Vision

We use interdisciplinary science & engineering tools and techniques from the disciplines of phase transition, interfacial science, materials science, microfluidics and thermodynamic modeling to investigate physicochemical properties of complex aerosol particles in the dynamic environment

Research efforts here enhance understanding of aerosol phase, solid/liquid/gas partitioning, and liquid-liquid and ice-water morphologies that have impacts on human health, air quality and climate change. Although this research emphasizes mostly atmospherically relevant systems and pharmaceutical products, the measurements and modeling are useful to any application that requires thermodynamic predictions in complex aerosols.

Publications

Nandy, Fenton, Freedman, Heterogeneous Ice Nucleation in Model Crystalline Porous Organic Polymers: Influence of Pore Size on Immersion Freezing; Journal of Phys. Chem. A, 2023 (published online). https://doi.org/10.1021/acs.jpca.3c00071

Marak*, Nandy*, Jain, Freedman, Significance of Surface Silica/Alumina Ratio and Surface Termination on the Immersion Freezing of Zeolites; Phys.Chem.Chem.Phys, 2023, 25, 11442-11451. https://doi.org/10.1039/D2CP05466C *equal contribution

Nandy et al., Water Uptake and Optical Properties of Mixed Organic-Inorganic Particles; Aerosol Science and Technology, 2021, 55 (12), 1398-1413. https://doi.org/10.1080/02786826.2021.1966378

Ingram, Rovelli, Song, Topping, Dutcher, Liu, Nandy, Shiraiwa, Reid, Accurate Prediction of Organic Aerosol Evaporation Using Kinetic Multilayer Modelling and the Stokes-Einstein Equation; The Journal of Physical Chemistry A, 2021, 125 (16), 3444–3456. https://doi.org/10.1021/acs.jpca.1c00986.

Nandy et al., Multistep Phase Transitions in Sea Surface Microlayer Droplets and Aerosol Mimics using Microfluidic Wells; ACS Earth & Space Chemistry, 2019, 3 (7), 1260–1267. https://doi.org/10.1021/acsearthspacechem.9b00121. Special Issue Article; Also Highlighted in a Virtual Issue in ACS Atmospheric Chemistry Research

Craig, Peterson, Nandy et al., Direct Determination of Aerosol pH: Size-Resolved Measurements of Submicron and Supermicron Aqueous Particles; Analytical Chemistry, 2018, 90 (19), 11232–11239. https://pubs.acs.org/doi/pdf/10.1021/acs.analchem.8b00586

Marshall, Berkemeier, Shiraiwa, Nandy et al., Influence of Particle Viscosity on Mass Transfer and Heterogeneous Ozonolysis Kinetics in Aqueous-Sucrose-Maleic Acid Aerosol; Phys.Chem.Chem.Phys., 2018, 20, 15560-15573. http://pubs.rsc.org/en/content/articlepdf/2018/cp/c8cp01666f

Nandy and Dutcher, Phase Behavior of Ammonium Sulfate with Organic Acid Solutions in Aqueous Aerosol Mimics Using Microfluidic Traps; J. Phys. Chem. B, 2018,122 (13), 3480–3490. https://pubs.acs.org/doi/abs/10.1021/acs.jpcb.7b10655. Special Issue Article

Nandy and Dutcher, Isotherm-Based Thermodynamic Model for Solute Activities of Asymmetric Electrolyte Aqueous Solutions; J. Phys. Chem. A, 2017, 121 (37), 6957-6965. http://doi.org/10.1021/acs.jpca.7b03649

Craig, Nandy et al., Spectroscopic Determination of Aerosol pH from Acid−Base Equilibria in Inorganic, Organic, and Mixed Systems; J. Phys. Chem. A, 2017, 121 (30), 5690-5699. http://doi.org/10.1021/acs.jpca.7b05261. Part of Virtual Special Issue Article

Marsh, Miles, Rovelli, Cowling, Nandy et al., Influence of Organic Compound Functionality on Aerosol Hygroscopicity: Dicarboxylic Acids, Alkyl-Substituents, Sugars and Amino Acids; Atmos. Chem. Phys., 2017, 17 (9), 5583−5599. https://doi.org/10.5194/acp-17-5583-2017

Nandy et al., Isotherm-Based Thermodynamic Model for Solute Activities of Organic Acids with Consideration of Partial Disassociation; J. Phys. Chem. A, 2016, 120 (24), 4147-4154. http://doi.org/10.1021/acs.jpca.6b01904

Rindelaub, Craig, Nandy et al., DirectMeasurement of pH in Individual Particle via Raman Microspectroscopy and Variation in Acidity with Relative Humidity; J. Phys. Chem. A, 2016, 120 (6). http://doi.org/10.1021/acs.jpca.5b12699. Highlighted in the JPC A Virtual Issue on Atmospheric Phys. Chem.