Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Responsive to non-optical – non-electrical signal
Reexamination Certificate
2007-01-16
2007-01-16
Pizarro, Marcos D. (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Responsive to non-optical, non-electrical signal
C257S414000, C257SE21400
Reexamination Certificate
active
10891569
ABSTRACT:
A potassium/sodium ion sensing device applying an extended-gate field effect transistor, which using an extended-gate ion sensitive field effect transistor (EGFET) as base to fabricate a potassium/sodium ion sensing device, using the extended gate of the extended-gate ion sensitive field effect transistor as a signal intercept electrode, and immobilizing the hydro-aliphatic urethane diacrylate (EB2001) intermixed with electronegative additive, potassium ionophore, sodium ionophore, and the like, to fabricate a potassium/sodium ion sensing electrode. The present invention utilizes the photocurability and good hydrophilicity of the hydro-aliphatic urethane diacrylate (EB2001), and fixes potassium/sodium ionophore, can obtain a non-wave filter, single-layer, stable signal potassium and sodium ion sensor. Thus, when the present invention is applied to measure the concentration of potassium/sodium ions in a sample, the mutual interference between potassium/sodium ion electrodes can be reduced, so the measured value can be more close to the actual value.
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Chou Jung-Chuan
Hsiung Shen-Kan
Kao I-Kone
Pan Chung-We
Sun Tai-Ping
Pizarro Marcos D.
Rosenberg , Klein & Lee
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