Molecular Tubes for Lipid Sensing: Tube Conformations Control Analyte Selectivity and Fluorescent Response
作者:Christopher T. Avetta、Berkeley J. Shorthill、Chun Ren、Timothy E. Glass
DOI:10.1021/jo201791a
日期:2012.1.20
Two fluorescent sensors for lipids have been prepared and tested for detection of a number of hydrophobic compounds of varying shape and size. The data suggest that the two sensors have a different mode of fluorescent response. Yet, the two sensors are only different in the bridging group one having a flexible amide and one having a rigid allyl bridge. The fluorescence data are explained based on a difference in conformation of the two sensors in aqueous solution.
Shape-Selective Sensing of Lipids in Aqueous Solution by a Designed Fluorescent Molecular Tube
作者:Berkeley J. Shorthill、Christopher T. Avetta、Timothy E. Glass
DOI:10.1021/ja047639d
日期:2004.10.1
calixnaphthalene-type molecular tubes is described. The anti isomer showed strong fluorescence quenching upon titration with various simple lipid guests in water, in which the more hydrophobic guests associated with higher affinity. The synisomer bound long straight-chain guests tightly with a similar fluorescence-quenching response. However, the synisomer was more selective, giving an increase in fluorescence