The coordination of pyridyl-N to pentacyanoferrate for the detection of small organic antigens in solution is presented. The unique contribution of this paper is the direct conjugation of pyridyl-N in small organic antigens to pentacyanoferrate. Pentacyanoferrate is promising as an electrochemical label owing to its good electro-chemical properties, which can be utilized to generate an electrical signal in homogeneous electrochemical immunoassays. The facilely synthesized pyridyl-N to pentacyanoferrate was characterized by the electrochemical and spectroscopic methods. Hippuric acid (HA) has been detected competitively on the interaction of free HA and pentacyanoferrate-(4-aminomethylpyridine-hippuric acid) (Fe-HA) to its antibody, with the detection limit of 0.50 $\mu}g\;mL^-1}$. While pentacyanoferrate-based immunoassay is in its simplicity and infancy, the proposed immunoassay offers attractive opportunities for developing pyridyl-N-based the electrochemical detection of small organic antigens in the health care area.
本文介绍了
吡啶基-N 与五
氰基
铁酸酯的配位,用于检测溶液中的小型有机抗原。本文的独特贡献在于将小分子有机抗原中的
吡啶基-N直接与五
氰基
铁酸酯共轭。五
氰基
铁酸酯具有良好的电
化学特性,可在均相电
化学免疫分析中产生电信号,因此有望用作电
化学标签。我们采用电
化学和光谱学方法对容易合成的
吡啶-N 对五
氰基
铁酸酯进行了表征。在游离 HA 和五
氰基
铁酸(4-
氨基
甲基吡啶-嬉
皮酸)(Fe-HA)与其
抗体的相互作用下,可竞争性地检测到嬉
皮酸(HA),检测限为 0.50
$\mu}g\;mL^-1}$。虽然基于五
氰基
铁酸酯的免疫测定方法还处于简单和初级阶段,但所提出的免疫测定方法为在医疗保健领域开发基于
吡啶-N的小型有机抗原电
化学检测方法提供了极具吸引力的机会。