A bio-sniffer stick with FALDH (formaldehyde dehydrogenase) for convenient analysis of gaseous formaldehyde

Mitsubayashi, Kohji; Nishio, Genki; Sawai, Masayuki; Saito, Takao; Kudo, Hiroyuki; Saito, Hirokazu; Otsuka, Kimio; Noguer, Thierry; Marty, Jean‐Louis

doi:10.1016/j.snb.2007.07.086

Cited by 62 publications

(32 citation statements)

References 17 publications

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“…Mitsubayashi et al [15] describe a biosniffer for formaldehyde, that can measure formaldehyde in the range 0.04 -3.0 ppm with a response time of 2 min. These authors claim that a repetitive use of the biosniffer is possible after cleaning and reactivation, however, no data is shown that a continuous operation over a time period longer than a few minutes is possible.…”

Section: Sensor With Graphite/ptfe Gas Diffusion Electrodementioning

confidence: 99%

“…Sensor design n.s., reusable after cleaning and reactivation Mitsubayashi et al [15] [a] see text for detail;…”

Section: Sensor With Graphite/ptfe Gas Diffusion Electrodementioning

confidence: 99%

“…For example, Dennison et al described an enzyme sensor for phenol [11] based on a planar interdigitated microelectrode array, and sensors for ethanol and formaldehyde [12] based on a two-electrode system screen-printed on a PVC sheet. Mitsubayashi et al reported on a sensor system for ethanol [13] based on a Clark-type oxygen electrode and equipped with a pump for buffer circulation as well as sensor sticks for ethanol and acetaldehyde [14], and formaldehyde [15]. Park et al presented a sensor for ethanol [16] based on a screen-printed three-electrode strip.…”

Section: Introductionmentioning

confidence: 99%

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Gas Diffusion Electrodes for Use in an Amperometric Enzyme Biosensor

2008

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The preparation of gas diffusion electrodes and their use in an amperometric enzyme biosensor for the direct detection of a gaseous analyte is described. The gas diffusion electrodes are prepared by covering a PTFE membrane (thickness 250 mm, pore size 2 mm, porosity 35%) with gold, platinum, or a graphite/PTFE mixture. Gold and platinum are deposited by e-beam sputtering, whereas the graphite/PTFE layer is prepared by vacuum filtration of a respective aqueous suspension. These gas diffusion electrodes are exemplarily implemented as working electrodes in an amperometric biosensor for gaseous formaldehyde containing NAD-dependent formaldehyde dehydrogenase from P. putida [EC. 1.2.1.46] as enzyme and 1,2-naphthoquinone-4-sulfonic acid as electrochemical mediator. The resulting sensors are compared with regard to background current, signal noise, linear range, sensitivity, and detection limit. In this respect, sensors with gold or graphite/PTFE covered membranes outclass ones with platinum for this particular analyte and sensor configuration.

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Section: Sensor With Graphite/ptfe Gas Diffusion Electrodementioning

confidence: 99%

“…Sensor design n.s., reusable after cleaning and reactivation Mitsubayashi et al [15] [a] see text for detail;…”

Section: Sensor With Graphite/ptfe Gas Diffusion Electrodementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Gas Diffusion Electrodes for Use in an Amperometric Enzyme Biosensor

2008

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“…1.13 9 10 -4 C(M) (R = 0.999; LOD = 2.1 9 10 -10 M, 3 9 r; SOD = 1.13%, n = 5). Table 1 summaries the results of various method for HCHO sensing [4][5][6][7][8][29][30][31][32]. In comparison with the reported results such as biosensors, semiconductor sensors, and odor sensor, the present work shows a better sensitivity (Table 2).…”

Section: Physical Characterization and Structural Studiesmentioning

confidence: 55%

“…All these facts convincingly demonstrate the requirement for accurate HCHO determination. Some attempts were reported to develop HCHO sensors due to its electrochemical activity with Pt, Ru, and Au electrocatalysts [4][5][6][7][8]. The electric polyaniline supporting nano-Pt and Pd were involved to develop HCHO fuel cell [4,[9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Preparation of platinum nanoparticles on polyaniline-coat multi-walled carbon nanotubes for adsorptive stripping voltammetric determination of formaldehyde in aqueous solution

Jin

Peng

2009

J Appl Electrochem

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Platinum nanoparticles on polyaniline-coat multi-walled carbon nanotubes were fabricated by electrochemical method at paraffin-impregnated graphite electrode (Pt/PAN/MWCNTs). The material was characterized by various methods including field emission scanning electron microscope (FE-SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and electrochemical techniques. The electrode has been effectively applied toward formaldehyde (HCHO) sensing. A good linear response curves from 1 9 10 -9 to 1 9 10 -3 M can be obtained with a lower detection limit of 4.6 9 10 -11 M (S/N 3). The successful preparation of nanocomposites opens a new path to fabricate the promising sensor for HCHO.

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A highly sensitive and temporal visualization system for gaseous ethanol with chemiluminescence enhancer

et al. 2011

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A two-dimensional gaseous ethanol visualization system has been developed and demonstrated using a horseradish peroxidase-luminol-hydrogen peroxide system with high-purity luminol solution and a chemiluminescence (CL) enhancer. This system measures ethanol concentrations as intensities of CL via the luminol reaction. CL was emitted when the gaseous ethanol was injected onto an enzyme-immobilized membrane, which was employed as a screen for two-dimensional gas visualization. The average intensity of CL on the substrate was linearly related to the concentration of standard ethanol gas. These results were compared with the CL intensity of the CCD camera recording image in the visualization system. This system is available for gas components not only for spatial but also for temporal analysis in real time. A high-purity sodium salt HG solution (L-HG) instead of standard luminol solution and an enhancer, eosin Y (EY) solution, were adapted for improvement of CL intensity of the system. The visualization of gaseous ethanol was achieved at a detection limit of 3 ppm at optimized concentrations of L-HG solution and EY.

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A bio-sniffer stick with FALDH (formaldehyde dehydrogenase) for convenient analysis of gaseous formaldehyde

Cited by 62 publications

References 17 publications

Gas Diffusion Electrodes for Use in an Amperometric Enzyme Biosensor

Gas Diffusion Electrodes for Use in an Amperometric Enzyme Biosensor

Preparation of platinum nanoparticles on polyaniline-coat multi-walled carbon nanotubes for adsorptive stripping voltammetric determination of formaldehyde in aqueous solution

A highly sensitive and temporal visualization system for gaseous ethanol with chemiluminescence enhancer

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