Week2: Nanotechnology improves medical imaging rapidly

Watching the complex processes in a living cell, it is extremely difficult to observe the tiny change because the resolution is low. But new research makes it possible to scruinize activities that occur over hours or even days inside cells, potentially solving many of the mysteries associated with molecular-scale events occurring in these tiny living things.

ImageHuman red blood cells

A joint research team, working at the National Institute of Standards and Technology (NIST) and the National Institute of Allergy and Infectious Diseases (NIAID), has discovered a method of using nanoparticles to illuminate the cellular interior to reveal these slow processes. Nanoparticles, thousands of times smaller than a cell, have a variety of applications. One type of nanoparticle called a quantum dot glows when exposed to light. These semiconductor particles can be coated with organic materials, which are tailored to be attracted to specific proteins within the part of a cell a scientist wishes to examine.

Overall, nanotechnology can potentially improve the medical imaging a lot. It leads the researchers to find more mysterious thing inside cell. And even observe every tiny changes of a cell over a short period of time thus enhance the medical judgement.

Reference: http://www.azonano.com/news.aspx?newsID=14714


2 thoughts on “Week2: Nanotechnology improves medical imaging rapidly

  1. Reading signals from quantum dots would be easier if the dots could fluoresce without requiring an external source of excitation light. Not only does external light damage cells and tissues, but naturally occurring fluorescing molecules also respond to the blue-to-green light typically used to excite quantum dots, producing background noise.

  2. Apart from improving medical imaging, the advantages of Nanotechnology are also worth to know 🙂

    Nanotechnology can actually revolutionize a lot of electronic products, procedures, and applications. The areas that benefit from the continued development of nanotechnology when it comes to electronic products include nano transistors, nano diodes, OLED, plasma displays, quantum computers, and many more. 🙂

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