نتایج جستجو برای: nanolayer
تعداد نتایج: 299 فیلتر نتایج به سال:
We report use of U-shaped biconically tapered optical fibers (BTOF) as probes for label-free immunoassays. The tapered regions of the sensors were functionalized by immobilization of immunoglobulin-G (Ig-G) and tested for detection of anti-IgG at concentrations of 50 ng/mL to 50 µg/mL. Antibody-antigen reaction creates a biological nanolayer modifying the waveguide structure leading to a change...
We report measurements of the transient structural response of weakly photo-excited thin films of BiFeO3, Pb(Zr,Ti)O3, and Bi and time-scales for interfacial thermal transport. Utilizing picosecond x-ray diffraction at a 1.28 MHz repetition rate with time resolution extending down to 15 ps, transient changes in the diffraction angle are recorded. These changes are associated with photo-induced ...
Cadmium selenide nanorods, unique nanostructures which possess bright and up to 100% polarized photoluminescence, now can be arranged unidirectionally in a single line. The method is based on the chemical attachment of nanorods to the surface of a single cleaved semiconductor nanolayer and exploits a combination of wet-chemical and epitaxial growth techniques to produce templated semiconductor ...
The measurement of interfacial mechanical or rheological properties in polymer blends is a challenging task, as well providing quantitative link between these and the nanostructure. Here, we perform systematic study extensional rheology multilayer films an immiscible pair, polystyrene poly(methyl methacrylate). We take advantage multi-nanolayer coextrusion to increase number interfaces up thous...
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