The synthesis of switch-off fluorescent water-stable copper nanocluster Hg2+ sensors via a simple one-pot approach by an in situ metal reduction strategy in the presence of a thiolated polymer ligand template

Bénavidès, J.; Quijada‐Garrido, Isabel; Garcı́a, Olga

doi:10.1039/c9nr08439h

Cited by 47 publications

(22 citation statements)

References 57 publications

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“…successfully self‐assembled Cu NCs inside the multithiolated thermo‐ and pH‐responsive copolymer, p(MEO 2 MA‐ co ‐AcSEMA) [(poly‐2‐(2‐methoxyethoxy) ethyl methacrylate and poly‐2‐(acetylthio)ethyl methacrylate)]. [ 278 ] The one‐pot reduction of copper sulfate (CuSO 4 ·5H 2 O) using hydrazine in the presence of p(MEO 2 MA‐ co ‐AcSEMA) resulted in the formation of greenish‐yellow emitting assembled [Cu@S‐p(MEO 2 MA‐ co ‐AcSEMA) NCs inside the polymer matrix with better photostability and oxidation resistance. The biopolymers (peptides, proteins, lipids, etc.)…”

Section: Molecular Interactions In Nc Self‐assemblymentioning

confidence: 99%

“…demonstrated the selective detection of Hg 2+ using the assembled [Cu@S‐p(MEO 2 MA‐ co ‐AcSEMA)] NCs fabricated inside the multithiolated polymer. [ 278 ] The inherent PL from assembled NCs was quenched selectively in the presence of Hg 2+ . Such chemistry has been further extended for the detection of Hg 2+ present in human urine.…”

Section: Applications Of Assembled Ncsmentioning

confidence: 99%

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Self‐Assembly of Precision Noble Metal Nanoclusters: Hierarchical Structural Complexity, Colloidal Superstructures, and Applications

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Mymoona

Lakshmi

et al. 2021

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Ligand protected noble metal nanoparticles are excellent building blocks for colloidal self‐assembly. Metal nanoparticle self‐assembly offers routes for a wide range of multifunctional nanomaterials with enhanced optoelectronic properties. The emergence of atomically precise monolayer thiol‐protected noble metal nanoclusters has overcome numerous challenges such as uncontrolled aggregation, polydispersity, and directionalities faced in plasmonic nanoparticle self‐assemblies. Because of their well‐defined molecular compositions, enhanced stability, and diverse surface functionalities, nanoclusters offer an excellent platform for developing colloidal superstructures via the self‐assembly driven by surface ligands and metal cores. More importantly, recent reports have also revealed the hierarchical structural complexity of several nanoclusters. In this review, the formulation and periodic self‐assembly of different noble metal nanoclusters are focused upon. Further, self‐assembly induced amplification of physicochemical properties, and their potential applications in molecular recognition, sensing, gas storage, device fabrication, bioimaging, therapeutics, and catalysis are discussed. The topics covered in this review are extensively associated with state‐of‐the‐art achievements in the field of precision noble metal nanoclusters.

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Section: Molecular Interactions In Nc Self‐assemblymentioning

confidence: 99%

Section: Applications Of Assembled Ncsmentioning

confidence: 99%

Self‐Assembly of Precision Noble Metal Nanoclusters: Hierarchical Structural Complexity, Colloidal Superstructures, and Applications

Rival

Mymoona

Lakshmi

et al. 2021

Small

105

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show abstract

“…This sensing platform exhibited good performance in real samples with recovery rate at 101.83–114.00%. In another Hg 2+ sensor, Cu NCs were assembled with polymers with multi-thiol groups as templates (Cu NCs@P-8B) through the simple one-pot approach [ 74 ]. This nanohybrid demonstrated satisfactory water stability, high sensitivity and responsiveness to pH and temperature, with a linear range between 10–100 μM and a limit of detection of 10 μM.…”

Section: Sensing Applications Based On Cu Ncsmentioning

confidence: 99%

Synthesis of Copper Nanocluster and Its Application in Pollutant Analysis

et al. 2021

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Copper nanoclusters (Cu NCs) with their inherent optical and chemical advantages have gained increasing attention as a kind of novel material that possesses great potential, primarily in the use of contaminants sensing and bio-imaging. With a focus on environmental safety, this article comprehensively reviews the recent advances of Cu NCs in the application of various contaminants, including pesticide residues, heavy metal ions, sulfide ions and nitroaromatics. The common preparation methods and sensing mechanisms are summarized. The typical high-quality sensing probes based on Cu NCs towards various target contaminants are presented; additionally, the challenges and future perspectives in the development and application of Cu NCs in monitoring and analyzing environmental pollutants are discussed.

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“…Metal nanoclusters are relatively stable microscopic or submicroscopic aggregates composed of 10 to 100 metal atoms, molecules, or ions through physical or chemical binding forces [ 1 , 2 , 3 , 4 , 5 , 6 ]. Compared with materials of other sizes, metal nanoclusters have been widely studied because of their excellent photostability, strong photoluminescence, good biocompatibility, and unique quantum size effect.…”

Section: Introductionmentioning

confidence: 99%

Highly Luminescent Copper Nanoclusters Stabilized by Ascorbic Acid for the Quantitative Detection of 4-Aminoazobenzene

Li³

et al. 2020

Nanomaterials

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As one of the widely studied metal nanoclusters, the preparation of copper nanoclusters (Cu NCs) by a facile method with high fluorescence performance has been the interest of researchers. In this paper, a simple, green, clean, and time-saving chemical etching method was used to synthesize water-soluble Cu NCs using ascorbic acid (AA) as the reducing agent. The as-prepared Cu NCs showed strong green fluorescence (with a quantum yield as high as 33.6%) and high ion stability, and good antioxidant activity as well. The resultant Cu NCs were used for the detection of 4-aminoazobenzene (one of 24 kinds of prohibited textile compounds) in water with a minimum detection limit of 1.44 μM, which has good potential for fabric safety monitoring.

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The synthesis of switch-off fluorescent water-stable copper nanocluster Hg²⁺ sensors via a simple one-pot approach by an in situ metal reduction strategy in the presence of a thiolated polymer ligand template

Abstract: Highly bright yellow/green, water-stable and smart copper-polymer nanohybrids were synthesized via a one-pot approach through a facile, low-cost and efficient assembly strategy.

Cited by 47 publications

References 57 publications

Self‐Assembly of Precision Noble Metal Nanoclusters: Hierarchical Structural Complexity, Colloidal Superstructures, and Applications

Self‐Assembly of Precision Noble Metal Nanoclusters: Hierarchical Structural Complexity, Colloidal Superstructures, and Applications

Synthesis of Copper Nanocluster and Its Application in Pollutant Analysis

Highly Luminescent Copper Nanoclusters Stabilized by Ascorbic Acid for the Quantitative Detection of 4-Aminoazobenzene

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