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Micrometer Size Effect on Dye Association in Single Laser-Trapped Water Droplets
Molecular association of malachite green (MG) in single micrometer-sized water droplets dispersed in di-n-butyl phthalate was studied by means of scanning laser manipulation and absorption spectroscopy to elucidate characteristic features of chemical processes at the droplet/oil interface. At a high...
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Published in: | Journal of physical chemistry (1952) 1996-02, Vol.100 (5), p.1494-1497 |
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Language: | English |
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container_end_page | 1497 |
container_issue | 5 |
container_start_page | 1494 |
container_title | Journal of physical chemistry (1952) |
container_volume | 100 |
creator | Yao, Hiroshi Inoue, Yasuhisa Ikeda, Hiroshi Nakatani, Kiyoharu Kim, Haeng-Boo Kitamura, Noboru |
description | Molecular association of malachite green (MG) in single micrometer-sized water droplets dispersed in di-n-butyl phthalate was studied by means of scanning laser manipulation and absorption spectroscopy to elucidate characteristic features of chemical processes at the droplet/oil interface. At a high MG concentration, the droplet showed a new absorption band around 580 nm in addition to the monomer band at 615 nm. Analyses of the concentration-dependent absorption spectrum of MG in the droplet indicated that the band at 580 nm could be assigned to that of the MG dimer. The dimer formation of MG in the water droplet was shown to be facilitated with decreasing the droplet diameter, demonstrating the micrometer size effect on dye association. A role of the water/oil interface for the MG dimer formation is discussed. |
doi_str_mv | 10.1021/jp952351j |
format | article |
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At a high MG concentration, the droplet showed a new absorption band around 580 nm in addition to the monomer band at 615 nm. Analyses of the concentration-dependent absorption spectrum of MG in the droplet indicated that the band at 580 nm could be assigned to that of the MG dimer. The dimer formation of MG in the water droplet was shown to be facilitated with decreasing the droplet diameter, demonstrating the micrometer size effect on dye association. A role of the water/oil interface for the MG dimer formation is discussed.</description><identifier>ISSN: 0022-3654</identifier><identifier>EISSN: 1541-5740</identifier><identifier>DOI: 10.1021/jp952351j</identifier><language>eng</language><publisher>American Chemical Society</publisher><ispartof>Journal of physical chemistry (1952), 1996-02, Vol.100 (5), p.1494-1497</ispartof><rights>Copyright © 1996 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a363t-1187d8c8ba0ce01fec68dc8623d4cb20ff98e991fb2d595223e81b735f1afefc3</citedby><cites>FETCH-LOGICAL-a363t-1187d8c8ba0ce01fec68dc8623d4cb20ff98e991fb2d595223e81b735f1afefc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/jp952351j$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/jp952351j$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,27064,27924,27925,56766,56816</link.rule.ids></links><search><creatorcontrib>Yao, Hiroshi</creatorcontrib><creatorcontrib>Inoue, Yasuhisa</creatorcontrib><creatorcontrib>Ikeda, Hiroshi</creatorcontrib><creatorcontrib>Nakatani, Kiyoharu</creatorcontrib><creatorcontrib>Kim, Haeng-Boo</creatorcontrib><creatorcontrib>Kitamura, Noboru</creatorcontrib><title>Micrometer Size Effect on Dye Association in Single Laser-Trapped Water Droplets</title><title>Journal of physical chemistry (1952)</title><addtitle>J. Phys. Chem</addtitle><description>Molecular association of malachite green (MG) in single micrometer-sized water droplets dispersed in di-n-butyl phthalate was studied by means of scanning laser manipulation and absorption spectroscopy to elucidate characteristic features of chemical processes at the droplet/oil interface. At a high MG concentration, the droplet showed a new absorption band around 580 nm in addition to the monomer band at 615 nm. Analyses of the concentration-dependent absorption spectrum of MG in the droplet indicated that the band at 580 nm could be assigned to that of the MG dimer. The dimer formation of MG in the water droplet was shown to be facilitated with decreasing the droplet diameter, demonstrating the micrometer size effect on dye association. 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Phys. Chem</addtitle><date>1996-02-01</date><risdate>1996</risdate><volume>100</volume><issue>5</issue><spage>1494</spage><epage>1497</epage><pages>1494-1497</pages><issn>0022-3654</issn><eissn>1541-5740</eissn><abstract>Molecular association of malachite green (MG) in single micrometer-sized water droplets dispersed in di-n-butyl phthalate was studied by means of scanning laser manipulation and absorption spectroscopy to elucidate characteristic features of chemical processes at the droplet/oil interface. At a high MG concentration, the droplet showed a new absorption band around 580 nm in addition to the monomer band at 615 nm. Analyses of the concentration-dependent absorption spectrum of MG in the droplet indicated that the band at 580 nm could be assigned to that of the MG dimer. The dimer formation of MG in the water droplet was shown to be facilitated with decreasing the droplet diameter, demonstrating the micrometer size effect on dye association. A role of the water/oil interface for the MG dimer formation is discussed.</abstract><pub>American Chemical Society</pub><doi>10.1021/jp952351j</doi><tpages>4</tpages></addata></record> |
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source | ACS CRKN Legacy Archives; American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list) |
title | Micrometer Size Effect on Dye Association in Single Laser-Trapped Water Droplets |
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