Hello guys,
I am new to this subject. I am using Arduino nano and TCRT5000 IR sensor. Is there any possibility to calculate glucose concentration and optical path using this kind of sensor.
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This would not be a good project for a beginner in Arduino, and it may not even be possible to use the TCRT5000 for that purpose.
Arduino is not recommended for human health or safety related applications, but there might be approved glucose sensors whose output could be monitored by Arduino.
What research have you done? Why did you choose that sensor?
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In my country, I have only find these sensors. KY-039, IR sensors, TCRT5000. This is for my final year project. I have read many research papers but I cannot find a suitable sensor. I just need to prove that using sensors there is a possibility to measure blood glucose. Can we use KY0039 sensor for this?
Please post links to theory articles describing the blood glucose measurement technique that you wish to use.
There are very simple devices for noninvasive measurements of blood oxygen saturation, based on ratiometric reflection/transmission measurements of red and IR LED light. One example
There is no method I am aware of for monitoring blood glucose without some invasive techniques. The monitors require access to interstitial fluid or blood in general
I am using this document. they have implemented same but with NIR,
That paper looks like a hoax to me, and I doubt that many scientists or medical researchers would believe it.
The theoretical justification for the method (light scattering by glucose) is complete nonsense, and the purported experimental evidence on human subjects is just a joke.
The exact same technique is used all over the world to measure blood oxygen saturation, which measures the dramatic change of hemoglobin absorbance with oxygen content, so how would you distinguish between the two variables?
However, it would be an EXCELLENT learning experience and final project to analyze the paper, reproduce the apparatus, and test whether it can actually report blood glucose levels. I predict that it won't.
Here's a design from the "Journal of Medical Signals and Sensors" that uses an ATmega32 processor. It could probably be adapted to the ATmega328p processor on an Arduino UNO or Nano.
I'm a little worried about the diagrams which really put the 'scatter' in 'scatter plot'. I'm surprised they could find a correlation in that mess.
Atmega32, only available in 44 TQFP now.
The 40 pin DIP is more like an Atmega644x or Atmega1284P
I stand corrected, the '32 is available in a DIP, just needed a complete part number to find it.
https://www.digikey.com/products/en?keywords=atmega32-16pu
'1284P with more memory and capability is less expensive tho.
I'm a little worried about the diagrams
They worry me too.
The "theory" section on light scattering even uses the same bogus diagram as the IEEE paper I discussed.
Both contributions look phony to me. At best they are wishful thinking.
jremington:
They worry me too.The "theory" section on light scattering even uses the same bogus diagram as the IEEE paper I discussed.
Both contributions look phony to me. At best they are wishful thinking.
About a year ago I participated in a study in Worcester. Mass (Fitchburg State University). I never found out who was underwriting the testing, but they had a monitor that clipped to my earlobe. I did a finger-stick every hour while the technician made some measurements on the earlobe probe. (Consuming glucose tablets between readings). I peeked at his notes and it appeared that the probe was close to my finger-stick measurement., so it's not bunk.
All I can say is that the commercially available monitor "patches" contain a small needle. I have some contact with "loopers". 
If there was a non-invasive alternative that was sufficiently reliable, it would necessarily have been deployed for some years already. 
We seem to be getting into the conspiracy theories here ...
Years ago I was working on such think. Optical method was developed by others but was not reliable, they used 6 different light IR waves.....