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Maximum separation-distance for a separated-electrode piezoelectric sensor in non-electrolyte liquids. Application to determination of the adsorption human immunoglobulin G onto quartz surface by Qi Kang; Xia Wu; Yanhui Xue; Xueyong Liu; Dazhong Shen is a Engineering article available to read on EtoBox.

What is Maximum separation-distance for a separated-electrode piezoelectric sensor in non-electrolyte liquids. Application to determination of the adsorption human immunoglobulin G onto quartz surface about?

In a separated-electrode piezoelectric sensor SEPS , the two excitation electrodes are separated by solution layers. An oscillation 2 Ž . ( condition expressed as, 2 PN F b q 1 q b , is given for the SEPS to set up its stable oscillation in a non-electrolyte liquid. Here, and F are the static capacitance, motional resistance, oscillation frequency of o 1 o 2 q o o q the quartz crystal, respectively. C and C are the solution capacitance. b is a parameter related to the phase of oscillator. According to 1 2 Ž . this oscillation condition, there is a maximum separation-distance D between the two excitation electrodes. It is shown that the D max max values is proportional to the permittivity of the liquid and decreases with increasing viscosity and density of the liquid phase. The SEPS was applied for the determination of the adsorption density of human immunoglobulin G onto quartz surface.

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Author

Qi Kang; Xia Wu; Yanhui Xue; Xueyong Liu; Dazhong Shen

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0925-4005)

Published

1999

Language

EN

Field

Engineering (Physical Sciences)