Efficient dispersion of multi-walled carbon nanotubes in aqueous solution by non-covalent interaction with perylene bisimides
作者:Rui Filipe Araújo、Carlos Jorge R. Silva、Maria Conceição Paiva、Manuel Melle Franco、Maria Fernanda Proença
DOI:10.1039/c3ra42422g
日期:——
molecules were obtained in good yield using a simple synthetic protocol and avoiding the need for complex purification methods, a major advantage for future applications. Carbonnanotubes (CNT) were dispersed in an aqueoussolution of the PBI, buffered at pH 7, and the suspension was studied by absorption and emission spectroscopy. PBI functionalized with Boc-lysine and phenylalanine led to an excellent
The study of perylene diimide–amino acid derivatives for the fluorescence detection of anions
作者:Chao-yuan Chen、Ke Wang、Lei-lei Gu、Hui Li
DOI:10.1039/c7ra08005k
日期:——
perylene diimide–amino acid derivatives (H2PDIAla, H2PDIGlu, H2PDIPhe, H2PDITyr) were chosen to interact with anions. The UV-vis, fluorescence (in DMF solution) and NMRspectra in DMSO-d6 solution were studied. The results indicated that the four types of derivatives exhibit specific selectivity and high sensitivity for F− and OH− ions. The NMR titrations of the derivatives with F− and OH− ions confirmed