Kinetic device

Cartoon of a stopped flow kinetic device (Courtesy of TgK Scientific Ltd). Solutions of enzyme and substrate are pushed from two syringes into a mixing chamber, then through an observation chamber and then into a third syringe. 

A. Catalytic biosensors These are kinetic devices that measure steady-state concentration of a transducer-detectable species formed/lost due to a biocatalytic reaction. 

We consider the TAP reactor as a basic kinetic device for systematic studies of reaction-diffusion systems. In this chapter, we are going to (i) present and analyze models of different TAP configurations with a focus on their possibilities with respect to characterizing active materials and unraveling complex mechanisms, and (ii) demonstrate relationships between TAP models and other basic reactor models, that is, models for the ideal continuous stirred-tank reactor (CSTR), batch reactor (BR) and plug-flow reactor (PER). In some situations, the TZTR can be considered a simple building block for constracting the various models. 

The HRP, aniline (or PANI), and hydrogen peroxide made up a specific oxidative system based on fast reaction kinetics. Devices were developed according to this system in which any two of the three components can be used as a sensor to detect the third component. The electronic signals were collected and analyzed for changes in the electrochemical properties of the polyaniline or its derivatives when the oxidative coupling reactions occurred. Polyaniline-coated polypropylene membranes exhibited strong tendency to adsorb and immobilize HRP [68]. 

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