1
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Ultra-fine nickel sulfide nanoclusters @ nickel sulfide microsphere as enzyme-free electrode materials for sensitive detection of lactic acid. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114465] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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2
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Studies on the visual screening method for fluoroquinolones based on the chain reaction of gold nanoparticles and its application in milk samples. Microchem J 2019. [DOI: 10.1016/j.microc.2019.01.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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3
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Abstract
Illegal adulteration of milk products by melamine and its analogs has become a threat to the world. In 2008, the misuse of melamine with infant formula caused serious effects on babies of China. Thereafter, the government of China and the US Food and Drug Administration (FDA) limited the use of melamine of 1 mg/kg for infant formula and 2.5 mg/kg for other dairy products. Similarly, the World Health Organization (WHO) has also limited the daily intake of melamine of 0.2 mg/kg body weight per day. Many sensory schemes have been proposed by the scientists for carrying out screening on melamine poisoning. Among them, nanomaterial-based sensing techniques are very promising in terms of real-time applicability. These materials uncover and quantify the melamine by means of diverse mechanisms, such as fluorescence resonance energy transfer (FRET), aggregation, inner filter effect, surface-enhanced Raman scattering (SERS), and self-assembly, etc. Nanomaterials used for the melamine determination include carbon dots, quantum dots, nanocomposites, nanocrystals, nanoclusters, nanoparticles, nanorods, nanowires, and nanotubes. In this review, we summarize and comment on the melamine sensing abilities of these nanomaterials for their suitability and future research directions.
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4
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Liu X, Xu N, Gai P, Li F. Triplex DNA formation-mediated strand displacement reaction for highly sensitive fluorescent detection of melamine. Talanta 2018; 185:352-358. [PMID: 29759211 DOI: 10.1016/j.talanta.2018.03.094] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 02/11/2018] [Accepted: 03/29/2018] [Indexed: 12/15/2022]
Abstract
Since melamine is a strong hazard to human health, the development of new methods for highly sensitive detection of melamine is highly desirable. Herein, a novel fluorescent biosensing strategy was designed for sensitive and selective melamine assay based on the recognition ability of abasic (AP) site in triplex towards melamine and signal amplification by Mg2+-dependent DNAzyme. In this strategy, the melamine-induced formation of triplex DNA was employed to trigger the strand displacement reaction (SDR). The SDR process converted the specific target recognition into the release and activation of Mg2+-dependent DNAzyme, which could catalyze the cleavage of fluorophore/quencher labeled DNA substrate (FQ), resulting in a significantly increased fluorescent signal. Under the optimal conditions, the fluorescent signal has a linear relationship with the logarithm of the melamine concentration in a wide range of 0.005-50 μM. The detection limit was estimated to be 0.9 nM (0.1ppb), which is sufficiently sensitive for practical application. Furthermore, this strategy exhibits high selectivity against other potential interfering substances, and the practical application of this strategy for milk samples reveals that the proposed strategy works well for melamine assay in real samples. Therefore, this strategy presents a new method for the sensitive melamine assay and holds great promise for sensing applications in the environment and the food safety field.
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Affiliation(s)
- Xiaojuan Liu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People's Republic of China
| | - Ningning Xu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People's Republic of China
| | - Panpan Gai
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People's Republic of China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People's Republic of China; Key Laboratory of Applied Mycology of Shandong Province, Qingdao Agricultural University, Qingdao, Shandong 266109, People's Republic of China.
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5
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Liu X, Song M, Li F. Triplex DNA-based Bioanalytical Platform for Highly Sensitive Homogeneous Electrochemical Detection of Melamine. Sci Rep 2017; 7:4490. [PMID: 28674450 PMCID: PMC5495805 DOI: 10.1038/s41598-017-04812-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/19/2017] [Indexed: 12/01/2022] Open
Abstract
Melamine detection has attracted much attention since the discovery of the damage of melamine to human health. Herein, we have developed a sensitive homogeneous electroanalytical platform for melamine detection, which is relied on the formation of triplex molecular beacon integrated with exonuclease III (Exo III)-mediated signal amplification. The formation of triplex molecular beacon was triggered by the recognition and incorporation of melamine to the abasic (AP) site contained in the triplex stem. The stem of the triplex molecular beacon was designed to have a protruding double-strand DNA, which can be recognized and hydrolyzed by Exo III for releasing methylene blue (MB)-labeled mononucleotide. These released MB molecules exhibit high diffusivity toward indium tin oxide electrode with negative charge, thus producing a significantly increased electrochemical response. Taking advantages of the high binding affinity of the DNA triplex structure containing AP sites towards melamine and the unique features of Exo III, this sensing platform is capable for sensitive and selective melamine assay with a detection limit as low as 8.7 nM. Furthermore, this strategy shows good applicability for melamine assay in real samples. Therefore, this strategy broadens the application of triplex DNA and presents a new method for sensitive detection of melamine.
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Affiliation(s)
- Xiaojuan Liu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China
| | - Mengmeng Song
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China.
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6
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Liang L, Zhen S, Huang C. Visual and light scattering spectrometric method for the detection of melamine using uracil 5'-triphosphate sodium modified gold nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:99-104. [PMID: 27599194 DOI: 10.1016/j.saa.2016.08.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 08/22/2016] [Accepted: 08/25/2016] [Indexed: 06/06/2023]
Abstract
A highly selective method was presented for colorimetric determination of melamine using uracil 5'-triphosphate sodium modified gold nanoparticles (UTP-Au NPs) in this paper. Specific hydrogen-bonding interaction between uracil base (U) and melamine resulted in the aggregation of AuNPs, displaying variations of localized surface plasmon resonance (LSPR) features such as color change from red to blue and enhanced localized surface plasmon resonance light scattering (LSPR-LS) signals. Accordingly, the concentration of melamine could be quantified based on naked eye or a spectrometric method. This method was simple, inexpensive, environmental friendly and highly selective, which has been successfully used for the detection of melamine in pretreated liquid milk products with high recoveries.
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Affiliation(s)
- Lijiao Liang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; School of Environmental and Chemistry Engineering of Chongqing Three Gorges University, Chongqing 404000, China
| | - Shujun Zhen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Chengzhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; College of Pharmaceutical Science, Southwest University, Chongqing 400715, China.
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7
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León V, Castañeda G, Herrero MA, Vázquez E. Gold nanoparticles as analytical tools for the quantification of small quantities of triazine derivatives anchored on graphene in water dispersions. RSC Adv 2017. [DOI: 10.1039/c7ra02358h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
A fast, simple and sensitive method develops to detect ppm levels of melamine anchored on graphene in aqueous graphene dispersions.
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Affiliation(s)
- Verónica León
- Departamento de Química Orgánica
- Inorgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas-IRICA
- Universidad de Castilla–La Mancha
- 13071 Ciudad Real
| | - Gregorio Castañeda
- Departamento de Química Analítica y Tecnología de Alimentos
- Facultad de Ciencias y Tecnologías Químicas-IRICA
- Universidad de Castilla–La Mancha
- 13071 Ciudad Real
- Spain
| | - María Antonia Herrero
- Departamento de Química Orgánica
- Inorgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas-IRICA
- Universidad de Castilla–La Mancha
- 13071 Ciudad Real
| | - Ester Vázquez
- Departamento de Química Orgánica
- Inorgánica y Bioquímica
- Facultad de Ciencias y Tecnologías Químicas-IRICA
- Universidad de Castilla–La Mancha
- 13071 Ciudad Real
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8
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Dey MK, Reddy AVR, Satpati AK. Determination of Melamine by a Reduced Graphene Oxide–Gold Nanoparticle Composite Carbon Paste Electrode. ANAL LETT 2016. [DOI: 10.1080/00032719.2016.1154065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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9
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Kaleeswaran P, Nandhini T, Pitchumani K. Naked eye sensing of melamine: aggregation induced recognition by sodium d-gluconate stabilised silver nanoparticles. NEW J CHEM 2016. [DOI: 10.1039/c5nj03083h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A simple, cost-effective sodium d-gluconate stabilised Ag NP system was developed and its sensing behavior towards melamine was studied.
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Affiliation(s)
- Palanichamy Kaleeswaran
- Department of Natural Products Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625021
- India
| | - Thanasekaran Nandhini
- Department of Natural Products Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625021
- India
| | - Kasi Pitchumani
- Department of Natural Products Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625021
- India
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10
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Du J, Wang Z, Peng X, Fan J. In Situ Colorimetric Recognition of Melamine Based on Thymine Derivative-Functionalized Gold Nanoparticle. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b02399] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jianjun Du
- State Key
Laboratory of Fine
Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P. R. China
| | - Zhenkuan Wang
- State Key
Laboratory of Fine
Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P. R. China
| | - Xiaojun Peng
- State Key
Laboratory of Fine
Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P. R. China
| | - Jiangli Fan
- State Key
Laboratory of Fine
Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P. R. China
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11
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Zaman MB, Karim MR, Ashrafuzzaman M, Hanifi-Moghaddam P. Biomolecule conjugated nanoparticle synthons for detection of food contaminants. CAN J CHEM 2015. [DOI: 10.1139/cjc-2014-0588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This article investigates recent research on a series of photoluminescent nanoparticles (NPs) and supramolecular chemistry at their surface. This in turn prompts the concept of quantum dots supramolecular synthons (QDSS) and foresees the inevitable path towards biomimetics and bioinspired technology. We highlight the methodology how to create QDSS by functional assembly of photoluminescent semiconductors and the surface binding of supramolecular ligands.
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Affiliation(s)
- Md. Badruz Zaman
- AB Biotech Inc. National Research Council of Canada, Ottawa, ON K1A 0R6, Canada
- Medical Sciences Division, Northern Ontario School of Medicine, Sudbury, ON P3E 2C6, Canada
- Department of Biochemistry, King Saud University, Riyadh 11421, Saudi Arabia
| | - Mohammad Rezaul Karim
- Center of Excellence for Research in Engineering Materials, Advanced Manufacturing Institutes, King Saud University, Riyadh 11421, Saudi Arabia
| | - Md. Ashrafuzzaman
- Department of Biochemistry, King Saud University, Riyadh 11421, Saudi Arabia
| | - Pejman Hanifi-Moghaddam
- Medical Sciences Division, Northern Ontario School of Medicine, Sudbury, ON P3E 2C6, Canada
- School of Environmental Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
- Department of Biology and Biomolecular Sciences Program, Laurentian University, Sudbury, ON P3E 2C6, Canada
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12
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Wang H, Chen D, Yu L, Chang M, Ci L. One-step, room temperature, colorimetric melamine sensing using an in-situ formation of silver nanoparticles through modified Tollens process. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:281-285. [PMID: 25222324 DOI: 10.1016/j.saa.2014.08.041] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 04/12/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
We have developed a rapid, sensitive, one-step, and selective colorimetric detection method for melamine (MEL) in milk powder based upon an in-situ formation of silver nanoparticles (AgNPs) through modified Tollens process at room temperature. The triazine ring N atoms of MEL molecule were strategically designed to complex the Ag(+) through electron donor-acceptor interaction. During the AgNPs formation procedure, the MEL molecule, which has been covalently bonded with the Ag(+) ions, was adsorbed to the surface of as-prepared AgNPs, resulting in the aggregation of the adjacent AgNPs with detectable decreases of absorption signal. The concentration of MEL can be determined with the naked eye or a UV-vis spectrometer at which the yellow-to-brown color change associated with aggregate enhancement takes place. This method enables rapid (less than 30 min) and sensitive (limit of detection, LOD, 10 nM) detection, and it was also able to discriminate MEL from sixteen other milk relevant coexisting compounds. This assay does not utilize organic cosolvents, enzymatic reactions, light-sensitive dye molecules, lengthy protocols, or sophisticated instrumentation thereby overcoming some of the limitations of conventional methods.
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Affiliation(s)
- Huiying Wang
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, People's Republic of China.
| | - Dinglong Chen
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, People's Republic of China; School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China.
| | - Longquan Yu
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, People's Republic of China
| | - Ming Chang
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, People's Republic of China
| | - Lijie Ci
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, People's Republic of China
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13
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Borase HP, Patil CD, Salunkhe RB, Suryawanshi RK, Salunke BK, Patil SV. Biofunctionalized silver nanoparticles as a novel colorimetric probe for melamine detection in raw milk. Biotechnol Appl Biochem 2015; 62:652-62. [PMID: 25322814 DOI: 10.1002/bab.1306] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 10/10/2014] [Indexed: 11/09/2022]
Abstract
Nanoparticles have emerged as a promising analytical tool for monitoring food adulteration and safety. In the present study, silver nanoparticles (AgNPs) were synthesized using leaves' extract of Jatropha gossypifolia. AgNPs revealed a characteristic surface plasmon resonance (SPR) peak at 419 nm and have spherical and grain shape with size range between 18 and 30 nm. A selective and rapid method of melamine detection in raw milk was developed with the use of these biofunctionalized AgNPs. The color change, deviation in SPR spectra, and change in the absorption ratio (A500 /A419 ) of AgNPs occurred after an AgNPs-melamine interaction. The detection limit for melamine up to 2 μM (252 ppb) was attained with this method, which is quite lower than safety level recommendations of regulatory bodies demonstrating sensitivity of the method. Dynamicx light scattering and transmission electron microscopy analyses exhibited an increase in hydrodynamic diameter and size of AgNPs after melamine interaction. Melamine sensing by AgNPs was investigated by different physicochemical and thermal analyses.
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Affiliation(s)
- Hemant P Borase
- School of Life Sciences, North Maharashtra University, Jalgaon, India
| | - Chandrashekhar D Patil
- School of Life Sciences, North Maharashtra University, Jalgaon, India.,JDMVPS Nutan Maratha College, Jalgaon, India
| | - Rahul B Salunkhe
- School of Life Sciences, North Maharashtra University, Jalgaon, India
| | | | | | - Satish V Patil
- School of Life Sciences, North Maharashtra University, Jalgaon, India.,North Maharashtra Microbial Culture Collection Centre (NMCC), North Maharashtra University, Jalgaon, India
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14
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Abstract
Melamine is an emerging contaminant in milk, infant formula and pet food.
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Affiliation(s)
- Ying Li
- Department of Food Quality and Safety
- Jilin University
- Changchun 130062
- China
| | - Jingyue Xu
- Department of Food Quality and Safety
- Jilin University
- Changchun 130062
- China
| | - Chunyan Sun
- Department of Food Quality and Safety
- Jilin University
- Changchun 130062
- China
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15
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Lu Q, Zhao J, Xue S, Yin P, Zhang Y, Yao S. A “turn-on” fluorescent sensor for ultrasensitive detection of melamine based on a new fluorescence probe and AuNPs. Analyst 2015; 140:1155-60. [DOI: 10.1039/c4an01847h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new fluorescence sensor for melamine was fabricated by combining a new fluorescent probe 7-(benzylamino)-9,9-dibutyl-9H-fluorene-2-carbaldehyde and AuNPs. This nanosensor has been applied to the determination of melamine in milk samples with satisfactory results.
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Affiliation(s)
- Qiujun Lu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- PR China
| | - Jiangna Zhao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- PR China
| | - Shanyan Xue
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- PR China
| | - Peng Yin
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- PR China
| | - Youyu Zhang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- PR China
| | - Shouzhuo Yao
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education)
- College of Chemistry and Chemical Engineering
- Hunan Normal University
- Changsha 410081
- PR China
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16
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Du J, Zhu B, Peng X, Chen X. Optical reading of contaminants in aqueous media based on gold nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:3461-3479. [PMID: 24578321 DOI: 10.1002/smll.201303256] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 12/14/2013] [Indexed: 06/03/2023]
Abstract
With increasing trends of global population growth, urbanization, pollution over-exploitation, and climate change, the safe water supply has become a global issue and is threatening our society in terms of sustainable development. Therefore, there is a growing need for a water-monitoring platform with the capability of rapidness, specificity, low-cost, and robustness. This review summarizes the recent developments in the design and application of gold nanoparticles (AuNPs) based optical assays to detect contaminants in aqueous media with a high performance. First, a brief discussion on the correlation between the optical reading strategy and the optical properties of AuNPs is presented. Then, we summarize the principle behind AuNP-based optical assays to detect different contaminants, such as toxic metal ion, anion, and pesticides, according to different optical reading strategies: colorimetry, scattering, and fluorescence. Finally, the comparison of these assays and the outlook of AuNP-based optical detection are discussed.
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Affiliation(s)
- Jianjun Du
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore; State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
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17
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Dai H, Shi Y, Wang Y, Sun Y, Hu J, Ni P, Li Z. Label-free turn-on fluorescent detection of melamine based on the anti-quenching ability of Hg2+ to gold nanoclusters. Biosens Bioelectron 2014; 53:76-81. [DOI: 10.1016/j.bios.2013.09.034] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 09/10/2013] [Accepted: 09/12/2013] [Indexed: 01/24/2023]
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18
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Dey MK, Satpati AK, Reddy AVR. Electrochemical Determination of Melamine on Static Mercury Drop Electrode and on Gold Nano Particle Modified Carbon Paste Electrode. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/ajac.2014.59067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Picomolar melamine enhanced the fluorescence of gold nanoparticles: Spectrofluorimetric determination of melamine in milk and infant formulas using functionalized triazole capped goldnanoparticles. Biosens Bioelectron 2013. [DOI: 10.1016/j.bios.2012.10.023] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Xu Q, Wei HP, Du S, Li HB, Ji ZP, Hu XY. Detection of subnanomolar melamine based on electrochemical accumulation coupled with enzyme colorimetric assay. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:1810-1817. [PMID: 23373873 DOI: 10.1021/jf304034e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Based on the synergetic effect of the electrochemical accumulation process and the signal amplification of enzymes, a new sensitive method has been developed for the detection of subnanomolar melamine. There are two steps involved in the sensor construction process: (1) accumulation of melamine on an electrode by cyclic voltammetric method and (2) chemical coupling of horseradish peroxidase (HRP) with the accumulated melamine through the linkage of glutaraldehyde. The coupled HRP catalyzes the oxidation of guaiacol to generate an amber-colored product. Quantitative analysis of melamine is performed by measuring the absorption intensities of the colored product. Under the optimal conditions, the method showed a wide linearity in the concentration range from 1.0 × 10(-11) to 1.0 × 10(-8) M for melamine detection. Moreover, it has been successfully applied to detect melamine in different infant formula powders and fish feed samples.
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Affiliation(s)
- Qin Xu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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21
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Wen S, Zheng F, Shen M, Shi X. Synthesis of polyethyleneimine-stabilized gold nanoparticles for colorimetric sensing of heparin. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2012.11.052] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Xing H, Zhan S, Wu Y, He L, Zhou P. Sensitive colorimetric detection of melamine in milk with an aptamer-modified nanogold probe. RSC Adv 2013. [DOI: 10.1039/c3ra42138d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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23
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Vilela D, González MC, Escarpa A. Sensing colorimetric approaches based on gold and silver nanoparticles aggregation: Chemical creativity behind the assay. A review. Anal Chim Acta 2012; 751:24-43. [DOI: 10.1016/j.aca.2012.08.043] [Citation(s) in RCA: 393] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Revised: 08/20/2012] [Accepted: 08/25/2012] [Indexed: 10/27/2022]
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24
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Wang GL, Zhu XY, Jiao HJ, Dong YM, Wu XM, Li ZJ. “Oxidative etching-aggregation” of silver nanoparticles by melamine and electron acceptors: An innovative route toward ultrasensitive and versatile functional colorimetric sensors. Anal Chim Acta 2012; 747:92-8. [DOI: 10.1016/j.aca.2012.08.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 08/11/2012] [Accepted: 08/16/2012] [Indexed: 10/28/2022]
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25
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Li J, Kuang D, Feng Y, Zhang F, Xu Z, Liu M. A Novel Electrochemical Method for Sensitive Detection of Melamine in Infant Formula and Milk using Ascorbic Acid as Recognition Element. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.8.2499] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Cederquist KB, Kelley SO. Nanostructured biomolecular detectors: pushing performance at the nanoscale. Curr Opin Chem Biol 2012; 16:415-21. [DOI: 10.1016/j.cbpa.2012.04.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Accepted: 04/15/2012] [Indexed: 10/28/2022]
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27
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Mecker LC, Tyner KM, Kauffman JF, Arzhantsev S, Mans DJ, Gryniewicz-Ruzicka CM. Selective melamine detection in multiple sample matrices with a portable Raman instrument using surface enhanced Raman spectroscopy-active gold nanoparticles. Anal Chim Acta 2012; 733:48-55. [DOI: 10.1016/j.aca.2012.05.001] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 04/12/2012] [Accepted: 05/03/2012] [Indexed: 10/28/2022]
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28
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Zhang† M, Ping† H, Cao X, Li H, Guan F, Sun C, Liu J. Rapid determination of melamine in milk using water-soluble CdTe quantum dots as fluorescence probes. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2011; 29:333-44. [DOI: 10.1080/19440049.2011.643459] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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29
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Ma Y, Niu H, Zhang X, Cai Y. One-step synthesis of silver/dopamine nanoparticles and visual detection of melamine in raw milk. Analyst 2011; 136:4192-6. [DOI: 10.1039/c1an15327g] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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