How to test a flexMEA

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How to test a flexMEA

Post  mcs on Wed Jun 11, 2008 2:48 am

Hello,
I am trying to make a test before to the culture to determine if my system based on FlexMEA acquires the signals that could be produced in the different channels.
So far I have verified that is able to produce stimuli verifying the conduction of current.
Somebody could contribute some suggestion to me?
Thank you very much,
Miguel

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Re: How to test a flexMEA

Post  mcs on Wed Jun 11, 2008 2:48 am

Hello Miguel,
would it maybe make sense to dip the MEA in a bath and
apply stimuli resembling spikes or field potentials to
the bath? A crude method, I know ...

Frank

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Re: How to test a flexMEA

Post  ISchneider on Tue Nov 02, 2010 10:24 pm

Dear Frank,

I recently tried to test a FlexMEA in a saline bath and encountered a puzzling behavior. After putting the MEA into the saline to check the baseline noise, I did not see the expected +/- flat signal although all channels should be short-circuited. Rather the system recorded highly regular waveshapes that strongly resemble a behavior I also encounter if I record data with an open preamplifier (no probe, electrode or MEA connected). I see this both on older and brand new FlexMEAs. With respect to the open preamps I was already in contact with your support and was told that an open preamp is in an undefined state and could produce virtually every waveform. However, I do not understand why this happens with a short-circuited FlexMEA connected.

All the best,
Ingmar

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Re: How to test a flexMEA

Post  shapata on Thu Apr 23, 2015 10:12 am

for a female socket that would connect to a ADPT-FM-32. I must confess that I'm a bit overwhelmed by the number, and variety of items that match my criteria.

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