Stilbazolium salts as fluorescence probes f or monitoring local viscosity and pH of solutions
Journal Title: CHEMIK nauka-technika-rynek - Year 2011, Vol 65, Issue 4
Abstract
A series of p-substituted 2- or 4-styrylquinolinium iodides and 2- or 4- styrylpyridinium iodides were prepared by the condensation of 4-(N,N-dimethylamino)benzaldehyde and 4-(N,N-dimethylamino)- 1-naphthaldehyde with N-substituted picolines and methylquinolinium iodides. Spectroscopic properties of the dyes are characterized in organic solvents. These dyes were then tested as fluorescence probes to study the local viscosity and pH of the solutions.
Authors and Affiliations
Agnieszka Bajorek, Ilona Wrześniewska, Marek Pietrzak
Keywords
Related Articles
- EP ID EP124233
- DOI -
- Views 76
- Downloads 0
Application of sludge and environmental safety
In view of the upcoming ban on sending sludge to landfills, the question of its environmentally safe application become more im- portnant. Until recently, it was believed that the biggest problem of chemical contamina...
Spent electrolyte from lead-acid battery utilization
The present paper describes the results of laboratory scale study on heavy metal removal from lead-acid battery waste. The obtained level of purification allowed obtaining magnesium sulphate MgSO4•7H2O for fertilizers.
Nanocarriers as modern transport media in drug delivery systems
In drug delivery systems there are many different groups used at the level of nanoparticles (NP), including polymers, carbon materials and magnetic nanoparticles. The above-mentioned compounds occur in the form of a simp...
Nature inspired dyes for the sensitization of titanium dioxide photocatalyst
Three polymethine dyes with indoline end groups were studied. Based on electrochemical and spectroscopic data it was shown that their LUMO energy is higher in energy than the conductance band edge of anatase TiO2 and hen...
Chemia i farmacja bliżej natury, czyli jak przedłużyć życie w zdrowiu
Nowoczesna medycyna (personalna, żywieniowa) coraz bardziej zwraca uwagę na profilaktykę, na człowieka w środowisku, jego sposób życia i dietę. Zadaniem nauki jest troska o racjonalne wykorzystanie naturalnych zasobów. W...