X-ray Fluorescence Microprobe (Tender and Hard)

Luiz Henrique Vieira Lima, Ryan Tappero, Clístenes Williams Araújo do Nascimento, Metal concentration and leaf spatial distribution assessed by synchrotron µXRF in Brazilian nickel hyperaccumulators. Plant Soil (2025). [doi: 10.1007/s11104-025-07477-5]

High ImpactHaihua Wang, Kaile Zhang, Ryan Tappero, Tiffany W. Victor, Jennifer M. Bhatnagar, Rytas Vilgalys, Hui‐Ling Liao, Inorganic nitrogen and organic matter jointly regulate ectomycorrhizal fungi‐mediated iron acquisition. New Phytol., 245(6), 2715-2725 (2025). [doi: 10.1111/nph.20394]

Cited 4 timesChristopher J. Schuler, Amanda Patsis, Scott C. Alexander, David Hsu, William S. Dowd, Woonghee Lee, Sarick L. Matzen, Matthew A. Marcus, Cody S. Sheik, Jill M. McDermott, Peter K. Kang, Cara M. Santelli, Brandy M. Toner, Densely populated biofilms and linked iron and sulfur cycles in the fractured-rock continental subsurface. Geochim. Cosmochim. Acta, 375, 229-246 (2024). [doi: 10.1016/j.gca.2024.04.019]

Ayomide Ajayi, The Distribution of Ferric Iron between Spinel and Melt as a Function of Oxygen Fugacity and Spinel Cr-number, Master of Science in Earth Sciences Thesis. University of Minnesota, Minneapolis-Saint Paul (2024).

High ImpactCited 1 timePuu-Tai Yang, Yu-Hsuan Liang, Der-Chun Lee, Shan-Li Wang, Chemical speciation and rice uptake of soil molybdenum-Investigation with X-ray absorption spectroscopy and isotope fractionation. Sci. Total Environ., 949, 175141 (2024). [doi: 10.1016/j.scitotenv.2024.175141]

Janine L Andrys, Elizabeth Cottrell, Katherine A Kelley, Laura E Waters, Michelle L Coombs, Insights on Arc Magmatic Systems Drawn from Natural Melt Inclusions and Crystallization Experiments at PH2O =800 MPa under Oxidizing Conditions (2024). [doi: 10.1093/petrology/egae117]

D. Schaub, Breaking Established Boundaries in Igneous Petrology, Ph.D. Dissertation Thesis. Stony Brook University, Stony Brook (2024).

Aaron R. Betts, Matthew H. H. Fischel, Anna Evers, Ryan Tappero, Donald L. Sparks, Silicate coprecipitation reduces green rust crystal size and limits dissolution-precipitation during air oxidation. Geochem. T., 25(1), 12 (2024). [doi: 10.1186/s12932-024-00093-9]

Trevor Reay, Michelle L. Pyle, John Carmen, Taylor Barton, Nina R. Weisse-Bernstein, John Smedley, Erik M. Muller, Ryan Tappero, Richard L. Sandberg, Shiuh-Hua Wood Chiang, A Compact, Highly Scalable, Low-Power, and Multi-Channel Charge Digitizer for Beam Profile Monitoring, 2024 IEEE 67th International Midwest Symposium on Circuits and Systems (MWSCAS), Vol 5, p. 1222-1225 (2024). [doi: 10.1109/MWSCAS60917.2024.10658844]

Tiffany W. Victor, Ryan V. Tappero, Vivan Stojanoff, Yong S. Chu, Sean McSweeney, 2nd Annual Center for Biomolecular Structure Bioimaging Workshop: Introducing Synchrotron X-Ray Bioimaging to New Researchers. Synch. Rad. News, 37(4), 65-66 (2024). [doi: 10.1080/08940886.2024.2391259]

High ImpactCited 4 timesFatemeh Izaditame, Joshua J. LeMonte, Matthew G. Siebecker, Xuan Yu, Matthew Fischel, Ryan Tappero, Donald L. Sparks, Sea−level rise and arsenic−rich soils: A toxic relationship. J. Hazard. Mater., 472, 134528 (2024). [doi: 10.1016/j.jhazmat.2024.134528]

Cited 3 timesYingying Xu, Lavish Arya, Christopher Rooney, Abhinav Sharma, Xiangui Liu, Zhiming Hu, Xianggang Duan, Jason R. Trelewicz, Qingyun Li, Influence of fracturing fluids on shale matrix permeability and micro-mechanical properties after chemical interactions. Geoenergy Science and Engineering, 241, 213197 (2024). [doi: 10.1016/j.geoen.2024.213197]

Cited 1 timeKathryn D. Szerlag, Matthew G. Siebecker, Fatemeh Izaditame, Paul Northrup, Ryan Tappero, Donald L. Sparks, Multimodal, microspectroscopic speciation of legacy phosphorus in two US mid‐Atlantic agricultural soils. Soil Sci. Soc. Am. J., 88(6), 1992-2012 (2024). [doi: 10.1002/saj2.20765]

Cited 9 timesMatthew H.H. Fischel, Catherine E. Clarke, Donald L. Sparks, Arsenic sorption and oxidation by natural manganese-oxide-enriched soils: Reaction kinetics respond to varying environmental conditions. Geoderma, 441, 116715 (2024). [doi: 10.1016/j.geoderma.2023.116715]

Cited 3 timesChristopher Rooney, Ryan Tappero, Sarah Nicholas, Qingyun Li, Wellbore cement alteration and roles of CO2 and shale during underground hydrogen storage. Appl. Geochem., 170, 106088 (2024). [doi: 10.1016/j.apgeochem.2024.106088]

High ImpactCited 3 timesJ. Duan, R. Cloete, J. C. Loock, A. Lanzirotti, M. Newville, A. Martínez-García, D. M. Sigman, P. J. Lam, A. N. Roychoudhury, S. C. B. Myneni, Biogenic-to-lithogenic handoff of particulate Zn affects the Zn cycle in the Southern Ocean. Science, 384(6701), 1235-1240 (2024). [doi: 10.1126/science.adh8199]

High ImpactCited 4 timesKaile Zhang, Haihua Wang, Ryan Tappero, Jennifer M. Bhatnagar, Rytas Vilgalys, Kerrie Barry, Keykhosrow Keymanesh, Sravanthi Tejomurthula, Igor V. Grigoriev, William R. Kew, Elizabeth K. Eder, Carrie D. Nicora, Hui‐Ling Liao, Ectomycorrhizal fungi enhance pine growth by stimulating iron‐dependent mechanisms with trade‐offs in symbiotic performance. New Phytol., 242(4), 1645-1660 (2024). [doi: 10.1111/nph.19449]

Cited 1 timePaul Northrup, Ryan Tappero, Timothy D. Glotch, George J. Flynn, Mehmet Yesiltas, Yoko Kebukawa, Leonard Flores, Marina E. Gemma, Gavin Piccione, Chemistry in Retrieved Ryugu Asteroid Samples Revealed by Non-Invasive X-ray Microanalyses: Pink-Beam Fluorescence CT and Tender-Energy Absorption Spectroscopy. Geosciences, 14(4), 111 (2024). [doi: 10.3390/geosciences14040111]

Theodore M. Present, Elizabeth M. Niespolo, Catherine E. Clarke, Anna K. Behrensmeyer, Louise N. Leakey, Meave G. Leakey, Carrie Mongle, Anton Du Plessis, Paul Northrup, Ryan V. Tappero, Deming Yang, E. Troy Rasbury, Fredrick E. Grine, Nondestructive geochemical characterization of fossil hominin taphonomy and burial history. Quaternary Science Reviews, 328, 108525 (2024). [doi: 10.1016/j.quascirev.2024.108525]

High ImpactCited 7 timesAleksandar I. Goranov, Hongmei Chen, Jianshu Duan, Satish C. B. Myneni, Patrick G. Hatcher, Potentially Massive and Global Non-Pyrogenic Production of Condensed “Black” Carbon through Biomass Oxidation. Environ. Sci. Tech., 58(6), 2750-2761 (2024). [doi: 10.1021/acs.est.3c05448]

Cited 2 timesMegan Holycross, Elizabeth Cottrell, Jay Ague, Antonio Lanzirotti, Matthew Newville, Fe Kα XANES, Fe Kβ HERFD XANES and EPMA flank method determinations of the oxidation state of Fe in garnet. Chem. Geol., 647, 121937 (2024). [doi: 10.1016/j.chemgeo.2024.121937]

Cited 2 timesDavid A. McKeown, Hao Gan, Charles Viragh, Ian L. Pegg, X-ray absorption spectroscopic studies of Fe environments in borosilicate waste glasses synthesized under a variety of redox conditions. J. Non-Cryst. Solids, 627, 122812 (2024). [doi: 10.1016/j.jnoncrysol.2023.122812]

Cited 6 timesIny Elizebeth Mathew, Hormat Shadgou Rhein, Jian Yang, Antonella Gradogna, Armando Carpaneto, Qi Guo, Ryan Tappero, Joachim Scholz‐Starke, Bronwyn J. Barkla, Kendal D. Hirschi, Tracy Punshon, Sequential removal of cation/H⁺ exchangers reveals their additive role in elemental distribution, calcium depletion and anoxia tolerance. Plant Cell & Environment, 47(2), 557-573 (2024). [doi: 10.1111/pce.14756]

High ImpactCited 10 timesPiyapas Sricharoenvech, Matthew G. Siebecker, Ryan Tappero, Gautier Landrot, Matthew H.H. Fischel, Donald L. Sparks, Chromium speciation and mobility in contaminated coastal urban soils affected by water salinity and redox conditions. J. Hazard. Mater., 462, 132661 (2024). [doi: 10.1016/j.jhazmat.2023.132661]

Cited 2 timesMina Porell, Matthew Cushman, Jason S. T. Fischel, Matthew H. H. Fischel, Donald L. Sparks, Rosie Grayburn, Scanning X‐ray fluorescence spectroscopy and micro‐X‐ray absorption near‐edge structure analysis as a guiding tool for the conservation treatment of two eighteenth‐century Philadelphian portraits. X-Ray Spectrom., 53(4), 232-241 (2024). [doi: 10.1002/xrs.3345]

Cited 7 timesIsabel R Baker, Sarick L Matzen, Christopher J Schuler, Brandy M Toner, Peter R Girguis, Aerobic iron-oxidizing bacteria secrete metabolites that markedly impede abiotic iron oxidation, 2(12) (2023). [doi: 10.1093/pnasnexus/pgad421]

Julie Junesoo Kim, Mineral Coprecipitation and Mapping for Applications in Toxic Element Treatment and CO2 Sequestration, PhD Thesis. Princeton University, Princeton (2023).

Christopher Schuler, Biogeochemical Factors Impacting the Habitability of the Soudan Formation: Iron and Sulfur Cycling, Biofilms, and Fracture Surface Alteration, Ph.D. Thesis. University of Minnesota , Twin Cities (2023).

Cited 2 timesD.R Schaub, Paul Northrup, Hanna Nekvasil, Tristan Catalano, Ryan Tappero, Gas-mediated trace element incorporation into rhyolite-hosted topaz: A synchrotron microbeam XAS study. Am. Mineral., 108(12), 2153–2163 (2023). [doi: 10.2138/am-2022-8417]

Jianshu Duan, Abiotic Transformation of Terrestrial Natural Organic Matter Probed by Multimodal Spectroscopy, Doctoral Dissertation Thesis. Princeton University, Princeton (2023).

Lucy Mottram, Development and Application of Uranium X-ray Absorption Spectroscopy to Natural Actinide Titanates, Ph.D. Thesis. University of Sheffield, Sheffield (2023).

Piyapas Sricharoenvech, Residence Time and Salinity Impacts on Chromium Speciation and Mobility in Soils of Varying Iron and Manganese Oxide Contents, Dissertation Thesis. University of Delaware, Newark (2023).

Fatemeh Izaditame, ARSENIC FATE DURING SEA–LEVEL RISE HYDROLOGICAL DISTURBANCES, Ph.D. Thesis. University of Delaware, Newark (2023).

Christopher Rooney, Qingyun Li, Biogeochemical Reactions in a Diffusion-limited Zone Around Wellbore Cement Relevant to Underground Hydrogen Storage, Unconventional Resources Technology Conference (2023). [doi: 10.15530/urtec-2023-3867104]

Gavin Piccione, Paleorecords of Antarctic ice motion, subglacial hydrology, and chemical weathering, PhD Dissertation Thesis. UC Santa Cruz, Santa Cruz (2023).

Cited 9 timesMatthew H.H. Fischel, Cathy E. Clarke, Donald L. Sparks, Synchrotron resolved microscale and bulk mineralogy in manganese-rich soils and associated pedogenic concretions. Geoderma, 430, 116305 (2023). [doi: 10.1016/j.geoderma.2022.116305]

Cited 7 timesMartin H. Gerzabek, Georges Stoops, Franz Ottner, Shan-Li Wang, Liang-Sin Huang, Franz Zehetner, The evolution of soil microstructure and micromineralogy along a soil age gradient on the Galápagos Islands (Ecuador). Geoderma Regional, 32, e00609 (2023). [doi: 10.1016/j.geodrs.2023.e00609]

Janine Andrys, Water and oxygen fugacity in subduction zone magmatism., Ph.D. Thesis. University of Rhode Island, Graduate School of Oceanography, Narragansett (2023).

Cited 3 timesSidney R. Hemming, Tanzhuo Liu, Paul Northrup, Sarah Nicholas, E. Troy Rasbury, Heng Chen, Alice Warden, Amanda Chen, Ruipeng Li, Ryan Tappero, Stephen E. Cox, Jenna Everard, Silu Wang, Michael Deluca, Benjamin Bostick, Alexander N. Halliday, Synchrotron Microanalytical Characterization and K/Ar Dating of the GL-O-1 Glauconite Reference Material at the Single Pellet Scale and Reassessment of the Age of Visually Mature Pellets. Minerals, 13(6), 773 (2023). [doi: 10.3390/min13060773]

High ImpactCited 29 timesMegan Holycross, Elizabeth Cottrell, Garnet crystallization does not drive oxidation at arcs. Science, 380(6644), 506-509 (2023). [doi: 10.1126/science.ade3418]

High ImpactCited 21 timesJu-Chen Chia, Jiapei Yan, Maryam Rahmati Ishka, Marta Marie Faulkner, Eli Simons, Rong Huang, Louisa Smieska, Arthur Woll, Ryan Tappero, Andrew Kiss, Chen Jiao, Zhangjun Fei, Leon V Kochian, Elsbeth Walker, Miguel Piñeros, Olena K Vatamaniuk, Loss of OPT3 function decreases phloem copper levels and impairs crosstalk between copper and iron homeostasis and shoot-to-root signaling in Arabidopsis thaliana. Plant Cell, 35(6), 2157-2185 (2023). [doi: 10.1093/plcell/koad053]

Cited 6 timesIvan N. Pidchenko, John N. Christensen, Martin Kutzschbach, Konstantin Ignatyev, Ignasi Puigdomenech, Eva-Lena Tullborg, Nick M. W. Roberts, E. Troy Rasbury, Paul Northrup, Ryan Tappero, Kristina O. Kvashnina, Thorsten Schäfer, Yohey Suzuki, Henrik Drake, Deep anoxic aquifers could act as sinks for uranium through microbial-assisted mineral trapping. Commun Earth Environ, 4(1), 128 (2023). [doi: 10.1038/s43247-023-00767-9]

Luiz Henrique Vieira de Lima, Agromining in Brazil: search for tropical hyperaccumulators and ecosystem risks from exposure to ultramafic soils, Ph.D. Thesis Thesis. Federal Rural University of Pernambuco (UFRPE), Recife city (2023).

High ImpactCited 12 timesKe Wen, Oliver A. Chadwick, Peter M. Vitousek, Elizabeth L. Paulus, Gautier Landrot, Ryan V. Tappero, John P. Kaszuba, George W. Luther, Zimeng Wang, Benjamin J. Reinhart, Mengqiang Zhu, Manganese Oxidation States in Volcanic Soils across Annual Rainfall Gradients. Environ. Sci. Tech., 57(1), 730-740 (2023). [doi: 10.1021/acs.est.2c02658]

Cited 2 timesAshwin Ambi, Aleksandra Stanisavljevic, Tiffany W. Victor, Adam W. Lowery, Judianne Davis, William E. Van Nostrand, Lisa M. Miller, Evaluation of Copper Chelation Therapy in a Transgenic Rat Model of Cerebral Amyloid Angiopathy. ACS Chem. Neurosci., 14(3), 378-388 (2023). [doi: 10.1021/acschemneuro.2c00483]

Adam Lowery, Enhanced Portability and Anti-Frosting Functionality of Cryostats for Synchrotron-Based X-ray Imaging, Ph.D. Thesis. Virginia Tech, Blacksburg (2022).

Ricarda Laasch, Zhenxian Liu, Lu Ma, Sarah Nicholas, Paul Northrup, Juergen Thieme, Matthew L. Whitaker, From Outer Space to the Center of the Earth: How NSLS-II Capabilities Enable Geoscience Studies. Synch. Rad. News, 35(6), 2-7 (2022). [doi: 10.1080/08940886.2022.2156752]

Cited 2 timesAdam W. Lowery, Ashwin Ambi, Lisa M. Miller, Jonathan B. Boreyko, Reducing Frost during Cryoimaging Using a Hygroscopic Ice Frame. ACS Omega, 7(48), 43421-43431 (2022). [doi: 10.1021/acsomega.2c03083]

Cited 6 timesAjith Pattammattel, Ryan Tappero, Dmitri Gavrilov, Hongqiao Zhang, Paul Aronstein, Henry Jay Forman, Peggy A O'Day, Hanfei Yan, Yong S Chu, Multimodal X-ray nano-spectromicroscopy analysis of chemically heterogeneous systems, 14(10) (2022). [doi: 10.1093/mtomcs/mfac078]

Cited 4 timesErik L. Gulbranson, E. Troy Rasbury, Greg A. Ludvigson, Andreas Möller, Gregory A. Henkes, Marina B. Suarez, Paul Northrup, Ryan V. Tappero, Julie A. Maxson, Russell S. Shapiro, Kathleen M. Wooton, U–Pb Geochronology and Stable Isotope Geochemistry of Terrestrial Carbonates, Lower Cretaceous Cedar Mountain Formation, Utah: Implications for Synchronicity of Terrestrial and Marine Carbon Isotope Excursions. Geosciences, 12(9), 346 (2022). [doi: 10.3390/geosciences12090346]

Cited 8 timesBrandy Stewart, Sarah Nicholas, Sharon Bone, Ryan Tappero, Paul Eger, Cody Sheik, Brandy M. Toner, A low‐input strategy for chromium removal from industrial stormwater using peat sorbent. J. Environ. Qual., 51(5), 1054-1065 (2022). [doi: 10.1002/jeq2.20397]

Cited 8 timesClaire L. Corkhill, Colleen Mann, Jeremy R. Eskelsen, Donovan N. Leonard, Lucy M. Mottram, Martin C. Stennett, Jennifer M. S. Ayling, Clare L. Thorpe, Max R. Cole, Sarah Nicholas, Ryan Tappero, Eric M. Pierce, Surface interfacial analysis of simulant high level nuclear waste glass dissolved in synthetic cement solutions. npj Mater Degrad, 6(1), 67 (2022). [doi: 10.1038/s41529-022-00279-5]

Cited 2 timesRose Jones, Sarah Nicholas, Paul Northrup, Benjamin Bostick, Colleen Hoffman, Wen Hu, Phoebe Lam, Alessandra Leri, Brandy Toner, Benjamin Twining, Characterization and Speciation of Marine Materials Using Synchrotron Probes: Guidelines for New Users. Oceanog (2022). [doi: 10.5670/oceanog.2022.207]

Cited 23 timesBenjamin A. Babst, David M. Braun, Abhijit A. Karve, R. Frank Baker, Thu M. Tran, Douglas J. Kenny, Julia Rohlhill, Jan Knoblauch, Michael Knoblauch, Gertrud Lohaus, Ryan Tappero, Sönke Scherzer, Rainer Hedrich, Kaare H. Jensen, Sugar loading is not required for phloem sap flow in maize plants. Nat. Plants, 8(2), 171-180 (2022). [doi: 10.1038/s41477-022-01098-x]

Cited 11 timesFranklin Linam, Matt A. Limmer, Ryan Tappero, Angelia L. Seyfferth, Rice husk and charred husk amendments increase porewater and plant Si but water management determines grain As and Cd concentration. Plant Soil, 477(1-2), 135-152 (2022). [doi: 10.1007/s11104-022-05350-3]

Cited 4 timesHao Ding, Clémence Gausse, Malin C. Dixon Wilkins, Lucy M. Mottram, Martin C. Stennett, Daniel Grolimund, Ryan Tappero, Sarah Nicholas, Shikuan Sun, Tomooki Shiba, C. Paraskevoulakos, Neil C. Hyatt, Claire L. Corkhill, Chemical characterisation of degraded nuclear fuel analogues simulating the Fukushima Daiichi nuclear accident. npj Mater Degrad, 6(1), 10 (2022). [doi: 10.1038/s41529-022-00219-3]

Cited 14 timesAlexandre C. Foucher, Nicholas Marcella, Jennifer D. Lee, Ryan Tappero, Christopher B. Murray, Anatoly I. Frenkel, Eric A. Stach, Dynamical Change of Valence States and Structure in NiCu3 Nanoparticles during Redox Cycling. J. Phys. Chem. C, 126(4), 1991-2002 (2022). [doi: 10.1021/acs.jpcc.1c10824]

Cited 8 timesNatasha D. Reich, Athena A. Nghiem, Sarah Nicholas, Benjamin C. Bostick, Michael G. Campbell, Determination of Arsenic Content in Water Using a Silver Coordination Polymer. ACS Environ. Au, 2(2), 150-155 (2022). [doi: 10.1021/acsenvironau.1c00036]

High ImpactCited 12 timesFatemeh Izaditame, Matthew G. Siebecker, Donald L. Sparks, Sea-level-rise-induced flooding drives arsenic release from coastal sediments. J. Hazard. Mater., 423, 127161 (2022). [doi: 10.1016/j.jhazmat.2021.127161]

Lucinda Hemmick, Dame Forbes, Robert Bolen, Mary Kroll, Dianna Gobler, John Halloran, Vivian Stojanoff, Aleida Perez, Collaboration Crushes Competition!. The Science Teacher, 88(6), 38-44 (2021). [doi: 10.1080/00368555.2021.12293623]

Emma Leigh Leverich Trainer, Transformation of phenolic contaminants and dissolved organic matter by manganese oxides, Ph.D. Thesis. University of Wisconsin, Madison (2021).

High ImpactCited 22 timesAlexandre C. Foucher, Nicholas Marcella, Jennifer D. Lee, Daniel J. Rosen, Ryan Tappero, Christopher B. Murray, Anatoly I. Frenkel, Eric A. Stach, Structural and Valence State Modification of Cobalt in CoPt Nanocatalysts in Redox Conditions. ACS Nano, 15(12), 20619-20632 (2021). [doi: 10.1021/acsnano.1c09450]

High ImpactCited 64 timesEmma L. Trainer, Matthew Ginder-Vogel, Christina K. Remucal, Selective Reactivity and Oxidation of Dissolved Organic Matter by Manganese Oxides. Environ. Sci. Tech., 55(17), 12084-12094 (2021). [doi: 10.1021/acs.est.1c03972]

Abby Evans, Using IRIS films to inform alternate wetting and drying (AWD) water management in rice paddies, Thesis Thesis. University of Delaware, Newark (2021).

High ImpactCited 6 timesChavis A. Stackhouse, Shan Yan, Lei Wang, Kim Kisslinger, Ryan Tappero, Ashley R. Head, Killian R. Tallman, Esther S. Takeuchi, David C. Bock, Kenneth J. Takeuchi, Amy C. Marschilok, Characterization of Materials Used as Face Coverings for Respiratory Protection. ACS Appl. Mater. Interfaces, 13(40), 47996-48008 (2021). [doi: 10.1021/acsami.1c11200]

Ajith Pattammattel, Ryan Tappero, Yong S. Chu, Mingyuan Ge, Dmitri Gavrilov, Xiaojing Huang, Hanfei Yan, Hard x-ray nano-XANES and implementation deep learning tools for multi-modal chemical imaging, X-Ray Nanoimaging: Instruments and Methods V, Vol 11839, p. 118390J, sponsored by SPIE (2021). [doi: 10.1117/12.2599526]

High ImpactCited 36 timesGaro Z. Akmakjian, Nabila Riaz, Mary Lou Guerinot, Photoprotection during iron deficiency is mediated by the bHLH transcription factors PYE and ILR3. Proc Natl Acad Sci USA, 118(40), e2024918118 (2021). [doi: 10.1073/pnas.2024918118]

High ImpactCited 20 timesCalvin D. Quilty, Garrett P. Wheeler, Lei Wang, Alison H. McCarthy, Shan Yan, Killian R. Tallman, Mikaela R. Dunkin, Xiao Tong, Steven Ehrlich, Lu Ma, Kenneth J. Takeuchi, Esther S. Takeuchi, David C. Bock, Amy C. Marschilok, Impact of Charge Voltage on Factors Influencing Capacity Fade in Layered NMC622: Multimodal X-ray and Electrochemical Characterization. ACS Appl. Mater. Interfaces, 13(43), 50920-50935 (2021). [doi: 10.1021/acsami.1c14272]

Cited 36 timesSichul Lee, Joohyun Lee, Felipe K. Ricachenevsky, Tracy Punshon, Ryan Tappero, David E. Salt, Mary Lou Guerinot, Redundant roles of four ZIP family members in zinc homeostasis and seed development in Arabidopsis thaliana. Plant J., 108(4), 1162-1173 (2021). [doi: 10.1111/tpj.15506]

Cited 4 timesHao Ding, Malin C. Dixon Wilkins, Lucy M. Mottram, Lewis R. Blackburn, Daniel Grolimund, Ryan Tappero, Sarah L. Nicholas, Shikuan Sun, Claire L. Corkhill, Neil C. Hyatt, Chemical state mapping of simulant Chernobyl lava-like fuel containing material using micro-focused synchrotron X-ray spectroscopy. J. Synch. Rad., 28(6), 1672-1683 (2021). [doi: 10.1107/S1600577521007748]

Joshua Zachery Sanchez, The Impact of Redox Potential and Salinity on Arsenic Cycling and Mobility in Iron Oxide Systems, Ph.D. Thesis. University of Delaware, Newark (2021).

High ImpactCited 8 timesKaile Zhang, Ryan Tappero, Joske Ruytinx, Sara Branco, Hui-Ling Liao, Disentangling the role of ectomycorrhizal fungi in plant nutrient acquisition along a Zn gradient using X-ray imaging. Sci. Total Environ., 801, 149481 (2021). [doi: 10.1016/j.scitotenv.2021.149481]

Lucinda Hemmick, Dame Forbes, Robert Bolen, Mary Kroll, Dianna Gobler, John Halloran, Vivian Stojanoff, Aleida Perez, Collaboration Crushes Competition! Preparing High School Research Students for Success in Big Science Careers. The Science Teacher, 88(6), 38 (2021).

Kathryn Szerlag, Advances in the use of synchrotron-based spatially resolved imaging and spectroscopy to speciate phosphorus in soils, Dissertation Thesis. University of Delaware, Newark (2021).

High ImpactCited 8 timesAbby E. Evans, Matt A. Limmer, Angelia L. Seyfferth, Indicator of redox in soil (IRIS) films as a water management tool for rice farmers. Journal of Environmental Management, 294, 112920 (2021). [doi: 10.1016/j.jenvman.2021.112920]

Cited 10 timesJérôme Laisney, Kayla Watters, Kevin V. Donohue, Jason M. Unrine, Vanessa Loczenski Rose, Delivery of short hairpin RNA in the neotropical brown stink bug, Euschistus heros, using a composite nanomaterial. Pesticide Biochemistry and Physiology, 104906 (2021). [doi: 10.1016/j.pestbp.2021.104906]

Cited 8 timesMichael A. Chen, Benjamin D. Kocar, Development of a novel microfluidic device to study metal geochemistry in situ using X-ray fluorescence microprobe spectroscopy. J. Synch. Rad., 28(2) (2021). [doi: 10.1107/S1600577520016239]

Cited 3 timesAngelia L. Seyfferth, Matt A. Limmer, Ryan Tappero, A Method to Preserve Wetland Roots and Rhizospheres for Elemental Imaging. J. Vis. Exp.(168) (2021). [doi: 10.3791/62227]

High ImpactCited 8 timesHao Ding, Malin C. Dixon Wilkins, Clémence Gausse, Lucy M. Mottram, Shikuan Sun, Martin C. Stennett, Daniel Grolimund, Ryan Tappero, Sarah Nicholas, Neil C. Hyatt, Claire L. Corkhill, Safely probing the chemistry of Chernobyl nuclear fuel using micro-focus X-ray analysis. J. Mater. Chem. A, 9(21), 12612-12622 (2021). [doi: 10.1039/d0ta09131f]

Cited 23 timesE. Troy Rasbury, Theodore M. Present, Paul Northrup, Ryan V. Tappero, Antonio Lanzirotti, Jennifer M. Cole, Kathleen M. Wooton, Kevin Hatton, Tools for uranium characterization in carbonate samples: case studies of natural U–Pb geochronology reference materials. Geochronology, 3(1), 103-122 (2021). [doi: 10.5194/gchron-3-103-2021]

High ImpactCited 7 timesClistenes Williams Araujo do Nascimento, Dean Hesterberg, Ryan Tappero, Imaging Zn and Ni distributions in leaves of different ages of the hyperaccumulator Noccaea caerulescens by synchrotron-based X-ray fluorescence. J. Hazard. Mater., 408, 124813 (2021). [doi: 10.1016/j.jhazmat.2020.124813]

High ImpactCited 17 timesMatt A. Limmer, Abby E. Evans, Angelia L. Seyfferth, A New Method to Capture the Spatial and Temporal Heterogeneity of Aquatic Plant Iron Root Plaque In Situ. Environ. Sci. Tech., 55(2), 912-918 (2021). [doi: 10.1021/acs.est.0c02949]

Michael Chen, Pore-scale processes : quantification of the controls on the transport of Ra and Cr, and development of a novel geochemical visualization tool, Ph.D Thesis Thesis. Massachusetts Institute of Technology, Cambridge (2020).

High ImpactCited 22 timesHang Deng, Jeffrey P. Fitts, Ryan V. Tappero, Julie J. Kim, Catherine A. Peters, Acid Erosion of Carbonate Fractures and Accessibility of Arsenic-Bearing Minerals: In Operando Synchrotron-Based Microfluidic Experiment. Environ. Sci. Tech., 54(19), 12502-12510 (2020). [doi: 10.1021/acs.est.0c03736]

High ImpactCited 93 timesDaren Wu, Lisa M. Housel, Sung Joo Kim, Nahian Sadique, Calvin D. Quilty, Lijun Wu, Ryan Tappero, Sarah L. Nicholas, Steven Ehrlich, Yimei Zhu, Amy C. Marschilok, Esther S. Takeuchi, David C. Bock, Kenneth J. Takeuchi, Quantitative temporally and spatially resolved X-ray fluorescence microprobe characterization of the manganese dissolution-deposition mechanism in aqueous Zn/α-MnO2 batteries. Energy Environ. Sci., 13(11), 4322-4333 (2020). [doi: 10.1039/D0EE02168G]

Ajith Pattammattel, Ryan Tappero, Mingyuan Ge, Yong Chu, Xiaojing Huang, Yuan Gao, Hanfei Yan, Nano-XANES: Chemical Mapping with Hard X-Rays, Goldschmidt2020 (2020). [doi: 10.46427/gold2020.2044]

Ryan Tappero, Sunny Liao, Jenny Bhatnagar, Colin Averill, KoKo Chen, Kaile Zhang, Sarah L Nicholas, Hugh O'Neill, Hassina Bilheux, Rytas Vilgalys, Multi-Modal Imaging of Plant-Microbe Interactions in the Pine Rhizosphere, Goldschmidt2020 (2020). [doi: 10.46427/gold2020.2561]

Katherine Szerlag, Advances in the Use of Synchrotron-Based Spatially Resolved Imaging and Spectroscopy to Speciate Phosphorus in Soils, Ph.D. Thesis. University of Delaware, Newark (2020).

Danielle Schlesinger, Salting the Earth: Biogeochemical cycling of chlorinated and brominated natural organic compounds in coastal ecosystems., Ph.D. Thesis. Princeton University, Princeton (2020).

Cited 2 timesDonald L. Sparks, A golden period for environmental soil chemistry. Geochem. T., 21(1), 5 (2020). [doi: 10.1186/s12932-020-00068-6]

High ImpactCited 51 timesA. Pattammattel, R. Tappero, M. Ge, Y. S. Chu, X. Huang, Y. Gao, H. Yan, High-sensitivity nanoscale chemical imaging with hard x-ray nano-XANES. Sci. Adv., 6(37), eabb3615 (2020). [doi: 10.1126/sciadv.abb3615]

Cited 1 timeNils Hanik, Marcel Best, Michael J. Schueller, Ryan Tappero, Richard A. Ferrieri, Defense Priming in Nicotiana tabacum Accelerates and Amplifies ‘New’ C/N Fluxes in Key Amino Acid Biosynthetic Pathways. Plants, 9(7), 851 (2020). [doi: 10.3390/plants9070851]

Yong S. Chu, Wah-Keat Lee, Ryan Tappero, Mingyuan Ge, Xiaojing Huang, Xianghui Xiao, Hanfei Yan, Paul Northrup, Juergen Thieme, Andrew M. Kiss, Garth J. Williams, Yang Yang, Sarah L. Nicholas, Ajith Pattammattel, Randy Smith, Petr Ilinski, Yonghua Du, Multimodal, Multidimensional, and Multiscale X-ray Imaging at the National Synchrotron Light Source II. Synch. Rad. News, 33(3), 29-36 (2020). [doi: 10.1080/08940886.2020.1751520]

Cited 15 timesXiayoue Zhu, Tiffany W. Victor, Ashwin Ambi, Joseph K. Sullivan, Joshua Hatfield, Feng Xu, Lisa M. Miller, William E. Van Nostrand, Copper accumulation and the effect of chelation treatment on cerebral amyloid angiopathy compared to parenchymal amyloid plaques. Metallomics, 12(4), 539-546 (2020). [doi: 10.1039/c9mt00306a]

Cited 3 timesMadison Esposito, Kevin Souhrada, Erin Garland, Mary Kroll, Robert Bolen, Victoria Hernandez, Janet Kaczmarek, David Meisel, Anya Swiss, Paul Northrup, Vivian Stojanoff, Juergen Thieme, Aleida Perez, Characterization of Potential Micrometeorites by Synchrotron Analysis. Geosciences, 10(7), 275 (2020). [doi: 10.3390/geosciences10070275]

High ImpactCited 15 timesClistenes Williams Araujo do Nascimento, Dean Hesterberg, Ryan Tappero, Effects of exogenous citric acid on the concentration and spatial distribution of Ni, Zn, Co, Cr, Mn and Fe in leaves of Noccaea caerulescens grown on a serpentine soil. J. Hazard. Mater., 398, 122992 (2020). [doi: 10.1016/j.jhazmat.2020.122992]

Cited 59 timesScott C. Maguffin, Lena Abu-Ali, Ryan V. Tappero, Jasquelin Pena, Jai S. Rohila, Anna M. McClung, Matthew C. Reid, Influence of manganese abundances on iron and arsenic solubility in rice paddy soils. Geochim. Cosmochim. Acta, 276, 50-69 (2020). [doi: 10.1016/j.gca.2020.02.012]

Cited 4 timesDanielle R. Schlesinger, Satish C. B. Myneni, Impact of bromide exposure on natural organochlorine loss from coastal wetland soils in the Winyah Bay, South Carolina. Environ. Sci.: Process. Impacts, 22(3), 642-652 (2020). [doi: 10.1039/c9em00604d]

High ImpactCited 19 timesZheng Deng, Chang‐Jong Kang, Mark Croft, Wenmin Li, Xi Shen, Jianfa Zhao, Richeng Yu, Changqing Jin, Gabriel Kotliar, Sizhan Liu, Trevor A. Tyson, Ryan Tappero, Martha Greenblatt, A Pressure‐Induced Inverse Order–Disorder Transition in Double Perovskites. Angew. Chem. Int. Ed., 59(21), 8240-8246 (2020). [doi: 10.1002/anie.202001922]

Cited 57 timesEleanor Spielman-Sun, Astrid Avellan, Garret D. Bland, Emma T. Clement, Ryan V. Tappero, Alvin S. Acerbo, Gregory V. Lowry, Protein coating composition targets nanoparticles to leaf stomata and trichomes. Nanoscale, 12(6), 3630-3636 (2020). [doi: 10.1039/C9NR08100C]

High ImpactCited 22 timesClístenes Williams Araujo do Nascimento, Dean Hesterberg, Ryan Tappero, Sarah Nicholas, Fernando Bruno Vieira da Silva, Citric acid-assisted accumulation of Ni and other metals by Odontarrhena muralis: Implications for phytoextraction and metal foliar distribution assessed by μ-SXRF. Environ. Pollut., 260, 114025 (2020). [doi: 10.1016/j.envpol.2020.114025]

Cited 8 timesAakriti Sharma, Amanda Muyskens, Joseph Guinness, Matthew L. Polizzotto, Montserrat Fuentes, Ryan V. Tappero, Yu-chen K. Chen-Wiegart, Juergen Thieme, Garth J. Williams, Alvin S. Acerbo, Dean Hesterberg, Multi-element effects on arsenate accumulation in a geochemical matrix determined using µ-XRF, µ-XANES and spatial statistics. J. Synch. Rad., 26(6), 1967-1979 (2019). [doi: 10.1107/S1600577519012785]

A Sharma, Arsenic Reactivity in Soil Microsites in Relation to Matrix, Ph.D. Thesis. North Carolina State University, Raleigh (2019).

Cited 10 timesG Piccione, E Rasbury, B Elliott, R Kyle, S Jaret, A Acerbo, A Lanzirotti, P Northrup, K Wooton, R Parrish, Vein fluorite U-Pb dating demonstrates post–6.2 Ma rare-earth element mobilization associated with Rio Grande rifting. Geosphere, 15(6), 1958-1972 (2019). [doi: 10.1130/GES02139.1]

A Betts, Silicon coprecipitation with green rust carbonate and sulfate and its effects on formation and air oxidation, Ph.D. Thesis. University of Delaware, Newark (2019).

Y Gao, A Kiss, R Tappero, B Stripe, W Yun, Y Chu, Design optimization of a confocal x-ray fluorescence imaging capability for XFM and SRX at NSLS-II, SPIE Optical Engineering + Applications, 2019, sponsored by SPIE (2019). [doi: 10.1117/12.2528026]

Cited 100 timesEleanor Spielman-Sun, Astrid Avellan, Garret D. Bland, Ryan V. Tappero, Alvin S. Acerbo, Jason M. Unrine, Juan Pablo Giraldo, Gregory V. Lowry, Nanoparticle surface charge influences translocation and leaf distribution in vascular plants with contrasting anatomy. Environ. Sci.: Nano, 6(8), 2508-2519 (2019). [doi: 10.1039/c9en00626e]

E Spielman-Sun, Impact of Charge and Solubility on Nanoparticle Uptake and Transformations in Planta Through Spatially Resolved Chemical Speciation, Ph.D. Thesis. Carnegie Mellon University, Pittsburgh (2019).

Cited 35 timesJ Li, R Tappero, A Acerbo, H Yan, Y Chu, G Lowry, J Unrine, Effect of CeO2 nanomaterial surface functional groups on tissue and subcellular distribution of Ce in tomato (Solanum lycopersicum). Environ. Sci.: Nano, 6, 273-285 (2019). [doi: 10.1039/C8EN01287C]

M Fischel, The Biogeochemical Cycling if Arsenic in a Changing Climate, Ph.D. Thesis. University of Delaware, Newark (2019).

Jieran Li, Impact of physico-chemical properties of manufactured nanomaterials on plant uptake and trophic transfer, Ph.D. Thesis. University of Kentucky, Lexington (2018).

J Fischel, Soil Chemical Processes and Properties Impacting Chromium Cycling in Highly Contaminated Soils, Ph.D. Thesis. University of Delaware, Newark (2018).

Cited 118 timesP Kopittke, T Punshon, D Paterson, R Tappero, P Wang, P Blamey, A van der Ent, E Lombi, Synchrotron-based X-ray Fluorescence Microscopy as a Technique for Imaging of Elements in Plants. Plant Physiol., 178, 507-523 (2018). [doi: 10.1104/pp.18.00759]