Source:http://linkedlifedata.com/resource/pubmed/id/17555342
| Subject | Predicate | Object | Context |
|---|---|---|---|
| pubmed-article:17555342 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:17555342 | lifeskim:mentions | umls-concept:C0205148 | lld:lifeskim |
| pubmed-article:17555342 | lifeskim:mentions | umls-concept:C0872351 | lld:lifeskim |
| pubmed-article:17555342 | lifeskim:mentions | umls-concept:C1879688 | lld:lifeskim |
| pubmed-article:17555342 | lifeskim:mentions | umls-concept:C0348080 | lld:lifeskim |
| pubmed-article:17555342 | pubmed:issue | 26 | lld:pubmed |
| pubmed-article:17555342 | pubmed:dateCreated | 2007-6-29 | lld:pubmed |
| pubmed-article:17555342 | pubmed:abstractText | A unique "non-evaporation" phenomenon, i.e., the unusually slow evaporation process of sessile microdroplets on self-assembled monolayer (SAM) surfaces, is reported. It has been observed that only droplets containing a certain proportion of a volatile and a less-volatile component undergo non-evaporation, which is characterized by hours-long existence of the droplets maintaining constant contact angle, contact area, and volume. We propose that for alcohol-water binary mixtures on SAM surfaces, the highly orientated and closely packed hydrophobic 1-decanethiol molecules induce a concentration gradient of alcohol in water, with a higher concentration of alcohol near the SAM surface. Initial evaporation of the alcohol (more volatile) increased the contact angle until the establishment of a new composition, which contains a strong hydrogen-bonding network among the water molecules in the presence of the alcohol alkyl chains. There is a lessened tendency for the alcohol to evaporate in the presence of a concentration gradient due to such interactions, which results in the observed "non-evaporating" phenomenon. This type of unusual evaporating profile was not observed on conventional substrates, such as polycarbonate sheets and microscope glass slides modified with alkyltrichlorosilanes. | lld:pubmed |
| pubmed-article:17555342 | pubmed:language | eng | lld:pubmed |
| pubmed-article:17555342 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:17555342 | pubmed:status | PubMed-not-MEDLINE | lld:pubmed |
| pubmed-article:17555342 | pubmed:month | Jul | lld:pubmed |
| pubmed-article:17555342 | pubmed:issn | 1520-6106 | lld:pubmed |
| pubmed-article:17555342 | pubmed:author | pubmed-author:YuHua-ZhongHZ | lld:pubmed |
| pubmed-article:17555342 | pubmed:author | pubmed-author:SoolamanDinah... | lld:pubmed |
| pubmed-article:17555342 | pubmed:author | pubmed-author:ChengAlan K... | lld:pubmed |
| pubmed-article:17555342 | pubmed:issnType | lld:pubmed | |
| pubmed-article:17555342 | pubmed:day | 5 | lld:pubmed |
| pubmed-article:17555342 | pubmed:volume | 111 | lld:pubmed |
| pubmed-article:17555342 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:17555342 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:17555342 | pubmed:pagination | 7561-6 | lld:pubmed |
| pubmed-article:17555342 | pubmed:year | 2007 | lld:pubmed |
| pubmed-article:17555342 | pubmed:articleTitle | "Non-evaporating" microdroplets on self-assembled monolayer surfaces under ambient conditions. | lld:pubmed |
| pubmed-article:17555342 | pubmed:affiliation | Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada. | lld:pubmed |
| pubmed-article:17555342 | pubmed:publicationType | Journal Article | lld:pubmed |