Method for the immunoassay of dioxins and dibenzofurans
申请人:THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
公开号:EP0332819A1
公开(公告)日:1989-09-20
A method is described for the use of monoclonal antibodies in a sensitive immunoassay for polyhalogenated polycyclic planar aromatic hydrocarbons such as dioxins and dibenzofurans in industrial samples which contain impurities. Appropriate sample preparation and selective enzyme amplification of the immunoassay sensititvity permits detection of dioxin contaminants in industrial or environmental samples at concentrations in the range of a few parts per trillion.
DIOXIN DERIVATIVES AND METHOD OF MEASUREMENT THEREWITH
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:EP1256579A1
公开(公告)日:2002-11-13
The invention provides a highly sensitive measurement and detection technique for dioxins, which has advantages inherent to immunoassay; and markers to be used in the technique.
Disclosed are a biotinylated dioxin derivative of formula (1):
(wherein X represents a hydrogen atom or a chlorine atom; R1 represents a biotin residue; R2's, which may be identical to or different from one another, independently and individually represent an arginine residue or a lysine residue; n is an integer from 1 to 5 inclusive; and m is an integer from 1 to 3 inclusive), and an immunoassay method for dioxins characterized by using the derivatives as a marker.
Optimized CRISPR/cas9 systems and methods for gene editing in stem cells
申请人:Editas Medicine, Inc.
公开号:US11390884B2
公开(公告)日:2022-07-19
The methods and compositions described herein surprisingly increase CRISPR/Cas-mediated gene editing in stem cells by transiently treating the cells with a stem cell viability enhancer prior to and/or after contacting the cells with one or more CRISPR/Cas9 components. Further, this treatment also surprisingly results in increased engraftment of the stem cells into the target tissue of a subject. The present disclosure also provides one or more modified CRISPR/Cas9 components which, when used in combination with the stem cell viability enhancer, further increases the frequency of gene editing in stem cells, increases stem cell viability, and increases stem cell engraftment.
Dioxin derivatives and method of measurement therewith
申请人:——
公开号:US20030108955A1
公开(公告)日:2003-06-12
The invention provides a highly sensitive measurement and detection technique for dioxins, which has advantages inherent to immunoassay; and markers to be used in the technique.
Disclosed are a biotinylated dioxin derivative of formula (1):
1
(wherein X represents a hydrogen atom or a chlorine atom; R
1
represents a biotin residue; R
2
's, which may be identical to or different from one another, independently and individually represent an arginine residue or a lysine residue; n is an integer from 1 to 5 inclusive; and m is an integer from 1 to 3 inclusive), and an immunoassay method for dioxins characterized by using the derivatives as a marker.