Difference between revisions of "Micro-electro-physiology @ HAIP, Ljubljana"

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[http://www.youtube.com/watch?v=gxSBnp-3Lnc Video of extracellular measurement of action potential of the venus flytrap]
 
[http://www.youtube.com/watch?v=gxSBnp-3Lnc Video of extracellular measurement of action potential of the venus flytrap]
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=== On Measuring ===
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Using the arduino we can measure Analog Voltages using the 6 Inputs ADC. If the signals are to low, such as µV in the example of potentials in plants, we need to amplify the signal and make sure we do not have too much noise or other garbage in our signals. [http://focus.ti.com/docs/prod/folders/print/ina118.html INA118] is a high end instrumental amplifier, with low noise. But maybe cheaper amp might do the trick aswell, such as the [http://www.national.com/mpf/LM/LM386.html LM386]
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If we want to measure more inputs we can multiplex them. meaning we measure one input at the time using a chip (4051), which got 8 inputs which are then routed to one single input on the arduino.
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[http://www.arduino.cc/playground/Learning/4051 read more about using the 4051 multiplexer/demultiplexer]
  
 
== Participants ==
 
== Participants ==

Revision as of 12:01, 24 November 2010

Background Info

Electrochemistry of Plant Life

Electrochemistry Encyclopedia

Video of extracellular measurement of action potential of the venus flytrap

On Measuring

Using the arduino we can measure Analog Voltages using the 6 Inputs ADC. If the signals are to low, such as µV in the example of potentials in plants, we need to amplify the signal and make sure we do not have too much noise or other garbage in our signals. INA118 is a high end instrumental amplifier, with low noise. But maybe cheaper amp might do the trick aswell, such as the LM386

If we want to measure more inputs we can multiplex them. meaning we measure one input at the time using a chip (4051), which got 8 inputs which are then routed to one single input on the arduino. read more about using the 4051 multiplexer/demultiplexer

Participants

rough schedule

Material for the Book

Interesting Links

http://books.google.com/books?id=6a1_Gw8Tt10C&lpg=PR2&ots=AQKOZEm7Fn&dq=plant%20electrophysiology&pg=PR7#v=onepage&q&f=false

http://ediacaran.mech.northwestern.edu/neuromech/index.php/Main_Page

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TD1-4NC5T7P-2&_user=10&_coverDate=04%2F30%2F2007&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=ea73d908f93817a392f5f12ddebc6f72&searchtype=a


Preparations

Material to bring

Tools we need

Last minute orders