Nanostructured and nanoscale devices, sensors and detectors
By Ashok Vaseashta, D. Dimova‐Malinovska. 2005
217 citations recorded by the source corpus.
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 electrooptical detection of biological and chemical agents in a label-free, highly multiplexed format over a broad dynamic range.
Subfields: Electrochemistry, Materials Chemistry, Molecular Biology
View Paper: https://www.semanticscholar.org/paper/c5942728daeddb1bd35f9161b06016dfe51fadbe
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In Materials Chemistry
Citations in the corpus
- Characterization of enhanced antibacterial effects of novel silver nanoparticles (2007, background): “Nanotechnology is currently employed as a tool to explore the darkest avenues of medical sciences in several ways like imaging [3], sensing [4], targeted drug delivery [5] and gene delivery systems [6] and artificial implants [7].”
- Electrochemical biosensors for pathogen detection (2020, background): “The nanowire aspect ratio, defined as the ratio of the length to width, often ranges from 1 to greater than 10 (Hu et al. 1999; Vaseashta and Dimova-Malinovska, 2005; Wanekaya et al. 2006).”
- Strain specificity in antimicrobial activity of silver and copper nanoparticles. (2008, unknown): “, catalysis and sensors [7–9].”