Cloud Droplet Activation of Amino Acid Aerosol Particles.
(2010) In Journal of physical chemistry. A 114(1). p.379-386- Abstract
- In this work we investigated the ability of a series of amino acids to act as cloud condensation nuclei using a static thermal gradient diffusion type cloud condensation nucleus counter. Particles of pure dry l-glycine, glycyl-glycine, l-serine, l-methionine, l-glutamic acid, l-aspartic acid, and l-tyrosine were studied as well as internally mixed dry particles containing ammonium sulfate and one or two of the following amino acids: l-methionine, l-aspartic acid, or l-tyrosine. The amino acids ranged in water solubility from high (>100 g/L), intermediate (10-100 g/L), low (3-10 g/L), to very low (<3 g/L). With the exception of l-methionine and l-tyrosine, all the studied pure amino acid particles activated as though they were fully... (More)
- In this work we investigated the ability of a series of amino acids to act as cloud condensation nuclei using a static thermal gradient diffusion type cloud condensation nucleus counter. Particles of pure dry l-glycine, glycyl-glycine, l-serine, l-methionine, l-glutamic acid, l-aspartic acid, and l-tyrosine were studied as well as internally mixed dry particles containing ammonium sulfate and one or two of the following amino acids: l-methionine, l-aspartic acid, or l-tyrosine. The amino acids ranged in water solubility from high (>100 g/L), intermediate (10-100 g/L), low (3-10 g/L), to very low (<3 g/L). With the exception of l-methionine and l-tyrosine, all the studied pure amino acid particles activated as though they were fully soluble, although Kohler theory modified to account for limited solubility suggests that the activation of the intermediate and low solubility amino acids l-serine, l-glutamic acid, and l-aspartic acid should be limited by solubility. Activation of mixed particles containing at least 60% dry mass of l-tyrosine was limited by solubility, but the activation of the other investigated mixed particles behaved as if fully soluble. In general, the results show that particles containing amino acids at atmospherically relevant mixture ratios are good cloud condensation nuclei. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1523702
- author
- Kristensson, Adam LU ; Rosenørn, Thomas and Bilde, Merete
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of physical chemistry. A
- volume
- 114
- issue
- 1
- pages
- 379 - 386
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000273268900045
- pmid:20000558
- scopus:75249092017
- pmid:20000558
- ISSN
- 1520-5215
- DOI
- 10.1021/jp9055329
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Nuclear Physics (Faculty of Technology) (011013007)
- id
- f186a518-b06e-44b0-ad2c-a0d5aef89b64 (old id 1523702)
- date added to LUP
- 2016-04-01 13:13:10
- date last changed
- 2022-03-21 17:22:47
@article{f186a518-b06e-44b0-ad2c-a0d5aef89b64,
abstract = {{In this work we investigated the ability of a series of amino acids to act as cloud condensation nuclei using a static thermal gradient diffusion type cloud condensation nucleus counter. Particles of pure dry l-glycine, glycyl-glycine, l-serine, l-methionine, l-glutamic acid, l-aspartic acid, and l-tyrosine were studied as well as internally mixed dry particles containing ammonium sulfate and one or two of the following amino acids: l-methionine, l-aspartic acid, or l-tyrosine. The amino acids ranged in water solubility from high (>100 g/L), intermediate (10-100 g/L), low (3-10 g/L), to very low (<3 g/L). With the exception of l-methionine and l-tyrosine, all the studied pure amino acid particles activated as though they were fully soluble, although Kohler theory modified to account for limited solubility suggests that the activation of the intermediate and low solubility amino acids l-serine, l-glutamic acid, and l-aspartic acid should be limited by solubility. Activation of mixed particles containing at least 60% dry mass of l-tyrosine was limited by solubility, but the activation of the other investigated mixed particles behaved as if fully soluble. In general, the results show that particles containing amino acids at atmospherically relevant mixture ratios are good cloud condensation nuclei.}},
author = {{Kristensson, Adam and Rosenørn, Thomas and Bilde, Merete}},
issn = {{1520-5215}},
language = {{eng}},
number = {{1}},
pages = {{379--386}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Journal of physical chemistry. A}},
title = {{Cloud Droplet Activation of Amino Acid Aerosol Particles.}},
url = {{http://dx.doi.org/10.1021/jp9055329}},
doi = {{10.1021/jp9055329}},
volume = {{114}},
year = {{2010}},
}