Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Michael P. Polcha"'
Autor:
Randy Paffenroth, Vincent P. Schnee, Michael P. Polcha, Joshua R. Uzarski, Eric C. Nallon, Collin J. Bright, Michael S. Wiederoder, Matthew L. Weiss, Shannon K. McGraw
Publikováno v:
IEEE Sensors Journal. 18:5455-5463
Chemical sensors play an important role in a variety of civilian and military domains. In these contexts, the ability to accurately and quickly identify chemical agents is of utmost importance. In practice, constraints on physical footprint, power co
Autor:
Shannon K. McGraw, Michael S. Wiederoder, Collin J. Bright, Michael P. Polcha, Eric C. Nallon, Vincent P. Schnee, Randy Paffenroth, Matthew L. Weiss, Joshua R. Uzarski
Publikováno v:
ACS Sensors. 2:1669-1678
A cross-reactive array of semiselective chemiresistive sensors made of polymer-graphene nanoplatelet (GNP) composite coated electrodes was examined for detection and discrimination of chemical warfare agents (CWA). The arrays employ a set of chemical
Publikováno v:
Sensors and Actuators B: Chemical. 236:506-511
Contact printing of Quantum Dot (QD) and organic polymer (OP) composites is explored as an alternate method of fabricating a cross-reactive chemical sensor array. Sensing layers fabricated by inkjet printing and contact printing methods are compared,
Publikováno v:
2018 IEEE Research and Applications of Photonics In Defense Conference (RAPID).
IR Polarization can help to find man-made objects in scenes primarily made up of the natural environment. A model was developed to predict and explain results in short range, on-the-move situations. Test results show that Polarization contrast nearly
Publikováno v:
Analytical Chemistry. 88:1401-1406
A graphene chemical sensor is subjected to a set of structurally and chemically similar hydrocarbon compounds consisting of toluene, o-xylene, p-xylene, and mesitylene. The fractional change in resistance of the sensor upon exposure to these compound
Publikováno v:
ACS Sensors. 1:26-31
A graphene chemical vapor sensor with an unmodified surface has been fabricated and thoroughly characterized upon exposure to headspace vapor of a variety of solvents and related compounds. The vapor sensor exhibits excellent discrimination toward a
Publikováno v:
Sensors and Actuators B: Chemical. 190:578-584
In this paper, we present an organic light emitting diode (OLED) used as a sensor for the detection of 1,4-dinitrobenzene (1,4-DNB). The detection method relies on the attenuation of the emitted light due to interactions between the 1,4-DNB and the a
Publikováno v:
Analytical chemistry. 87(24)
A cross-reactive chemical sensing array was made from CdSe Quantum Dots (QDs) and five different organic polymers by inkjet printing to create segmented fluorescent composite regions on quartz substrates. The sensor array was challenged with exposure
Publikováno v:
SPIE Proceedings.
A sensor system has been constructed that is capable of detecting and discriminating between various explosives presented in ocean water with detection limits at the 10-100 parts per trillion level. The sensor discriminates between different compound
Publikováno v:
Analytical chemistry. 82(23)
A fluorescent polymer sensor array (FPSA) was made from commercially available fluorescent polymers coated onto glass beads and was tested to assess the ability of the array to discriminate between different analytes in aqueous solution. The array wa