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Peroxidases are widely used as catalysts in chemiluminescence (CL) reaction because of their excellent catalytic activity and various selectable species, such as horseradish peroxidase (HRP), sweet potato peroxidase (SPP) and soybean peroxidase (SbP). They have been employed in many different CL systems for the determination of hydrogen peroxidase (H2O2), nucleic acid, protein and so on. In this paper,...
In this paper, speed control curve of stepper motor was studied for optimizing the motion flexibility and improving the motion precision of the stepper motor under the open-loop control environment based on Microcontroller Unit (MCU). Firstly, the acceleration and deceleration control curve of trapezoidal and New S model was designed respectively. Secondly, the relationship curve between control pulse...
Accurate time measurement is the key technique for oscillating cup viscometer. In order to overcome the error due to environmental noise, a direct counter of pulse time interval was selected to measure the attenuated time related to viscosity, and then viscosity values are thus calculated. A measurement circuit composed of laser signal acquisition, time interval synthesis and time interval measurement,...
The aim of this review is to provide a detailed report of the glucose biosensor based on polyaniline. This conducting polymer not only has been widely used as matrix for immobilization of glucose oxidase, but also can act as electron mediator during enzymatic reaction process due to its outstanding features such as high conductivity, exceptional environmental stability in air, tunable electrochemical...
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