Ultrastructural characterization of colloidal metal films for bioanalytical applications by scanning force microscopy

dc.contributor.author Fritzsche, Wolfgang
dc.contributor.author Sokolov, Konstantin
dc.contributor.author Chumanov, George
dc.contributor.author Henderson, Eric
dc.contributor.author Cotton, Therese
dc.contributor.author Henderson, Eric
dc.contributor.department Zoology and Genetics
dc.contributor.department Chemistry
dc.date 2018-02-18T09:38:31.000
dc.date.accessioned 2020-07-07T05:16:49Z
dc.date.available 2020-07-07T05:16:49Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 1996
dc.date.issued 1996
dc.description.abstract <p>Colloidal metal films (CMFs) are prepared by the attachment of silver, gold, or platinum (or other metal) particles to a glass slide modified by silanization with 3‐mercaptopropyl silane. The covalent attachment of the metal particles occurs through the metal–sulfur bond. In these samples the local electromagnetic field is enhanced near the surface of the CMF due to excitation of plasmon resonances. This phenomenon can be used for a variety of analytical applications. Because the optical properties are strongly dependent on the morphology of the film, its structural characterization becomes of great importance. To further characterize CMFs we have used scanning force microscopy (SFM). Initial studies revealed lateral dimensions of the particles as well as the particle density. Height measurements were made using the three‐dimensional topographic image of the surface yielded by SFM, and were used to evaluate the selective deposition of a silica spacer layer onto the metal particles. Comparative SFM measurements in water and air using different imaging modes were performed to investigate the mechanical stability of CMFs against the forces exerted by the scanning tip.</p>
dc.description.comments <p>This article is from <em>Journal of Vacuum Science & Technology A </em>14 (1996): 1766, doi: <a href="http://dx.doi.org/10.1116/1.580334">10.1116/1.580334</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/zool_pubs/20/
dc.identifier.articleid 1019
dc.identifier.contextkey 10112346
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath zool_pubs/20
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/92629
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/zool_pubs/20/1996_Henderson_UltrastructuralCharacterization.pdf|||Fri Jan 14 22:17:54 UTC 2022
dc.source.uri 10.1116/1.580334
dc.subject.disciplines Cell Biology
dc.subject.disciplines Chemistry
dc.subject.disciplines Developmental Biology
dc.title Ultrastructural characterization of colloidal metal films for bioanalytical applications by scanning force microscopy
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 68bc511a-afd6-4353-ae20-066de33682b9
relation.isOrgUnitOfPublication 4a2929da-5374-4338-b62f-f5fd9e156ef9
relation.isOrgUnitOfPublication 42864f6e-7a3d-4be3-8b5a-0ae3c3830a11
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