化学
部分
发光
荧光
酰胺
分子
四面体
三苯胺
光化学
纳米技术
结晶学
立体化学
有机化学
物理
量子力学
材料科学
光电子学
作者
Jian Wang,Cheng He,Pengyan Wu,Jing Wang,Chunying Duan
摘要
Metal–organic polyhedra represent a unique class of functional molecular containers that display interesting molecular recognition properties and fascinating reactivity reminiscent of the natural enzymes. By incorporating a triphenylamine moiety as a bright blue emitter, a robust cerium-based tetrahedron was developed as a luminescent detector of nitronyl nitroxide (PTIO), a specific spin-labeling nitric oxide (NO) trapper. The tetrahedron encapsulates molecules of NO and PTIO within the cavity to prompt the spin-trapping reaction and transforms the normal EPR responses into a more sensitively luminescent signaling system with the limit of detection improved to 5 nM. Twelve-fold amide groups are also functionalized within the tetrahedron to modify the hydrophilic/lipophilic environment, ensuring the successful application of biological imaging in living cells.
科研通智能强力驱动
Strongly Powered by AbleSci AI