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Updated: Oct 6, 2025

In vivo Optogenetic Stimulation of the Rodent Central Nervous System

In vivo Optogenetic Stimulation of the Rodent Central Nervous System

Published on: January 15, 2015

Red Light Optogenetics in Neuroscience.

Kimmo Lehtinen¹, Miriam S Nokia^2,3, Heikki Takala¹

¹Department of Biological and Environmental Science, Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland.

Frontiers in Cellular Neuroscience

|January 20, 2022

Summary

This summary is machine-generated.

Red light optogenetics offers superior depth penetration for neuroscience research, overcoming limitations of shorter wavelengths. This review explores red light tools for advanced in vivo brain studies.

Keywords:

brain near-infrared neuron neuroscience opsin optogenetics phytochrome

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Area of Science:

Neuroscience
Optogenetics
Biotechnology

Background:

Optogenetics enables precise control of cellular functions using light-activated proteins.
Traditional optogenetic tools often use blue/green light, limiting in vivo brain penetration.
Rodent brains, commonly used in neuroscience, necessitate tools with greater tissue penetration.

Purpose of the Study:

To review the advantages of red light for in vivo optogenetic studies in neuroscience.
To provide an overview of red light-activated optogenetic proteins and systems.
To highlight tools and applications facilitating red light optogenetics.

Main Methods:

Literature review focusing on red light optogenetic tools.
Analysis of optogenetic protein functionalities and systems.
Examination of in vivo applications in neuroscience.

Main Results:

Red light offers enhanced penetration depth in biological tissues compared to shorter wavelengths.
Various red light-activated optogenetic tools have been developed for neuroscience.
New developments are expanding the utility of red light optogenetics.

Conclusions:

Red light optogenetics significantly improves in vivo neuroscience research capabilities.
The reviewed tools and applications offer advanced methods for brain studies.
Further development in red light optogenetics promises broader applications.