Lucy Nandy
University of Minnesota
14 Papers
54 Citations
Lucy Nandy is an academic researcher from University of Minnesota. The author has contributed to research in topics: Aerosol & Particle. The author has an hindex of 8, co-authored 12 publications. Previous affiliations of Lucy Nandy include University of Illinois at Urbana–Champaign.
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Papers
Direct Determination of Aerosol pH: Size-Resolved Measurements of Submicrometer and Supermicrometer Aqueous Particles.
Rebecca L. Craig,Peter K. Peterson,Lucy Nandy,Ziying Lei,Mohammed A. Hossain,Stephanie Camarena,Ryan A. Dodson,Ryan D. Cook,Cari S. Dutcher,Andrew P. Ault +9 more
TL;DR: A novel and facile method for direct measurement of size-resolved aerosol acidity from pH 0 to 4.5 is presented using quantitative colorimetric image processing of cellular phone images of (NH4)2SO4-H2 SO4 aqueous aerosol particles impacted onto pH-indicator paper.
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Direct Measurement of pH in Individual Particles via Raman Microspectroscopy and Variation in Acidity with Relative Humidity
Joel D. Rindelaub,Rebecca L. Craig,Lucy Nandy,Amy L. Bondy,Cari S. Dutcher,Paul B. Shepson,Andrew P. Ault +6 more
TL;DR: Raman microspectroscopy was used to determine the pH of individual particles based on sulfate and bisulfate concentrations determined from νs(SO4(2-)) and νS(HSO4(-)), the acid dissociation constant, and activity coefficients from extended Debye-Hückel calculations, indicating the potential for direct spectroscopic determination of pH in individual particles.
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Spectroscopic Determination of Aerosol pH from Acid–Base Equilibria in Inorganic, Organic, and Mixed Systems
TL;DR: A consistent relationship between increasing peak broadness with decreasing pH was observed for acidic species, but not their conjugate bases, and greater insight into spectroscopic responses to acid-base equilibria for more complicated mixtures is still needed to understand the behavior of atmospheric aerosols.
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Phase Behavior of Ammonium Sulfate with Organic Acid Solutions in Aqueous Aerosol Mimics Using Microfluidic Traps.
Lucy Nandy,Cari S. Dutcher +1 more
TL;DR: This study will help determine the concentration at which a mixture droplet, mimicking organic and inorganic atmospheric aerosols, changes phase, by studying phase transitions of internally mixed aqueous droplets.
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Accurate Prediction of Organic Aerosol Evaporation Using Kinetic Multilayer Modeling and the Stokes-Einstein Equation.
Stephen Ingram,Grazia Rovelli,Young Chul Song,David Topping,Cari S. Dutcher,Shihao Liu,Lucy Nandy,Manabu Shiraiwa,Jonathan P. Reid +8 more
TL;DR: In this article, the coevaporation of semivolatile organic compounds (SVOCs), along with their solvating water, from aerosol particles levitated in a humidity-controlled environment was examined.
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