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Photoluminescence and thermoanalytical studies of complexes based on 5-Cl-8-hydroxyquinoline and calixarene ligands.
A innovative 5-Cl-8-oxyquinolinepropoxycalixarene ligand (2) have been prepared, exhibiting, at room temperature, blue fluorescent light emission and resulting in shift band to green fluorescent li...Read More
The interplay between myosin, actin, and striated muscle regulatory proteins involves complex cooperative interactions that propagate along the thin filament. A repeating unit of the tropomyosin dimer...Read More
Investigation of crystal structure influence on spectroscopic and photoluminescent properties of terbium-picrate triethylene glycol complex.
The [Tb(Pic)(2)(H(2)O)(EO3)](Pic)·0.5(EO3) complex, for which EO3 and Pic stand for triethylene glycol and picrate anion, respectively, was successfully prepared and characterized. The Tb(III) comple...Read More
Rare earth (RE) Tb(3+)-doped high quality ZnSe nanocrystals (NCs) were synthesized by a facile chemical hot-injection method. ZnSe:Tb(3+) nanocrystals exhibited broadband absorption below the first ex...Read More
Lanthanide coordination polymer nanoparticles for sensing of mercury(II) by photoinduced electron transfer.
The metal-organic coordination polymers at the nanoscale have emerged as attractive nanomaterials due to their tunable nature. In this work, we for the first time prepared an adenine-based lanthanide ...Read More
Preparation and study of an f,f,f',f'' covalently linked tetranuclear hetero-trimetallic complex - a europium, terbium, dysprosium triad.
A heterotrimetallic tetranuclear lanthanide complex containing two dysprosium ions, a terbium ion and a europium ion has been prepared by coupling three kinetically stable complexes together using the...Read More
Photoluminescence spectra and luminescence kinetics of pure CaMoO(4) and CaMoO(4) doped with Ln(3+) (Ln?=?Pr or Tb) are presented. The spectra were obtained at high hydrostatic pressure up to 240?kbar...Read More
Utilizing Tb(3+) as an energy transfer bridge to connect Eu(2+)-Sm(3+) luminescent centers: realization of efficient Sm(3+) red emission under near-UV excitation.
The Eu → Tb → Sm energy transfer scheme has been proposed to realize the sensitization of Sm ion emission by Eu ions. Following this energy transfer model, near-UV convertible Sm-activated orange ...Read More
Effect of the crystal structure of small precursor particles on the growth of β-NaREF(4) (RE = Sm, Eu, Gd, Tb) nanocrystals.
The origin of the narrow particle size distributions obtained in the oleic acid-based synthesis of hexagonal phase β-NaREF(4) nanocrystals (RE = Sm, Eu, Gd, Tb) has been investigated. Compared to the...Read More
The single C-terminal helix of human phospholipid scramblase 1 is required for membrane insertion and scrambling activity.
Human phospholipid scramblase 1 (hPLSCR1) belongs to the ATP-independent class of phospholipid translocators which possess a single EF-hand-like Ca(2+)-binding motif and also a C-terminal helix (CTH)....Read More
Monitoring pH-triggered drug release from radioluminescent nanocapsules with X-ray excited optical luminescence.
One of the greatest challenges in cancer therapy is to develop methods to deliver chemotherapy agents to tumor cells while reducing systemic toxicity to noncancerous cells. A promising approach to loc...Read More
A New Indicator for Potassium Ions at Physiological pH by Using a Macrocyclic Luminescent Metal Complex.
Anyone for a π-type sandwich? A luminescent indicator was developed based on the potassium-binding-induced conformational change of a macrocyclic terbium complex. The indicator adopts a random coil c...Read More
A unique matched quadruplet of terbium radioisotopes for PET and SPECT and for α- and β- radionuclide therapy: an in vivo proof-of-concept study with a new receptor-targeted folate derivative.
Terbium offers 4 clinically interesting radioisotopes with complementary physical decay characteristics: (149)Tb, (152)Tb, (155)Tb, and (161)Tb. The identical chemical characteristics of these radiois...Read More
A signal-on fluorescent aptasensor based on Tb3+ and structure-switching aptamer for label-free detection of Ochratoxin A in wheat.
On the basis of Tb(3+), structure-switching aptamer and magnetic beads (MBs), a signal-on fluorescent aptasensor was developed for the label-free determination of OTA in wheat. Initially, the specific...Read More
Water-dispersible hydrophilic fluoridated HAp:Ln(3+) (Ln = Eu or Tb) nanoparticles were prepared via hydrophobic/hydrophilic transformation with surfactants (Pluronic F127). The HAp:Ln(3+) (Ln = Eu or...Read More
Nano-positioning system for structural analysis of functional homomeric proteins in multiple conformations.
Proteins may undergo multiple conformational changes required for their function. One strategy used to estimate target-site positions in unknown structural conformations involves single-pair resonance...Read More
Highly selective sensing of cytidine triphosphate (CTP) against other triphosphate nucleosides including ATP, GTP and UTP is successfully achieved with a luminescent terbium(iii)-organic framework (Tb...Read More
Translational bypassing is a unique phenomenon of bacteriophage T4 gene 60 mRNA wherein the bacterial ribosome produces a single polypeptide chain from a discontinuous open reading frame (ORF). Upon r...Read More
We report the rational design of a 20-mer basic peptide, derived from the transcriptional antitermination protein N of bacteriophage P22, equipped with a luminescent DOTA[Tb(3+)] macrocyclic complex a...Read More
Simple and sensitive detection method for Cobalt(II) in water using CePO4:Tb3+ nanocrystals as fluorescent probes.
A simple and sensitive method for detecting cobalt by synchronous fluorescence spectrometry technique with a novel fluorescence probe CePO4:Tb(3+) has been developed. CePO4:Tb(3+) nanocrystals were sy...Read More
Development of a ratiometric time-resolved luminescence sensor for pH based on lanthanide complexes.
Time-resolved luminescence bioassay technique using lanthanide complexes as luminescent probes/sensors has shown great utilities in clinical diagnostics and biotechnology discoveries. In this work, a ...Read More
Contrasting behaviour of the co-activators in the luminescence spectra of Y(2)O(2)S:Tb(3+),Er(3+) nanometre sized particles under UV and red light excitation.
Nanometre sized particles of terbium and erbium co-doped yttrium oxysulfide up-converting phosphors were prepared by a urea homogeneous-precipitation method. Results from X-ray powder diffraction (XRP...Read More
Six-color time-resolved f?rster resonance energy transfer for ultrasensitive multiplexed biosensing.
Simultaneous monitoring of multiple molecular interactions and multiplexed detection of several diagnostic biomarkers at very low concentrations have become important issues in advanced biological and...Read More
Multifunctional magnetic fluorescent hybrid nanoparticles as carriers for the hydrophobic anticancer drug 5-fluorouracil.
In this paper fluorescent magnetic Fe(3)O(4)@m-SiO(2)@YPO(4):Tb(3+) particles with a size of 52 nm have been prepared and characterized. The surface of the nanoparticles was modified with β-cyclodext...Read More
The usefulness of Tb(4)O(7) nanoparticles (NPs) as analytical reagents using sensitized luminescence as a detection system is described for the first time, and the results obtained are compared with t...Read More