Patent application number | Description | Published |
20100022024 | Method for testing performance of reagents containing microparticles - The present invention provides: a method of testing the performance of reagents containing microparticles by mixing a standard specimen containing two or more kinds of ligands with two or more kinds of microparticles containing receptors capable of specifically binding to the respective ligands and being optically distinguishable, and detecting the optical characteristics of the aggregates thus formed; a kit for detecting a specimen provided with the standard specimen and the microparticles as described above; a method of quantifying a specimen after testing the performance of reagents containing microparticles as described above, mixing a specimen containing two or more kinds of ligands capable of specifically binding to the respective receptors in the microparticles with the microparticles, detecting the optical characteristics of the aggregates thus formed, and then repeating the testing performance of reagents containing microparticles. Thus the present invention provides a performance test of reagents containing microparticles which is suitable for detecting a biological specimen such as a nucleic acid, a quantification method of a specimen which uses the performance testing method thereof and a specimen detection kit including the reagent. | 01-28-2010 |
20130228705 | OPTICAL ANALYSIS METHOD USING THE LIGHT INTENSITY OF A SINGLE LIGHT-EMITTING PARTICLE - There is provided a scanning molecule counting method using an optical measurement with a confocal microscope or a multiphoton microscope, enabling characterization of a light-emitting particle or identification of a light-emitting particle with emitted light intensity of a single light-emitting particle measured individually. In the inventive optical analysis technique, with reference to the ratio of the intensities of simultaneously generated signals of the lights of at least two light-emitting sites having mutually different emission wavelengths, possessed by a light-emitting particle contained in a sample solution, the intensities being measured with moving the position of the light detection region of an optical system by changing the optical path of the optical system, a single light-emitting particle corresponding to the signals is identified, and the kind, the size, etc. of the light-emitting particle is identified. | 09-05-2013 |
20140004518 | METHOD FOR IDENTIFYING POLYMORPHISM OF NUCLEIC ACID MOLECULES | 01-02-2014 |
20140004519 | METHOD FOR IDENTIFYING POLYMORPHISM OF NUCLEIC ACID MOLECULES | 01-02-2014 |
20140093874 | METHOD FOR DETECTING NUCLEIC ACID MOLECULE IN BIOSAMPLE - A method for detecting a nucleic acid molecule comprises: preparing a sample solution which contains a nucleic acid probe which is specifically hybridizable with the nucleic acid molecule to be analyzed, and a biosample; associating the nucleic acid molecule with the nucleic acid probe in the sample solution that has been prepared in the preparing; and after the associating, calculating, by the scanning molecule counting method, the number of molecules of the associated bodies including the nucleic acid probe in the sample solution that has been prepared in the preparing. This method for detecting a nucleic acid molecule further comprises: removing proteins from the sample solution before the calculating, or removing proteins from the biosample before the preparing. | 04-03-2014 |
20140147854 | METHOD FOR DETECTING A TARGET PARTICLE - This method for detecting a target particle has: (a) a step for preparing a sample solution containing target particles and one type or two or more types of a luminescent probe that binds to the target particles, and allowing two or more molecules of the luminescent probe to bind per one molecule of the target particles in the sample solution, and (b) a step for calculating the number of molecules of target particles bound to the luminescent probe present in the sample solution prepared in step (a) by a scanning molecule counting method by using as an indicator thereof the strength of light signals of the individually detected particles, and the luminescent probe is one type or two or more types of a luminescent probe to which the same type of luminescent substance is bound. | 05-29-2014 |
20140179023 | METHOD FOR DETECTING A TARGET PARTICLE IN BIOSAMPLE CONTAINING PANCREATIC JUICE - Provided is a method for detecting a target particle in a biosample containing pancreatic juice, the method enabling the detection in a solution that has a lower concentration or number density of the target particles than the level possible for conventional photoanalysis techniques. This method comprises: a probe-binding step for preparing a sample solution, which contains a biosample containing pancreatic juice and a fluorescent probe capable of binding to a target particle, and binding the fluorescent probe to the target particle in the biosample; and a calculation step for calculating the number of molecules of the target particles bound to the fluorescent probes by the scanning molecule counting method. A light emission property of emitted light is different between a state where the fluorescent probe is bound to the target particle and a state where the fluorescent probe is present alone. In a state where the fluorescent probe is bound to the target particle, the fluorescent probe emits fluorescence having a wavelength of 600 nm or longer. | 06-26-2014 |
20140356969 | METHOD FOR DETECTING A TARGET PARTICLE - Provided is a method for detecting a target particle that is a method for detecting a non-luminescent target particle dispersed and randomly moving in a sample solution using an optical system of a confocal microscope or multi-photon microscope, having: (a) preparing a sample solution containing target particles, and labeling particles of which the average outer diameter is less than 15% of the diameter of a photodetection region of the optical system, binding two or more molecules of the labeling particles per molecule of the target particles in the sample solution, and forming a non-luminescent complex of which the outer diameter is 15% or more of the diameter of the photodetection region; and, (b) calculating the number of molecules of the complex in the sample solution prepared in the (a) using an inverse scanning molecule counting method. | 12-04-2014 |