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Direct monitoring of formaldehyde vapour and detection of ethanol vapour using dehydrogenase-based biosensors
Biosensors capable of directly detecting low levels of formaldehyde and ethanol vapour were constructed, Both biosensors are based on dehydrogenase enzymes which produce reduced nicotinamide adenine dinucleotide as part of the oxidation of formaldehyde and ethanol, The enzymes were immobilized in a...
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Published in: | Analyst (London) 1996, Vol.121 (12), p.1769-1773 |
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container_end_page | 1773 |
container_issue | 12 |
container_start_page | 1769 |
container_title | Analyst (London) |
container_volume | 121 |
creator | DENNISON, M. J HALL, J. M TURNER, A. P. F |
description | Biosensors capable of directly detecting low levels of formaldehyde and ethanol vapour were constructed, Both biosensors are based on dehydrogenase enzymes which produce reduced nicotinamide adenine dinucleotide as part of the oxidation of formaldehyde and ethanol, The enzymes were immobilized in a reverse micelle medium which did not dehydrate significantly over time, and allowed direct gas-phase monitoring, A screen-printed electrode was used as transducer. Formaldehyde and ethanol vapour partitioned into the reverse micelle media, where it was acted upon by the relevant enzyme, Reduced nicotinamide adenine dinucleotide was oxidized at the working electrode at a potential of 800 mV versus an Ag/AgCl reference electrode, Formaldehyde could be measured over the concentration range 1 ppb-1.3 ppm and ethanol could be detected over the range 50-250 ppm. |
doi_str_mv | 10.1039/AN9962101769 |
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Formaldehyde and ethanol vapour partitioned into the reverse micelle media, where it was acted upon by the relevant enzyme, Reduced nicotinamide adenine dinucleotide was oxidized at the working electrode at a potential of 800 mV versus an Ag/AgCl reference electrode, Formaldehyde could be measured over the concentration range 1 ppb-1.3 ppm and ethanol could be detected over the range 50-250 ppm.</description><identifier>ISSN: 0003-2654</identifier><identifier>ISSN: 1364-5528</identifier><identifier>EISSN: 1364-5528</identifier><identifier>DOI: 10.1039/AN9962101769</identifier><identifier>CODEN: ANALAO</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Analytical chemistry ; Biological and medical sciences ; Biosensors ; Biotechnology ; Chemistry ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; General, instrumentation ; Methods. Procedures. 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Formaldehyde and ethanol vapour partitioned into the reverse micelle media, where it was acted upon by the relevant enzyme, Reduced nicotinamide adenine dinucleotide was oxidized at the working electrode at a potential of 800 mV versus an Ag/AgCl reference electrode, Formaldehyde could be measured over the concentration range 1 ppb-1.3 ppm and ethanol could be detected over the range 50-250 ppm.</description><subject>Analytical chemistry</subject><subject>Biological and medical sciences</subject><subject>Biosensors</subject><subject>Biotechnology</subject><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General, instrumentation</subject><subject>Methods. Procedures. 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Psychology</topic><topic>General, instrumentation</topic><topic>Methods. Procedures. Technologies</topic><topic>TECHNOLOGY</topic><topic>TEKNIKVETENSKAP</topic><topic>Various methods and equipments</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>DENNISON, M. J</creatorcontrib><creatorcontrib>HALL, J. M</creatorcontrib><creatorcontrib>TURNER, A. P. F</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>SwePub</collection><collection>SwePub Articles</collection><collection>SWEPUB Linköpings universitet</collection><jtitle>Analyst (London)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>DENNISON, M. J</au><au>HALL, J. M</au><au>TURNER, A. P. F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Direct monitoring of formaldehyde vapour and detection of ethanol vapour using dehydrogenase-based biosensors</atitle><jtitle>Analyst (London)</jtitle><date>1996</date><risdate>1996</risdate><volume>121</volume><issue>12</issue><spage>1769</spage><epage>1773</epage><pages>1769-1773</pages><issn>0003-2654</issn><issn>1364-5528</issn><eissn>1364-5528</eissn><coden>ANALAO</coden><abstract>Biosensors capable of directly detecting low levels of formaldehyde and ethanol vapour were constructed, Both biosensors are based on dehydrogenase enzymes which produce reduced nicotinamide adenine dinucleotide as part of the oxidation of formaldehyde and ethanol, The enzymes were immobilized in a reverse micelle medium which did not dehydrate significantly over time, and allowed direct gas-phase monitoring, A screen-printed electrode was used as transducer. 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source | Royal Society of Chemistry: Jisc Collections: Journals Archive 1841-2007 (2019-2023) |
subjects | Analytical chemistry Biological and medical sciences Biosensors Biotechnology Chemistry Exact sciences and technology Fundamental and applied biological sciences. Psychology General, instrumentation Methods. Procedures. Technologies TECHNOLOGY TEKNIKVETENSKAP Various methods and equipments |
title | Direct monitoring of formaldehyde vapour and detection of ethanol vapour using dehydrogenase-based biosensors |
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