1,720,995 research outputs found
Comparison of TEOS (tetraethyl orthosilicate) and PVA (polyvinyl alcohol) for immobilization of glucose oxidase on screen-printed electrodes
No full textDisposable screen printed potentiometric sensors for determination of free radicals
No full textin C. Di Natale, A. D'Amico (Ed.), Sensors and Microsystems, World Sci., Singapor
A Screen-Printed Enzyme Electrode for the Determination of Organo-Phosphorous Pesticides
Full text linkEvolution of a previously reported bienzymatic biosensor for the determination of organo-phosphorous pesticides are reported. This class of pesticides are detected thanks to their high reversible inhibition power towards acid phosphatase (AcP). The catalytic activity of AcP was detected by means of a screen-printed electrode, in presence of the substrate ascorbic acid 2-phosphate (A2P). The current change due to the electrochemical oxidation of the ascorbic acid as reaction product was monitored. Particularly we focused our attention to the determination of the widely diffused pesticides, i.e. Malathion. Results obtained show a high sensitivity, with a lower detection limit of about 5 ppb
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Electrochemical sensors and biosensors for the detection of doping substances and methods.
No full textF. Mazzei and R. Pilloton EDS
Glucose oxidase (GOx) biosensors by prussian blue (PB) modified screen-printed electrodes
No full text- …
