Wood microfluidic engineering: development of highly stable polymer nanocomposite electrochemical nitrate sensor
AssigneeUniversity of Maryland, Baltimore County
InventorsGovind Rao, Sanjeev Kumar, Venkatesh Srinivasan, Preety Ahuja, Revati Kadolkar
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Abstract
A biosustainable wood-based microfluidic cassette having an impedimetric nitrate sensor for nitrate monitoring of water samples, wherein the nitrate sensor employs a nanocomposite having nitrate-binding metal ion complexes incorporated in and/or on polyaniline/carbon nanostructure. The nitrate sensor demonstrates good specificity to nitrate, reproducibility, a wide temperature range operability, and measurement equivalency to commercial nitrate sensors.
Claims20
A nanocomposite comprising nitrate-binding metal ion complexes incorporated in and/or on a polyaniline/carbon (Pani/C) nanostructure.
An apparatus for detecting nitrate (NO3−) ions in a water sample, said apparatus comprising:
- a microfluidic cassette comprising:
- a microwell having an inlet and an outlet for introduction of the water sample to the microwell and removal of same therefrom;
- a first bore that accommodates a working electrode such that the working electrode is in contact with the contents of the microwell;
- and
- a second bore that accommodates a reference electrode and a counter electrode, wherein the reference electrode and the counter electrode are in contact with the contents of the microwell and in proximity to the working electrode.
Dependencies are inferred from the claim text.