A5081916296- Pickering emulsions and particle stabilization
- Polyoxometalates: Synthesis and Applications
- Mesoporous Materials and Catalysis
- Material Dynamics and Properties
- Surfactants and Colloidal Systems
- Proteins in Food Systems
- Rheology and Fluid Dynamics Studies
- Advanced Polymer Synthesis and Characterization
University of Michigan
2021-2025
University of California, Berkeley
2018
To investigate the ability of coarse-grained molecular dynamics simulations to predict relative growth rates crystal facets pharmaceutical molecules, we apply two coarse-graining strategies drug phenytoin and carbamazepine. In first method, map an atomistic model a MARTINI-level (CG) force field that uses 2 or 3 heavy atoms per bead. This is followed by applying Particle Swarm Optimization (PSO), global optimum searching algorithm, CG Lennard-Jones intermolecular potentials fit radial...
Building on the recent demonstration of aqueous-dispersible hydrophobic pigments that retain their surface hydrophobicity even after drying, we demonstrate synthesis surface-modified Ti-Pure R-706 (denoted R706) titanium dioxide-based pigments, consisting a thin (one to three monolayers) grafted polymethylhydrosiloxane (PMHS) coating, which (i) are in dry state according capillary rise and dynamic vapor sorption measurements (ii) form stable aqueous dispersions at solid contents exceeding 75...
To predict the complex rheology and shear-rate inhomogeneities of lamellar gel networks, we propose a simple thixotropic constitutive model with an elastoplastic stress smoothly decreasing modulus near solid boundary, motivated by analysis effect confinement shear flow on lamellae orientation surfaces. We show that qualitatively captures important features observed in experiments [Datta et al., J. Rheol. 64(4), 851–862 (2020)]. These include thinning is intermediate between constant...
Cationic surfactant mixed with fatty alcohol as cosurfactant in excess water can form stable emulsions, known "lamellar gel networks," that contain extended and interconnected networks of swollen bilayers, including ones in-plane liquidlike disorder (Lα phase) solidlike order (Lβ phase). To study their structure thermodynamics, molecular dynamics (MD) simulations lateral pressure temperature scans along reversible pathways were used to drive phase changes, formation at negative the LβI...