Recognition of phospho sugars and nucleotides with an array of boronic acid appended bipyridinium salts

被引:38
作者
Schiller, Alexander [2 ]
Vilozny, Boaz [1 ]
Wessling, Ritchie A. [1 ]
Singaram, Bakthan [1 ]
机构
[1] Univ Calif Santa Cruz, Dept Chem & Biochem, Santa Cruz, CA 95064 USA
[2] Lab Protect & Physiol, Empa Swiss Fed Labs Mat Testing & Res, CH-9014 St Gallen, Switzerland
关键词
Boronic acid; Nucleotide; Phospho sugar; Sensor array; Viologen; Fluorescence;
D O I
10.1016/j.aca.2008.08.011
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The solution-phase sensor array of three cationic bis-boronic acid appended benzyl viologens (BBV) and the anionic fluorescent dye, 8-hydroxypyrene-1,3,6-trisulfonic acid trisodium. salt (HPTS), is able to discriminate among five phospho sugars, four nucleotides and three neutral saccharides in aqueous buffered solution at low mM concentrations. Linear discriminant analysis, principal component analysis, and hierachical cluster analysis studies showed the "discrimination limit" (lowest analyte concentration where the discrimination is still 100%) to be 4 mM. Calculated K-b and F-max/F-0 values from binding curves of the three BBVs with 1-12 were also used to perform multi-variate analyses with very good discrimination results. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:203 / 211
页数:9
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