| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1786314 | Current Applied Physics | 2014 | 4 Pages |
•Very small amount of glucose concentration up to sub-millimolar range was detected.•The local Joule heating changed the electrical conductivity of glucose solution.•The solution with lower concentration showed further conductivity enhancement.•The concentration was distinguished based on the electrical conductivity variation.
Label-free detection of glucose molar concentration was carefully studied with a device which was designed to modulate temperature in a local area by Joule heating from room temperature to human body temperature. Very small amount of glucose concentration up to sub-millimolar range was detected based on the glucose concentration dependent electrical resistance change with the temperature modulation since it allowed more electrical conductivity enhancement for lower glucose concentration.
