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According to the requirement of the measuring impedance changes of biosensor caused by the specific binding of antibody and antigen, we designed an impedance measurement system for the biosensor which is able to work well within the range of frequency between 20Hz–100MHz. Besides of this, fast measurement, high accuracy, small size, and simple calibration are also needed. In this paper, the principle...
Electric responses of impedance immunobiosensor for E. coli O157 : H7 at multi-frequencies were explored by complex Td factor correction method. The Corrected data were fitted using least-square method to get the Cole-Cole parameters, and then the relationship between the concentration of bacteria and these parameters was researched. The results showed that the complex Td correction could rectify...
A five-level-three factor central composite rotary design was employed to find out the interactive effects of three variables, i.e. static magnetic field intensity, concentration of NH 3 –N and initial pH on polyhydroxyalkanoates (PHA) production by activated sludge under the aerobic dynamic feeding (ADF) technique. Response surface methodology (RSM) was utilized for process optimization and...
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