Supramolecular Adducts between Poly‐L‐arginine and [TmIIIdotp]: A Route to Sensitivity‐Enhanced Magnetic Resonance Imaging–Chemical Exchange Saturation Transfer Agents
Identifieur interne : 000786 ( Istex/Checkpoint ); précédent : 000785; suivant : 000787Supramolecular Adducts between Poly‐L‐arginine and [TmIIIdotp]: A Route to Sensitivity‐Enhanced Magnetic Resonance Imaging–Chemical Exchange Saturation Transfer Agents
Auteurs : Silvio Aime [Italie] ; Daniela Delli Castelli ; Enzo TerrenoSource :
- Angewandte Chemie [ 0044-8249 ] ; 2003-09-29.
Descripteurs français
- Wicri :
- topic : Taux de change.
English descriptors
- KwdEn :
- Adduct, Aime, Angew, Bulk water protons, Bulk water signal, Castelli, Cest, Cest agents, Chem, Delli, Delli castelli, Diamagnetic, Exchange rate, Experimental conditions, Experimental section, Guanidine protons, High number, Irradiation frequency, Irradiation power, Irradiation pulse, Mobile protons, Open squares, Paramagnetic shift reagent, Polypeptide, Proton, Reagent, Resonance frequency, Sensitive systems, Shift reagent, Sinc pulses, Supramolecular, Terreno, Verlag gmbh, Water protons.
- Teeft :
- Adduct, Aime, Angew, Bulk water protons, Bulk water signal, Castelli, Cest, Cest agents, Chem, Delli, Delli castelli, Diamagnetic, Exchange rate, Experimental conditions, Experimental section, Guanidine protons, High number, Irradiation frequency, Irradiation power, Irradiation pulse, Mobile protons, Open squares, Paramagnetic shift reagent, Polypeptide, Proton, Reagent, Resonance frequency, Sensitive systems, Shift reagent, Sinc pulses, Supramolecular, Terreno, Verlag gmbh, Water protons.
Abstract
Als Kontrastmittel mit deutlich gesteigerter Empfindlichkeit erweist sich das supramolekulare Addukt aus einer diamagnetischen Komponente mit vielen austauschbaren Protonen (Poly‐L‐arginin) und einem paramagnetischen Verschiebungsreagens ([Tm(Hdotp)]4−): Die Differenz der chemischen Verschiebungen zweier Ensembles austauschender Protonen wird vergrößert. So kann durch gezieltes Einstrahlen mit der Frequenz der Guanidinprotonen des Polymers ein effizienter Sättigungstransfer erzielt werden (siehe Diagramm).
Url:
DOI: 10.1002/ange.200352132
Affiliations:
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ISTEX:1322B2FBB5ADBC97943DF3B67F07B974B6001C8DLe document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adduct</term>
<term>Aime</term>
<term>Angew</term>
<term>Bulk water protons</term>
<term>Bulk water signal</term>
<term>Castelli</term>
<term>Cest</term>
<term>Cest agents</term>
<term>Chem</term>
<term>Delli</term>
<term>Delli castelli</term>
<term>Diamagnetic</term>
<term>Exchange rate</term>
<term>Experimental conditions</term>
<term>Experimental section</term>
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<term>High number</term>
<term>Irradiation frequency</term>
<term>Irradiation power</term>
<term>Irradiation pulse</term>
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<term>Open squares</term>
<term>Paramagnetic shift reagent</term>
<term>Polypeptide</term>
<term>Proton</term>
<term>Reagent</term>
<term>Resonance frequency</term>
<term>Sensitive systems</term>
<term>Shift reagent</term>
<term>Sinc pulses</term>
<term>Supramolecular</term>
<term>Terreno</term>
<term>Verlag gmbh</term>
<term>Water protons</term>
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<keywords scheme="Teeft" xml:lang="en"><term>Adduct</term>
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<term>Bulk water protons</term>
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<term>Cest</term>
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<term>Delli castelli</term>
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<term>Exchange rate</term>
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<term>Experimental section</term>
<term>Guanidine protons</term>
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<term>Irradiation frequency</term>
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<term>Supramolecular</term>
<term>Terreno</term>
<term>Verlag gmbh</term>
<term>Water protons</term>
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<front><div type="abstract">Als Kontrastmittel mit deutlich gesteigerter Empfindlichkeit erweist sich das supramolekulare Addukt aus einer diamagnetischen Komponente mit vielen austauschbaren Protonen (Poly‐L‐arginin) und einem paramagnetischen Verschiebungsreagens ([Tm(Hdotp)]4−): Die Differenz der chemischen Verschiebungen zweier Ensembles austauschender Protonen wird vergrößert. So kann durch gezieltes Einstrahlen mit der Frequenz der Guanidinprotonen des Polymers ein effizienter Sättigungstransfer erzielt werden (siehe Diagramm).</div>
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