This paper briefly reports the mechanism of non-radiative energy transfer process from Tb → Eu in Sodium fluoroborate glass by measuring the emission intensity of Tb with varying Eu concentration at room temperature. From the Fluorescence spectra, a decrease of terbium fluorescence intensity has been observed as a result of energy transfer from terbium ions to europium ions. Quantum efficiencie...

Optimized conditions, validation and practical applications of a new, rapid and specific fluorometric method for the determination of deferiprone (DFP) in urine and serum samples are reported. The proposed method, which is based on the formation of a luminescent complex with Tb(3+) ion, is evaluated in terms of linearity, accuracy, precision, stability, recovery and limits of detection (LOD) an...

A luminescent terbium ions/reduced graphene oxide complex (Tb-RGO) was successfully and rapidly synthesized by the microwave hydrothermal reaction via the interactions between terbium ions and the active oxygen functional groups of graphene oxide. The as-prepared material was porous stacked by multilayer graphene in all directions. Thus, the resulting product owed the high specific surface area...

The synthesis of two new polyaminocarboxylate macrocycles incorporating one or two intracyclic phenol units (H4L1 and H8L2, respectively) is described. The 12-membered H4L1 macrocycle leads to soluble and stable mononuclear LnIII complexes of [(L1)Ln(H2O)2]- composition (Ln = Eu, Tb and Gd) in aqueous solutions. In Tris buffer (pH 7.4), the [(L1)Tb(H2O)2]- complex displays a suitable efficiency...

A sensitive fluorometric method for the determination of deferiprone (DFP) based on the formation of a luminescent complex with Tb(3+) ions in aqueous solutions is reported. The maximum excitation and emission wavelengths were 295 and 545 nm, respectively. The effects of various factors on the luminescence intensity of the system were investigated and optimized, then under the optimum condition...

Attempts to grow terbium aluminium garnet (Tb3Al5O12, TAG) by the Czochralski method lead to crystals of millimeter scale. Larger crystals could not be obtained. DTA measurements within the binary system showed that TAG melts incongruently at 1840 ◦C. The perovskite (TbAlO3, TAP) with a congruent melting point of 1930 ◦C is the most stable phase in this system. The region for primary crystalliz...

A family of terbium probes was synthesized and evaluated for the luminescence detection of copper and zinc in water at neutral pH. Each probe incorporates a terbium ion chelated by a macrocyclic polyaminocarboxylate and conjugated to either one, two, or three phenanthridine antennas via a diamine linker. All three probes, Tb-1Phen, Tb-2Phen, and Tb-3Phen, exhibit similar responses toward copper...

Terbium, a fluorescent probe, which fluoresces primarily with guanine and xanthine bases, has been used to investigate the interaction of platinum complexes with DNA and RNA. c/sDichlorodiammineplatinum(ll), a potent antitumor agent, pro duced a marked enhancement in fluorescence intensity when reacted with double-stranded DNA. This can be explained by the c/s-dichlorodiammineplatinum(ll) produ...