Page 68 - Technology Compendium

CSIR-IMMT/MCH - 07

Development of Electronic Read-Out Prototype of Chemo sensing for Detection of Metal Ions

Advantages / Salient Technical Features Environmental Considerations (if any)
• Significant improvement over existing technology • Environmentally viable with non-evasive
Salient features of chemosensors in metal ion detection technique
through electronic readout:
• Selectivity: Mercury ion Major Raw Materials to be Utilized
• Sensitivity: LOD = 0.08 mM of Hg(II) ion Reproducibility • Organic photochromic materials, Electronic
(at the same concentration): Error in signal (voltage) circuitry, light source, Optical filter,
with Hg(II) <3% Photodiode, Analogue to digital converter
• Reversibility: Retained (being chemically manifested)
• Repetitive operation up to 5 cycles Rate of Spiro-ring IPR Status / Details (India/Abroad)
opening: 0.007 s-1 • The prototype is yet to be patented.
• Response time of detection: Retained (<1 min)
Application/Uses
Problem being addressed • Assessment in drinking water quality Mon-
• Design and synthesis of molecular probes for targeted itoring toxic effluent level in waste water
metal ions exploiting host-guest Quality assessment of organic solvents
• Chemistry. Colorant responses of those probes upon
interaction with metal ions. Scale of Development
• Optimization of sensing protocol: selectivity, • Prototype development (Current TRL Level :
sensitivity, reversibility, reproducibility, faster 04)
response time.
• In-situ validation of such sensors in real media such Commercialization Status
as industrial effluents and physiological conditions. • NA
• Design of digital image/electronic mapping systems
for calibration of photo physical signals output Techno-economics
• Electronic circuit design and embedded coding for • NA
electronic display
• Assembly of sensing set-up and calibration of Technology Package
concentration versus intensity • NA
• Fabrication of casing and prototype/product testing.

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