@article{79cc3112d5114464b829801a1dd64aec,
title = "The impact of sampling medium and environment on particle morphology",
abstract = "Sampling on different substrates is commonly used in laboratory and field studies to investigate the morphology and mixing state of aerosol particles. Our focus was on the transformations that can occur to the collected particles during storage, handling, and analysis. Particle samples were prepared by electrostatic deposition of size-classified sodium chloride, sulfuric acid, and coated soot aerosols on different substrates. The samples were inspected by electron microscopy before and after exposure to various environments. For coated soot, the imaging results were compared against mass-mobility measurements of airborne particles that underwent similar treatments. The extent of sample alteration ranged from negligible to major, depending on the environment, substrate, and particle composition. We discussed the implications of our findings for cases where morphology and the mixing state of particles must be preserved, and cases where particle transformations are desirable.",
keywords = "Aerosols, Electron microscopy, Morphology, Sampling, Sodium chloride, Soot, Substrate, Sulfuric acid",
author = "Chao Chen and Enekwizu, {Ogochukwu Y.} and Yan Ma and Dmitry Zakharov and Khalizov, {Alexei F.}",
note = "Funding Information: Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China; achao_corn@163.com (C.C.); my_nj@163.com (Y.M.) Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, USA; oye2@njit.edu Department of Chemical Biological and Pharmaceutical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA; dzakharov@bnl.gov Correspondence: khalizov@njit.edu; Tel.: +1-973-596-3853 Funding Information: Acknowledgments: This work was supported by the National Science Foundation (AGS 1463702) and the Center for Functional Nanomaterials at Brookhaven National Laboratory (34050). C.C. acknowledges scholarship from the China Scholarship Council. The authors thank Abraham Kupperman from the Bergen County Technical High School for help with wetting angle measurements. Publisher Copyright: {\textcopyright} 2017 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2017",
month = aug,
day = "29",
doi = "10.3390/atmos8090162",
language = "English (US)",
volume = "8",
pages = "162",
journal = "ATMOSPHERE",
issn = "2073-4433",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "9",
}