101
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Zhao X, Gao J, He X, Cong L, Zhao H, Li X, Tan F. DNA-modified graphene quantum dots as a sensing platform for detection of Hg2+in living cells. RSC Adv 2015. [DOI: 10.1039/c5ra06984j] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile method for detection of Hg2+in living cells based on DNA modified graphene quantum dots.
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Affiliation(s)
- Xin Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Jinsuo Gao
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Xin He
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Longchao Cong
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Huimin Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Xiaoyu Li
- School of Life Science and Biotechnology
- Dalian University of Technology
- Dalian 116024
- China
| | - Feng Tan
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
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102
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Manjumeena R, Duraibabu D, Rajamuthuramalingam T, Venkatesan R, Kalaichelvan PT. Highly responsive glutathione functionalized green AuNP probe for precise colorimetric detection of Cd2+ contamination in the environment. RSC Adv 2015. [DOI: 10.1039/c5ra12427a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Precise colorimetric detection of Cd2+ using a glutathione functionalized phytosynthesized AuNP probe provides an ecofriendly approach to heavy metal detection.
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103
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Lin JH, Tseng WL. Ultrasensitive detection of target analyte-induced aggregation of gold nanoparticles using laser-induced nanoparticle Rayleigh scattering. Talanta 2015; 132:44-51. [DOI: 10.1016/j.talanta.2014.08.055] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 08/19/2014] [Accepted: 08/20/2014] [Indexed: 01/09/2023]
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104
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Liu CG, Gao ML, Liu S, Zhang DF. Tetrathiafulvalene derivatives as cation sensor: density functional theory investigation of the hyper-Rayleigh scattering first hyperpolarizability. RSC Adv 2015. [DOI: 10.1039/c5ra00554j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The hyper-Rayleigh scattering first hyperpolarizability of a series of extended tetrathiafulvalene (TTF) and TTF derivatives have been theoretically investigated using density functional theory to explore their use as potential cation sensor.
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Affiliation(s)
- Chun-Guang Liu
- College of Chemical Engineering
- Northeast Dianli University
- P. R. China
- Institute of Functional Material Chemistry
- Faculty of Chemistry
| | - Ming-Li Gao
- College of Chemical Engineering
- Northeast Dianli University
- P. R. China
| | - Shuang Liu
- College of Chemical Engineering
- Northeast Dianli University
- P. R. China
| | - Ding-Fan Zhang
- College of Chemical Engineering
- Northeast Dianli University
- P. R. China
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105
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Choi S, Kim Y. Gold nanoparticle-based fluorescent “turn-on” sensing system for the selective detection of mercury ions in aqueous solution. RSC Adv 2015. [DOI: 10.1039/c5ra20152g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple and straightforward fluorometric assay using dye-adsorbed gold nanoparticles (AuNPs) was used in the highly selective and sensitive detection of mercury ions in aqueous buffer solution.
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Affiliation(s)
- Sohee Choi
- Department of Chemistry
- Institute of Nanosensor and Biotechnology
- Dankook University
- Yongin-si
- Korea
| | - Youngmi Kim
- Department of Chemistry
- Institute of Nanosensor and Biotechnology
- Dankook University
- Yongin-si
- Korea
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106
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Li C, Dai P, Rao X, Shao L, Cheng G, He P, Fang Y. An ultra-sensitive colorimetric Hg2+-sensing assay based on DNAzyme-modified Au NP aggregation, MNPs and an endonuclease. Talanta 2015; 132:463-8. [DOI: 10.1016/j.talanta.2014.09.037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 09/18/2014] [Accepted: 09/28/2014] [Indexed: 10/24/2022]
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107
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Qi YX, Zhang M, Zhu A, Shi G. Terbium(iii)/gold nanocluster conjugates: the development of a novel ratiometric fluorescent probe for mercury(ii) and a paper-based visual sensor. Analyst 2015; 140:5656-61. [DOI: 10.1039/c5an00802f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A novel ratiometric fluorescent probe was developed for detection of mercury in rat tissues based on terbium(iii)/gold nanocluster conjugates. Meanwhile, a paper-based visual sensor for detection of Hg2+ with the naked eye was designed.
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Affiliation(s)
- Yan-Xia Qi
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Min Zhang
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Anwei Zhu
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
| | - Guoyue Shi
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200241
- China
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108
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Berlina AN, Sharma AK, Zherdev AV, Gaur MS, Dzantiev BB. Colorimetric Determination of Lead Using Gold Nanoparticles. ANAL LETT 2014. [DOI: 10.1080/00032719.2014.961641] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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109
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Chen CH, Lin FS, Liao WN, Liang SL, Chen MH, Chen YW, Lin WY, Hsu MH, Wang MY, Peir JJ, Chou FI, Chen CY, Chen SY, Huang SC, Yang MH, Hueng DY, Hwu Y, Yang CS, Chen JK. Establishment of a Trimodality Analytical Platform for Tracing, Imaging and Quantification of Gold Nanoparticles in Animals by Radiotracer Techniques. Anal Chem 2014; 87:601-8. [DOI: 10.1021/ac503260f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Chien-Hung Chen
- Institute of Biomedical Engineering & Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Fong-Sian Lin
- Institute of Biomedical Engineering & Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Wei-Neng Liao
- Institute of Biomedical Engineering & Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Sanching L. Liang
- Institute of Biomedical Engineering & Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Min-Hua Chen
- Institute of Biomedical Engineering & Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Yo-Wen Chen
- Department
of Nuclear Medicine, Taichung Veterans General Hospital, Taichung 40705, Taiwan
| | - Wan-Yu Lin
- Department
of Nuclear Medicine, Taichung Veterans General Hospital, Taichung 40705, Taiwan
| | | | | | | | | | - Ching-Ya Chen
- Institute of Biomedical Engineering & Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Sih-Yu Chen
- Institute of Biomedical Engineering & Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Su-Chin Huang
- Institute of Biomedical Engineering & Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan
| | | | - Dueng-Yuan Hueng
- Department
of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan
| | - Yeukuang Hwu
- Institute
of Physics, Academia Sinica, Taipei 11529, Taiwan
| | - Chung-Shi Yang
- Institute of Biomedical Engineering & Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Jen-Kun Chen
- Institute of Biomedical Engineering & Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan
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110
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Tan ZQ, Liu JF, Yin YG, Shi QT, Jing CY, Jiang GB. Colorimetric Au nanoparticle probe for speciation test of arsenite and arsenate inspired by selective interaction between phosphonium ionic liquid and arsenite. ACS APPLIED MATERIALS & INTERFACES 2014; 6:19833-9. [PMID: 25335190 DOI: 10.1021/am5052069] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The exposure of millions of people to unsafe levels of arsenite (AsIII) and arsenate (AsV) in drinking waters calls for the development of low-cost methods for on-site monitoring these two arsenic species in waters. Herein, for the first time, tetradecyl (trihexyl) phosphonium chloride ionic liquid was found to selectively bind with AsIII via extended X-ray absorption fine structure (EXAFS) analysis. Based on the finding, an AsIII-specific probe was developed by modifying gold nanoparticles with the ionic liquid. Futhermore, Hofmeister effect was primarily observed to significantly affect the sensitivity of gold nanoparticle probe. With the colorimetric probe, we developed a protocol for naked eye speciation test of AsIII and AsV at levels below the World Health Organization (WHO) guideline of 10 μg L(-1). This method featured with high tolerance to common coexisting ions such as 10 mM PO4(3-), and was validated by assaying certified reference and environmental water samples.
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Affiliation(s)
- Zhi-Qiang Tan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
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111
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Zhu S, Zhuo Y, Miao H, Zhong D, Yang X. Detection of mercury(II) by DNA templated gold nanoclusters based on forming thymidine–Hg
2+
–thymidine duplexes. LUMINESCENCE 2014; 30:631-6. [DOI: 10.1002/bio.2797] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/18/2014] [Accepted: 09/08/2014] [Indexed: 01/27/2023]
Affiliation(s)
- Shanshan Zhu
- College of Pharmaceutical Sciences Engineering Research Center of Chongqing Pharmaceutical Process and Quality ControlSouthwest University Chongqing 400716 China
| | - Yan Zhuo
- College of Pharmaceutical Sciences Engineering Research Center of Chongqing Pharmaceutical Process and Quality ControlSouthwest University Chongqing 400716 China
| | - Hong Miao
- College of Pharmaceutical Sciences Engineering Research Center of Chongqing Pharmaceutical Process and Quality ControlSouthwest University Chongqing 400716 China
| | - Dan Zhong
- College of Pharmaceutical Sciences Engineering Research Center of Chongqing Pharmaceutical Process and Quality ControlSouthwest University Chongqing 400716 China
| | - Xiaoming Yang
- College of Pharmaceutical Sciences Engineering Research Center of Chongqing Pharmaceutical Process and Quality ControlSouthwest University Chongqing 400716 China
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112
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Tharmaraj V, Yang J. Sensitive and selective colorimetric detection of Cu(2+) in aqueous medium via aggregation of thiomalic acid functionalized Ag nanoparticles. Analyst 2014; 139:6304-9. [PMID: 25316548 DOI: 10.1039/c4an01449a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and effective colorimetric method for determination of Cu(2+) in real samples was developed. In this method, thiomalic acid functionalized silver nanoparticles (TMA-AgNPs) were prepared and changes in solution color, induced by the aggregation of TMA-AgNPs in the presence of Cu(2+), were employed for quantitative analysis. The surface plasmon resonance (SPR) band of our synthesized TMA-AgNPs was located at 392 nm and shifted to a longer wavelength after aggregation due to the interactions between carboxylate and Cu(2+). A band intensity ratio of A455/(A392-A455) was constructed and used to correlate with the concentration of Cu(2+). A linear relationship was found with a linear response up to 50 nM of Cu(2+). Due to the formation of a stable carboxylate Cu(2+) complex, highly sensitive detection of Cu(2+) was achieved with the estimated detection limit approaching 1 nM. Moreover, the formation of the stable complex leads to high selectivity in the detection of Cu(2+), which was verified by examination of 12 other metal ions. In the detection of Cu(2+) in real samples, results indicated that our proposed method is simple, sensitive and selective for application in such measurements.
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Affiliation(s)
- Vairaperumal Tharmaraj
- Department of Chemistry, National Chung-Hsing University, 250 Kuo-Kuang Rd, Taichung 402, Taiwan.
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113
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Cheng X, Li S, Zhong Z, Wang S, He P. Carbamodithioate-based dual functional fluorescent probe for Hg(2+) and S(2-). J Fluoresc 2014; 24:1727-33. [PMID: 25263098 DOI: 10.1007/s10895-014-1461-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 09/16/2014] [Indexed: 11/25/2022]
Abstract
Carbamodithioate-based compound T1 was designed and synthesized as a dual-functional probe for Hg(2+) ions and S(2-) anions. The underlying signaling mechanism was intramolecular charge transfer (ICT). It could serve as a direct probe towards Hg(2+) ions through "on-off" fluorescence changes and an indirect probe towards S(2-) anions through "on-off-on" fluorescence changes.
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Affiliation(s)
- Xiaohong Cheng
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, 441053, Hubei Province, People's Republic of China,
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114
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Chen Z, Zhang C, Tan Y, Zhou T, Ma H, Wan C, Lin Y, Li K. Chitosan-functionalized gold nanoparticles for colorimetric detection of mercury ions based on chelation-induced aggregation. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1365-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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115
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Du J, Zhu B, Peng X, Chen X. Optical reading of contaminants in aqueous media based on gold nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:3461-3479. [PMID: 24578321 DOI: 10.1002/smll.201303256] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 12/14/2013] [Indexed: 06/03/2023]
Abstract
With increasing trends of global population growth, urbanization, pollution over-exploitation, and climate change, the safe water supply has become a global issue and is threatening our society in terms of sustainable development. Therefore, there is a growing need for a water-monitoring platform with the capability of rapidness, specificity, low-cost, and robustness. This review summarizes the recent developments in the design and application of gold nanoparticles (AuNPs) based optical assays to detect contaminants in aqueous media with a high performance. First, a brief discussion on the correlation between the optical reading strategy and the optical properties of AuNPs is presented. Then, we summarize the principle behind AuNP-based optical assays to detect different contaminants, such as toxic metal ion, anion, and pesticides, according to different optical reading strategies: colorimetry, scattering, and fluorescence. Finally, the comparison of these assays and the outlook of AuNP-based optical detection are discussed.
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Affiliation(s)
- Jianjun Du
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore; State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
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116
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Thatai S, Khurana P, Boken J, Prasad S, Kumar D. Nanoparticles and core–shell nanocomposite based new generation water remediation materials and analytical techniques: A review. Microchem J 2014. [DOI: 10.1016/j.microc.2014.04.001] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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117
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Colorimetric detection of mercury(II) in aqueous media with high selectivity using calixarene functionalized gold nanoparticles. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.04.047] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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118
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Das K, Uppal A, Saini RK, Varshney GK, Mondal P, Gupta PK. Hyper-Rayleigh scattering from gold nanoparticles: effect of size and shape. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 128:398-402. [PMID: 24682054 DOI: 10.1016/j.saa.2014.02.152] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 02/20/2014] [Accepted: 02/23/2014] [Indexed: 06/03/2023]
Abstract
We report hyper-Rayleigh scattering (HRS) properties of gold nanoparticles (GNPs) of five different shapes, quasi-spherical (∼10 and ∼20 nm diameter), rod (aspect ratio ∼2), and branched shapes, tetrapod, flower and star with 800 nm, 150 fs laser excitation. Using ∼10 nm spherical GNPs as reference, the first hyperpolarizability (β) values were calculated for all other shapes. Star and flower shaped GNPs have the highest hyperpolarizability (∼130 and ∼52 times higher, respectively), while rod and tetrapod shaped GNPs only have modest enhancement (∼7 times), which is similar to ∼20 nm size quasi-spherical particles. These enhancements are attributed to reduced symmetry as well as the presence of sharp tips on GNP surface. When the β values are normalized with respect to the number of atoms per particle, the flower and star shaped GNPs still have the highest hyperpolarizability values. The polar plots of vertically polarized HRS signal as a function of the angle of polarization of the incoming incident light shows two lobes, indicating that excitation is predominantly dipolar in nature although the size of some GNPs are big enough to show a quadrupolar response. It is believed that the presence of sharp tips at the surface of these large sized GNPs is responsible for the observed dipolar response. This study shows that GNPs having sharp tips might be a better candidate when their nonlinear properties are used for sensing applications.
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Affiliation(s)
- K Das
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India.
| | - A Uppal
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India
| | - R K Saini
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India
| | - G K Varshney
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India
| | - P Mondal
- Indus Synchrotrons Utilization Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India
| | - P K Gupta
- Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore 452013, MP, India
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119
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Facile colorimetric detection of Hg2+ based on anti-aggregation of silver nanoparticles. Biosens Bioelectron 2014; 57:139-42. [DOI: 10.1016/j.bios.2014.02.007] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 02/04/2014] [Accepted: 02/05/2014] [Indexed: 12/29/2022]
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120
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Development of silver/gold nanocages onto indium tin oxide glass as a reagentless plasmonic mercury sensor. Anal Chim Acta 2014; 825:51-6. [DOI: 10.1016/j.aca.2014.03.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 03/25/2014] [Accepted: 03/26/2014] [Indexed: 11/22/2022]
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121
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Dasary SSR, Ray PC, Singh AK, Arbneshi T, Yu H, Senapati D. A surface enhanced Raman scattering probe for highly selective and ultra sensitive detection of iodide in water and salt samples. Analyst 2014; 138:1195-203. [PMID: 23295241 DOI: 10.1039/c2an36293g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Iodine is a biophilic and essential trace element for all life and especially for vertebrates, which require it to produce indispensable thyroid hormones in their thyroid glands. As a result, the adequate measurement of iodine in water and food samples is crucial to lead a healthy life. Motivated by its importance, this is the first time in the literature that the highly selective and ultra sensitive (30 ppt limit) surface enhanced Raman scattering (SERS)-based detection of iodide ions (I(-)) from environmental and food samples has been reported. The desired sensitivity and selectivity has been achieved by measuring the change in the SERS intensity originating from Rh6G-adsorbed 30 nm gold nanoparticles (GNPs) upon the addition of I(-). The strong chemical affinity offered by I(-) towards the gold surface results in extra negative charge being deposited on it. As a result, the GNP surface attracts a greater number of positively charged Rh6G molecules and induces a marked increase in the number of hot spots through aggregation, providing a significant enhancement of the Raman signal intensity. The oxidation of I(-) to molecular iodine (I(2)) by hydrogen peroxide (H(2)O(2)) is employed for the successful screening of the bromide ion (Br(-)) which shows substantial interference at higher concentrations.
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Affiliation(s)
- Samuel S R Dasary
- Department of Chemistry, Jackson State University, Jackson, MS 39217, USA
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122
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Kim JH, Park JS, Kim MG. Time-dependent change of Hyper-Rayleigh Scattering from silver nanoparticle aggregates induced by salt. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.03.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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123
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Wan J, Yin G, Ma X, Xing L, Luo X. Highly Sensitive Electrochemiluminescence Detection of Mercury(II) Ions Based on DNA-Linked Luminol-Au NPs Superstructure. ELECTROANAL 2014. [DOI: 10.1002/elan.201300628] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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124
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Yuan Y, Jiang S, Miao Q, Zhang J, Wang M, An L, Cao Q, Guan Y, Zhang Q, Liang G. Fluorescent switch for fast and selective detection of mercury (II) ions in vitro and in living cells and a simple device for its removal. Talanta 2014; 125:204-9. [PMID: 24840434 DOI: 10.1016/j.talanta.2014.02.063] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 02/25/2014] [Accepted: 02/25/2014] [Indexed: 11/18/2022]
Abstract
A water-soluble, biocompatible, and fluorescent chemosensor (1) for label-free, simple, and fast detection of mercury ions (Hg(2+)) in aqueous solutions and in HepG2 cells with high selectivity is reported herein. Chelation of 1 with Hg(2+) results in the disappearance of its fluorescence emission at 350 nm and the appearance of a new emission at 405 nm. Selectivity and interference studies indicated that 1 could be selectively chelated by Hg(2+) without interference from other metal ions. Insight into the mechanisms responsible for its fluorescence effect was gained from ultrafast transient absorption spectroscopy. With these properties, 1 was successfully applied for imaging Hg(2+) in living cells and for removing Hg(2+) from river water. Moreover, we also constructed a simple device for fast and effective removal of Hg(2+) from contaminated liquid samples.
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Affiliation(s)
- Yue Yuan
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Anhui 230026, China
| | - Shenlong Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Qingqing Miao
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Anhui 230026, China
| | - Jia Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Mengjing Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Anhui 230026, China
| | - Linna An
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Anhui 230026, China
| | - Qinjingwen Cao
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Anhui 230026, China
| | - Yafeng Guan
- Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Qun Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Gaolin Liang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Anhui 230026, China.
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125
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Zhou W, Su J, Chai Y, Yuan R, Xiang Y. Naked eye detection of trace cancer biomarkers based on biobarcode and enzyme-assisted DNA recycling hybrid amplifications. Biosens Bioelectron 2014; 53:494-8. [DOI: 10.1016/j.bios.2013.10.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 09/27/2013] [Accepted: 10/11/2013] [Indexed: 12/31/2022]
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126
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127
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Wei Q, Nagi R, Sadeghi K, Feng S, Yan E, Ki SJ, Caire R, Tseng D, Ozcan A. Detection and spatial mapping of mercury contamination in water samples using a smart-phone. ACS NANO 2014; 8:1121-9. [PMID: 24437470 PMCID: PMC3949663 DOI: 10.1021/nn406571t] [Citation(s) in RCA: 227] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 01/19/2014] [Indexed: 05/19/2023]
Abstract
Detection of environmental contamination such as trace-level toxic heavy metal ions mostly relies on bulky and costly analytical instruments. However, a considerable global need exists for portable, rapid, specific, sensitive, and cost-effective detection techniques that can be used in resource-limited and field settings. Here we introduce a smart-phone-based hand-held platform that allows the quantification of mercury(II) ions in water samples with parts per billion (ppb) level of sensitivity. For this task, we created an integrated opto-mechanical attachment to the built-in camera module of a smart-phone to digitally quantify mercury concentration using a plasmonic gold nanoparticle (Au NP) and aptamer based colorimetric transmission assay that is implemented in disposable test tubes. With this smart-phone attachment that weighs <40 g, we quantified mercury(II) ion concentration in water samples by using a two-color ratiometric method employing light-emitting diodes (LEDs) at 523 and 625 nm, where a custom-developed smart application was utilized to process each acquired transmission image on the same phone to achieve a limit of detection of ∼ 3.5 ppb. Using this smart-phone-based detection platform, we generated a mercury contamination map by measuring water samples at over 50 locations in California (USA), taken from city tap water sources, rivers, lakes, and beaches. With its cost-effective design, field-portability, and wireless data connectivity, this sensitive and specific heavy metal detection platform running on cellphones could be rather useful for distributed sensing, tracking, and sharing of water contamination information as a function of both space and time.
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Affiliation(s)
- Qingshan Wei
- Electrical Engineering Department, Bioengineering Department, California NanoSystems Institute (CNSI), Department of Physics & Astronomy, and Department of Chemistry and Biochemistry, University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - Richie Nagi
- Electrical Engineering Department, Bioengineering Department, California NanoSystems Institute (CNSI), Department of Physics & Astronomy, and Department of Chemistry and Biochemistry, University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - Kayvon Sadeghi
- Electrical Engineering Department, Bioengineering Department, California NanoSystems Institute (CNSI), Department of Physics & Astronomy, and Department of Chemistry and Biochemistry, University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - Steve Feng
- Electrical Engineering Department, Bioengineering Department, California NanoSystems Institute (CNSI), Department of Physics & Astronomy, and Department of Chemistry and Biochemistry, University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - Eddie Yan
- Electrical Engineering Department, Bioengineering Department, California NanoSystems Institute (CNSI), Department of Physics & Astronomy, and Department of Chemistry and Biochemistry, University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - So Jung Ki
- Electrical Engineering Department, Bioengineering Department, California NanoSystems Institute (CNSI), Department of Physics & Astronomy, and Department of Chemistry and Biochemistry, University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - Romain Caire
- Electrical Engineering Department, Bioengineering Department, California NanoSystems Institute (CNSI), Department of Physics & Astronomy, and Department of Chemistry and Biochemistry, University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - Derek Tseng
- Electrical Engineering Department, Bioengineering Department, California NanoSystems Institute (CNSI), Department of Physics & Astronomy, and Department of Chemistry and Biochemistry, University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - Aydogan Ozcan
- Electrical Engineering Department, Bioengineering Department, California NanoSystems Institute (CNSI), Department of Physics & Astronomy, and Department of Chemistry and Biochemistry, University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
- Address correspondence to
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128
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Bera K, Das AK, Nag M, Basak S. Development of a Rhodamine–Rhodanine-Based Fluorescent Mercury Sensor and Its Use to Monitor Real-Time Uptake and Distribution of Inorganic Mercury in Live Zebrafish Larvae. Anal Chem 2014; 86:2740-6. [DOI: 10.1021/ac404160v] [Citation(s) in RCA: 161] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Kallol Bera
- Chemical
Sciences Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
| | - Anand Kant Das
- Department
of Chemical Sciences, Tata Institute of Fundamental Research, Colaba, Mumbai 400005, India
| | - Moupriya Nag
- Chemical
Sciences Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
| | - Soumen Basak
- Chemical
Sciences Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
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129
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Silver Nanoparticles: Green Synthesis, Characterization, and Their Usage in Determination of Mercury Contamination in Seafoods. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/148184] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We demonstrate that silver nanoparticles undergo an interaction with Hg2+ found in traces. The PEG-PVP-stabilized Ag nanoparticles were successfully synthesized via a reduction approach and characterized with surface plasmon resonance UV/Vis spectroscopy. By utilizing the redox reaction between Ag nanoparticles and Hg2+, and the resulted decrease in UV/Vis signal, we develop a colorimetric method for detection of Hg2+ ion. A linear and inversely proportional relationship was found between the absorbance intensity of the Ag nanoparticles and the concentration of Hg2+ ion over the range from 10 ppm to 1 ppm at absorption on 411 nm. The detection limit for Hg2+ ions in homogeneous aqueous solutions is estimated to be 1 ppm. This system shows excellent selectivity for Hg2+. The results found have potential implications in the development of new colorimetric sensors for easy and selective detection and monitoring of mercuric ions in aqueous solutions. The proposed method was successfully applied to quantify the amount of mercury in seafood.
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130
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Lin D, Wu J, Ju H, Yan F. Nanogold/mesoporous carbon foam-mediated silver enhancement for graphene-enhanced electrochemical immunosensing of carcinoembryonic antigen. Biosens Bioelectron 2014; 52:153-8. [DOI: 10.1016/j.bios.2013.08.051] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 08/13/2013] [Accepted: 08/22/2013] [Indexed: 12/11/2022]
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131
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Lin S, He B, Shiu-Hin Chan D, Hong Chan PW, Leung CH, Ma DL. A G-quadruplex-based platform for the detection of Hg2+ ions using a luminescent iridium(iii) complex. RSC Adv 2014. [DOI: 10.1039/c4ra11240g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report herein the synthesis of a series of cyclometalated iridium(iii) complexes as luminescent G-quadruplex-selective probes, which were used to construct an oligonucleotide-based platform for the dual detection and removal of Hg2+ ions.
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Affiliation(s)
- Sheng Lin
- Department of Chemistry
- Hong Kong Baptist University
- Hong Kong, China
| | - Bingyong He
- Department of Chemistry
- Hong Kong Baptist University
- Hong Kong, China
| | | | - Philip Wai Hong Chan
- School of Chemistry
- Monash University
- , Australia
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao, China
| | - Dik-Lung Ma
- Department of Chemistry
- Hong Kong Baptist University
- Hong Kong, China
- Partner State Key Laboratory of Environmental and Biological Analysis
- Hong Kong Baptist University
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132
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Gao Y, Sun SL, Xu HL, Zhao L, Su ZM. N-Methylbenzoaza-18-crown-6-ether derivatives as efficient alkali metal cations sensors: the dipole moment and first hyperpolarizability. RSC Adv 2014. [DOI: 10.1039/c4ra02238f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
1-Li+, 1-Na+ and 1-K+ complexes formed by N-methylbenzoaza-18-crown-6-ether derivatives with one alkali metal cation were investigated. Their dipole moments and first hyperpolarizabilities take on opposite trends with increasing the atomic number.
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Affiliation(s)
- Ying Gao
- Institute of Functional Material Chemistry
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024, People's Republic of China
| | - Shi-Ling Sun
- Institute of Functional Material Chemistry
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024, People's Republic of China
| | - Hong-Liang Xu
- Institute of Functional Material Chemistry
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024, People's Republic of China
| | - Liang Zhao
- Institute of Functional Material Chemistry
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024, People's Republic of China
| | - Zhong-Min Su
- Institute of Functional Material Chemistry
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024, People's Republic of China
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133
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Heo JH, Cho HH, Lee JH. Surfactant-free nanoparticle–DNA complexes with ultrahigh stability against salt for environmental and biological sensing. Analyst 2014; 139:5936-44. [DOI: 10.1039/c4an01271b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A AuNP–DNA complex highly stable in extremely high ionic strength media, such as seawater, was obtained by inserting a few thymine bases into the DNA strands.
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Affiliation(s)
- Jun Hyuk Heo
- School of Advanced Materials Science and Engineering
- Sungkyunkwan University (SKKU)
- Suwon 440-476, Republic of Korea
| | - Hui Hun Cho
- SKKU Advanced Institute of Nanotechnology (SAINT)
- Sungkyunkwan University (SKKU)
- Suwon 440-476, Republic of Korea
| | - Jung Heon Lee
- School of Advanced Materials Science and Engineering
- Sungkyunkwan University (SKKU)
- Suwon 440-476, Republic of Korea
- SKKU Advanced Institute of Nanotechnology (SAINT)
- Sungkyunkwan University (SKKU)
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134
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Kumar DP. Synthesis of gold nanoparticles and nanoclusters in a supramolecular gel and their applications in catalytic reduction of p-nitrophenol to p-aminophenol and Hg(ii) sensing. RSC Adv 2014. [DOI: 10.1039/c4ra07532c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Seven gelator molecules giving supramolecular gels produced Au-nanoparticles and fluorescent, small Au-nanoclusters. Such Au-nanoparticle containing gels catalyzed the reduction of p-nitrophenol to p-aminophenol without NaBH4. The fluorescent Au-nanoclusters acted as a Hg(ii) sensor.
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Affiliation(s)
- Dhurjati Prasad Kumar
- Department of Organic Chemistry
- Indian Association for the Cultivation of Science, 2A & 2B
- Kolkata-700032, India
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135
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Zhu G, Li Y, Zhang CY. Simultaneous detection of mercury(ii) and silver(i) ions with picomolar sensitivity. Chem Commun (Camb) 2014; 50:572-4. [DOI: 10.1039/c3cc46884d] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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136
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Apyari VV, Arkhipova VV, Dmitrienko SG, Zolotov YA. Using gold nanoparticles in spectrophotometry. JOURNAL OF ANALYTICAL CHEMISTRY 2013. [DOI: 10.1134/s1061934814010031] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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137
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Xu F, Kou L, Jia J, Hou X, Long Z, Wang S. Metal–organic frameworks of zeolitic imidazolate framework-7 and zeolitic imidazolate framework-60 for fast mercury and methylmercury speciation analysis. Anal Chim Acta 2013; 804:240-5. [DOI: 10.1016/j.aca.2013.09.058] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 09/25/2013] [Accepted: 09/28/2013] [Indexed: 10/26/2022]
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138
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Nalawade P, Kapoor S. Gold nanoflowers based colorimetric detection of Hg2+ and Pb2+ ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 116:132-135. [PMID: 23933548 DOI: 10.1016/j.saa.2013.07.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 07/01/2013] [Accepted: 07/16/2013] [Indexed: 06/02/2023]
Abstract
An optical detection method based on the interaction of gold nanoflowers with Hg(2+) and Pb(2+) has been described. After interaction, gold nanoflowers change the color from violet to wine red. The nanoflowers are capable of determining Hg(2+) and Pb(2+) over a dynamic range of 1.0 × 10(-6) and 1.0 × 10(-5)M, respectively. The response time of nanoflowers depends on the concentration of ions. The presence of both Hg(2+) and Pb(2+) ions in the mixture having Au nanoflowers induced color changes of the solution within several seconds even at 1.0 × 10(-6)M. Common metal ions were chosen to investigate their interference in Hg(2+) and Pb(2+) detection, and the concentration of each metal ion studied was 1.0 × 10(-5)M. Other metallic ions could not induce color change even at 1.0 × 10(-5)M. The feasibility of our method to detect Hg(2+) and Pb(2+) ions at high concentration in real water samples was verified. Water samples were from our own laboratory and no pretreatment was made. As the particles are stable they can be used for more than 3 months without observing any major deviation.
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Affiliation(s)
- Pradnya Nalawade
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
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139
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Boyd GR, Tuccillo ME, Sandvig A, Pelaez M, Han C, Dionysiou DD. Nanomaterials: Removal processes and beneficial applications in treatment. ACTA ACUST UNITED AC 2013. [DOI: 10.5942/jawwa.2013.105.0154] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
| | | | | | | | - Changseok Han
- Environmental Engineering and Science Program; University of Cincinnati; Cincinnati Ohio
| | - Dionysios D. Dionysiou
- Environmental Engineering and Science Program; University of Cincinnati; Cincinnati Ohio
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140
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Domínguez-González R, González Varela L, Bermejo-Barrera P. Functionalized gold nanoparticles for the detection of arsenic in water. Talanta 2013; 118:262-9. [PMID: 24274297 DOI: 10.1016/j.talanta.2013.10.029] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 10/03/2013] [Accepted: 10/15/2013] [Indexed: 01/13/2023]
Abstract
Gold nanoparticles are attractive as sensing materials because of their size and shape are related with their optical properties. The color change produced by the aggregation of functionalized AuNPs allows the detection of arsenic at low levels. A simple, cheap and fast analytical procedure to perform arsenic determination using functionalized gold nanoparticles (AuNPs) and VIS spectrometry as a detection technique is studied. Three different synthesis procedures to obtain the AuNPs and two different functionalization modes were studied. AuNPs functionalized with GSH-DTT-CYs-PDCA were selected as the most adequate. The correlation between the decrease in the absorbance signal and the arsenic concentration was good in the 2-20 µg l(-1)interval. Repeatability, expressed as average of RSD (%), obtained for the different arsenic concentrations studied was 0.6%. The average value of the analytical recovery was 99.7%. The detection and quantifications limits were 2.5 and 8.4 µg l(-1) respectively. These limits are sufficient to detect World Health Organization's guideline value of 10 µg l(-1).
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Affiliation(s)
- R Domínguez-González
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, 15782 Santiago de Compostela, Spain
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141
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Long F, Zhu A, Shi H. Recent advances in optical biosensors for environmental monitoring and early warning. SENSORS (BASEL, SWITZERLAND) 2013; 13:13928-48. [PMID: 24132229 PMCID: PMC3859100 DOI: 10.3390/s131013928] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 09/20/2013] [Accepted: 10/05/2013] [Indexed: 01/30/2023]
Abstract
The growing number of pollutants requires the development of innovative analytical devices that are precise, sensitive, specific, rapid, and easy-to-use to meet the increasing demand for legislative actions on environmental pollution control and early warning. Optical biosensors, as a powerful alternative to conventional analytical techniques, enable the highly sensitive, real-time, and high-frequency monitoring of pollutants without extensive sample preparation. This article reviews important advances in functional biorecognition materials (e.g., enzymes, aptamers, DNAzymes, antibodies and whole cells) that facilitate the increasing application of optical biosensors. This work further examines the significant improvements in optical biosensor instrumentation and their environmental applications. Innovative developments of optical biosensors for environmental pollution control and early warning are also discussed.
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Affiliation(s)
- Feng Long
- School of Environment and Natural Resources, Renmin University of China, No.59, Zhongguancun Street, Haidian District, Beijing 100872, China
| | - Anna Zhu
- Research Institute of Chemical Defence, No.1, Huanyin Street, Changping District, Beijing 100872, China; E-Mail:
| | - Hanchang Shi
- State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, No.1, Tsinghua Yuan, Haidian District, Beijing 100872, China
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142
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Wang CW, Lin ZH, Roy P, Chang HT. Detection of mercury ions using silver telluride nanoparticles as a substrate and recognition element through surface-enhanced Raman scattering. Front Chem 2013; 1:20. [PMID: 24790948 PMCID: PMC3982518 DOI: 10.3389/fchem.2013.00020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 09/21/2013] [Indexed: 11/29/2022] Open
Abstract
In this paper we unveil a new sensing strategy for sensitive and selective detection of Hg2+ through surface-enhanced Raman scattering (SERS) using Ag2Te nanoparticles (NPs) as a substrate and recognition element and rhodamine 6G (R6G) as a reporter. Ag2Te NPs prepared from tellurium dioxide and silver nitrate and hydrazine in aqueous solution containing sodium dodecyl sulfate at 90°C with an average size of 26.8 ± 4.1 nm (100 counts) have strong SERS activity. The Ag2Te substrate provides strong SERS signals of R6G with an enhancement factor of 3.6 × 105 at 1360 cm−1, which is comparable to Ag NPs. After interaction of Ag2Te NPs with Hg2+, some HgTe NPs are formed, leading to decreases in the SERS signal of R6G, mainly because HgTe NPs relative to Ag2Te NPs have weaker SERS activity. Under optimum conditions, this SERS approach using Ag2Te as substrates is selective for the detection of Hg2+, with a limit of detection of 3 nM and linearity over 10–150 nM. The practicality of this approach has been validated for the determination of the concentrations of spiked Hg2+ in a pond water sample.
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Affiliation(s)
- Chia-Wei Wang
- Department of Chemistry, National Taiwan University Taipei, Taiwan
| | - Zong-Hong Lin
- Department of Chemistry, National Taiwan University Taipei, Taiwan
| | - Prathik Roy
- Department of Chemistry, National Taiwan University Taipei, Taiwan
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University Taipei, Taiwan
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143
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Weng Z, Wang H, Vongsvivut J, Li R, Glushenkov AM, He J, Chen Y, Barrow CJ, Yang W. Self-assembly of core-satellite gold nanoparticles for colorimetric detection of copper ions. Anal Chim Acta 2013; 803:128-34. [PMID: 24216206 DOI: 10.1016/j.aca.2013.09.036] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 09/11/2013] [Accepted: 09/18/2013] [Indexed: 11/27/2022]
Abstract
Molecule-coated nanoparticles are hybrid materials which can be engineered with novel properties. The molecular coating of metal nanoparticles can provide chemical functionality, enabling assembly of the nanoparticles that are important for applications, such as biosensing devices. Herein, we report a new self-assembly of core-satellite gold nanoparticles linked by a simple amino acid l-Cysteine for biosensing of Cu(2+). The plasmonic properties of core-satellite nano-assemblies were investigated, a new red shifted absorbance peak from about 600 to 800 nm was found, with specific wavelength depending on ratios with assembly of large and small gold nanoparticles. The spectral features obtained using surface-enhanced Raman spectroscopy (SERS) provided strong evidence for the assembly of the Cu(2+) ions to the L-Cysteine molecules leading to the successful formation of the core-satellite Cu(l-Cysteine) complex on the gold surfaces. In addition, a linear relationship between the concentration of mediating Cu(2+) and absorbance of self-assembled gold nanoparticles (GNPs) at 680 nm was obtained. These results strongly address the potential strategy for applying the functionalized GNPs as novel biosensing tools in trace detections of certain metal ions.
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Affiliation(s)
- Ziqing Weng
- Center for Chemistry and Biotechnology, School of Life and Environmental Sciences, Deakin University, Geelong, VIC 3216, Australia
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144
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Yang B, Zhang XB, Liu WN, Hu R, Tan W, Shen GL, Yu RQ. Fluorosurfactant-capped gold nanoparticles-based label-free colorimetric assay for Au3+ with tunable dynamic range via a redox strategy. Biosens Bioelectron 2013; 48:1-5. [DOI: 10.1016/j.bios.2013.03.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 03/15/2013] [Accepted: 03/15/2013] [Indexed: 12/01/2022]
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145
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Gold Nanotechnology for Targeted Detection and Killing of Multiple Drug Resistant Bacteria from Food Samples. ACTA ACUST UNITED AC 2013. [DOI: 10.1021/bk-2013-1143.ch001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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146
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A reusable and sensitive biosensor for total mercury in canned fish based on fluorescence polarization. Talanta 2013; 117:81-6. [PMID: 24209314 DOI: 10.1016/j.talanta.2013.08.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 08/12/2013] [Accepted: 08/14/2013] [Indexed: 11/21/2022]
Abstract
In this work, we developed a sensitive and selective sensor technique for total mercury (Hg) detection in canned fish samples based on the fluorescence polarization (FP) method. The detection principle was that ssDNA containing thymine (T) bases was modified on magnetic nanoparticles (MNPs), which were used as enhancement probe. In the presence of Hg(2+), the ssDNA on MNPs can hybridize with the fluorophore labeled aptamer owing to the specific interaction between T bases and Hg(2+). The formation of thymine-Hg(2+)-thymine (T-Hg(2+)-T) complexes leads to the molar mass increase of fluorophore molecules, resulting in the enhancement of FP signal. The increase of FP was in a good linearity with the concentration of Hg(2+) in range of 2.0 nM-1.0 mM and the limit of detection was 0.49 nM (3.29 SB/m, according to the recent recommendation of IUPAC). Moreover, the proposed biosensor can be reused for 6 cycling times and was successfully applied in monitoring Hg(2+) in real samples.
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147
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Jung JH, Jung SH, Lee JH, Choi MY. NTA-Functionalized Gold Nanoparticles for Visual Detection of Uranyl Ion. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.7.2183] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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148
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The role of magnetic nanoparticles in the localization and treatment of breast cancer. BIOMED RESEARCH INTERNATIONAL 2013; 2013:281230. [PMID: 23936784 PMCID: PMC3722907 DOI: 10.1155/2013/281230] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Accepted: 06/17/2013] [Indexed: 02/06/2023]
Abstract
The role of magnetic nanoparticles (MNPs) in medical applications is rapidly developing. Advances in nanotechnology are bringing us closer to the development of dual and multifunctional nanoparticles that are challenging the traditional distinction between diagnostic and treatment agents. The current use of MNPs in breast cancer falls into four main groups: (1) imaging of primary and metastatic disease, (2) sentinel lymph node biopsy (SLNB), (3) drug delivery systems, and (4) magnetic hyperthermia. The current evidence for the use of MNPs in these fields is mounting, and potential cutting-edge clinical applications, particularly with relevance to the fields of breast oncological surgery, are emerging.
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149
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Jiang C, Zhao T, Yuan P, Gao N, Pan Y, Guan Z, Zhou N, Xu QH. Two-photon induced photoluminescence and singlet oxygen generation from aggregated gold nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2013; 5:4972-7. [PMID: 23688198 DOI: 10.1021/am4007403] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Metal nanoparticles have potential applications as bioimaging and photosensitizing agents. Aggregation effects are generally believed to be adverse to their biomedical applications. Here we have studied the aggregation effects on two-photon induced photoluminescence and singlet oxygen generation of Au nanospheres and Au nanorods of two different aspect ratios. Aggregated Au nanospheres and short Au nanorods were found to display enhanced two-photon induced photoluminescence and singlet oxygen generation capabilities compared to the unaggregated ones. The two-photon photoluminescence of Au nanospheres and short Au nanorods were enhanced by up to 15.0- and 2.0-fold upon aggregation, and the corresponding two-photon induced singlet oxygen generation capabilities were enhanced by 8.3 and 1.8-fold, respectively. The two-photon induced photoluminescence and singlet oxygen generation of the aggregated long Au nanorods were found to be lower than the unaggregated ones. These results support that the change in their two-photon induced photoluminescence and singlet oxygen generation originate from aggregation modulated two-photon excitation efficiency. This finding is expected to foster more biomedical applications of metal nanoparticles as Au nanoparticles normally exist in an aggregated form in the biological environments. Considering their excellent biocompatibility, high inertness, ready conjugation, and easy preparation, Au nanoparticles are expected to find more applications in two-photon imaging and two-photon photodynamic therapy.
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Affiliation(s)
- Cuifeng Jiang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore
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Tomita K, Ishioka T, Harata A. Development of an anion probe: detection of sulfate ion by two-photon fluorescence of gold nanoparticles. ANAL SCI 2013; 28:1139-44. [PMID: 23232232 DOI: 10.2116/analsci.28.1139] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Anion-selective detection is demonstrated for sulfate ion in aqueous solutions by using two-photon excited fluorescence of gold nanoparticles (AuNPs) modified with a thiourea-based anion receptor, bis[2-(3-(4-nitrophenyl)thioureido)ethyl]disulfide. The fluorescent intensity increased with the change of the sulfate concentration in the solution from 10(-4) to 10(-3) M. In comparison with an unadsorbed receptor molecule in bulk acetonitrile solution, the molecule on AuNPs in water showed improved affinity for sulfate ion. The controllability of the hydrophobicity around receptor molecules on AuNPs is considered a dominant contributing factor for improved sulfate affinity. This unique feature of the surface enables us to detect anionic species in an aqueous phase where a dye-type indicator has poor sensitivity.
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Affiliation(s)
- Kentaro Tomita
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Fukuoka, Japan
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