51. Park, J. G.; Hudgins, M. N.; Fralick, P.; Shelley, J. T.; Schaller, M. F. Breathing Life into the Boring Billion: Direct Constraints from 1.4 Ga Fluid Inclusions Reveal a Fair Climate and Oxygenated Atmosphere, Proc. Natl. Acad. Sci. U.S.A., 2025, 122 (52), e2513030122.
50. Danischewski, J. L.; You, Y.; Bauer, L.; Riedel, J.; Shelley, J. T. Use of Resonant Acoustic Fields as Atmospheric-Pressure Ion Gates, Anal. Chem., 2025, 97 (5), 2890-2898.
49. You, Y.; Danischewski, J.; Molnar, B.; Riedel, J.; Shelley, J. T. Manipulation of Gaseous Ions with Acoustic Fields at Atmospheric Pressure, J. Am. Chem. Soc., 2024, 146 (21), 14587-14592.
48. Chan, G.C.-Y.; Engelhard, C.; Wiley, J.S.; Shoulds, A.U.; Cooks, R.G.; Hieftje, G.M.; Shelley, J.T. Characterization of a Low-Temperature Plasma (LTP) Ambient Ionization Source Using Temporally Resolved Monochromatic Imaging Spectrometry, Appl. Spectros., 2023, 77 (8), 940-956.
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47. Shelley, J.T., Gary M. Hieftje: 80+ Years of Life, 53+ Years of Spectroscopy Innovation, and Many Lifetimes of Inspiration, Appl. Spectros., 2023, 77 (8), 7933-797.
46. Ashenafi, E.L.; Shelley, J.T.; Mattson, N.S.; Nyman, M.C., Spectral properties and stability of selected carotenoid and chlorophyll compounds in different solvent systems. Food Chem. Adv., 2023, 2, 100178.
45. Jackson, M.; Perrelli, D.; Shelley, J.T.; Donais, M.K., An Archaeometric Investigation into the Former Cataract House Hotel via Elemental Analysis. Spectroscopy, 2022, 37 (11).
44. Ayodeji, I.; Keidel, A.; Perdomo, N.R.; Shelley, J.T.; Evans-Nguyen, T., Differential mobility spectrometry improves uranium isotope ratio measurements on an ion trap mass spectrometer, Int. J. Mass Spectrom. 2022, 472, 116758.
43. Walton, C.L.; Schwartz, A.J.; Shelley, J. T., Effects of Solvent Composition on Ionization and Fragmentation within the Solution-Cathode Glow Discharge, J. Appl. Phys., 2021, 130, 043305.
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42. You, Y.; Song, Y.; Young, M. D.; van der Wielen, M.; Evans-Nguyen, T.; Riedel, J.; Shelley, J. T., Unsupervised Reconstruction of Analyte-Specific Mass Spectra based on Time-Domain Morphology with a Modified Cross-Correlation Approach. Anal. Chem., 2021, 93 (12), 5009–5014. DOI: 10.1021/acs.analchem.0c04396.
41. Badal, S.P.; Farnsworth, P.B.; Chan, G.C.-Y.; Hellinger, J.R.; Shelley, J.T., Optical and Mass-Spectral Characterization of Mixed-Gas Flowing Atmospheric-Pressure Afterglow Sources, Spectrochim. Acta, Part B, 2021, 176, 106043.
40. Pandey, S.; Li, Y.; Young, M.D.; Shelley, J.T.; Mao, H., Direct Evidence of Allosteric Hetero-ligands Binding to DNA G-Quadruplex, Biochemistry, 2020, 59 (37), 3438-3446.
39. Molnar, B.T.; Shelley, J.T., Modern Plasma-Based Desorption/Ionization: From Atoms and Molecules to Chemical Synthesis, Mass Spectrom. Rev., 2021, 40, 609-627.
38. Kuhlmann, C.; Shelley, J.T.; Engelhard, C., Plasma-Based Ambient Desorption/Ionization Mass Spectrometry for the Analysis of Liquid Crystals Employed in Display Devices, J. Am. Soc. Mass. Spectrom., 2019, 30, (10), 2101-2113.
37. You, Y.; Badal, S.P.; Shelley, J.T., Automatic Analyte-Ion Recognition and Background Removal for Ambient Mass-Spectrometric Data Based on Cross Correlation, J. Am. Soc. Mass. Spectrom., 2019, 30, (9), 1720-1732.
36. Ayodeji, I.; Vasquez, T.; Donovan, J.; Song, L.; Donovan, J.; Evans-Nguyen, T.; Badal, S.P.; MacLean, G.M.; Shelley, J. T.; Coupling Flowing Atmospheric Pressure Afterglow (FAPA) with Differential Mobility Spectrometry-Mass Spectrometry (DMS-MS) for rapid analysis of solid metal complexes. Int. J. Mass Spectrom. 2019, 438, 157-165.
35. Yue, Z.; Wang, H.; Bowers, D.; Gao, M.; Stilgenbauer, M.; Shelley, J. T.; Zheng, Y., Nanoparticles of metal–organic cages designed to encapsulate platinum-based anticancer agents, Dalton Trans. 2018, 47, (3), 670-674.
34. Shelley, J. T.; Badal, S.P.; Engelhard, C.; Hayen, H., Ambient desorption/ionization mass spectrometry: evolution from rapid qualitative screening to accurate quantification tool, Anal. Bioanal. Chem., 2018, 410, (17), 4061-4076.
33. Badal, S. P.; Ratcliff, T.D.; Breneman, C.M.; Shelley, J. T., Formation of Pyrylium from Aromatic Systems with a Helium:Oxygen Flowing Atmospheric Pressure Afterglow (FAPA) Plasma Source. J. Am. Soc. Mass Spectrom. 2017, 28, (6), 1013-1020.
32. Schwartz, A. J.; Williams, K. L.; Hieftje, G. M.; Shelley, J. T., Atmospheric-Pressure Solution-Cathode Glow Discharge: A Versatile Ion Source for Atomic and Molecular Mass Spectrometry. Anal. Chim. Acta 2017, 950, 119-128.
31. Schwartz, A. J.; Shelley, J. T.; Walton, C. L.; Williams, K. L.; Hieftje, G. M., Atmospheric-Pressure Ionization and Fragmentation of Peptides by Solution-Cathode Glow Discharge. Chem. Sci. 2016, 7, 6440-6449.
30. Dassanayake, R. S.; Farhath, M. M.; Shelley, J. T.; Basu, S.; Brasch, N. E., Kinetic Studies on the Reaction of Cob(II)alamin with Hypochlorous Acid: Evidence for one electron oxidation of the metal center and corrin ring destruction. J. Inorg. Biochem. 2016, 163, 81-87.
29. Badal, S. P.; Michalak, S. D.; Chan, G. C.-Y.; Shelley, J. T., Tunable Ionization Modes of a Flowing Atmospheric-Pressure Afterglow Ambient Ionization Source. Anal. Chem. 2016, 88, (7), 3494-3503.
28. Tandon, S. S.; Bunge, S. D.; Toth, S. A.; Sanchiz, J.; Thompson, L. K.; Shelley, J. T., Antiferromagnetically Coupled Dimeric Dodecacopper Supramolecular Architectures of Macrocyclic Ligands with a Symmetrical mu(6)-BO33- Central Moiety. Inorg. Chem. 2015, 54 (14), 6873-6884.
27. Dassanayake, R. S.; Shelley, J. T.; Cabelli, D. E.; Brasch, N. E., Pulse Radiolysis and Ultra-High-Performance Liquid Chromatography/High-Resolution Mass Spectrometry Studies on the Reactions of the Carbonate Radical with Vitamin B-12 Derivatives. Chem. Eur. J. 2015, 21 (17), 6409-6419.
26. Albert, A.; Shelley, J.T.; Engelhard, C., Plasma-based ambient desorption/ionization mass spectrometry: state-of-the-art in qualitative and quantitative analysis. Anal. Bioanal. Chem. 2014, 406, 6111 – 6127.
25. Pfeuffer, K.P.; Caldwell, J.; Shelley, J.T.; Ray, S.J.; Hieftje, G.M., Detection of counterfeit electronic components through ambient mass spectrometry and chemometrics. Analyst 2014, 139, 4505 – 4511.
24. Venter, A.R.; Douglass, K.A.; Shelley, J.T.; Hasman, G.; Honarvar, E., Mechanisms of Real-Time, Proximal Sample Processing during Ambient Ionization Mass Spectrometry. Anal. Chem. 2014, 86, (1), 233-249.
23. Hendricks, P. I.; Dalgleish, J. K.; Shelley, J. T.; Roach, T. A.; Ouyang, Z.; Cooks, R. G. et al., Autonomous in Situ Analysis and Real-Time Chemical Detection Using a Backpack Miniature Mass Spectrometer: Concept, Instrumentation Development, and Performance. Anal. Chem. 2014, 56, (6), 2900-2908.
22. Shelley, J. T.; Stindt, A.; Riedel, J.; Engelhard, C., Time-resolved mass-spectral characterization of ion formation from a low-frequency, low-temperature plasma probe ambient ionization source. J. Anal. At. Spectrom. 2014, 29, 359-366.
21. Pfeuffer, K. P.; Schaper, J. N.; Shelley, J. T.; Ray, S. J.; Chan, G. C.-Y.; Hieftje, G. M., Halo-shaped Flowing Atmospheric Pressure Afterglow - a Heavenly New Design for Simplified Sample Introduction and Improved Ionization in Ambient Mass Spectrometry. Anal. Chem., 2013, 85, (15), 7512-7518.
20. Wiley, J. S.; Shelley, J. T.; Cooks, R. G., Handheld Low-Temperature Plasma Probe for Portable “Point-and-Shoot” Ambient Mass Spectrometry. Editor’s Highlight. Anal. Chem., 2013, 85, (14), 6545-6552.
19. Pfeuffer, K. P.; Shelley, J. T.; Ray, S. J.; Hieftje, G. M., Visualization of Mass-Transport and HeatTransfer Phenomena of the FAPA Ambient Ionization Source. J. Anal. At. Spectrom., 2013, 28, 379-387.
18. Dalgleish, J. K.; Wleklinski, M.; Shelley, J. T.; Mulligan, C. C.; Ouyang, Z.; Cooks, R. G., Arrays of low-temperature plasma probes for ambient ionization mass spectrometry. Rapid Commun. Mass Spectrom., 2013, 27, 135-142.
17. Schaper, J. N.; Pfeuffer, K. P.; Shelley, J. T.; Bings, N. H.; Hieftje, G. M., Drop-on-Demand Sample Introduction System Coupled with the Flowing Atmospheric-Pressure Afterglow for Direct Molecular Analysis of Complex Liquid Microvolume Samples. Anal. Chem., 2012, 84, (21), 9246-9252.
16. Shelley, J. T.; Chan, G. C. Y.; Hieftje, G. M., Understanding the FAPA Ambient Ionization Source Through Optical Means. J. Am. Soc. Mass Spec., 2012, 23, (2), 407-417.
15. Shelley, J. T.; Hieftje, G. M., Ambient Mass Spectrometry: Approaching the Chemical Analysis of Things As They Are. J. Anal. At. Spectrom., 2011, 26, (11), 2153-2159.
14. Shelley, J. T.; Wiley, J. S; Hieftje, G. M., Ultrasensitive Ambient Mass Spectrometric Analyses a Pin-toCapillary Flowing Atmospheric-Pressure Afterglow Source. Anal. Chem., 2011, 83, (14), 5741-5748.
13. Chan, G. C. Y.; Shelley, J. T.; Wiley, J. S.; Jackson, A. U.; Engelhard, C.; Cooks, R. G.; Hieftje, G. M., Elucidation of Reaction Mechanisms Responsible for Afterglow Formation and Analyte Ionization in the Low-Temperature Plasma Probe Ambient Ionization Source. Anal. Chem., 2011, 83, (10), 3675-3686.
12. Chan, G. C. Y.; Shelley, J. T.; Jackson, A. U.; Wiley, J. S.; Engelhard, C.; Cooks, R. G.; Hieftje, G. M., Spectroscopic Plasma Diagnostics on a Low-Temperature Plasma Probe for Ambient Mass Spectrometry. J. Anal. At. Spectrom., 2011, 26, (7), 1434-1444.
11. Shelley, J. T.; Hieftje, G. M., Fast transient analysis and first-stage collision-induced dissociation with the flowing atmospheric-pressure afterglow ionization source to improve analyte detection and identification. Analyst. 2010, 135, (4), 682-687.
10. Shelley, J. T.; Hieftje, G. M., Ionization Matrix Effects in Plasma-Based Ambient Mass Spectrometry Sources. J. Anal. At. Spectrom., 2010, 25, (1), 345-350.
09. Schilling, G. D.; Shelley, J. T.; Barnes, J. H.; Sperline, R. P.; Denton, M. B.; Barinaga, C. J.; Koppenaal, D. W.; Hieftje, G. M., Detection of Positive and Negative Ions from a Flowing Atmospheric Pressure Afterglow Using a Mattauch-Herzog Mass Spectrograph Equipped with a Faraday-Strip Array Detector. J. Am. Soc. Mass. Spectrom., 2010, 21, (1), 97-103.
08. Shelley, J. T.; Wiley, J. S.; Chan, G. C. Y.; Schilling, G. D.; Ray, S. J.; Hieftje, G. M., Characterization of Direct-Current Atmospheric-Pressure Discharges Useful for Ambient Desorption/Ionization Mass Spectrometry. J. Am. Soc. Mass. Spec., 2009, 20, (5), 837-844.
07. Schilling, G. D.; Shelley, J. T.; Broekaert, J. A. C.; Sperline, R. P.; Denton, M. B.; Barinaga, C. J.; Koppenaal, D. W.; Hieftje, G. M., Use of an ambient ionization flowing atmospheric-pressure afterglow source for elemental analysis through hydride generation. J. Anal. At. Spectrom., 2009, 24, (1), 34-40.
06. Dattelbaum, A. M.; Hicks, R. K.; Shelley, J.; Koppisch, A. T.; Iyer, S., Surface assisted laser desorptionionization mass spectrometry on patterned nanoporous silica thin films. Microporous Mesoporous Mater. 2008, 114, (1-3), 193-200.
05. Shelley, J. T.; Ray, S. J.; Hieftje, G. M., Laser Ablation Coupled to a Flowing Atmospheric Pressure Afterglow for Ambient Mass Spectral Imaging. Anal. Chem., 2008, 80, (21), 8308-8313.
04. Andrade, F. J.; Shelley, J. T.; Wetzel, W. C.; Webb, M. R.; Gamez, G.; Ray, S. J.; Hieftje, G. M., Atmospheric Pressure Chemical Ionization Source. Part II: Desorption-Ionization for the Direct Analysis of Solid Compounds. Anal. Chem. 2008, 80, (8), 2654-2663.
03. Andrade, F. J.; Shelley, J. T.; Wetzel, W. C.; Webb, M. R.; Gamez, G.; Ray, S. J.; Hieftje, G. M., Atmospheric Pressure Chemical Ionization Source. Part I: Ionization of Compounds in the Gas Phase. Anal. Chem. 2008, 80, (8), 2646-2653.
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02. Koppisch, A. T.; Browder, C. C.; Moe, A. L.; Shelley, J. T.; Kinke, B. A.; Hersman, L. E.; Iyer, S.; Ruggiero, C. E., Petrobactin is the Primary Siderophore Synthesized by Bacillus Anthracis str. Sterne Under Conditions of Iron Starvation. Biometals, 2005, 18, (6), 577-585.
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01. Stearns, D. M.; Yazzie, M.; Bradley, A. S.; Coryell, V. H.; Shelley, J. T.; Ashby, A.; Asplund, C. S.; Lantz, R. C., Uranyl Acetate Induces hprt Mutations and Uranium-DNA Adducts in Chinese Hamster Ovary EM9 Cells. Mutagenesis, 2005, 20, (6), 417-423.
