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Celesti C, Giofrè SV, Espro C, Legnani L, Neri G, Iannazzo D. Modified Gold Screen-Printed Electrodes for the Determination of Heavy Metals. SENSORS (BASEL, SWITZERLAND) 2024; 24:4935. [PMID: 39123983 PMCID: PMC11314839 DOI: 10.3390/s24154935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 07/28/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024]
Abstract
Screen-printed electrodes (SPEs) are reliable, portable, affordable, and versatile electrochemical platforms for the real-time analytical monitoring of emerging analytes in the environmental, clinical, and agricultural fields. The aim of this study was to evaluate the electrochemical behavior of gold screen-printed electrodes (SPGEs) modified with molecules containing amino (Tr-N) or α-aminophosphonate (Tr-P) groups for the selective and sensitive detection of the toxic metal ions Pb2+ and Hg2+ in aqueous samples. After optimizing the analytical parameters (conditioning potential and time, deposition potential and time, pH and concentration of the supporting electrolyte), anodic square wave stripping voltammetry (SWASV) was used to evaluate and compare the electrochemical performance of bare or modified electrodes for the detection of Hg2+ and Pb2+, either alone or in their mixtures in the concentration range between 1 nM and 10 nM. A significative improvement in the detection ability of Pb2+ ions was recorded for the amino-functionalized gold sensor SPGE-N, while the presence of a phosphonate moiety in SPGE-P led to greater sensitivity towards Hg2+ ions. The developed sensors allow the detection of Pb2+ and Hg2+ with a limit of detection (LOD) of 0.41 nM and 35 pM, respectively, below the legal limits for these heavy metal ions in drinking water or food, while the sensitivity was 5.84 µA nM-1cm-2 and 10 µA nM-1cm-2, respectively, for Pb2+ and Hg2+. The reported results are promising for the development of advanced devices for the in situ and cost-effective monitoring of heavy metals, even in trace amounts, in water resources.
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Affiliation(s)
- Consuelo Celesti
- Department of Engineering, University of Messina, Contrada Di Dio, 98166 Messina, Italy; (C.E.); (G.N.); (D.I.)
| | - Salvatore Vincenzo Giofrè
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres 31, 98166 Messina, Italy
| | - Claudia Espro
- Department of Engineering, University of Messina, Contrada Di Dio, 98166 Messina, Italy; (C.E.); (G.N.); (D.I.)
| | - Laura Legnani
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Piazza della Scienza 2, 20126 Milano, Italy;
| | - Giovanni Neri
- Department of Engineering, University of Messina, Contrada Di Dio, 98166 Messina, Italy; (C.E.); (G.N.); (D.I.)
| | - Daniela Iannazzo
- Department of Engineering, University of Messina, Contrada Di Dio, 98166 Messina, Italy; (C.E.); (G.N.); (D.I.)
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2
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Aihaiti A, Wang J, Zhang W, Shen M, Meng F, Li Z, Zhang Y, Ren M, Zhang M. Recent advances and trends in innovative biosensor-based devices for heavy metal ion detection in food. Compr Rev Food Sci Food Saf 2024; 23:e13358. [PMID: 38923121 DOI: 10.1111/1541-4337.13358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 06/28/2024]
Abstract
Low-cost, reliable, and efficient biosensors are crucial in detecting residual heavy metal ions (HMIs) in food products. At present, based on distance-induced localized surface plasmon resonance of noble metal nanoparticles, enzyme-mimetic reaction of nanozymes, and chelation reaction of metal chelators, the constructed optical sensors have attracted wide attention in HMIs detection. Besides, based on the enrichment and signal amplification strategy of nanomaterials on HMIs and the construction of electrochemical aptamer sensing platforms, the developed electrochemical biosensors have overcome the plague of low sensitivity, poor selectivity, and the inability of multiplexed detection in the optical strategy. Moreover, along with an in-depth discussion of these different types of biosensors, a detailed overview of the design and application of innovative devices based on these sensing principles was provided, including microfluidic systems, hydrogel-based platforms, and test strip technologies. Finally, the challenges that hinder commercial application have also been mentioned. Overall, this review aims to establish a theoretical foundation for developing accurate and reliable sensing technologies and devices for HMIs, thereby promoting the widespread application of biosensors in the detection of HMIs in food.
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Affiliation(s)
- Aihemaitijiang Aihaiti
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Ürümqi, China
| | - Jingkang Wang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Ürümqi, China
| | - Wenrui Zhang
- School of Chemistry, Dalian University of Technology, Dalian, Liaoning, China
| | - Mingping Shen
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Ürümqi, China
| | - Fanxing Meng
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Ürümqi, China
| | - Zongda Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Ürümqi, China
| | - Yukun Zhang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Ürümqi, China
| | - Mengyao Ren
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Ürümqi, China
| | - Minwei Zhang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science & Technology, Xinjiang University, Ürümqi, China
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3
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Pizzoferrato R, Bisauriya R, Antonaroli S, Cabibbo M, Moro AJ. Colorimetric and Fluorescent Sensing of Copper Ions in Water through o-Phenylenediamine-Derived Carbon Dots. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23063029. [PMID: 36991739 PMCID: PMC10056730 DOI: 10.3390/s23063029] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 02/27/2023] [Accepted: 03/07/2023] [Indexed: 06/12/2023]
Abstract
Fluorescent nitrogen and sulfur co-doped carbon dots (NSCDs) were synthesized using a simple one-step hydrothermal method starting from o-phenylenediamine (OPD) and ammonium sulfide. The prepared NSCDs presented a selective dual optical response to Cu(II) in water through the arising of an absorption band at 660 nm and simultaneous fluorescence enhancement at 564 nm. The first effect was attributed to formation of cuprammonium complexes through coordination with amino functional groups of NSCDs. Alternatively, fluorescence enhancement can be explained by the oxidation of residual OPD bound to NSCDs. Both absorbance and fluorescence showed a linear increase with an increase of Cu(II) concentration in the range 1-100 µM, with the lowest detection limit of 100 nM and 1 µM, respectively. NSCDs were successfully incorporated in a hydrogel agarose matrix for easier handling and application to sensing. The formation of cuprammonium complexes was strongly hampered in an agarose matrix while oxidation of OPD was still effective. As a result, color variations could be perceived both under white light and UV light for concentrations as low as 10 µM. Since these color changes were similarly perceived in tap and lake water samples, the present method could be a promising candidate for simple, cost-effective visual monitoring of copper onsite.
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Affiliation(s)
- Roberto Pizzoferrato
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy;
| | - Ramanand Bisauriya
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy;
| | - Simonetta Antonaroli
- Department of Chemical Sciences and Technology, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Marcello Cabibbo
- Department of Industrial Engineering and Mathematical Sciences (DIISM), Università Politecnica Delle Marche, 60131 Ancona, Italy
| | - Artur J. Moro
- LAQV-REQUIMTE, Departamento de Química, CQFB, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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4
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Analyte-triggered in situ “off–on” of Tyndall effect for smartphone-based quantitative nanosensing of Ag+ ions. Photochem Photobiol Sci 2022; 22:631-640. [PMID: 36436206 DOI: 10.1007/s43630-022-00341-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 11/07/2022] [Indexed: 11/29/2022]
Abstract
This work describes two new colorimetric methods for smartphone-based point-of-care nanosensing of toxic Ag+ ions. They were based on the analyte-triggered in situ "off-on" of Tyndall effect (TE) of non-plasmonic colloid or plasmonic metal nanoprobes. The first TE-inspired assay (TEA) focused on the initial analytical application of precipitation reactions where a non-plasmonic AgCl colloid could be formed once mixing the analyte with a NaCl solution. Such AgCl colloid displayed strong visual TE signals after their irradiation by a laser pointer pen, which unexpectedly achieved a detection limit of ~ 400 nM. The second TEA was further designed to reduce the limit down to ~ 78 nM using the analyte's oxidizability towards 3,3',5,5'-tetramethylbenzidine molecules. The redox reaction could create positively charged products that could make negatively charged plasmonic gold nanoparticles aggregate through electrostatic interactions to remarkably amplify their TE responses. Both limits were lower than the minimum allowable Ag+ level (~ 460 nM) in drinking water issued by the World Health Organization. The satisfactory recovery results for detecting Ag+ ions in river, pond, tap, and drinking water additionally demonstrated good selectivity, accuracy and practicality of the proposed methods for potential point-of-need uses in environmental analysis, public health, water safety, etc.
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5
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Polymer-assisted Au@PDA nanoparticles lyophilized powder with high stability and low adsorption and its application in colorimetric biosensing. Anal Chim Acta 2022; 1220:339995. [DOI: 10.1016/j.aca.2022.339995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/27/2022] [Accepted: 05/24/2022] [Indexed: 11/19/2022]
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Silver nanoparticle decorated γ-cyclodextrin with 1,5-dihydroxy naphthalene inclusion complex; as a sensitive fluorescence probe for dual metal ion sensing employing spectrum techniques. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Liang X, Du X, Liu A, Cai Z, Li J, Zhang M, Wang Q, Zeng J. Au/Ag2S dimeric nanostructures for highly specific plasmonic sensing of mercury(II). CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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8
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Sabzehmeidani MM, Kazemzad M. Quantum dots based sensitive nanosensors for detection of antibiotics in natural products: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 810:151997. [PMID: 34848263 DOI: 10.1016/j.scitotenv.2021.151997] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/09/2021] [Accepted: 11/23/2021] [Indexed: 05/18/2023]
Abstract
Residual antibiotics in food products originated from administration of the antibiotics to animals may be accumulated through food metabolism in the human body and endanger safety and health. Thus, developing a prompt and accurate way for detection of antibiotics is a crucial issue. The zero-dimensional fluorescent probes including metals based, carbon and graphene quantum dots (QDs), are highly sensitive materials to use for the detection of a wide range of antibiotics in natural products. These QDs demonstrate unique optical properties like tunable photoluminescence (PL) and excitation-wavelength dependent emission. This study investigates the trends related to carbon and metal based QDs preparation and modification, and their diverse detection application. We discuss the performance of QDs based sensors application in various detection systems such as photoluminescence, photoelectrochemical, chemiluminescence, electrochemiluminescence, colorimetric, as well as describing their working principles in several samples. The detecting mechanism of a QDs-based sensor is dependent on its properties and specific interactions with particular antibiotics. This review also tries to describe environmental application and future perspective of QDs for antibiotics detection.
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Affiliation(s)
| | - Mahmood Kazemzad
- Department of Energy, Materials and Energy Research Center, Tehran 14155-477, Iran.
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9
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Sun Y, Yuan K, Mo X, Chen X, Deng Y, Liu C, Yuan Y, Nie J, Zhang Y. Tyndall-Effect-inspired assay with gold nanoparticles for the colorimetric discrimination and quantification of mercury ions and glutathione. Talanta 2022; 238:122999. [PMID: 34857332 DOI: 10.1016/j.talanta.2021.122999] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 11/15/2022]
Abstract
This work initially reports a new nanosening method for simple, sensitive, specific, visual detection of mercury (II) (Hg2+) and glutathione (GSH) using the Tyndall Effect (TE) of the same colloidal gold nanoparticle (GNP) probes for efficient colorimetric signaling amplification. For the TE-inspired assay (TEA) method, arginine (Arg) molecules are pre-modified on the GNPs' surfaces (Arg-GNPs). Upon the Hg2+ introduction, it can be specifically coordinated with the terminal -NH2 and -COOH groups of the Arg molecules to make the Arg-GNPs aggregate, producing a significantly-enhanced TE signal in the reaction solution after its irradiation by a 635-nm red laser pointer pen. On the other hand, the introduction of the GSH results in the production of the original Arg-GNPs' weak TE response, as it is able to bind such metal ion via mercury-thiol reactions to inhibit the above aggregation. Under the optimal conditions, the utility of the new TEA method is well demonstrated to quantitatively detect the Hg2+ and GSH with the aid of a smartphone as a portable TE reader during the linear concentration ranges of 50-3000 and 10-3000 nM, respectively. The detection limits for the Hg2+ and GSH are estimated to be as low as ∼3.5 and ∼0.3 nM, respectively. The recovery results obtained from the detection of Hg2+ in the complex tap and pond water samples and the assay of GSH in real human serum and urine samples are also satisfactory.
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Affiliation(s)
- Yao Sun
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Kaijing Yuan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Xiaomei Mo
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Xuejiang Chen
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Yanan Deng
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Chang Liu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Yali Yuan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China
| | - Jinfang Nie
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China.
| | - Yun Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin, 541004, PR China.
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10
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Yuan K, Sun Y, Liang F, Pan F, Hu M, Hua F, Yuan Y, Nie J, Zhang Y. Tyndall-effect-based colorimetric assay with colloidal silver nanoparticles for quantitative point-of-care detection of creatinine using a laser pointer pen and a smartphone. RSC Adv 2022; 12:23379-23386. [PMID: 36090387 PMCID: PMC9382227 DOI: 10.1039/d2ra03598g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 08/01/2022] [Indexed: 11/21/2022] Open
Abstract
Herein, this paper initially reports a new colorimetric Tyndall effect-inspired assay (TEA) for simple, low-cost, sensitive, specific, and point-of-care detection of creatinine (an important small biomolecule) by making use of silver nanoparticles (AgNPs) as model colloidal nanoprobes for visual light scattering signaling. The naked-eye TEA method adopts negatively-charged citrate-capped AgNPs (Cit-AgNPs) prepared by sodium citrate reduction. In the presence of alkaline conditions, the creatinine analyte can form carbanion/oxoanion amino tautomers which in turn crosslink with carboxylate groups on the Cit-AgNPs via a hydrogen bonding network to mediate the aggregation of such colloidal nanoprobes showing a significantly-enhanced TE signal that was created and quantified by a hand-held laser pointer pen and a smartphone, respectively. The results demonstrate that the resulting equipment-free method with the TE readout could enable the portable quantification of creatinine with a detection limit of ∼55 nM, which was ∼90–2334 times lower than that obtained from AgNP-based colorimetric approaches with the most common localized surface plasma resonance signaling. Moreover, it shows a larger analytical sensitivity up to ∼580.8227 signal per nM, offering ∼2.4–232-fold improvement in comparison with many of the recent instrumental creatinine nanosensors. The accuracy and practicality of the developed nanosensing system was additionally confirmed with satisfactory recovery results ranging from ca. 98.52 to 100.36% when analyzing a set of real complex human urine samples. This work describes a new nanosensor for one-step ultrasensitive naked-eye detection of creatinine based on the target-triggered aggregation of silver nanoparticles showing dramatically enhanced Tyndall effect.![]()
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Affiliation(s)
- Kaijing Yuan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, P. R. China
| | - Yao Sun
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, P. R. China
| | - Fenchun Liang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, P. R. China
| | - Fenglan Pan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, P. R. China
| | - Miao Hu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, P. R. China
| | - Fei Hua
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, P. R. China
| | - Yali Yuan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, P. R. China
| | - Jinfang Nie
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, P. R. China
| | - Yun Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, P. R. China
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11
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Sun QZ, Zhao B, Chai LY, Liu H, Jin HZ, Liu H. A 3D nickel(II) coordination polymer constructed by mixed- ligand strategy: synthesis, crystal structure and sensing of Hg(II) ion. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1952239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Qiao-Zhen Sun
- School of Materials Science and Engineering, Central South University, Changsha, China
| | - Bo Zhao
- School of Materials Science and Engineering, Central South University, Changsha, China
| | - Li-Yuan Chai
- Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution (CNERC-CTHMP), School of Metallurgy and Environment, Central South University, Changsha, China
| | - Hao Liu
- School of Materials Science and Engineering, Central South University, Changsha, China
| | - Hao-Zhe Jin
- School of Materials Science and Engineering, Central South University, Changsha, China
| | - Hui Liu
- Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution (CNERC-CTHMP), School of Metallurgy and Environment, Central South University, Changsha, China
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12
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Ding Q, Li C, Wang H, Xu C, Kuang H. Electrochemical detection of heavy metal ions in water. Chem Commun (Camb) 2021; 57:7215-7231. [PMID: 34223844 DOI: 10.1039/d1cc00983d] [Citation(s) in RCA: 103] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Heavy metal ions are one of the main sources of water pollution. Most heavy metal ions are carcinogens that pose a threat to both ecological balance and human health. With the increasing demand for heavy metal detection, electrochemical detection is favorable due to its high sensitivity and efficiency. Here, after discussing the pollution sources and toxicities of Hg(ii), Cd(ii), As(iii), Pb(ii), UO2(ii), Tl(i), Cr(vi), Ag(i), and Cu(ii), we review a variety of recent electrochemical methods for detecting heavy metal ions. Compared with traditional methods, electrochemical methods are portable, fast, and cost-effective, and they can be adapted to various on-site inspection sites. Our review shows that the electrochemical detection of heavy metal ions is a very promising strategy that has attracted widespread attention and can be applied in agriculture, life science, clinical diagnosis, and analysis.
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Affiliation(s)
- Qi Ding
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
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Yin M, Wan Y, Li S, Zhao X, Zhang W, Zhang Y, Wang H. Carbon nitride-doped melamine-silver adsorbents with peroxidase-like catalysis and visible-light photocatalysis: Colorimetric detection and detoxification removal of total mercury. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124978. [PMID: 33385729 DOI: 10.1016/j.jhazmat.2020.124978] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/04/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
Mesoporous melamine-silver (MA-Ag) nanocomposites doped with carbon nitride quantum dots (CNQDs) were fabricated simply by the controlled supramolecular self-assembly. It was discovered that the resulting nanoflower-like CNQDs@MA-Ag nanocomposites could exhibit the peroxidase-like catalysis, which could be specifically enhanced by Hg2+ by forming Ag@Hg alloys. A double catalysis-based colorimetric method was thereby developed for the fast detecting of Hg2+ and Hg0 in wastewater samples, with the levels down to 0.050 nM and 18.3 nM, respectively. Moreover, strong visible-light-driven photocatalysis of the nanocomposites was demonstrated for oxidizing Hg0 into Hg2+ through photocatalytic H2O2 production so as to realize the detoxification of Hg0 in the environmental wastewater. Besides, the fabricated mesoporous CNQDs@MA-Ag nanocomposites with large specific surface areas might facilitate the high Hg adsorption through the powerful MA-Hg chelate interaction, showing the efficient adsorption and/or removal of total Hg. The catalysis-selective colorimetric analysis and photocatalysis-based detoxification removal of total mercury may promise for wide applications in the environmental monitoring and wastewater treatment of toxic heavy metals of mercury.
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Affiliation(s)
- Mengyuan Yin
- Rizhao Key Laboratory of Marine Medicine and Materials Application Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, PR China
| | - Yuqi Wan
- Rizhao Key Laboratory of Marine Medicine and Materials Application Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, PR China
| | - Shuai Li
- Rizhao Key Laboratory of Marine Medicine and Materials Application Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, PR China
| | - Xiaoting Zhao
- Rizhao Key Laboratory of Marine Medicine and Materials Application Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, PR China
| | - Wenwen Zhang
- Rizhao Key Laboratory of Marine Medicine and Materials Application Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, PR China
| | - Yun Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, Guilin University of Technology, Guilin, 541004 Guangxi, PR China
| | - Hua Wang
- School of Life Sciences, Huzhou University, Huzhou, 313000 Zhejiang, PR China; Rizhao Key Laboratory of Marine Medicine and Materials Application Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, PR China.
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14
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Deng Z, Jin W, Yin Q, Huang J, Huang Z, Fu H, Yuan Y, Zou J, Nie J, Zhang Y. Ultrasensitive visual detection of Hg2+ ions via the Tyndall effect of gold nanoparticles. Chem Commun (Camb) 2021; 57:2613-2616. [DOI: 10.1039/d0cc08003a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This work describes a new nanosensor for one-step ultrasensitive naked-eye detection of Hg2+ ions based on the target-triggered aggregation of gold nanoparticles showing a dramatically enhanced Tyndall effect.
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15
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Li S, Liu H, Zhang X, Cai J, Huang K, Chen B, Huang L, Lin Z, Lin X, Yao H. Label-free colorimetric detection of glutathione by autocatalytic oxidation of o-phenylenediamine based on Au 3+ regulation and its application. NEW J CHEM 2021. [DOI: 10.1039/d1nj00370d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A label-free, rapid, and highly sensitive colorimetric assay for the detection of glutathione (GSH) was developed.
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16
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Chen X, Sun Y, Mo X, Gao Q, Deng Y, Hu M, Zou J, Nie J, Zhang Y. On-site, rapid and visual method for nanomolar Hg 2+ detection based on the thymine–Hg 2+–thymine triggered “double” aggregation of Au nanoparticles enhancing the Tyndall effect. RSC Adv 2021; 11:36859-36865. [PMID: 35494369 PMCID: PMC9043572 DOI: 10.1039/d1ra07211k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/08/2021] [Indexed: 01/07/2023] Open
Abstract
This work describes a new nanosensor for the simple, rapid, portable, colorimetric analysis of mercury(ii) (Hg2+) ions by combining the sensitive Tyndall effect (TE) of colloidal Au nanoparticles (AuNPs) with specific thymine–Hg2+–thymine (T–Hg2+–T) coordination chemistry for the first time. For the TE-inspired assay (TEA), in the presence of Hg2+ in a sample, the analyte can selectively mediate the hybridization of three types of flexible single-stranded DNAs (ssDNAs) to form stable rigid double-stranded DNAs (dsDNAs) via the T–Hg2+–T ligand interaction. Subsequent self-assembly of the dsDNAs with terminal thiol groups on the AuNPs' surfaces led to their “double” aggregation in addition to the lack of sufficient ssDNAs as the stabilizing molecules in a high-salt solution, resulting in a remarkably enhanced TE signal that positively relied on the Hg2+ level. The results demonstrated that such a TEA method enabled rapid naked-eye qualitative analysis of 625 nM Hg2+ within 10 min with an inexpensive laser pointer pen as an inexpensive handheld light source to generate the TE response. Making use of a smartphone for portable TE readout could further quantitatively detect the Hg2+ ions in a linear concentration range from 156 to 2500 nM with a limit of detection as low as 25 nM. Moreover, the developed equipment-free nanosensor was also used to analyze the Hg2+ ions in real samples including tap water, drinking water, and pond water, the obtained recoveries were within the range of 93.68 to 108.71%. To the best of our knowledge, this is the first report of using the AuNPs and functional nucleic acids to design a TE-based biosensor for the analysis of highly toxic heavy metal ions. A new equipment-free colorimetric nanosensor was initially developed for quantitative point-of-need detection of nanomolar Hg2+ ions based on the enhancement in Tyndall effect of Au nanoparticles via their target-triggered “double” aggregation.![]()
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Affiliation(s)
- Xuejiang Chen
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Yao Sun
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Xiaomei Mo
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Qian Gao
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Yanan Deng
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Miao Hu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Jianmei Zou
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Jinfang Nie
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
| | - Yun Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, P. R. China
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17
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Cai Y, Wang F, Hua Y, Liu H, Yin M, Zhang C, Zhang Y, Wang H. A fluorimetric testing strip for the visual evaluation of mercury in blood using copper nanoclusters with DMSO-enhanced fluorescence and stability. NANOSCALE 2020; 12:24079-24084. [PMID: 33241820 DOI: 10.1039/d0nr06896a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A fluorimetric analytical method using test strips has been fabricated for detecting Hg2+ ions in blood by using copper nanoclusters (Cu NCs) prepared via a biomineralization route. Unexpectedly, the as-prepared Cu NCs displayed greatly amplified red fluorescence once dispersed in DMSO, the intensity of which decreased specifically in the presence of Hg2+. Moreover, the resultant Cu NCs were deposited onto test strips to be further fast dried on superhydrophobic substrates in vacuum. The test strip-based fluorimetry can allow for the direct analysis of Hg2+ in blood in the linear concentration range of 0.10-1000 nM. Importantly, this solvent-enhanced fluorescence protocol for different metal probes such as Cu NCs promises extensive analysis applications for designing numerous fluorimetric platforms such as test strips.
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Affiliation(s)
- Yuanyuan Cai
- Rizhao Key laboratory of Marine Medicine and Materials Application Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China.
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18
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Zhao X, Li S, Yu X, Gang R, Wang H. In situ growth of CeO 2 on g-C 3N 4 nanosheets toward a spherical g-C 3N 4/CeO 2 nanozyme with enhanced peroxidase-like catalysis: a selective colorimetric analysis strategy for mercury(II ). NANOSCALE 2020; 12:21440-21446. [PMID: 33079127 DOI: 10.1039/d0nr05315e] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cerium dioxide (CeO2) nanocatalysts were initially grown in situ on 2D graphitic carbon nitride (g-C3N4) nanosheets to yield the nanocomposites g-C3N4/CeO2 with a spherical structure for the catalysis-based colorimetric analysis of Hg2+ ions in blood and wastewater. As the synergetic introduction of g-C3N4 nanosheets might promote the electron transfer in CeO2, the resulting g-C3N4/CeO2 nanozyme was found to present greatly enhanced catalytic activity, as demonstrated by the steady-state kinetic studies, which is nearly 4-fold higher than that of pure CeO2. Moreover, the g-C3N4/CeO2 nanozymes would aggregate in the presence of Hg2+ ions due to the strong interaction between Hg2+ and the nitrogen of g-C3N4, leading to a decrease of catalysis rationally depending on the Hg2+ ion concentration. A colorimetric analysis strategy is therefore developed for the selective detection of Hg2+ ions separately in the complex samples of blood and wastewater, showing a linear concentration range from 0.50 nM to 800 nM with the LOD of 0.23 nM as exemplified for Hg2+ ions in blood. Also, the recovery tests indicated that the developed colorimetric method can allow for the accurate analysis of Hg2+ ions in wastewater and blood. Such a route for the fabrication of composite nanozymes by growing catalytic nanomaterials on conductive 2D substrates may be extended to the design of other kinds of nanozymes with enhanced catalytic performances for developing catalysis-based detection platforms.
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Affiliation(s)
- Xiaoting Zhao
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China.
| | - Shuai Li
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China.
| | - Xiaoxue Yu
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China.
| | - Ruotong Gang
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China.
| | - Hua Wang
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China.
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19
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Ye Q, Ren S, Huang H, Duan G, Liu K, Liu JB. Fluorescent and Colorimetric Sensors Based on the Oxidation of o-Phenylenediamine. ACS OMEGA 2020; 5:20698-20706. [PMID: 32875203 PMCID: PMC7450508 DOI: 10.1021/acsomega.0c03111] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 07/27/2020] [Indexed: 05/04/2023]
Abstract
o-Phenylenediamine (OPD) can be readily oxidized by several types of oxidants to generate fluorescent 2,3-diaminophenazine (oxidized OPD, OPDox). The unique fluorescence response process during the oxidation of OPD provides an important model for the design of novel sensors. In recent years, a series of fluorescent and colorimetric sensors have been developed based on the oxidation of OPD. In this review, fluorescent and colorimetric sensors for the detection of metal ions and small organic molecules are discussed. These sensing processes exhibit distinguishable and prominent fluorescent and colorimetric responses. The sensing systems include autocatalytic reactions and using nanomaterials, carbon dots, or fluorophore labeled DNA as reference fluorophore for fluorescent and colorimetric detection.
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Affiliation(s)
- Qiuxiang Ye
- Faculty
of Materials Metallurgy and Chemistry, Jiangxi
University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, China
| | - Shangfeng Ren
- Faculty
of Materials Metallurgy and Chemistry, Jiangxi
University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, China
| | - Hui Huang
- Faculty
of Materials Metallurgy and Chemistry, Jiangxi
University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, China
| | - Gaigai Duan
- Co-Innovation
Center of Efficient Processing and Utilization of Forest Resources,
College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210000, China
| | - Kunming Liu
- Faculty
of Materials Metallurgy and Chemistry, Jiangxi
University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, China
- (Kunming
Liu)
| | - Jin-Biao Liu
- Faculty
of Materials Metallurgy and Chemistry, Jiangxi
University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, China
- (Jin-Biao Liu)
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20
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Hu R, Zhang X, Chi KN, Yang T, Yang YH. Bifunctional MOFs-Based Ratiometric Electrochemical Sensor for Multiplex Heavy Metal Ions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:30770-30778. [PMID: 32497422 DOI: 10.1021/acsami.0c06291] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this study, a ratiometric electrochemical sensor based on metal-organic frameworks (MOFs) was developed for sensing of multiplex metal ions. The bifunctional MOFs were prepared in a way to integrate two signal tags and a detection probe. In the presence of target metal ions, the target metal ions can replace the framework metal-ion center in the original MOFs through an ion-exchange reaction, leading to ratiometric electrochemical signals under different applied potentials. One consisted of the Cu2+ signal generated from electroactive MOFs selected as internal reference signals. The other consisted of the signal induced by other target metal ions. Using the Imetal ions/ICu2+ signal as the output, the prepared ratiometric probe was able to eliminate disturbance caused by the sensing environment. Moreover, the large surface area and abundant active sites in MOFs produced a multiplex ratiometric electrochemical sensor with improved characteristics in terms of reproducibility, stability, and sensitivity. The sensor was also simple without sophisticated instrumentation, amplification processes, or an acid dissolution/preconcentration procedure, hence promising for practical applications.
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Affiliation(s)
- Rong Hu
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, Yunnan 650500, People's Republic of China
| | - Xi Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, Yunnan 650500, People's Republic of China
| | - Kuan-Neng Chi
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, Yunnan 650500, People's Republic of China
| | - Tong Yang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, Yunnan 650500, People's Republic of China
| | - Yun-Hui Yang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, Yunnan 650500, People's Republic of China
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21
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Liang J, Li H, Wang J, Yu H, He Y. Cascade Chromogenic System with Exponential Signal Amplification for Visual Colorimetric Detection of Acetone. Anal Chem 2020; 92:6548-6554. [PMID: 32285660 DOI: 10.1021/acs.analchem.0c00149] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The signal of the traditional chromogenic systems is directly proportional to analyte concentration, leading to an unsatisfactory sensitivity. Herein, we report a cascade chromogenic system to realize exponential amplification of colorimetric signal through coupling chemical oxidation with photoinduced radical chain reaction. The chemical oxidation of o-phenylenediamine (OPD) by Fe3+ generates Fe2+ and photoactive 2,3-diaminophenazine (DAP). Under blue-light irradiation, DAP initiates the formation of holes and H2O2 that reacts with Fe2+ to hydroxyl radicals (·OH) and Fe3+ via an intersystem crossing (ISC) process. Moreover, the holes oxidize water to yield ·OH as well. The resulting ·OH and regenerated Fe3+ in turn oxidize OPD to yield more DAP, leading to a self-propagating reaction cycle that continues to proceed until all the OPD molecules are consumed, along with a distinct color change from colorless to yellow. Through the generation of the complex between DAP and acetone that limits the ISC process, and therefore quenches the colorimetric signal, the highly sensitive and selective naked-eye detection of acetone is achieved from 50 μM to 3 mM, with a limit of detection of 35 μM. Additionally, the feasibility of this colorimetric assay to detect acetone in real water samples is also demonstrated.
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Affiliation(s)
- Jingkai Liang
- National Collaborative Innovation Center for Nuclear Waste and Environmental Safety, School of National Defence Science and Technology, Southwest University of Science and Technology, Mianyang 621010, People's Republic of China
| | - Hua Li
- SUSTech Core Research Facilities, Southern University of Science and Technology, Shenzhen 518055, China
| | - Junren Wang
- National Collaborative Innovation Center for Nuclear Waste and Environmental Safety, School of National Defence Science and Technology, Southwest University of Science and Technology, Mianyang 621010, People's Republic of China
| | - Haili Yu
- National Collaborative Innovation Center for Nuclear Waste and Environmental Safety, School of National Defence Science and Technology, Southwest University of Science and Technology, Mianyang 621010, People's Republic of China
| | - Yi He
- National Collaborative Innovation Center for Nuclear Waste and Environmental Safety, School of National Defence Science and Technology, Southwest University of Science and Technology, Mianyang 621010, People's Republic of China
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22
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Li YK, Yang T, Chen ML, Wang JH. Recent Advances in Nanomaterials for Analysis of Trace Heavy Metals. Crit Rev Anal Chem 2020; 51:353-372. [PMID: 32182101 DOI: 10.1080/10408347.2020.1736505] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In an effort to achieve high sensitivity analysis methods for ultra-trace levels of heavy metals, numerous new nanomaterials are explored for the application in preconcentration processes and sensing systems. Nanomaterial-based methods have proven to be effective for selective analysis and speciation of heavy metals in combination with spectrometric techniques. This review outlined the different types of nanomaterials applied in the field of heavy metal analysis, and concentrated on the latest developments in various new materials. In particular, the functionalization of traditional materials and the exploitation of bio-functional materials could increase the specificity to target metals. The hybridization of multiple materials could improve material properties, to build novel sensor system or achieve detection-removal integration. Finally, we discussed the future perspectives of nanomaterials in the heavy metal preconcentration and sensor design, as well as their respective advantages and challenges. Despite impressive progress and widespread attention, the development of new nanomaterials and nanotechnology is still hampered by numerous challenges, particularly in the specificity to the target and the anti-interference performance in complex matrices.
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Affiliation(s)
- Yi-Kun Li
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
| | - Ting Yang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
| | - Ming-Li Chen
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China.,Analytical and Testing Center, Northeastern University, Shenyang, China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China
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23
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Biswas S, Chakraborty J, Agarwal A, Kumbhakar P. Gold nanostructures for the sensing of pH using a smartphone. RSC Adv 2019; 9:34144-34151. [PMID: 35529967 PMCID: PMC9073677 DOI: 10.1039/c9ra07101f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 10/07/2019] [Indexed: 11/21/2022] Open
Abstract
Recently, metal nanostructures have been found to be capable of recognizing small changes in their surrounding environment, which can be utilized as significant sensing tools. In this study, we demonstrated colorimetric sensing of pH by gold nanostructures (GNs) using a simple smartphone. An indigenously developed Android app based on the CIELab 1931 analysis, which could run in a smartphone, was used for the precise determination of the pH value of liquid media. The pH value of an unknown solution obtained from the developed Android app was also compared with that obtained from the conventional ratiometric technique and a commercial pH meter. In another endeavor, it was found that the synthesized GNs demonstrated a high energy transfer efficiency from a donor (namely, the rhodamine 6G, (Rh 6G)) dye. This property of the GNs can be utilized further in the future for studying different bimolecular activities within the human body. It was found that the photoluminescence (PL) of Rh 6G was quenched when it was kept in the vicinity of the synthesized GNs, which was explained in terms of the Förster energy transfer mechanism. Thus, the present study will open up a plethora of opportunities for researchers to employ the nanostructures of gold and other metals in developing low-cost and Internet of Things (IoT)-based sensing devices using only a smart phone.
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Affiliation(s)
- Subrata Biswas
- Nanoscience Laboratory, Dept. of Physics, National Institute of Technology Durgapur 713209 West Bengal India
| | - Jayjeet Chakraborty
- Department of Computer Science and Engineering (CSE), National Institute of Technology Durgapur 713209 West Bengal India
| | - Avinash Agarwal
- Department of Computer Science and Engineering (CSE), National Institute of Technology Durgapur 713209 West Bengal India
| | - Pathik Kumbhakar
- Nanoscience Laboratory, Dept. of Physics, National Institute of Technology Durgapur 713209 West Bengal India
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24
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Falahati M, Attar F, Sharifi M, Saboury AA, Salihi A, Aziz FM, Kostova I, Burda C, Priecel P, Lopez-Sanchez JA, Laurent S, Hooshmand N, El-Sayed MA. Gold nanomaterials as key suppliers in biological and chemical sensing, catalysis, and medicine. Biochim Biophys Acta Gen Subj 2019; 1864:129435. [PMID: 31526869 DOI: 10.1016/j.bbagen.2019.129435] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 09/11/2019] [Accepted: 09/11/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND Gold nanoparticles (AuNPs) with unique physicochemical properties have received a great deal of interest in the field of biological, chemical and biomedical implementations. Despite the widespread use of AuNPs in chemical and biological sensing, catalysis, imaging and diagnosis, and more recently in therapy, no comprehensive summary has been provided to explain how AuNPs could aid in developing improved sensing and catalysts systems as well as medical settings. SCOPE OF REVIEW The chemistry of Au-based nanosystems was followed by reviewing different applications of Au nanomaterials in biological and chemical sensing, catalysis, imaging and diagnosis by a number of approaches, and finally synergistic combination therapy of different cancers. Afterwards, the clinical impacts of AuNPs, future application of AuNPs, and opportunities and challenges of AuNPs application were also discussed. MAJOR CONCLUSIONS AuNPs show exclusive colloidal stability and are considered as ideal candidates for colorimetric detection, catalysis, imaging, and photothermal transducers, because their physicochemical properties can be tuned by adjusting their structural dimensions achieved by the different manufacturing methods. GENERAL SIGNIFICANCE This review provides some details about using AuNPs in sensing and catalysis applications as well as promising theranostic nanoplatforms for cancer imaging and diagnosis, and sensitive, non-invasive, and synergistic methods for cancer treatment in an almost comprehensive manner.
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Affiliation(s)
- Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Farnoosh Attar
- Department of Biology, Faculty of Food Industry & Agriculture, Standard Research Institute (SRI), Karaj, Iran
| | - Majid Sharifi
- Department of Nanotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq; Department of Medical Analysis, Faculty of Science, Tishk International University, Erbil, Iraq
| | - Falah Mohammad Aziz
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Irena Kostova
- Department of Chemistry, Faculty of Pharmacy, Medical University, 2 Dunav St., Sofia 1000, Bulgaria
| | - Clemens Burda
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, United States
| | - Peter Priecel
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD Liverpool, United Kingdom
| | - Jose A Lopez-Sanchez
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD Liverpool, United Kingdom
| | - Sophie Laurent
- General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, Avenue Maistriau, 19, B-7000 Mons, Belgium; Center for Microscopy and Molecular Imaging (CMMI), Rue A. Bolland, 8 B-6041 Gosselies, Belgium
| | - Nasrin Hooshmand
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, United States
| | - Mostafa A El-Sayed
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, United States
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25
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Hu L, Yin L, Wang F, Yu D, Wang C, Hui M, Chu L, Zhu X, Yan Z. Molecular spectra of a D-π-A typed polydentate ligand chromophore and its simultaneous response to trace Cu 2+ and Co 2. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 220:117130. [PMID: 31136860 DOI: 10.1016/j.saa.2019.05.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/12/2019] [Accepted: 05/12/2019] [Indexed: 06/09/2023]
Abstract
A D-π-A conjugated polydentate ligand chromophore, N-8'-quinolyl-2,4,6- trihydroxyl benzamide (NQTB), was identified and synthesized using tri-hydroxyl phenol as donated-electron group, N-heterocycle quinoline as accepted-electron one and CN bond as bridged one. It was expected to chelate some heavy metal ions with prominent colorimetric or spectral changes. After its UV-vis absorption spectrum was investigated in detail, it was noted that NQTB possessed excellent spectral recognition ability to Cu2+ and Co2+ from other coexisting ions in aqueous. Under the optimized conditions, NQTB could simultaneously discriminate trace Cu2+ and Co2+ in environmental aqueous samples with low detection limits (1.9 × 10-8 mol/L and 5.7 × 10-8 mol/L) and satisfying analytical precisions (R.S.D. ≤3.3% and ≤2.6%) respectively. The sensing mechanism was confirmed to form some stable 5-membered-co-6-membered condensed rings between Cu2+/Co2+ and O/N atoms in NQTB.
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Affiliation(s)
- Lei Hu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Liwen Yin
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Fang Wang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Dehua Yu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Chenshu Wang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Mingwei Hui
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Luyao Chu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xiao Zhu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China.
| | - Zhengquan Yan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China; Fujian Provincial Key Laboratory for Soft Functional Materials Research & School of Material Science and Engineering, Xiamen University, Xiamen 237012, China.
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26
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Li S, Li J, Ma X, Pang C, Yin G, Luo J. Molecularly imprinted electroluminescence switch sensor with a dual recognition effect for determination of ultra-trace levels of cobalt (II). Biosens Bioelectron 2019; 139:111321. [DOI: 10.1016/j.bios.2019.111321] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/06/2019] [Accepted: 05/12/2019] [Indexed: 10/26/2022]
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27
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Santangelo MF, Shtepliuk I, Filippini D, Puglisi D, Vagin M, Yakimova R, Eriksson J. Epitaxial Graphene Sensors Combined with 3D-Printed Microfluidic Chip for Heavy Metals Detection. SENSORS 2019; 19:s19102393. [PMID: 31130608 PMCID: PMC6567039 DOI: 10.3390/s19102393] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/13/2019] [Accepted: 05/22/2019] [Indexed: 01/17/2023]
Abstract
In this work, we investigated the sensing performance of epitaxial graphene on Si-face 4H-SiC (EG/SiC) for liquid-phase detection of heavy metals (e.g., Pb and Cd), showing fast and stable response and low detection limit. The sensing platform proposed includes 3D-printed microfluidic devices, which incorporate all features required to connect and execute lab-on-chip (LOC) functions. The obtained results indicate that EG exhibits excellent sensing activity towards Pb and Cd ions. Several concentrations of Pb2+ solutions, ranging from 125 nM to 500 µM, were analyzed showing Langmuir correlation between signal and Pb2+ concentrations, good stability, and reproducibility over time. Upon the simultaneous presence of both metals, sensor response is dominated by Pb2+ rather than Cd2+ ions. To explain the sensing mechanisms and difference in adsorption behavior of Pb2+ and Cd2+ ions on EG in water-based solutions, we performed van-der-Waals (vdW)-corrected density functional theory (DFT) calculations and non-covalent interaction (NCI) analysis, extended charge decomposition analysis (ECDA), and topological analysis. We demonstrated that Pb2+ and Cd2+ ions act as electron-acceptors, enhancing hole conductivity of EG, due to charge transfer from graphene to metal ions, and Pb2+ ions have preferential ability to binding with graphene over cadmium. Electrochemical measurements confirmed the conductometric results, which additionally indicate that EG is more sensitive to lead than to cadmium.
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Affiliation(s)
- Maria Francesca Santangelo
- Applied Sensors Science, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
| | - Ivan Shtepliuk
- Semiconductor Materials, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
| | - Daniel Filippini
- Optical Devices Laboratory, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
| | - Donatella Puglisi
- Applied Sensors Science, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
| | - Mikhail Vagin
- Division of Physics and Electronics, Department of Science and Technology, Physics and Electronics-ITN, Linköping University, SE-58183 Linköping, Sweden.
| | - Rositsa Yakimova
- Semiconductor Materials, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
| | - Jens Eriksson
- Applied Sensors Science, Department of Physics, Chemistry, and Biology-IFM, Linköping University, S-58183 Linköping, Sweden.
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28
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Wang J, Li H, Cai Y, Wang D, Bian L, Dong F, Yu H, He Y. Direct Blue Light-Induced Autocatalytic Oxidation of o-Phenylenediamine for Highly Sensitive Visual Detection of Triaminotrinitrobenzene. Anal Chem 2019; 91:6155-6161. [DOI: 10.1021/acs.analchem.9b00759] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jinhu Wang
- State Key Laboratory of Environment-friendly Energy Materials, Sichuan Co-Innovation Center for New Energetic Materials, Southwest University of Science and Technology, Mianyang 621010, People’s Republic of China
| | - Hua Li
- Materials Characterization and Preparation Center, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
| | - Yanhua Cai
- Chongqing Key Laboratory of Environmental Materials and Remediation Technology, Chongqing University of Arts and Sciences, Yongchuan 402160, People’s Republic of China
| | - Dunju Wang
- State Key Laboratory of Environment-friendly Energy Materials, Sichuan Co-Innovation Center for New Energetic Materials, Southwest University of Science and Technology, Mianyang 621010, People’s Republic of China
| | - Liang Bian
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, Sichuan, People’s Republic of China
| | - Faqin Dong
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, Sichuan, People’s Republic of China
| | - Haili Yu
- State Key Laboratory of Environment-friendly Energy Materials, Sichuan Co-Innovation Center for New Energetic Materials, Southwest University of Science and Technology, Mianyang 621010, People’s Republic of China
| | - Yi He
- State Key Laboratory of Environment-friendly Energy Materials, Sichuan Co-Innovation Center for New Energetic Materials, Southwest University of Science and Technology, Mianyang 621010, People’s Republic of China
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29
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Qiu J, Li Z, Miao L, Wang H, Zhang Y, Wu S, Zhang Y, Li X, Wu A. Colorimetric detection of Ba2+, Cd2+ and Pb2+ based on a multifunctionalized Au NP sensor. Analyst 2019; 144:5081-5089. [DOI: 10.1039/c9an00836e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A colorimetric method for the detection of three kinds of ions in water with one kind of detection reagent was developed.
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Affiliation(s)
- Jiaoyan Qiu
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Zihou Li
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Lijing Miao
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Hongsen Wang
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Yuenan Zhang
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Shasha Wu
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Yujie Zhang
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Xing Li
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
| | - Aiguo Wu
- Cixi Institute of Biomedical Engineering
- Key Laboratory of Magnetic Materials and Devices & Key Laboratory of Additive Manufacturing Materials of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ning-bo
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30
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Hu L, Zhu B, Zhang L, Yuan H, Zhao Q, Yan Z. Chitosan–gold nanocomposite and its functionalized paper strips for reversible visual sensing and removal of trace Hg2+ in practice. Analyst 2019; 144:474-480. [DOI: 10.1039/c8an01707g] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
To eliminate mercury contamination in aqueous environment, chitosan–gold nanocomposite and its functionalized paper strips were designed and developed for visual sensing and removal of trace Hg2+.
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Affiliation(s)
- Lei Hu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Baohui Zhu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Li Zhang
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Hua Yuan
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Qi Zhao
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Zhengquan Yan
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
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31
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A critical review on the metal sensing capabilities of optically active nanomaterials: Limiting factors, mechanism, and performance evaluation. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.09.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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32
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A highly sensitive colorimetric probe for Cd2+, Hg2+ and ascorbic acid determination based on trithiocyanuric acid-AuNPs. Talanta 2018; 188:266-272. [DOI: 10.1016/j.talanta.2018.05.084] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 05/18/2018] [Accepted: 05/24/2018] [Indexed: 01/22/2023]
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33
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Fu K, Zheng Y, Li J, Liu Y, Pang B, Song X, Xu K, Wang J, Zhao C. Colorimetric Immunoassay for Rapid Detection of Vibrio parahemolyticus Based on Mn 2+ Mediates the Assembly of Gold Nanoparticles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:9516-9521. [PMID: 30133275 DOI: 10.1021/acs.jafc.8b02494] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Vibrio parahemolyticus ( V. parahemolyticus) is an important food-borne pathogen that causes food poisoning and acute gastroenteritis in humans. Herein, a novel colorimetric immunoassay was presented for rapid detection of V. parahemolyticus using gold nanoparticles (18.1 nm diameter) as chromogenic substrate, whose combination of a magnetic bead-based sandwich immunoassay and an optical sensing system via Mn2+ ions mediated aggregation of gold nanoparticles. MnO2 nanoparticles coated with polyclonal IgG antibodies (7.8 nm diameter) are used to recognize the target and can be etched to generate manganese ions by ascorbic acid. A color change ranging from red to purple to blue can be easily discerned by bare eye, corresponding to V. parahemolyticus concentration in the range between 10 and 106 cfu·mL-1. The proposed method possesses high specificity with a limit of detection of 10 cfu·mL-1 and was successfully applied to determination of V. parahemolyticus in oyster samples without pre-enrichment. In our perception, it shows promise in rapid instrumental and on-site visual detection of V. parahemolyticus.
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Affiliation(s)
- Kaiyue Fu
- School of Public Health , Jilin University , Changchun 130021 , China
| | - Yan Zheng
- School of Public Health , Jilin University , Changchun 130021 , China
- The Department of Cadre Ward , The First Hospital of Jilin University , Changchun 130021 , China
| | - Juan Li
- School of Public Health , Jilin University , Changchun 130021 , China
| | - Yushen Liu
- School of Public Health , Jilin University , Changchun 130021 , China
| | - Bo Pang
- School of Public Health , Jilin University , Changchun 130021 , China
| | - Xiuling Song
- School of Public Health , Jilin University , Changchun 130021 , China
| | - Kun Xu
- School of Public Health , Jilin University , Changchun 130021 , China
| | - Juan Wang
- School of Public Health , Jilin University , Changchun 130021 , China
| | - Chao Zhao
- School of Public Health , Jilin University , Changchun 130021 , China
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34
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Aminated polyacrylonitrile nanofibers with immobilized gold-silver core-shell nanoparticles for use in a colorimetric test strip for copper(II). Mikrochim Acta 2018; 185:402. [DOI: 10.1007/s00604-018-2938-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 07/29/2018] [Indexed: 12/23/2022]
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35
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Colorimetric immunoassay for Listeria monocytogenes by using core gold nanoparticles, silver nanoclusters as oxidase mimetics, and aptamer-conjugated magnetic nanoparticles. Mikrochim Acta 2018; 185:360. [PMID: 29978265 DOI: 10.1007/s00604-018-2896-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 06/27/2018] [Indexed: 01/27/2023]
Abstract
The authors describe a rapid colorimetric assay for Listeria monocytogenes (L. monocytogenes) based on the o-phenylenediamine-mediated deaggregation of gold nanoparticles. Silver nanoclusters are used as an artificial enzyme that can oxidize o-phenylenediamine to form o-benzoquinone diamine. Aptamer and IgY antibodies were chosen to conjugate with magnetic beads and silver nanoclusters, respectively, which can recognize and bind L. monocytogenes at different specific binding sites. This results in the disassembly of colloidal gold nanoparticles which is accompanied by a color change from blue to red, with peaks at 730 and 525 nm, respectively. The method allows L. monocytogenes to be colorimetrically determined in the 10 to 106 cfu·mL-1 concentration range without pre-enrichment, and the limit of detection is as low as 10 cfu·mL-1. Recoveries ranging from 97.4 to 101.3% are found when analyzing spiked food samples. The assay is rapid, sensitive and specific. Graphical abstract Schematic illustration of a colorimetric method for detection of L. monocytogenes based on silver nanoclusters-catalyzed oxidation of OPD and de-aggregation of GNPs. A color change from blue to red can be observed and correlated to the concentration of L. monocytogenes.
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36
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“Gold rush” in modern science: Fabrication strategies and typical advanced applications of gold nanoparticles in sensing. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.01.006] [Citation(s) in RCA: 207] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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37
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Ullah N, Mansha M, Khan I, Qurashi A. Nanomaterial-based optical chemical sensors for the detection of heavy metals in water: Recent advances and challenges. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.01.002] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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