{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T15:52:57Z","timestamp":1761580377258},"reference-count":20,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2006,2,27]],"date-time":"2006-02-27T00:00:00Z","timestamp":1140998400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biopolymers"],"published-print":{"date-parts":[[2006,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The surface\u2010enhanced Raman scattering (SERS) of salicylic acid (S) adsorbed on a silver sol in H<jats:sub>2<\/jats:sub>O and D<jats:sub>2<\/jats:sub>O has been investigated. At pH 5 or greater, the adsorbed species is the salicylate anion (2\u2010hydroxybenzoate anion) (S<jats:sup>\u2212<\/jats:sup>), which links to the metal nanoparticle (Ag<jats:italic><jats:sub>n<\/jats:sub><\/jats:italic>) through the carboxylate group (S<jats:sup>\u2212<\/jats:sup>\u2013Ag<jats:italic><jats:sub>n<\/jats:sub><\/jats:italic>). We demonstrate that the selective enhancement of the bands is due mainly to a resonant electron or charge transfer process (ET or CT) from the metallic nanoparticle to the adsorbate, yielding the transient formation of the respective radical dianion (S\u00b7<jats:sup>2\u2212<\/jats:sup>\u2013Ag<jats:italic><jats:sub>n<\/jats:sub><\/jats:italic><jats:sup>+<\/jats:sup>). It is found that the enhanced bands, and especially mode 8a;\u03bd<jats:sub>ring<\/jats:sub>, are related to the differences between the equilibrium structures of the adsorbate in its ground (S<jats:sup>\u2212<\/jats:sup>) and CT\u2010excited states (S\u00b7<jats:sup>2\u2212<\/jats:sup>). \u00a9 2006 Wiley Periodicals, Inc. Biopolymers 82: 379\u2013383, 2006<\/jats:p><jats:p>This article was originally published online as an accepted preprint. The \u201cPublished Online\u201d date corresponds to the preprint version. You can request a copy of the preprint by emailing the Biopolymers editorial office at biopolymers@wiley.com<\/jats:p>","DOI":"10.1002\/bip.20490","type":"journal-article","created":{"date-parts":[[2006,2,27]],"date-time":"2006-02-27T19:48:40Z","timestamp":1141069720000},"page":"379-383","source":"Crossref","is-referenced-by-count":9,"title":["Detecting photoinduced electron transfer processes in the SERS spectrum of salicylate anion adsorbed on silver nanoparticles"],"prefix":"10.1002","volume":"82","author":[{"given":"J. L.","family":"Castro","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. F.","family":"Arenas","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. R.","family":"L\u00f3pez\u2010Ram\u00edrez","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. 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