Innovation Starts From Curiosity
My Research interest
I am a physical chemist with expertise in faecal pigments analysis, analytical methods development, fluorescence spectroscopy, photophysics, molecular aggregations, plasmonics nanoparticles, and carbon nanoparticles to solve real-life problems and much more! I am working at the interface of fundamental and application aspects of fluorescence spectroscopy towards development of analytical applications. Starting from my Ph.D I am trying to solve environmental research problems i.e. trace concentration detection of FAECAL PIGMENTS in real-life applications. My major research goal is to work on both fundamental and transnational research in the field of water quality analysis, monitoring and sensing. I have gained different research exposure starting from my Master’s research to Postdoc’s research project in fluorescence, materials chemistry, chemical characterization, various spectroscopy and microscopy techniques, multi-step synthesis and optoelectronic characterization.
Research Interest Outlines
Faecal matter analysis, Water quality testing and monitoring, Dissolved organic matter (DOM) analysis, Rapid detection methods development, Novel analytical methods development, Chemical and optical sensing, Photophysics, Fluorescence spectroscopy, Optical sensor design and integration, Environmental contaminants, Real-time applications
1. Photophysics
(1) Understanding the photophysics of faecal pigments and their metal complexes in aqueous and mixed aqueous media.
(2) Determination of binding constant of metal ligand complexation, investigation of thermodynamic parameters
(3) Correlations of experimental spectroscopic results with the computational (DFT and TDDFT) results give better understanding regarding their geometry and energy.
(4) H-aggregation of faecal pigments signature in the aqueous media
2. Analytical Methods
(1) Development of opto-analytical method by integrating solvent phase extraction with fluorescence spectrometer to detect and quantify faecal contaminants in trace quantity for real time applications.
(2) Development of a rapid analytical method for detection of faecal pigments on zinc(II) embedded solid substrate under UV 365 nm light.
(3) The discovery of twin-metal-induced enhancement in water for faecal pigments fluorescence in molecular level by decreasing non-radiative decay rate constants. The optimum Zn(II): Gd(III) stoichiometry was observed at 3:2 for maximum faecal pigments fluorescence enhancement.
3. Chemical and optical sensing
(1) Development of optical sensor device, smart phone integrated optical setup, device integration and customisation, microfluidics chip design by 3D printing technology to detect and quantify faecal contaminants in trace quantity for onsite water quality testing applications.
(2) Development of test strip, chemical functionalisation, material coating, sensory material design etc for rapid testing applications
4. Carbon dots
(1) Understanding of the fundamental photophysical properties of carbon dots in solvent and in solid state. Demonstration of Fabry Perot lasing and white light generation from carbon dots-NaCl matrix in the solid state.
(2) Understanding the aggregation, solvatochromic and photophysical properties of excitation wavelength independent and dependent emission of amphiphilic carbon dots for bioimaging and organic acid or base sensing application.
