A new rhodamine 6 G based chemosensor for trace level Al3+ and its thin film application in 100% aqueous medium

Ku, Kyosun; Muthukumar, P.; Angupillai, Satheshkumar; Son, Young-Α

doi:10.1016/j.snb.2016.05.143

Cited by 25 publications

(8 citation statements)

References 49 publications

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“…Charged, aromatic, and hydroxyl groups-containing amino acids are also well-known to interact with various metallic ions via noncovalent interactions [ 32 ]. The nitrogen atom of the amino group and oxygen atom of the carboxyl groups of Rhodamine is also reported for fluorometric detection of Al 3+ ions [ 48 , 49 ]. Unfortunately, in these reports, application of inherent properties of the terminal carboxylic groups of the casein peptides is yet to be understood.…”

Section: Resultsmentioning

confidence: 99%

A Spectral Probe for Detection of Aluminum (III) Ions Using Surface Functionalized Gold Nanoparticles

et al. 2017

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A simple green route has been developed for the synthesis of casein peptide functionalized gold nanoparticles (AuNPs), in which casein peptide acts as a reducing as well as the stabilizing agent. In this report, AuNPs have been characterized on the basis of spectroscopic and microscopic results; which showed selective and sensitive response toward Al3+ in aqueous media, and Al3+ induces aggregation of AuNPs. The sensing study performed for Al3+ revealed that the color change from red to blue was due to a red-shift in the surface plasmon resonance (SPR) band and the formation of aggregated species of AuNPs. The calibration curve determines the detection limit (LOD) for Al3+ about 20 ppb (0.067 μM) is presented using both decrease and increase in absorbance at 530 and 700 nm, respectively. This value is considerably lower than the higher limit allowed for Al3+ in drinking water by the world health organization (WHO) (7.41 μM), representing enough sensitivity to protect water quality. The intensity of the red-shifted band increases with linear pattern upon the interaction with different concentrations of Al3+, thus the possibility of producing unstable AuNPs aggregates. The method is successfully used for the detection of Al3+ in water samples collected from various sources, human urine and ionic drink. The actual response time required for AuNPs is about 1 min, this probe also have several advantages, such as ease of synthesis, functionalization and its use, high sensitivity, and enabling on-site monitoring.

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Section: Resultsmentioning

confidence: 99%

A Spectral Probe for Detection of Aluminum (III) Ions Using Surface Functionalized Gold Nanoparticles

et al. 2017

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“…The fluorescence intensity of the chemosensors increases abruptly in the presence of Al 3+ ions due to opening of the spirolactam ring (Scheme ). This mechanistic process has been supported by spectroscopic techniques such as 1 H, 13 C NMR, and FT-IR spectroscopy. ,,− , In the presence of Al 3+ ions, appreciable changes are observed in their 1 H NMR spectrum of free chemosensors. The presence of Al 3+ ion initiates spirolactam ring opening followed by rearrangement of double bonds.…”

Section: Resultsmentioning

confidence: 99%

“…This mechanistic process has been supported by spectroscopic techniques such as 1 H, 13 C NMR, and FT-IR spectroscopy. 31,34,[36][37][38]40 In the presence of Al 3+ ions, appreciable changes are observed in their 1 H NMR spectrum of free chemosensors. The presence of Al 3+ ion initiates spirolactam ring opening followed by rearrangement of double bonds.…”

Section: Acs Omegamentioning

confidence: 99%

“…Therefore, selective choice of metal ion can initiate spirolactam ring opening of rhodamine-based probes. A literature study reveals that rhodamine-based probes can selectively detect various metal ions like Al 3+ , Fe 3+ , Cr 3+ , Hg 2+ , Cu 2+ , etc. − Some recently reported rhodamine-based important chemosensors are collected in Chart S1 (Supporting Information). Chart S1 clearly shows that chemosensors reported in the present work have certain advantages regarding the crystal structure, real sample analysis, and cell imaging study in comparison to previously reported data .…”

Section: Introductionmentioning

confidence: 99%

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Development of Rhodamine 6G-Based Fluorescent Chemosensors for Al³⁺-Ion Detection: Effect of Ring Strain and Substituent in Enhancing Its Sensing Performance

et al. 2019

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Four rhodamine 6G-based chemosensors (H 3 L1–H 3 L4) are designed for selective detection of Al3+ ion. They are characterized using various spectroscopic techniques and X-ray crystallography. All absorption and emission spectral studies have been performed in 10 mM N-(2-hydroxyethyl)piperazine-N′-ethanesulfonic acid (HEPES) buffer solution at pH 7.4 in H2O/MeOH (9:1, v/v) at 25 °C. In absorption spectra, chemosensors exhibit an intense band around 530 nm in the presence of Al3+ ion. Chemosensors (H 3 L1–H 3 L4) are nonfluorescent when excited around 490 nm. The presence of Al3+ ion enhances the emission intensity (555 nm) many times. The formation of complexes 1–4 is established with the aid of different spectroscopic techniques. The limit of detection value obtained in the nanomolar range confirms the high sensitivity of the probes toward Al3+ ion. It has been observed that the presence of aliphatic spacers in the diamine part and different halogen substituents in the salicylaldehyde part strongly influences the selectivity of the chemosensors toward Al3+ ion. The propensity of the chemosensors to identify intracellular Al3+ ions in triple-negative human breast cancer cell line MDA-MB-468 by fluorescence imaging is also examined in this study.

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“…[5] The detection of Al 3 + is very tricky because of its poor chelating ability, strong hydration ability, and lack of spectroscopic behaviour. [31][32][33][34] Therefore, the construction of probes for the selective detection of Al 3 + is very crucial.…”

Section: Introductionmentioning

confidence: 99%

Selective Turn‐On Aluminium Ions Detection of NBD⁽⁺⁾ Appended Schiff‐Base Fluorophore

et al. 2020

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The Al3+ sensor, 7‐nitrobenz‐2‐oxa‐1, 3‐diazole (NBD) derived fluorescent probe 2‐((E)‐(4‐(phenylamino)benzo[c][1,2,5]oxadiazol‐7‐ylimino)methyl) phenol (3) was synthesized and characterized by various spectral methods and crystallography. The compound (3) exhibits dual channel (fluorometric and colorimetric) sensor behaviour. It has high selectivity for Al3+ detection, produced significant fluorescence enhancement in the presence of Al3+ ion. It shows ‘‘turn off–on’’ fluorescent responses toward Al3+ in semi aqueous medium. Here, the correlative the properties of a photo sensor (NBD based schiff‘s base 3 with normal NBD derivatives 1, 2) towards Al3+ was studied. The solvent effect and cation sensing properties were investigated from ultraviolet spectroscopy and fluorescence spectroscopic methods. The facile synthetic probe 3 will alternative and open new opportunities in bio‐imaging of Al3+ in various cell lines. This will certainly be helpful in understanding the fundamental mechanism of aluminium‐induced human diseases.

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A new rhodamine 6 G based chemosensor for trace level Al3+ and its thin film application in 100% aqueous medium

Cited by 25 publications

References 49 publications

A Spectral Probe for Detection of Aluminum (III) Ions Using Surface Functionalized Gold Nanoparticles

A Spectral Probe for Detection of Aluminum (III) Ions Using Surface Functionalized Gold Nanoparticles

Development of Rhodamine 6G-Based Fluorescent Chemosensors for Al³⁺-Ion Detection: Effect of Ring Strain and Substituent in Enhancing Its Sensing Performance

Selective Turn‐On Aluminium Ions Detection of NBD⁽⁺⁾ Appended Schiff‐Base Fluorophore

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A new rhodamine 6 G based chemosensor for trace level Al3+ and its thin film application in 100% aqueous medium

Cited by 25 publications

References 49 publications

A Spectral Probe for Detection of Aluminum (III) Ions Using Surface Functionalized Gold Nanoparticles

A Spectral Probe for Detection of Aluminum (III) Ions Using Surface Functionalized Gold Nanoparticles

Development of Rhodamine 6G-Based Fluorescent Chemosensors for Al3+-Ion Detection: Effect of Ring Strain and Substituent in Enhancing Its Sensing Performance

Selective Turn‐On Aluminium Ions Detection of NBD(+) Appended Schiff‐Base Fluorophore

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Product

Resources

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Development of Rhodamine 6G-Based Fluorescent Chemosensors for Al³⁺-Ion Detection: Effect of Ring Strain and Substituent in Enhancing Its Sensing Performance

Selective Turn‐On Aluminium Ions Detection of NBD⁽⁺⁾ Appended Schiff‐Base Fluorophore