自然界中的肽,蛋白质,磷酸酯或羧酸酯的催化水解是由酶催化的,该酶是高效,快速和选择性的。迄今为止出版的大多数水解化学催化剂都模仿酶的活性位点,并含有金属络合物和氨基酸残基。它们的合成可能很费力,而与酶相比,水解活性仍然有限。我们提出了一种利用囊泡和胶束的流体膜作为两亲性添加剂的载体的方法,该两性添加剂可协同裂解芳基酯键。膜锚定的双-Zn (II)复合物1具有水解活性,并以0.9 M -1 s的二级速率常数(k 2)水解荧光素二乙酸酯(FDA)。-1。水解活性由带有共同氨基酸侧链官能团的共包埋膜添加剂调节。通过这种方法,与循环1( k 2 = 14.7 M -1 s -1)相比,系统的水解活性提高了16倍。DOPC和DSPC脂质分别在室温下形成流体或凝胶相膜。省略脂质,获得胶束溶液,其水解活性达到k 2 = 13.4 M -1 s -1。结果表明,在流体膜和胶束中有利于协同水解,使活性部分可
The invention relates to a specific substrate on an ALDH isoenzyme, to a composition comprising at least one such substrate, to a diagnostic marker comprising such a substrate, and to the uses thereof and associated methods.
Method for detecting and counting micro-organisms in a sample
申请人:Vedrine Bruno
公开号:US20050202518A1
公开(公告)日:2005-09-15
The invention concerns a method for detecting and counting micro-organisms in a sample comprising the following steps: (a) selectively enriching the micro-organism sought in the sample, (b) conditioning said micro-organism, (c) immunomagnetic concentration of the conditioned microorganism, (d) fluorescent marking of the concentrated micro-organism, and (e) detecting and analyzing the fluorescence.
PROCEDE DE DETECTION ET DE COMPTAGE DE MICROORGANISMES DANS UN ECHANTILLON
申请人:Metis Biotechnologies
公开号:EP1546366B9
公开(公告)日:2011-01-19
SUBSTRAT SPÉCIFIQUE D'UNE ISOENZYME DE L'ALDH
申请人:Advanced Biodesign
公开号:EP3491143A1
公开(公告)日:2019-06-05
DETECTION OF URINARY TRACT INFECTIONS
申请人:ISI Life Sciences, Inc.
公开号:US20180113128A1
公开(公告)日:2018-04-26
Disclosed are compositions, methods, and kits that are directed to detection of urease expressing bacterial urinary tract infections and, in particular, those associated with the use of urinary catheters.