Abstract:
The electron tunneling device (110) includes first and second non-insulating layers (112 and 114) spaced apart such that a given voltage can be provided therebetween. The device also includes an arrangement disposed between the non-insulating layers and configured to serve as a transport of electrons between the non-insulating layers. This arrangement includes a first layer (116) of an amorphous material such that using only the first layer of amorphous material in the arrangement would result in a given value of a parameter in the transport of electrons, with respect to the given voltage. The arrangement further includes a second layer (118) of material, which is configured to cooperate with the first layer (116) of amorphous material such that the transport of electrons includes, at least in part, transport by tunneling, and such that the parameter, with respect to the given voltage, is increased above the given value of the parameter.
Abstract:
The present invention relates to pharmaceutical compositions capable of specifically inducing cell death in the proliferating angiogenic endothelial cells associated with solid tumors and other angiogenesis associated diseases. More specifically, the present invention relates to nucleotide constructs that are selectively active in angiogenic endothelial cells and that encode highly toxic agents, such as diphtheria toxin, for expression in such cells.
Abstract:
The present invention relates to methods and compositions for visualization of the toxic effects of transgenes in vivo. In particular, the present invention provides methods and compositions for the production and use of transgenic, including dually transgenic, Caenorhabditis elegans for visualization of the toxic effects of beta -amyloid accumulation in vivo.
Abstract:
The present invention provides methods and devices for producing particles with an average diameter less than about 15μm using the precipitation with compressed fluid-antisolvent (PCA) process and the carbon-dioxide assisted nebulization with a bubble dryer (CAN-BD) process. In the methods and nozzles of the invention, at least one jet of supercritical or near-supercritical fluid and at least one jet of solution interact to mix the supercritical or near-supercritical fluid and the solution within a chamber. The solution contains at least one solvent and at least one solute. At least one of the jets is a swirling jet. To form particles, the solvent and supercritical or near-supercritical fluid are then injected into a PCA or a CAN-BD process chamber. The degree of mixing depends in part on the power input into the mixing chamber. Power inputs of about 6.5xl0 9 W/m 3 enhance the degree of mixing and allow production of nanoscale particles with the PCA process. The nanoscale particles have a size distribution so that polydispersity is less than about 1.75.
Abstract translation:本发明提供了使用压缩流体 - 反溶剂(PCA)沉淀法和用气泡干燥器(CAN-BD)方法进行二氧化碳辅助雾化来生产平均直径小于约15μm的颗粒的方法和装置。 在本发明的方法和喷嘴中,至少一个超临界或近超临界流体射流和至少一个溶液射流相互作用以将超临界或近超临界流体和溶液混合在腔室内。 该溶液含有至少一种溶剂和至少一种溶质。 至少有一架喷气式飞机是旋流式飞机。 为了形成颗粒,然后将溶剂和超临界或近临界流体注入PCA或CAN-BD处理室中。 混合程度部分取决于输入混合室的功率。 约6.5×10 9 W / m 3的功率输入增强了混合的程度,并允许用PCA工艺生产纳米级颗粒。 纳米级颗粒具有尺寸分布,使得多分散性小于约1.75。
Abstract:
Provided are methods to deliver drugs to the middle or inner ear of a mammal in need of such drug comprising inserting a composition comprising a biocompatible polymer and at least one pharmacologically active agent. More particularly, the invention relates to a method for treating Meniere's disease using a composition of hyaluronic acid and gentamicin.
Abstract:
The present invention relates to formulations and methods for preventing and treating liver injury and fibrosis in cholestasis. This is accomplished by the administration of a composition which includes selected antioxidants.
Abstract:
The present invention provides extended depth of focus (EDF) to human eyes by modifying contact lenses, interocular implants, or the surface of the eye itself. This is accomplished by applying selected phase variations to the optical element in question (for example, by varying surface thickness). The phase variations EDF-code the wavefront and cause the optical transfer function to remain essentially constant within some range away from the in-focus position. This provides a coded image on the retina. The human brain decodes this coded image, resulting in an in-focus image over an increased depth of focus.
Abstract:
Pot1p, a protein identified in humans, Schizosaccharomyces pombe , and mouse, binds single-stranded telomeric DNA and both stabilizes chromosome ends and regulates telomerase activity. Compounds that stabilize or disrupt the Pot1p-DNA interaction will be useful in regulating the telomere length of a cell. Because telomere length is involved in the regulation of cellular life-span, the life-span of useful cell populations may be prolonged or undesirable cells may be caused to cease proliferation. The identification of a Pot1 protein and its encoding DNA provides methods of screening useful compounds or diagnosing illnesses that involve altered expression or structure of a Pot1 protein or gene.