Quantitative galactose colorimetric competitive assay based on galactose dehydrogenase and plasmonic gold nanostars.

The goal of this research was to develop a quantitative galactose colorimetric detection platform that uses plasmonic gold nanostars and co-immobilized galactose dehydrogenase and NAD+. In the presence of 0.05 mM H2O2, the biosensor provided quantified colorimetric signals that were dependent on the analyte concentration.本研究旨在开发一种采用等离子体金纳米星（plasmonic gold nanostars），并共固定化半乳糖脱氢酶与烟酰胺腺嘌呤二核苷酸（NAD+）的定量半乳糖比色检测平台。在0.05 mM H2O2存在的条件下，该生物传感器可产生与分析物浓度相关的定量比色信号。