Novel triadimenol detection assay based on fluorescence resonance energy transfer between gold nanoparticles and cadmium telluride quantum dots

Abstract We developed a highly sensitive fluorescent assay based on fluorescence resonance energy transfer (FRET) between gold nanoparticles (AuNPs) and cadmium telluride (CdTe) quantum dots (QDs) for detection of triadimenol in tap water and agricultural irrigation water. The electrostatic interaction between the positively charged CdTe QDs and negatively charged AuNPs strongly quenched the fluorescence emission of CdTe QDs. In the presence of triadimenol, the strong electrostatic attraction between negatively charged AuNPs and positively charged triadimenol molecules rapidly induced the aggregation of AuNPs, blocking the FRET reaction and attenuating the quenched efficiency of CdTe QDs. The change of fluorescence intensity was linearly related to the concentration of triadimenol in the concentration range of 0.338–33.8 μM. The detection limit (S/N = 3) of the sensor was as low as 0.182 μM. The fluorescent sensor was successfully used to detect triadimenol in spiked water samples and gave good recoveries.

[1]  Jing Wang,et al.  Spectrophotometric and visual detection of the herbicide atrazine by exploiting hydrogen bond-induced aggregation of melamine-modified gold nanoparticles , 2015, Microchimica Acta.

[2]  Xiaogang Peng,et al.  Experimental Determination of the Extinction Coefficient of CdTe, CdSe, and CdS Nanocrystals , 2003 .

[3]  Fengling Song,et al.  Fluorescent Nanosensors Based on Fluorescence Resonance Energy Transfer (FRET) , 2013 .

[4]  T. Nagai,et al.  Nontrivial Effect of the Color-Exchange of a Donor/Acceptor Pair in the Engineering of Förster Resonance Energy Transfer (FRET)-Based Indicators. , 2016, ACS chemical biology.

[5]  Shujia Li,et al.  Non-covalent conjugation of CdTe QDs with lysozyme binding DNA for fluorescent sensing of lysozyme in complex biological sample. , 2014, Talanta.

[6]  Fan Yang,et al.  A dual-mode colorimetric and fluorometric "light on" sensor for thiocyanate based on fluorescent carbon dots and unmodified gold nanoparticles. , 2015, The Analyst.

[7]  Hu Tianyu,et al.  Aptamer-based aggregation assay for mercury(II) using gold nanoparticles and fluorescent CdTe quantum dots , 2016, Microchimica Acta.

[8]  Qin Xu,et al.  Determination of acetamiprid by a colorimetric method based on the aggregation of gold nanoparticles , 2011 .

[9]  Jian Zhu,et al.  Dual-mode melamine detection based on gold nanoparticles aggregation-induced fluorescence “turn-on” and “turn-off” of CdTe quantum dots , 2017 .

[10]  Mengmeng Yan,et al.  Sensitive colorimetric detection of cyromazine in cucumber samples by using label-free gold nanoparticles and polythymine. , 2015, The Analyst.

[11]  H. Narita,et al.  Development of an Immunosensor for Determination of the Fungicide Chlorothalonil in Vegetables, Using Surface Plasmon Resonance. , 2015, Journal of agricultural and food chemistry.

[12]  Xiaoyan Zhang,et al.  Ionic liquid functionalized gold nanoparticles: Synthesis, rapid colorimetric detection of imidacloprid , 2014 .

[13]  D. Djozan,et al.  Extraction and preconcentration technique for triazole pesticides from cow milk using dispersive liquid-liquid microextraction followed by GC-FID and GC-MS determinations. , 2011, Journal of separation science.

[14]  Jing Lyu,et al.  Nanoparticle based fluorescence resonance energy transfer (FRET) for biosensing applications. , 2015, Journal of materials chemistry. B.

[15]  Jing Lyu,et al.  A fluorescence resonance energy transfer (FRET) biosensor based on graphene quantum dots (GQDs) and gold nanoparticles (AuNPs) for the detection of mecA gene sequence of Staphylococcus aureus. , 2015, Biosensors & bioelectronics.

[16]  Jing Wang,et al.  Colorimetric sensing of atrazine in rice samples using cysteamine functionalized gold nanoparticles after solid phase extraction , 2016 .

[17]  E. Figueiredo,et al.  Molecularly imprinted fibers with renewable surface for solid-phase microextraction of triazoles from grape juice samples followed by gas chromatography mass spectrometry analysis. , 2014, The Analyst.

[18]  Guozhen Liu,et al.  A multianalyte electrochemical immunosensor based on patterned carbon nanotubes modified substrates for detection of pesticides. , 2014, Biosensors & bioelectronics.

[19]  M. Barclay,et al.  A Simple High-Performance Liquid Chromatography Method for Simultaneous Determination of Three Triazole Antifungals in Human Plasma , 2012, Antimicrobial Agents and Chemotherapy.

[20]  B. Liu,et al.  Synthesis of positively charged CdTe quantum dots and detection for uric acid. , 2011, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

[21]  Jing Wang,et al.  Competitive fluorescence assay for specific recognition of atrazine by magnetic molecularly imprinted polymer based on Fe3O4-chitosan. , 2016, Carbohydrate polymers.

[22]  Lin Liu,et al.  A graphene oxide-based fluorescent scheme for the determination of the activity of the β-site amyloid precursor protein (BACE1) and its inhibitors , 2015, Microchimica Acta.

[23]  V. Adam,et al.  Quantum dots-fluorescence resonance energy transfer-based nanosensors and their application. , 2015, Biosensors & bioelectronics.

[24]  Chunyan Sun,et al.  Visual detection of organophosphorus pesticides represented by mathamidophos using Au nanoparticles as colorimetric probe. , 2011, Talanta.

[25]  V. Kaever,et al.  Rapid HPLC-MS/MS method for simultaneous quantitation of four routinely administered triazole antifungals in human plasma. , 2012, Clinica chimica acta; international journal of clinical chemistry.

[26]  A. Vlessidis,et al.  Ligand-free gold nanoparticles as colorimetric probes for the non-destructive determination of total dithiocarbamate pesticides after solid phase extraction. , 2014, Talanta.

[27]  Chunyan Sun,et al.  Efficient fluorescence resonance energy transfer between oppositely charged CdTe quantum dots and gold nanoparticles for turn-on fluorescence detection of glyphosate. , 2014, Talanta.