Publications

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2020

  1. Yong Du, Ranjan Behera, Raghu V. Maligal-Ganesh, Minda Chen, Eduard Y. Chekmenev, Wenyu Huang, and Clifford R. Bowers, Cyclopropane Hydrogenation vs. Isomerization over Pt and Pt-Sn Intermetallic Nanoparticle Catalysts: A Parahydrogen Spin Labeling Study, J. Phys. Chem. C. (2020).
  2. Yuchen Pei, Minda Chen, Xiaoliang Zhong, Tommy Yunpu Zhao, Maria-Jose Ferrer, Raghu V. Maligal-Ganesh,  Tao Ma, Biying Zhang, Zhiyuan Qi, Lin Zhou, Clifford R. Bowers, Cong Liu, Wenyu Huang, Pairwise semi-hydrogenation of alkyne to cis-alkene on platinum-tin intermetallic compounds, Nanoscale, (2020).

    2019

  3. Ammon J Sindt, Baillie A DeHaven, Dustin W Goodlett, Johannes O Hartel, Pooja J Ayare, Yong Du, Mark D Smith, Anil K Mehta, Alexander M Brugh, Malcolm DE Forbes, Clifford R Bowers, Aaron K Vannucci, Linda S Shimizu, Guest Inclusion Modulates Concentration and Persistence of Photogenerated Radicals in Assembled Triphenylamine Macrocycles, Journal of the American Chemical Society, 142 (1) 502-511 (2019).
    Abstract Image
  4. Evan Wenbo Zhao, Raghu Maligal-Ganesh, Frederic Mentink-Vigier, Tommy Yunpu Zhao, Yong Du, Yuchen Pei, Wenyu Huang, Clifford Russell Bowers, Atomic-Scale Structure of Mesoporous Silica-Encapsulated Pt and PtSn Nanoparticles Revealed by Dynamic Nuclear Polarization-Enhanced 29Si MAS NMR …, 123 (12) 7299-7307 (2019).

    Abstract Image

  5. Ammon J Sindt, Mark D Smith, Samuel Berens, Sergey Vasenkov, Clifford R Bowers, Linda S Shimizu, Single-crystal-to-single-crystal guest exchange in columnar assembled brominated triphenylamine bis-urea macrocycles, Chemical Communications, 55 (39) 5619-5622 (2019).
    image file: c9cc01725a-f1.tif
  6. Clifford R Bowers, Sergey Vasenkov, The Fourteenth International Bologna Conference on Magnetic Resonance in Porous Media (MRPM14), Magnetic Resonance Imaging, 56, 1 (2019).

    2018

  7. Akshita R Dutta, Poorvajan Sekar, Muslim Dvoyashkin, Clifford Bowers, Kirk J Ziegler, Sergey Vasenkov, Possible role of molecular clustering in single-file diffusion of mixed and pure gases in dipeptide nanochannels, Microporous and Mesoporous Materials, 269, 83-87 (2018).
  8. Jan‐Bernd Hövener, Andrey N Pravdivtsev, Bryce Kidd, C Russell Bowers, Stefan Glöggler, Kirill V Kovtunov, Markus Plaumann, Rachel Katz‐Brull, Kai Buckenmaier, Alexej Jerschow, Francesca Reineri, Thomas Theis, Roman V Shchepin, Shawn Wagner, Pratip Bhattacharya, Niki M Zacharias, Eduard Y Chekmenev, Parahydrogen‐Based Hyperpolarization for Biomedicine, Angewandte Chemie International Edition, 57 (35) (2018).

  9. Evan Wenbo Zhao, Raghu Maligal-Ganesh, Yong Du, Tommy Yunpu Zhao, James Collins, Tao Ma, Lin Zhou, Tian-Wei Goh, Wenyu Huang, Clifford R Bowers, Surface-mediated hyperpolarization of liquid water from parahydrogen, Chem, 4 (6), 1387-1403 (2018).


    2017

  10. Matthew M Willmering, Erika L Sesti, Sophia E Hayes, Ryan M Wood, Clifford R Bowers, Sunil K Thapa, Christopher J Stanton, Arneil P Reyes, Philip Kuhns, Stephen McGill, Probing the magnetic field dependence of the light hole transition in GaAs/AlGaAs quantum wells using optically pumped NMR, Physical Review B 97 (7), 075303 (2017).
  11. Akshita R Dutta, Poorvajan Sekar, Muslim Dvoyashkin, Clifford Bowers, Kirk J Ziegler, Sergey Vasenkov, Possible role of molecular clustering in single-file diffusion of mixed and pure gases in dipeptide nanochannels, Microporous and Mesoporous Materials (2017), https://doi.org/10.1016/j.micromeso.2017.05.025
  12. B. A. DeHaven, J. T. Tokarski, A. A. Korous, F. Mentink-Vigier, T. M. Makris, A. M. Brugh, M.D. E. Forbes, J. van Tol, C. R. Bowers, and L. S. Shimizu, Persistent Radicals of Self-assembled Benzophenone bis-urea Macrocycles: Characterization and Application as a Polarizing Agent for Solid-state DNP MAS Spectroscopy, Chemistry – A European Journal, (2017) http://doi.org/10.1002/chem.201701705.

  13. Evan W. Zhao, Raghu Maligal-Ganesh, Chaoxian Xiao, Tian-Wei Goh, Zhiyuan Qi, Yuchen Pei, Helena E. Hagelin-Weaver, Wenyu Huang, and Clifford R. Bowers, “Silica-Encapsulated Pt-Sn Intermetallic Nanoparticles: A Robust Catalytic Platform for Parahydrogen Induced Polarization of Gases and Liquids,” Angewandte Chemie International Edition (2017), http://doi.org/10.1002/anie.201701314.
    2016
  14. Wood, R.M.; Tokarski III, J.T.; McCarthy, L.A.; Stanton, C.J; Bowers, C.R., “Characterization of Elastic Interactions in GaAs/Si Composites by Optically Pumped Nuclear Magnetic Resonance,” Journal of Applied Physics, 120, 085104 (2016) http://dx.doi.org/10.1063/1.4961427.
  15. Dutta , A.; Sekar, P.; Dvoyashkin, M.; Bowers, C.R.; Ziegler, K.; Vasenkov, S., “Single-File Diffusion of Gas Mixtures in L-Ala-L-Val Nanochannels: High Field Diffusion NMR Study,” Journal of Physical Chemistry C, (2016) http://doi.org/10.1021/acs.jpcc.6b03031.
  16. Zhao,E.W.; Xin, Y.; Hagelin-Weaver, H.; Bowers, C.R., “Facet-Dependent Parahydrogen Induced Polarization: Semihydrogenation of Propyne over CeO2 Nano-Cubes, Rods and Octahedra,” ChemCatChem, http://dx.doi.org/10.1002/cctc.201600270. Article highlighted in ChemistryViews.TOCimage2
  17. Caire da Silva, L.; Bowers, C.R.; Graf, R.; Wagener, K.B., Molecular Motion of the Junction Points in Model Networks Prepared by Acyclic Triene Metathesis, Macromolecular Rapid Communications, 2016, 37, 527-531. http://doi.org/10.1002/marc.201500642.

  18. Zhao, E.; Zheng, H.; Ludden, K.; Xin, Y.; Hagelin-Weaver, H.E.; Bowers, C.R., Strong Metal-Support Interactions Enhance the Pairwise Selectivity of Parahydrogen Addition over Ir/TiO2, ACS Catalysis, 2016, 6, 974-978. http://doi.org/10.1021/acscatal.5b02632.TOC5b2015
  19. ​Lucas Caire da Silva, Robert Graf, Clifford R. Bowers, and Kenneth B. Wagener, Branch-Induced Heterogeneous Chain Motion in Precision Polyolefins, Macromolecules, 2015, 48 (24), 8858–8866. http://doi.org/10.1021/acs.macromol.5b01882.

  20. Zhou, R.; Cheng, W.; Neal, L. M.; Zhao, E. W.; Zheng, H. B.; Hagelin-Weaver, H. E., and Bowers, C. R., Parahydrogen Enhanced NMR Reveals Correlations in Selective Hydrogenation of Triple Bonds over Supported Pt Catalyst, Physical Chemistry Chemical Physics, 2015, http://doi.org/10.1039/C5CP04223B.
  21. Zhao, E.W.; Zheng, H.; Zhou, R.; Hagelin-Weaver, H.E.; Bowers, Shaped Ceria Nanocrystals Catalyze Efficient and Selective Parahydrogen Enhanced Polarization, 2015, Angewandte Chemie International Edition, http://doi.org/10.1002/anie.201506045.
  22. Dutta, A.R.; Sekar, P.; Dvoyashkin, M.; Bowers, C.R. Ziegler, K.J.; Vasenkov, S., Relationship between Single-File Diffusion of Mixed and Pure Gases in Dipeptide Nanochannels by High Field Diffusion NMR, Chemical Communications, 2015, 51(69), 13346-13349, http://doi.org/10.1039/c5cc04960a.


  23. Bowers, C. R.; Dvoyashkin, M.; Salpage, S. R.; Akel, C. D.; Bhase, H.; Geer, M. F.; Shimizu, L. S., Crystalline Bis-Urea Nanochannel Architectures Tailored for Single-File Diffusion Studies, ACS Nano 2015, 9 (6) 6343-6353, http://doi.org/10.1021/acsnano.5b01895.

  24. Minkara, M. S.; Weaver, M. N.; Gorske, J.; Bowers, C. R.; Merz, K. M., Implementation of Protocols To Enable Doctoral Training in Physical and Computational Chemistry of a Blind Graduate Student. Journal of Chemical Education 2015, 92 (8), 1280-1283. http://doi.org/10.1021/ed5009552.

  25. Bowers, C. R.; Dvoyashkin, M.; Salpage, S. R.; Akel, C. D.; Bhase, H.; Geer, M. F.; Shimizu, L. S., Squeezing Xenon into Phenylether bis-Urea Nanochannels. Canadian Journal of Chemistry 2015, http://doi.org/10.1139/cjc-2015-0152.

  26. Bowers, C. R., Hyperpolarized Xe-129 NMR Characterization of Single-File Diffusion in Nanotubes. The Royal Society of Chemistry Publishing: Cambridge, 2015; Vol. 4, p 200-233, http://doi.org/10.1039/9781782628378.

  27. Zhou, R. H.; Zhao, E. W.; Cheng, W.; Neal, L. M.; Zheng, H. B.; 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, 137 (5), 1938-1946, http://doi.org/10.1021/Ja511476n.

    2014

  28. Wood, R. M.; Saha, D.; McCarthy, L. A.; Tokarski, J. T.; Sanders, G. D.; Kuhns, P. L.; McGill, S. A.; Reyes, A. P.; Reno, J. L.; Stanton, C. J.; Bowers, C. R., 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 (15), http://doi.org/10.1103/Physrevb.90.155317.
  29. Saha, D.; Wood, R. M.; Tokarski, J. T.; McCarthy, L. A.; Bowers, C. R.; Sesti, E. L.; Hayes, S. E.; Kuhns, P. L.; McGill, S. A.; Reyes, A. R., Modeling optically pumped NMR and spin polarization in GaAs/AlGaAs quantum wells. SPIE NanoScience+ Engineering 2014, 9167, 91670N-91670N-8, http://doi.org/10.1117/12.2061101.
  30. Jakobsen, H. J.; Bildsoe, H.; Beekman, M.; Stefanoski, S.; Nolas, G. S.; Bowers, C. R., Low-Temperature Na-23 MAS NMR Reveals Dynamic Effects and Compositions for the Large and Small Channels in the Zeolite-Like Ge-Framework of Na1-xGe3+Z Materials. J Phys Chem C 2014, 118 (49), 28890-28897, http://doi.org/10.1021/jp509978j
  31. Dvoyashkin, M.; Bhase, H.; Mirnazari, N.; Vasenkov, S.; Bowers, C. R., Single-File Nanochannel Persistence Lengths from NMR. Analytical Chemistry 2014, 86 (4), 2200-2204, http://doi.org/10.1021/Ac403868t.


    2013

  32. Keenan, C. D.; Herling, M. M.; Siegel, R.; Petzold, N.; Bowers, C. R.; Rossler, E. A.; Breu, J.; Senker, J., Porosity of Pillared Clays Studied by Hyperpolarized Xe-129 NMR Spectroscopy and Xe Adsorption Isotherms. Langmuir 2013, 29 (2), 643-652, http://doi.org/10.1021/La304502r.
  33. Glass, K.; Ito, S.; Wilby, P. R.; Sota, T.; Nakamura, A.; Bowers, C. R.; Miller, K. E.; Dutta, S.; Summons, R. E.; Briggs, D. E. G.; Wakamatsu, K.; Simon, J. D., Impact of diagenesis and maturation on the survival of eumelanin in the fossil record. Org Geochem 2013, 64, 29-37, http://doi.org/10.1016/j.orggeochem.2013.09.002.
  34. Dvoyashkin, M.; Wang, A. P.; 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 (19), 3263-3267, http://doi.org/10.1021/Jz4016712.
  35. Dvoyashkin, M.; Wang, A.; Katihar, A.; Zang, J.; Yucelen, G. I.; Nair, S.; Sholl, D. S.; Bowers, C. R.; Vasenkov, S., Signatures of normal and anomalous diffusion in nanotube systems by NMR. Microporous and Mesoporous Materials 2013, 178, 119-122, http://doi.org/10.1016/j.micromeso.2013.02.031.
  36. 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 (49), 1-2.

    2012

  37. Glass, K.; Ito, S.; Wilby, P. R.; Sota, T.; Nakamura, A.; Bowers, C. R.; Vinther, J.; Dutta, S.; Summons, R.; Briggs, D. E. G.; Wakamatsu, K.; Simon, J. D., Direct chemical evidence for eumelanin pigment from the Jurassic period. P Natl Acad Sci USA 2012, 109 (26), 10218-10223, http://doi.org/10.1073/pnas.1118448109.

     

  38. 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. J Phys Chem C 2012, 116 (40), 21350-21355, http://doi.org/10.1021/Jp3054247.

  39. Bowers, C. R.; Wei, Y. 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 (13), 2633-2642, http://doi.org/10.1016/j.polymer.2012.03.055.

    2011

  40. Phadke, S. R.; Bowers, C. R.; Wachsman, E. D.; Nino, J. C., Proton conduction in acceptor doped SnP2O7. Solid State Ionics 2011, 183 (1), 26-31, http://doi.org/10.1016/j.ssi.2010.12.011.

  41. 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.

  42. Bowers, C.; Cheng, C.; Stamatatos, T.; Christou, G.; Fantazzini, P.; Bortolotti, V.; Karger, J.; Galvosas, P., Hyperpolarized NMR in Single-File Nanotubes. AIP Conference Proceedings-American Institute of Physics 2011, 1330 (1), 43. http://doi.org/10.1063/1.3562229

    2010

  43. Cheng, C. Y.; Stamatatos, T. C.; Christou, G.; Bowers, C. R., Molecular Wheels as Nanoporous Materials: Differing Modes of Gas Diffusion through Ga-10 and Ga-18 Wheels Probed by Hyperpolarized Xe-129 NMR Spectroscopy. Journal of the American Chemical Society 2010, 132 (15), 5387-5393, http://doi.org/10.1021/Ja908327w.


  44. Bowers, C. R.; Gusev, G. M.; Jaroszynski, J.; Reno, J. L.; Simmons, J. A., Resistively detected NMR of the nu=1 quantum Hall state: A tilted magnetic field study. Physical Review B 2010, 81 (7), http://doi.org/10.1103/Physrevb.81.073301, re-published in Virtual Journal of Nanoscale Science & Technology 2010, 21.

  45. Beekman, M.; Stefanoski, S.; Wong-Ng, W.; Kaduk, J. A.; Huang, Q.; Reeg, C.; Bowers, C. R.; Nolas, G. S., Structure and thermal conductivity of Na1-xGe3+z. Journal of Solid State Chemistry 2010, 183 (6), 1272-1277, http://doi.org/10.1016/j.jssc.2010.03.035.

    1986-2010

  46. Wei, Y. Y.; Graf, R.; Sworen, J. C.; Cheng, C. Y.; Bowers, C. R.; Wagener, K. B.; Spiess, H. W., Local and Collective Motions in Precise Polyolefins with Alkyl Branches: A Combination of H-2 and C-13 Solid-State NMR Spectroscopy. Angew Chem Int Edit 2009, 48 (25), 4617-4620, http://doi.org/10.1002/anie.200900377.



  47. Wei, Y.; Sworen, J. C.; Cheng, C.-Y.; Bowers, C. R.; Wagener, K. B., Polymer Dynamics in a Precisely Displaced Deuterated-Methyl Branch Polyethylene: A Prelminary 2H NMR Study. Polymer Preprints 2008, 49 (1), 72.

  48. Cheng, C. Y.; Pfeilsticker, J.; Bowers, C. R., Dramatic enhancement of hyperpolarized xenon-129 2D-NMR exchange cross-peak signals in nanotubes by interruption of the gas flow. Journal of the American Chemical Society 2008, 130 (8), 2390-2391, http://doi.org/10.1021/Ja078031i.


  49. Cheng, C. Y.; Bowers, C. R., Observation of single-file diffusion in dipeptide nanotubes by continuous-flow hyperpolarized xenon-129 NMR spectroscopy. Chemphyschem 2007, 8 (14), 2077-2081, http://doi.org/10.1002/cphc.200700336.

  50. Cheng, C. Y.; Bowers, C. R., Direct observation of atoms entering and exiting L-Alanyl-L-valine nanotubes by hyperpolarized xenon-129 NMR. Journal of the American Chemical Society 2007, 129 (45), 13997-14002, http://doi.org/10.1021/Ja074563n
  51. CR Bowers, “Sensitivity Enhancement Utilizing Parahydrogen,” Encyclopedia of Nuclear Magnetic Resonance: Supplementary Volume, 9, pages 750-770, David M. Grant and Robin K. Harris (Ed.), John Wiley and Sons, Ltd., Chichester, West Sussex, England, ISBN 0 0471 49082 2 (2002); re-published online in eMagRes, John Wiley & Sons, Ltd: 2007, http://doi.org/10.1002/9780470034590.emrstm0489

  52. Olshanetsky, E.; Caldwell, J. D.; Kovalev, A. E.; Bowers, C. R.; Simmons, J. A.; Reno, J. L., Electron-nuclear double resonance and dynamic nuclear polarization in GaAs in the regime of the quantum Hall effect. Physica B 2006, 373 (2), 182-193, http://doi.org/10.1016/j.physb.2005.11.050.

  53. Bowers, C. R.; Caldwell, J. D.; Gusev, G.; Kovalev, A. E.; Olshanetsky, E.; Reno, J. L.; Simmons, J. A.; Vitkalov, S. A., Dynamic nuclear polarization and nuclear magnetic resonance in the vicinity of edge states of a 2DES in GaAs quantum wells. Solid State Nuclear Magnetic Resonance 2006, 29 (1-3), 52-65, http://doi.org/10.1016/j.ssnmr.2005.08.011.

  54. Prati, E.; Fanciulli, M.; Kovalev, A.; Caldwell, J. D.; Bowers, C. R.; Capotondi, F.; Biasiol, G.; Sorba, L., Magnetoresistively detected electron spin resonance in low-density two-dimensional electron gas in GaAs-AlGaAs single quantum wells. Ieee T Nanotechnol 2005, 4 (1), 100-105, http://doi.org/10.1109/Tnano.2004.840185.

  55. Patel, A.; Bowers, C. R., Two‐Dimensional Nuclear Magnetic Resonance in Optically Pumped Semiconductors. AIP Conference Proceedings 2005, 772 (1), 1455-1456, http://doi.org/10.1063/1.1994663.

  56. Liu, Y.; Hong, L.; Wakamatsu, K.; Ito, S.; Adhyaru, B. B.; Cheng, C. Y.; Bowers, C. R.; Simon, J. D., Comparisons of the structural and chemical properties of melanosomes isolated from retinal pigment epithelium, iris and choroid of newborn and mature bovine eyes. Photochemistry and Photobiology 2005, 81 (3), 510-516, http://doi.org/10.1562/2004-10-19-Ra-345.1.

  57. Lee, J. S.; Butt, D. P.; Baney, R. H.; Bowers, C. R.; Tulenko, J. S., Synthesis and pyrolysis of novel polysilazane to SiBCN ceramic. Journal of non-crystalline solids 2005, 351 (37-39), 2995-3005, http://doi.org/10.1016/j.jnoncrysol.2005.06.038.100

  58. Caldwell, J. D.; Kovalev, A. E.; Olshanetsky, E.; Bowers, C. R.; Reno, J. L.; Simmons, J. A., MD‐ENDOR Spectroscopy in a Two‐Dimensional Electron System in the Regime of the Quantum Hall Effect. AIP Conference Proceedings 2005, 772 (1), 519-520, http://doi.org/10.1063/1.1994210.

  59. Caldwell, J. D.; Bowers, C. R.; Gusev, G. M., Electron spin resonance in a wide parabolic quantum well. Physical Review B 2005, 72 (11), http://doi.org/10.1103/Physrevb.72.115339.

  60. Caldwell, J.; Bowers, C.; Gusev, G., Electron spin resonance in a wide parabolic quantum well. Journal of Nanoscale Science and Technology 2005, 12 (11), 15, http://doi.org/10.1103/Physrevb.72.115339.

  61. Patel, A.; Bowers, C. R., Two-dimensional nuclear magnetic resonance spectroscopy in optically pumped semiconductors. Chemical Physics Letters 2004, 397 (1-3), 96-100, http://doi.org/10.1016/j.cplett.2004.08.055.100

  62. Kovalev, A. E.; Zvyagin, S. A.; Bowers, C. R.; Reno, J. L.; Simmons, J. A., Observation of a node in the quantum oscillations induced by microwave radiation. Solid State Communications 2004, 130 (6), 379-381, http://doi.org/10.1016/j.ssc.2004.02.028.

  63. Jagadeesh, B.; Prabhakar, A.; Rao, M. H. V. R.; Murty, C. V. S.; Pisipati, V. G. K. M.; Kunwar, A. C.; Bowers, C. R., Probing the anisotropic environment of thermotropic liquid crystals using Xe-129 NMR spectroscopy. Journal of Physical Chemistry B 2004, 108 (31), 11272-11279, http://doi.org/10.1021/Jp037745m.100

  64. Olshanetsky, E.; Pilla, M.; Caldwell, J. D.; Bowers, C. R.; Simmons, J. A.; Reno, J. L., Temperature dependence of electrically detected ESR at filling factor v=1 in a 2DEG. Physica E 2003, 17 (1-4), 320-321, http://doi.org/10.1016/S1386-9477(02)00823-8.

  65. Olshanetsky, E.; Caldwell, J. D.; Pilla, M.; Liu, S. C.; Bowers, C. R.; Simmons, J. A.; Reno, J. L., Temperature dependence and mechanism of electrically detected ESR at the v=1 filling factor of a two-dimensional electron system. Physical Review B 2003, 67 (16), http://doi.org/10.1103/Physrevb.67.165325.

  66. Adhyaru, B. B.; Akhmedov, N. G.; Katritzky, A. R.; Bowers, C. R., Solid-state cross-polarization magic angle spinning C-13 and N-15 NMR characterization of Sepia melanin, Sepia melanin free acid and Human hair melanin in comparison with several model compounds. Magnetic Resonance in Chemistry 2003, 41 (6), 466-474, http://doi.org/10.1002/Mrc.1193.

  67. Zook, A. L.; Adhyaru, B. B.; Bowers, C. R., High capacity production of > 65{5b0f7963c1efafdeafe15b37fe18bd01e1e8e8396d4ce0dd4d48b30d3a9f1e95} spin polarized xenon-129 for NMR spectroscopy and imaging. Journal of Magnetic Resonance 2002, 159 (2), 175-182, http://doi.org/10.1016/S1090-7807(02)00030-7.

  68. Storhaug, V. J.; Liebig, F.; Bowers, C. R., Spin exchange optical pumping enhanced Xe-129 NMR spectroscopy of SF6/Xe and acetone-d(6)/Xe mixed type-II clathrate hydrates. Journal of Physical Chemistry B 2002, 106 (11), 2884-2891, http://doi.org/10.1021/Jp0155260.

  69. Carson, P. J.; Bowers, C. R.; Weitekamp, D. P., The PASADENA effect at a solid surface: High-sensitivity nuclear magnetic resonance of hydrogen chemisorption. Journal of the American Chemical Society 2001, 123 (47), 11821-11822, http://doi.org/10.1021/Ja010572z.

  70. Vitkalov, S. A.; Bowers, C. R.; Simmons, J. A.; Reno, J. L., ESR detection of optical dynamic nuclear polarization in GaAs/AlxGa1-xAs quantum wells at unity filling factor in the quantum Hall effect. Physical Review B 2000, 61 (8), 5447-5451, http://doi.org/10.1103/PhysRevB.61.5447.

  71. Lin, Y. Y.; Ahn, S.; Murali, N.; Brey, W.; Bowers, C. R.; Warren, W. S., High-resolution, > 1 GHz NMR in unstable magnetic fields. Physical Review Letters 2000, 85 (17), 3732-3735, http://doi.org/10.1103/PhysRevLett.85.3732.

  72. Vitkalov, S. A.; Bowers, C. R.; Simmons, J. A.; Reno, J. L., Effect of the nuclear hyperfine field on the 2D electron conductivity in the quantum Hall regime. Jetp Lett+ 1999, 69 (1), 64-70, http://doi.org/10.1134/1.567985.

  73. Vitkalov, S. A.; Bowers, C. R.; Simmons, J. A.; Reno, J. L., Nuclear spin-orientation dependence of magnetoconductance: a new method for measuring the spin of charged excitations in the quantum Hall effect. J Phys-Condens Mat 1999, 11 (37), L407-L414, http://doi.org/10.1088/0953-8984/11/37/101.

  74. Patel, A.; Pasquet, O.; Bharatam, J.; Hughes, E.; Bowers, C. R., Optical dynamic nuclear polarization in InP single crystal: Wavelength and field dependence of NMR enhancement. Physical Review B 1999, 60 (8), R5105-R5108, http://doi.org/10.1103/PhysRevB.60.R5105.

  75. Fanucci, G. E.; Bowers, C. R.; Talham, D. R., Application of solid-state P-31 NMR to the study of Langmuir-Blodgett films. Journal of the American Chemical Society 1999, 121 (5), 1088-1089, http://doi.org/10.1021/Ja982383v.

  76. Bowers, C. R.; Storhaug, V.; Webster, C. E.; Bharatam, J.; Cottone, A.; Gianna, R.; Betsey, K.; Gaffney, B. J., Exploring surfaces and cavities in lipoxygenase and other proteins by hyperpolarized xenon-129 NMR. Journal of the American Chemical Society 1999, 121 (40), 9370-9377, http://doi.org/10.1021/Ja991443+.

  77. Bharatam, J.; Bowers, C. R., Characterization of phase transitions and dynamics in reentrant nematic liquid crystals by xenon-129 nuclear magnetic resonance. Journal of Physical Chemistry B 1999, 103 (13), 2510-2515, http://doi.org/10.1021/Jp983596+.

  78. Briggs, R. W.; Bowers, C. R., The Wallace Brey Symposium. Journal of Magnetic Resonance 1998, 134 (2), 197-198, http://doi.org/10.1006/jmre.1998.1585.
  79. Bowers, C. R.; Weitekamp, D. P., Nuclear magnetic resonance by measuring reaction yield of spin symmetry species. Solid State Nuclear Magnetic Resonance 1998, 11 (1-2), 123-128, http://doi.org/10.1016/S0926-2040(97)00101-X.

  80. Bowers, C. R., Microscopic interpretation of optically pumped NMR signals in GaAs. Solid State Nuclear Magnetic Resonance 1998, 11 (1-2), 11-20, http://doi.org/10.1016/S0926-2040(97)00093-3

  81. Kuhns, P. L.; Kleinhammes, A.; Schmiedel, T.; Moulton, W. G.; Chabrier, P.; Sloan, S.; Hughes, E.; Bowers, C. R., Magnetic-field dependence of the optical Overhauser effect in GaAs. Physical Review B 1997, 55 (12), 7824-7830, http://doi.org/10.1103/PhysRevB.55.7824.

  82. Evans, J. N.; Bowers, C., Biomolecular NMR Spectroscopy. International Journal of Quantum Chemistry 1997, 63 (5), 1023.

  83. Bowers, C. R.; Pietrass, T.; Barash, E.; Pines, A.; Grubbs, R. K.; Alivisatos, A. P., Probing Cds Nanocrystal Surfaces with Laser-Polarized Xenon. J Phys Chem-Us 1994, 98 (38), 9400-9404, http://doi.org/10.1021/J100089a008.

  84. Long, H. W.; Gaede, H. C.; Shore, J.; Reven, L.; Bowers, C. R.; Kritzenberger, J.; Pietrass, T.; Pines, A.; Tang, P.; Reimer, J. A., High-Field Cross-Polarization Nmr from Laser-Polarized Xenon to a Polymer Surface. Journal of the American Chemical Society 1993, 115 (18), 8491-8492, http://doi.org/10.1021/Ja00071a086.

  85. Bowers, C. R.; Long, H. W.; Pietrass, T.; Gaede, H. C.; Pines, A., Cross Polarization from Laser-Polarized Solid Xenon to (Co2)-C-13 by Low-Field Thermal Mixing. Chemical Physics Letters 1993, 205 (2-3), 168-170, http://doi.org/10.1016/0009-2614(93)89223-5.

  86. Bowers, C. R.; Wackerle, G.; Mehring, M., Light-Shift Optical Coherent Averaging in Rubidium Vapors. Physical Review A 1992, 46 (11), 7042-7047, http://doi.org/10.1103/PhysRevA.46.7042.

  87. Bowers, C.; Buratto, S.; Carson, P.; Cho, H.; Hwang, J.; Mueller, L.; Pizarro, P.; Shykind, D.; Weitekamp, D., New Approaches to Ultrasensitive Magnetic Resonance. Proc. SPIE, Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications 1991, 1335 35-50, http://doi.org/10.1117/12.44229.

  88. Bowers, C.; Jones, D.; Kurur, N.; Labinger, J.; Pravica, M.; Weitekamp, D., Symmetrization Postulate and Nuclear Magnetic Resonance of Reacting Systems. Advances in Magnetic Resonance: The Waugh Symposium 1990, 14, 269.

  89. Bowers, C. R.; Weitekamp, D. P., Para-Hydrogen and Synthesis Allow Dramatically Enhanced Nuclear Alignment. Journal of the American Chemical Society 1987, 109 (18), 5541-5542, http://doi.org/10.1021/Ja00252a049.

     

  90. Bowers, C. R.; Weitekamp, D. P., Transformation of Symmetrization Order to Nuclear-Spin Magnetization by Chemical-Reaction and Nuclear-Magnetic-Resonance. Physical Review Letters 1986, 57 (21), 2645-2648, http://doi.org/10.1103/PhysRevLett.57.2645.