G01N33/582

Water-soluble M-conjugated fluorescent 1,1-binaphthyl-based tandem polymers

The invention is directed to a conjugate having the general formula (I)

##STR00001## Wherein AR, MU and MU* are repeating units of a polymer and MU and MU* are polymer modifying units or band gap modifying units which are evenly or randomly distributed along the polymer main chain, G1 and G2 stand for hydrogen, halogen or an antigen recognizing moiety, with the provision that at least one of G1 or G2 is an antigen recognizing moiety, a is 10 to 100 mol %, b is 0 to 90 mol % c is 0.1 to 90 mol % d is 1 to 10 000; with the provisio that a+b+c=100 mol % characterized in that AR is connected in the polymer chain via the 2,2′ or 3,3′ or 4,4′ or 5,5′ or 6,6′ or 7,7′ or 8,8′ positions according to general formula (II)

##STR00002## Wherein the remaining positions 2,2′; 3,3′; 4,4′; 5,5′; 6,6′; 7,7′ and 8,8′ are substituted with same or different residues selected from the group consisting of H, SO.sub.2CF.sub.3, SO.sub.2R.sub.a, CF.sub.3, CCl.sub.3, CN, SO.sub.3H, NO.sub.2, NR.sub.aR.sub.bR.sub.c.sup.+, CHO, CORa, CO.sub.2Ra, COCl, CONRaRb, F, Cl, Br, I, R.sub.a, OR.sub.a, SR.sub.a, OCOR.sub.a, NR.sub.aR.sub.b, NHCOR.sub.a, CCR.sub.a, aryl-, heteroaryl-, C.sub.6H.sub.4OR.sub.a or C.sub.6H.sub.4NRaRb, with Ra-c independently hydrogen, alkyl-, alkenyl-, alkinyl-, heteroalkyl-, aryl-, heteroaryl-, cycloalkyl-, alkylcycloalkyl-, heteroalkylcycloalkyl-, heterocycloalkyl-, aralkyl- or a heteroaralkyl residue or (CH.sub.2).sub.x(OCH.sub.2CH.sub.2).sub.yO(CH.sub.2).sub.zCH.sub.3, wherein x is an integer from 0 to 20; y is an integer from 0 to 50 and z is an integer from 0 to 20.

Non-fluorescent rhodamines

A novel non-fluorescent rhodamine dye forms a twisted intramolecular charge transfer state. A substituent that causes steric hindrance is introduced at an ortho position of a dimethylamino group on the xanthene ring of tetramethylrhodamine, which is a general rhodamine that exhibits strong fluorescence, and a certain amount of twist is imparted in a ground state. As a result, the formation of the twisted intramolecular charge transfer state is promoted in the excited state and non-fluorescence is exhibited.

Information processing device, information processing system, and information processing method
11561162 · 2023-01-24 · ·

It is aimed to provide a technology that enables highly accurate device performance evaluation and device adjustment in optical analysis of microparticles, using the same type of beads. The present technology provides an information processing device including an information processing unit that acquires a plurality of fluorescence intensities at a plurality of light irradiation powers for a fluorescence signal from a sample including particles labeled with a fluorescent dye having a single fluorescence intensity, recognizes an intensity range of each of the plurality of fluorescence intensities detected on the basis of a fluorescence intensity balance of the sample, and calculates information relating to sensitivity of a fluorescence detection unit.

ANTI-CANINE CD16 POLYPEPTIDES, ANTI-CANINE CD64 POLYPEPTIDES, COMPOSITIONS INCLUDING SAME, AND METHODS OF USING
20230227561 · 2023-07-20 ·

An anti-canine CD16 polypeptide generally includes a CDR region of SEQ ID NO:5, a CDR region of SEQ ID NO:9, or a functional variant of either CDR region. An anti-canine CD64 polypeptide generally includes a CDR region of SEQ ID NO:13, a CDR region of SEQ ID NO:17, or a functional variant of either CDR region. The anti-canine CD16 polypeptide and anti-canine CD64 polypeptide may be incorporated into a therapeutic compound, a multispecific compound, a targeted imaging compound, or a capture assay device.

SPATIALLY-TAGGED ANALYTE CAPTURE AGENTS FOR ANALYTE MULTIPLEXING

Provided herein are methods for preparing biological samples for spatial proteomic analysis, methods of determining a location of a protein analyte in a biological sample, and methods of determining a location of a protein analyte and a nucleic acid analyte in a biological sample.

Electrochemiluminescence method of detecting an analyte in a liquid sample and analysis system

An electrochemiluminescence method of detecting an analyte in a liquid sample and a corresponding analysis system. An analyte in a liquid sample is detected by first providing a receptacle containing a fluid comprising protein coated magnetic microparticles to a stirring unit. Stirring of the fluid is necessary since the density of the microparticles is usually higher than the density of the buffer fluid. Thus the microparticles tend to deposit on the bottom of the receptacle leading to an aggregation of the microparticles because of weak interactions. To obtain representative measurements a homogeneous distribution of the microparticles in the buffer fluid is necessary to ensure a constant concentration of microparticles for each analysis cycle. It is further necessary to provide disaggregation of the microparticles, which is also realized by stirring the fluid. Stirring is conducted with a rotational frequency that is adapted to the amount of fluid to be stirred.

Systems and methods for determining a chemical state

The present invention provides self-contained systems for performing an assay for determining a chemical state, the system including a stationary cartridge for performing the assay therein, at least one reagent adapted to react with a sample; and at least one reporter functionality adapted to report a reaction of the at least one reagent with said sample to report a result of the assay, wherein the at least one reagent, the sample and the at least one reporter functionality are contained within the cartridge.

Water-soluble polymeric dyes having pendant chromophores

Water soluble light harvesting multichromophores having pendant chromophore groups are provided. The light harvesting multichromophore has a polymeric backbone including non-conjugated repeat units and a plurality of pendant donor chromophore groups linked to a non-conjugated repeat unit of the polymeric backbone. A pendant chromophore group can be a BODIPY group substituted with one or more water soluble groups. Polymeric tandem dyes based on the subject multichromophores are provided that further include an acceptor fluorophore linked to a non-conjugated repeat unit of the polymeric backbone and configured in energy-receiving proximity to a pendant donor chromophore group. Also provided are labelled specific binding members that include the subject polymeric tandem dyes. Methods of evaluating a sample for a target analyte and methods of labelling a target molecule in which the subject polymeric tandem dyes find use are provided. Systems and kits for practicing the subject methods are also provided.

Fluorescent acridinium salts, synthesis thereof and use for detection of cardiolipin
20230013542 · 2023-01-19 ·

The present invention relates to a novel substituted acridinium salts as fluorescent dyes, as well as methods of their manufacturing and use of the disclosed compounds for the detection of cardiolipin.

CHARACTERIZATION OF S-ADENOSYL-L-METHIONINE-CONSUMING ENZYMES WITH 1-STEP EZ-MTASE: A UNIVERSAL COUPLED-ASSAY
20230220443 · 2023-07-13 ·

Methods and kits are disclosed for measuring activity of a methyltransferase or a radical SAM enzyme or for screening for an inhibitor of a methyltransferase or a radical SAM enzyme, where the methods and kits comprise, respectively, deaminase TM0936 for a MTase coupled assay and deaminase PA3170 for a radical SAM coupled assay.