101
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Xie J, Cao H, Jiang H, Chen Y, Shi W, Zheng H, Huang Y. Co3O4-reduced graphene oxide nanocomposite as an effective peroxidase mimetic and its application in visual biosensing of glucose. Anal Chim Acta 2013; 796:92-100. [DOI: 10.1016/j.aca.2013.08.008] [Citation(s) in RCA: 157] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 08/02/2013] [Indexed: 11/28/2022]
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102
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Bai J, Jiang X. A Facile One-Pot Synthesis of Copper Sulfide-Decorated Reduced Graphene Oxide Composites for Enhanced Detecting of H2O2 in Biological Environments. Anal Chem 2013; 85:8095-101. [DOI: 10.1021/ac400659u] [Citation(s) in RCA: 239] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jing Bai
- State Key Lab of Electroanalytical
Chemistry, Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 Jilin, China
| | - Xiue Jiang
- State Key Lab of Electroanalytical
Chemistry, Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 Jilin, China
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103
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Li Y, Huang H, Shi F, Li Y, Su X. Optical choline sensor based on a water-soluble fluorescent conjugated polymer and an enzyme-coupled assay. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1027-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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104
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Wang X, Qin W. Tetra(p-tolyl)borate-functionalized solvent polymeric membrane: a facile and sensitive sensing platform for peroxidase and peroxidase mimetics. Chemistry 2013; 19:9979-86. [PMID: 23852960 DOI: 10.1002/chem.201300284] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 04/28/2013] [Indexed: 01/27/2023]
Abstract
The determination of peroxidase activities is the basis for enzyme-labeled bioaffinity assays, peroxidase-mimicking DNAzymes- and nanoparticles-based assays, and characterization of the catalytic functions of peroxidase mimetics. Here, a facile, sensitive, and cost-effective solvent polymeric membrane-based peroxidase detection platform is described that utilizes reaction intermediates with different pKa values from those of substrates and final products. Several key but long-debated intermediates in the peroxidative oxidation of o-phenylenediamine (o-PD) have been identified and their charge states have been estimated. By using a solvent polymeric membrane functionalized by an appropriate substituted tetraphenylborate as a receptor, those cationic intermediates could be transferred into the membrane from the aqueous phase to induce a large cationic potential response. Thus, the potentiometric indication of the o-PD oxidation catalyzed by peroxidase or its mimetics can be fulfilled. Horseradish peroxidase has been detected with a detection limit at least two orders of magnitude lower than those obtained by spectrophotometric techniques and traditional membrane-based methods. As an example of peroxidase mimetics, G-quadruplex DNAzymes were probed by the intermediate-sensitive membrane and a label-free thrombin detection protocol was developed based on the catalytic activity of the thrombin-binding G-quadruplex aptamer.
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Affiliation(s)
- Xuewei Wang
- Key Laboratory of Coastal Zone, Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), YICCAS, Yantai Shandong 264003, PR China
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105
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Li CL, Huang CC, Chen WH, Chiang CK, Chang HT. Peroxidase mimicking DNA-gold nanoparticles for fluorescence detection of the lead ions in blood. Analyst 2013; 137:5222-8. [PMID: 23032966 DOI: 10.1039/c2an35599j] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oligonucleotide (T30695) modified gold nanoparticles (T30695-Au NPs) have been prepared and employed for quantification of lead ions (Pb(2+)) in blood. The detection of Pb(2+) ions is through the formation of Au-Pb alloys and oligonucleotide-Pb(2+) complexes that catalyze the H(2)O(2)-mediated oxidation of non-fluorescent Amplex UltraRed (AUR) to form a highly fluorescent oxidized AUR product. Surface-assisted laser desorption/ionization time-of-flight mass spectrometry (SALDI-TOF MS) and inductively coupled plasma mass spectrometry (ICP-MS) revealed the formation of Au-Pb alloys on the surfaces of the 40T30695-Au NPs (i.e., the system featuring 40 molecules of T30695 per Au NP) in the presence of Pb(2+) ions, leading to increased catalytic activity for the H(2)O(2)-mediated oxidation of AUR. The fluorescence intensity (excitation/emission maxima: ca. 540/584 nm) of the oxidized AUR product is proportional to the concentration of Pb(2+) ions over the range 0.1-100 nM, with a linear correlation (R(2) = 0.99). The 40T30695-Au NP/AUR probe is highly selective toward Pb(2+) ions (by at least 200-fold over other tested metal ions). The 40T30695-Au NPs/AUR probe provided limits of detection (LOD, at a signal-to-noise ratio 3) for Pb(2+) ions of 0.05 and 0.1 nM, in Tris-acetate solution (5 mM, pH 8.0) without and with salt (150 mM NaCl, 5 mM KCl, 1 mM MgCl(2), and 1 mM CaCl(2)), respectively. Without conducting tedious sample pretreatment, the approach allows detection of Pb(2+) ions in blood samples, showing the potential of the 40T30695-Au NPs/AUR assay for on-site and real-time detection of Pb(2+) ions in biological samples.
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Affiliation(s)
- Chi-Lin Li
- Department of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan
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106
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Chan CPY, Mak WC, Cheung KY, Sin KK, Yu CM, Rainer TH, Renneberg R. Evidence-based point-of-care diagnostics: current status and emerging technologies. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2013; 6:191-211. [PMID: 23527548 DOI: 10.1146/annurev-anchem-062012-092641] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Point-of-care (POC) diagnostics brings tests nearer to the site of patient care. The turnaround time is short, and minimal manual interference enables quick clinical management decisions. Growth in POC diagnostics is being continuously fueled by the global burden of cardiovascular and infectious diseases. Early diagnosis and rapid initiation of treatment are crucial in the management of such patients. This review provides the rationale for the use of POC tests in acute coronary syndrome, heart failure, human immunodeficiency virus, and tuberculosis. We also consider emerging technologies that are based on advanced nanomaterials and microfluidics, improved assay sensitivity, miniaturization in device design, reduced costs, and high-throughput multiplex detection, all of which may shape the future development of POC diagnostics.
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Affiliation(s)
- Cangel Pui Yee Chan
- Accident and Emergency Medicine Academic Unit, Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR
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107
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Xing HB, Wu YG, Zhan SS, Zhou P. A Rapid Colorimetric Detection of Melamine in Raw Milk by Unmodified Gold Nanoparticles. FOOD ANAL METHOD 2013. [DOI: 10.1007/s12161-013-9562-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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108
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CuS nanoparticles as a mimic peroxidase for colorimetric estimation of human blood glucose level. Talanta 2013; 107:361-7. [DOI: 10.1016/j.talanta.2013.01.032] [Citation(s) in RCA: 141] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 01/17/2013] [Accepted: 01/18/2013] [Indexed: 11/22/2022]
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109
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Ma M, Zhang Y, Guo Z, Gu N. Facile synthesis of ultrathin magnetic iron oxide nanoplates by Schikorr reaction. NANOSCALE RESEARCH LETTERS 2013; 8:16. [PMID: 23294626 PMCID: PMC3598988 DOI: 10.1186/1556-276x-8-16] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 12/14/2012] [Indexed: 05/30/2023]
Abstract
In this work, a very facile one-pot hydrothermal synthesis approach has been developed for the preparation of ultrathin magnetite nanoplates. The hydrothermal procedure was performed by aging ferrous hydroxide under anaerobic conditions, which is known as Schikorr reaction. Ethylene glycol (EG), which was introduced to the reaction as another solvent, played a critical role in the formation process of these nanoplates. Typically, hexagonal Fe3O4 nanoplates with a thickness of 10 to 15 nm and a side length of 150 to 200 nm have been synthesized with EG/H2O = 1:1 in experiments. Our data suggest that the thickness of Fe3O4 nanoplates decreases, and the shape of the nanoplate becomes more irregular when the concentration of EG increases. The as-prepared Fe3O4 nanoplates were highly crystallized single crystals and exhibited large coercivity and specific absorption rate coefficient.
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Affiliation(s)
- Ming Ma
- State Key Laboratory of Bioelectronics and Jiangsu Key Laboratory of Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210009, People’s Republic of China
| | - Yu Zhang
- State Key Laboratory of Bioelectronics and Jiangsu Key Laboratory of Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210009, People’s Republic of China
| | - Zhirui Guo
- The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, People’s Republic of China
| | - Ning Gu
- State Key Laboratory of Bioelectronics and Jiangsu Key Laboratory of Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210009, People’s Republic of China
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110
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Wei H, Wang E. Nanomaterials with enzyme-like characteristics (nanozymes): next-generation artificial enzymes. Chem Soc Rev 2013; 42:6060-93. [DOI: 10.1039/c3cs35486e] [Citation(s) in RCA: 2267] [Impact Index Per Article: 206.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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111
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Maiyalagan T, Sundaramurthy J, Kumar PS, Kannan P, Opallo M, Ramakrishna S. Nanostructured α-Fe2O3 platform for the electrochemical sensing of folic acid. Analyst 2013; 138:1779-86. [DOI: 10.1039/c3an00070b] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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112
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Xing H, Zhan S, Wu Y, He L, Zhou P. Sensitive colorimetric detection of melamine in milk with an aptamer-modified nanogold probe. RSC Adv 2013. [DOI: 10.1039/c3ra42138d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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113
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Ma Y, Jiang L, Mei Y, Song R, Tian D, Huang H. Colorimetric sensing strategy for mercury(ii) and melamine utilizing cysteamine-modified gold nanoparticles. Analyst 2013; 138:5338-43. [DOI: 10.1039/c3an00690e] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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114
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Pang S, Gao Y, Li Y, Liu S, Su X. A novel sensing strategy for the detection of Staphylococcus aureus DNA by using a graphene oxide-based fluorescent probe. Analyst 2013; 138:2749-54. [DOI: 10.1039/c3an36642a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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115
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Charge–transfer interaction between melamine and quinones: Towards voltammetric determination of melamine. Electrochem commun 2013. [DOI: 10.1016/j.elecom.2012.10.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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116
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Zhang J, Yang C, Chen C, Yang X. Determination of nitrite and glucose in water and human urine with light-up chromogenic response based on the expeditious oxidation of 3,3′,5,5′-tetramethylbenzidine by peroxynitrous acid. Analyst 2013; 138:2398-404. [DOI: 10.1039/c3an00080j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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117
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Liu S, Hu J, Zhang H, Su X. CuInS2 quantum dots-based fluorescence turn off/on probe for detection of melamine. Talanta 2012; 101:368-73. [DOI: 10.1016/j.talanta.2012.09.043] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 09/20/2012] [Accepted: 09/22/2012] [Indexed: 10/27/2022]
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118
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Gu H, Tadakamalla S, Huang Y, Colorado HA, Luo Z, Haldolaarachchige N, Young DP, Wei S, Guo Z. Polyaniline stabilized magnetite nanoparticle reinforced epoxy nanocomposites. ACS APPLIED MATERIALS & INTERFACES 2012; 4:5613-24. [PMID: 22985210 DOI: 10.1021/am301529t] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Magnetic epoxy polymer nanocomposites (PNCs) reinforced with magnetite (Fe(3)O(4)) nanoparticles (NPs) have been prepared at different particle loading levels. The particle surface functionality tuned by conductive polyaniline (PANI) is achieved via a surface initiated polymerization (SIP) approach. The effects of nanoparticle loading, surface functionality, and temperature on both the viscosity and storage/loss modulus of liquid epoxy resin suspensions and the physicochemical properties of the cured solid PNCs are systematically investigated. The glass transition temperature (T(g)) of the cured epoxy filled with the functionalized NPs has shifted to the higher temperature in the dynamic mechanical analysis (DMA) compared with that of the cured pure epoxy. Enhanced mechanical properties of the cured epoxy PNCs filled with the functionalized NPs are observed in the tensile test compared with that of the cured pure epoxy and cured epoxy PNCs filled with as-received NPs. The uniform NP distribution in the cured epoxy PNCs filled with functionalized NPs is observed by scanning electron microscope (SEM). These magnetic epoxy PNCs show the good magnetic properties and can be attached by a permanent magnet. Enhanced interfacial interaction between NPs and epoxy is revealed in the fracture surface analysis. The PNCs formation mechanism is also interpreted from the comprehensive analysis based on the TGA, DSC, and FTIR in this work.
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Affiliation(s)
- Hongbo Gu
- Integrated Composites Lab (ICL), Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, Texas 77710, USA
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119
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Xie J, Zhang X, Wang H, Zheng H, Huang Y, Xie J. Analytical and environmental applications of nanoparticles as enzyme mimetics. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2012.03.021] [Citation(s) in RCA: 183] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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120
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Wang GL, Zhu XY, Jiao HJ, Dong YM, Wu XM, Li ZJ. “Oxidative etching-aggregation” of silver nanoparticles by melamine and electron acceptors: An innovative route toward ultrasensitive and versatile functional colorimetric sensors. Anal Chim Acta 2012; 747:92-8. [DOI: 10.1016/j.aca.2012.08.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 08/11/2012] [Accepted: 08/16/2012] [Indexed: 10/28/2022]
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121
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Li J, Kuang D, Feng Y, Zhang F, Xu Z, Liu M. A Novel Electrochemical Method for Sensitive Detection of Melamine in Infant Formula and Milk using Ascorbic Acid as Recognition Element. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.8.2499] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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122
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Sangeetha J, Philip J. The interaction, stability and response to an external stimulus of iron oxide nanoparticle–casein nanocomplexes. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.04.049] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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123
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Su L, Feng J, Zhou X, Ren C, Li H, Chen X. Colorimetric Detection of Urine Glucose Based ZnFe2O4 Magnetic Nanoparticles. Anal Chem 2012; 84:5753-8. [DOI: 10.1021/ac300939z] [Citation(s) in RCA: 403] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Li Su
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou
730000, China
- Department
of Chemistry, Lanzhou University, Lanzhou
730000, China
| | - Jie Feng
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou
730000, China
- Department
of Chemistry, Lanzhou University, Lanzhou
730000, China
| | - Ximin Zhou
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou
730000, China
- Department
of Chemistry, Lanzhou University, Lanzhou
730000, China
| | - Cuiling Ren
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou
730000, China
- Department
of Chemistry, Lanzhou University, Lanzhou
730000, China
| | - Honghong Li
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou
730000, China
- Department
of Chemistry, Lanzhou University, Lanzhou
730000, China
| | - Xingguo Chen
- State Key Laboratory of Applied Organic
Chemistry, Lanzhou University, Lanzhou
730000, China
- Department
of Chemistry, Lanzhou University, Lanzhou
730000, China
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou 730000, China
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124
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Wang GL, Jiao HJ, Zhu XY, Dong YM, Li ZJ. Enhanced fluorescence sensing of melamine based on thioglycolic acid-capped CdS quantum dots. Talanta 2012; 93:398-403. [DOI: 10.1016/j.talanta.2012.02.062] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2011] [Revised: 02/23/2012] [Accepted: 02/25/2012] [Indexed: 11/26/2022]
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125
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Han S, Zhu S, Liu Z, Hu L, Parveen S, Xu G. Oligonucleotide-stabilized fluorescent silver nanoclusters for turn-on detection of melamine. Biosens Bioelectron 2012; 36:267-70. [PMID: 22575638 DOI: 10.1016/j.bios.2012.04.028] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 02/11/2012] [Accepted: 04/16/2012] [Indexed: 11/29/2022]
Abstract
Fluorescence nanoclusters have been used for the determination of melamine for the first time. The method is based on the fluorescence turn-on of oligonucleotide-stabilized silver nanoclusters (DNA-Ag NCs) by melamine. The enhancement factors (I-I(0))/I(0) increase linearly with melamine concentrations over the range 5.0×10(-8)-7.0×10(-6) M (R(2)=0.998). The detection limit is 1.0×10(-8) M, which is approximately 2000 times lower than the US Food and Drug Administration estimated melamine safety limit of 20.0 μM. Furthermore, the milk samples spiked with melamine are analyzed with excellent recoveries.
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Affiliation(s)
- Shuang Han
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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126
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Wang S, Chen W, Liu AL, Hong L, Deng HH, Lin XH. Comparison of the Peroxidase-Like Activity of Unmodified, Amino-Modified, and Citrate-Capped Gold Nanoparticles. Chemphyschem 2012; 13:1199-204. [DOI: 10.1002/cphc.201100906] [Citation(s) in RCA: 219] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2012] [Revised: 01/19/2012] [Indexed: 11/10/2022]
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127
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Puvvada N, Panigrahi PK, Mandal D, Pathak A. Shape dependent peroxidase mimetic activity towards oxidation of pyrogallol by H2O2. RSC Adv 2012. [DOI: 10.1039/c2ra01081j] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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128
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Zou WS, Yang J, Yang TT, Hu X, Lian HZ. Magnetic-room temperature phosphorescent multifunctional nanocomposites as chemosensor for detection and photo-driven enzyme mimetics for degradation of 2,4,6-trinitrotoluene. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15139a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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129
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Chen W, Chen J, Feng YB, Hong L, Chen QY, Wu LF, Lin XH, Xia XH. Peroxidase-like activity of water-soluble cupric oxide nanoparticles and its analytical application for detection of hydrogen peroxide and glucose. Analyst 2012; 137:1706-12. [DOI: 10.1039/c2an35072f] [Citation(s) in RCA: 258] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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130
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Tian J, Liu S, Luo Y, Sun X. Fe(iii)-based coordination polymernanoparticles: peroxidase-like catalytic activity and their application to hydrogen peroxide and glucose detection. Catal Sci Technol 2012. [DOI: 10.1039/c1cy00360g] [Citation(s) in RCA: 66] [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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131
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Lin X, Ji G, Liu Y, Huang Q, Yang Z, Du Y. Formation mechanism and magnetic properties of hollow Fe3O4 nanospheres synthesized without any surfactant. CrystEngComm 2012. [DOI: 10.1039/c2ce26296g] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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132
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Tang Q, Nie YT, Gong CB, Chow CF, Peng JD, Hon-Wah Lam M. Photo-responsive molecularly imprinted hydrogels for the detection of melamine in aqueous media. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm34522f] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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133
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Ma Y, Zhang Z, Ren C, Liu G, Chen X. A novel colorimetric determination of reduced glutathione in A549 cells based on Fe3O4 magnetic nanoparticles as peroxidase mimetics. Analyst 2012; 137:485-9. [DOI: 10.1039/c1an15718c] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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134
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Zhang† M, Ping† H, Cao X, Li H, Guan F, Sun C, Liu J. Rapid determination of melamine in milk using water-soluble CdTe quantum dots as fluorescence probes. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2011; 29:333-44. [DOI: 10.1080/19440049.2011.643459] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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135
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Song Y, Wei W, Qu X. Colorimetric biosensing using smart materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2011; 23:4215-36. [PMID: 21800383 DOI: 10.1002/adma.201101853] [Citation(s) in RCA: 431] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Indexed: 05/20/2023]
Abstract
In recent years, colorimetric biosensing has attracted much attention because of its low cost, simplicity, and practicality. Since color changes can be read out by the naked eye, colorimetric biosensing does not require expensive or sophisticated instrumentation and may be applied to field analysis and point-of-care diagnosis. For transformation of the detection events into color changes, a number of smart materials have been developed, including gold nanoparticles, magnetic nanoparticles, cerium oxide nanoparticles, carbon nanotubes, graphene oxide, and conjugated polymers. Here, we focus on recent developments in colorimetric biosensing using these smart materials. Along with introducing the mechanisms of color changes based on different smart materials, we concentrate on the design of biosensing assays and their potential applications in biomedical diagnosis and environmental monitoring.
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Affiliation(s)
- Yujun Song
- Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization, Laboratory of Chemical Biology, Changchun, Jilin 130022, China
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136
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Oxidase-functionalized Fe3O4 nanoparticles for fluorescence sensing of specific substrate. Anal Chim Acta 2011; 703:87-93. [DOI: 10.1016/j.aca.2011.07.020] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 06/29/2011] [Accepted: 07/13/2011] [Indexed: 11/17/2022]
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137
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Liao CW, Chen YR, Chang JL, Zen JM. Single-run electrochemical determination of melamine in dairy products and pet foods. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:9782-9787. [PMID: 21846142 DOI: 10.1021/jf201989f] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A simple electrochemical approach, which does not require any expensive and complex instruments, is established for the selective and quantitative recognition of melamine in diary products and pet foods. During a preconcentration step (at 1.8 V versus Ag/AgCl), the formation of a polymer film from melamine on a preanodized screen-printed carbon electrode was identified by SEM and XPS. The as-formed polymer was found to be electroactive with a reversible redox peak, and hence square-wave voltammetry was applied to further increase the detection sensitivity to meet the detection limit for application in real sample analysis. Simply with a medium exchange procedure, melamine was selectively detected with a detection limit (S/N=3) of 0.8 μM (i.e., 98.3 ppb) by square-wave voltammetry. Lower than 1 ppm of melamine in real samples can be easily detected with good recoveries of 98.7-100.9% by the proposed approach. The recovery tests established for external calibration and standard addition techniques verified that the analysis can be done in a single-run measurement.
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Affiliation(s)
- Chen-Wei Liao
- Department of Chemistry, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 402, Taiwan
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138
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Cao X, Wang N. A novel non-enzymatic glucose sensor modified with Fe2O3 nanowire arrays. Analyst 2011; 136:4241-6. [PMID: 21874198 DOI: 10.1039/c1an15367f] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Fe(2)O(3) was generally considered to be biologically and electrochemically inert, and its electrocatalytic functionality has been rarely realized directly in the past. In this work, Fe(2)O(3) nanowire arrays were synthesized and electrochemically characterized. The as prepared Fe(2)O(3) nanomaterial was proved to be an ideal electrode material due to the intrinsic peroxidase-like catalytic activity. The Fe(2)O(3) nanowire array modified glucose sensor exhibited excellent biocatalytic performance towards the oxidation of glucose with a response time of <6 s, a linear range between 0.015-8 mM, and sensitivity of 726.9 μA mM(-1)cm(-1). Additionally, a high sensing selectivity towards glucose oxidation in the presence of ascorbic acid (AA) and dopamine (DA) has also been obtained at their maximum physiological concentrations, which makes the Fe(2)O(3) nanomaterial promising for the development of effective electrochemical sensors for practical applications.
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Affiliation(s)
- Xia Cao
- School of Biochemical and Pharmaceutical Sciences, Capital Medical University, Beijing, 100069, China
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139
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Development of a Specifically Enhanced Enzyme-Linked Immunosorbent Assay for the Detection of Melamine in Milk. Molecules 2011. [PMCID: PMC6264244 DOI: 10.3390/molecules16075591] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
An indirect competitive enzyme-linked immunosorbent assay (icELISA) with enhanced specificity for melamine in milk was developed. Three haptens of melamine with different spacer-arms were used to prepare different plate coating antigens. It was found that the icELISA show best sensitivity and specificity to melamine when using the coating antigen prepared by coupling 3-(4,6-diamino-1,6-dihydro-1,3,5-triazin-2-ylthio)propanoic acid (Hapten C) with ovalbumin (OVA). The 50% inhibitory concentration (IC50) value was 35.4 ng·mL−1, the limit of detection (LOD) was 8.9 ng·mL−1 and the detectable working range (20–80% inhibitory concentration) was from 14.9 to 108.5 ng·mL−1, respectively. Compared to the ELISA results previously reported, the developed icELISA in the present study showed a much lower cross-reactivity to cyromazine, a fly-killing insecticide widely used in vegetables and stables. Recoveries obtained from milk samples in this study were in agreement with those obtained using the HPLC-MS method, indicating the detection performance of the icELISA could meet the requirement of the residue limit set by the Codex Alimentarius Commission. Therefore, the developed immunoassay can be applied for the analysis of melamine presented in milk.
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140
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Shen HY, Liu YQ, Gao J, Zhen HM, Zhu N, Li J. In VitroStudy of DNA Interaction with Melamine and Its Related Compounds. DNA Cell Biol 2011; 30:255-64. [DOI: 10.1089/dna.2010.1095] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Hao-Yu Shen
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
| | - Yang-Qing Liu
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
| | - Jing Gao
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
| | - Hui-Min Zhen
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
| | - Ning Zhu
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
| | - Jia Li
- Biological and Chemical Engineering School, Ningbo Institute of Technology, Zhejiang University, Ningbo, China
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141
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Yang C, Wu J, Hou Y. Fe3O4 nanostructures: synthesis, growth mechanism, properties and applications. Chem Commun (Camb) 2011; 47:5130-41. [PMID: 21384025 DOI: 10.1039/c0cc05862a] [Citation(s) in RCA: 251] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Recent progress in research on Fe(3)O(4) nanocrystals has attracted much attention both for investigating fundamental nanomagnetism and their potential applications in nanocatalysis, biosensing, magnetic resonance imaging (MRI) contrast agents and drug delivery. In this feature article, we provide an overview of synthetic strategies and growth mechanisms of various Fe(3)O(4) nanostructures, discuss the uniqueness of associated properties, and illustrate their potential applications.
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Affiliation(s)
- Ce Yang
- Department of Advanced Materials and Nanotechnology, College of Engineering, Peking University, Beijing 100871, China
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142
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Ma Y, Niu H, Zhang X, Cai Y. One-step synthesis of silver/dopamine nanoparticles and visual detection of melamine in raw milk. Analyst 2011; 136:4192-6. [DOI: 10.1039/c1an15327g] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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143
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Beveridge JS, Stephens JR, Williams ME. The use of magnetic nanoparticles in analytical chemistry. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2011; 4:251-73. [PMID: 21417723 DOI: 10.1146/annurev-anchem-061010-114041] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Magnetic nanoparticles uniquely combine superparamagnetic behavior with dimensions that are smaller than or the same size as molecular analytes. The integration of magnetic nanoparticles with analytical methods has opened new avenues for sensing, purification, and quantitative analysis. Applied magnetic fields can be used to control the motion and properties of magnetic nanoparticles; in analytical chemistry, use of magnetic fields provides methods for manipulating and analyzing species at the molecular level. In this review, we describe applications of magnetic nanoparticles to analyte handling, chemical sensors, and imaging techniques.
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Affiliation(s)
- Jacob S Beveridge
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16803, USA.
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144
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Guo L, Zhong J, Wu J, Fu F, Chen G, Chen Y, Zheng X, Lin S. Sensitive turn-on fluorescent detection of melamine based on fluorescence resonance energy transfer. Analyst 2011; 136:1659-63. [DOI: 10.1039/c0an00675k] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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145
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Liu S, Tian J, Wang L, Luo Y, Chang G, Sun X. Iron-substituted SBA-15 microparticles: a peroxidase-like catalyst for H2O2 detection. Analyst 2011; 136:4894-7. [DOI: 10.1039/c1an15654c] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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146
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Bera RK, Raj CR. Naked eye sensing of melamine using rationally tailored gold nanoparticles: hydrogen-bonding and charge-transfer recognition. Analyst 2011; 136:1644-8. [DOI: 10.1039/c0an00870b] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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147
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Shen JS, Cai QG, Jiang YB, Zhang HW. Anion-triggered melamine based self-assembly and hydrogel. Chem Commun (Camb) 2010; 46:6786-8. [DOI: 10.1039/c0cc02030c] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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