A colorimetric sensor for the sequential detection of Cu2+and CN−in fully aqueous media: practical performance of Cu2+

You, Ga Rim; Park, Gyeong Jin; Lee, Jae Jun; Kim, Cheal

doi:10.1039/c5dt00772k

Cited by 148 publications

(51 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But unregulated Cu 2+ ions can cause various issues, such as organ damage (liver and kidney) and neurodegenerative diseases (Alzheimer's and Wilson's diseases) . The World Health Organization (WHO) has set the maximum allowable level of copper in drinking water at 2 ppm (31.5 μ m ) . Therefore, qualitative and quantitative determination of Cu 2+ ions is crucial.…”

Section: Resultsmentioning

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

View full text Add to dashboard Cite

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.

show abstract

Section: Resultsmentioning

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

View full text Add to dashboard Cite

show abstract

“…S10 †), which was much lower than that (3.0 × 10 −5 M) recommended by WHO in drinking water. 14,63,64 To further check the practical applicability of receptor 1 as a Cu 2+ selective sensor, the competition experiments were conducted ( Fig. 14,63,64 To further check the practical applicability of receptor 1 as a Cu 2+ selective sensor, the competition experiments were conducted ( Fig.…”

Section: Spectroscopic Studies Of 1 Toward Co 2+ and Cu 2+mentioning

confidence: 99%

A phthalazine-based two-in-one chromogenic receptor for detecting Co²⁺and Cu²⁺in an aqueous environment

et al. 2015

Self Cite

View full text Add to dashboard Cite

A new multifunctional and highly selective chemosensor for Co(2+) and Cu(2+) was designed and synthesized. could simultaneously detect both Co(2+) and Cu(2+) by changing its color from pale yellow to pink and to orange in a near-perfect aqueous solution. The binding modes of to Co(2+) and Cu(2+) were determined to be a 2 : 1 complexation stoichiometry through Job's plot, ESI-mass spectrometry analysis and (1)H NMR titration. The detection limits (1.5 and 2.1 μM) of for Co(2+) and Cu(2+) were lower than the DEP guidelines (1.7 μM for Co(2+)) and the WHO guidelines (31.5 μM for Cu(2+)) for drinking water. The chemosensor could be used to quantify Co(2+) and Cu(2+) in water samples. Moreover, could be used as a practical, visible colorimetric test kit for both Co(2+) and Cu(2+). The sensing mechanisms of Co(2+) and Cu(2+) by were supported by theoretical calculations.

show abstract

“…And, copper is an essential trace element in living organisms. As a catalytic cofactor of metalloenzymes, it participates in some enzymatic reactions and some redox processes in living organisms, and plays a vital role in life processes . However, it is important to keep copper ion within a reasonable range.…”

Section: Introductionmentioning

confidence: 99%

An Ultra‐Sensitive Naphthalimide‐Derived Fluorescent Probe for the Detection of Cu²⁺ in Water Samples and Living Cells

et al. 2019

View full text Add to dashboard Cite

In this work, a highly sensitive and selective fluorescent probe L based on naphthalimide derivative is developed for detection of Cu2+ ion in water samples and living cells. The probe displays excellent performance with great selectivity for Cu2+ ion detection in CH3CN/phosphate buffered saline (PBS, 10 mM, 9:1, v/v). The fluorescence of probe L is almost completely quenched upon the addition of Cu2+. The 2:1 stoichiometry of L–Cu2+ complex is confirmed by a Job's plot and ESI‐MS analysis. More evidence about the interaction mechanism of L with Cu2+ is 1H NMR titration data and density functional theoretical (DFT) studies. More importantly, the probe L with good cell permeability has been successfully applied to intracellular imaging of Cu2+ in A549 cells.

show abstract

A colorimetric sensor for the sequential detection of Cu²⁺and CN⁻in fully aqueous media: practical performance of Cu²⁺

Cited by 148 publications

References 52 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 phthalazine-based two-in-one chromogenic receptor for detecting Co²⁺and Cu²⁺in an aqueous environment

An Ultra‐Sensitive Naphthalimide‐Derived Fluorescent Probe for the Detection of Cu²⁺ in Water Samples and Living Cells

Contact Info

Product

Resources

About

A colorimetric sensor for the sequential detection of Cu2+and CN−in fully aqueous media: practical performance of Cu2+

Cited by 148 publications

References 52 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 phthalazine-based two-in-one chromogenic receptor for detecting Co2+and Cu2+in an aqueous environment

An Ultra‐Sensitive Naphthalimide‐Derived Fluorescent Probe for the Detection of Cu2+ in Water Samples and Living Cells

Contact Info

Product

Resources

About

A colorimetric sensor for the sequential detection of Cu²⁺and CN⁻in fully aqueous media: practical performance of Cu²⁺

A phthalazine-based two-in-one chromogenic receptor for detecting Co²⁺and Cu²⁺in an aqueous environment

An Ultra‐Sensitive Naphthalimide‐Derived Fluorescent Probe for the Detection of Cu²⁺ in Water Samples and Living Cells