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Bioelectronic nose combined with a microfluidic system for the detection of gaseous trimethylamine

Lee, Seung Hwan ; Lim, Jong Hyun ; Park, Juhun ; Hong, Seunghun ; Park, Tai Hyun

Biosensors & bioelectronics, 2015-09, Vol.71, p.179-185 [Periódico revisado por pares]

England: Elsevier B.V

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Título:
Bioelectronic nose combined with a microfluidic system for the detection of gaseous trimethylamine
Autor: Lee, Seung Hwan ; Lim, Jong Hyun ; Park, Juhun ; Hong, Seunghun ; Park, Tai Hyun
Assuntos: Amino Acid Sequence ; Animals ; Bioelectricity ; Bioelectronic nose ; Biosensing Techniques - instrumentation ; Biotechnology ; Carbon nanotube ; Equipment Design ; Food Analysis - instrumentation ; Food Quality ; Gases - analysis ; Gases - metabolism ; Immobilized Proteins - chemistry ; Immobilized Proteins - metabolism ; Limit of Detection ; Methylamines - analysis ; Methylamines - metabolism ; Microfluidic gas sensor ; Microfluidics ; Microfluidics - instrumentation ; Molecular Sequence Data ; Nanostructure ; Nanotubes, Carbon - chemistry ; Nose ; Olfactory receptor ; Peptides - chemistry ; Peptides - metabolism ; Real time ; Receptors, Odorant - chemistry ; Receptors, Odorant - metabolism ; Seafood ; Seafood - analysis ; Transistors, Electronic ; Trimethylamine
É parte de: Biosensors & bioelectronics, 2015-09, Vol.71, p.179-185
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: A bioelectronic nose based on a novel microfluidic system (μBN) was fabricated to detect gaseous trimethylamine (TMA) in real-time. Single-walled carbon nanotube-field effect transistors (SWNT-FETs) were functionalized with olfactory receptor-derived peptides (ORPs) that can recognize the TMA molecules. The ORP-coated SWNT-FETs were assembled with a microfluidic channel and were sealed with top and bottom frames. This simple process was used to complete the μBNs, and a well-defined condition was achieved to detect the gaseous molecules. The μBNs allowed us to detect gaseous TMA molecules down to 10 parts per trillion (ppt) in real-time and showed high selectivity when distinguishing gaseous TMA from other gaseous odorants. The sensor was used to determine the quality of seafood (oysters), and spoiled seafood and other types of spoiled foods were also successfully discriminated without any pretreatment processes. These results indicate that portable-scale platforms can be manufactured by using μBNs and can be applicable for real-time on-site gas analysis. •Peptide-based bioelectronic nose was combined with a microfluidic system.•A single-walled carbon nanotube was coated with olfactory receptor-derived peptides.•Gaseous TMA molecules were sensitively and selectively detected at 10ppt.•The quality of seafood was measured using gaseous TMA generated from spoiled seafood.
Editor: England: Elsevier B.V
Idioma: Inglês

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Bioelectronic nose combined with a microfluidic system for the detection of gaseous trimethylamine

Lee, Seung Hwan ; Lim, Jong Hyun ; Park, Juhun ; Hong, Seunghun ; Park, Tai Hyun

England: Elsevier B.V

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