A luminescent metal organic framework with high sensitivity for detecting and removing copper ions from simulated biological fluids

Zheng, Tiantian; Zhao, Jiao; Fang, Zhou-wen; Li, Mengting; Sun, C. P.; Xiao, Li; Wang, Xin-Long; Su, Zhong‐Min

doi:10.1039/c6dt04630d

Cited by 78 publications

(39 citation statements)

References 39 publications

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“…The coordinate bond enables the excited electrons to easily transfer from the fullerenol to the empty d orbital of Cu 2+ ions, thus hindering photoluminescence and accounting for the fluorescence quenching. These conclusions gain support from previous reports . The association constant ( K ) of the complexes can be obtained from the Benesie–Hildebrand Equation :

true \frac{1}{F_{0} - F} = \frac{1}{F_{0} - F_{\max}} = \frac{1}{K \times (F_{0} - F_{\max}) \times [Cu^{2 +}]}

…”

Section: Resultssupporting

confidence: 83%

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Fullerenols Revisited: Highly Monodispersed Photoluminescent Nanomaterials as Ideal Building Blocks for Supramolecular Chemistry

Zhou

Zhang

Feng

et al. 2018

Chemistry A European J

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Fullerenols have been known for decades; however, the photoluminescent (PL) properties and applications in supramolecular chemistry of these molecules have not been well addressed. Herein, a strategy has been developed to purify the as-prepared fullerenols, and the photoluminescence and capabilities of these molecules to form supramolecular self-assemblies were systematically studied. It was found that fullerenols show wavelength-dependent emission with an absolute fluorescent quantum yield of approximately 3.5 %. The PL characteristics are reminiscent of carbon dots, especially those obtained by using the top-down method. The studied fullerenols can be used to detect Cu ions with a limit of detection down to 3.50 μm. In addition, the amphiphilicity of the fullerenols can be readily tuned by ionic complexation with cationic surfactants, such as 1-tetradecyl-3-methylimidazoliumbromide (C mimB) and tetradecyltrimethylammonium bromide (TTAB). On increasing the concentration of the surfactant, the transition of aggregates was induced from highly ordered vesicles to honeycomb-structured crystals and finally to giant micelles. After the formation of supramolecular self-assemblies, enhancement of photoluminescence was observed, which can be ascribed to the suppression of intramolecular vibrations and motion combined with the loosely packed self-assembly array. This study provides a facile way to generate PL nanoarchitectures, which may find applications in fluorescent sensing, drug delivery, and optoelectronics.

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true \frac{1}{F_{0} - F} = \frac{1}{F_{0} - F_{\max}} = \frac{1}{K \times (F_{0} - F_{\max}) \times [Cu^{2 +}]}

…”

Section: Resultssupporting

confidence: 83%

“…These conclusions gain support from previous reports. [24][25][26] The association constant (K)o ft he complexes can be obtained from the Benesie-Hildebrand Equation (1)…”

Section: Spectroscopic Propertiesmentioning

confidence: 99%

Fullerenols Revisited: Highly Monodispersed Photoluminescent Nanomaterials as Ideal Building Blocks for Supramolecular Chemistry

Zhou

Zhang

Feng

et al. 2018

Chemistry A European J

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“…Conventional adsorbents have deficiencies, such as high operating and maintenance costs, the emission of secondary pollutants and, most importantly, a poor performance at very low concentrations. The preparation of metal-organic frameworks (MOFs) is an effective method for the absorption and selective separation of metal ions from water [12][13][14][15]. An MOF is a solid absorbent material made of secondary building units (SBUs), which includes metal clusters and organic linkers that create three-dimensional grids [16,17].…”

Section: Introductionmentioning

confidence: 99%

A Sonochemically-Synthesized Microporous Metal-Organic Framework for the Rapid and Efficient Ultrasonic-Assisted Removal of Mercury (II) Ions in a Water Solution and a Study of the Antibacterial Activity

Moradi

Rahimi

Safarifard

et al. 2019

The 23rd International Electronic Conference on Synthetic Organic Chemistry

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Nowadays, water pollution due to heavy metal ions is a great concern in all human communities. In this project, a metal-organic frameworks (MOFs), which were named Zn2(oba)2bpy, (1; H2oba = 4,4-oxybisbenzoic acid and bpy = 4,4-bipyridine) linkers, were successfully synthesized. The properties of these MOFs were investigated using different techniques, such as FT-IR, XRD, and SEM analysis. The frameworks have special characteristics, like the rapid, efficient, and selective removal of metal ions from contaminated water. The use of an ultrasonic device plays an important role in shortening the absorption time of mercury (II) ions by increasing absorbent dispersion in the solution. The adsorption capacity was affected by variables such as the pH of the solution, Hg2+ initial concentration, adsorbent dosage, and contact time. For Hg(II) metal ions, the sorption capacity of 338 mgg−1 was effectively obtained by Zn2(oba)2bpy structures. The experimental adsorption data for the Zn2(oba)2bpy MOF is well-suited to the pseudo-second-order kinetic model (R2 = 0.99), and the adsorption isotherms of Hg2+ metal ions are in good agreement with the Langmuir model. This work displays the effective removal of Hg2+ ions from pollutant water in under 30 min. The antibacterial activities of Zn2(oba)2bpy (1) were tested against gram-positive and gram-negative species. The as-synthesized 1 exhibited excellent antibacterial effectiveness against Escherichia coli and Staphylococcus aureus.

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“…The detection method had high sensitivity, a fast detection speed, and the advantages of easy operation. Currently, the literature reports on the benefits of using this property to detect metal ions, aromatic nitro compounds, and other small molecules [16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Syntheses, Structures, and Characteristics of Three Metal Complexes Constructed Using Hexacarboxylic Acid

Meng¹,

Zhao²,

Guo³

et al. 2019

Molecules

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In this study, three new 3D coordination polymers (CPs), {[Cd3(L)(H2O)6]·H2O}n (1), {[Cu1.5(L)0.5(bimb)1.5]·5H2O·DMF}n (2), and {[Mn1.5(H3L)(bibp)0.5(H2O)2]·3H2O}n (3) (bimb= 1,3-bis(imidazol-1-yl)benzene, bibp= 1,4-bis((4-imidazol-1-yl)benzyl)piperazine), were prepared under solvothermal or hydrothermal conditions based on a hexadentate ligand (1,3,5-triazine-2,4,6-triamine hexa-acetic acid (H6L)). Structural elucidations were carried out by IR spectra along with single-crystal X-ray diffraction analysis, while thermogravimetric analysis (TGA) (dynamic and isothermal) and XRD techniques were used for property evaluations of the polymers. Furthermore, the fluorescence properties and detection of the Fe3+ ions in 1 were tested at room temperature, and the electrochemical behavior of 2 is also stated in this article.

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A luminescent metal organic framework with high sensitivity for detecting and removing copper ions from simulated biological fluids

Cited by 78 publications

References 39 publications

Fullerenols Revisited: Highly Monodispersed Photoluminescent Nanomaterials as Ideal Building Blocks for Supramolecular Chemistry

Fullerenols Revisited: Highly Monodispersed Photoluminescent Nanomaterials as Ideal Building Blocks for Supramolecular Chemistry

A Sonochemically-Synthesized Microporous Metal-Organic Framework for the Rapid and Efficient Ultrasonic-Assisted Removal of Mercury (II) Ions in a Water Solution and a Study of the Antibacterial Activity

Syntheses, Structures, and Characteristics of Three Metal Complexes Constructed Using Hexacarboxylic Acid

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