Spectral-luminescent study of coumarin 35 as fluorescent 'light-up' probe for BSA and DNA monitoring

Autor: Yavuz Onganer, Tuğba Bayraktutan
Rok vydání: 2017
Předmět:
Zdroj: Dyes and Pigments. 142:62-68
ISSN: 0143-7208
DOI: 10.1016/j.dyepig.2017.03.019
Popis: The monitoring of bovine serum albumin (BSA) and deoxyribonucleic acid (DNA) in physiological pH were studied comparatively by using coumarin 35 dye (C35). For this aim, the binding constant and binding number sites for the interactions of the dye with BSA and DNA were determined by Scatchard method. According to the spectroscopic data, fluorescence intensity of C35 was 30-fold and 8.5-fold increased with the presence of BSA and DNA, respectively. Effects of metal ions on the interactions between BSA-C35 and DNA-C35 systems were also studied in terms of metal ion sensor properties. Therefore, the effect of thirteen cations (K+, Li+, NH4+,Ca2+, Ba2+, Mg2+, Sr2+, Mn2+, Fe2+, Ni2+, Al3+, Fe3+, Sn4+) on the BSA-C35 and DNA-C35 systems were investigated, the variations of binding constants were determined and comparisons were made. With this respect, this study is important in terms of gaining a new light-up probe to the literature.
Databáze: OpenAIRE