Valliappan Kannappan

Thalidomide tragedy: the story and lessons …

In the 1940s and early 1950s, pregnant women throughout the world who experienced morning sickness and other anxieties associated with the first term of pregnancy were given barbiturate sedatives for relief. The issue with these barbiturates, like most sedatives, was the fact that they were highly toxic in large doses. In 1957, Chemie Grunenthal of …

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 Separating mirrored molecules  

In nature, most chiral molecules only appear in one specific enantiomeric form. [Read more @ the blog – “The handed world“, https://chiralpedia.com/blog/the-handed-world/]. Moreover, the handedness of the enantiomer can have a powerful effect on how that molecule behaves.  The chiral difference between two molecules often plays a huge role in pharmacology and physiology, even though …

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