The authors present the synthesis of novel MUC1-glycopeptide antigens and their multivalent presentation by gold colloids. Their biological activity was tested in a dot-blot immunoassay experiment.
Rapid-Throughput Competitive Colorimetric Assay Based on Monosaccharide-Capped Gold Nanoparticles for Detecting Lectin-Protein Interactions
作者:Charng-Sheng Tsai、Chao-Tsen Chen
DOI:10.1002/cplu.201200014
日期:2012.4
proteomics. A rapid‐throughput competitivecolorimetricassay is presented that uses goldnanoparticles capped by sugars such as mannopyranoside (Man–GNPs), N‐acetylglucosamine (GlcNAc–GNPs), glucose (Glc–GNPs), or N‐acetylgalactosamine (GalNAc–GNPs). The assay expediently detects protein–protein interactions in solution, particularly protein–lectin interactions. The competitiveassays were conducted in microtiter
the synthesis of L-cysteine unsymmetricaldisulfides under mild conditions with good to excellent yields. Described method is based on the straightforward preparation of the organophosphorus sulfenyl bromide readily available from bis-(5,5-dimethyl-2-thiono-1,3,2-dioxaphosphorinanyl) disulfide. The unsymmetricaldisulfides can be obtained for L-cysteine derivatives and thiols bearing neutral or acidic
A Novel and Efficient Synthesis of Unsymmetrical Disulfides
作者:Dariusz Witt、Sylwia Antoniow
DOI:10.1055/s-2007-965873
日期:2007.2
method for the synthesis of unsymmetrical trisulfides under mild conditions in very good yields. The designed method is based on the straightforward preparation of 1-[(5,5-dimethyl-2-thioxo-1,3,2-dioxaphosphorinan-2-yl)trisulfanyl]dodecane from readily available 5,5-dimethyl-2-sulfanyl-2-thioxo-1,3,2-dioxaphosphorinane, sulfur dichloride (SCl 2 ) and dodecane-1-thiol. The unsymmetrical trisulfides can
developed a convenient method for the synthesis of unsymmetricaldisulfides of L-cysteine under mild conditions in good to excellent yields. The described method is based on the straightforward preparation of 5,5-dimethyl-2-thioxo-1,3,2-dioxaphosphorinane-2-sulfenyl bromide from readily available bis(5,5-dimethyl-2-thioxo-1,3,2-dioxaphosphorinan-2-yl) disulfide. The unsymmetricaldisulfides can be obtained