| Adsorption of polymeric micelles and vesicles on a surface investigated by quartz crystal microbalance. | |
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MedLine Citation:
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PMID: 17048925 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Polystyrene-b-poly(N-isopropylacrylamide) (PS-b-PNIPAM) diblock copolymers either with or without thiol end groups, depending on the relative length of the two blocks, form micelles or vesicles in water. The adsorption of such micelles or vesicles on a gold surface from aqueous solution was investigated in situ at 20 degrees C by use of a quartz crystal microbalance with dissipation monitoring (QCM-D). The changes in frequency (Deltaf) and dissipation (DeltaD) revealed that the micelles and vesicles without thiol groups were intact with some deformation when they were deposited on the surface. On the other hand, the micelles and vesicles with thiol groups at the end of PNIPAM blocks would transform into trilayers due to the strong interaction between thiols and gold surface. |
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Authors:
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Yunfeng Yan; Xuechang Zhou; Jing Ji; Lifeng Yan; Guangzhao Zhang |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The journal of physical chemistry. B Volume: 110 ISSN: 1520-6106 ISO Abbreviation: J Phys Chem B Publication Date: 2006 Oct |
Date Detail:
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Created Date: 2006-10-19 Completed Date: 2007-09-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101157530 Medline TA: J Phys Chem B Country: United States |
Other Details:
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Languages: eng Pagination: 21055-9 Citation Subset: - |
Affiliation:
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Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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