@inproceedings{PijanowskaRemiszewska2006,
  author    = {Pijanowska, Dorota G. and Remiszewska, Elzbieta},
  title     = {pH-based detection of phenylalnine by potentiometric and colorimetric methods},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1536},
  year      = {2006},
  abstract  = {In this paper, methods of sample preparation for potentiometric measurement of phenylalanine are presented. Basing on the spectrophotometric measurements of phenylalanine, the concentrations of reagents of the enzymatic reaction (10 mM L-Phe, 0,4 mM NAD+, 2U L-PheDH) were determined. Then, the absorption spectrum of the reaction product, NADH, was monitored (maximum peak at 340 nm). The results obtained by the spectrophotometric method were compared with the results obtained by the colourimetry, using pH indicators. The above-mentioned two methods will be used as references for potentiometric measurements of phenylalanine concentration.},
  subject      = {Biosensor},
  language  = {en}
}
@inproceedings{AridaKloockSchoening2006,
  author    = {Arida, Hassan A. and Kloock, Joachim P. and Sch{\"o}ning, Michael Josef},
  title     = {Novel organic membrane-based thin-film microsensors for the determination of heavy metal cations},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1545},
  year      = {2006},
  abstract  = {A first step towards the fabrication and electrochemical evaluation of thin-film microsensors based on organic PVC membranes for the determination of Hg(II), Cd(II), Pb(II) and Cu(II) ions in solutions has been realised. The membrane-coating mixture used in the preparation of this new type of microsensors is incorporating PVC as supporting matrix, o-nitrophenyloctylether (o-NPOE) as solvent mediator and a recently synthesized Hg[dimethylglyoxime(phene)]2+ and Bis-(4-hydroxyacetophenone)-ethylenediamine as electroactive materials for Hg(II) and Cd(II), respectively. A set of three commercialised ionophores for Cd(II), Pb(II) and Cu(II) has been also used for comparison. Thin-film microsensors based on these membranes showed a Nernstian response of slope (26-30 mV/dec.) for the respective tested cations. The potentiometric response characteristics (linear range, pH range, detection limit and response time) are comparable with those obtained by conventional membranes as well as coated wire electrodes prepared from the same membrane. The realisation of the new organic membrane-based thin-film microsensors overcomes the problem of an insufficient selectivity of solid-state-based thinfilm sensors.},
  subject      = {Biosensor},
  language  = {en}
}
@inproceedings{BarekFischerNavratiletal.2006,
  author    = {Barek, Jiri and Fischer, Jan and Navratil, Tomas and Peckova, Karolina and Yosypchuk, Bogdan},
  title     = {Silver solid amalgam electrodes as sensors for chemical carcinogens},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1554},
  year      = {2006},
  abstract  = {The applicability of differential pulse voltammetry (DPV) and adsorptive stripping voltammetry (AdSV) at a non-toxic meniscus-modified silver solid amalgam electrode (m-AgSAE) for the determination of trace amounts of genotoxic substances was demonstrated on the determination of micromolar and submicromolar concentrations of 3-nitrofluoranthene using methanol - 0.01 mol L-1 NaOH (9:1) mixture as a base electrolyte and of Ostazine Orange using 0.01 mol L-1 NaOH as a base electrolyte.},
  subject      = {Biosensor},
  language  = {en}
}
@inproceedings{BaronasIvanauskasKulys2006,
  author    = {Baronas, Romas and Ivanauskas, Feliksas and Kulys, Juozas},
  title     = {Mathematical modeling of biosensors based on an array of enzyme microreactors},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1569},
  year      = {2006},
  abstract  = {This paper presents a two-dimensional-in-space mathematical model of biosensors based on an array of enzyme microreactors immobilised on a single electrode. The modeling system acts under amperometric conditions. The microreactors were modeled by particles and by strips. The model is based on the diffusion equations containing a nonlinear term related to the Michaelis-Menten kinetics of the enzymatic reaction. The model involves three regions: an array of enzyme microreactors where enzyme reaction as well as mass transport by diffusion takes place, a diffusion limiting region where only the diffusion takes place, and a convective region, where the analyte concentration is maintained constant. Using computer simulation, the influence of the geometry of the microreactors and of the diffusion region on the biosensor response was investigated. The digital simulation was carried out using the finite difference technique.},
  subject      = {Biosensor},
  language  = {en}
}
@inproceedings{LeiMulchandaniChenetal.2006,
  author    = {Lei, Yu and Mulchandani, Priti and Chen, Wilfred and Mulchandani, Ashok},
  title     = {Biosensor for direct determination of fenitrothion and EPN using recombinant Pseudomonas putida JS444 with surface expressed organophosphorus hydrolase. 1. modified clark oxygen electrode},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1573},
  year      = {2006},
  abstract  = {This paper reports a first microbial biosensor for rapid and cost-effective determination of organophosphorus pesticides fenitrothion and EPN. The biosensor consisted of recombinant PNP-degrading/oxidizing bacteria Pseudomonas putida JS444 anchoring and displaying organophosphorus hydrolase (OPH) on its cell surface as biological sensing element and a dissolved oxygen electrode as the transducer. Surfaceexpressed OPH catalyzed the hydrolysis of fenitrothion and EPN to release 3-methyl-4-nitrophenol and p-nitrophenol, respectively, which were oxidized by the enzymatic machinery of Pseudomonas putida JS444 to carbon dioxide while consuming oxygen, which was measured and correlated to the concentration of organophosphates. Under the optimum operating conditions, the biosensor was able to measure as low as 277 ppb of fenitrothion and 1.6 ppm of EPN without interference from phenolic compounds and other commonly used pesticides such as carbamate pesticides, triazine herbicides and organophosphate pesticides without nitrophenyl substituent. The applicability of the biosensor to lake water was also demonstrated.},
  subject      = {Biosensor},
  language  = {en}
}