个人简介

Ph.D., California Institute of Technology, 1991

研究领域

Physical

Nuclear Magnetic Resonance, solid state NMR The Bowers research is presently focused on the mechanisms for nuclear spin order enhancement (e.g. hyperpolarization) for magnetic resonance sensitivity enhancement and the application to problems of importance in materials science and biochemical-physics. Areas of recent research activity include the following: (i) adsorption, diffusion and exchange in nanotube materials for gas separations (ii) studies of dynamics, order/disorder and porosity in polymers by solid state NMR (iii) xenon NMR as a probe of anesthetic properties in lipid membrane bilayers (iv) resistively detected NMR studies in the regime of the quantum Hall effect in GaAs Quantum Wells (v) optically pumped NMR studies.

近期论文

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(1) Zhou, R.; Zhao, E. W.; Cheng, W.; Neal, L. M.; Zheng, H.; Quinones, R. E.; Hagelin-Weaver, H. E.; Bowers, C. R., Parahydrogen Induced Polarization by Pairwise Replacement Catalysis on Pt and Ir Nanoparticles, Journal of the American Chemical Society 2015, Just Accepted. Wood, R.; Saha, D.; McCarthy, L.; Tokarski III, J.; Sanders, G.; Kuhns, P.; McGill, S.; Reyes, A.; Reno, J.; Stanton, C., Effects of strain and quantum confinement in optically pumped nuclear magnetic resonance in GaAs: Interpretation guided by spin-dependent band structure calculations, Physical Review B 2014, 90, 155317. Saha, D.; Wood, R.; Tokarski, J.; McCarthy, L.; Bowers, C.; Sesti, E.; Hayes, S.; Kuhns, P.; McGill, S.; Reyes, A. In SPIE NanoScience+ Engineering; International Society for Optics and Photonics: 2014, p 91670N-91670N-8. Jakobsen, H. J.; Bildsøe, H.; Beekman, M.; Stefanoski, S.; Nolas, G. S.; Bowers, C. R., Low-Temperature 23Na MAS NMR Reveals Dynamic Effects and Compositions for the Large and Small Channels in the Zeolite-Like Ge-Framework of Na1-xGe3+ z Materials, The Journal of Physical Chemistry C 2014. Dvoyashkin, M.; Bhase, H.; Mirnazari, N.; Vasenkov, S.; Bowers, C. R., Single-File Nanochannel Persistence Lengths from NMR, Analytical Chemistry 2014, 86, 2200-2204. Bowers, C. In Hyperpolarized Xenon-129 Magnetic Resonance (in press); Meersmann, T., Brunner, E., Eds.; The Royal Society of Chemistry Publishing: Cambridge, 2014. Keenan, C. D.; Herling, M. M.; Siegel, R. e.; Petzold, N.; Bowers, C. R.; Rössler, E. A.; Breu, J.; Senker, J. r., Porosity of Pillared Clays Studied by Hyperpolarized 129Xe NMR Spectroscopy and Xe Adsorption Isotherms, Langmuir 2013, 29, 643-652. Dvoyashkin, M.; Wang, A.; Vasenkov, S.; Bowers, C. R., Xenon in l-Alanyl-l-Valine Nanochannels: A Highly Ideal Molecular Single-File System, Journal of Physical Chemistry Letters 2013, 4, 3263-3267. Dvoyashkin, M.; Wang, A.; Katihar, A.; Zang, J.; Yucelen, G.; Nair, S.; Sholl, D.; Bowers, C.; Vasenkov, S., Signatures of normal and anomalous diffusion in nanotube systems by NMR, Microporous and Mesoporous Materials 2013, 178, 119-122. Dvoyashkin, M.; Wang, A.; Bhase, H.; Vasenkov, S.; Bowers, C. R., Single-file dynamics in nanotubular materials probed by a combination of hyperpolarized tracer exchange and diffusion NMR techniques, Diffusion-Fundamentals 2013, 20, 1-2. Glass, K.; Ito, S.; Wilby, P. R.; Sota, T.; Nakamura, A.; Bowers, C. R.; Vinther, J.; Dutta, S.; Summons, R.; Briggs, D. E., Direct chemical evidence for eumelanin pigment from the Jurassic period, Proceedings of the National Academy of Sciences2012, 109, 10218-10223. Dvoyashkin, M.; Zang, J.; Yucelen, G. I.; Katihar, A.; Nair, S.; Sholl, D. S.; Bowers, C. R.; Vasenkov, S., Diffusion of tetrafluoromethane in single-walled aluminosilicate nanotubes: pulsed field gradient NMR and molecular dynamics simulations, The Journal of Physical Chemistry C 2012, 116, 21350-21355. Bowers, C. R.; Wei, Y.; Aitken, B. S.; Reeg, C. R.; Akel, C. D.; Wagener, K. B., Molecular dynamics in precision deuteriomethyl branched polyethylene from solid-state deuterium NMR, Polymer 2012, 53, 2633-2642. Phadke, S. R.; Bowers, C. R.; Wachsman, E. D.; Nino, J. C., Proton conduction in acceptor doped SnP2O7, Solid State Ionics 2011, 183, 26-31. Dvoyashkin, M.; Wood, R.; Bowers, C.; Mukherjee, S.; Christou, G.; Yucelen, I.; Nair, S.; Katihar, A.; Vasenkov, S., Transport Through Unidimensional Nanochannels: The Potential of Pulsed Field Gradient and Hyperpolarized Tracer Exchange NMR Spectroscopy, Diffusion Fundamentals 2011, 16 1-2. Bowers, C.; Cheng, C.; Stamatatos, T.; Christou, G.; Fantazzini, P.; Bortolotti, V.; Ka¨ rger, J. r.; Galvosas, P., Hyperpolarized NMR in Single-File Nanotubes, AIP Conference Proceedings-American Institute of Physics 2011, 1330, 43. Cheng, C.-Y.; Stamatatos, T. C.; Christou, G.; Bowers, C. R., Molecular wheels as nanoporous materials: differing modes of gas diffusion through Ga10 and Ga18 wheels probed by hyperpolarized 129Xe NMR spectroscopy, Journal of the American Chemical Society 2010, 132, 5387-5393. Bowers, C.; Gusev, G.; Jaroszynski, J.; Reno, J.; Simmons, J., Resistively detected NMR study of the v=1 quantum Hall state: a tilted magnetic field study, Virtual Journal of Nanoscale Science & Technology 2010, 21. Bowers, C.; Gusev, G.; Jaroszynski, J.; Reno, J.; Simmons, J., Resistively detected NMR of the ν= 1 quantum Hall state: A tilted magnetic field study, Physical Review B 2010, 81, 073301. Beekman, M.; Stefanoski, S.; Wong-Ng, W.; Kaduk, J.; Huang, Q.; Reeg, C.; Bowers, C.; Nolas, G., Structure and thermal conductivity of Na< sub> 1−< i> x Ge< sub> 3+< i> z, Journal of Solid State Chemistry 2010, 183, 1272-1277.