摘要:
Embodiments of the invention provide methods of preparing an activated acridinium microparticle. Generally, the methods involve direct covalent coupling or an affinity format. The direct covalent coupling method involves coating a microparticle with a proteinaceous compound. Then, a 10-methyl-N-tosyl-N-(2-carboxyethyl)-9-acridinium carboximide trifluoromethane sulfonate is coupled to the proteinaceous compound. In the affinity format, a microparticle is coated with a biotinylated proteinaceous compound. The microparticle is reacted with an anti-biotin labelled 10-methyl-N-tosyl-N-(2-carboxyethyl)-9-acridinium carboximide trifluoromethane sulfonate. Methods are also provided for using such a microparticle. Those methods of use can estimate transfer efficiency, calibrate optics, and measure membrane pore size of a chemiluminescence based instrument. Test elements for analytical instruments are also provided.
摘要:
The present invention relates to one or more peptides which may be used to test for the presence of antibodies to B. microti. These peptide are selected based on the strength and specificity of the human antibody response to B. microti. These peptides alone or in combination have a variety of uses, for example, as a component of a diagnostic assay or kit.
摘要:
The subject invention relates generally to immunoassays for detection of antibodies by use chemiluminescent compounds. More particularly, the subject invention relates to chemiluminescent immunoassays to detect antibodies wherein a precomplex mixture is created and a two-step assay is performed resulting in a greater signal.
摘要:
This invention provides a novel process of producing magnetically responsive fluorescent polymer particles comprising polymeric core particles coated evenly with a layer of polymer containing magnetically responsive metal oxide. A wide variety of polymeric particles with sizes ranging from 1 to 100 microns can be used a core particles and transformed into magnetically responsive polymer particles. The surface of these magnetically responsive polymer particles can be coated further with another layer of functionalized polymer. These magnetically responsive fluorescent polymer particles can be used for passive or covalent coupling of biological material such as antigens, antibodies, enzymes or DNA/RNA hybridization and used as solid phase for various types of immunoassays, DNA/RNA hybridization probes assays, affinity purification, cell separation and other medical, diagnostic, and industrial applications.
摘要:
A stable dispersion of powdered coal in petroleum oil comprising:5-50% by weight of pulverized coal;45-90% by weight of diesel oil or Fuel Oil No. 2; and5-20% by weight of ethanol.This dispersion is particularly useful as a liquid fuel.
摘要:
The subject invention is directed to microemulsion-based (ME) nanoparticles and methods of using same. The ME nanoparticles of the subject invention encompass self-assemblies of oil in water emulsions in the presence of at least two emulsifiers. One of the emulsifiers is a salt of a fatty acid, and the combined concentration of the at least two emulsifiers is sufficiently large to produce micelles, wherein the oil droplets are the hydrophobic core of the micelles. The subject invention also contemplates methods of modifying lipids, high density lipoprotein (HDL), and low density lipoprotein (LDL) in blood by contacting the blood with the ME nanoparticles of the subject invention. Another aspect concerns methods for treating atherosclerosis by administering the ME nanoparticles of the subject invention to a patient in need thereof.
摘要:
The subject invention relates to methods for the simultaneous detection of Hepatitis C Virus (HCV) antigens as well as antibodies produced in response to HCV antigens. Furthermore, the subject invention allows one to detect antigens in the early, acute stage of infection, even prior to the development of antibodies, thereby allowing for early detection of infected blood and blood products, thus improving the safety of the blood supply.
摘要:
New assays for diagnosing NANBH utilizing novel peptide fragments derived from polypeptide antigens reactive to antibodies present in the sera of infected patients are disclosed. In producing these peptides, the portion of the polypeptide contributing to high backgrounds is deleted thereby resulting in assays with an exceptionally high signal to background ratio.
摘要:
A stable homogeneous liquid fuel composition comprising a petroleum residual oil having a viscosity at room temperature of 1-2.5 poises, an alcohol of 1-2 carbon atoms, and a hydrocarbon coupling agent. This composition has utility as a fuel per se and as a liquid carrier in which powdered coal can be dispered to produce another liquid fuel.