摘要:
A two-step high density plasma-CVD process is described wherein the argon content in the film is controlled by using two different argon concentrations in the argon/silane/oxygen gas mixture used for generating the high density plasma. The first step deposition uses high argon concentration and low sputter etch-to-deposition (E/D) ratio. High E/D ratio maintains the gap openings without necking. In the second step, a lower argon concentration and lower E/D ratio are used. Since observed metal defects are caused by argon diffusion in the top 200-300 nm of the HDP-CVD film, by controlling argon concentration in the top part of the film (i.e. second step deposition) to a low value, a reduced number of metal defects are achieved.
摘要:
A method and device for recording data of a terminal are disclosed. The method includes: setting a relation condition list for triggering recording among function modules, and setting a corresponding random probability generator for each function module; determining whether to start recording data, and whether to end the data recording operation in accordance with the relation condition list or the random probability generator, during the operation process of each function module; and sending the respective data packets obtained by recording to a data management module for storage after the data record operation of each function module is ended. By adopting the method and device, fuzzy recording can be performed on data of the terminal, and data of different function modules can be stored centrally, and a query operation is simplified.
摘要:
The invention in some aspects relates to recombinant adeno-associated viruses having distinct tissue targeting capabilities. In some aspects, the invention relates to gene transfer methods using the recombinant adeno-associate viruses. In some aspects, the invention relates to isolated AAV capsid proteins and isolated nucleic acids encoding the same.
摘要:
The invention provides novel berbamine derivatives, and compositions or pharmaceutical compositions thereof. These berbamine derivatives have shown higher potency in killing cancer/tumor cells comparing to berbamine, and can be used in cancer/tumor treatments.
摘要:
One aspect of the invention relates to novel isatin derivative compounds and the pharmaceutical composition thereof. Another aspect of the invention relates to methods of using the isatin derivative compounds disclosed herein and the pharmaceutical compositions thereof. In certain embodiments, the method is used to treat a cancer or a tumor in a subject including, without limitation, prostate cancer, melanoma, pancreatic cancer, ovarian cancer, and lymphoma. In certain embodiment, the method is used to treat a condition in a subject that can be regulated by the activation of one or more proteins such as EGFR, Erk1/2, Her2/Neu, Jak2, Src, Stat3, Akt, Cyclin B1, and Cdc25C. In certain embodiment, the method is used to treat a condition in a subject that can be regulated by the disruption of microtubule formations.
摘要:
The invention in some aspects relates to methods and compositions for assessing the effectiveness of miRNA inhibitors. In other aspects of the invention, methods and compositions for treating cholesterol related disorders are provided. In one aspect of the invention, miRNA inhibitors against miR-122 and rAAV-based compositions comprising the same are provided.
摘要:
Methods and systems for injecting a sample during electrophoresis, that generally comprise: loading a sieving matrix through a first end of a separation channel; having the an end of the sieving matrix at a set distance from the intersection of the separation channel and a loading channel; pressure loading a sample through the loading channel and filling an empty portion of the separation channel; applying an electric field across the separation channel while flowing a washing buffer through the loading channel; and injecting a portion of the sample into the separation channel, wherein the portion of the sample injected is of a size that is determined by a distance between the end of the sieving matrix and the intersection of the loading and separation channels.
摘要:
A microchip for capillary electrophoresis is provided. The microchip comprises an injection channel and a separation channel configured to receive a sample through a sample well disposed on a first end of the separation channel; wherein the injection channel and the separation channel intersect to form a ‘T’ junction. The microchip further comprises a first valve disposed adjacent to the ‘T’ junction and on the separation channel and a second valve disposed at the ‘T’ junction. The second valve is a two-way valve. A sample plug is injected into an area between the ‘T’ junction and a second end of the separation channel.
摘要:
A microfluidic device with a vertical injection aperture is provided. The microfluidic device comprises a separation channel, an injection aperture disposed adjacent to and in fluid communication with the separation channel. The microfluidic device further comprises a semi-permeable filter disposed adjacent to the injection aperture, wherein the filter is configured to preconcentrate a sample in the injection aperture to form a preconcentrated sample plug during an injection operation, and wherein the sample plug flows downwardly from the injection aperture to the separation channel during an electrophoresis operation.
摘要:
A microfluidic device including at least one microfabricated electrochemical flow cell and method of manufacturing such a device are disclosed herein. The electrochemical cell comprising at least a substrate, wherein the substrate has a front face and a back face; a channel wall bonded to the front face of the substrate without using a spacer, wherein the wall and the substrate define a microchannel having an inlet for receiving a fluid and an outlet for transmitting the fluid; a plurality of electrodes inside the microchannel, wherein said plurality of electrodes comprises one or more working electrodes and one or more counter electrodes, wherein the fluid flows over the surface of the plurality of electrodes and wherein optionally a length of the microchannel over the one or more working electrodes is greater than a height of the microchannel over the one or more working electrodes. Other peripherals may also be included in the microfluidic device of the current invention, including an electrospray ionization (ESI) nozzle, one or more detectors, a chromatographic column, etc. each of which may be microfluidically coupled to the electrochemical flow cells to create more complicated analytic devices.