A Copper Oxide/Zinc Oxide Composite Nano-Surface for Use in a Biosensor

Autor: Martina Piano, Lu Cao, Janice Kiely, Richard Luxton
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Copper oxide
Materials science
Scanning electron microscope
Composite number
chemistry.chemical_element
macromolecular substances
02 engineering and technology
Zinc
010402 general chemistry
biosensor
lcsh:Technology
01 natural sciences
Article
chemistry.chemical_compound
symbols.namesake
Nano
Polyethylene terephthalate
General Materials Science
lcsh:Microscopy
lcsh:QC120-168.85
lcsh:QH201-278.5
lcsh:T
technology
industry
and agriculture
021001 nanoscience & nanotechnology
0104 chemical sciences
chemistry
Chemical engineering
lcsh:TA1-2040
impedance
symbols
Institute of Bio-Sensing Technology
lcsh:Descriptive and experimental mechanics
lcsh:Electrical engineering. Electronics. Nuclear engineering
ZnO–CuO
lcsh:Engineering (General). Civil engineering (General)
0210 nano-technology
Raman spectroscopy
CRP
lcsh:TK1-9971
Biosensor
Zdroj: Materials
Materials, Vol 12, Iss 7, p 1126 (2019)
Volume 12
Issue 7
ISSN: 1996-1944
Popis: In this study, biosensors based on zinc oxide&ndash
copper oxide composite nano-surfaces were prepared using a simple and inexpensive distributed colloidal technique. Combinations of mixed dispersions with volume ratios of 1:1, 1:2 and 2:1 ZnO:CuO were compared. The uniform nano-crystalline sensor surfaces on polyethylene terephthalate (PET) were analysed using scanning electron microscopy (SEM), Atomic Force Microscopy (AFM) and Raman Spectroscopy. The ZnO&ndash
CuO composite biosensor nano-surfaces showed a significantly increased impedimetric signal compared with pure ZnO nanocrystals, and the maximum output was achieved with a volume ratio of 1:2 ZnO/CuO. The antibody capture of C-reactive protein (CRP) on the nano-surfaces was used to demonstrate the enhanced signal generated with increasing amounts of CuO in the nano-surface.
Databáze: OpenAIRE
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