utilize metal hypohalite species to halogenate aliphatic and aromatic C–H bonds to C–X (X = Cl, Br, I) in nature. In this work, we report the synthesis and spectroscopic characterization of a unique RuIII-OCl species as a structural mimic of haloperoxidase enzymes. The reaction of [(BnTPEN)RuII(NCCH3)]2+ (BnTPEN = N1-benzyl-N1,N2,N2-tris(pyridine-2-ylmethyl)ethane-1,2-diamine) with hypochlorite in the
卤过氧化物酶利用金属次卤酸盐物质将脂肪族和芳香族 C-H 键卤化为自然界中的 C-X(X = Cl、Br、I)。在这项工作中,我们报告了一种独特的 Ru III -OCl 物种作为卤过氧化物酶的结构模拟物的合成和光谱表征。[(BnTPEN)Ru II (NCCH 3 )] 2+ (BnTPEN = N 1 -苄基-N 1 , N 2 , N 2 -三(吡啶-2-基甲基)乙烷-1,2-二胺)与次氯酸盐在 CH 3 CN : H 2 O 混合物中的酸存在下产生新的 [(BnTPEN)Ru III -OCl]2+种在室温下持续 4.5 小时。这个新物种的特点是紫外-可见吸收、EPR、共振拉曼光谱技术和 ESI-MS。Ru III -OCl 物质能够对各种有机底物进行氧原子转移和氢原子提取。
Exploitation of Luminescent Lanthanide Nanoparticles for a Sensitivity-Enhanced ELISA Detection Method
作者:Ali A. Kassir、Clémence Cheignon、Loïc J. Charbonnière
DOI:10.1021/acs.analchem.3c04821
日期:2024.2.6
on the photoluminescenceproperties of dye-sensitized lanthanide nanoparticles (Ln NPs) was developed for enzyme-linked immunosorbent assays (ELISAs). In this method, the horseradish peroxidase (HRP) enzyme catalyzes the oxidation of phenol derivatives in the presence of hydrogen peroxide, providing dimers that are able to interact with the Ln NP surface and to efficiently photosensitize the Ln ions