X-ray meter new role, a close-up shot virus cells

X-ray fluoroscopical instrument and gastrointestinal X-ray machine is used as X-ray radiology medical equipment, its role in addition to fracture of diagnosis outside, still can let scientists now shooting close-up of the virus, and the virus image no pollution. The results will help doctors will soon developed a new type of disease-resistant poison.

Through the powerful X-ray instrument X-ray concentrated illuminate a herpes virus, at no dyeing, China Beijing university scientists filmed the virus first high-definition images. The technology is the so-called X-ray diffraction microscope, can promote the development of new drugs to treat different diseases. A similar technology is a kind of X-ray crystallization method, the technology has been used for many years, used for testing many important protein structure, including the DNA double helix. In the study of Beijing university, zhang said: "this is a very important technology, many Nobel Prize are so technology and get."

X-ray crystallization method deficiency is only used in the crystal, and DNA and some protein after enough repeat can become crystalline, but other proteins, especially found in the membranes of protein can't formed crystals, because they are not enough soft and changeful, of course, the whole cells also can't the crystals. M Europe say: "like a human cells, no two personal cell is strictly the same." M Europe and his colleagues through the use of the world's most powerful X-ray instrument broke the limitations. The X-ray instrument at Japan's SPring-8 synchrotron.

Scientists chose herpes virus because of its relative diameter for 100-200 nanometers, and it also has major medical value. The process is: they will be the virus into the synchrotron, with X-ray aimed at this after irradiation samples. And the opposite cameras can detect the other side of the light changes a little release, again through the computer software to take pictures of the X-ray medley together, form the whole image of herpes virus. M the team that made the first of the virus without dyeing a single image, which is more than the other technology for image of small 3 orders of magnitude. Other cells and virus image is through the dyeing and sliced get, then put the pictures medley together, formed the whole image, but the process seriously undermined the important life information.

Article : From Perlong medical (http://www.pl999.net/)
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