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Many of the formal technical publications of the NASA Glenn Chemical Species Gas Sensors Branch are listed in the table below.

 NOTE: This material is presented to ensure timely public dissemination of NASA technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons accessing this information are expected to adhere to the terms and constraints invoked by each author’s copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. Work authored solely by US Government Employees performing official duties is not protected by US copyright. However, co-authored work with at least one non-US Government co-author is subject to copyright.

Critical Review of Solid State Gas Sensors (Editors’ Choice)G. W. Hunter, C.C. Liu, P. Hesketh, S. Akbar, D. Miller, J. Stetter, C. E. Davis, R. Ramasamy, and A. R. HillmanJournal of The Electrochemical Society, 2020 167 0375702020DOI
Mode Switching with Waveguide-Coupled Plasmonic
T. Palinski, B. Vyhnalek, G. Hunter, A. Tadimety, J. ZhangIEEE Journal of Selected Topics in Quantum Electronics2020DOI
Mode Switching in a Metallic Photonic Crystal SlabT. Palinski, B. Vyhnalek, G. Hunter, A. Tadimety, J. ZhangOptical Society of America: Conference on Lasers and Electro-Optics (CLEO), May 11-15, 2020 2020NTRS
Metallic Photonic Crystal-Based Sensor For Cryogenic EnvironmentsTimothy J. Palinski, Gary W. Hunter, Amogha Tadimety, and John X.J. ZhangOptics Express, Vol. 27, Issue 11, pp. 16344-16359, 20192019DOI
Development of 700C Capable Chemical Sensors for Engine Emissions Testing and Embedded Instrumentation ApplicationsDarby B. Makel, Susana Carranza, Gary W. Hunter and Jennifer C. Xu66th JANNAF Propulsion Meeting, Dayton OH, June 3-7, 20192019
Hydrogen Sensing in Titan's Atmosphere: Motivations and TechniquesRalph D. Lorenz, Hiroshi Imanaka, Christopher P. McKay, Darby Makel, Gary W. Hunter, Melissa P. Trainer, Robert Osiander, Andrew Mastandrea, Jason W. Barnes, Elizabeth P. TurtlePlanetary and Space Science, Volume 174, 15, Pages 1-7, 2019 2019DOI
Design of peptide nucleic acid probes on
plasmonic gold nanorods for detection of circulating tumor DNA point mutations
A. Tadimety, Y. Zhang, K. Kready, T. Palinski, G. Tsongalis, J. ZhangBiosensors and Bioelectronics, vol.
130, pp. 236-244
Smart Sensor Platforms and Systems for Aerospace ApplicationsGary W. Hunter, Darby B. Makel, and Jennifer C. Xu17th International Meeting on Chemical Sensors, Vienna, Austria, July 2018 (Invited Talk) 2018DOI
Engine Emissions Monitoring System Development for Engine Health ManagementGary W. Hunter, Susana Carranza, Darby B. Makel, Donald L. Simon, and Jennifer C. XuProceedings of the JANNAF 48th Combustion December Meeting, New Port News, VA, December 2018 2018
Real-Time Measurements Of Particulate And Toxic-Gas ConcentrationsFumiaki Takahashi, Paul S. Greenberg, Susana Carranza, Gary W. Hunter, Michael, J. Kulis, and Gordon Berger15th International Conference Fire and Materials 2017, San Francisco, February 6 – 8, 2017 2017
Portable Breath Monitoring: A New Frontier in Personalized Health CareGary W. Hunter, Raed A. Dweik, Darby B. Makel, Claude C. Grigsby, Ryan S. Mayes,and Cristina E. DavisInterface Magazine, Volume 25, Issue 4, Winter 2016 2016DOI
Multiparameter Emissions Monitoring for Engine Health ManagementGary W. Hunter, Donald L. Simon, Jennifer C. Xu, Azlin M. Biaggi-Labiosa, Susana Carranza, Darby B. Makel, Gordon M. BergerTurbine Engine Technology Symposium (TETS), Sept, 2016 2016
Smart Sensor Systems for Human Health and Safety Applications: Distributed Intelligent SystemsGary W. HunterTranslational Sciences 2016, April, 13-15, 2016, Washington, DC. (Invited Talk) 2016
A Brief Overview of Smart Microsystem Technology and its Application to Fire Detection, Air Quality Monitoring, Health Care, and Emissions MonitoringG.W. Hunter227 Meeting of the Electrochemical Society, May 2015, Chicago IL (Invited Talk)2015DOI
Gas Composition Monitoring in Cryogenic Fluid Transfer LinesG. W. Hunter, J. Williams, R.G. Johnson, D. Makel, A. M. Biaggi-Labiosa, and C.C. Liu227 Meeting of the Electrochemical Society, May 2015, Chicago IL 2015DOI
Chapter 1: Advanced Sensor Nanomaterials for Aerospace Applications, in Advanced Nanomaterials for Aerospace ApplicationsGary W. Hunter, Jennifer C. Xu, Laura J. Evans, Luis F. Fonseca, Ram Katiyar, Maria M. Martinez-Inesta, Wilfredo Otano, Neeraj Panwar, and Randy L. Vander WalPan Standofre Publishing, Eds. Carlos Cabrera and Felix Miranda, 2014 2014DOI
Chapter 2: Challenges and Possibilities in Nanosensor Technology, in Advanced Nanomaterials for Aerospace ApplicationsGary W. Hunter, Laura Evans, Jennifer Xu, Azlin Biaggi-Labiosa, Randy L. Vander Wal, Luis F. Fonseca, Gordon M. Berger, and Mike J. KulisPan Standofre Publishing, Eds. Carlos Cabrera and Felix Miranda, 2014 2014DOI
Aircraft Ground Demonstration of Engine Emissions Monitoring System Based on a Gas Microsensor ArrayGary W. Hunter; Donald L. Simon; Jennifer C. Xu; Azlin Biaggi-Labiosa; Susana Carranza; Darby MakelAIAA-2014-3925, 50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, July 28 to 30, 2014, Cleveland, OH 2014DOI
Design, fabrication, and testing of MEMS-based miniaturized potentiometric nitric oxide sensorsC.W. Chang, G. Maduraiveeran, J.C. Xu, G.W. Hunter, P.K. DuttaSensors and Actuators B: Chemical, Volume 204, 1 December 2014, Pages 183-1892014DOI
Shape-controlled synthesis of palladium and copper superlattice nanowires for high-stability hydrogen sensorsDachi Yang, Jennifer Carpena-Nunez, Luis F Fonseca, Azlin Biaggi-Labiosa and Gary W HunterSci. Rep. 4, 3773; DOI:10.1038/srep03773 (2014) 2014DOI
A Concept of Operations for An Integrated Vehicle Health Assurance SystemGary W. Hunter, Richard W. Ross, David E. Berger, John D. Lekki, Robert W. Mah, Daniel F. Perey, Stefan R. Schuet, Donald L. Simon, Stephen W. Smith Richard W. RossNASA/TM 2013 217825, February, 20132013NTRS
Nanostructured Material Sensor Processing Using Microfabrication TechniquesG. W. Hunter, R. L. Vander Wal, L. J. Evans, J.C. Xu, G. M. Berger, M. J. Kullis, A. M. Biaggi-LabiosaSensor Review, Vol. 32 Issue 2, pg. 106-117 2012DOI
In Development of High Temperature SiC Based Hydrogen/Hydrocarbon Sensors with Bond Pads for PackagingJennifer C. Xu, Gary. W. Hunter, L-Y. Chen, Azlin M. Biaggi-Labiosa, Benjamin J. Ward, Dorothy Lukco, Jose M. Gonzalez III, Peter S. Lampard, Michael A. Artale, and Christopher L. HamptonMaterials Science Forum, Vol. 717-720, pg. 1191, May 2012 2012NTRS
Smart Sensor SystemsG. W. Hunter, J. R. Stetter, P. J. Hesketh, and C. C. LiuInterface, Vol. 19, No. 4, Winter 2011, pp. 29-33 2011DOI
Smart Sensor Systems for Human Health Breath Monitoring ApplicationsG. W. Hunter, J. C. Xu, A. M. Biaggi-Labiosa, D. Laskowski, P. K. Dutta, S. P. Mondal, B. J. Ward, D. B. Makel, C. C. Liu, C. W. Chang, and R. A. Dweik J Breath Res 2011, 5 (3), 037111 2011DOI
Smart Sensor Systems for Spacecraft Fire Detection and Air Quality MonitoringG. W. Hunter, J. C. Xu, A. M. Biaggi-Labiosa, B. Ward, P. Dutta, and C. C. LiuIn 40th International Conference On Environmental Systems, AIAA: Portland, Oregon, 2011; Vol. AIAA 2011-5021 2011DOI
Development of high sensitivity potentiometric NOx sensor and its application to breath analysisP. M. Suvra, P. Dutta, G. W. Hunter, B. J. Ward, D. Laskowski, and R. A. DweikSensors and Actuators B: Chemical, Volume 158(1), 15 November 2011, Pages 292-298 2011DOI
Development of High Temperature Wireless Sensor Technology Based on Silicon Carbide ElectronicsG. W. Hunter, G. M. Beheim, G. E. Ponchak, M. C. Scardelletti, R. D. Meredith, F. W. Dynys, P. G. Neudeck, J. L. Jordan, and L. Y. ChenECS Transactions, 33 (8) 269-281 (2010) 2010DOI
Smart Chemical Sensor Systems for Fire Detection and Environmental Monitoring in SpacecraftGary W. Hunter, Jennifer C. Xu , Larry Dungan, Benjamin Ward, Prabir Dutta, Adedunni D. Adeyemo, Chung-Chiun Liu , and David P. GianettinoInternational Conference On Environmental Systems, Barcelona, Spain, AIAA766637 2010DOI
Controlled Fabrication of Nanostructure Material Based Chemical SensorsLaura J Evans, Gary W. Hunter, Jennifer C. Xu, Gordon M. Berger and Randall L. Vander WalMRS Proceedings, 1253, 1253-K08-04 2010DOI
The Development of Micro/Nano Chemical Sensor Systems for Aerospace ApplicationsG. W. Hunter, J. C. Xu, L. Evans, A. Biaggi-Labiosa, B. J. Ward, S. Rowe, D. B. Makel, C. C. Liu, P. Dutta, G. M. Berger, and R. L. Vander WalSPIE Newsroom, June 2010, 10.1117/2.1201006.002984 2010DOI
Novel Carbon Dioxide Microsensor Based on Tin Oxide Nanomaterial Doped With Copper OxideJ. C. Xu, G. W. Hunter, D. Lukco, C. C. Liu, and B. J. Ward Washington: National Aeronautics and Space Administration2008NTRS
Applied breath analysis: an overview of the challenges and opportunities in developing and testing sensor technology for human health monitoring in aerospace and clinical applicationsG. W. Hunter and R. A. DweikJournal of Breath Research2008DOI
Case Studies in Chemical Sensor DevelopmentG. W. Hunter, J. C. Xu, and D. B. MakelIn P. J. Hesketh, BioNanoFluidic MEMS (Chapter 8). Springer 2008DOI
Dependence of Sensing Properties upon Metal Oxide NanostructureR. L. Vander Wal, G. M. Berger, G. W. Hunter, and J. C. XuThe 2008 Annual Meeting - Nanowires II: Modeling, Integration Strategies and Applications2008
Hydrogen gas sensors fabricated on atomically flat 4H-SiC webbed cantileversP. G. Neudeck, D. J. Spry, A. J. Trunek, L. J. Evans, L-Y. Chen, and G. W. Hunter, et al.12th International Conference on Silicon Carbide and Related Materials (pp. 1199-1202). Trans Tech Publications Ltd. 2007NTRS
Intelligent Chemical Sensor Systems for In-Space Safety ApplicationsG. W. Hunter, J. C. Xu, P. G. Neudeck, D. B. Makel, B. Ward, and C. C. LiuAmerican Institute of Aeronautics and Astronautics2006NTRS
Chemical Sensors for Aerospace Applications: From Sensor Platforms to System ApplicationW. Hunter, J. C. Xu, P. G. Neudeck, C. C. Liu, D. Makel, B. Ward, et al.2006
Chemical Sensors based on Metal Oxide NanostructuresG. Hunter, J. Xu, L. Evans, R. Vander Wal, G. Berger, M. Kulis, et al. Nanostructured Metal Oxide: Processing and Applications - 210th Electrochemical Society Meeting (pp. 199-209). Electrochemical Society Inc. 2006NTRS
Sensors: Engineering Structures and Materials from Micro to NanoJ. R. Stetter, P. J. Hesketh, and G. W. HunterThe Electrochemical Society Interface, 66-69 2006
A Comparison between Sno2 Nanowires and Nanofibers for Advanced Environmental SensingR. L. Vander Wal, G. M. Berger, G. W. Hunter, J. C. Xu, L. J. Evans, and C. C. Liu2005 AIChE Annual Meeting and Fall Showcase (p. 11922). Cincinnati: American Institute of Chemical Engineers 2005
Sensor Needs for Control and Health Management of Intelligent Aircraft EnginesS. Garg, G. Hunter, T.-H. Guo, D. Simon, and K. SemegaASME Turbo Expo (pp. 873-882). Vienna: American Society of Mechanical Engineers2004NTRS
Chemical MicrosensorsC. C. Liu, P. J. Hesketh, and G. W. Hunter The Electrochemical Society Interface, 22-27 2004
An Overview of High-Temperature Electronics and Sensor Development at NASA Glenn Research CenterG. Hunter, P. Neudeck, R. Okojie, G. Beheim, J. Powell, and L. Chen Journal of Turbomachinery, 658-664 2003DOI
Novel Processing of NASICON and Sodium Carbonate/Barium Carbonate Thin and Thick Films for a CO2 MicrosensorB. Ward, C. Liu, and G. Hunter Journal of Materials Science, 4289-4292 2003DOI
Material system for packaging 500C SiC microsystemsL-Y. Chen, R. S. Okojie, P. G. Neudeck, G. W. Hunter, and S. –T. T. LinMaterials Research Society Symposium (pp. 79-90). Microelectronics and Microsystems Packaging2001DOI
SiC-Based Gas Sensor DevelopmentG. Hunter, P. Neudeck, M. Gray, D. Androjna, L. –Y. Chen, and R.W. Hoffman, Jr. et al.Washington: National Aeronautics and Space Administration 2000NTRS
Thin and Thick Films Materials Based Interconnection Technology for 500 C OperationL-Y. Chen, G. W. Hunter, and P. G. NeudeckWashington: National Aeronautics and Space Administration2000NTRS
Silicon Carbide Die Attach Scheme for 500oC OperationL-Y. Chen, G. W. Hunter, and P. G. NeudeckCleveland: NASA Glenn Research CenterDOI
Intelligent Sensor Systems for Integrated System Health Management in Exploration ApplicationsG. W. Hunter, L. G. Oberle, G. Baakalini, J. Perotti, and T. HongCleveland: NASA Glenn Research Center
High Temperature Electronics, Communications, and Supporting Technologies for Venus MissionsG. Hunter, R. Okojie, P. Neudeck, G. Beheim, G. Ponchak, G. Fralick, et al. Cleveland: NASA Glenn Research Center
Microsystems, Instrument Electronics, and Mobile Sensor PlatformsG. Hunter, R. Okojie, L. Oberle, M. Krasowski, G. Beheim, G. Fralick, et al. Cleveland: NASA Glenn Research Center
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