Abstract:
A portable electrophoretic contactless conductivity detection (C4D) system for analysis on a microfluidic chip houses in one embodiment a fluidic compartment for receiving the microfluidic chip, and four detection electrodes: first and second emitting electrodes, and first and second receiving electrodes. The first emitting electrode and the first receiving electrode are adjacent to a first channel wall of the microfluidic chip, and the second emitting electrode and the second receiving electrode are adjacent to a second channel wall, where the second channel wall is opposite to the first channel wall. In an embodiment, the electrodes are provided as portions of a removable cartridge cell.
Abstract:
A method of making a substrate having multi-layered structures thereon, the method comprising the steps of (a) applying a mold having an imprint forming surface to the substrate to form an array of imprint structures that projects from the substrate; and (b) applying a lateral force that is substantially normal to said projecting imprint structures to cause said imprint structures to move angularly towards said substrate and thereby form a pattern of multi-layered structures thereon.
Abstract:
A method of forming a high aspect ratio adhesive structure, the method comprising fabricating a porous template comprising at least a first tier and a second tier; introducing a softened polymer into the template; and separating the polymer from the template.
Abstract:
A method of making a substrate having multi-layered structures thereon, the method comprising the steps of (a) applying a mold having an imprint forming surface to the substrate to form an array of imprint structures that projects from the substrate; and (b) applying a lateral force that is substantially normal to said projecting imprint structures to cause said imprint structures to move angularly towards said substrate and thereby form a pattern of multi-layered structures thereon.
Abstract:
The present invention provides a variable focus fluid lens wherein the focal length is controllable by changing the contact angle of a fluid meniscus. A liquid (20), such as water, is filled in a tubular housing (10) with an internal surface including adjacent hydrophilic (40) and hydrophobic (30) areas or regions, wherein the boundary between the hydrophilic and hydrophobic regions constrains the liquid (20) and presents a meniscus (50) having a curvature defined, in part, by the static contact angle at the boundary. When a control pressure is applied to the liquid (20), the curvature of the meniscus (50) varies as the contact angle of the liquid changes at the boundary.
Abstract:
The contactless conductivity detector in one embodiment includes a microfluidic chip having a channel (102) thereon and four detection electrodes: first and second emitting electrodes (100a, 101a), and first and second receiving electrodes (100b, 101b). The channel (102) is defined by channel walls. The first emitting electrode (100a) and the first receiving electrode (100b) are adjacent a first channel wall, and the second emitting electrode (101a) and the second receiving electrode (101b) are adjacent a second channel wall, the second channel wall being opposite the first channel wall.
Abstract:
A method of forming a high aspect ratio adhesive structure, the method comprising fabricating a porous template comprising at least a first tier and a second tier; introducing a softened polymer into the template; and separating the polymer from the template.
Abstract:
A portable electrophoretic contactless conductivity detection (C4D) system for analysis on a microfluidic chip houses in one embodiment a fluidic compartment for receiving the microfluidic chip, and four detection electrodes: first and second emitting electrodes, and first and second receiving electrodes. The first emitting electrode and the first receiving electrode are adjacent to a first channel wall of the microfluidic chip, and the second emitting electrode and the second receiving electrode are adjacent to a second channel wall, where the second channel wall is opposite to the first channel wall. In an embodiment, the electrodes are provided as portions of a removable cartridge cell.
Abstract:
The contactless conductivity detector in one embodiment includes a microfluidic chip having a channel (102) thereon and four detection electrodes: first and second emitting electrodes (100a, 101a), and first and second receiving electrodes (100b, 101b). The channel (102) is defined by channel walls. The first emitting electrode (100a) and the first receiving electrode (100b) are adjacent a first channel wall, and the second emitting electrode (101a) and the second receiving electrode (101b) are adjacent a second channel wall, the second channel wall being opposite the first channel wall.