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Li XJ, Wang YS, Yang SY, Tang X, Liu L, Zhou B, Wang XF, Zhu YF, Huang YQ, He SZ. Determination of metallothioneins based on the enhanced peroxidase-like activity of mercury-coated gold nanoparticles aggregated by metallothioneins. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1828-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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52
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Lv X, Wu W, Niu C, Huang D, Wang X, Zhang X. A facile "turn-on" fluorescent method with high sensitivity for Hg(2+) detection using magnetic Fe3O4 nanoparticles and hybridization chain reactions. Talanta 2016; 151:62-67. [PMID: 26946010 DOI: 10.1016/j.talanta.2016.01.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 01/07/2016] [Accepted: 01/12/2016] [Indexed: 01/12/2023]
Abstract
In this manuscript, the authors molecularly engineered a hybridization chain reactions (HCRs) based probe on magnetic Fe3O4 nanoparticles for the sensitive detection of Hg(2+). The sensing system comprised three probes: capture probe H1, report probe H2, and report probe H3. The capture probe was modified on the surface of magnetic Fe3O4 nanoparticles. The report probes were labeled with fluorescein isothiocyanate (FITC). Without Hg(2+), the report probes were stable as molecular beacons in solution. In the presence of Hg(2+), the T-rich capture probes and report probes will hybridize into double-helical DNA domains with the aid of T-Hg(2+)-T coordination chemistry. Trigged by this reaction, more molecular beacons open and form a super tandem structure. Herein, the fluorescence signal was magnified by capturing more report probes. Separating the target and captured report probes from reaction solution was benefit to decrease the background signal and interference from other metal ions. The detection limit of this method was about 0.36nM, which is much lower than the regulations of World Health Organization and U.S. Environmental Protection Agency on Hg(2+) in drink water. This proposed sensing strategy also showed favorable selectivity over other common metal ions. In addition, it has good practicability in real water samples.
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Affiliation(s)
- Xiaoxiao Lv
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China
| | - Wenchen Wu
- Department of Orthopaedics, Heji Hospital, Changzhi Medical College, Shanxi 046000, China
| | - Chenggang Niu
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China.
| | - Dawei Huang
- South China Institute of Environmental Sciences, Ministry of Environmental Protection of PRC, Guangzhou 510655, China.
| | - Xiaoyu Wang
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China
| | - Xuegang Zhang
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, China
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Mao S, Chang J, Zhou G, Chen J. Nanomaterial-enabled Rapid Detection of Water Contaminants. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:5336-59. [PMID: 26315216 DOI: 10.1002/smll.201500831] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 05/24/2015] [Indexed: 05/18/2023]
Abstract
Water contaminants, e.g., inorganic chemicals and microorganisms, are critical metrics for water quality monitoring and have significant impacts on human health and plants/organisms living in water. The scope and focus of this review is nanomaterial-based optical, electronic, and electrochemical sensors for rapid detection of water contaminants, e.g., heavy metals, anions, and bacteria. These contaminants are commonly found in different water systems. The importance of water quality monitoring and control demands significant advancement in the detection of contaminants in water because current sensing technologies for water contaminants have limitations. The advantages of nanomaterial-based sensing technologies are highlighted and recent progress on nanomaterial-based sensors for rapid water contaminant detection is discussed. An outlook for future research into this rapidly growing field is also provided.
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Affiliation(s)
- Shun Mao
- Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin, 53211, USA
| | - Jingbo Chang
- Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin, 53211, USA
| | - Guihua Zhou
- Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin, 53211, USA
| | - Junhong Chen
- Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin, 53211, USA
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54
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Wang N, Li B, Qiao F, Sun J, Fan H, Ai S. Humic acid-assisted synthesis of stable copper nanoparticles as a peroxidase mimetic and their application in glucose detection. J Mater Chem B 2015; 3:7718-7723. [PMID: 32264581 DOI: 10.1039/c5tb00684h] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In this report, stable copper nanoparticles (Cu NPs) were prepared through a facile annealing process using humic acid as the reducing and stabilizing agents. The products were characterized by X-ray powder diffraction, scanning electron microscopy and Fourier transform infrared spectroscopy. The prepared Cu NPs show remarkably intrinsic peroxidase-like activity, which can rapidly catalyze the oxidation of the peroxidase substrate, 3,3',5,5'-tetramethylbenzidine (TMB), in the presence of H2O2 to produce a blue-color reaction. The detection limit of H2O2 by Cu NPs can be as low as 1.32 × 10-7 M. More importantly, the prepared Cu NPs show excellent stability, which can hardly be oxidized even after 6 months. Based on the aforementioned mechanism, a simple, rapid and selective colorimetric method for glucose detection was developed, and the detection limit of glucose was 6.86 × 10-7 M. This study provides a novel method for the preparation of stable Cu NPs, which may have widespread applications in the detection of glucose in the human body and pear juice.
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Affiliation(s)
- Nan Wang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, P. R. China.
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55
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Hsu CL, Lien CW, Wang CW, Harroun SG, Huang CC, Chang HT. Immobilization of aptamer-modified gold nanoparticles on BiOCl nanosheets: Tunable peroxidase-like activity by protein recognition. Biosens Bioelectron 2015; 75:181-7. [PMID: 26318787 DOI: 10.1016/j.bios.2015.08.049] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 08/11/2015] [Accepted: 08/21/2015] [Indexed: 11/28/2022]
Abstract
A self-assembled nanocomposite is prepared from an aqueous mixture of aptamer-modified gold nanoparticles (Apt-Au NPs), bismuth ions and chloride ions. The Apt-Au NPs are immobilized on bismuth oxychloride (BiOCl) nanosheets in situ to form Apt-Au NPs/BiOCl nanocomposites. The as-prepared nanocomposites exhibit high peroxidase-like activity for the catalytic conversion of Amplex Red (AR) to fluorescent resorufin in the presence of H2O2. The catalytic activity of Apt-Au NPs/BiOCl nanocomposites is at least 90-fold higher than that of Apt-Au NPs or BiOCl nanosheets, revealing synergistic effects on their activity. The catalytic activity of Apt-Au NPs/BiOCl nanocomposites is suppressed by vascular endothelial growth factor-A165 (VEGF-A165) molecules that specifically interact with the aptamer units (Del-5-1 and v7t-1) on the nanocomposite surface. The AR/H2O2-Apt-Au NPs/BiOCl nanocomposites probe shows high selectivity (>1000-fold over other proteins) and sensitivity (detection limit ~0.5nM) for the detection of VEGF-A165. Furthermore, the probe is employed for the detection of VEGF isoforms and for the study of interactions between VEGF and VEGF receptors. The practicality of this simple, rapid, cost-effective probe is validated by the analysis of VEGF-A165 in cell culture media, showing its great potential for the analysis of VEGF in biological samples.
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Affiliation(s)
- Chia-Lun Hsu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chia-Wen Lien
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chia-Wei Wang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Scott G Harroun
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chih-Ching Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan; School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
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56
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Highly sensitive and specific colorimetric detection of cancer cells via dual-aptamer target binding strategy. Biosens Bioelectron 2015; 73:1-6. [PMID: 26042871 DOI: 10.1016/j.bios.2015.05.044] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 05/04/2015] [Accepted: 05/21/2015] [Indexed: 11/22/2022]
Abstract
Simple, rapid, sensitive and specific detection of cancer cells is of great importance for early and accurate cancer diagnostics and therapy. By coupling nanotechnology and dual-aptamer target binding strategies, we developed a colorimetric assay for visually detecting cancer cells with high sensitivity and specificity. The nanotechnology including high catalytic activity of PtAuNP and magnetic separation & concentration plays a vital role on the signal amplification and improvement of detection sensitivity. The color change caused by small amount of target cancer cells (10 cells/mL) can be clearly distinguished by naked eyes. The dual-aptamer target binding strategy guarantees the detection specificity that large amount of non-cancer cells and different cancer cells (10(4) cells/mL) cannot cause obvious color change. A detection limit as low as 10 cells/mL with detection linear range from 10 to 10(5) cells/mL was reached according to the experimental detections in phosphate buffer solution as well as serum sample. The developed enzyme-free and cost effective colorimetric assay is simple and no need of instrument while still provides excellent sensitivity, specificity and repeatability, having potential application on point-of-care cancer diagnosis.
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57
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Zhang S, Li H, Wang Z, Liu J, Zhang H, Wang B, Yang Z. A strongly coupled Au/Fe3O4/GO hybrid material with enhanced nanozyme activity for highly sensitive colorimetric detection, and rapid and efficient removal of Hg(2+) in aqueous solutions. NANOSCALE 2015; 7:8495-502. [PMID: 25896803 DOI: 10.1039/c5nr00527b] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
We have developed an efficient strategy for synthesizing a strongly coupled Au/Fe3O4/GO hybrid material to improve the catalytic activity, stability, and separation capability of Au nanoparticles (NPs) and Hg(2+). The hybrid material can be synthesized by the direct anchoring of Au and Fe3O4 NPs on the functional groups of GO. This approach affords strong chemical attachments between the NPs and GO, allowing this hybrid material to ultrasensitively detect Hg(2+) in aqueous solutions with a detection limit as low as 0.15 nM. In addition, the deposition of Hg(0) on the surface of Au/Fe3O4/GO could be quickly (within 30 min) and efficiently (>99% elimination efficiency) removed by the simple application of an external magnetic field and then Au/Fe3O4/GO could be subsequently reused at least 15 times, with the elimination efficiency remaining high (>96%).
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Affiliation(s)
- Shouting Zhang
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry, and Key Laboratory of Special Function Materials and Structure Design, Ministry of Education, Lanzhou University Gansu, Lanzhou, 730000, People's Republic of China.
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58
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BSA-stabilized Pt nanozyme for peroxidase mimetics and its application on colorimetric detection of mercury(II) ions. Biosens Bioelectron 2015; 66:251-8. [DOI: 10.1016/j.bios.2014.11.032] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 10/25/2014] [Accepted: 11/18/2014] [Indexed: 01/27/2023]
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59
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Wang Q, Yang X, Yang X, Liu P, Wang K, Huang J, Liu J, Song C, Wang J. Colorimetric detection of mercury ion based on unmodified gold nanoparticles and target-triggered hybridization chain reaction amplification. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt B:283-287. [PMID: 25448931 DOI: 10.1016/j.saa.2014.08.129] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 08/30/2014] [Accepted: 08/31/2014] [Indexed: 06/04/2023]
Abstract
A novel unmodified gold nanoparticles (AuNPs)-based colorimetric strategy for label-free, specific and sensitive mercury ion (Hg(2+)) detection was demonstrated by using thymine-Hg(2)(+)-thymine (T-Hg(2)(+)-T) recognition mechanism and hybridization chain reaction (HCR) amplification strategy. In this protocol, a structure-switching probe (H0) was designed to recognize Hg(2+) and then propagated a chain reaction of hybridization events between two other hairpin probes (H1 and H2). In the absence of Hg(2+), all hairpin probes could stably coexist in solution, the exposed sticky ends of hairpin probes were capable of stabilizing AuNPs. As a result, salt-induced AuNPs aggregation could be effectively prevented. In the presence of Hg(2+), thymine bases of H0 could specifically interact with Hg(2+) to form stable T-Hg(2)(+)-T complex. Consequently, the hairpin structure of H0 probe was changed. As H1/H2 probes were added, the HCR process could be triggered and nicked double-helixes were formed. Since it was difficult for the formed nicked double-helixes to inhibit salt-induced AuNPs aggregation, a red-to-blue color change was observed in the colloid solution as the salt concentration increased. With the elegant amplification effect of HCR, a detection limit of around 30 nM was achieved (S/N=3), which was about 1-2 orders of magnitudes lower than that of previous unmodified AuNPs-based colorimetric methods. By using the T-Hg(2)(+)-T recognition mechanism, high selectivity was also obtained. As an unmodified AuNPs-based colorimetric strategy, the system was simple in design, convenient in operation, and eliminated the requirements of separation processes, chemical modifications, and sophisticated instrumentations.
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Affiliation(s)
- Qing Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry & Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Xiaohan Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry & Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Xiaohai Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry & Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Pei Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry & Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry & Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China.
| | - Jin Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry & Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Jianbo Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry & Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Chunxia Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry & Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Jingjing Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry & Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China
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60
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Zhang S, Wang K, Li J, Li Z, Sun T. Highly efficient colorimetric detection of ATP utilizing a split aptamer target binding strategy and superior catalytic activity of graphene oxide–platinum/gold nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra13550h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The specific binding of ATP and its aptamer linked the split aptamer-modified GO/PDDA/PtAuNPs and magnetic beads together. Using magnetic separation, TMB was catalyzed into a colored product by nanocomposites, which enabled rapid detection of ATP.
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Affiliation(s)
- Siqi Zhang
- College of Sciences
- Northeastern University
- Shenyang
- China
| | - Kun Wang
- College of Sciences
- Northeastern University
- Shenyang
- China
- Department of Chemistry and Environmental Engineering
| | - Jiali Li
- College of Sciences
- Northeastern University
- Shenyang
- China
| | - Zhenyu Li
- College of Sciences
- Northeastern University
- Shenyang
- China
| | - Ting Sun
- College of Sciences
- Northeastern University
- Shenyang
- China
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61
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Dong Y, Zhang J, Jiang P, Wang G, Wu X, Zhao H, Zhang C. Superior peroxidase mimetic activity of carbon dots–Pt nanocomposites relies on synergistic effects. NEW J CHEM 2015. [DOI: 10.1039/c5nj00012b] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CDs–Pt nanocomposites were prepared and proposed as robust enzyme mimetics for the first time.
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Affiliation(s)
- Yuming Dong
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Jingjing Zhang
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Pingping Jiang
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Guangli Wang
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Xiuming Wu
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Hui Zhao
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Chi Zhang
- Key Laboratory of Food Colloids and Biotechnology (Ministry of Education of China)
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
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62
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Wu GW, He SB, Peng HP, Deng HH, Liu AL, Lin XH, Xia XH, Chen W. Citrate-Capped Platinum Nanoparticle as a Smart Probe for Ultrasensitive Mercury Sensing. Anal Chem 2014; 86:10955-60. [DOI: 10.1021/ac503544w] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Gang-Wei Wu
- Department
of Pharmaceutical Analysis, Fujian Medical University, Fuzhou, Fujian 350004, China
- Department
of Pharmacy, Fujian Provincial Hospital, Fuzhou, Fujian 350001, China
| | - Shao-Bin He
- Department
of Pharmaceutical Analysis, Fujian Medical University, Fuzhou, Fujian 350004, China
- Nano
Medical Technology Research Institute, Fujian Medical University, Fuzhou, Fujian 350004, China
| | - Hua-Ping Peng
- Department
of Pharmaceutical Analysis, Fujian Medical University, Fuzhou, Fujian 350004, China
- Nano
Medical Technology Research Institute, Fujian Medical University, Fuzhou, Fujian 350004, China
| | - Hao-Hua Deng
- Department
of Pharmaceutical Analysis, Fujian Medical University, Fuzhou, Fujian 350004, China
- Nano
Medical Technology Research Institute, Fujian Medical University, Fuzhou, Fujian 350004, China
| | - Ai-Lin Liu
- Department
of Pharmaceutical Analysis, Fujian Medical University, Fuzhou, Fujian 350004, China
- Nano
Medical Technology Research Institute, Fujian Medical University, Fuzhou, Fujian 350004, China
| | - Xin-Hua Lin
- Department
of Pharmaceutical Analysis, Fujian Medical University, Fuzhou, Fujian 350004, China
- Nano
Medical Technology Research Institute, Fujian Medical University, Fuzhou, Fujian 350004, China
| | - Xing-Hua Xia
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Wei Chen
- Department
of Pharmaceutical Analysis, Fujian Medical University, Fuzhou, Fujian 350004, China
- Nano
Medical Technology Research Institute, Fujian Medical University, Fuzhou, Fujian 350004, China
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63
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Wang Q, Song Y, Chai Y, Pan G, Li T, Yuan Y, Yuan R. Electrochemical immunosensor for detecting the spore wall protein of Nosema bombycis based on the amplification of hemin/G-quadruplex DNAzyme concatamers functionalized Pt@Pd nanowires. Biosens Bioelectron 2014; 60:118-23. [DOI: 10.1016/j.bios.2014.03.075] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/29/2014] [Accepted: 03/31/2014] [Indexed: 11/26/2022]
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64
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Su D, Yang X, Xia Q, Zhang Q, Chai F, Wang C, Qu F. Folic acid functionalized silver nanoparticles with sensitivity and selectivity colorimetric and fluorescent detection for Hg2+ and efficient catalysis. NANOTECHNOLOGY 2014; 25:355702. [PMID: 25116278 DOI: 10.1088/0957-4484/25/35/355702] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this research, folic acid functionalized silver nanoparticles (FA-AgNPs) were selected as a colorimetric and a 'turn on' fluorescent sensor for detecting Hg(2+). After being added into Hg(2+), AgNPs can emit stable fluorescence at 440 nm when the excitation wavelength is selected at 275 nm. The absorbance and fluorescence of the FA-AgNPs could reflect the concentration of the Hg(2+) ions. Thus, we developed a simple, sensitive analytical method to detect Hg(2+) based on the colorimetric and fluorescence enhancement of FA-AgNPs. The sensor exhibits two linear response ranges between absorbance and fluorescence intensity with Hg(2+) concentration, respectively. Meanwhile, a detection limit of 1 nM is estimated based on the linear relationship between responses with a concentration of Hg(2+). The high specificity of Hg(2+) with FA-AgNPs interactions provided the excellent selectivity towards detecting Hg(2+) over other metal ions (Pb(2+), Mg(2+), Zn(2+), Ni(2+), Cu(2+), Co(2+), Ca(2+), Mn(2+), Fe(2+), Cd(2+), Ba(2+), Cr(6+) and Cr(3+)). This will provide a simple, effective and multifunctional colorimetric and fluorescent sensor for on-site and real-time Hg(2+) ion detection. The proposed method can be applied to the analysis of trace Hg(2+) in lake water. Additionally, the FA-AgNPs can be used as efficient catalyst for the reduction of 4-nitrophenol and potassium hexacyanoferrate (III).
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Affiliation(s)
- Dongyue Su
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, 150025, People's Republic of China
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65
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Lien CW, Tseng YT, Huang CC, Chang HT. Logic control of enzyme-like gold nanoparticles for selective detection of lead and mercury ions. Anal Chem 2014; 86:2065-72. [PMID: 24451013 DOI: 10.1021/ac4036789] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Functional logic gates based on lead ions (Pb(2+)) and mercury ions (Hg(2+)) that induce peroxidase-like activities in gold nanoparticles (Au NPs) in the presence of platinum (Pt(4+)) and bismuth ions (Bi(3+)) are presented. The "AND" logic gate is constructed using Pt(4+)/Pb(2+) as the input and the peroxidase-like activity of the Au NPs as the output; this logic gate is denoted as "Pt(4+)/Pb(2+)(AND)-Au NPPOX". When Pt(4+) and Pb(2+) coexist, strong metallophilic interactions (between Pt and Pb atoms/ions) and aurophilic interactions (between Au and Pb/Pt atoms/ions) result in significant increases in the deposition of Pt and Pb atoms/ions onto the Au NPs, leading to enhanced peroxidase-like activity. The "INHIBIT" logic gate is fabricated by using Bi(3+) and Hg(2+) as the input and the peroxidase-like activity of the Au NPs as the output; this logic gate is denoted as "Bi(3+)/Hg(2+)(INHIBIT)-Au NPPOX". High peroxidase-like activity of Au NPs in the presence of Bi(3+) is a result of the various valence (oxidation) states of Bi(3+) and Au (Au(+)/Au(0)) atoms on the nanoparticle's surface. When Bi(3+) and Hg(2+) coexist, strong Hg-Au amalgamation results in a large decrease in the peroxidase-like activity of the Au NPs. These two probes (Pt(4+)/Pb(2+)(AND)-Au NPPOX and Bi(3+)/Hg(2+)(INHIBIT)-Au NPPOX) allow selective detection of Pb(2+) and Hg(2+) down to nanomolar quantities. The practicality of these two probes has been validated by analysis of Pb(2+) and Hg(2+) in environmental water samples (tap water, river water, and lake water). In addition, an integrated logic circuit based on the color change (formation of reddish resorufin product) and generation of O2 bubbles from these two probes has been constructed, allowing visual detection of Pb(2+) and Hg(2+) in aqueous solution.
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Affiliation(s)
- Chia-Wen Lien
- Department of Chemistry, National Taiwan University , Taipei, 10617, Taiwan
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66
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Mu J, Zhang L, Zhao G, Wang Y. The crystal plane effect on the peroxidase-like catalytic properties of Co3O4 nanomaterials. Phys Chem Chem Phys 2014; 16:15709-16. [DOI: 10.1039/c4cp01326c] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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67
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Zhu R, Zhou Y, Wang XL, Liang LP, Long YJ, Wang QL, Zhang HJ, Huang XX, Zheng HZ. Detection of Hg2+ based on the selective inhibition of peroxidase mimetic activity of BSA-Au clusters. Talanta 2013; 117:127-32. [DOI: 10.1016/j.talanta.2013.08.053] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 08/22/2013] [Accepted: 08/28/2013] [Indexed: 10/26/2022]
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Lien CW, Chen YC, Chang HT, Huang CC. Logical regulation of the enzyme-like activity of gold nanoparticles by using heavy metal ions. NANOSCALE 2013; 5:8227-8234. [PMID: 23860719 DOI: 10.1039/c3nr01836a] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this study we employed self-deposition and competitive or synergistic interactions between metal ions and gold nanoparticles (Au NPs) to develop OR, AND, INHIBIT, and XOR logic gates through regulation of the enzyme-like activity of Au NPs. In the presence of various metal ions (Ag(+), Bi(3+), Pb(2+), Pt(4+), and Hg(2+)), we found that Au NPs (13 nm) exhibited peroxidase-, oxidase-, or catalase-like activity. After Ag(+), Bi(3+), or Pb(2+) ions had been deposited on the Au NPs, the particles displayed strong peroxidase-like activity; on the other hand, they exhibited strong oxidase- and catalase-like activities after reactions with Ag(+)/Hg(2+) and Hg(2+)/Bi(3+) ions, respectively. The catalytic activities of these Au NPs arose mainly from the various oxidation states of the surface metal atoms/ions. Taking advantage of this behavior, we constructed multiplex logic operations-OR, AND, INHIBIT, and XOR logic gates-through regulation of the enzyme-like activity after the introduction of metal ions into the Au NP solution. When we deposited Hg(2+) and/or Bi(3+) ions onto the Au NPs, the catalase-like activities of the Au NPs were strongly enhanced (>100-fold). Therefore, we could construct an OR logic gate by using Hg(2+)/Bi(3+) as inputs and the catalase-like activity of the Au NPs as the output. Likewise, we constructed an AND logic gate by using Pt(4+) and Hg(2+) as inputs and the oxidase-like activity of the Au NPs as the output; the co-deposition of Pt and Hg atoms/ions on the Au NPs was responsible for this oxidase-like activity. Competition between Pb(2+) and Hg(2+) ions for the Au NPs allowed us to develop an INHIBIT logic gate-using Pb(2+) and Hg(2+) as inputs and the peroxidase-like activity of the Au NPs as the output. Finally, regulation of the peroxidase-like activity of the Au NPs through the two inputs Ag(+) and Bi(3+) enabled us to construct an XOR logic gate.
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Affiliation(s)
- Chia-Wen Lien
- Department of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
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Tian Y, Shi W, Luo J, Ma F, Mi H, Lei Y. Carbazole-based conjugated polymer covalently coated Fe3
O4
nanoparticle as efficient and reversible Hg2+
optical probe. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26759] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yong Tian
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering, Xinjiang University; Urumqi 830046 People's Republic of China
- Key Laboratory of Functional Polymers; Xinjiang University; Urumqi 830046 People's Republic of China
| | - Wei Shi
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering, Xinjiang University; Urumqi 830046 People's Republic of China
- Key Laboratory of Functional Polymers; Xinjiang University; Urumqi 830046 People's Republic of China
| | - Jianmin Luo
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering, Xinjiang University; Urumqi 830046 People's Republic of China
| | - Fudong Ma
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering, Xinjiang University; Urumqi 830046 People's Republic of China
- Key Laboratory of Functional Polymers; Xinjiang University; Urumqi 830046 People's Republic of China
| | - Hongyu Mi
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering, Xinjiang University; Urumqi 830046 People's Republic of China
| | - Yanli Lei
- Key Laboratory of Oil & Gas Fine Chemicals; Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering, Xinjiang University; Urumqi 830046 People's Republic of China
- Key Laboratory of Functional Polymers; Xinjiang University; Urumqi 830046 People's Republic of China
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70
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Su D, Yang X, Xia Q, Chai F, Wang C, Qu F. Colorimetric detection of Hg2+ using thioctic acid functionalized gold nanoparticles. RSC Adv 2013. [DOI: 10.1039/c3ra43276a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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71
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McKeating KS, Sloan-Dennison S, Graham D, Faulds K. An investigation into the simultaneous enzymatic and SERRS properties of silver nanoparticles. Analyst 2013; 138:6347-53. [DOI: 10.1039/c3an01451g] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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72
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Wei TY, Chang HY, Huang CC. Synthesis of tellurium nanotubes via a green approach for detection and removal of mercury ions. RSC Adv 2013. [DOI: 10.1039/c3ra41824c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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