Parahydrogen-induced polarization at Low Magnetic Field | Dr. James Eills | Session 102

During the 102nd session of the Global NMR Discussion Meetings held on May 20th, 2025, via Zoom, Dr. James Eills from the Forschungszentrum Jülich, Germany, gave a talk on the topic "Parahydrogen-induced polarization at Low Magnetic Field". The recording serves as a tutorial. Find out more about Dr. James Eills' research : https://www.jameseills.com Abstract: Parahydrogen-induced polarization (PHIP) is a hyperpolarization method that can enhance NMR signals by several orders of magnitude. However, parahydrogen itself is NMR silent, so an important step in PHIP experiments is to convert the parahydrogen-derived singlet order into an observable magnetic state. In this educational seminar, I will review different polarization transfer methods in PHIP experiments, with a particular focus on low-magnetic-field approaches. Content of this video : 00:00 - 05:31 Assumed knowledge 05:32 - 07:49 Zeeman spin order spectra 07:50 - 11:39 PASADENA experiment 11:40 - 14:30 PHIP with a 3 spin system 14:31 - 25:42 PHIP with a 2 spin system 25:43 - 35:34 3 spin system at low and ultralow fields 35:35 - 45:20 Observing PHIP polarization transfer in real time 45:21 - 52:15 Preventing loss of singlet polarization 52:16 - 56:04 Field regime comparison for PHIP 56:05 - 1:15:37 Q&A Current organizers: Adrian Draney (Creighton Uni.) Amrit Venkatesh (University of Virginia) Asif Equbal (New York Uni., Abu Dhabi) Blake Wilson (Robert Tycko Lab, NIH) Charlotte Bocquelet (HMRLab, CRMN Lyon) Diganta Sarkar (Alberta Uni.) Julie Buhl (Uni. JKU Linz) Marcel Levien (Emsley Lab, EPFL) Mengshan Ye (Miller Institute, UC Berkeley) Michael Hope (Warwick Uni.) Mouzhe Xie (Arizona State Uni.) Nikita Rao (Indian Institute of Science, Bangalore) Nesreen Elathram (Debelouchina Lab, UCSD) Tamali Nag (Uni. of Lille/Grenoble)