HANNOVER MESSE 2018, 23 - 27 April
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Switchable contrast agents in medicine

Function by Switching

Christian-Albrechts-Universität zu Kiel

Exhibitor details
Logo Switchable contrast agents in medicine

Exhibition stand

Hall 2, Stand C07
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Product description

In the Collaborative Research Center (CRC) 677 at Kiel University, the development and use of switchable molecules are being researched. These are used, for example, as switchable contrast agents in medical diagnostics. Injected in the body they are activated and deactivated by light through of a catheter or throught the skin.

This way the diagnostics during an operation for example of stroke patients are improved and longer operating times are possible. Chemists will be demonstrating the processes in the switchable molecules, among other things, at the Kiel University booth.

A large installation at the booth shows the function of switchable molecules: the containers mounted there are filled with colourless solutions containing spiropyrans - photochromic molecules which can be changed by exposure to light. In the demonstration, the dissolved molecules are briefly illuminated with UV-light, causing their structure to change. Through colour changes in the solution, this is even visible to the naked eye.

After about two minutes, the molecules switch back to their initial state, and the solution becomes colourless again. The mushroom-like structures in the glass containers are mainly created due to thermal effects in the solvent.

Development status
Under development

Market introduction

Degree of documentation
Very well documented

Market orientation
Niche market

Product website


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