» Biosensors

Health Care: Biosensors

Years from now, a typical doctor visit might not include dull magazines, pharmacy lines, and saying “Ahh.” Instead, a chip implanted in the body will function as a constant on-board doctor, detecting diseases early and delivering drugs straight into the bloodstream. Sound like an Orwellian/Asimov hybrid to be seen in an episode of a Jetsonic future space-age cartoon? Think again. Biosensors could make this scenario a reality before your toddler goes to college. Read More

Breaking Down the Blocks that Build Biosensors

Research and industry are increasingly exploiting the potential of aptamers. As well as their application in research, medical diagnosis and treatment, aptamers are also interesting as a basis for biosensors for use in environmental analysis because their characteristics enable them to identify and bind target molecules as surely as a key fits a lock. In a new book, researchers at the Helmholtz Centre for Environmental Research (UFZ) describe the methods used to obtain aptamers. A newly-approved project aims to develop new nanostructured biosensors to measure harmful substances in water. Read More

Biosensors for Environmental Monitoring Superfund Research Program

This was the first of two seminars on Biosensors for Environmental Monitoring sponsored by the NIEHS Superfund Basic Research Program and the Environmental Protection Agency (EPA) Technology Innovation Program. Dr. Michael Denison and Shirley Gee from the University of California, Davis (UC Davis) presented their work on the development of miniaturized, fast, sensitive bioassay systems for use in environmental research and monitoring at hazardous waste sites. Dr. Ian Kennedy, also from UC Davis, discussed his advances in nanotechnology and the use of MEMs (Micro Electro Mechanical system) fabrication techniques to make a micro-sized instrument for optical detection of trace amounts of chemicals in aqueous solutions. Read More

Biosensors for Environmental Applications: Future Development Trends

Biosensors can be excellent analytical tools for monitoring programs working to implement legislation. In this article, biosensors for environmental analysis and monitoring are extensively reviewed. Examples of biosensors for the most important families of environmental pollutants, including some commercial devices, are presented. Finally, future trends in biosensor development are discussed. In this context, bioelectronics, nanotechnology, miniaturization, and especially biotechnology seem to be growing areas that will have a marked influence on the development of new biosensing strategies in the next future. Read More

Biosensors for Environmental Monitoring

National Exposure Research Laboratory in Las Vegas (NERL-LV) is conducting research on biosensors for environmental monitoring applications. This research is designed to address a critical and growing need for real-time and in situ monitoring devices which can be used at Superfund sites and RCRA facilities, as well as for ground water monitoring. Because biosensor technology lends itself to fast, economical and continuous monitoring capabilities, development of these systems to complement classical analytical measurements is expected to result in a substantial cost benefit, especially when sample turnaround time and cost per analysis are important issues. Biosensors are currently being considered for development for detection of environmental pollutants such as phenols, genotoxins, and pesticides such as organophosphates, 2,4-D, etc. Read More

Affinity Biosensors Techniques and Protocols

Library Holdings A cutting-edge collection of detailed, step-by-step techniques and protocols for constructing, evaluating, and using affinity-based biosensors. Ideal for novices starting research in their field or experienced researchers wanting to use a biosensor for a specific analytical measurement, the methods detailed here allow biochemists, analytical chemists, microbiologists, and engineers to successfully apply biosensor technology to their specific problems. The techniques include the use of antibodies and membrane receptors to construct optical, thermal, acoustic, and electrochemically based biosensors. Additional techniques involve antibodies, receptors, nucleic acids, liposomes, and eukaryotic cells. A companion volume, Enzyme and Microbial Biosensors: Protocols and Techniques, by Mulchandani & Rogers, concentrates on enzyme-biosensors. Read More

Chemical Sensors and Biosensors

Library Holdings. Covering the huge developments in sensor technology and electronic sensing devices that have occurred in the last 10 years, this book uses an open learning format to encourage reader understanding of the subject. * An invaluable distance learning book * Applications orientated providing invaluable aid for anyone wishing to use chemical and biosensors Key features and subjects covered include the following: * Sensors based on both electrochemical and photometric transducers * Mass-sensitive sensors * Thermal-sensitive sensors * Performance factors for sensors * Examples of applications * Detailed case studies of five selected sensors * 30 discussion questions with worked examples and 80 self-assessment questions * 140 explanatory diagrams * An extensive bibliography Read More

Nanowire-Based Electrochemical Biosensors

We review recent advances in biosensors based on one-dimensional (1-D) nanostructure field-effect transistors (FET). Specifically, we address the fabrication, functionalization, assembly/alignment and sensing applications of FET based on carbon nanotubes, silicon nanowires and conducting polymer nanowires. The advantages and disadvantages of various fabrication, functionalization, and assembling procedures of these nanosensors are reviewed and discussed. We evaluate how they have been used for detection of various biological molecules and how such devices have enabled the achievement of high sensitivity and selectivity with low detection limits. Finally, we conclude by highlighting some of the challenges researchers face in the 1-D nanostructures research arena and also predict the direction toward which future research in this area might be directed. Read More

Biosensors and Bioelectronics

Library Holdings. Biosensors & Bioelectronics is the principal international journal devoted to research, design, development and application of biosensors and bioelectronics. It is an interdisciplinary journal serving professionals with an interest in the exploitation of biological materials and designs in novel diagnostic and electronic devices including sensors, DNA chips, electronic noses, lab-on-a-chip and ?-TAS. Read More

Biosensors for Analytical Monitoring References

Bibliography of references on environmental use of biosensors. Read More

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