Abstract:
Apparatus and methods for performing mass spectrometry of a nanoparticle or virus analyte. Apparatus may include a laser desorption plate, a mass analyzer configured to measure mass over the range of m/z from 105 to 1010, an electrical shield surrounding the mass analyzer, and a charge sensitive detector, wherein the laser firing is phase lock synchronized with the applied radiofrequency voltages.
Abstract:
A measurement system for measuring a pressure of a fluid is provided. The measurement system includes a sensing module and a liquid electrical circuit. The sensing module includes a flexible film and a liquid electronic device. The flexible film has a first side and a second side opposite to the first side. The fluid is disposed on the first side of the flexible film, and the liquid electronic device is disposed on the second side of the flexible film. The flexible film converts the pressure of the fluid into a parameter of the liquid electronic device. The liquid electrical circuit is electrically coupled to the liquid electronic device. The liquid electronic device and the liquid electrical circuit output a measurement signal corresponding to the parameter in response to an applied electrical energy. A manufacture method of a measurement system is also provided.
Abstract:
A method of preparing graphene sheets. The method includes: immersing a portion of a first electrode and a portion of a second electrode in a solution containing an acid, an anionic surfactant, a salt, an oxidizing agent, or any combination thereof as an electrolyte, the immersed portion of the first electrode including a first carbon material and the immersed portion of the second electrode including a second carbon material or a metal; causing a potential to exist between the first and second electrodes; and recovering, from the solution, graphene sheets exfoliated from the carbon material(s). Also disclosed is a method of preparing a graphene film electrode. The method includes: dissolving graphene sheets in an organic solvent to form a solution, applying the solution on a substrate, adding deionized water to the solution on the substrate so that a graphene film is formed, and drying the graphene film.
Abstract:
In a general aspect, a method for inferring one or more biomolecule-to-biomolecule interaction sites includes receiving data representative of a plurality of prediction models. Each prediction model is associated with a different atom type of a plurality of atom types and characterizes biomolecule-to-biomolecule interaction site specific patterns common to a plurality of three dimensional probability density maps. Each three dimensional probability density map is associated with a corresponding biomolecule of a plurality of biomolecules included in a training data set and represents a probability of a non-covalent interacting atom on a surface of the corresponding biomolecule interacting with the atom type associated with the prediction model. Data representative of a query biomolecule is received, the data including one or more unknown biomolecule-to-biomolecule interaction sites. The one or more unknown biomolecule-to-biomolecule interaction sites of the query biomolecule are inferred based on the data representative of the plurality of prediction models.
Abstract:
A method for imaging an object using a microscope includes obtaining axial response data, the axial response data representative of a relationship between a separation between a top surface of the object and an objective lens of the microscope and an intensity of light reflected by the top surface of the object; positioning the object at a distance from the objective lens that is within a linear region of the axial response data; sequentially illuminating the object with a plurality of periodic patterns; obtaining a plurality of images of the object, each image resulting from the illumination of the object with a corresponding one of the plurality of periodic patterns; determining a reconstructed image of the object based on the plurality of images of the object; and, based on variations in the intensity of the reconstructed image, determining a topographic profile of the top surface of the object.
Abstract:
The invention pertains to the generation and utility of antibodies that can bind effectively to CεmX domain on membrane-bound IgE (mIgE) expressed on the surface of human B lymphocytes. The CεmX domain of 52 amino acid residues, located between the CH4 domain and the C-terminal membrane-anchor peptide on human membrane-bound epsilon chain, had been suggested as an antigenic site for immunological targeting of B cells expressing mIgE. Previous reported monoclonal antibodies, including a20, which bind to RADWPGPP (SEQ ID NO:1) peptide at the C-terminal of CεmX, have now been found to bind poorly to mIgE on human B cells. We have discovered that only monoclonal antibodies specific for certain segments, such as GLAGGSAQSQRAPDRVL (SEQ ID NO:2) and HSGQQQGLPRAAGGSVPHPR (SEQ ID NO:3), of CεmX can bind effectively to mIgE on human B cells and hence have the utility for targeting those B cells for the treatment of diseases mediated by IgE.
Abstract translation:本发明涉及能够在人B淋巴细胞表面表达的膜结合IgE(mIgE)上有效结合C& mX结构域的抗体的产生和应用。 已经提出位于人膜结合的ε链上的CH4结构域和C末端膜锚定肽之间的52个氨基酸残基的Cys区域作为用于免疫靶向表达mIgE的B细胞的抗原位点。 目前已经发现,以前报道的,在C细胞C末端结合RADWPGPP(SEQ ID NO:1)肽的单克隆抗体,包括a20,现在已被发现与人B细胞上的mIgE结合不良。 我们已经发现,对于某些片段(例如GLAGGSAQSQRAPDRVL(SEQ ID NO:2)和HSGQQQGLPRAAGGSVPHPR(SEQ ID NO:3))特异性的单克隆抗体,C& mX可以有效地结合到人B细胞上的mIgE,因此具有效用 用于靶向这些B细胞用于治疗由IgE介导的疾病。
Abstract:
A method for producing picornaviral capsid protein complexes (e.g., picornavirus like particles) in E. coli using a small-ubiquitin-related fusion protein expression system and an E. coli strain used in practicing this method. Also disclosed is use of the picornaviral capsid protein complexes like thus prepared for eliciting immune responses.
Abstract:
Methods for treating melanoma in a subject in need thereof are disclosed. The method comprises administering to the subject a composition comprising a therapeutically effective amount of deoxyelephantopin or an analogue thereof; and a pharmaceutically acceptable carrier. Methods of inhibiting proliferation, migration and/or metastasis of melanoma cells in a subject in need thereof are also disclosed. Also disclosed are methods for reducing side effects of an anti-cancer agent in a subject in need thereof.
Abstract:
Disclosed herein is a method for treating an androgen-stimulated disease in a subject in need thereof by administering to the subject a composition containing an effective amount of an inhibitor of IκB kinase subunit α activity. The composition can also be administered to a subject at high risk for prostate cancer as a method for reducing the subject's risk thereof. A further method relates to identifying a modulator of transcriptional activity regulated by IκB kinase subunit α. Still another method relates to determining the IκB kinase subunit α-regulated transcriptional activity regulated by in a non-human mammalian test subject.
Abstract:
Methods, structures, devices and systems are disclosed for rapid enrichment and mass transport of biomolecules (e.g., such as proteins) or other small molecules and particles using electrodeless dielectrophoresis (eDEP). In one aspect, a device to aggregate molecules includes a substrate that is electrically insulating, an electrically insulative material formed on the substrate and structured to form a channel to carry an electrically conducting fluid containing particles, a constriction structure formed of the electrically insulative material and located in the channel to narrow a channel dimension and forming an opening with a size in the nanometer range, and a circuit coupled to the substrate to apply an ac electric field and a dc bias electric field along the channel, in which the constriction structure is structured to magnify the applied ac electric field to produce forces that operate collectively to aggregate the particles.