Benchtop NMR signal enhancement of metabolites in urine extract using SABRE
Simon Fleischer, Jing Yang, Kerti Ausmees, Indrek Reile, Neil MacKinnon, Jan Gerrit Korvink, Sören Lehmkuhl

TL;DR
This paper shows how to boost NMR signals of urine metabolites using a technique called SABRE, enabling faster and more sensitive detection with minimal equipment.
Contribution
The novel contribution is demonstrating automated SABRE hyperpolarization for enhanced metabolite detection in urine using a benchtop NMR.
Findings
SABRE hyperpolarization significantly enhances NMR signals of urinary nicotinamide.
Standard addition quantification of nicotinamide was successfully demonstrated.
An automated setup improved sensitivity for multi-scan SABRE experiments.
Abstract
Metabolites in a urine extract are signal-enhanced by SABRE††SABRE: Signal Amplification By Reversible Exchange. hyperpolarization and detected using a benchtop NMR spectrometer. Quantification by standard addition is demonstrated for endogenic urinary nicotinamide (vitamin B3). Even higher sensitivity is achieved in an automated setup for multi-scan SABRE experiments. This hyperpolarization scheme is able to expedite biomarker detection and quantification, while maintaining low infrastructure requirements. SABRE: Signal Amplification By Reversible Exchange. Enhancing NMR signals of urinary metabolites using SABRE hyperpolarization in an automated benchtop-scale setup.
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Taxonomy
TopicsAdvanced NMR Techniques and Applications · Metabolomics and Mass Spectrometry Studies · NMR spectroscopy and applications
