期刊
DYES AND PIGMENTS
卷 134, 期 -, 页码 212-218出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2016.07.002
关键词
Troger's base; Cyanine dyes; Glycosaminoglycans; Specific ligands; Recognition
资金
- Ministry of Education, Youth and Sports of the Czech Republic within the National Sustainability Program II (Project BIOCEV-FAR) [LQ1604]
- projects BIOCEV [CZ.1.05/1.1.00/02.0109, LH 14008]
- Charles University in Prague [UNCE 204011/2012, PRVOUK P24/LF1/3]
- Grant Agency of Czech Republic [GACR 14-36804G]
Symmetric Trager's base derivatives with quinolinium substitution, 7 and 8, were prepared, and their structures were confirmed by H-1 and C-13 NMR, 2D NMR and NOE NMR techniques and elemental analysis. These compounds were studied as specific ligands for the recognition of glycosaminoglycans (heparin, heparan sulphate, chondroitin sulphate and hyaluronic acid). They exhibited high affinity and selectivity towards glycosaminoglycans, especially heparin. The conditional binding constants, linear ranges and detection limits were determined by UV-Vis spectroscopy. These values, especially at extremely low limits of detection, showed the high potential of the prepared ligands for the recognition and determination of glycosaminoglycans, especially heparin. For example, the minimum detectable heparin concentrations for 7 and 8 were 0.1 and 0.17 ng/mL (R-2 = 0.988 and 0.9938) in media (1 mM NaCl (H2O:MeOH; 7:3, v/v), pH = 7.34), respectively. (C) 2016 Elsevier Ltd. All rights reserved.
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