape characteristics.

Noticing this, researcher of the university American Clarkson puts forward and leaves the imagination of the cancer cell through dividing into the geometirc knowledge of the shape. Igor and Sokoloff and colleague responsible for the research utilize the atom strength microscope, in 1 nanometer ' 1/1 million millimetres) Precision at compare with cell and the appearances of cancer cell for health at cervix uteries human to be taken from. Different from the past to only get the two-dimentional structural picture of cells, new research adopts the brand-new method to carry on research to the 3-D view of cells. Measure the result to reveal, the cancer cell possesses the characteristics of prominent points of shape on the appearance, but health cells are not obvious.

Sokoloff say at present in at cervical cancer measure, the intersection of bar and slide, liquid the intersection of base and cytologic detection,etc. method effective and person who invade for instance, but accuracy is relatively bad, especially earlier bar slide law, must often produce some equivocal conclusions. And use the new picture detection method, the result checked to 300 cell samples coming from 12 patients shows, its accuracy is close to 100%. He affirms in view of the above, on the basis of the physical method, will reach even exceed the detection ability of the traditional biochemical detection method at the unicellular level. The next step, Sokoloff's research group plans to expand and test the scale, by doing further verification to this technology. In addition they plan, divide the intersection of shape and characteristic into, launch research in canceration to the intersection of health and cell also.

Expert of biophysics of Princeton University and Robert Austin says, perhaps first step that similar research just linked the physics speciality of the cancer cell to biochemical characteristic, with the deepening studying, it will accelerate scientist's understanding cancer cell, will help people to obtain greater initiative in defeating cancer finally. (Wang XiaoLong)

It is very accurate to divide shape geometry " Discern " Cancer cell