Magnesium-selective ion-channel mimetic sensor with a traditional calcium ionophore.
A novel magnesium-selective ion-channel mimetic sensor based on a well-known calcium ionophore, ETH 5234, was demonstrated. Due to different stoichiometry of the ionophore with Mg(2+) and Ca(2+), the sensor exhibits high selectivity to Mg(2+) by controlling ionophore concentration on the electrode surface, which allows the measurement of Mg(2+) in a 1 mM Ca(2+) background solution.
Zhu
Jingwei
J
Institute for Chemical Physics, Beijing Institute of Technology, Beijing, China, 100081.
Qin
Yu
Y
Zhang
Yunhong
Y
D015374:Biosensing Techniques / Q000295:instrumentation* / Q000379:methods*; D002118:Calcium / Q000737:chemistry*; D003510:Cyclohexanes / Q000737:chemistry*; D004566:Electrodes; D007476:Ionophores / Q000737:chemistry*; D008274:Magnesium / Q000737:chemistry*; D015394:Molecular Structure
D003510:Cyclohexanes; C547634:ETH 5234; D007476:Ionophores; D008274:Magnesium; D002118:Calcium