Detailed Information on Publication Record
2005
Amperometric screen-printed biosensor arrays with co-immobilised oxidoreductases and cholinesterases
SOLNÁ, Renáta, Eva DOCK, Alexander CHRISTENSON, Margrethe WINTER-NIELSEN, Christine CARLSSON et. al.Basic information
Original name
Amperometric screen-printed biosensor arrays with co-immobilised oxidoreductases and cholinesterases
Name in Czech
Amperometrické sítotisková biosensorová pole s koimobilisovanými oxidoreduktasami a cholinesterasami
Authors
SOLNÁ, Renáta (203 Czech Republic), Eva DOCK (752 Sweden), Alexander CHRISTENSON (752 Sweden), Margrethe WINTER-NIELSEN (208 Denmark), Christine CARLSSON (752 Sweden), Jenny EMNÉUS (752 Sweden), Tautgirdas RUZGAS (752 Sweden) and Petr SKLÁDAL (203 Czech Republic, guarantor)
Edition
Analytica Chimica Acta, Amsterdam, Elsevier Science Publishers, 2005, 0003-2670
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 2.760
RIV identification code
RIV/00216224:14310/05:00013673
Organization unit
Faculty of Science
UT WoS
000226455600002
Keywords in English
amperometric multienzyme sensor; steady state system; cholinesterase; oxidoreductase; phenoks; pesticides; wastewater; multivariate-analysis
Tags
Změněno: 7/6/2005 16:04, prof. RNDr. Petr Skládal, CSc.
V originále
Amperometric screen-printed biosensor arrays for detection of pesticides (organophosphates and carbamates) and phenols have been developed. Cholinesterases (AChE and BChE), tyrosinase (TYR), peroxidases (SBP. soybean and HRP. horseradish) and cellobiose dehydrogenase (CDH) were combined on the same array consisting of one Ag/AgCl reference electrode surrounded by eight radially distributed working electrodes of either carbon or platinum. Mainly cross-linking with glutaraldehyde was employed for enzyme immobilisation. The substrates for the enzymes were acetylthiocholine for cholinesterases (ChEs), cellobiose for CDH and hydrogen peroxide for peroxidases. Hydrogen peroxide was generated in the presence of glucose by co-immobilised glucose oxidase (GOx). All measurements were performed in an electrochemical steady state system specially constructed for eight channel screen-printed electrode arrays. The achieved relative standard deviation values calculated for different enzyme substrates (10 measurements) were typically below 7% and one assay was completed within less than 10 min. The detection limits for pesticides and phenols were in the nanomolar and micromolar ranges, respectively. The developed biosensor array was evaluated on wastewater samples. To simplify interpretation of results. the measured data were created with multivariate analysis-principal component analysis (PCA).
In Czech
Amperometrické sítotiskové multielektrodové biosensory byly připraveny použitím cholinesteras (AChE a BChE), tyrosinasy, celobiosa dehydrogenasy a peroxidas (křenová a sojová) na jediném sensoru. Byly optimalisovány podmínky měření. Testované vzorky odpadních vod pak byly klasifikovány pomocí chemometrické multivariační analysy.
Links
MSM0021622413, plan (intention) |
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