A cyanine-based colorimetric and fluorescent probe for highly selective sensing and bioimaging of phosphate ions

Liu, Bo; Wang, Huan; Yang, Dan; Tan, Rui; Zhao, Ruirui; Xu, Rui; Zhou, Zhang Jian; Zhang, Jun Feng; Zhou, Ying

doi:10.1016/j.dyepig.2016.04.032

Cited by 27 publications

(13 citation statements)

References 24 publications

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“…Stock suspensions of Cy1 doped PMMA nanoparticles were diluted in water to yield 0.2 OD suspensions of 3 mL and spiked with 2, 5, 7, 10,12,14,17,19,22,24,27,29,31,34,36,42,48,54 and 60 ppm of Cu 2+ . The resulting suspensions were spectroscopically evaluated at 455, 630 and 668 nm and visually followed for any colourimetric changes.…”

Section: Metal Sensing By Dye-doped Pmma Nanoparticlesmentioning

confidence: 99%

“…Cyanine-analyte interactions can present colourimetric alterations, allowing for easy analysis and detection of the intended analyte in solution [22], making them ideal candidates as colourimetric probes for metal detection. Furthermore, these types of systems have the potential to detect concentrations in the ppm and ppb ranges, due to the high sensitivity that cyanine dyes present for metal ions in solution [23].…”

Section: Introductionmentioning

confidence: 99%

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Development of Cyanine 813@Imidazole-Based Doped Supported Devices for Divalent Metal Ions Detection

et al. 2022

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A NIR cyanine@imidazole derivative Cy1 was synthesized and evaluated as a metal ion sensor in solution. Cy1 was shown to be very sensitive to all metal ions tested, presenting a blue shift in the absorption from 668 nm to 633 nm, followed by a change in colour from pale green to blue with Zn2+, Cd2+, Co2+, Ni2+ and Hg2+ ions. Despite the blue shift in the absorption, a decrease at 633 nm (with a colour change from pale green to colourless), as well as a quenching in the emission intensity at 785 nm were observed for Cu2+ ions. The results show the formation of sandwich complexes of two ligands per metal ion with the highest association constant observed for Cu2+ (Log Kass.abs = 14.76 ± 0.09; Log Kass.emis. = 14.79 ± 0.06). The minimal detectable amounts were found to be 31 nM and 37 nM, with a naked eye detection of 2.9 ppm and 2.1 ppm for Hg2+ and Cu2+ ions, respectively. These results prompted us to explore the applicability of Cy1 by its combination with nanomaterials. Thus, Cy1@ doped MNs and Cy1@ doped PMMA nanoparticles were synthesized. Both nanosystems were shown to be very sensitive to Cu2+ ions in water, allowing a naked-eye detection of at least 1 ppm for Cy1@ doped MNs and 7 ppm for Cy1@ doped PMMA. This colourimetric response is an easy and inexpensive way to assess the presence of metals in aqueous media with no need for further instrumentation.

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Section: Metal Sensing By Dye-doped Pmma Nanoparticlesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of Cyanine 813@Imidazole-Based Doped Supported Devices for Divalent Metal Ions Detection

et al. 2022

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“…At the same time, cyanine dyes have good water solubility, low toxicity, and mitochondrial targeting properties. [46][47][48][49][50][51] Triphenylamine and its derivatives have effective electron donating ability. 52 Therefore, we combined benzoindole and triphenylamine to develop a fluorescent probe (Scheme 1) based on the CQC double bond addition reaction.…”

Section: Introductionmentioning

confidence: 99%

A novel fluorescent probe based on triphenylamine for detecting sulfur dioxide derivatives

Sun

Bao

et al. 2022

New J. Chem.

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“…It is now well established that anions play a significant role in both human health and environmental pollution with phosphate anions being particularly prevalent owing to their essential role in metabolism, energy transduction and their use in agricultural fertilizers and pesticides [22–25] . While several phosphate sensors have been developed, [26−29] the large majority of these have solely operated in organic solvents, and those that achieve selective anion recognition in aqueous solution remain scarce. Towards this end, Gunnlaugsson et al .…”

Section: Introductionmentioning

confidence: 99%

Squaramide‐Based Self‐Associating Amphiphiles for Anion Recognition

et al. 2021

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The synthesis and characterisation of two novel self‐assembled amphiphiles (SSAs) SQS‐1 and SQS‐2 are reported. Both compounds, based on the squaramide motif, were fully soluble in a range of solvents and were shown to undergo self‐assembly through a range of physical techniques. Self‐assembly was shown to favour the formation of crystalline domains on the nanoscale but also fibrillar film formation, as suggested by SEM analysis. Moreover, both SQS‐1 and SQS‐2 were capable of anion recognition in DMSO solution as demonstrated using 1H NMR and UV/Vis absorption spectroscopy, but displayed lower binding affinities for various anions when compared against other squaramide based receptors. In more competitive solvent mixtures SQS‐1 gave rise to a colourimetric response in the presence of HPO42− that was clearly visible to the naked eye. We anticipate that the observed response is due to the basic nature of the HPO42− anion when compared against other biologically relevant anions.

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A cyanine-based colorimetric and fluorescent probe for highly selective sensing and bioimaging of phosphate ions

Cited by 27 publications

References 24 publications

Development of Cyanine 813@Imidazole-Based Doped Supported Devices for Divalent Metal Ions Detection

Development of Cyanine 813@Imidazole-Based Doped Supported Devices for Divalent Metal Ions Detection

A novel fluorescent probe based on triphenylamine for detecting sulfur dioxide derivatives

Squaramide‐Based Self‐Associating Amphiphiles for Anion Recognition

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