Abstract: An illuminated white cane is disclosed herein. The white cane has two translucent tubular sections which may contain a flexible illumination circuit. Each tubular section may have a red portion and a white portion, through which the illuminator circuit is able to transmit light. An elastic cord may pass through the two sections in parallel to the illuminator circuit, being anchored to a handle and handle core at one end, and a cane-tip bushing with a threaded retainer at the other end. The two tubular sections join with two bushings that are retained together by the tension of the elastic cord.

Abstract: An illuminated white cane is disclosed herein. The white cane has two translucent tubular sections which may contain a flexible illumination circuit. Each tubular section may have a red portion and a white portion, through which the illuminator circuit is able to transmit light. An elastic cord may pass through the two sections in parallel to the illuminator circuit, being anchored to a handle and handle core at one end, and a cane-tip bushing with a threaded retainer at the other end. The two tubular sections join with two bushings that are retained together by the tension of the elastic cord.

Abstract: A device and method for making a microfluidic separation device. A microfluidic separation device could include a microfluidic column having an inlet, the microfluidic column being configured to hold a first fluid and the microfluidic column including a porous portion, and an outlet attached to the microfluidic column, the outlet being configured to output a second fluid. The method may include providing a microfluidic column having an inlet, configuring the microfluidic column to hold a first fluid, forming a porous portion in the microfluidic column, and attaching an outlet to the microfluidic column.

Abstract: A device and method for making a microfluidic separation device. A microfluidic separation device could include a microfluidic column having an inlet, the microfluidic column being configured to hold a first fluid and the microfluidic column including a porous portion, and an outlet attached to the microfluidic column, the outlet being configured to output a second fluid. The method may include providing a microfluidic column having an inlet, configuring the microfluidic column to hold a first fluid, forming a porous portion in the microfluidic column, and attaching an outlet to the microfluidic column.

Abstract: An external in-line valve for use in microfluidic devices constructed of elastomer such as polydimethylsiloxane (PDMS) is described. The valve is actuated by a permanent magnet and a metal bar that press together the polymer walls of a channel. The metal bar is pulled downward by a small NdFeB magnet below the channel, simultaneously pushing the thin layer of PDMS down, closing the channel, and stopping flow of fluid. Operation of the valve is dependent on thickness of the PDMS layer, height of the channel, the gap between chip and magnet, and magnet strength. The valve allows for fabrication of a “thin chip” that allows for detection of chromophoric species within the microchannel via an external fiber optics detection system. C18-Modified reverse phase silica particles are packed into the microchannel using a temporary taper created by the magnetic valve. Separations using both pressure and electrochromatographic driven methods are detailed.

Abstract: A device and method for making a microfluidic separation device. A microfluidic separation device could include a microfluidic column having an inlet, the microfluidic column being configured to hold a first fluid and the microfluidic column including a porous portion, and an outlet attached to the microfluidic column, the outlet being configured to output a second fluid. The method may include providing a microfluidic column having an inlet, configuring the microfluidic column to hold a first fluid, forming a porous portion in the microfluidic column, and attaching an outlet to the microfluidic column.

Abstract: A simple, external in-line valve for use in microfluidic devices constructed of elastomer such as polydimethylsiloxane (PDMS) is described. The actuation of the valve is based on the principle that flexible polymer walls of a liquid channel can be pressed together by the aid of a permanent magnet and a small metal bar. In the presence of a small NdFeB magnet lying below the channel of interest, the metal bar is pulled downward simultaneously pushing the thin layer of PDMS down thereby closing the channel stopping any flow of fluid. The operation of the valve is dependent on the thickness of the PDMS layer, the height of the channel, the gap between the chip and the magnet and the strength of the magnet. The microfluidic channels are completely closed to fluid flows commonly used in microfluidic applications. The valve allows for fabrication of a “thin chip” that allows for detection of chromophoric species within the microchannel via an external fiber optics detection system.

Abstract: A pair of pajama pants with incorporated knee pillows including pajama bottoms comprised of a pair of legs adapted for receiving legs of a person therein. The pair of legs have inner seams and outer seams. A pair of pockets are secured to the inner seams of the pair of legs of the pajama bottoms. The pair of pockets are positioned to be aligned with the knees of the legs of the person. A pair of pillows are dimensioned for being received within the pair of pockets.