SERS-Active Nanomaterials: A New Dimension in Sensing Nucleic Acids

Md Eaqub Ali; Asing Asing; Sharifah Bee Abd Hamid; Uda Hashim

doi:10.4028/www.scientific.net/AMR.925.490

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 925SERS-Active Nanomaterials: A New Dimension in...

SERS-Active Nanomaterials: A New Dimension in Sensing Nucleic Acids

Abstract:

Detection of nucleic acids has wide ranging applications in biomedical, food, forensic and environmental sciences as well as in anti-bioterrorism. The development of highly sensitive, cost-effective and miniaturized biosensors and biochips requires advanced technology coupled with fundamental knowledge in chemistry, biology, and material sciences. In general, sensors and chips feature two functional components: a recognition element that provides selective/specific binding with the target analytes and a transducer component for signaling the binding event. An efficient sensor relies heavily on these two components for the recognition process in terms of response time, signal-to-noise ratio (S/N), selectivity, and limits of detection. Thus designing biosensors with higher efficacy depends on the development of novel materials to improve both the recognition and transduction processes. Surface enhanced Raman scattering (SERS)-active nanomaterials feature unique physicochemical properties that can be of great utility in creating new recognition and transduction processes for chemical and biological sensors, improving the S/N ratio by miniaturization of the sensor elements. The surface of SERS-active nanomaterials needs to be tailored and decorated for immobilizing marker biomolecules and integration with chromophores. This paper has extensively reviewed various SERS-active nanomaterials along with their synthesis, surface modification and characterization schemes for nucleic acid sensing applications with atomic precision.

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Periodical:

Advanced Materials Research (Volume 925)

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490-494

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https://doi.org/10.4028/www.scientific.net/AMR.925.490

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Online since:

April 2014

Authors:

Md Eaqub Ali*, Asing Asing, Sharifah Bee Abd Hamid, Uda Hashim

Keywords:

Atomic Precision, Nucleic Acid Sensing, SERS-Active Nanomaterials

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