Tomasz Ratajczyk – @TRatajczykonX
Under specific conditions, orthohydrogen generated from parahydrogen can appear to have a partially negative 1H-NMR line (PNL). We present that in some solvents, PNL appears with a positive-negative pattern, while in others, PNL has a negative-positive pattern. The modulation of PNL in a mixture of various solvents will be discussed.
Madhu Basetti – @mbasetti
We are an imaging core group working in cancer research with preclinical imaging modalities for early detection and prognosis of cancer.
Michael Tayler – @NMRduino / @mcdtayler
NMRduino is a sub-MHz NMR spectrometer designed unsparingly for minimum complexity, providing low-entry-barrier-NMR for beginners and those who wish to build custom hardware. Utility ranges from exploration of basic NMR concepts such as phase cycling and coherence selection to advanced experimental control including low-frequency, low-field parahydrogen-induced hyperpolarization and spin decoupling.
Charlotte Bocquelet – @Charlotte_Boc
Dissolution Dynamic Nuclear Polarization provides a 10’000-fold gain in sensitivity but is incompatible with multi-scan experiments. Our ambition is to turn d-DNP into a new version widely compatible with NMR spectroscopy by replenishing hyperpolarization with a compact instrumentation for melt-DNP. Here I present the performances of the 1T polarizer using water-soluble radicals and porous matrices.
Amit Israelstam, Eyal Laster, Orit Nir-Arad – @DNP_EPR
EPR and DNP-enhanced 13C NMR measurements on our home-built dual DNP/EPR spectrometer reveal unknown properties of substitutional nitrogen centers in diamond, which are used to interpret their DNP spectra. High field EPR data is shown indispensable for both diamond defect spin system characterization and DNP spectral analysis.
Ilia B. Moroz – @IliaMoroz92
Host-guest interactions in MOFs are key to their performance in various applications. Solid-state NMR can probe these interactions, however, with limited sensitivity. I will demonstrate how endogenous metal-ion DNP can tackle this challenge, keeping MOF pores empty for guests, and discuss the effect of MOFs mobility and molecular O2 on the DNP efficacy.
Daniel Cheney – @DanielCheney14
Paramagnetic metal ion complexes have been demonstrated as an alternative to traditionally-used biradical polarising agents for DNP, which are typically not commercially available. Based on this, we have introduced Gd(NO3)3 as an easily accessible and inexpensive “off-the-shelf” polarising agent, providing significant sensitivity enhancements for 13C and 15N.
Shebha Anandhi Jegadeesan – @AnandhiJ61993
We use quantum optimal control algorithm to improve XiX DNP. The optimized DNP sequences with initial pulse lengths of 12 and 20 ns gave enhancements 2.4 and 1.6 times greater than XiX DNP, respectively. The challenges and anomaly between the numerical simulations and experiments will be addressed in the poster.
Alexandre Poulhazan – @AlexPoulhazan
Velvet worms are fascinating animals that have a peculiar way to hunt. They eject a translucent liquid, the slime, that quickly forms sticky fibers trapping their preys. In addition to exciting recyclability of this natural glue, this slime has been characterized here by MAS-DNP and NMR, detecting unprecedented phosphonate-rich molecules.
Raj Chaklashiya – @RajChaklashiya
Multielectron Dynamic Nuclear Polarization (ME-DNP) is proposed to be a promising mechanism to achieve NMR signal enhancements due to its low microwave power requirement and scalability to high magnetic field. Here we explore experimentally and theoretically how to achieve this using a designed multielectron geometry of spatially proximal narrow-line radicals.
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