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Determination of arylsulphatase and phosphatase enzyme activities in soil using screen-printed electrodes modified with multi-walled carbon nanotubes
(Pergamon-Elsevier Science Ltd, 2009-12)
Sustainability of agricultural systems has become an important issue all over the world. The activity of enzymes is potentially an important quality bioindicator in soils. The aim of the present study was to develop a ...
Development of a voltammetric sensor for chromium(VI) determination in wastewater sample
(Elsevier B.V., 2007-05-21)
Screen-printed carbon electrode (SPCE) modified with poly-L-histidine film can be successfully applied for chromium(VI) determination based on its pre-concentration. Optimum adherence and stability of the POIY-L-histidine ...
Development of a voltammetric sensor for chromium(VI) determination in wastewater sample
(Elsevier B.V., 2007-05-21)
Screen-printed carbon electrode (SPCE) modified with poly-L-histidine film can be successfully applied for chromium(VI) determination based on its pre-concentration. Optimum adherence and stability of the POIY-L-histidine ...
Investigation into the suitability of screen printed graphene-melanin pH sensors for use in bacterial culturing applications
(2022-01-01)
Screen printed pH sensors have been developed that utilise conductive carbon/graphene coated with DMSO-melanin for pH sensitivity. Their effectiveness has been demonstrated in buffer solutions and here they have been tested ...
Electrochemical and spectroscopic characterization of screen-printed gold-based electrodes modified with self-assembled monolayers and Tc85 protein
(ELSEVIER SCIENCE SA, 2009)
This work investigates the formation of self-assembled monolayers (SAMs) of cystamine and cystamine-glutaraldehyde on a screen-printed electrode, and the immobilization of the Tc85 protein (from Trypanosoma cruzi) on these ...
Amperometric detection of triclosan with screen-printed carbon nanotube electrodes modified with Guinea Grass (Panicum maximum) peroxidase
(Pontificia Universidad Javeriana, 2019-08-08)
Triclosan is a compound with antimicrobial activity broadly used in consumer products. Because of its well documented toxicity, the amount of triclosan present in different products needs to be tightly controlled. This ...
Amperometric biosensor based on laccase immobilized onto a nanostructured screen-printed electrode for determination of polyphenols in propolis
(Elsevier Science, 2018-08)
This work describes the preparation of an electrochemical biosensor for polyphenols determination in propolis samples. The biosensing scheme is based on a nanocomposite film of laccase enzyme (Lac) immobilized on gold ...
Enhancement of voltammetric determination of quinizarine based on the adsorption at surfactant-adsorbed-layer in disposable electrodes
(Elsevier B.V., 2014-11-15)
Screen-printed carbon electrode (SPCE) surface was easily altered through spontaneous hydrophobic interactions with cationic surfactant cetyltrimethylammonium bromide (CTAB) to form a surfactant-adsorbed-layer. This finding ...