Maximizing efficiency of dipolar recoupling in solid-state NMR using optimal control sequences

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F21%3A10433801" target="_blank" >RIV/00216208:11310/21:10433801 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14740/21:00124435

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Uy7VsSX0j7" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Uy7VsSX0j7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1126/sciadv.abj5913" target="_blank" >10.1126/sciadv.abj5913</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Maximizing efficiency of dipolar recoupling in solid-state NMR using optimal control sequences

Popis výsledku v původním jazyce

Dipolar recoupling is a central concept in the nuclear magnetic resonance spectroscopy of powdered solids and is used to establish correlations between different nuclei by magnetization transfer. The efficiency of conventional cross-polarization methods is low because of the inherent radio frequency (rf) field inhomogeneity present in the magic angle spinning (MAS) experiments and the large chemical shift anisotropies at high magnetic fields. Very high transfer efficiencies can be obtained using optimal control-derived experiments. These sequences had to be optimized individually for a particular MAS frequency. We show that by adjusting the length and the rf field amplitude of the shaped pulse synchronously with sample rotation, optimal control sequences can be successfully applied over a range of MAS frequencies without the need of reoptimization. This feature greatly enhances their applicability on spectrometers operating at differing external fields where the MAS frequency needs to be adjusted to avoid detrimental resonance effects.

Název v anglickém jazyce

Maximizing efficiency of dipolar recoupling in solid-state NMR using optimal control sequences

Popis výsledku anglicky

Dipolar recoupling is a central concept in the nuclear magnetic resonance spectroscopy of powdered solids and is used to establish correlations between different nuclei by magnetization transfer. The efficiency of conventional cross-polarization methods is low because of the inherent radio frequency (rf) field inhomogeneity present in the magic angle spinning (MAS) experiments and the large chemical shift anisotropies at high magnetic fields. Very high transfer efficiencies can be obtained using optimal control-derived experiments. These sequences had to be optimized individually for a particular MAS frequency. We show that by adjusting the length and the rf field amplitude of the shaped pulse synchronously with sample rotation, optimal control sequences can be successfully applied over a range of MAS frequencies without the need of reoptimization. This feature greatly enhances their applicability on spectrometers operating at differing external fields where the MAS frequency needs to be adjusted to avoid detrimental resonance effects.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

<a href="/cs/project/GC20-00166J" target="_blank" >GC20-00166J: Vývoj experimentů NMR pevné fáze pro studium proteinů pomocí teorie optimálních procesů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Science advances [online]

ISSN

2375-2548

e-ISSN

—

Svazek periodika

7

Číslo periodika v rámci svazku

42

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

eabj5913

Kód UT WoS článku

000707571700032

EID výsledku v databázi Scopus

2-s2.0-85117036824