Karolinska Institute awards 2026 Nobel Prize in Medicine for optogenetics nerve cell toggling
GS3Economy · S&T · Environment · Security· Biotechnology & health research· Prelims·
Biotechnology and Neuroscience: A key development in neural manipulation and medical science for GS3.
Why in news
The Karolinska Institute awarded the 2026 Nobel Prize in Medicine to Karl Deisseroth, Peter Hegemann, and Georg Nagel for their pioneering work on optogenetics to toggle nerve cells using light.
Background
The prize recognizes the development of optogenetics, a technique allowing the control of nerve cells via light. Peter Hegemann studied Chlamydomonas algae, while Georg Nagel verified channelrhodopsin-1 and channelrhodopsin-2 genes.
Facts for Prelims
- S&TOptogenetics: A technique used to toggle or control the activity of nerve cells using light.
- S&TChlamydomonas: A genus of green algae studied by Peter Hegemann in the context of optogenetics.
- S&TChannelrhodopsin-1 and Channelrhodopsin-2: Genes verified by Georg Nagel for use in optogenetic research.
- PostKarl Deisseroth: Researcher at Stanford University who utilized optogenetics in 2005 to study brain functions.
Prelims practice question
Which genus of green algae was studied by Peter Hegemann in the context of optogenetics?
- (a)Chlamydomonas
- (b)Spirogyra
- (c)Volvox
- (d)Anabaena
Show answer
Answer: (a) Chlamydomonas — The note specifies that Peter Hegemann studied Chlamydomonas algae.
For Mains
Q. Discuss the potential of optogenetics in revolutionizing neurological treatments and the ethical considerations surrounding direct neural manipulation.
Dimensions to cover in your answer
- Neuro-ethical dilemma: Balancing therapeutic intervention in brain function with cognitive liberty
- Translational gap: Challenges in moving from laboratory-scale optogenetic toggling to clinical human applications
Keywords: Optogenetics · Neuroscience · Biotechnology · Neural Manipulation · Gene Verification
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