PMID- 33789043
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210414
IS  - 1948-7185 (Electronic)
IS  - 1948-7185 (Linking)
VI  - 12
IP  - 13
DP  - 2021 Apr 8
TI  - Ice Nucleation Activity of Perfluorinated Organic Acids.
PG  - 3431-3435
LID - 10.1021/acs.jpclett.1c00604 [doi]
AB  - Perfluorinated acids (PFAs) are widely used synthetic chemical compounds, highly 
      resistant to environmental degradation. The widespread PFA contamination in 
      remote regions such as the High Arctic implies currently not understood 
      long-range atmospheric transport pathways. Here, we report that perfluorooctanoic 
      acid (PFOA) initiates heterogeneous ice nucleation at temperatures as high as -16 
       degrees C. In contrast, the eight-carbon octanoic acid, perfluorooctanesulfonic acid, 
      and deprotonated PFOA showed poor ice nucleating capabilities. The ice nucleation 
      ability of PFOA correlates with the formation of a PFOA monolayer at the 
      air-water interface, suggesting a mechanism in which the aligned hydroxyl groups 
      of the carboxylic acid moieties provide a lattice matching to ice. The ice 
      nucleation capabilities of fluorinated compounds like PFOA might be relevant for 
      cloud glaciation in the atmosphere and the removal of these persistent pollutants 
      by wet deposition.
FAU - Schwidetzky, Ralph
AU  - Schwidetzky R
AD  - Max Planck Institute for Polymer Research, 55128 Mainz, Germany.
FAU - Sun, Yuling
AU  - Sun Y
AD  - Max Planck Institute for Polymer Research, 55128 Mainz, Germany.
FAU - Frohlich-Nowoisky, Janine
AU  - Frohlich-Nowoisky J
AUID- ORCID: 0000-0002-1278-0054
AD  - Max Planck Institute for Chemistry, 55128 Mainz, Germany.
FAU - Kunert, Anna T
AU  - Kunert AT
AUID- ORCID: 0000-0002-2163-8973
AD  - Max Planck Institute for Chemistry, 55128 Mainz, Germany.
FAU - Bonn, Mischa
AU  - Bonn M
AUID- ORCID: 0000-0001-6851-8453
AD  - Max Planck Institute for Polymer Research, 55128 Mainz, Germany.
FAU - Meister, Konrad
AU  - Meister K
AUID- ORCID: 0000-0002-6853-6325
AD  - Max Planck Institute for Polymer Research, 55128 Mainz, Germany.
AD  - University of Alaska Southeast, Juneau, Alaska 99801, United States.
LA  - eng
PT  - Journal Article
DEP - 20210331
PL  - United States
TA  - J Phys Chem Lett
JT  - The journal of physical chemistry letters
JID - 101526034
SB  - IM
PMC - PMC8040019
COIS- The authors declare no competing financial interest.
EDAT- 2021/04/01 06:00
MHDA- 2021/04/01 06:01
PMCR- 2021/04/12
CRDT- 2021/03/31 20:05
PHST- 2021/04/01 06:00 [pubmed]
PHST- 2021/04/01 06:01 [medline]
PHST- 2021/03/31 20:05 [entrez]
PHST- 2021/04/12 00:00 [pmc-release]
AID - 10.1021/acs.jpclett.1c00604 [doi]
PST - ppublish
SO  - J Phys Chem Lett. 2021 Apr 8;12(13):3431-3435. doi: 10.1021/acs.jpclett.1c00604. 
      Epub 2021 Mar 31.