Cation identity dependence of crown ether photonic crystal Pb2+ sensing.

نویسندگان

  • Fangyong Yan
  • Sanford Asher
چکیده

We quantitatively modeled the volume phase transition of a hydrogel containing a crystalline colloidal array with a crown ether ligand which binds Pb2+. The hydrogel volume response and the wavelength diffracted depend on the Pb2+ concentration and on both the ionic strength and the valence of the nonbinding ionic species. We successfully modeled the response of this hydrogel Pb2+ sensor to ionic strength and the cation valence of the added salts.

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عنوان ژورنال:
  • Analytical and bioanalytical chemistry

دوره 387 6  شماره 

صفحات  -

تاریخ انتشار 2007