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Hardeep Mehta
Electrical Engineer

Hardeep Mehta is an electrical engineer with the Environmental Molecular Sciences Laboratory's Instrument Development and Automation Laboratory. Mehta has extensive experience developing unique scientific instrumentation capabilities and is responsible for managing the micro-fabrication facility. He has more than 14 years of experience designing magnetic resonance instrumentation. This experience ranges from cryoMAS and cryoMRI probes at Doty Scientific, to in-situ constant flow probe, stripiline detector for sub-nanoliter samples, to high temperature/pressure nuclear magnetic resonance (NMR) probes for in situ and operando studies, and to a biofilm microreactor system for simultaneous electrochemical and nuclear magnetic resonance techniques. He is a recipient of the 2015 R&D 100 Award for the High Pressure NMR technology and has five patents for novel NMR instrumentation development.

Education

  • MS in Electrical Engineering, Michigan Technological University, 2006

  • BE in Electronics Engineering, Institute of Technology and Management, 2004

Awards and Recognition

R&D 100 Award (2015)

Patents

  • Eric D. Walter, Jesse A. Sears, Hardeep S. Mehta, David W. Hoyt. “Snap-in Bushings and Process for High-Pressure and/or High Temperature Magic Angle Spinning Nuclear Magmetic Resonance Spectroscopy.” US Patent: US10550889B2. Licensed to Revolution NMR.

  • Jian Z. Hu, Jesse A. Sears, Hardeep S. Mehta, David W. Hoyt. “A Large Sample Volume Magic Angle Spinning Nuclear Magnetic Resonance Probe for In Situ Investigations with Constant Flow of Reactants.” US Patent: US20140099730 A1.

  • Jian Z. Hu, Ju Feng, Hardeep S. Mehta. “Slow magic angle spinning Nuclear Magnetic Resonance device and process for Metabolomics profiling of tissues and biofluids.” US Patent:US20130257432 A1.

  • Mark C. Butler, Ying Chen, Hardeep S. Mehta, Nancy M. Washton, Karl T. Mueller, Eric D. Walter. “Nuclear Magnetic Resonance Microprobe Detectors and Methods for Detection of Low-Volume Samples.” US Patent Pending: 32072-E.

  • Hardeep S. Mehta, Jesse A. Sears, Eric D. Walter, Nancy Washton, Karl Mueller, Ying Chen. “High temperature NMR MAS probe with optimized temperature gradient across the sample.” US Patent Pending: 31605-E.

Publications

2020

Placencia-Gomez R.E., S.N. Kerisit, H.S. Mehta, O. Qafoku, C.J. Thompson, T.R. Graham, and E.S. Ilton, et al. 2020. "Critical Water Coverage during Forsterite Carbonation in Thin Water Films: Activating Dissolution and Mass Transport." Environmental Science & Technology 54, no. 11:6888-6899. PNNL-SA-151291. doi:10.1021/acs.est.0c00897

2019

Chamas A., L. Qi, H.S. Mehta, J.A. Sears, S.L. Scott, E.D. Walter, and D.W. Hoyt. 2019. "High Temperature/Pressure MAS-NMR for the Study of Dynamic Processes in Mixed Phase Systems." Magnetic Resonance Imaging 56. PNNL-SA-138048. doi:10.1016/j.mri.2018.09.026

Mehdi B.L., A. Stevens, L. Kovarik, N. Jiang, H.S. Mehta, A.V. Liyu, and S.M. Reehl, et al. 2019. "Controlling the Spatio-Temporal Dose Distribution During STEM Imaging by Subsampled Acquisition: In-Situ Observations of Kinetic Processes in Liquids." Applied Physics Letters 115, no. 6:Article Number 063102. PNNL-SA-145156. doi:10.1063/1.5096595

Mehta H.S., Y. Chen, J.A. Sears, E.D. Walter, M. Campos, J. Kothandaraman, and D.J. Heldebrant, et al. 2019. "A Novel High-Temperature MAS Probe with Optimized Temperature Gradient across Sample Rotor for In-situ Monitoring of High-Temperature High-Pressure Chemical Reactions." Solid State Nuclear Magnetic Resonance 102. PNNL-SA-143153. doi:10.1016/j.ssnmr.2019.06.003

2018

Moser T.H., H.S. Mehta, C. Park, R.T. Kelly, T. Shokuhfar, and J.E. Evans. 2018. "The role of electron irradiation history in liquid cell transmission electron microscopy." Science Advances 4, no. 4:eaaq1202. PNNL-SA-120688. doi:10.1126/sciadv.aaq1202

Walter E.D., L. Qi, A. Chamas, H.S. Mehta, J.A. Sears, S.L. Scott, and D.W. Hoyt. 2018. "Operando MAS NMR Reaction Studies at High Temperatures and Pressures." Journal of Physical Chemistry C 122, no. 15:8209-8215. PNNL-SA-130852. doi:10.1021/acs.jpcc.7b11442

2017

Butler M., H.S. Mehta, Y. Chen, P.N. Reardon, R.S. Renslow, M. Khbeis, and D. Irish, et al. 2017. "Toward high-resolution NMR spectroscopy of microscopic liquid samples." Physical Chemistry Chemical Physics. PCCP 19, no. 22:14256-14261. PNNL-SA-126952. doi:10.1039/c7cp01933e

Chang C., Q. Zhou, M. Oostrom, T. Kneafsey, and H.S. Mehta. 2017. "Pore-scale Supercritical CO2 Dissolution and Mass Transfer under Drainage Conditions." Advances in Water Resources 100. PNNL-SA-122892. doi:10.1016/j.advwatres.2016.12.003

Chen, Y., H. S. Mehta, M. C. Butler, E. D. Walter, P. N. Reardon, R. S. Renslow, K. T. Mueller, and N. M. Washton. 2017. “High-Resolution Microstrip NMR Detectors for Subnanoliter Samples.” Physical Chemistry Chemical Physics 19 (41): 28163-28174. https://doi.org/10.1039/c7cp03933f.

Du Y., C. Li, K.L. Zhang, M.E. McBriarty, S.R. Spurgeon, H.S. Mehta, and D. Wu, et al. 2017. "An all-perovskite p-n junction based on transparent conducting p-La1-xSrxCrO3 epitaxial layers." Applied Physics Letters 111, no. 6:063501. PNNL-SA-124623. doi:10.1063/1.4997410

2015

Mehdi B.L., J. Qian, E. Nasybulin, C. Park, D.A. Welch, R. Faller, and H.S. Mehta, et al. 2015. "Observation and Quantification of Nanoscale Processes in Lithium Batteries by Operando Electrochemical (S)TEM." Nano Letters 15, no. 3:2168-2176. PNNL-SA-107504. doi:10.1021/acs.nanolett.5b00175

Mehdi B.L., J. Qian, E. Nasybulin, D.A. Welch, C. Park, R. Faller, and H.S. Mehta, et al. 2015. "Quantification of Electrochemical Nanoscale Processes in Lithium Batteries By OperandoEC-(S)TEM." In ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV, July 26-31, 2015, Glasgow, Scotland, MA2015-03, Abstract No. 432. Pennington, New Jersey:The Electrochemical Society. PNNL-SA-111760.

2014

Renslow R.S., J.T. Babauta, P.D. Majors, H.S. Mehta, R. Ewing, T. Ewing, and K.T. Mueller, et al. 2014. "A biofilm microreactor system for simultaneous electrochemical and nuclear magnetic resonance techniques." Water Science and Technology 69, no. 5:966-973. PNNL-SA-94214. doi:10.2166/wst.2013.802

2012

Hu J.Z., J.A. Sears, H.S. Mehta, J.J. Ford, J. Kwak, K. Zhu, and Y. Wang, et al. 2012. "A Large Sample Volume Magic Angle Spinning Nuclear Magnetic Resonance Probe for In-Situ Investigations with Constant Flow of Reactants." Physical Chemistry Chemical Physics. PCCP 14, no. 7:2137-2143. PNNL-SA-82533. doi:10.1039/c1cp22692d

Renslow, R., P. Majors, J. Babauta, A. Dohnalkova, H. Mehta, and H. Beyenal. 2012. “Integration of Electrochemical Methods with Magnetic Resonance and Electron Microscopies for the Study of Geobacter sulfurreducens Biofilms.” Microscopy and Microanalysis 18: 14-15. https://doi.org/10.1017/S1431927612001924.