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Sökning: onr:"swepub:oai:DiVA.org:su-34740" > Collisions with bio...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003158naa a2200481 4500
001oai:DiVA.org:su-34740
003SwePub
008100111s2009 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-347402 URI
0247 a https://doi.org/10.1088/1742-6596/194/1/0120532 DOI
040 a (SwePub)su
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a kon2 swepub-publicationtype
1001 a Haag, Nicoleu Stockholms universitet,Fysikum,Atomic Physics4 aut0 (Swepub:su)haag
2451 0a Collisions with biomolecules embedded in smallwater clusters
264 c 2009-12-24
264 1b IOP Publishing,c 2009
338 a print2 rdacarrier
4900 a Journal of Physics: Conference Series,x 1742-6596 ;v 194
520 a We have studied fragmentation of water embedded adenosine 5’-monophosphate(AMP) anions after collisions with neutral sodium atoms. At a collision energy of 50 keV,loss of water molecules from the collisionally excited cluster ions is the dominant process andfragmentation of the AMP itself is almost completely prohibited if the number of attachedwater molecules is larger than 13. However, regardless of the initial number of water moleculesattached to the ion, capture of an electron, i.e. formation of a dianion, always leads to loss ofa single hydrogen atom accompanied by evaporation of water molecules. This damaging effectbecomes more important as the size of the water cluster increases, which is just the oppositeto the protective behavior observed for collision induced dissociation (CID) without electrontransfer. For both cases, the loss of water molecules within the experimental time frame isqualitatively well described by means of a common model of an evaporative ensemble. Thesesimulations, however, indicate that characteristically different distributions of internal energyare involved in CID and electron capture induced dissociation.
650 7a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng
650 7a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng
653 a Biophysics
653 a biofysik
653 a fysik
653 a Physics
7001 a Liu, Bo4 aut
7001 a Brøndsted Nielsen, Steen4 aut
7001 a Zettergren, Henning4 aut
7001 a Hvelplund, Preben4 aut
7001 a Manil, Bruno4 aut
7001 a Huber, Bernd A.4 aut
7001 a Johansson, Henrik A. B.u Stockholms universitet,Fysikum4 aut0 (Swepub:su)henjo
7001 a Schmidt, Henning T.u Stockholms universitet,Fysikum4 aut0 (Swepub:su)schmidt
7001 a Cederquist, Henriku Stockholms universitet,Fysikum4 aut0 (Swepub:su)cederq
7102 a Stockholms universitetb Fysikum4 org
8564 u https://doi.org/10.1088/1742-6596/194/1/012053
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-34740
8564 8u https://doi.org/10.1088/1742-6596/194/1/012053

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