کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9801403 1515482 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nanostructured and nanoscale devices, sensors and detectors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Nanostructured and nanoscale devices, sensors and detectors
چکیده انگلیسی
In reduced dimensions, materials display characteristics quite different from their bulk behavior. Interestingly, most viruses, bacteria, pathogens, particles in gas phase and other chemical-biological agents, which form the basis of this investigation, also have comparable dimensions. Our present and ongoing investigation is aimed towards the detection of chemical and biological agents using nanostructured materials. We have studied nanotubes, nanoparticles, nanowires, and nanoporous materials for biocompatibility and subsequent detection. In addition, based on our field emission studies on carbon nanotubes, we have suggested device designs to detect environmental emission. Detection strategies and preliminary data from electrochemical sensors, atomic force microscopy, and surface plasmon resonance are presented for the detection of chemical-biological agents immobilized on layers of nanoparticles. As a critical step in the development of sensors/detectors, strategies for surface functionalization and immobilization for carbon nanostructures, nanoparticles, and nanoporous materials are also presented. Such devices display unique characteristics, morphological flexibility, and biocompatibility. The eventual objective of our investigation is to develop a nanotechnology based sensor platform that will enable the direct electrical, optical, or electro-optical detection of biological and chemical agents in a label-free, highly multiplexed format over a broad dynamic range.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science and Technology of Advanced Materials - Volume 6, Issues 3–4, April–May 2005, Pages 312-318
نویسندگان
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