Hi Sabari,

You can try electrical bio-impedance approach for snapshot/continuous non-invasive blood glucose level monitoring, by applying a low magnitude current into human body with a measurement of the induced voltage response across it, which gives an indirect indication of overall bio-impedance. Bio-impedance approach has been used to examine the correlation found between cardiovascular parameters, the blood’s electrical and dielectric parameters, and blood glucose levels. It is evident from the experiment that, the bio-impedance value increases with the increase of glucose concentration in blood.

http://www.globes.co.il/serveen/globes/docview.asp?did=1000640571

https://www.journals.uio.no/index.php/bioimpedance/article/view/657

http://www.mdwatch.co.il/?page_id=108

You could try NIR based methods.

You could refer this article as well

Dear Sabari,

There are various non-invasive techniques are being in practice but all are under research, the methodology based on the skin surface temperature of the human body which was measured through a truly non-contact Infrared Thermal Camera could be found from the following links

i) www.ncbi.nlm.nih.gov/pubmed/22411072

ii) www.ncbi.nlm.nih.gov/pubmed/23274424‎

Regards,

S.Sivanandam

All the above given methodology and links are great but as per my view everything other blood drop method are under research. Results are not so much accurate. Even as per my experience results of lab tested blood sugar(chemical method) are always more accurate than device tested (electronic) results.

Hence its a matter of discussion, does these methods mentioned above are really helpful clinically.

Dear Chetan,

Not only the non-invasive techniques are under research, even the present standard biochemical marker was being under scanner as it indicates with delayed onset of the disease and the researchers seek an alternate and accurate biomarker for the timely onset indication.

Further, the above mentioned non-invasive methods were claim to be adjunct tool unless it has been proved either equivalent to the standard marker or better than the traditional method.

Regards,

S.Sivanandam