Technologies

Engineering Sciences

Title:	Nano-geo Tracers for Understanding Groundwater Flow Dynamics and Contaminants Migration
Area:	Engineering Sciences, Chemical Sciences
Focus Area:	Groundwater Monitoring
Social Benefits:	The CQD's were normally synthesized through supercritical reactor process of organic salt of single carbon source, Citric Acid (CA) with the surface modifier polymer Poly sodium 4-styrene sulfonate (PSS). Attachment of PSS on CQD surface makes PSS-CQD powder easily dispersible in aqueous suspension. The citric acid served as the carbon source, while PSS provided stabilization, dispersion in water and control over the particle size.Carbon Quantum Dots are proven as nontoxic and very much environmental friendly the toxicity test was done at IAS-PSG college, Coimbatore, and found as nontoxic.
Developing Agency:	CSIR-National Geophysical Research Institute (NGRI), Telangana
Technology Readiness Index:	Proof of Concept
Source (more info) :	https://t.ly/l_sb

Brief Description

Description :

This technology works on the principle of fluorescence spectroscopy. Fluorescence occurs when a molecule absorbs light photons from the uv visible light spectrum, known as excitation, and then rapidly emits light photons as it returns to its ground state. Fluorimetry characterizes the relationship between absorbed and emitted photons at specified wavelengths. It is a precise quantitative analytical technique that is inexpensive and easily measured