DIY electrode slide for blood analysis

One of many different ones i have tried. Maybe try impedance spectroscopy slides later on.

Simple contact slide using adhesive copper tape. For this one i adhered a small foam ring to secure and seal the sample in the center ( using glue gun to form a circular bead is better as the glue does not seem to react if accidentally in contact). The intention was only to try AC and DC current at first. After thinking i realised that i could also push AC and DC through the slide using various freqeuncies.

I have recently hooked the PEMF machine upto slides in order to experiment using 4hz and 8hz square wave at around 13.86v. Simply 13.86v because i have not added an attenuator to the PEMF Mosfet output just yet. The power supply is a home built adjustable bench supply which allows voltage control from 1.8V upto 28V + and - rails. current limiting is done by resistors. The slide with 6 stage filtered water and blood tests a resistence of around 130k when probed. that is for 3 drops blood and several drops of water for now.

i am still refining the functionality and more precise measurements should be taken when done. Coating the copper that is in contact with tin solder lessens the amount of copper that can react within the sample. Better materials by far are available for contacts which will react less. Most of what i have seen so far could be recocgnised as structures reacting in the blood plasma itself. This method offers a visual supervison while performing electrical experiments, which was my intention.

Above: shows a used slide which seemed to form a tissue like structure which pulsated at 4 and 8 hz. )Unvackinated blood). The odd thing was that the pulsing which almost mimicked muscle spasms had absolutely no synchronicity to the applied freqeuncy. Im not sure what that means yet or if its even relevent, however that in it self is rather fascinating.

For now just an interesting ramble, but maybe enough to give others with the inclination to experiment just the same.

Help the citizen research by helping to provide equipment and supplies so we can go deeper.

I am using KO-FI right now and appreciate you clicking the link to go there and contribute.

Thank you every one !