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Biosensors are devices that detect the presence of microbials such
as bacteria, viruses or a range biomolecules, including proteins,
enzymes, DNA and RNA. For example, they are routinely applied for
monitoring the glucose concentration in blood, quality analysis of
fresh and waste water and for food control. Nanomaterials are ideal
candidates for building sensor devces: where in just a few
molecules can alter the properties so drastically that these
changes may be easily detected by optical, electrical or chemical
means. Recent advantages have radically increased the sensitivity
of nanomaterial-based biosensors, making it possible to detect one
particular molecule against a background of billions of others.
Focusing on the materials suitable for biosensor applications, such
as nanoparticles, quantum dots, meso- and nanoporous materials and
nanotbues, this text enables the reader to prepare the respective
nanomaterials for use in actual devices by appropriate
functionalization, surface processing or directed self-assembly.
The emphasis throughout is on electrochemical, optical and
mechancial detection methods, leading to solutions for today's most
challenging tasks. The result is a reference for researchers and
developers, disseminating first-hand information on which
nanomaterial is best suited to a particular application - and why.
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