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 the genes channelrhodopsin-1 and channelrhodopsin-2.
Facts for Prelims
- S&TOptogenetics: A technique used to toggle or control the activity of nerve cells using light.
- S&TChannelrhodopsin-1 and Channelrhodopsin-2: Genes verified by Georg Nagel for use in optogenetics.
- S&TChlamydomonas: A genus of green algae studied by Peter Hegemann in the context of optogenetics.
- PostKarl Deisseroth: Associated with Stanford University; used optogenetics in 2005 to study brain functions.
- BodyKarolinska Institute: The body responsible for awarding the Nobel Prize in Physiology or Medicine.
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 how advancements in optogenetics and neural engineering can revolutionize neurological treatments and the ethical implications of direct neural manipulation.
Dimensions to cover in your answer
- Ethical dilemma: Potential for cognitive enhancement and unauthorized neural interference
- Clinical application: Precision targeting of specific neural circuits for Parkinson's and epilepsy
- Regulatory gap: Lack of international frameworks governing human neural interface technologies
Keywords: Optogenetics · Neural Engineering · Biotechnology · Neuroscience · Gene Verification
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