The Experts below are selected from a list of 294 Experts worldwide ranked by ideXlab platform

Shen-kan Hsiung - One of the best experts on this subject based on the ideXlab platform.

  • Portable urea biosensor based on the extended-gate field Effect Transistor
    Sensors and Actuators B-chemical, 2003
    Co-Authors: Jia-chyi Chen, Jung-chuan Chou, Shen-kan Hsiung
    Abstract:

    Abstract In this study, extended-gate field Effect Transistor (EGFET) was applied to fabricate disposable urea biosensor. And the 1.5 V low-voltage instrument amplifier was adopted to realize the portable urea biosensor. However, the difference between extended-gate field Effect Transistor and traditional ion-selective field Effect Transistor is the position of the sensitive membrane. The extended-gate field Effect Transistor was separated into two parts, which are the sensitive membrane and MOSFET. Hence, the MOSFET device can be designed to be a part of the readout circuit and the sensitive membrane was only put in the solution. Therefore, the configuration of the extended-gate field Effect Transistor can reduce the influence of the temperature, light and the erosion by the solutions. Besides, the configuration can reduce the cost substantially. The configuration of the extended-gate field Effect Transistor will raise the competitiveness to develop the disposable biosensor. The content of the urea in blood is one of the indexes to diagnose the renal efficiency. Then, the portable urea biosensor is the important expandable aspect. In this study, the gels, which are the poly vinyl alcohol with pendent styrylpyridinium groups, were used to immobilize the urease. The detection of the urea is based on the variation of pH value. Then, the dynamic range of the urea biosensor is from 0.31 to 120 mg/dl at the 5 mM phosphate buffer solution and the response time is about 2 min.

  • Portable urea biosensor based on the extended-gate field Effect Transistor
    Sensors and Actuators B-chemical, 2003
    Co-Authors: Jia-chyi Chen, Jung-chuan Chou, Tai-ping Sun, Shen-kan Hsiung
    Abstract:

    Abstract In this study, extended-gate field Effect Transistor (EGFET) was applied to fabricate disposable urea biosensor. And the 1.5 V low-voltage instrument amplifier was adopted to realize the portable urea biosensor. However, the difference between extended-gate field Effect Transistor and traditional ion-selective field Effect Transistor is the position of the sensitive membrane. The extended-gate field Effect Transistor was separated into two parts, which are the sensitive membrane and MOSFET. Hence, the MOSFET device can be designed to be a part of the readout circuit and the sensitive membrane was only put in the solution. Therefore, the configuration of the extended-gate field Effect Transistor can reduce the influence of the temperature, light and the erosion by the solutions. Besides, the configuration can reduce the cost substantially. The configuration of the extended-gate field Effect Transistor will raise the competitiveness to develop the disposable biosensor. The content of the urea in blood is one of the indexes to diagnose the renal efficiency. Then, the portable urea biosensor is the important expandable aspect. In this study, the gels, which are the poly vinyl alcohol with pendent styrylpyridinium groups, were used to immobilize the urease. The detection of the urea is based on the variation of pH value. Then, the dynamic range of the urea biosensor is from 0.31 to 120 mg/dl at the 5 mM phosphate buffer solution and the response time is about 2 min.

Jia-chyi Chen - One of the best experts on this subject based on the ideXlab platform.

  • Portable urea biosensor based on the extended-gate field Effect Transistor
    Sensors and Actuators B-chemical, 2003
    Co-Authors: Jia-chyi Chen, Jung-chuan Chou, Shen-kan Hsiung
    Abstract:

    Abstract In this study, extended-gate field Effect Transistor (EGFET) was applied to fabricate disposable urea biosensor. And the 1.5 V low-voltage instrument amplifier was adopted to realize the portable urea biosensor. However, the difference between extended-gate field Effect Transistor and traditional ion-selective field Effect Transistor is the position of the sensitive membrane. The extended-gate field Effect Transistor was separated into two parts, which are the sensitive membrane and MOSFET. Hence, the MOSFET device can be designed to be a part of the readout circuit and the sensitive membrane was only put in the solution. Therefore, the configuration of the extended-gate field Effect Transistor can reduce the influence of the temperature, light and the erosion by the solutions. Besides, the configuration can reduce the cost substantially. The configuration of the extended-gate field Effect Transistor will raise the competitiveness to develop the disposable biosensor. The content of the urea in blood is one of the indexes to diagnose the renal efficiency. Then, the portable urea biosensor is the important expandable aspect. In this study, the gels, which are the poly vinyl alcohol with pendent styrylpyridinium groups, were used to immobilize the urease. The detection of the urea is based on the variation of pH value. Then, the dynamic range of the urea biosensor is from 0.31 to 120 mg/dl at the 5 mM phosphate buffer solution and the response time is about 2 min.

  • Portable urea biosensor based on the extended-gate field Effect Transistor
    Sensors and Actuators B-chemical, 2003
    Co-Authors: Jia-chyi Chen, Jung-chuan Chou, Tai-ping Sun, Shen-kan Hsiung
    Abstract:

    Abstract In this study, extended-gate field Effect Transistor (EGFET) was applied to fabricate disposable urea biosensor. And the 1.5 V low-voltage instrument amplifier was adopted to realize the portable urea biosensor. However, the difference between extended-gate field Effect Transistor and traditional ion-selective field Effect Transistor is the position of the sensitive membrane. The extended-gate field Effect Transistor was separated into two parts, which are the sensitive membrane and MOSFET. Hence, the MOSFET device can be designed to be a part of the readout circuit and the sensitive membrane was only put in the solution. Therefore, the configuration of the extended-gate field Effect Transistor can reduce the influence of the temperature, light and the erosion by the solutions. Besides, the configuration can reduce the cost substantially. The configuration of the extended-gate field Effect Transistor will raise the competitiveness to develop the disposable biosensor. The content of the urea in blood is one of the indexes to diagnose the renal efficiency. Then, the portable urea biosensor is the important expandable aspect. In this study, the gels, which are the poly vinyl alcohol with pendent styrylpyridinium groups, were used to immobilize the urease. The detection of the urea is based on the variation of pH value. Then, the dynamic range of the urea biosensor is from 0.31 to 120 mg/dl at the 5 mM phosphate buffer solution and the response time is about 2 min.

Jung-chuan Chou - One of the best experts on this subject based on the ideXlab platform.

  • Portable urea biosensor based on the extended-gate field Effect Transistor
    Sensors and Actuators B-chemical, 2003
    Co-Authors: Jia-chyi Chen, Jung-chuan Chou, Shen-kan Hsiung
    Abstract:

    Abstract In this study, extended-gate field Effect Transistor (EGFET) was applied to fabricate disposable urea biosensor. And the 1.5 V low-voltage instrument amplifier was adopted to realize the portable urea biosensor. However, the difference between extended-gate field Effect Transistor and traditional ion-selective field Effect Transistor is the position of the sensitive membrane. The extended-gate field Effect Transistor was separated into two parts, which are the sensitive membrane and MOSFET. Hence, the MOSFET device can be designed to be a part of the readout circuit and the sensitive membrane was only put in the solution. Therefore, the configuration of the extended-gate field Effect Transistor can reduce the influence of the temperature, light and the erosion by the solutions. Besides, the configuration can reduce the cost substantially. The configuration of the extended-gate field Effect Transistor will raise the competitiveness to develop the disposable biosensor. The content of the urea in blood is one of the indexes to diagnose the renal efficiency. Then, the portable urea biosensor is the important expandable aspect. In this study, the gels, which are the poly vinyl alcohol with pendent styrylpyridinium groups, were used to immobilize the urease. The detection of the urea is based on the variation of pH value. Then, the dynamic range of the urea biosensor is from 0.31 to 120 mg/dl at the 5 mM phosphate buffer solution and the response time is about 2 min.

  • Portable urea biosensor based on the extended-gate field Effect Transistor
    Sensors and Actuators B-chemical, 2003
    Co-Authors: Jia-chyi Chen, Jung-chuan Chou, Tai-ping Sun, Shen-kan Hsiung
    Abstract:

    Abstract In this study, extended-gate field Effect Transistor (EGFET) was applied to fabricate disposable urea biosensor. And the 1.5 V low-voltage instrument amplifier was adopted to realize the portable urea biosensor. However, the difference between extended-gate field Effect Transistor and traditional ion-selective field Effect Transistor is the position of the sensitive membrane. The extended-gate field Effect Transistor was separated into two parts, which are the sensitive membrane and MOSFET. Hence, the MOSFET device can be designed to be a part of the readout circuit and the sensitive membrane was only put in the solution. Therefore, the configuration of the extended-gate field Effect Transistor can reduce the influence of the temperature, light and the erosion by the solutions. Besides, the configuration can reduce the cost substantially. The configuration of the extended-gate field Effect Transistor will raise the competitiveness to develop the disposable biosensor. The content of the urea in blood is one of the indexes to diagnose the renal efficiency. Then, the portable urea biosensor is the important expandable aspect. In this study, the gels, which are the poly vinyl alcohol with pendent styrylpyridinium groups, were used to immobilize the urease. The detection of the urea is based on the variation of pH value. Then, the dynamic range of the urea biosensor is from 0.31 to 120 mg/dl at the 5 mM phosphate buffer solution and the response time is about 2 min.

A. Khan - One of the best experts on this subject based on the ideXlab platform.

  • Displacement-sensitive organic field Effect Transistor
    International Journal of Electronics, 2012
    Co-Authors: Khasan S. Karimov, Mohammad Mahroof-tahir, M. Saleem, A. Khan, T. A. Qasuria, T. A. Khan
    Abstract:

    Thin films of organic semiconductor copper phthalocynanine (CuPc) and Al were deposited in sequence by vacuum evaporation on a glass substrate with Ag source and drain electrodes. The Effect of displacement on the properties of the fabricated field Effect Transistor with metal (aluminium)–semiconductor (copper phthalocyanine) Schottky junction was investigated. It was observed that the drain–source resistance of this organic field Effect Transistor was decreased with displacement.

  • Pressure sensitive organic field Effect Transistor
    Physica E-low-dimensional Systems & Nanostructures, 2010
    Co-Authors: Khasan S. Karimov, Mohammad Mahroof-tahir, T. A. Khan, M. Saleem, A. Khan
    Abstract:

    Abstract Thin films of organic semiconductor copper phthalocyanine (CuPc) and Al were deposited in sequence by vacuum evaporation on a glass substrate with Ag source and drain electrodes. The Effect of pressure on the properties of the fabricated field Effect Transistor (FET) with metal (aluminum) – semiconductor (copper phthalocyanine) Schottky junction was investigated. It was observed that the drain–source resistance of this organic field Effect Transistor (OFET) decreased with pressure.

Jian Wang - One of the best experts on this subject based on the ideXlab platform.

  • Quantum spin field Effect Transistor
    Physical Review B, 2003
    Co-Authors: Baigeng Wang, Jian Wang
    Abstract:

    We propose, theoretically, a type of quantum field Effect Transistor that operates purely on the flow of spin current in the absence of charge current. This spin field Effect Transistor (SFET) is constructed without magnetic material, but with the help of a spin flip mechanism provided by a rotating external magnetic field. The SFET generates a constant instantaneous spin current that is sensitively controllable by a gate voltage as well as by the frequency and strength of the rotating field. The characteristics of a carbon nanotube based SFET is provided as an example.