(EN) Fluorescent oligonucleotide probe having a general formula (I), wherein Onu represents an oligonucleotide residue, Thion represents a fluorescent oligothiophene containing n thiophenic rings, n being an integer lower than 8, L representing a binder conceived to maintain Thion mobile in relation to Onu in a manner so that Thion can perform its fluorescent action correctly, and Onu can perform its hybridization action. (I) = Onu-L-Thion.(FR) La présente invention concerne une sonde oligonucléotidique fluorescente ayant la formule générale (I) dans laquelle Onu représente un radical oligonucléotide, ThiOn représente un oligothiophène fluorescent contenant n noyaux thiophène, n étant un entier inférieur à 8, et L représente un liant conçu pour assurer la mobilité de ThiOn par rapport à Onu de sorte que ThiOn peut mettre en oeuvre correctement son activité de fluorescence, et Onu peut mettre en oeuvre son activité d'hybridation.
Dendritic oligothiophene-perylene bisimide hybrids: synthesis, optical and electrochemical properties
作者:Markus K. R. Fischer、Theo E. Kaiser、Frank Würthner、Peter Bäuerle
DOI:10.1039/b817158k
日期:——
Novel dendritic oligothiophene-perylene bisimide hybrid (DOTPBI) systems were investigated. Perylene bisimide (PBI) derivatives with phenoxy spacers bearing dendritic oligothiophenes (DOT) up to the third generation (G3) in the bay position, with an increasing number of conjugated thiophene units have been synthesized and characterized as novel functional materials. Investigation of the optoelectronic properties revealed that the perylene core and dendritic oligothiophene units are electronically decoupled. In the DOTPBIs intramolecular fluorescence resonance energy transfer (FRET) and photoinduced electron transfer (PET) from the DOT to the PBI moiety have been investigated by various optical measurements, revealing that the PET process is facilitated with increasing DOT generation and donor strength. Electropolymerization led to interesting cross-linked donor acceptor-type conducting polymer films.