Enantioselective recognition of tryptophan isomers with molecularly imprinted overoxidized polypyrrole/poly(p-aminobenzene sulfonic acid) modified electrode.

作者: Kelin Li , Zhengzhi Yin , Yong Kong , Shan Li , Datong Wu

DOI: 10.1002/CHIR.23299

关键词: TryptophanSulfonic acidPolypyrroleMolecular imprintingChemistryCyclic voltammetryElectrochemistryEnantioselective synthesisNuclear chemistryElectrode

摘要: Poly(p-aminobenzene sulfonic acid) (pABSA) was electrodeposited onto the surface of a glassy carbon electrode (GCE), which then used for preconcentration l-tryptophan (l-Trp) due to electrostatic and π-π interactions between pABSA l-Trp. Polypyrrole (PPy) l-Trp enriched pABSA, templates were removed, resulting in molecularly imprinted PPy/pABSA. To avoid interference from oxidation peak PPy on following electrochemical chiral recognition Trp isomers, overoxidized by cyclic voltammetry (CV). The resultant (OPPy)/pABSA modified GCE exhibits higher affinity toward than d-tryptophan (d-Trp); that is, current is greatly d-Trp at OPPy/pABSA GCE.

参考文章(24)
B. Pluhar, U. Ziener, B. Mizaikoff, Binding performance of pepsin surface-imprinted polymer particles in protein mixtures Journal of Materials Chemistry B. ,vol. 3, pp. 6248- 6254 ,(2015) , 10.1039/C5TB00657K
Maria Kempe, Klaus Mosbach, Separation of amino acids, peptides and proteins on molecularly imprinted stationary phases Journal of Chromatography A. ,vol. 691, pp. 317- 323 ,(1995) , 10.1016/0021-9673(94)00820-Y
Hongxing Dong, Meixia Zheng, Yiling Ou, Chunhong Zhang, Lijia Liu, Junqing Li, Xiaoguang Yang, A chiral stationary phase coated by surface molecularly imprinted polymer for separating 1,1′-binaphthalene-2,2′-diamine enantiomer by high performance liquid chromatography Journal of Chromatography A. ,vol. 1376, pp. 172- 176 ,(2015) , 10.1016/J.CHROMA.2014.12.009
Marek Trojanowicz, Enantioselective electrochemical sensors and biosensors: A mini-review Electrochemistry Communications. ,vol. 38, pp. 47- 52 ,(2014) , 10.1016/J.ELECOM.2013.10.034
Guiying Jin, Yuzhong Zhang, Wangxing Cheng, Poly(p-aminobenzene sulfonic acid)-modified glassy carbon electrode for simultaneous detection of dopamine and ascorbic acid Sensors and Actuators B: Chemical. ,vol. 107, pp. 528- 534 ,(2005) , 10.1016/J.SNB.2004.11.018
Piyush Sindhu Sharma, Marcin Dabrowski, Francis D’Souza, Wlodzimierz Kutner, Surface development of molecularly imprinted polymer films to enhance sensing signals Trends in Analytical Chemistry. ,vol. 51, pp. 146- 157 ,(2013) , 10.1016/J.TRAC.2013.07.006
Sonia Nieto, Carlos Cativiela, Esteban P. Urriolabeitia, 31P NMR spectroscopy and pattern-recognition techniques as tools for the identification and enantiodiscrimination of α-amino acids New Journal of Chemistry. ,vol. 36, pp. 566- 569 ,(2012) , 10.1039/C2NJ20909H
Sabriye Perçin Ozkorucuklu, Yücel Sahin, Güleren Alsancak, Voltammetric Behaviour of Sulfamethoxazole on Electropolymerized-Molecularly Imprinted Overoxidized Polypyrrole Sensors. ,vol. 8, pp. 8463- 8478 ,(2008) , 10.3390/S8128463
Jiawei Gu, Hongxia Dai, Yong Kong, Yongxin Tao, Haixia Chu, Zhifang Tong, Chiral electrochemical recognition of cysteine enantiomers with molecularly imprinted overoxidized polypyrrole-Au nanoparticles Synthetic Metals. ,vol. 222, pp. 137- 143 ,(2016) , 10.1016/J.SYNTHMET.2016.05.007