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Goodlett SM, Turney JM, Douberly GE, Schaefer HF. The noncovalent interaction between water and the 3P ground state of the oxygen atom*. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2086934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Stephen M. Goodlett
- Department of Chemistry and Center for Computational Quantum Chemistry, University of Georgia, Athens, GA, USA
| | - Justin M. Turney
- Department of Chemistry and Center for Computational Quantum Chemistry, University of Georgia, Athens, GA, USA
| | - Gary E. Douberly
- Department of Chemistry and Center for Computational Quantum Chemistry, University of Georgia, Athens, GA, USA
| | - Henry F. Schaefer
- Department of Chemistry and Center for Computational Quantum Chemistry, University of Georgia, Athens, GA, USA
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Hall KW, Bradley AJ, Hinrichs U, Huron S, Wood J, Collins C, Carpendale S. Design by Immersion: A Transdisciplinary Approach to Problem-Driven Visualizations. IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS 2020; 26:109-118. [PMID: 31449025 DOI: 10.1109/tvcg.2019.2934790] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
While previous work exists on how to conduct and disseminate insights from problem-driven visualization projects and design studies, the literature does not address how to accomplish these goals in transdisciplinary teams in ways that advance all disciplines involved. In this paper we introduce and define a new methodological paradigm we call design by immersion, which provides an alternative perspective on problem-driven visualization work. Design by immersion embeds transdisciplinary experiences at the center of the visualization process by having visualization researchers participate in the work of the target domain (or domain experts participate in visualization research). Based on our own combined experiences of working on cross-disciplinary, problem-driven visualization projects, we present six case studies that expose the opportunities that design by immersion enables, including (1) exploring new domain-inspired visualization design spaces, (2) enriching domain understanding through personal experiences, and (3) building strong transdisciplinary relationships. Furthermore, we illustrate how the process of design by immersion opens up a diverse set of design activities that can be combined in different ways depending on the type of collaboration, project, and goals. Finally, we discuss the challenges and potential pitfalls of design by immersion.
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Kondeti VSSK, Phan CQ, Wende K, Jablonowski H, Gangal U, Granick JL, Hunter RC, Bruggeman PJ. Long-lived and short-lived reactive species produced by a cold atmospheric pressure plasma jet for the inactivation of Pseudomonas aeruginosa and Staphylococcus aureus. Free Radic Biol Med 2018; 124:275-287. [PMID: 29864482 DOI: 10.1016/j.freeradbiomed.2018.05.083] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 05/11/2018] [Accepted: 05/28/2018] [Indexed: 12/29/2022]
Abstract
Different chemical pathways leading to the inactivation of Pseudomonas aeruginosa and Staphylococcus aureus by a cold atmospheric pressure plasma jet (APPJ) in buffered and non-buffered solutions are reported. As APPJs produce a complex mixture of reactive species in solution, a comprehensive set of diagnostics were used to assess the liquid phase chemistry. This includes absorption and electron paramagnetic resonance spectroscopy in addition to a scavenger study to assess the relative importance of the various plasma produced species involved in the inactivation of bacteria. Different modes of inactivation of bacteria were found for the same plasma source depending on the solution and the plasma feed gas. The inactivation of bacteria in saline is due to the production of short-lived species in the case of argon plasma when the plasma touches the liquid. Long-lived species (ClO-) formed by the abundant amount of O. radicals produced by the plasmas played a dominant role in the case of Ar + 1% O2 and Ar + 1% air plasmas when the plasma is not in direct contact with the liquid. Inactivation of bacteria in distilled water was found to be due to the generation of short-lived species: O. &O2.- for Ar + 1% O2 plasma and O2.- (and .OH in absence of saline) for Ar plasma.
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Affiliation(s)
- V S Santosh K Kondeti
- Department of Mechanical Engineering, University of Minnesota, 111, Church Street, SE, Minneapolis, MN 55455, USA.
| | - Chi Q Phan
- Department of Microbiology and Immunology, University of Minnesota, Microbiology Research Facility, 689, SE, 23rd Ave, Minneapolis, MN 55455, USA.
| | - Kristian Wende
- ZIK Plasmatis at Leibniz Institute for Plasma Science and Technology e.V. (INP Greifswald e.V.), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Helena Jablonowski
- ZIK Plasmatis at Leibniz Institute for Plasma Science and Technology e.V. (INP Greifswald e.V.), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Urvashi Gangal
- Department of Mechanical Engineering, University of Minnesota, 111, Church Street, SE, Minneapolis, MN 55455, USA.
| | - Jennifer L Granick
- Department of Veterinary Clinical Sciences, University of Minnesota, 339 Veterinary Medical Center, 1352 Boyd Ave, Saint Paul, MN 55108, USA.
| | - Ryan C Hunter
- Department of Microbiology and Immunology, University of Minnesota, Microbiology Research Facility, 689, SE, 23rd Ave, Minneapolis, MN 55455, USA.
| | - Peter J Bruggeman
- Department of Mechanical Engineering, University of Minnesota, 111, Church Street, SE, Minneapolis, MN 55455, USA.
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Abstract
The dynamics of chemical reactions in liquid solutions are now amenable to direct study using ultrafast laser spectroscopy techniques and advances in computer simulation methods. The surrounding solvent affects the chemical reaction dynamics in numerous ways, which include: (i) formation of complexes between reactants and solvent molecules; (ii) modifications to transition state energies and structures relative to the reactants and products; (iii) coupling between the motions of the reacting molecules and the solvent modes, and exchange of energy; (iv) solvent caging of reactants and products; and (v) structural changes to the solvation shells in response to the changing chemical identity of the solutes, on timescales which may be slower than the reactive events. This article reviews progress in the study of bimolecular chemical reaction dynamics in solution, concentrating on reactions which occur on ground electronic states. It illustrates this progress with reference to recent experimental and computational studies, and considers how the various ways in which a solvent affects the chemical reaction dynamics can be unravelled. Implications are considered for research in fields such as mechanistic synthetic chemistry.
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Affiliation(s)
- Andrew J Orr-Ewing
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK.
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Benedikt J, Mokhtar Hefny M, Shaw A, Buckley BR, Iza F, Schäkermann S, Bandow JE. The fate of plasma-generated oxygen atoms in aqueous solutions: non-equilibrium atmospheric pressure plasmas as an efficient source of atomic O(aq). Phys Chem Chem Phys 2018; 20:12037-12042. [DOI: 10.1039/c8cp00197a] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
It is demonstrated with help of 18O2 labeling that O(aq) is stable in water and can directly react with dissolved molecules.
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Affiliation(s)
- J. Benedikt
- Experimental and Applied Physics
- Faculty of Mathematics and Natural Sciences
- Christian-Albrecht-Universität zu Kiel
- 24098 Kiel
- Germany
| | - M. Mokhtar Hefny
- Research Department Plasmas with Complex Interactions
- Ruhr-Universität Bochum
- 44780 Bochum
- Germany
- Basic Science Department
| | - A. Shaw
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering
- Loughborough University
- UK
| | - B. R. Buckley
- Department of Chemistry
- Loughborough University
- Loughborough
- UK
| | - F. Iza
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering
- Loughborough University
- UK
| | - S. Schäkermann
- Applied Microbiology
- Faculty of Biology and Biotechnology
- Ruhr-Universität Bochum
- 44780 Bochum
- Germany
| | - J. E. Bandow
- Applied Microbiology
- Faculty of Biology and Biotechnology
- Ruhr-Universität Bochum
- 44780 Bochum
- Germany
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