Abstract
Recently, lanthanide hybrid material has aroused great interest because of its wide range application in lighting material, bio-imaging, chemical/biological sensing and so on. Here, a binary lanthanide terbium/mesoporous silica hybrid material (Tb@MCM-41), and a ternary lanthanide terbium/mesoporous silica/polyurethane hybrid material (Tb@MCM-41@PU) are reported. Typically, the lanthanide Tb3+ ions were connected onto the surface of mesoporous MCM-41 via the molecular bridge built by the synergy of silane coupling agent (APTEOS) and chelating reagent (DTPA), and then the resulted Tb@MCM-41 was encapsulated into a commercial polymer matrix (PU) to form Tb@MCM-41@PU composite film. The sensing experiments conducted in solution had proven that Tb@MCM-41 has good selective sensing ability to the dopamine molecular. And further experiments also indicated the Tb@MCM-41@PU composite film can be used as a very convenient sensor tool towards dopamine.
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