A novel dual-function molecularly imprinted polymer on CdTe/ZnS quantum dots for highly selective and sensitive determination of ractopamine

Liu, Huilin; Liu, Dongrui; Fang, Guozhen; Liu, Fangfang; Liu, Cuicui; Yang, Yukun; Wang, Shuo

doi:10.1016/j.aca.2012.11.047

Cited by 72 publications

(27 citation statements)

References 28 publications

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“…Liu et al also reported a novel dual-function material by anchoring a MIP layer on CdTe/ZnS QDs using a sol-gel with surface imprinting [49]. Th e material exhibited highly selective and sensitive determination of ractopamine through spectrofl uorometry and solid-phase extraction coupled with HPLC.…”

Section: Quantum Dotsmentioning

confidence: 99%

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Combination of Molecular Imprinting and Nanotechnology: Beginning of a New Horizon

Madhuri

Roy

Gupta

et al. 2014

Advanced Biomaterials and Biodevices

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Th e molecular imprinting technology provides a distinctive prospect for the creation of three-dimensional cavities, which mimic biological recognition. Over the last decade, substantial eff ort has been devoted from the micro to nanoscale to develop variety of polymeric formats that are compatible with molecular imprinting technology with the aim of emerging a variety of novel synthetic receptors. Th is advancement has off ered considerable advantages, such as greater surfaceto-volume ratio, accessibility to the maximum number of recognition sites, lower diff usion times to facilitate greater uptake and release of the template and overall improved effi ciency. In addition to these, there are also benefi ts related to the distinct diff erences in properties (optical, electrical, mechanical, etc.) demonstrated by nanomaterials when compared with their macroscopic counterparts. In response to this, a new generation of molecularly imprinted synthetic receptors has arisen over the past decade that display physical properties, which are oft en closer to those demonstrated by enzymes and antibodies, such as physical size, solubility, fl exibility and recognition site accessibility. In this chapter, we like to focus on the recent development in the fi eld of craft ing recognition sites on nanostructured materials and/or designing imprinted materials at nanoscale and their consequences for the common mankind.

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Section: Quantum Dotsmentioning

confidence: 99%

“…Th e unmodifi ed GQDs can sensitively detect down to 0.495 ppm (2.2 mM) TNT with the use of only 1mL of GQDs solution. Th e simple FRET-based GQDs reported here exhibit high and stable 21 Schematic illustration showing the preparation of MIP-coated CdTe/ZnS QDs[49].…”

mentioning

confidence: 99%

Combination of Molecular Imprinting and Nanotechnology: Beginning of a New Horizon

Madhuri

Roy

Gupta

et al. 2014

Advanced Biomaterials and Biodevices

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“…Li et al used MIP-embedded CdSe QDs for highly selective and sensitive optosensing of pyrethroids . Recently, we prepared MIPs on the surface of ionic liquid-modified CdSe/ZnS QDs (Liu et al, 2012), MIP sensors based on QDs and graphene (Liu et al, 2013a), and a dual-function QDs@MIP sensor for highly selective and sensitive detection of ractopamine (Liu et al, 2013b). All of these are QDs embedded in MIPs, which may decrease the QDs fluorescence intensity.…”

Section: Introductionmentioning

confidence: 99%

A novel quantum dots-labeled on the surface of molecularly imprinted polymer for turn-off optosensing of dicyandiamide in dairy products

Liu

Zhou

et al. 2016

Biosensors and Bioelectronics

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“…However, molecular imprinted polymers (MIPs) possess several advantages over their biological counterparts including low cost, ease of preparation and good physical and chemical stability over a wide range of experimental conditions. Polymers prepared with this technique, have been utilised as materials of molecular recognition in many scientific and technical fields such as stationary phases for chromatography [1,2], spectrofluorometry [3,4], electrochemistry [5][6][7], sensors [8][9], solid-phase extraction (SPE) [10][11][12][13][14][15][16], membrane separation [17] drug releases and catalysts [18,19]. The common methods for preparing MIPs which are suitable for SPE include bulk polymerisation, precipitation polymerisation and suspension polymerisation.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous preconcentration and determination of malachite green and fuchsine dyes in seafood and environmental water samples using nano-alumina-based molecular imprinted polymer solid-phase extraction

Mirzajani

Bagheban

2016

International Journal of Environmental Analytical Chemistry

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Molecular imprinted polymer for determination of malachite green (MG) and fuchsine basic (FU) dyes by spectrophotometry has been used, to develop a novel simultaneous extraction and preconcentration method. Molecularly imprinted layer-coated nano-alumina (MIP@Nano-Al 2 O 3 ) as adsorbent was prepared by surface molecular imprinting technique, and characterised by FTIR spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis (EDAX) and thermogravimetric analysis (TGA). The method is based on simultaneous extraction of MG and FU dyes from aqueous solution by using molecularly imprinted polymer and measuring the absorbance at 617 and 546 nm for MG and FU, respectively. Parameters which affect the extraction efficiency such as pH, volume of eluent and amount of adsorbent were investigated and optimised. Linear calibration curves were obtained in the range of 2-750 ng mL −1 for MG and 1-240 ng mL −1 for FU under optimum conditions. Detection limit based on three times the standard deviation of the blank (3S b ) was 0.655 and 0.245 ng mL −1 (n = 10) for MG and FU, respectively. The relative standard deviation (RSD) for 100 ng mL −1 of MG and FU was 2.35 and 3.06% (n = 7), respectively. The method was applied to the simultaneous determination of the dyes in different seafood and environmental water samples. ARTICLE HISTORY

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A novel dual-function molecularly imprinted polymer on CdTe/ZnS quantum dots for highly selective and sensitive determination of ractopamine

Cited by 72 publications

References 28 publications

Combination of Molecular Imprinting and Nanotechnology: Beginning of a New Horizon

Combination of Molecular Imprinting and Nanotechnology: Beginning of a New Horizon

A novel quantum dots-labeled on the surface of molecularly imprinted polymer for turn-off optosensing of dicyandiamide in dairy products

Simultaneous preconcentration and determination of malachite green and fuchsine dyes in seafood and environmental water samples using nano-alumina-based molecular imprinted polymer solid-phase extraction

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