Abstract:
A structure for surface enhanced Raman spectroscopy is disclosed herein. The structure is made up of a substrate, a self-assembled layer of first metal particles established on the substrate, and a self-assembled layer of second metal particles established such that the second metal particles are positioned at interstitial spaces between the first metal particles. The first metal particles have a first predetermined diameter, and the second metal particles have a second predetermined diameter that is smaller than the first predetermined diameter.
Abstract:
A memristor having an active region includes a first electrode. The first electrode comprises a nanostructure formed of at least one metallic single walled nanotube. The memristor also includes a second electrode formed of at least one metallic single walled nanotube. The second electrode is positioned in a crossed relationship with respect to the first electrode. The memristor further includes a switching material positioned between the first electrode and the second electrode, in which the active region is configured to form in the switching material at a cross point of the first electrode and the second electrode.
Abstract:
System for trapping and stretching biomolecules. A microfluidic device includes a symmetric channel forming a T-shaped junction at a narrow center region and three wider portions outside the center region. At least one power supply is provided to generate an electric potential across the T-shaped junction to create a local planar extensional field having a stagnation point in the junction whereby a biomolecule introduced into the microfluidic device is trapped at the stagnation point and stretched by the extensional field.
Abstract:
A roller imprinting apparatus avoiding the drawbacks of deformation of the imprinting apparatus, incomplete imprint and side collapse upon mold stripping is disclosed to include a plurality of transmission rollers respectively spaced from one another at a distance, an imprinting belt extending around the transmission rollers and carrying one or a number of imprint structures and defining a imprinting zone and adapted for imprinting the imprint structures in a substrate, and a curer disposed corresponding to the imprinting zone and adapted for curing the substrate being imprinted with the imprinting belt.
Abstract:
An optical fiber tip comprises a core and a recess formed in said core at a distal end of the optical fiber tip, said recess having a vertex within said core.
Abstract:
The invention relates to methods and devices for characterizing tissue in vivo, e.g., in walls of blood vessels, to determine whether the tissue is healthy or diseased.
Abstract:
Mesoporous carbon and silica containing composites are prepared based on the co-assembly of a suitable surfactant in a liquid medium. When a low molecular weight carbonizable polymer and a silica precursor are added to the surfactant solution, a mixture of distinct phases of the materials is formed after solvent evaporation. A polymer/silica solid composite with highly organized mesopores is obtained after surfactant removal. This product has utility as a catalyst support or gas absorbent. And the polymer-silica composite can be easily converted successively to a mesoporous carbon-silica composite and to a bimodal mesoporous carbon material.
Abstract:
The present invention provides a composite plate device for a thermal transpiration micropump apparatus. The provided composite plate device includes a substrate having a plurality of flow channels and a plurality of templates with closed sidewalls, wherein the plurality of flow channels allow fluid to flow therethrough and have a feature length larger than or equal to the mean free path length of the fluid. The provided composite plate device further includes a porous material that is filled in the plurality of templates of the substrate, wherein the porous material allows the fluid to flow therethrough and has an equivalent pore diameter smaller than or equal to the mean free path length of the fluid.
Abstract:
A detecting device for biochemical detections is provided. The detecting device includes a first substrate, a magnetic layer located on the first substrate, an isolation layer located on the magnetic layer, at least a first electrode located on the isolation layer, a first dielectric layer located on the first electrode, a first hydrophobic layer located on the first dielectric layer, a second substrate, at least a second electrode located on the second substrate and having a cathode and an anode, a second dielectric layer located on the second electrode and a second hydrophobic layer located on the second dielectric layer. The first electrode is zigzag-shaped, and the cathode and the anode of the second electrode are comb-shaped and interlaced with each other.
Abstract:
A biochemical detecting device for separating a reagent, a plurality of magnetic beads and a target from a mixture, and detecting the target is provided. The biochemical detecting device includes a first substrate, at least two first electrode sets located on the first substrate, a second electrode set located on the first substrate and between the two first electrode sets, and a second substrate covering the first substrate, each of the first electrode sets and the second electrode set. Accordingly, the movement of the mixture is digitally controlled by the provided biological detecting device.