Chemical sensors : properties, performance, and applications / Ronald V. Harrison, editor.

Format:

Book

Contributor:

Harrison, Ronald V.

Series:

Chemistry Research and Applications

Language:

English

Subjects (All):

Chemical detectors.

Chemical engineering.

Physical Description:

1 online resource (212 p.)

Edition:

1st ed.

Place of Publication:

New York : Nova Science Publishers, c2010.

Language Note:

English

Summary:

This work investigates the physical principles of photon stimulated ozone sensors based on indium oxide nanostructures. It provides a review of the optical fibre sensor, especially focused on the optical fibre sensor development and its application in gas detection.

Contents:

Intro

Library of Congress Cataloging-in-Publication Data

Contents

Preface

Chapter 1

Photon Stimulated Ozone Sensing

Abstract

1. Introduction

1.1 Necessities of Ozone Monitoring

1.2. Traditional Methods for Ozone Sensing

UV absorption method

Electrochemical method

Work function method

Hybrid-suspended-gate field effect transistor method

Resistive method based on semiconductor material

Comparison of traditional methods

1.3 Photon Stimulated Room-Temperature Ozone Sensor

Sensor principle

Sensor setup

Sensor parameters

1.4 Metal Oxides as Ozone Sensing Material

Doping of In2O3 for ozone sensing

Material properties of In2O3

2. Growth and Characterization of Indium Oxide Nanoparticles by Means of MOCVD

2.1 Growth of Indium Oxide Nanoparticles

2.2 Electrical Properties of Indium Oxide Nanoparticles

2.3 Optical Properties of Indium Oxide Nanoparticles

3. Mechanisms of Photon Stimulated Ozone Sensing

3.1 Electrical Measurements

Ozone sensing properties in dependence of the layer thickness

3.2 Photoelectron Spectroscopy Measurements

3.3 Physical Models of Photon Stimulation and Ozone Oxidation

4. Ozone Sensors Based on Indium Oxide Nanoparticles

4.1 Fabrication of Ozone Sensors Integrated with UV-LEDs

4.2 Operation Conditions of Ozone Sensors

4.2.1 Operation mode and operation temperature of ozone sensors

4.2.2 Photon energy and light intensity of UV-LEDs for ozone sensors

4.3 Characterization of Ozone Sensors

4.3.1 Influence of the Particle Diameter on Ozone Sensitivity

4.3.2 Ozone sensing measurements in vacuum

4.3.3 Ozone sensing measurements in synthesized air

4.3.4 Cross sensitivity of ozone sensors

4.3.5 Long-term stability

4.3.6 Application example: Monitoring of ozone in a city

Conclusion

Acknowledgments.

References

Chapter 2

Fiber Optic Sensors for Gas Detection

2. Optical Methods in Fiber Optic Sensors

2.1 Optical Absorption-Based Sensors

2.2 Fluorescence-Based Sensors

2.3 IR Based Sensors

2.4 Other Optical Fiber Sensors

3. Fiber Optic Sensor Design

3.1 Active Coating Optical Fiber Sensor

3.2 Active Core Fiber Optical Sensor

4. Optical Fiber Gas Sensors and Their Applications

4.1 NH3 Sensor

4.2 NOX Sensor

4.3 SO2 sensor

4.4 H2S Sensor

4.5 CO Sensor

4.6 O3 Sensor

4.7 H2 Gas Sensor

4.8 Humidity Sensor

4.9 Volatile Organic Vapor Sensor

References

Chapter 3

Chemical Sensors and Biosensors Based on Impedimetric Interdigitated Electrode Array Transducers

Introduction

Impedance Technique

Application of IDEA Devices

Enzyme Biosensors

IDEA Devices Sensitive to Ions and Molecular Species

Immunosensors

DNA Sensors

Bacteria, Cells and Other Receptors

IDEA Design and Fabrication

Acknowledgment

Chapter 4

Optosensors for (Bio) Chemical Analysis Based on Phosphorescence Detection

1.1. Basic Principles of Phosphorescence

1.2. Phosphorescence versus Fluorescence

2. Experimental Conditions to Achieve Room Temperarure Phosphorescence

2.1. Influence of Environment on Phosphorescence

2.1.1. Phosphorescence in organized media

2.1.2. Phosphorescence in non-protected media

2.1.3. Phosphorescence in solid supports

2.2. Room Temperature Phosphorescence Measurement Approaches for Analytical Determinations and Sensing

3. Analytical Room Temperature Phosphorescence Measurement Modes and Methods

3.1. Lifetime Measurements

3.2. Ratiometric Measurements

3.3. Energy Transfer-Room Temperature Phosphorescence.

4. Selected Applications of Room Temperature Phosphorescence Detection for Optical Sensing

4.1. Sensors for Gases

4.1.1. Oxygen sensors

4.1.2. Carbon dioxide sensors

4.1.3. Nitrogen and sulphur oxides sensors

4.1.4. Humidity sensors

4.2. Sensors for Cations and Anions

4.3. Sensors for Organic Compounds

4.4. Biosensors

4.5. In Vivo Applications

4.6. Photodynamics Therapy Based on Phosphorescence Probes

5. Present Trends in Room Temperature Phosphorescence Sensing

Chapter 5

Non-Specific Chemical Gas Sensor Arrays for Environmental Monitoring of Odour Emissions: A Review

Summary

2. Principles of Non-Specific Gas Sensor Arrays

3. Chemical Sensors Employed in Sensor Array Systems

4. Application of Non-Specific Gas Sensor Arrays to Odour Monitoring

4.1 Issues Concerning Current Odour Measurement Techniques

4.2 Issues Regarding Use of Sensor Arrays for Odour

Monitoring

4.3 Application of Sensor Arrays to Odour Monitoring

5. Signal Processing and Pattern Classifiers for Non-Specific Gas Sensor Arrays

5.1 Signal Processing Procedure

5.2 Pattern Recognition towards Developing a Classifier

5.2.1 Graphical analysis

5.2.2 Multivariate analysis

5.2.3 Supervised/unsupervised

5.2.4 Linear/non-linear

5.2.5 Artificial neural network

6. The Future of Sensor Arrays for Odour Monitoring

Chapter 6

Amperometric Biosensor Based on Laccase and Meldola's Blue Coimmobilized on Oxidized Multi-Wall Carbon Nanotubes for Phenol Compounds Determination

2. Experimental

2.1. Reagents

2.2. Carboxylation of MWCTS

2.3. Mediator Adsorption on Multi-Wall Carbon Nanotubes

2.4. Biosensor Preparation Using MWCT

2.5. Electrochemical Measurements

3. Results and Discussion.

3.1. Mechanism of the Biosensor Containing Laccase

3.2. Optimization of the Biosensor Preparation

3.2.1 Effect of EDC amount on enzyme immobilization

3.3. Optimization of the Biosensor Response

3.4. Sensor Characteristics

3.5. Effect of Different Phenolic Substrates

Acknowledgments

Index.

Notes:

Description based upon print version of record.

Includes bibliographical references and index.

Description based on print version record.

ISBN:

1-61209-097-4

OCLC:

676696290