The author of 《Fluorescent enhancement sensing of cadmium (II) ion based on a perylene bisimide derivative》 were Xiong, Jiu-Kai; Wang, Ke-Rang; Wang, Kai-Xin; Han, Tian-Lei; Zhu, Hong-Yu; Rong, Rui-Xue; Cao, Zhi-Ran; Li, Xiao-Liu. And the article was published in Sensors and Actuators, B: Chemical in 2019. Category: pyridine-derivatives The author mentioned the following in the article:
A perylene bisimide derivative (PBI-Lac-DPA) with lactose and DPA moiety conjugates was synthesized, and this compound exhibited fluorescence turn-on sensing for Cd2+ ions in an aqueous solution with a binding constant of (6.0 ± 0.3) × 104 M-1, and detection limit of 5.2 ± 10-7 M. PBI-Lac-DPA exhibited high selectivity for the Cd2+ ion with a 2:1 binding stoichiometry between PBI-Lac-DPA and Cd2+ ions due to the addnl. coordinating sites in the self-assembly process of PBI-Lac-DPA itself. Furthermore, PBI-Lac-DPA exhibited fluorescence enhancement upon complexation with the Cd2+ ion in living cells. This work explored a new method for increasing the selectivity for Cd2+ ions via the enhanced addnl. complex sites of the DPA moiety from self-assembly process. In addition to this study using Bis(pyridin-2-ylmethyl)amine, there are many other studies that have used Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Category: pyridine-derivatives) was used in this study.
Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. The compound is a tridentate ligand in coordination chemistry and commonly used to produce Zn-based chemosensors/probes, such as Zinpry.Category: pyridine-derivatives