Why is femtochemistry important for biology?
Femtochemistry is crucial for biology because life itself is a series of ultrafast molecular events. For example, vision begins when a photon strikes rhodopsin in your eye, triggering a bond isomerization in just 200 femtoseconds. Using our techniques, we can watch this process unfold, understanding how light energy is converted into a neural signal. Similarly, photosynthesis relies on ultrafast energy transfer between chlorophyll molecules, occurring in picoseconds. My group studied these systems, showing that the same principles of bond dynamics apply from simple gases to complex proteins. This interdisciplinary approach—what I call the unity of science—reveals that the dance of atoms is universal. It also has practical applications: designing better solar cells by mimicking natural light harvesting, or developing drugs that target fast enzymatic steps. Curiosity is the engine of discovery, and femtochemistry lets us explore the very fabric of life.
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