The present invention relates to methods of attaching a coupling molecule (e.g. a peptide, an amino acid, ...) to a substrate comprising a plurality of carboxylic acid groups for linking to a coupling molecule; contacting said substrate with a carboxylic acid activating compound formulation comprising a carbodiimide precursor (i.e. a tetrazole thione), wherein said carbodiimide precursor converts to a carbodiimide upon exposure to electromagnetic radiation at a defined wavelength; selectively exposing said carboxylic acid activating compound formulation to the electromagnetic radiation, thereby generating said carbodiimide and activating the carboxylic acid groups to form carbonyl groups on said substrate at a selectively exposed area; contacting the substrate with a coupling formulation comprising a coupling molecule and a solvent; coupling the coupling molecule to at least one of said plurality of carbonyl groups at said selectively exposed area. The invention also relates to corresponding carboxylic acid activating formulations.
本发明涉及将偶联分子(如肽、
氨基酸......)连接到包含多个
羧酸基团的基底上的方法,所述基底包含用于连接偶联分子的多个
羧酸基团;将所述基底与包含碳二
亚胺前体(即
四唑硫酮)的
羧酸活化化合物制剂接触其中所述碳二
亚胺前体在暴露于规定波长的电磁辐射时转化为碳二
亚胺; 选择性地将所述
羧酸活化化合物制剂暴露于电磁辐射,从而生成所述碳二
亚胺并活化
羧酸基团以在选择性暴露区域的所述基底上形成羰基;将基质与包含偶联分子和溶剂的偶联配方接触;将偶联分子与所述选择性暴露区域的多个羰基中的至少一个偶联。本发明还涉及相应的
羧酸活化制剂。