@article {Wang:2014:1546-198X:1651,title = "Metal Ions Mediated Molecularly Imprinted Polymer for Recognition of Colchicine", journal = "Sensor Letters", parent_itemid = "infobike://asp/senlet", publishercode ="asp", year = "2014", volume = "12", number = "11", publication date ="2014-11-01T00:00:00", pages = "1651-1656", itemtype = "ARTICLE", issn = "1546-198X", eissn = "1546-1971", url = "http://www.ingentaconnect.com/content/asp/senlet/2014/00000012/00000011/art00014", doi = "doi:10.1166/sl.2014.3378", keyword = "MOLECULARLY IMPRINTED POLYMER (MIP), COLCHICINE, METAL COORDINATION INTERACTION, ELECTROPOLYMERIZATION" abstract = "This paper reported a sensitive and selective biosensor modified with a molecularly imprinted metallo-polymer with single-wall carbon nanotubes (PoPD/Al3+/SWNTs/GCE) for the determination of colchicine. The biosensor was fabricated through the electropolymerization of o-phenylenediamine in the present of metal-complexing template prepolymer (the molar ratio of colchicines and Al3+ is 1:1). Differential pulse voltammetry (DPV), cyclic voltammetry (CV), and UV-vis spectrometry were employed to characterize the constructed sensor. Under the optimal experimental condition, the results indicated that the biosensor based on Al3+ mediated molecularly imprinted polymer exhibited significant sensitivity and selectivity for colchicines, compared to the biosensors based on imprinted polymer without Al3+ (PoPD/SWNTs/GCE) and non-imprinted polymer with Al3+ (NIPs/Al3+/SWNTs/GCE). The PoPD/Al3+/SWNTs/GCE biosensor displayed two linear relationships to the colchicine concentration in the range from 2.5 \texttimes 107 to 4.0 \texttimes 106 mol/L and from 5.0 \texttimes 106 to 2.0 \texttimes 105 mol/L respectively. The lower limit of detection was confirmed to 9.1 \texttimes 108 mol/L (S/N = 3). The biosensor demonstrated a promising feature for applying metal ion mediated MIP sensor to the measurement of colchicine in real samples.", author = "Wang, Qian and He, Hanping and Dong, Chao and Zhang, Xiuhua and Wang, Shengfu", }