Industrial Complex Fluids & Soft Matter Research

Inks, Paints and Coatings. Cosmetics. Plant-based Meat & Diary Alternatives. Rheology Modifiers. Adhesives.

Sponsored & awards research: PPG Industries, Motif Foodworks, Colgate-Palmolive, 3M, TA industries.

Active & past collaborations: Abbvie, Dow, L’Oreal, AkzoNobel, Rheosense, 1366 Technologies.

PAINTS & COATINGS

Associative polymers as rheology modifiers, Particle suspensions in viscoelastic fluids

Extensional rheology, development of measurement techniques and protocols

Influence of viscoelastic matrix on the structure and rheology of particle suspensions

Funded by, and in collaboration with PPG Industries.

See Macromolecules, 2021.

Prior work

Development of jetting-based rheometry protocol called Rayleigh-Ohnesorge Jetting Extensional Rheometer (with Gareth McKinley, MIT). Supported by AkzoNobel 

See Sharma_etal_ROJERCelluloseEthers_SoftMatter2015

FUTURE FOODS

Plant-based proteins. Polysaccharide-Protein mixtures. Meat and Dairy alternatives

Shear and Extensional Rheology, Nonlinear Viscoelasticity, Pinch-off Dynamics, Protein and Polymer Physics, 

Dripping-Onto-Substrate (DoS) rheometry for characterizing capillary-driven thinning & pinch-off dynamics of food formulations.

Food foams and emulsions. Foamability and emulsification. Interfacial rheological properties of proteins.

In collaboration with and funded by Motif Foodworks.

Prior work

Interfacial and shear rheology of proteins, and protein-surfactant mixtures, in collaboration with Aditya Jaishankar & Gareth McKinley, MIT. Funded by Rheosense Inc.

FIBERS & NON-WOVENS

Centrifugal fiber spinning, Spinnability

Non-Newtonian Fluid Dynamics. Polymer and Fiber Science & Engineering.

Shear and Extensional rheology. Mechanical properties of fibers.

Launched with funds from the 3M Nontenured Faculty Award, in collaboration with Naveen Reddy, University of Hasselt, Belgium.

Prior work

P.I. UG senior year research & thesis on “Production of Carbon Fibers from PAN-based precursors” (with Pushpa Bajaj, IIT Delhi, India).

P.I. Barriness in melt spun fibers: role of spinning parameters (with Pushpa Bajaj, IIT Delhi, India). Funded by Reliance Industries.

P.I.’s Summer internship at Reliance’s PET fiber plant at Barabanki, U.P., India. 

COSMETICS & PERSONAL CARE

Emulsions, foams, particle suspensions in viscoelastic fluids

Shear and Extensional Rheology, Nonlinear Viscoelasticity, Pinch-off Dynamics, Dispensing Behavior, Stickiness, Stringiness, Gloopiness

Dripping-Onto-Substrate (DoS) rheometry for characterizing capillary-driven thinning & pinch-off dynamics of cosmetics.

Funded by Colgate-Palmolive.

Extensional rheology of silicones. In collaboration with Dow.

Formulation science and engineering. Questions motivated by presentations, collaborations, and discussions at Dow,  3M, AkzoNobel, PPG Industries, P&G, Nestle, Lubrizol, and L’Oreal.

The complex fluid beauty of nail lacquer formulations Jimenez_etal_SoftMatter2021

POLYSACCHARIDES & CELLULOSE DERIVATIVES

Shear and Extensional Rheology, Spinnability, Jettability, Stringiness

Associative polysaccharides including hmHEC, hmEHEC

Food rheology modifiers including NaCMC, Xanthan Gum

Paint rheology modifiers, influence on sprayability.

Cellulosic fibers and cellulose nanocrystals. Spinnability.

Dysphagia management: rheology modifiers

Questions and quests from PPG, AkzoNobel, Ashland, CPKelco, Colgate, and Motif Foodworks.

SURFACTANTS & INTERFACIAL SCIENCE

Surfactants, Soaps, Detergents, Plant-based Proteins for Egg/Dairy Alternatives for Food.

Soap science. Stratified foam films made up of SDS (sodium dodecyl sulfate), bile salts, sodium naphthenate.

Shear, extensional and interfacial rheology of proteins, and protein-polysaccharides or protein-lipid complexes.

Interferometry and Spectroscopy-assisted rheological characterization of biofluids. Lipid-Drug interactions and Lipid emulsion therapy.

Protein fizzics and dynamics & folding-unfolding kinetics.

Publications with industrial collaborations/ collaborators

63. Foams of animal and plant milk emulsions, L. Hassan, M. Reynoso, C. Xu, K. Al Zahabi, R. Maldonado, R. Nicholson, M. Boehm, S. Baier and V. Sharma, submitted, 2024.                    w/ Motif Foodworks Inc.

55. “Pinching dynamics, extensional rheology, and stringiness of saliva substitutes”, Karim Al-Zahabi, Lena Hasan, Michael Boehm, Stefan Baier, and V. Sharma*, Soft Matter, (2024)                 w/ Motif Foodworks Inc.

52. “Rheology and dispensing of real and vegan mayo: the chickpea or egg problem,” N. N. Nikolova, C. D. V. Martinez, Narvaez, L. Hassan, R. A. Nicholson, M. W. Boehm, S. K. Baier, and V. Sharma, Soft Matter, 19,  9413-9427, 2023. Read & watch SI video here      w/ Motif Foodworks Inc.

50. “Ultrathin micellar foam films of Sodium Caseinate protein solutions,” L Hassan, C. Xu, M. Boehm, S. Baier, and V. Sharma*,  Langmuir, 39, 6102-6112, 2023.  Link w/ Motif Foodworks Inc.

39. Rheology and pinching dynamics of associative polysaccharide solutions, C. D. V. Martínez Narváez, J. Dinic, X. Lu, C. Wang, R. Rock, H. Sun, and V. Sharma*, Macromolecules, 54, 6372-6288, 2021. PDF_AssociativePolysaccharides2021 w/ PPG Industries Inc.

16. “Studying the Effects of Elongational Properties on Atomization of Weakly Viscoelastic Solutions Using Rayleigh Ohnesorge Jetting Extensional Rheometry (ROJER),” B. Keshavarz, V. Sharma, E. C. Houze, M. R. Koerner, J. R. Moore, P. M. Cotts, P. Threlfall-Holmes and G. H. McKinley, JNNFM, 2015. (ROJER, paper 2). w/o Axalta Coatings and AkzoNobel

15. “The Rheology of Aqueous Solutions of Ethyl Hydroxy-Ethyl Cellulose (EHEC) and its Hydrophobically Modified Analogue (hmEHEC): Extensional Flow Response in Capillary Breakup, Jetting (ROJER) and in a Cross-Slot Extensional Rheometer”, V. Sharma*, S.J. Haward, J. Serdy, B. Keshavarz, A. Söderlund, P.Threlfall-Holmesand G. H. McKinley, http://tinyurl.com/ROJERJetting Soft Matter, 11, 3251-3270 (2015). Extensional Rheology of Cellulose Ethers using  ROJER PDF w/ Akzo Nobel

 

We welcome questions, suggestions, curiosities