{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T18:54:47Z","timestamp":1767898487001,"version":"3.49.0"},"reference-count":37,"publisher":"AIP Publishing","issue":"21","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2010,6,7]]},"abstract":"<jats:p>The first detailed study of electron attachment to amino acid clusters is reported. The amino acids chosen for investigation were glycine, alanine, and serine. Clusters of these amino acids were formed inside helium nanodroplets, which provide a convenient low temperature (0.37 K) environment for growing noncovalent clusters. When subjected to low energy (2 eV) electron impact the chemistry for glycine and alanine clusters was found to be similar. In both cases, parent cluster anions were the major products, which contrasts with the corresponding monomers in the gas phase, where the dehydrogenated products ([AAn-H]\u2212, where AA=amino acid monomer) dominate. Serine clusters are different, with the major product being the parent anion minus an OH group, an outcome presumably conferred by the facile loss of an OH group from the \u03b2 carbon of serine. In addition to the bare parent anions and various fragment anions, helium atoms are also observed attached to both the parent anion clusters and the dehydrogenated parent anion clusters. Finally, we present the first anion yield spectra of amino acid clusters from doped helium nanodroplets as a function of incident electron energy.<\/jats:p>","DOI":"10.1063\/1.3429743","type":"journal-article","created":{"date-parts":[[2010,6,7]],"date-time":"2010-06-07T13:00:13Z","timestamp":1275915613000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":31,"title":["Electron attachment to amino acid clusters in helium nanodroplets: Glycine, alanine, and serine"],"prefix":"10.1063","volume":"132","author":[{"given":"F.","family":"Ferreira da Silva","sequence":"first","affiliation":[{"name":"Universit\u00e4t Innsbruck 1 Institut f\u00fcr Ionenphysik und Angewandte Physik and Center of Molecular Biosciences Innsbruck, , Technikerstr. 25, A-6020 Innsbruck, Austria"}]},{"given":"S.","family":"Denifl","sequence":"additional","affiliation":[{"name":"Universit\u00e4t Innsbruck 1 Institut f\u00fcr Ionenphysik und Angewandte Physik and Center of Molecular Biosciences Innsbruck, , Technikerstr. 25, A-6020 Innsbruck, Austria"}]},{"given":"T. D.","family":"M\u00e4rk","sequence":"additional","affiliation":[{"name":"Universit\u00e4t Innsbruck 1 Institut f\u00fcr Ionenphysik und Angewandte Physik and Center of Molecular Biosciences Innsbruck, , Technikerstr. 25, A-6020 Innsbruck, Austria"}]},{"given":"A. M.","family":"Ellis","sequence":"additional","affiliation":[{"name":"University of Leicester 2 Department of Chemistry, , University Road, Leicester LE1 7RH, United Kingdom"}]},{"given":"P.","family":"Scheier","sequence":"additional","affiliation":[{"name":"Universit\u00e4t Innsbruck 1 Institut f\u00fcr Ionenphysik und Angewandte Physik and Center of Molecular Biosciences Innsbruck, , Technikerstr. 25, A-6020 Innsbruck, Austria"}]}],"member":"317","published-online":{"date-parts":[[2010,6,4]]},"reference":[{"key":"2023062604393718700_c1","doi-asserted-by":"publisher","first-page":"3646","DOI":"10.1021\/ac010284l","volume":"73","year":"2001","journal-title":"Anal. 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