Results 61 to 70 of about 17,118 (247)

The two-photon reversible reaction of the bistable jumping spider rhodopsin-1 [PDF]

open access: yes, 2019
Bistable opsins are photopigments expressed in both invertebrates and vertebrates. These light-sensitive G-protein-coupled receptors undergo a reversible reaction upon illumination.
Deupi, Xavier   +7 more
core   +1 more source

Optogenetics: Background, Methodological Advances and Potential Applications for Cardiovascular Research and Medicine [PDF]

open access: yes, 2020
Optogenetics is an elegant approach of precisely controlling and monitoring the biological functions of a cell, group of cells, tissues, or organs with high temporal and spatial resolution by using optical system and genetic engineering technologies. The
Joshi, Jyotsna   +2 more
core   +1 more source

Nanomaterial‐Based Muscle Cell/Neural Tissue Biohybrid Robots: From Actuation to Biomedical Applications

open access: yesAdvanced Robotics Research, EarlyView.
Muscle cell‐based biohybrid robot using nanomaterials for function enhancement and neural function for biomedical applications. Biohybrid robotics, an emerging field combining biological tissues with artificial systems, has made significant progress in developing various biohybrid constructs, including muscle‐cell‐driven biorobots and microbots.
Minkyu Shin   +4 more
wiley   +1 more source

Color-tuned Channelrhodopsins for Multiwavelength Optogenetics [PDF]

open access: yesJournal of Biological Chemistry, 2012
Channelrhodopsin-2 is a light-gated ion channel and a major tool of optogenetics. It is used to control neuronal activity via blue light. Here we describe the construction of color-tuned high efficiency channelrhodopsins (ChRs), based on chimeras of Chlamydomonas channelrhodopsin-1 and Volvox channelrhodopsin-1.
Matthias, Prigge   +6 more
openaire   +2 more sources

Novel Cerebello-Amygdala Connections Provide Missing Link Between Cerebellum and Limbic System

open access: yesFrontiers in Systems Neuroscience, 2022
The cerebellum is emerging as a powerful regulator of cognitive and affective processing and memory in both humans and animals and has been implicated in affective disorders. How the cerebellum supports affective function remains poorly understood.
Se Jung Jung   +13 more
doaj   +1 more source

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

open access: yesAdvanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon   +10 more
wiley   +1 more source

Three-dimensional scanless holographic optogenetics with temporal focusing (3D-SHOT). [PDF]

open access: yes, 2017
Optical methods capable of manipulating neural activity with cellular resolution and millisecond precision in three dimensions will accelerate the pace of neuroscience research. Existing approaches for targeting individual neurons, however, fall short of
Adesnik, Hillel   +5 more
core   +2 more sources

Behavior‐ and Cell Type‐Specific Cortico‐Striatal Decoupling in a Parkinson's Disease‐Like Mouse Model

open access: yesAdvanced Science, EarlyView.
Utilizing dual‐site fiber photometry, this study examines cortico‐striatal coupling with cell type resolution, identifying behavior‐ and cell type‐specific cortico striatal decoupling and its dopamine‐dependent mechanism in a Parkinson's disease mouse model.
Xu‐Ran Yao   +4 more
wiley   +1 more source

Channelrhodopsin-2 is a leaky proton pump [PDF]

open access: yesProceedings of the National Academy of Sciences, 2009
Since its discovery, the light-gated cation channel Channelrhodopsin-2 (ChR2) has proven to be a long-sought tool for the noninvasive, light-activated control of neural cells in culture and in living animals. Although ChR2 is widely used in neurobiological applications, little is known about its molecular mechanism.
Feldbauer, K.   +5 more
openaire   +3 more sources

Optogenetic control of genetically-targeted pyramidal neuron activity in prefrontal cortex [PDF]

open access: yes, 2012
A salient feature of prefrontal cortex organization is the vast diversity of cell types that support the temporal integration of events required for sculpting future responses. A major obstacle in understanding the
Donald Cooper   +6 more
core   +4 more sources

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