Journal of Nanoscience and Nanotechnology
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Catalytic conversion of Undaria Pinnatifida over nanoporous materials using Py-GC/MS.
Catalytic pyrolysis of Undaria Pinnatifida was carried out over a nanoporous Al-SBA-15 catalyst for the first time. Pt nanoparticles were added to Al-SBA-15 to generate a Pt/Al-SBA-15 catalyst. The effect of the addition of the Pt nanoparticles on the catalytic pyrolysis was investigated. For rapid...
Fabrication and characterization of flexible thin film super-capacitor with silver nano paste current collector.
Flexible thin film super-capacitors with the silver paste current collector were printed and their electrochemical characteristics were investigated to apply for a low cost solution-based printing process. The silver paste current collector was printed on a flexible Polyethylene Telephtalate (PET) s...
Dielectrophoresis in a slanted microchannel for separation of microparticles and bacteria.
We describe a new DEP method for generating a nonuniform electrical field using a slanted microchannel. The electric field gradient is induced due to a slope in the channel and can be used to move and separate particles. Based on the gradual electric field induced by three dimensional structure of t...
Control of nanogeometry for advanced energy applications.
Incorporation of one-dimensional, large-surface-area, conductive nanofibers such as carbon nanotubes or 8 nm diameter TiO2 nanotubes into the dye-sensitized solar cell (DSSC) photo-anodes made of spherical TiO2 nanoparticles is shown to significantly improve the photocurrent density and the energy c...
Melamine nanosensing with chondroitin sulfate-reduced gold nanoparticles.
We developed a melamine nanosensor that provides a simplified method to detect melamine in infant formula. With an increase in the melamine concentration in the gold nanoparticle solution, the characteristic surface plasmon resonance band of gold nanoparticles at 530 nm decreased, whereas a new peak...
Synthesis and luminescent properties of Eu3+ activated SrWO4 nanocrystalline microspheres.
We synthesized the Eu3+ activated SrWO4 nanocrystalline microspheres by a simple and facile synthesis route. X-ray diffraction patterns exhibited a unique phase of SrWO4:Eu3+ scheelite structure with an average crystallite size of 58.9 nm. Fourier transform infrared spectra revealed the presence of...
Sensitive detection of microcystin-LR by using a label-free electrochemical immunosensor based on Au nanoparticles/silicon template/methylen...
A label-free electrochemical immunosensor, based on a gold nanoparticles (Au NPs)/silicon template/methylene blue (MB)/chitosan (CHIT) nanocomposite-modified electrode, was fabricated for the ultrasensitive detection of microcystin-LR (MC-LR). The nanocomposite film showed high binding affinity to t...
Development of nanogold-based lateral flow immunoassay for the detection of ochratoxin A in buffer systems.
Ochratoxin A (OTA), classified as a possible human renal carcinogen (group 2B), is a potent toxin as to cause the nephropathy. Many methods have been proposed and reviewed for OTA determination in food and agricultural products. However, current analytical procedures of mycotoxin are based on the ti...
Detection of gamma-irradiation effect on DNA and protein using magnetic sensor and cyclic voltammetry.
We applied in parallel a PHR sensor and CV device to monitor the irradiation effect on DNA and protein respectively. Through parallel measurements, we demonstrated that the PHR sensor and CV are sensitive enough to measure irradiation effect. The PHR voltage decreased by magnetic nanobead labeled DN...
Fabrication of a Ni nano-imprint stamp for an anti-reflective layer using an anodic aluminum oxide template.
Aluminum anodizing can alter pore diameter, density distribution, periodicity and layer thickness in a controlled way. Because of this property, porous type anodic aluminum oxide (AAO) was used as a template for nano-structure fabrication. The alumina layer generated at a constant voltage increased...