Imperial College London


Faculty of EngineeringDepartment of Chemical Engineering

Research Associate







ACE ExtensionSouth Kensington Campus





Research Interest

I am a research associate in the 'Polymers & Microfluidics' group with a multidisciplinary research experience spanning biophysics and chemistry, optics & spectroscopy, and soft matter. I worked towards development and application of advanced spectroscopic methods and techniques for clinical diagnostics and understanding biomolecular interactions. My current research interest combines molecular spectroscopy and its applications, to fundamental research in soft matter physics. The work area expands to molecular engineering and thermodynamics of multi-component colloid and surfactant systems to interrogate their phase behaviour and physicochemical properties and their applications in improving cleaning efficiency of formulations to develop sustainable
predictive cleaning and efficient anti-microbial agents.


2019-present-   Postdoctoral fellow, Polymers and Microfluidics Group, Chemical Engineering, Imperial College London.

2018-2019-   Lecturer, D Y Patil University, Pune, India.

2017-2018-   Science and Engineering Research board National postdoctoral fellow, ACTREC, TMC, Mumbai, India.

2010-2015-   PhD in Biophysics, National Physical Laboratory and University of Delhi, New Delhi, India. 



Tyagi G, Sharratt WN, Erikson S, et al., 2022, Solution structures of anionic-amphoteric surfactant mixtures near the two-phase region at fixed pH, Langmuir: the Acs Journal of Surfaces and Colloids, Vol:38, ISSN:0743-7463, Pages:7198-7207

Sharratt WN, Lopez CG, Sarkis M, et al., 2021, Ionotropic gelation fronts in sodium carboxymethyl cellulose for hydrogel particle formation, Gels, Vol:7, ISSN:2310-2861

Hole A, Tyagi G, Deshmukh A, et al., 2021, Salivary Raman Spectroscopy: Standardization of Sampling Protocols and Stratification of Healthy and Oral Cancer Subjects, Applied Spectroscopy, Vol:75, ISSN:0003-7028, Pages:581-588

Tyagi G, Seddon D, Khodaparast S, et al., 2021, Tensiometry and FTIR study of the synergy in mixed SDS:DDAO surfactant solutions at varying pH, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol:618, ISSN:0927-7757

Khodaparast S, Sharratt WN, Tyagi G, et al., 2021, Pure and mixed aqueous micellar solutions of Sodium Dodecyl sulfate (SDS) and Dimethyldodecyl Amine Oxide (DDAO): Role of temperature and composition, Journal of Colloid and Interface Science, Vol:582, ISSN:0021-9797, Pages:1116-1127

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