Single-wall carbon nanotubes (CNTs) belong to a unique class of one-dimensional nanostrcutures due to their all-carbon structure coupled with their very high aspect (at least 1000:1) and surface-tovolume ratios. Unlike bulk wires, charge variations on the surface of CNTs cause distinct changes in their electronic properties. These aspects make CNTs promising components for electrical biosensors...

For biodetection of mutagenic pollution of marine environments, an organism naturally occurring in these habitats should be used. We found that marine bacterium Vibrio harveyi may be an appropriate bioindicator of mutagenic pollution. For positive selection of mutants, we developed a simple method for isolation of V. harveyi mutants resistant to neomycin. We constructed genetically modified V. ...

Semiconductor nanocrystal quantum dots are utilized in numerous applications in nano- and biotechnology. In device applications, where several different material components are involved, quantum dots typically need to be assembled at explicit locations for enhanced functionality. Conventional approaches cannot meet these requirements where assembly of nanocrystals is usually material-nonspecifi...

Sensing biological agents at the genomic level, while enhancing the response time for biodetection over commonly used, optics-based techniques such as nucleic acid microarrays or enzyme-linked immunosorbent assays (ELISAs), is an important criterion for new biosensors. Here, we describe the successful detection of a 35-base, single-strand nucleic acid target by Hall-based magnetic transduction ...

Label-free biodetection schemes compatible with standard CMOS fabrication methods constitute an important goal, as these are enabling tools for the mass production of high-sensitivity biosensors. Two-dimensional slab photonic crystal (2D slab-PhC) sensors have been posited as ultrahigh-sensitivity detection components, but to date recognition-mediated detection of viruses or simulants under flo...

This review focuses on the growth, properties and novel applications of aligned arrays of ZnO nanowires (NWs) and nanobelts (NBs) for nanogenerators and nano-piezotronics. Owing to the semiconducting and piezoelectric dual properties of ZnO crystals, novel applications are introduced using aligned ZnO NWs, such as nanogenerators. These unique properties and applications will have profound impac...

In this work, Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS), Principal Component Analysis (PCA) and X-ray Photoelectron Spectroscopy (XPS) have been used to characterize the surface chemistry of gold substrates before and after functionalization with thiol-modified glucose self-assembled monolayers and subsequent biochemical specific recognition of maltose binding protein (MBP). The...

The response of ferrofluids to a high-amplitude AC magnetic field is important for several applications including hyperthermia and biodetection. In computer simulations the dynamic susceptibility ferrofluid outside linear region, there are problems associated with fact that an increase in frequency leads appearance additional computational errors, which can even lead unphysical results. this ar...