| Selective depositions on polyelectrolyte multilayers: self-assembled monolayers of m-dPEG acid as molecular template. | |
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MedLine Citation:
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PMID: 15070388 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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This paper describes the fabrication of self-assembled monolayer (SAM) patterns of m-d-poly(ethylene glycol) (m-dPEG) acid molecules onto polyelectrolyte multilayers (PEMs). The patterned SAMs on PEMs were created by ionic interactions using microcontact printing (microCP) technique. The created m-dPEG acid monolayer patterns on PEMs act as resistive templates, and thus further depositions of consecutive poly(anion)/poly(cation) pairs of charged particles result in the formation of three-dimensional (3-D) patterned PEM films or selective particle depositions atop the original multilayer thin films. In this study, we illustrate nonlithographic methods of patterning and controlling 3-D PEM architectures and selective particle depositions. We investigated the effect of variables--the choice of solvent, concentration, pH, substrate pretreatment, and stamp contact times--on microcontact printing of m-dPEG acid molecules onto PEM films to determine the optimal conditions for these parameters to achieve efficient transfer of m-dPEG acid patterns onto PEMs. Among the variables, the pH of the m-dPEG acid ink solution played the most important role in the transfer efficiency of the patterns onto the multilayer films. The patterned films were characterized by optical microscopy and atomic force microscopy (AFM). |
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Authors:
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Srivatsan Kidambi; Christina Chan; Ilsoon Lee |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of the American Chemical Society Volume: 126 ISSN: 0002-7863 ISO Abbreviation: J. Am. Chem. Soc. Publication Date: 2004 Apr |
Date Detail:
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Created Date: 2004-04-08 Completed Date: 2004-06-29 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7503056 Medline TA: J Am Chem Soc Country: United States |
Other Details:
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Languages: eng Pagination: 4697-703 Citation Subset: - |
Affiliation:
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Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan 48824, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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