A facile synthetic route to convert Tb(<scp>iii</scp>) complexes of novel tetra-1,3-diketone calix[4]resorcinarene into hydrophilic luminescent colloids

Shamsutdinova, Nataliya; Podyachev, Sergey N.; Sudakova, Svetlana N.; Mustafina, Asiya R.; Zairov, Rustem; Burilov, Vladimir; Nizameev, Irek R.; Ризванов, И. Х.; Syakaev, Victor V.; Gabidullin, Bulat; Katsuba, Sergey; Gubaidullin, А. Т.; Сафиуллин, Г. М.; Dehaen, Wim

doi:10.1039/c4nj00637b

Cited by 19 publications

(23 citation statements)

References 51 publications

(78 reference statements)

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“…The previously reported results [25] reveal various coordination modes for the Tb(III) complexes in the alkalized DMF solutions, which are in the equilibrium with each other (Scheme 1). Since the nanosized colloids are positively charged the negatively charged polyelectrolyte (PSS) is optimal for the first polyelectrolyte layer deposition.…”

Section: Degradation Of Tb(iii)-centered Luminescence In the Colloidsmentioning

confidence: 84%

“…Since the nanosized colloids are positively charged the negatively charged polyelectrolyte (PSS) is optimal for the first polyelectrolyte layer deposition. The two-layered colloids can be obtained by the deposition of positively charged polyethyleneimine (PEI) on the PSS-coated nanoparticles [15,[25][26][27].…”

Section: Degradation Of Tb(iii)-centered Luminescence In the Colloidsmentioning

confidence: 99%

“…The recently published results [25] represent the luminescent colloids based on Tb(III) complexes with tetra-␤-diketone calix [4]resorcinarene, where the hard nanosized complex-based species are coated by the soft polyelectrolyte multilayers. The present work is aimed at highlighting the impact of interfacial processes, including the degradation of the hard templates, in a generation of the substrate-induced luminescent response of the colloids.…”

Section: Introductionmentioning

confidence: 98%

“…Our previous reports introduce rather simple and convenient synthetic route of getting luminescent aqueous colloids based on lanthanide complexes [25][26][27][28]. The basis of the introduced approach is the precipitation of the luminescent lanthanide complexes from organic to aqueous solutions followed by a stabilization of the obtained colloids through an adsorption of polyelectrolytes onto hard templates [25][26][27][28].…”

Section: Introductionmentioning

confidence: 98%

“…The basis of the introduced approach is the precipitation of the luminescent lanthanide complexes from organic to aqueous solutions followed by a stabilization of the obtained colloids through an adsorption of polyelectrolytes onto hard templates [25][26][27][28]. A water insolubility of the lanthanide complexes is a key factor affecting both colloid and luminescent stability of the colloids.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Interfacial interactions of hard polyelectrolyte-stabilized luminescent colloids with substrates

Shamsutdinova

Zairov

Mustafina

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Section: Degradation Of Tb(iii)-centered Luminescence In the Colloidsmentioning

confidence: 84%

Section: Degradation Of Tb(iii)-centered Luminescence In the Colloidsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Interfacial interactions of hard polyelectrolyte-stabilized luminescent colloids with substrates

Shamsutdinova

Zairov

Mustafina

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Polyelectrolyte-Stabilized Nanotemplates Based on Gd(III) Complexes with Macrocyclic Tetra-1,3-diketones as a Positive MR Contrast Agents

et al. 2016

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The work presents for the first time aqueous colloids prepared from Gd(III) complexes with 1,3-diketone derivatives as promising candidates for positive MR contrast agents (CA). The obtained colloids are based on reprecipitation of water insoluble Gd(III) complexes from organic to aqueous phases with further stabilization via layer-by-layer deposition of oppositely charged polyelectrolytes. A complex of experimental techniques reveals amorphous 3-6 nm sized Gd(III)-based hard templates encapsulated into soft polyelectrolyte capsules. Magnetic field and coating effects on T 1 -and T 2 -relaxivities for colloids with mono-, bi-and tri-layer polyelectrolyte deposition onto Gd(III)-based templates are revealed. The relaxivities of the mono-layered colloids are greater than those of commercial mononuclear Gd (III) CA. Water molecular correlation times in aqueous solutions of novel Gd(III)-based nanoparticles were calculated. T 1 -and T 2weighted MRI data show strong positive contrast.

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Polystyrenesulfonate-coated nanoparticles with low cytotoxicity for determination of copper(II) via the luminescence of Tb(III) complexes with new calix[4]arene derivatives

et al. 2018

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The authors describe new ligands with two 1,3-diketone groups and two heteroaromatic (pyridyl or quinolyl) moieties embedded to the upper and lower rims of dibromo-substituted calix[4]arene scaffold. The ligands bind Tb(III) ions in alkaline DMF solutions to form 1:1 complexes. The strong Tb(III)-centered luminescence (with excitation/emission peaks at 330/545 nm) of the complexes results from efficient ligand-to-metal energy transfer. The complexes were incorporated into polystyrenesulfonate (PSS) colloids by diluting a DMF solution of the complex with aqueous solution of PSS. The luminescence of the colloids is quenched by copper(II), and this was used to develop a method for its fluorometric determination in nanomolar concentrations. The lower limit of detection is 0.88 nM. Quenching is a result of (a) ion exchange which converts the terbium complexes into their copper counterparts, and (b) energy transfer from Tb(III) to Cu(II) complexes. The low cytotoxicity of the colloidal nanoprobe conceivably makes it a promising tool for use in cellular imaging. Graphical abstract New calix[4]arene derivative provide efficient binding sites for Tb(III) and Cu(II) ions. The Tb(III) complexes were embedded to core-shell nanoparticles by solvent-mediated aggregation followed by polystryrenesulfonate deposition. The nanoparticles exhibit luminescence response on copper ions in nanomolar concentration range.

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A facile synthetic route to convert Tb(iii) complexes of novel tetra-1,3-diketone calix[4]resorcinarene into hydrophilic luminescent colloids

Cited by 19 publications

References 51 publications

Interfacial interactions of hard polyelectrolyte-stabilized luminescent colloids with substrates

Interfacial interactions of hard polyelectrolyte-stabilized luminescent colloids with substrates

Polyelectrolyte-Stabilized Nanotemplates Based on Gd(III) Complexes with Macrocyclic Tetra-1,3-diketones as a Positive MR Contrast Agents

Polystyrenesulfonate-coated nanoparticles with low cytotoxicity for determination of copper(II) via the luminescence of Tb(III) complexes with new calix[4]arene derivatives

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