Pachaiyappa's College

14/06/2023

https://youtu.be/pyqCxrchkms

02/09/2021

In the 19th century chemists noticed that certain chemical reactions seemed to be caused by substances that remained unchanged in the process.

In the 1880s Wilhelm Ostwald studied the speeds of numerous chemical reactions, including reactions occurring in the presence of acids and bases. In 1894 he revealed what happens: a substance - a catalyst - can speed up the rate of a reaction, but is not included in its end-products. It does this by lowering the reaction's activation energy - the energy needed to kick-off a reaction (see picture). This understanding shed great light on chemical reactions occurring in both industrial processes and living organisms and led to Ostwald receiving the 1909 Nobel Prize in Chemistry.

More about Ostwald: https://bit.ly/318NaoK

22/02/2021

"It was like a new world opened to me, the world of science, which I was at last permitted to know in all liberty."

Marie Skłodowska Curie’s relentless resolve and insatiable curiosity made her an icon in the world of modern science. Indefatigable despite a career of physically demanding and ultimately fatal work, she discovered polonium and radium, championed the use of radiation in medicine and fundamentally changed our understanding of radioactivity.

Learn more about her life: https://bit.ly/2D8aYxT

18/01/2021

Chemistry Vs Covid19

31/12/2020

 students

07/10/2020

BREAKING NEWS
The Royal Swedish Academy of Sciences has decided to award the 2020 Nobel Prize in Chemistry to Emmanuelle Charpentier and Jennifer A. Doudna “for the development of a method for genome editing.”

Emmanuelle Charpentier and Jennifer A. Doudna have discovered one of gene technology’s sharpest tools: the CRISPR/Cas9 genetic scissors. Using these, researchers can change the DNA of animals, plants and microorganisms with extremely high precision. This technology has had a revolutionary impact on the life sciences, is contributing to new cancer therapies and may make the dream of curing inherited diseases come true.

Researchers need to modify genes in cells if they are to find out about life’s inner workings. This used to be time-consuming, difficult and sometimes impossible work. Using the CRISPR/Cas9 genetic scissors, it is now possible to change the code of life over the course of a few weeks.

Since Charpentier and Doudna discovered the CRISPR/Cas9 genetic scissors in 2012 their use has exploded. This tool has contributed to many important discoveries in basic research, and plant researchers have been able to develop crops that withstand mould, pests and drought. In medicine, clinical trials of new cancer therapies are underway, and the dream of being able to cure inherited diseases is about to come true. These genetic scissors have taken the life sciences into a new epoch and, in many ways, are bringing the greatest benefit to humankind.

Press release: https://bit.ly/2Hzxp4h
Popular information: https://bit.ly/3cNgeHJ
Advanced information: https://bit.ly/2HwL3oE

28/02/2020

Today, celebrates the discovery of spectroscopy! in 1928, C.V. Raman discovered the Raman effect, for which we he was awarded the in Physics in 1930. In India, Feb 28th is celebrated as to commemorate his discovery!

Join in celebrating !

28/01/2020

1year B.SC chemistry student

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27/01/2020

Fulbright-Nehru Specialist Program