Optical chemosensors for Hg<sup>2+</sup>from terthiophene appended rhodamine derivatives: FRET based molecular and in situ hybrid gold nanoparticle sensors

Kaewtong, Chatthai; Niamsa, Noi; Wanno, Banchob; Morakot, Nongnit; Pulpoka, Buncha; Tuntulani, Thawatchai

doi:10.1039/c4nj00412d

Cited by 27 publications

(11 citation statements)

References 125 publications

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“…However, these chemosensors cannot differentiate the fluorescent signal from Ca 2+ and Mg 2+ due to similar binding events of crown ethers with these two metal ions. Taking advantage of a similar principle, rhodamine-functionalized AuNPs were also employed to develop “turn-on” fluorescent sensors for sensitive detection of Hg 2+ [80] and Zn 2+ [81], with a LOD of 0.32 μM and 0.05 mg/L, respectively. A fluorescence resonance energy transfer (FRET) -based “turn-off” sensor for Cu 2+ has been recently developed using FITC modified AuNPs by Hormozi-Nezhad et al [82].…”

Section: Noble Metal Nanomaterials-based Fluorescent Nanoprobes Fomentioning

confidence: 99%

Fluorescent nanoprobes for sensing and imaging of metal ions: Recent advances and future perspectives

et al. 2016

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Summary Recent advances in nanoscale science and technology have generated nanomaterials with unique optical properties. Over the past decade, numerous fluorescent nanoprobes have been developed for highly sensitive and selective sensing and imaging of metal ions, both in vitro and in vivo. In this review, we provide an overview of the recent development of the design and optical properties of the different classes of fluorescent nanoprobes based on noble metal nanomaterials, upconversion nanoparticles, semiconductor quantum dots, and carbon-based nanomaterials. We further detail their application in the detection and quantification of metal ions for environmental monitoring, food safety, medical diagnostics, as well as their use in biomedical imaging in living cells and animals.

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Section: Noble Metal Nanomaterials-based Fluorescent Nanoprobes Fomentioning

confidence: 99%

Fluorescent nanoprobes for sensing and imaging of metal ions: Recent advances and future perspectives

et al. 2016

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“…Rhen was synthesized according to a procedure in the literature with slight modification . Rhodamine B (0.40 g, 0.84 mmol) was dissolved in 10 mL of MeOH, and ethylenediamine (0.44 mL, excess) was added dropwise to the solution and refluxed until the solution lost its red color.…”

Section: Methodsmentioning

confidence: 99%

A pH optical and fluorescent sensor based on rhodamine modified on activated cellulose paper

Taweetanavanich

Wanno

Tuntulani

et al. 2018

J Chinese Chemical Soc

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A rhodamine-based colorimetric and fluorescent pH chemosensor (RhA) was designed and synthesized via a coupling reaction between rhodamine ethylenediamine and succinic anhydride. RhA showed excellent pH response in aqueous solutions. In addition, common cations (Na + , K + , Ag + , Mg 2+ , Ca 2+ , Pb 2+ , Co 2+ , Ni 2+ , Cu 2+ , Zn 2+ , Cd 2+ , Hg 2+ , Al 3+ , Cr 3+ , Fe 3+ , Au 3+ , Pt 2+ , and Ru 2+ ) did not interfere with the pH response. As it has the potential to be used as a portable pH sensor, RhA was immobilized on activated cellulose paper using N,N'dicyclohexylcarbodiimide (DCC) and N,N'-dimethylpyridin-4-amine (DMAP) as the coupling reagent to obtain a composite pH sensor (CP-RhA). CP-RhA was characterized by ATR-FTIR, UV-vis, and fluorescence spectroscopy, and by scanning electron microscopy (SEM). CP-RhA showed a rapid response in the pH range 1-8 through color and fluorescence changes. DFT calculations showed a blue-shifted spectrum in the protonated form compared to the neutral form. Moreover, the pH sensor paper could be reused by dipping in NaOH. Thus, our work demonstrates the potential of the rhodamine dye composite for visualizing pH changes in real systems.

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“…Functional pendant groups carrying an amine or a carboxylic acid were attached respectively to trimer carboxylic acid [ 303 , 304 , 377 , 378 , 379 , 380 , 381 ] or amine ( Scheme 20 , I and II) [ 207 , 208 , 209 , 382 ]. The amide formation occurs on the side group of the central thiophene either before [ 377 , 378 , 379 , 380 ] or after [ 207 , 381 , 382 ] the formation of the trimer and it is typically achieved by carboxylic acid activation by acyl chloride [ 207 , 208 , 209 , 378 ] or a carbodiimide coupling agent [ 377 , 379 , 380 , 381 ], followed by amine nucleophilic substitution. Instead, the reaction between a trimer diester and hydrazine leads to the formation of a pyridazinedione pendant group on the central unit ( Scheme 20 , III) [ 366 , 367 ].…”

Section: Trimer Structuresmentioning

confidence: 99%

Thiophene-Based Trimers and Their Bioapplications: An Overview

et al. 2021

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Certainly, the success of polythiophenes is due in the first place to their outstanding electronic properties and superior processability. Nevertheless, there are additional reasons that contribute to arouse the scientific interest around these materials. Among these, the large variety of chemical modifications that is possible to perform on the thiophene ring is a precious aspect. In particular, a turning point was marked by the diffusion of synthetic strategies for the preparation of terthiophenes: the vast richness of approaches today available for the easy customization of these structures allows the finetuning of their chemical, physical, and optical properties. Therefore, terthiophene derivatives have become an extremely versatile class of compounds both for direct application or for the preparation of electronic functional polymers. Moreover, their biocompatibility and ease of functionalization make them appealing for biology and medical research, as it testifies to the blossoming of studies in these fields in which they are involved. It is thus with the willingness to guide the reader through all the possibilities offered by these structures that this review elucidates the synthetic methods and describes the full chemical variety of terthiophenes and their derivatives. In the final part, an in-depth presentation of their numerous bioapplications intends to provide a complete picture of the state of the art.

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Optical chemosensors for Hg²⁺from terthiophene appended rhodamine derivatives: FRET based molecular and in situ hybrid gold nanoparticle sensors

Cited by 27 publications

References 125 publications

Fluorescent nanoprobes for sensing and imaging of metal ions: Recent advances and future perspectives

Fluorescent nanoprobes for sensing and imaging of metal ions: Recent advances and future perspectives

A pH optical and fluorescent sensor based on rhodamine modified on activated cellulose paper

Thiophene-Based Trimers and Their Bioapplications: An Overview

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Optical chemosensors for Hg2+from terthiophene appended rhodamine derivatives: FRET based molecular and in situ hybrid gold nanoparticle sensors

Cited by 27 publications

References 125 publications

Fluorescent nanoprobes for sensing and imaging of metal ions: Recent advances and future perspectives

Fluorescent nanoprobes for sensing and imaging of metal ions: Recent advances and future perspectives

A pH optical and fluorescent sensor based on rhodamine modified on activated cellulose paper

Thiophene-Based Trimers and Their Bioapplications: An Overview

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Product

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Optical chemosensors for Hg²⁺from terthiophene appended rhodamine derivatives: FRET based molecular and in situ hybrid gold nanoparticle sensors