Prof. Michael H. Engel Profile

Prof. Michael H. Engel

at Univ of Oklahoma

SPIE Involvement:

Author

Publications (19)

Proceedings Article | 11 September 2015 Paper

Possible effects of diagenesis on the stable isotope composition of amino acids in carbonaceous meteorites

Michael Engel

Proc. SPIE. 9606, Instruments, Methods, and Missions for Astrobiology XVII

KEYWORDS: Carbon, Proteins, Contamination, Statistical analysis, Crystals, Organisms, Nitrogen, Solar system, Radiation effects, Crystallography

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Proceedings Article | 26 September 2013 Paper

Impact of prebiotic synthesis and diagenesis on the distribution, stereochemistry, and stable isotope composition of amino acids in carbonaceous meteorites

Michael Engel

Proc. SPIE. 8865, Instruments, Methods, and Missions for Astrobiology XVI

KEYWORDS: Carbon, Minerals, Proteins, Contamination, Matrices, Crystals, Nitrogen, Microorganisms, Solar system, Radiation effects

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Proceedings Article | 15 October 2012 Paper

Origins of the L-amino acid excess in carbonaceous meteorites

Michael Engel

Proc. SPIE. 8521, Instruments, Methods, and Missions for Astrobiology XV

KEYWORDS: Proteins, Contamination, Molecules, Crystals, Geology, Liquid crystals, Solar system, Planets, Geophysics, Comets

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Proceedings Article | 24 September 2011 Paper

Pre-biotic organic synthesis: laboratory simulation experiments and their significance for the origin of life in the solar system

Michael Engel

Proc. SPIE. 8152, Instruments, Methods, and Missions for Astrobiology XIV

KEYWORDS: Methane, Minerals, Proteins, Carbon dioxide, Ultraviolet radiation, Molecules, Hydrogen, Organisms, Earth's atmosphere, Solar system

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Proceedings Article | 7 September 2010 Paper

Pathways for the asymmetric amplification of protein amino acids in the Murchison meteorite

Michael Engel, Stephen Macko

Proc. SPIE. 7819, Instruments, Methods, and Missions for Astrobiology XIII

KEYWORDS: Minerals, Proteins, Contamination, Crystals, Organisms, Geology, Adsorption, Solar system, Geophysics, Thermodynamics

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Proceedings Article | 7 September 2010 Paper

The distribution and stereochemistry of amino acids in rocks and sediments from harsh terrestrial environments: analogues for future studies of ancient extraterrestrial materials

Michael Engel, Debra Engel

Proc. SPIE. 7819, Instruments, Methods, and Missions for Astrobiology XIII

KEYWORDS: Minerals, Proteins, Contamination, Water, Organisms, Microorganisms, Solar system, Gallium, Environmental sensing, Bacteria

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Proceedings Article | 4 September 2009 Paper

Partial racemization of amino acids in meteorites: implications for their possible modes of origin

Michael Engel

Proc. SPIE. 7441, Instruments and Methods for Astrobiology and Planetary Missions XII

KEYWORDS: Proteins, Contamination, Curium, Molecules, Organisms, Geology, Solar system, Geophysics, Astrobiology, Current controlled current source

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Proceedings Article | 28 August 2008 Paper

The origins of amino acids in ancient terrestrial and extraterrestrial materials

Michael Engel, Randall Perry

Proc. SPIE. 7097, Instruments, Methods, and Missions for Astrobiology XI

KEYWORDS: Carbon, Minerals, Proteins, Contamination, Statistical analysis, Crystals, Organisms, Mars, Solar system, Planets

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Proceedings Article | 28 August 2008 Paper

Inferring climate change from stable isotope compositions of ancient speleothems on Earth: possible implications for climatic reconstructions elsewhere in the solar system

Brian Harms, R. Douglas Elmore, Michael Engel

Proc. SPIE. 7097, Instruments, Methods, and Missions for Astrobiology XI

KEYWORDS: Carbon, Carbon dioxide, Oxygen, Carbonates, Climate change, Calcite, Oceanography, Solar system, Climatology, Temperature metrology

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Proceedings Article | 28 August 2008 Paper

Biomarker indicators of bacterial activity and organic fluxes during end Triassic mass extinction event

Dan Jiao, Randall Perry, Mike Engel, Mark Sephton

Proc. SPIE. 7097, Instruments, Methods, and Missions for Astrobiology XI

KEYWORDS: Carbon, Sensors, Spectroscopy, Ions, Microorganisms, Ecosystems, Biological research, Oceanography, Chromatography, Bacteria

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Proceedings Article | 1 October 2007 Paper

Stable sulfur isotopes as probes for ancient life in the solar system

Michael Engel

Proc. SPIE. 6694, Instruments, Methods, and Missions for Astrobiology X

KEYWORDS: Carbon, Minerals, Proteins, Sulfur, Organisms, Nitrogen, Carbonates, Oceanography, Earth's atmosphere, Solar system

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Proceedings Article | 14 September 2006 Paper

Carbon isotopic gradients in the Martian crust: implications for past or present life on Mars

Mark Sephton, Stephen Self, Alexander Verchovsky, Monica Grady, Randall Perry, Michael Engel, Ian Wright

Proc. SPIE. 6309, Instruments, Methods, and Missions for Astrobiology IX

KEYWORDS: Carbon, Contamination, Molecules, Crystals, Combustion, Mass spectrometry, Resonance energy transfer, Mars, Planets, Natural surfaces

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Proceedings Article | 14 September 2006 Paper

Amino acids as probes for ancient life in the solar system

Michael Engel, Randall Perry

Proc. SPIE. 6309, Instruments, Methods, and Missions for Astrobiology IX

KEYWORDS: Carbon, Proteins, Sulfur, Organisms, Nitrogen, Earth's atmosphere, Solar system, Gallium, Atmospheric sciences, Planetary science

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Proceedings Article | 22 September 2005 Paper

How desert varnish forms?

Randall Perry, Vera Kolb, Bridget Lynne, Mark Sephton, Nicola Mcloughlin, Michael Engel, Lorraine Olendzenski, Martin Brasier, James Staley

Proc. SPIE. 5906, Astrobiology and Planetary Missions

KEYWORDS: Oxides, Minerals, Iron, Silica, Silicon, Coating, Scanning electron microscopy, Aluminum, Manganese, Thin film coatings

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Proceedings Article | 22 September 2005 Paper

Establishing criteria to assess the possible origin(s) of life elsewhere in our solar system

Michael Engel, Stephen Macko

Proc. SPIE. 5906, Astrobiology and Planetary Missions

KEYWORDS: Carbon, Proteins, Contamination, Statistical analysis, Organisms, Mars, Chemical elements, Solar system, Neodymium, Gallium

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Proceedings Article | 1 November 2004 Paper

Carbonaceous meteorites: source or substrate for life's origin on Earth?

Michael Engel

Proc. SPIE. 5555, Instruments, Methods, and Missions for Astrobiology VIII

KEYWORDS: Proteins, Curium, Molecules, Organisms, Chemical analysis, Mars, Solar system, Planets, Gallium, Comets

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Proceedings Article | 10 February 2004 Paper

Amino acids in carbonaceous meteorites: biotic or abiotic?

Michael Engel, Vlad Andrus, Stephen Macko

Proc. SPIE. 5163, Instruments, Methods, and Missions for Astrobiology VII

KEYWORDS: Carbon, Proteins, Contamination, Organisms, Nitrogen, Solar system, Neodymium, Planets, Gallium, Geophysics

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Proceedings Article | 6 July 1998 Paper

Stable isotopes as probes of terrestrial and extraterrestrial biotic and abiotic synthesis of organic matter

Michael Engel, Stephen Macko

Proc. SPIE. 3441, Instruments, Methods, and Missions for Astrobiology

KEYWORDS: Carbon, Contamination, Statistical analysis, Organisms, Nitrogen, Biopolymers, Chemical reactions, Earth's atmosphere, Chemical elements, Solar system

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Proceedings Article | 11 July 1997 Paper

Stable isotope analysis of amino acid enantiomers in the Murchison meteorite at natural abundance levels

Michael Engel, Stephen Macko

Proc. SPIE. 3111, Instruments, Methods, and Missions for the Investigation of Extraterrestrial Microorganisms

KEYWORDS: Carbon, Proteins, Logic, Curium, Spectroscopy, Nitrogen, Optical activity, Analytical research, Carbon monoxide, Geophysics

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Showing 5 of 19 publications

Conference Committee Involvement (13)

Instruments, Methods, and Missions for Astrobiology XVII

9 August 2015 | San Diego, California, United States

Instruments, Methods, and Missions for Astrobiology XVI

27 August 2013 | San Diego, California, United States

Instruments, Methods, and Missions for Astrobiology XV

14 August 2012 | San Diego, California, United States

Instruments, Methods, and Missions for Astrobiology XIV

23 August 2011 | San Diego, California, United States

Instruments, Methods, and Missions for Astrobiology XIII

3 August 2010 | San Diego, California, United States

Showing 5 of 13 Conference Committees

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