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Biosensors (Basel)

Title:		Cerium Oxide-Tungsten Oxide Core-Shell Nanowire-Based Microsensors Sensitive to Acetone
Author(s):		Tomic M; Setka M; Chmela O; Gracia I; Figueras E; Cane C; Vallejos S;
Address:		"Instituto de Microelectronica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Spain. milena.tomic@imb-cnm.csic.es. CEITEC-Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech Republic. milena.setka@ceitec.vutbr.cz. CEITEC-Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech Republic. Ondrej.Chmela@ceitec.vutbr.cz. Instituto de Microelectronica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Spain. isabel.gracia@imb-cnm.csic.es. Instituto de Microelectronica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Spain. Eduard.Figueras@imb-cnm.csic.es. Instituto de Microelectronica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Spain. carles.cane@imb-cnm.csic.es. Instituto de Microelectronica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Spain. stella.vallejos@imb-cnm.csic.es. CEITEC-Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech Republic. stella.vallejos@imb-cnm.csic.es"
Journal Title:		Biosensors (Basel)
Year:		2018
Volume:		20181123
Issue:		4
Page Number:		-
DOI:		10.3390/bios8040116
ISSN/ISBN:		2079-6374 (Electronic) 2079-6374 (Linking)
Abstract:		"Gas sensitive cerium oxide-tungsten oxide core-shell nanowires are synthesized and integrated directly into micromachined platforms via aerosol assisted chemical vapor deposition. Tests to various volatile organic compounds (acetone, ethanol, and toluene) involved in early disease diagnosis demonstrate enhanced sensitivity to acetone for the core-shell structures in contrast to the non-modified materials (i.e., only tungsten oxide or cerium oxide). This is attributed to the high density of oxygen vacancy defects at the shell, as well as the formation of heterojunctions at the core-shell interface, which provide the modified nanowires with 'extra' chemical and electronic sensitization as compared to the non-modified materials"
Keywords:		Acetone/*metabolism Cerium/*chemistry Nanowires/*chemistry Oxides/*chemistry Tungsten/*chemistry Volatile Organic Compounds/*metabolism acetone gas sensors heterojunctions metal oxides volatile organic compounds (VOCs);
Notes:		"MedlineTomic, Milena Setka, Milena Chmela, Ondrej Gracia, Isabel Figueras, Eduard Cane, Carles Vallejos, Stella eng 17-16531S/Grantova Agentura Ceske Republiky/ TEC2015-74329-JIN-(AEI/FEDER,EU)/Ministerio de Ciencia y Tecnologia/ TEC2016-79898-C6-(AEI/FEDER,EU)/Ministerio de Ciencia y Tecnologia/ Switzerland 2018/11/28 Biosensors (Basel). 2018 Nov 23; 8(4):116. doi: 10.3390/bios8040116"