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Start Over Author "Roy, Soumya" Journal angewandte chemie international edition
6 results on '"Roy, Soumya"'

2. An Efficient Opal‐Suppressor Tryptophanyl Pair Creates New Routes for Simultaneously Incorporating up to Three Distinct Noncanonical Amino Acids into Proteins in Mammalian Cells

Author

Osgood, Arianna O., primary, Zheng, Yunan, additional, Roy, Soumya Jyoti Singha, additional, Biris, Nikolaos, additional, Hussain, Myer, additional, Loynd, Conor, additional, Jewel, Delilah, additional, Italia, James S., additional, and Chatterjee, Abhishek, additional

Published
2023
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6. A Hyperpolarizable 1H Magnetic Resonance Probe for Signal Detection 15 Minutes after Spin Polarization Storage.

Author

Roy, Soumya S., Norcott, Philip, Rayner, Peter J., Duckett, Simon B., and Green, Gary G. R.

Subjects
*NUCLEAR magnetic resonance spectroscopy, *SPIN polarization, *MAGNETIC resonance imaging, *NUCLEAR spin, *RADIO frequency, *POLARIZATION (Electrochemistry)
Abstract

Nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) are two extremely important techniques with applications ranging from molecular structure determination to human imaging. However, in many cases the applicability of NMR and MRI are limited by inherently poor sensitivity and insufficient nuclear spin lifetime. Here we demonstrate a cost-efficient and fast technique that tackles both issues simultaneously. We use the signal amplification by reversible exchange (SABRE) technique to hyperpolarize the target 1H nuclei and store this polarization in long-lived singlet (LLS) form after suitable radiofrequency (rf) pulses. Compared to the normal scenario, we achieve three orders of signal enhancement and one order of lifetime extension, leading to 1H NMR signal detection 15 minutes after the creation of the detected states. The creation of such hyperpolarized long-lived polarization reflects an important step forward in the pipeline to see such agents used as clinical probes of disease. [ABSTRACT FROM AUTHOR]

Published
2016
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