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  Studies of Quantum Mechanics/Molecular mechanics of small metabolites for quantification of chemical exchange saturation transfer

Ivchenko, O., Imhof, P., Zaiss, M., & Bachert, P. (2012). Studies of Quantum Mechanics/Molecular mechanics of small metabolites for quantification of chemical exchange saturation transfer. Poster presented at 20th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2012), Melbourne, Australia.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0001-9EFB-3 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0001-9EFC-2
Genre: Poster

Externe Referenzen

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externe Referenz:
https://www.ismrm.org/12/ep_12.htm (Zusammenfassung)
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 Urheber:
Ivchenko, O, Autor
Imhof, P, Autor
Zaiss, M1, Autor           
Bachert, P, Autor
Affiliations:
1German Cancer Research Center (DKFZ), Heidelberg, ou_persistent22              

Inhalt

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Schlagwörter: -
 Zusammenfassung: The chemical exchange rate was determined for creatine – NH2 group (kex =102.9 s-1) at the pH=6.5 using quantum mechanics/molecular mechanics simulations (QM/MM) in combination with umbrella sampling simulations. This value is in agreement with the value from CEST experiment. The chemical exchange rate was determining using Arrhenius equation: kex =Aexp(-Ea/KbT), where A is pre-exponential factor which determines the frequency of collusion ( calculated from classical MD simulations), and Ea is an activation energy characterizing the height of a barriers which protons need to overcome in order to transfer from solute to water and vice versa (determined from QM/MM simulations).

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 Datum: 2012-05
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
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Veranstaltung

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Titel: 20th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2012)
Veranstaltungsort: Melbourne, Australia
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Entscheidung

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Projektinformation

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Quelle 1

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Titel: 20th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2012)
Genre der Quelle: Konferenzband
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: - Artikelnummer: 4191 Start- / Endseite: - Identifikator: -