18 Result(s)
within
Chapter
Isao Karube
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Chapter
Yeast Based Sensors
Since the first microbial cell sensor was studied by Karube et al. in 1977, many types of yeast based sensors have been developed as analytical tools. Yeasts are known as facultative anaerobes. Facultative ana...
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Chapter
Applications of Microbial Cell Sensors
Since the first microbial cell sensor was studied by Karube et al. in 1977, many types of microbial cell sensors have been developed as analytical tools. The microbial cell sensor utilizes microbes as a sensin...
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Chapter
Development of Microbial Sensors and Their Application
Many types of microbial sensors have been developed as analytical tools since the first microbial sensor was studied by Karube et al. in 1977. The microbial sensor consists of a transducer and microbe ...
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Chapter and Conference Paper
Chemical Vapor Sensor Using a Lipid-Coated SAW Resonator Oscillator
The sensitivity of piezoelectric Detectors and surface acoustic wave (SAW) devices is directly proportional to the square of the resonant frequency, and is inversely proportional to the surface area. Therefore...
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Chapter and Conference Paper
Development of Micro—Biosensors for Brain Research
Neurotransmitters play important roles in the brain since they are the key link in communication between neurons. Acetylcholine is the transmitter of motor neurons in the spinal cord as well as in all the nerv...
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Chapter
Microbial Sensors and Microbiosensors
A novel BOD sensor with a new principle employing a luminous bacterium, Photobacterium phosphoreum, was developed. The increased intensity of luminescence resulting from the cellular assimilation of organic compo...
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Chapter
Micro-biosensors for Clinical and Food Analyses
Micro-biosensors for glucose and fish freshness were constructed by using silicon fabrication technology. A micro-H2O2 electrode was used to make a micro-glucose sensor. Glucose oxidase was immobilized on an orga...
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Chapter
Microbiosensors and Immunosensors
Chemical reactions in organisms proceed smoothly because of the action of catalysts such as enzymes. These are highly specific for chemical substances with which they form complexes to promote their reactions....
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Chapter and Conference Paper
Microbiosensors for Clinical and Process Analysis
Microbiosensors for urea and adenosine triphosphate (ATP) are prepared with ion sensitive field effect transistor (ISFET) modified by enzymes such as urease and H +-ATPase respectively. The Micro-urea sensor give...
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Chapter
Immunosensors
The development of practical immunosensors is an important topic for biosensor research. Recently the authors have demonstrated novel immunosensors, such as the immuno-FET sensor, the piezoimmunosensor, the pu...
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Chapter
Micro-Biosensor
ISFET is utilized as a pH sensitive transducer, so that the enzyme or micro-organisms, which catalyze the reaction that involves pH changes, were coupled with the ISFET to construct a micro-biosensor. A micro-...
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Chapter
Enzyme and Microbial Sensor
Various enzyme and microbial sensors based on amperometric determination were developed. These sensors were composed of enzyme(s) or/and microorganisms immobilized in membranes on an oxygen electrode. Hypoxant...
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Chapter
Electric Pulse Accelerated Immunoassay
Variqus antigens including proteins, peptides, drugs and microorganisms are determined by immunoassay. The immunoassay is based on the specific binding reaction of an antigen to its antibody. Immunoreaction re...
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Chapter
Application of Photosensitive Immobilized α-Chymotrypsin to Synthetic Reaction
Hydrolytic enzymes can be used to catalyze the synthesis of the compounds that they normally hydrolyze. Substances which undergo reversible color formation under light irradiation are called photochromic compo...
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Chapter
Microbial Sensors for Ethyl Alcohol, Acetic Acid and Ammonia
Microbial sensors consisting of immobilized whole cells and electrochemical devices have been developed for the determination of raw materials, cell population and products in microbial media (1,2,3). Microbia...
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Chapter
Electrochemical Determination of Lipids in Serum
The determination of lipids in serum is very important in clinical analysis. Quantitative determination of lipids can be carried out colorimetrically; however, pretreatment such as lipid extraction and separat...
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Chapter
Biochemical Energy Conversion System
Considerable world-wide interest has arisen in development of new energy conversion systems. Utilization of biomass and waste water is attractive for energy production. The authors succeeded in stabilization o...
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Chapter
Electrochemical Preparation of Enzyme-Collagen Membrane and Its Application
The electrochemical preparation of membrane from fibrous protein such as collagen has been developed in our laboratory since 1966 (1,2,3).
