Abstract: A cost-effective, scalable technique for producing microspheres loaded with biologically active solid proteins is provided. The microspheres degrade over time and release biologically active VEGF, as demonstrated by the proliferation of HUVECs in vitro compared to negative controls. A defined concentration of microspheres can deliver a quantifiable level of VEGF with known release kinetics. The invention can be used with other growth factors and applied to tissue engineering applications such as the regeneration of peripheral nerve, bone, adipose tissue, and solid organs.

Abstract: A cost-effective, scalable technique for producing microspheres loaded with biologically active solid proteins is provided. The microspheres degrade over time and release biologically active VEGF, as demonstrated by the proliferation of HUVECs in vitro compared to negative controls. A defined concentration of microspheres can deliver a quantifiable level of VEGF with known release kinetics. The invention can be used with other growth factors and applied to tissue engineering applications such as the regeneration of peripheral nerve, bone, adipose tissue, and solid organs.

Abstract: Asphalt handling apparatus includes a carriage portion, a hopper portion, a hopper heating portion, an asphalt dispensing portion, a liquid tack material dispensing portion and an equipment lifting portion. The hopper portion includes an elongated trough section with a generally V-shaped cross section. A pair of bi-fold doors selectively cover an open top section. The hopper heating portion includes an enclosed heat transfer medium first chamber disposed immediately below the V-shaped trough section and in direct contact therewith. The first chamber includes sloping wing sections and a deeper central section communicating therewith. A U-shaped burner channel is disposed substantially horizontally within the central section with a gas burner along a first arm and an exhaust stack extends upwardly from a second arm. An elongated electrical heating element is disposed between the arms.

Abstract: Individual electrical connections between two banks of electrodes can be made by the novel tape, a layer of which contains electrically conductive particles. Each particle has an electrically conductive surface and a ferromagnetic core by which the particles can be magnetically attracted to form nonintersecting stripes, each stripe containing a continuous array of contacting particles and hence being electrically conductive over both its length and thickness.

Abstract: A method of transferring, encapsulating, and fixing dried liquid toner images in electrography is provided. Stable, abrasion-resistant articles exhibiting continuous tone and transmission optical densities within the range of 0 to 4.0 are disclosed.