Self-assembled lipid vesicles with embedded amphiphilic terbium(III) complexes show a strong temperature dependence of their phosphorescence intensity and lifetime in the physiological range.

The interaction of the trivalent lanthanides Ce(III), Eu(III), and Tb(III) with sodium deoxyribonucleic acid (DNA) in aqueous solution has been studied using their luminescence spectra and decays. Complexation with DNA is indicated by changes in luminescence intensity. In the system terbium(III)-DNA, changes in luminescence with pH are suggested to be due to the protonation of phosphate groups....

Terbium(III) was coordinated to four novel 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) amphiphilic bisamide ligands. The complexes were assembled into mono-disperse micellar nano-aggregates and for the first time Tb(III) has been evaluated as a single lanthanide negative bimodal contrast agent for MRI/OI. The complexes show characteristic Tb(III) emission with quantum yields...

The effect of silicon concentration and annealing temperature on terbium luminescence was investigated for thin silicon rich silicon oxide films. The structures were deposited by means of plasma enhanced chemical vapor deposition. The structural properties of these films were investigated by Rutherford backscattering spectrometry, transmission electron microscopy and Raman scattering. The optic...

Emissive terbium complexes, suitable for protein conjugation, incorporating a pyrazoyl-1-aza-xanthone chromophore have been prepared; they exhibit cellular uptake and possess a much lower sensitivity to excited state quenching.

Six bidentate building blocks have been used to form a tripodal ligand with a flexible C3 symmetric spacer to direct the assembly of large octametallic clusters covalently linked to form a 1-D highly luminescent terbium tube-like polymer.

Diffusion-enhanced fluorescence energy transfer was used to study the structure of photoreceptor membranes from bovine retinal rod outer segments. The fluorescent energy donor was Tb 3+ chelated to dipicolinate and the acceptor was the 11-cis retinal chromophore of rhodopsin in vesicles made from disc membranes. The rapid-diffusion limit for energy transfer was attained in these experiments bec...

This communication presents a new terbium(III) complex that shows the highest luminescence quantum yield among the oxygen-sensitive lanthanide complexes (Φ = 0.91 under N2, Φ = 0.054 under air).