《Femtomolar detection of Cu2+ ions in solution using super-Nernstian FET-sensor with a lipid monolayer as top-gate dielectric》 was published in Sensors and Actuators, B: Chemical in 2020. These research results belong to Kenaan, A.; Brunel, F.; Raimundo, J.-M.; Charrier, A. M.. Product Details of 1539-42-0 The article mentions the following:
The development of ions sensors with low limit of detection and high sensitivity and selectivity is required in many fields of application and still remains a challenge. We report on the first dual-gated field effect transistor sensor with an engineered lipid monolayer as top gate dielec. The sensor was designed and fabricated for the specific detection of Cu2+ using the Di-2-picolylamine as recognition unit. The lipid monolayer was reticulated to achieve high mech. and dielec. stability over device operation. The resulting sensor exhibits exceptional performances with a limit of detection at 10 femtomolar, with a linear dependency over 10 decades and a super-Nernstian sensitivity of ∼100 mV/decade. We also show that the lipid layer forms a good barrier to ions trapping, hence providing a high stability of the sensor over measurements. In the experiment, the researchers used Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Product Details of 1539-42-0)
Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. As a tridentate ligand this compound provides three nitrogen donors that affords good selectivity for Zn2+ over biologically relevant metals such as Na+, K+, Mg2+ and Ca2+, and leaves coordination sites free for anion binding. Product Details of 1539-42-0