个人简介

Fellow of the American Physical Society Fellow of the American Association for the Advancement of Science Associate Editor, Journal of Geophysical Research-Planets, NATO Collaborative Research Fellowship and Visiting Professor CNR/University of Rome, La Sapienza 1997-2000 NIH Young Investigator Award; 1998.

研究领域

Analytical Chemistry/Catalysis/Characterization/Chemical and Biological Imaging/Energy and Sustainability/Nanoscience and Technology/Physical Chemistry/Planetary Science and Astrobiology/Surface and Interfacial Chemistry

Electron- and Photon-stimulated Interface and Surface Processes. Dr. Orlando's group utilizes state-of-the-art ultra-high vacuum (UHV) surface science systems equipped with UV-laser sources and low-energy electron beams to stimulate reactions (such as the production of hydrogen) on a variety of substrates and interfaces. Sensitive laser detection schemes (resonance-enhanced multiphoton ionization) are used to probe the reaction dynamics. Approaches based on quantum mechanical interference to control desorption and patterning of surfaces at the nano- and meso-scale are also being developed. Environmental Chemistry and Planetary Surface Science. Water is ubiquitous in terrestrial and planetary atmospheres and environments. Dr. Orlando's group studies "wet" interfaces using nanoscale films of ice grown in UHV. Radical and ion-molecule reactions are then initiated using electron- and photon-beam sources. These experiments are relevant to understanding the photochemistry of stratospheric cloud particles and magnetospheric processing of icy satellite surfaces in the Jovian system. Biophysical Chemistry. The mechanisms of DNA damage and repair have been studied extensively, though the role intrinsic waters of hydration play in initiating damage have not been elucidated. Dr. Orlando's group will carry out electron- and photon-irradiation studies of DNA:water interfaces to examine the importance of direct vs. indirect damage.

近期论文

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Infrared Attenuated Total Reflection Spectroscopy of Quartz and Silica Micro- and Nanoparticulate Films. Mueller, Christian Menno; Molinelli, Alexandra; Karlowatz, Manfred; Aleksandrov, Alexandr; Orlando, Thomas; Mizaikoff, Boris JOURNAL OF PHYSICAL CHEMISTRY C. 2012, 116, issue 1, 37-43. Intermolecular Coulomb Decay at Weakly Coupled Heterogeneous Interfaces. Grieves, Gregory A.; Orlando, Thomas M. PHYSICAL REVIEW LETTERS. 2011, 107, issue 1, Thermal stability of water and hydroxyl on the surface of the Moon from temperature-programmed desorption measurements of lunar analog materials. Hibbitts, C. A.; Grieves, G. A.; Poston, M. J.; Dyar, M. D.; Alexandrov, A. B.; Johnson, M. A.; Orlando, T. M. ICARUS. 2011, 213, issue 1, 64-72. Electron-stimulated desorption of silicates: A potential source for ions in Mercury's space environment. McLain, Jason L.; Sprague, Ann L.; Grieves, Gregory A.; Schriver, David; Travinicek, Pavel; Orlando, Thomas M. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS. 2011, 116, Probing the Interaction of Hydrogen Chloride with Low-Temperature Water Ice Surfaces Using Thermal and Electron-Stimulated Desorption. Olanrewaju, Babajide O.; Herring-Captain, Janine; Grieves, Gregory A.; Aleksandrov, Alex; Orlando, Thomas M. JOURNAL OF PHYSICAL CHEMISTRY A. 2011, 115, issue 23, 5936-5942. Electron transport and precipitation at Mercury during the MESSENGER flybys: Implications for electron-stimulated desorption. Schriver, David; Travnicek, Pavel; Ashour-Abdalla, Maha; Richard, Robert L.; Hellinger, Petr; Slavin, James A.; Anderson, Brian J.; Baker, Daniel N.; Benna, Mehdi; Boardsen, Scott A.; Gold, Robert E.; Ho, George C.; Korth, Haje; PLANETARY AND SPACE SCIENCE. 2011, 56, issue 15, 2026-2036. Theoretical Study of Formamide Decomposition Pathways. Vinh Son Nguyen; Abbott, Heather L.; Dawley, M. Michele; Orlando, Thomas M.; Leszczynski, Jerzy; Minh Tho Nguyen JOURNAL OF PHYSICAL CHEMISTRY A. 2011, 115, issue 5, 841-851. Formation of Graphene Features from Direct Laser-Induced Reduction of Graphite Oxide. Sokolov, Denis A.; Shepperd, Kristin R.; Orlando, Thomas M. JOURNAL OF PHYSICAL CHEMISTRY LETTERS. 2010, 1, issue 18, 2633-2636.