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Optogenetic Arrays / MWA

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Microwire arrays with integrated optical fibers (MicroProbes)
MicroProbes - Optogenetic Microwire Arrays / MWA
Description

 

With MicroProbes' novel and reliable products the photoactivation/photoinhibition of cells through an integrated optical fiber combined with multichannel arrays allow you to achieve neural electrophysiological recording of an extended brain area in parallel with photostimulation.

Designed for chronic experiments, the Microprobes Optogenetics Microwire Array (Opto-MWA) provides the optimum in flexibility and affordable alternative for the neuroscience community.

 

Features

 

Photoexcitation and -inhibition

blue light emission
photoexcitation

 

yellow light emission
photoinhibition

The small-scale but high-density arrays provide multichannel Single-Unit (SUA), Multi-Unit (MUA) and Field Potential (FP) data leading to consistent and high-quality results.

 

Standard Layouts

Layout I. (Top view)
Layout II. (Top view)
Layout III. (Top view)
Layout IV. (Top view)

Wire diameter 25 µm and 50 µm

A. Distance between wires 100 µm to 1 mm

B. Distance between wire to fiber optic 100 µm to 1 mm

C. Fiber Optic diameter 125 µm or 230 µm

 

 

References:

optogenetic photostimulation traces
Sensory-motor circuits and Optogenetics
Data provided (to MicroProbes) by Ilka Diester, Ernst Strüngmann Institute, Frankfurt (Main).

 

neuronal recording
Recording of an optically stimulated neuron expressing channel rhodopsin (CHR2) in the striatum of a mouse using a custom Opto Micro-Wire array. A. RASTER and PETH of striatal spikes generated using 1ms pulses of 473 nm blue laser light. B. Waveforms of spikes from A, plotted in relation to the onset and offset of the laser pulse. C. Spike fidelity is linearly correlated to laser output intensity.
Courtesy (to MicroProbes) of Mark O. West’s Lab at Rutgers University.

 

 

How to order:

MicroProbes
Please contact the manufacturer, MicroProbes directly for further specifications and ordering.  We would appreciate if you mention "Science Products" at any order or inquiry.

 

Online design form

Optogenetics MWA

 

 

 

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Array Comparison Chart

(PDF)