AIST Develops Innovative Fluorescent Quantum Dot.Tokyo, Japan, Feb 20, 2006 - (JCN) - The National Institute of Advanced Industrial Science (AIST) announced on February 16 that it has developed a fluorescent quantum dot with superior properties. The On-Site Sensing and Diagnosis Research Laboratory, one of the AIST entities, has synthesized a water-soluble and highly-luminescent quantum dot. Made of cadmium selenide (CdSe), the quantum dot is 3-6nm in diameter and excels in size distribution and photochemical photochemical in laser treatment, the laser light is absorbed and converted into chemical energy. stability. Further, the lab has created a hybrid material by combining the quantum dot with protein avidin av·i·din n. A protein, found in uncooked egg white, that binds to and inactivates biotin and which, when present in abundance, can result in a deficiency of biotin. and biomolecule biomolecule /bio·mol·e·cule/ (-mol´e-kul) a molecule produced by living cells, e.g., a protein, carbohydrate, lipid, or nucleic acid. biomolecule a molecule produced by living cells, e.g. biotin biotin: see vitamin; coenzyme. biotin Organic compound, part of the vitamin B complex, essential for growth and well-being in animals and some microorganisms. . Used with biotin-labeled antibodies in the immunoblot analyses, the new hybrid material can detect proteins with high sensitivity. Based on these finding, AIST aims to develop an electrophoretic chip that can identify natural proteins. Also, it plans to devise a surface processing technique for the quantum dot and employ it in the evaluation process of food manufacturing. Details of the research are published in US scientific magazines Journal of American Chemistry Society and Analytical Chemistry. In addition, AIST will present the details at nanotech 2006: International Nanotechnology Exhibition & Conference, to be held at the Tokyo Big Sight Tokyo Big Sight (東京ビッグサイト from February 21 to 23. Copyright [c] 2006 Japan Corporate News Network. All rights reserved. |
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