A novel fluorescent sensor for Cr3+ based on rhodamine-cored poly (amidoamine) dendrimer

Lei, Yonglin; Su, Yuanqiang; Huo, Jichuan

doi:10.1016/j.saa.2011.08.006

Cited by 34 publications

(7 citation statements)

References 31 publications

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“…However, the major disadvantages of these methods include the demand for expensive and complex apparatus along with complicated sample pretreatments in these time-consuming processes [25,26]. Over the past several years, fluorescent chemosensors have been developed as useful sensors for various metal ions due to their simplicity, specificity and sensitivity monitoring with a fast response time [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Design and synthesis of a novel chromium(III) selective fluorescent chemosensor bearing a thiodiacetamide moiety and two rhodamine B fluorophores

Bao

Cao

Nie

et al. 2015

Sensors and Actuators B: Chemical

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Section: Introductionmentioning

confidence: 99%

Design and synthesis of a novel chromium(III) selective fluorescent chemosensor bearing a thiodiacetamide moiety and two rhodamine B fluorophores

Bao

Cao

Nie

et al. 2015

Sensors and Actuators B: Chemical

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“…As demonstrated in the mechanism determinations in previous papers, rhodamine‐based chemosensors generally show drastic color changes that are visible to the naked eye, from colorless to purple or pink, because they are structurally transformed into a ring‐opened amide over the spirolactam forms. Following interaction of the probes with target species – such as cations, anions and neutral molecules – or by exposure to external factors such as heat and pressure, broadband amplification could be observed in both the UV‐Vis absorption and fluorescence emission spectra [6,37–49] . The instrumental analyses are verified in detail, which are included in the supplementary electronic information.…”

Section: Resultsmentioning

confidence: 94%

“…Following interaction of the probes with target speciessuch as cations, anions and neutral molecules -or by exposure to external factors such as heat and pressure, broadband amplification could be observed in both the UV-Vis absorption and fluorescence emission spectra. [6,[37][38][39][40][41][42][43][44][45][46][47][48][49] The instrumental analyses are verified in detail, which are included in the supplementary electronic information.…”

Section: Synthesis Of Chemosensorsmentioning

confidence: 99%

Two Colorimetric and Fluorescent Dual‐Channel Chemosensors for the Selective Detection of pH in Aqueous Solutions

Özdemir

2020

ChemistrySelect

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Fluorescent probe – which can detect metal ions, pH, and other analytical species through spectroscopic approaches – have recently attracted significant research attention in the fields of analytical and biological chemistry. For this study, two novel colorimetric and fluorescent probes, named RP1 and RP2, were designed and synthesized. Their structural confirmations were then achieved through elemental analysis, FT‐IR, NMR (1H and 13C) spectroscopies, and tandem MS spectrometry. To gain full understanding of the photophysical properties and chemosensory performances of these two dyes, both the UV‐Vis absorption and fluorescence titration experiments were carefully performed in aqueous media. Notably, upon treatment of RP1 and RP2 in solutions with each competitive metal ion, neither increases in absorption and fluorescence spectra above 400 nm nor any changes in color were observed. However, at lower pH (i. e.,<7.0), those two sensors exhibited a drastic change in color from colorless to pink, followed by broadened absorption bands. As expected, upon excitation at 510 nm, a strong enhancement of the fluorescence emissions was obtained. By conducting 1H NMR and optical titrations, the spirolactam‐ring opening reaction of these receptors, induced by H+ ions at lower pH, was approved. The results demonstrate that the fluorescent dyes RP1 and RP2 can be effectively used as reversible pH‐responsive chromogenic and fluorogenic “Off‐On” switches in real samples.

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“…In this section those papers are presented in which both core and periphery were modified. 22,35,37 In these cases the detection principles were based on using the PET or FRET mechanisms.…”

Section: Modified Pamam-type Dendrons For Sensor Applicationsmentioning

confidence: 99%

Application of PAMAM dendrimers in optical sensing

Soršak

Valh

Urek

et al. 2015

Analyst

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The need for an improved sensor performance is always encouraging us towards exploring new materials. Following the invention of dendrimers, the possibility was recognised of using them for improving optical sensor performance. Their more important aspects are their two main structural properties: three-dimensional structure and multiple terminal functional groups. In this review, firstly a brief introduction to dendrimers is provided with the focus on PAMAM dendrimers and optical sensors. Recent advances have been reported in those PAMAM dendrimer-based optical sensors, which are used for the detection of pH, cations, and other analyte.

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A novel fluorescent sensor for Cr3+ based on rhodamine-cored poly (amidoamine) dendrimer

Cited by 34 publications

References 31 publications

Design and synthesis of a novel chromium(III) selective fluorescent chemosensor bearing a thiodiacetamide moiety and two rhodamine B fluorophores

Design and synthesis of a novel chromium(III) selective fluorescent chemosensor bearing a thiodiacetamide moiety and two rhodamine B fluorophores

Two Colorimetric and Fluorescent Dual‐Channel Chemosensors for the Selective Detection of pH in Aqueous Solutions

Application of PAMAM dendrimers in optical sensing

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