Nicole gives departmental seminar!

Nicole recently gave a seminar, titled Organic Aerosol Phase and Viscosity Changes after Multiphase Chemistry, to the analytical chemistry graduate students and faculty. This was Nicole's first oral presentation about her research towards understanding the physicochemical properties of organic aerosols after reaction with gas-phase species. This project is an ongoing collaboration with the Surratt Group at UNC-Chapel Hill. Congrats! 

2018 International Aerosol Conference

Ault's Lab at 2018 IAC 

Last week, Ault's lab went to the 10th international aerosol conference in Saint Louis, and had very exciting presentations! 

Nicole Olson (Doctoral Student) - Poster
IEPOX Changes Aerosol Morphology and Viscosity
NICOLE OLSON, Ziying Lei,  Rebecca Craig, Yue Zhang, Yuzhi Chen, Andrew Lambe, Jason Surratt, Andrew Ault, University of Michigan

Ziying (Nancy) Lei (Doctoral Student) - Poster

Spreading Ratio and Morphology of Size-dependent Secondary Organic Aerosol

ZIYING LEI, Nicole Olson, Yue Zhang, Yuzhi Chen, Natalie White, Andrew Lambe, Jason Surratt, Andrew Ault, University of Michigan

Dr. Andrew Ault (Professor/PI) - Talk
Exploring Acidity in 1-10 µm Sized LiquidLiquid Phase Separated Aerosol Particles.  Andrew Ault, Rebecca Craig University of Michigan

Dr. Andrew Ault (Professor/PI) - Talk
Connecting Phase Separations in Ambient Secondary Organic Aerosol and Ammonium Sulfate Particles to Relative Humidity and Temperature. ANDREW AULT, Amy Bondy, Sydney Niles, Peter Peterson, Little Josie, Rashad Pace, Ryan Moffet, Rachel O'Brien, Bingbing Wang, Alexander Laskin, University of Michigan

Collaborators
Dr. Matthieu Riva Talk
Understanding Missing Sources of Fine Particulate Organosulfur Compounds in the Atmosphere: Implications from Ambient Measurements and Laboratory Experiments. 
MATTHIEU RIVA, Yuzhi Chen, Lindsay Yee, Hilary Green, Tianqu Cui, Nicole Olson, Nancy Ziying, Karsten Baumann, Mike Fort, Eric Edgerton, Eladio Knipping, Stephanie L. Shaw, Sri Hapsari Budisulistiorini, Caitlin Rose, Zhenfa Zhang, Avram Gold, Barbara Turpin, William Vizuete, Igor O. Ribeiro, Santos e Oliveira, Cristine Machado, Sérgio Duvoisin Junior, Rodrigo A. F. de Souza, Eliane Gomes, et al., University of North Carolina at Chapel Hill

Dr. Yue Zhang (Postdoc at UNC-Chapel Hill) - Talk
Enhancement of the Heterogeneous Ice Nucleation by the Phase State Change of Organic Aerosols. YUE ZHANG, Martin Wolf, Leonid Nichman, Zhenfa Zhang, Avram Gold, John Jayne, Paul Davidovits, Douglas Worsnop, Jason Surratt, Timothy Onasch, Daniel Cziczo, MIT; Aerodyne Research, Inc.; University of North Carolina at Chapel Hill

Dr. Yue Zhang (Postdoc at UNC-Chapel Hill) - Talk
Enhancement of the Heterogeneous Ice Nucleation by the Phase State Change of Organic Aerosols. YUE ZHANG, Martin Wolf, Leonid Nichman, Zhenfa Zhang, Avram Gold, John Jayne, Paul Davidovits, Douglas Worsnop, Jason Surratt, Timothy Onasch, Daniel Cziczo, MIT; Aerodyne Research, Inc.; University of North Carolina at Chapel Hill

Yuzhi Chen (Doctoral Student at UNC-Chapel Hill) - Talk
Experimental Study of Condensed-Phase Reaction Kinetics of Secondary Organic Aerosols from Isoprene Expoxydiols. YUZHI CHEN, Matthieu Riva, Theran P. Riedel, Havala Pye, Nicole Olson, Ziying Lei, Zhenfa Zhang, Avram Gold, William Vizuete, Barbara Turpin, Andrew Ault, Jason Surratt, University of North Carolina at Chapel Hill

Nicole and Nancy at Arch

New Aerosol Acidity Paper Came Out

Recently, a new paper "Direct Determination of Aerosol pH: Size-Resolved Measurements of Submicron and Supermicron Aqueous Particles" had been accepted by Analytical Chemistry. This paper is lead by Dr. Becky Craig, who successfully defended her PhD in April.

Congrats!!!

Ault Lab Presents at Michigan's Karle Symposium

Ault Lab graduate students Nicole Olson and Nancy Lei presented posters about secondary organic aerosols at Michigan's Karle Symposium. Ault Lab high school student Monwarul Islam also presented a poster on his work this summer with aerosol acidity. Nicole was chosen as one of the top 5 analytical posters of the symposium! Congrats to all!

 
Nicole with her poster on secondary organic aerosol morphology and viscosity. The poster was chosen as one of the top 5 analytical posters of the symposium.

 
Monwarul Islam, a high school student participating in the D-RISE program, showing off his work with aerosol acidity.


Nicole teaching incoming graduate students about the importance of aerosols.

Nicole Awarded Her Masters in Chemistry!

Nicole Olson received her master's degree in chemistry! Next stop, PhD! 

Nancy Passed Doctoral Qualify Exam

After the first year of Ph.D. program in Environmental Health Science Nancy took the Doctoral Quality Exam (DQE). She spent two weeks to prepare for this exam and Dr. Ault provided her lots of help. Two days before going to a field study in the University of North Carolina, she finished her defense. In June 11th, she has been informed by the Academic Degree Programs Committee that she has passd the exam.

Congrats!!!

UNC Field Study Update

The Ault and Surratt Lab's have been quite busy performing secondary organic aerosol (SOA) experiments. In this study, we have created SOA from 5 different sources, both biogenic and anthropogenic, and performed reactive uptake of IEPOX on each type. The study, appropriately titled IEPOXalypse, has already made some really exciting discoveries that we are excited to share with you all soon! Check below for some pictures of the study thus far.

 
Nancy and Andy working hard to set up equipment before starting our experiments.


Nicole, Yuzhi Chen, Nancy, and Yue Zhang smiling after a day of successful experiments.


Nicole and Nancy transferring data the old fashioned way - quite the learning experience! :)


Celebratory dinner with collaborators from the Surratt Lab and the Army.