Sensitivity-enhanced detection of non-labile proton and carbon NMR spectra on water resonances #DNPNMR
From The DNP-NMR Blog:
Sensitivity-enhanced detection of non-labile proton and carbon NMR spectra on water resonances #DNPNMR
Novakovic, M., et al., Sensitivity-enhanced detection of non-labile proton and carbon NMR spectra on water resonances. Phys. Chem. Chem. Phys., 2017. 20(1): p. 56-62.
https://www.ncbi.nlm.nih.gov/pubmed/29171604
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02-19-2018 08:46 PM
Journal Highlight: Water proton NMR for in situ detection of insulin aggregates
Journal Highlight: Water proton NMR for in situ detection of insulin aggregates
http://www.spectroscopynow.com/common/images/thumbnails/151f38394bb.jpgHuman insulin preparations were used to demonstrate that the transverse relaxation rate of water protons can serve as a sensitive and reliable indicator to detect and quantify both visible and sub-visible protein aggregates.
Read the rest at Spectroscopynow.com
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General
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01-04-2016 07:49 PM
TD NMR as a method to determine and characterize the water-binding capacity of whey protein microparticles
TD NMR as a method to determine and characterize the water-binding capacity of whey protein microparticles
Publication date: Available online 9 October 2015
Source:Food Hydrocolloids</br>
Author(s): Jorien P.C.M. Peters, Frank J. Vergeldt, Henk Van As, Hannemieke Luyten, Remko M. Boom, Atze Jan van der Goot</br>
Water-binding capacity (WBC) is commonly measured with a centrifugation method in which a sample is hydrated in excess water and the pellet weight after centrifugation defines the WBC. When a dispersion is being analyzed, here containing whey...
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Journal club
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10-10-2015 06:11 AM
Nanometer-scale water- and proton-diffusion heterogeneities across water channels in polymer electrolyte membranes
From The DNP-NMR Blog:
Nanometer-scale water- and proton-diffusion heterogeneities across water channels in polymer electrolyte membranes
Song, J., O.H. Han, and S. Han, Nanometer-scale water- and proton-diffusion heterogeneities across water channels in polymer electrolyte membranes. Angew Chem Int Ed Engl, 2015. 54(12): p. 3615-20.
http://www.ncbi.nlm.nih.gov/pubmed/25630609
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09-25-2015 09:05 AM
[NMR paper] Water Proton NMR for In Situ Detection of Insulin Aggregates.
Water Proton NMR for In Situ Detection of Insulin Aggregates.
Related Articles Water Proton NMR for In Situ Detection of Insulin Aggregates.
J Pharm Sci. 2015 Sep 7;
Authors: Taraban MB, Truong HC, Feng Y, Jouravleva EV, Anisimov MA, Yu YB
Abstract
The need for quality control during the manufacturing and distribution of biopharmaceuticals is becoming increasingly necessary. At present, detecting drug degradation through the monitoring of active factor aggregation is accomplished through "invasive" techniques, such as...
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Journal club
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09-08-2015 11:26 PM
[NMR paper] Perspectives for sensitivity enhancement in proton-detected solid-state NMR of highly deuterated proteins by preserving water magnetization.
Perspectives for sensitivity enhancement in proton-detected solid-state NMR of highly deuterated proteins by preserving water magnetization.
Related Articles Perspectives for sensitivity enhancement in proton-detected solid-state NMR of highly deuterated proteins by preserving water magnetization.
J Biomol NMR. 2015 Jan 30;
Authors: Chevelkov V, Xiang S, Giller K, Becker S, Lange A, Reif B
Abstract
In this work, we show how the water flip-back approach that is widely employed in solution-state NMR can be adapted to...
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01-31-2015 04:16 PM
Perspectives for sensitivity enhancement in proton-detected solid-state NMR of highly deuterated proteins by preserving water magnetization
Perspectives for sensitivity enhancement in proton-detected solid-state NMR of highly deuterated proteins by preserving water magnetization
Abstract
In this work, we show how the water flip-back approach that is widely employed in solution-state NMR can be adapted to proton-detected MAS solid-state NMR of highly deuterated proteins. The scheme allows to enhance the sensitivity of the experiment by decreasing the recovery time of the proton longitudinal magnetization. The method relies on polarization transfer from non-saturated water to the protein...
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Journal club
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01-30-2015 12:15 PM
Solid-state NMR analysis of membrane proteins and protein aggregates by proton detected spectroscopy
Solid-state NMR analysis of membrane proteins and protein aggregates by proton detected spectroscopy
Abstract Solid-state NMR has emerged as an important tool for structural biology and chemistry, capable of solving atomic-resolution structures for proteins in membrane-bound and aggregated states. Proton detection methods have been recently realized under fast magic-angle spinning conditions, providing large sensitivity enhancements for efficient examination of uniformly labeled proteins. The first and often most challenging step of protein structure determination by NMR is the...