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Microstructures of poly (ethylene glycol) by molding and dewetting
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Suh, Kahp Y. | - |
dc.contributor.author | Lee, Hong H. | - |
dc.date.accessioned | 2009-08-06T04:25:13Z | - |
dc.date.available | 2009-08-06T04:25:13Z | - |
dc.date.issued | 2003-08-25 | - |
dc.identifier.citation | Appl. Phys. Lett. 83, 1668 (2003) | en |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | https://hdl.handle.net/10371/6230 | - |
dc.description.abstract | We report on the fabrication of microstructures of poly (ethylene glycol) (PEG) using a soft molding technique. When a patterned poly (dimethylsiloxane) stamp is placed on a wet PEG film, the polymer in contact with the stamp spontaneously moves into the void space as a result of capillary action. Three types of microstructures are observed with the substrate surface completely exposed: a negative replica of the stamp, a two-dimensional projection of the simple cubic structure, and a two-dimensional projection of the diamond structure. A molding process is responsible for the first type and a dewetting process for the final two. A phase diagram is constructed based on the effects of molecular weight and concentration, which shows that mobility and confinement play a crucial role in determining the particular type of microstructure obtained. The PEG microstructure could be used as a lithographic resist in fabricating electronic devices and a resistant layer for preventing nonspecific adsorption of proteins or cells. | en |
dc.description.sponsorship | This research was supported by, or supported in part by, the U.S. Army through the Institute for Soldier Nanotechnologies, under Contract No. DAAD-19-02-D0002 with the
U.S. Army Research Office. | en |
dc.language.iso | en | en |
dc.publisher | American Institute of Physics | en |
dc.subject | 3-DIMENSIONAL MICROSTRUCTURES | en |
dc.subject | SOFT LITHOGRAPHY | en |
dc.subject | FABRICATION | en |
dc.subject | SURFACES | en |
dc.subject | FILMS | en |
dc.title | Microstructures of poly (ethylene glycol) by molding and dewetting | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 서갑양 | - |
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