Abstract: Microelectronic devices for harvesting kinetic energy and/or detecting motion, and associated systems and methods. Particular embodiments include an energy harvesting device for generating electrical energy for use by microelectronic devices, where the energy harvesting device converts to electrical energy the kinetic energy among or within the microelectronic devices and their packaging, and provides this electrical energy to power the microelectronic devices.

Abstract: In one aspect, the present invention provides devices for binding cells or molecules, wherein each device includes (a) a body defining a first surface and a second surface that is located opposite to the first surface; (b) a heater disposed upon the first surface; and (c) a temperature-responsive layer disposed upon the second surface. In another aspect, the present invention provides methods for binding molecules or living cells to a temperature-responsive material.

Abstract: In one aspect, the present invention provides devices for binding cells or molecules, wherein each device includes (a) a body defining a first surface and a second surface that is located opposite to the first surface; (b) a heater disposed upon the first surface; and (c) a temperature-responsive layer disposed upon the second surface. In another aspect, the present invention provides methods for binding molecules or living cells to a temperature-responsive material.

Abstract: Magnetically actuated fluid handling devices using magnetic fluid to move one or more fluids (gases or liquids or both) through microsized flow channels are provided. Fluid handling devices include micropumps and microvalves. Magnetically actuated slugs of magnetic fluid are moved within microchannels of a microfluidic device to facilitate valving and/or pumping of fluids and no separate pump is required. The magnets used to control fluid movement can be either individual magnets moved along the flow channels or one or more arrays of magnets whose elements can be individually controlled to hold or move a magnetic slug. Fluid handling devices include those having an array of electromagnets positioned along a flow channel which are turned on and off in a predetermined pattern to move magnetic fluid slugs in desired paths in the flow channel. The fluid handling devices of the present invention can handle gases and liquids simultaneously and thus can be made to be self-priming.

Abstract: Magnetically actuated fluid handling devices using magnetic fluid to move one or more fluids (gases or liquids or both) through microsized flow channels are provided. Fluid handling devices include micropumps and microvalves. Magnetically actuated slugs of magnetic fluid are moved within microchannels of a microfluidic device to facilitate valving and/or pumping of fluids and no separate pump is required. The magnets used to control fluid movement can be either individual magnets moved along the flow channels or one or more arrays of magnets whose elements can be individually controlled to hold or move a magnetic slug. Fluid handling devices include those having an array of electromagnets positioned along a flow channel which are turned on and off in a predetermined pattern to move magnetic fluid slugs in desired paths in the flow channel. The fluid handling devices of the present invention can handle gases and liquids simultaneously and thus can be made to be self-priming.

Abstract: Magnetically actuated fluid handling devices using magnetic fluid to move one or more fluids (gases or liquids or both) through microsized flow channels are provided. Fluid handling devices include micropumps and microvalves. Magnetically actuated slugs of magnetic fluid are moved within microchannels of a microfluidic device to facilitate valving and/or pumping of fluids and no separate pump is required. The magnets used to control fluid movement can be either individual magnets moved along the flow channels or one or more arrays of magnets whose elements can be individually controlled to hold or move a magnetic slug. Fluid handling devices include those having an array of electromagnets positioned along a flow channel which are turned on and off in a predetermined pattern to move magnetic fluid slugs in desired path in the flow channel. The fluid handling devices of the present invention can handle gases and liquids simultaneously and thus can be made to be self-priming.

Abstract: A torque measuring arrangement with a rotating torque measuring member adapted to be installed into the force flow of a force transmission, which includes a deformation area to which are bonded strain gauge strips adapted to be stressed by the torque to be measured and with a rotary transmitter for the rotating line connections of the strain gauge strips with fixed line connections; the torque measuring member extends disk-shaped essentially perpendicularly to the axis of rotation while a large number of apertures of predetermined mutually identical, preferably circular contour are arranged in the torque measuring member along predetermined radial positions and uniformly distributed over the circumference; the apertures leave therebetween essentially radially extending spoke-like webs whereby the axially measured wall thickness of the torque measuring member is considerably greater at least within the area of the apertures or webs than the width of the webs measured in the circumferential direction at the nar