Reagentless amperometric formaldehyde-selective biosensors based on the recombinant yeast formaldehyde dehydrogenase

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

“…HCHO was found in more than 2,000 products to which many industrial workers were exposed on a daily basis. The permissible level of HCHO in industrial areas was set in 0.5-2.0 ppm [3]. All these facts convincingly demonstrate the requirement for accurate HCHO determination.…”

Formaldehyde Oxidizing Enzymes and Genetically Modified Yeast Hansenula polymorpha Cells in Monitoring and Removal of Formaldehyde

“…These sensors were applied for FA testing in some industrial goods: Formidron, Descoton forte, formalin and rabbit vaccine against viral hemorrhage. A good correlation was observed between the data of FA testing (Table 11) Demkiv, et al, 2008, Demkiv, et al, 2009Demkiv, et al, 2008Korpan et al, 2010 Table 11. FA content in molar concentration in real samples, ±m, determined by different methods: chemical (MBTH, Chromotropic acid); enzymatic method "Formatest", FdDHbased, and biosensor approaches (FdDH-and recombinant cells Tf 11-6 -based).…”

“…As can be seen from Tables 9 and 10 Reference Khlupova et al, 2007Korpan et al, 2000Demkiv et al, 2008 * Oxygen consumption rate per 1 mM of FA (μM O2 s -1 · mM -1 ) , Smutok et al, 2006, Ben Ali et al, 2007. FdDH-based biosensors have very important property for FA analysis in real samples -high selectivity to FA, compared with AOX-and cells-based sensors (Gayda et al, 2008).…”

Alcohol oxidase- and formaldehyde dehydrogenase-based enzymatic methods for formaldehyde assay in fish food products

“…Different approaches have been proposed for FA assays (Bechmann, 1996;Demkiv et al, 2008), among them the most used are chemical and physico-chemical ones, although they are not void of serious drawbacks: low selectivity (chemical methods), necessity in analyte derivatization, costly equipment and trained personal (HPLC, mass-spectrometry, NMR). Recent achievements in the field of FA analysis include enzymatic and biosensor approaches based on the use of bacterial or yeast recombinant formaldehyde dehydrogenase (Ali et al, 2006;Ali et al, 2007;Demkiv, Paryzhak, Gayda, Sibirny, & Gonchar, 2007;Demkiv et al, 2008;Ho & Richards, 1990;Nikitina et al, 2007;Paryzhak, Demkiv, Schuhmann, & Gonchar, 2008) and yeast alcohol oxidase which is able to oxidise FA (Dmytruk et al, 2007;Gonchar, Strzelczyk, Maidan, Bień , & Sibirny, 1998;Sibirny et al, 2008).…”

“…Recent achievements in the field of FA analysis include enzymatic and biosensor approaches based on the use of bacterial or yeast recombinant formaldehyde dehydrogenase (Ali et al, 2006;Ali et al, 2007;Demkiv, Paryzhak, Gayda, Sibirny, & Gonchar, 2007;Demkiv et al, 2008;Ho & Richards, 1990;Nikitina et al, 2007;Paryzhak, Demkiv, Schuhmann, & Gonchar, 2008) and yeast alcohol oxidase which is able to oxidise FA (Dmytruk et al, 2007;Gonchar, Strzelczyk, Maidan, Bień , & Sibirny, 1998;Sibirny et al, 2008).…”