Chemical sensors [electronic resource] : fundamentals of sensing materials. Volume 2, Nanostructured materials / edited by Ghenadii Korotcenkov.

Format:

Book

Contributor:

Korotchenkov, G. S. (Gennadiĭ Sergeevich)

Language:

English

Subjects (All):

Chemical detectors.

Nanostructured materials.

Nanotechnology.

Physical Description:

1 online resource (402 p.)

Edition:

1st ed.

Place of Publication:

[New York, N.Y.] (222 East 46th Street, New York, NY 10017) : Momentum Press, 2010.

Language Note:

English

Summary:

Nanomaterials and nanotechnology are new fields of science and technology. Fundamentally, nanotechnology is about manipulating and making materials at the atomic and molecular levels. It is expected that nanotechnology will change solid-state gas sensing dramatically and will probably gain importance in all fields of sensor application over the next 10 to 20 years. Nanotechnology is still in its infancy, but the field has been a hot area of research globally since a few years ago. It has been found that with reduction in size, novel electrical, mechanical, chemical, catalytic, and optical properties can be introduced. As a result, it has been concluded that one-dimensional structures will be of benefit for developing new-generation chemical sensors that can achieve high performance. Therefore, in the last decade, the study of 1-D materials has become a primary focus in the field of chemical sensor design. Synthesis of new nano objects and exploitation of their extraordinary properties is the goal and dream of many researchers engaged in the field of sensor design. In addition, it has also been established that 1-D structures may be ideal systems in which to study the nature of chemical sensing effects.

Contents:

Preface to Chemical sensors: fundamentals of sensing materials

Preface to volume 2: Nanostructured materials

About the editor

Contributors

1. Introduction to nanomaterials and nanotechnology / G. Korotcenkov, B. K. Cho

What are nanomaterials?

A brief history of nanotechnology

What distinguishes nanomaterials from bulk materials?

Nanomaterials manufacturing

Nanotechnology and its possibilities

Nanotechnology: future trends

Acknowledgments

References

2. Quasi-one-dimensional metal oxide structures: synthesis, characterization, and application as chemical sensors / Pai-Chun Chang, Dongdong Li, Jia G. Lu

Introduction

Synthesis of Q1D nanomaterials

Vapor-phase growth methods

Solution-phase growth methods

Template-based growth methods

Electrical transport properties and optical characteristics

Nanowire field-effect transistors and electrical properties

Photoluminescence characteristics

Metal oxide nanowire chemical sensors

Sensor device fabrication

Mechanism of nanowire sensor detection

Other types of Q1D structured sensors

Summary and future outlook

3. Carbon nanotubes and fullerenes in chemical sensors / G P. Kotchey, A. Star

History of fullerenes and carbon nanotubes

Structure of fullerenes

Structure of carbon nanotubes

Synthesis of fullerenes and carbon nanotubes

Synthesis of fullerenes

Synthesis of carbon nanotubes

Properties of carbon nanotubes

Physical/mechanical properties

Electronic properties

Spectroscopic properties

Chemical modification and functionalization of carbon nanotubes

Noncovalent functionalization

Covalent functionalization

Solid-state electrical conductivity CNT sensors

Nanotube FET for gas-sensing applications

NO2 detection using resistivity measurements

Gas and vapor detection using functionalized CNTs

Chemicapacitors

Employing NTFETs for protein detection

Conductometric glucose biosensor

Raman sensors

A Surface-Enhanced Raman Scattering (SERS)-based pH sensor

"Multicolored" Raman probes for biological imaging and detection

Optical sensors

Employing SWNTs as fluorophores for long-term optical glucose

Sensing

Employing spectroscopic properties of SWNTs to detect DNA hybridization

Electrochemical sensors

Employing electrochemistry to monitor DNA hybridization

Electrochemical-based glucose sensing

Field-emission sensors

A CNT-based triode sensor that employs the field-emission effect to detect gas density

Electromechanical resonators

Nanomechanical nanotube resonators for the detection of evaporated chromium atoms

Surface Acoustic Wave (SAW) devices that employ Buckminsterfullerene (C60) for the detection of toxic organic vapors

Outlook

4. Sensors based on monolayer-capped metallic nanoparticles / U. Tisch, H. Haick

Synthesis of MCNPs and deposition of solid MCNP films

Synthesis of MCNPs

Surface functionalization of metal nanoparticles

Methods of MCNP film deposition

Four good reasons to use monolayer-capped metallic nanoparticles for chemical sensing

Controllable chemical composition

Controllable size and shape

Controllable nanoparticle assembly

Biocompatibility

Chemical sensors based on MCNPs

Basic principles

"Lock-and-key" sensor versus "electronic nose"

The role of the number of nanoparticles in chemical sensing

Categories of MCNP-based chemical sensors

Chemiresistors

Piezoelectric sensors

Concluding remarks

5. Porous semiconductors: advantages and disadvantages for gas sensor applications / G. Korotcenkov

Porous semiconductors: principles of fabrication and properties

Principles of porous silicon fabrication

Properties of porous silicon

Techniques for forming the porous silicon layer

Porosification of standard semiconductors

Gas sensors based on porous semiconductors, approaches and characteristics

Capacitance-type gas sensors

Gas sensors employing photoluminescence quenching

Sensors based on optical measurements

Conductometric-type gas sensors

Gas sensors based on Schottky barriers and heterostructures

Gas sensors based on measurement of contact potential difference

Gas sensors based on simultaneous control of several parameters of the porous material

Disadvantages of porous semiconductor gas sensors

Surface modification of porous semiconductors to improve gas-sensing characteristics

Advantages of porous silicon for applications in micromachining sensor technology

6. Ordered mesoporous films and membranes: synthesis, properties, and applications in gas sensors / M. Tiemann

Porosity in resistive gas sensors

Categories of porosity

Gas diffusion in porous materials

Porous films for selective gas sensing

Other porosity-related nanostructural aspects

Synthesis methods

Mesoporous metal oxides by conventional synthesis methods

Mesoporous materials by supramolecular structure directors

Mesoporous materials by structure replication

Summary

7. Chemical sensors based on zeolites / R. Moos, K. Sahner

Zeolites, properties and applications

Zeolites as an auxiliary phase in chemical sensors

Zeolites as host materials

Zeolites as filters

Zeolites as preconcentrators

Zeolites as templates

Zeolites as the functional (sensitive) phase

Adsorptivity

Ionic conductivity

Catalytic activity

Conclusion

8. Nanocomposites: from fabrication to chemical sensor applications / Rajesh, T. Ahuja, D. Kumar

Types of nanocomposites

General approaches to nanocomposite fabrication

Metal oxide-based nanocomposites

Synthesis

Properties

Application in chemical sensors

Polymer-based nanocomposites

Carbon nanotube-based nanocomposites

Noble metal-based nanocomposites

Acknowledgment

Index.

Notes:

Description based upon print version of record.

Includes bibliographical references and index.

Title from PDF t.p. (viewed on October 24, 2010).

ISBN:

1-283-89558-7

1-60650-108-9

OCLC:

819592943