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Das C, Patel VD, Gupta D, Mahata P. Isolation of a Cd-Based Coordination Polymer Containing Mixed Ligands: Time- and Temperature-Dependent Synthesis, Sulfonamide Antibiotics Detection, and Schottky Diode Fabrication. Inorg Chem 2024; 63:3656-3666. [PMID: 38344834 DOI: 10.1021/acs.inorgchem.3c03086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
In this study, we present a new cadmium(II)-based two-dimensional coordination polymer [Cd (L)(NA)(H2O)] (L = Iminol form of N-nicotinoyl glycinate, NA = nicotinate), 1, containing two linkers generated from N-nicotinoyl glycine. A comprehensive investigation was carried out during the synthesis of the coordination polymers by varying the reaction time interval and temperature, and it revealed the formation of three distinct phases, of which two phases were previously reported and one was a new compound (1). The structure of compound 1 was determined by single-crystal X-ray diffraction, and it shows a corrugated layer structure with hydrogen bond interactions leading to three-dimensional supramolecular arrangements. Compound 1 exhibited strong emission at 420 nm when excited at 260 nm in an aqueous medium. The emission behavior of this compound was used for the detection of various sulfonamide antibiotics, sulfadiazine, sulfamethazine, sulfachloropyridazine, sulfameter, sulfaquinoxaline, and sulfathiazole, in the presence of common water pollutants. The luminescence quenching response of compound 1 to sulfonamide antibiotics was significant, ranging from 81 to 94%, and the detection sensitivity reached parts per billion (ppb) levels (226-726 ppb). Compound 1 also used for the fabrication of Schottky diode devices with a barrier height of 0.86 eV along with an excellent ideality factor of 1.24.
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Affiliation(s)
- Chhatan Das
- Department of Chemistry, Jadavpur University, Jadavpur, Kolkata 700 032, West Bengal, India
| | - Vishwas D Patel
- Department of Physics, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Dhritiman Gupta
- Department of Physics, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Partha Mahata
- Department of Chemistry, Jadavpur University, Jadavpur, Kolkata 700 032, West Bengal, India
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2
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Jing J, Liu K, Jiang J, Xu T, Xiao L, Zhan X, Liu T. Optimally Configured Optical Fiber Near-Field Enhanced Plasmonic Resonance Immunoprobe for the Detection of Alpha-Fetoprotein. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207437. [PMID: 36995031 DOI: 10.1002/advs.202207437] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/20/2023] [Indexed: 05/27/2023]
Abstract
The detection of trace biomarkers is an important supplementary approach for early screening and diagnoses of tumors. An optical fiber near-field enhanced plasmonic resonance immunoprobe is developed for the detection of the hepatocellular carcinoma biomarker, i.e., the alpha-fetoprotein. Generic principles based on dispersion models and finite element analysis (FEA) models are developed to realize the optimized configuration of spectral characteristics of the immunoprobe. Dispersion models provide theoretical guidance for the design of the multilayer sensing structure from the perspective of the ray optics theory. FEA models provide theoretical guidance for the selection of coating materials from the perspective of the self-defined dielectric constant ratio, i.e., the ratio of the real part to the imaginary part. The optimized configuration of the antibody coupling further improves the biosensing performance of the immunoprobe. The limit of detection (LOD) can reach down to 0.01 ng mL-1 , which is one order of magnitude lower than those relevant reported works. Such a low LOD can more effectively avoid the accuracy degradation of detection results due to measurement errors. Human serum samples have also been detected, with the good precision achieved. This work shows promising prospects in applications of label-free, low-cost, rapid, and convenient early screening of tumors.
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Affiliation(s)
- Jianying Jing
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
| | - Kun Liu
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
| | - Junfeng Jiang
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
| | - Tianhua Xu
- School of Engineering, University of Warwick, Coventry, CV4 7AL, UK
| | - Lu Xiao
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
| | - Xiaohan Zhan
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
| | - Tiegen Liu
- School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China
- Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin, 300072, China
- Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing, Tianjin University, Tianjin, 300072, China
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3
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Çelik O, Saylan Y, Göktürk I, Yılmaz F, Denizli A. A surface plasmon resonance sensor with synthetic receptors decorated on graphene oxide for selective detection of benzylpenicillin. Talanta 2023; 253:123939. [PMID: 36152604 DOI: 10.1016/j.talanta.2022.123939] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/08/2022] [Accepted: 09/11/2022] [Indexed: 12/13/2022]
Abstract
Antibiotic residues in foods, water and the environment reveal antibiotic-resistant bacterial strains, disrupting the ecological balance and causing serious health problems. For these reasons, the detection of antibiotic residues is crucial for the protection of human health. Herein, the detection of benzylpenicillin antibiotic from aqueous and milk sample solutions was carried out by surface plasmon resonance (SPR) sensor using synthetic receptor-molecularly imprinted polymer. The benzylpenicillin-imprinted poly(hydroxyethyl methacrylate-graphene oxide-N-methacryloyl-l-phenylalanine) (MIP-GO) SPR sensor was prepared. Benzylpenicillin detection was performed by MIP-GO SPR sensor in a 1-100 ppb concentration range of benzylpenicillin with 0.9665 linear correlation and 0.021 ppb detection limit. Selectivity analysis showed that the MIP-GO SPR sensor detected the benzylpenicillin molecule 8.16 times more selectively than amoxicillin and 14.04 times more selectively than ampicillin. To examine the imprinting efficiency, non-imprinted poly(hydroxyethyl methacrylate-graphene oxide-N-methacryloyl-l-phenylalanine) (NIP-GO) SPR sensor was also prepared using the same procedure without benzylpenicillin addition. Since graphene oxide (GO) was added to enhance the sensor signal response by increasing sensitivity, the control analyses were performed by a poly(hydroxyethyl methacrylate-N-methacryloyl-l-phenylalanine) (MIP) SPR sensor without adding GO. Moreover, repeatability studies of MIP-GO SPR sensor were statistically evaluated and the RSD of intra-day assays less than 1% specified that there was no loss of performance for the benzylpenicillin detection ability even after four cycles. As a real food sample analysis, the benzylpenicillin spiked and unspiked milk samples were evaluated and high-performance liquid chromatography experiments were carried out for validation.
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Affiliation(s)
- Onur Çelik
- Hacettepe University, Department of Chemistry, Ankara, Turkey
| | - Yeşeren Saylan
- Hacettepe University, Department of Chemistry, Ankara, Turkey
| | - Ilgım Göktürk
- Hacettepe University, Department of Chemistry, Ankara, Turkey
| | - Fatma Yılmaz
- Bolu Abant Izzet Baysal University, Department of Chemistry Technology, Bolu, Turkey
| | - Adil Denizli
- Hacettepe University, Department of Chemistry, Ankara, Turkey.
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Pan Y, Yang H, Wen K, Ke Y, Shen J, Wang Z. Current advances in immunoassays for quinolones in food and environmental samples. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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5
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Zeng Y, Chang F, Liu Q, Duan L, Li D, Zhang H. Recent Advances and Perspectives on the Sources and Detection of Antibiotics in Aquatic Environments. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2022; 2022:5091181. [PMID: 35663459 PMCID: PMC9159860 DOI: 10.1155/2022/5091181] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/07/2022] [Accepted: 04/25/2022] [Indexed: 05/31/2023]
Abstract
Water quality and safety are vital to the ecological environment, social development, and ecological susceptibility. The extensive use and continuous discharge of antibiotics have caused serious water pollution; antibiotics are widely found in freshwater, drinking water, and reservoirs; and this pollution has become a common phenomenon and challenge in global water ecosystems, as water polluted by antibiotics poses serious risks to human health and the ecological environment. Therefore, the antibiotic content in water should be identified, monitored, and eliminated. Nevertheless, there is no single method that can detect all different types of antibiotics, so various techniques are often combined to produce reliable results. This review summarizes the sources of antibiotic pollution in water, covering three main aspects: (1) wastewater discharges from domestic sewage, (2) medical wastewater, and (3) animal physiology and aquaculture. The existing analytical techniques, including extraction techniques, conventional detection methods, and biosensors, are reviewed. The electrochemical biosensors have become a research hotspot in recent years because of their rapid detection, high efficiency, and portability, and the use of nanoparticles contributes to these outstanding qualities. Additionally, the comprehensive quality evaluation of various detection methods, including the linear detection range, detection limit (LOD), and recovery rate, is discussed, and the future of this research field is also prospected.
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Affiliation(s)
- Yanbo Zeng
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650504, China
| | - Fengqin Chang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650504, China
| | - Qi Liu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650504, China
| | - Lizeng Duan
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650504, China
| | - Donglin Li
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650504, China
| | - Hucai Zhang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan 650504, China
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6
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Marimuthu M, Arumugam SS, Jiao T, Sabarinathan D, Li H, Chen Q. Metal organic framework based sensors for the detection of food contaminants. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116642] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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7
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8
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A plug-and-play optical fiber SPR sensor for simultaneous measurement of glucose and cholesterol concentrations. Biosens Bioelectron 2022; 198:113798. [PMID: 34823961 DOI: 10.1016/j.bios.2021.113798] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 12/21/2022]
Abstract
A plug-and-play surface plasmon resonance (SPR) dual-parameter optical fiber biosensor is reported, in which Au film was firstly coated on the fiber surface for exciting SPR and the end half of the Au film was modified with Au nanoparticles to generate double SPR resonance valleys. For simultaneous detecting of glucose and cholesterol concentrations, modified P-mercaptophenylboronic acid (PMBA) and β-cyclodextrin (β-CD) were subsequently coated on the surface of sensor probe. Due to the cis-diol structure of glucose, it can interact with PMBA, leading to a red shift of one SPR resonant valley, whose maximum wavelength shift is 11.228 nm in the range of 0-1.7 mM glucose concentration. On the same time, the cholesterol molecules can realize the host-guest combination with β-CD, leading to a red shift of another SPR resonant valley, and the maximum wavelength shift is 18.893 nm in the cholesterol concentration range of 0-300 nM. The detection limits of the sensor to glucose and cholesterol are 0.00078 mM and 0.012 nM, respectively. The enhances the practical value of the dual-parameter sensor. Both theory and experiment results verify the feasibility of the "plug-and-play" sensor to measure the dual biomass of glucose and cholesterol with ultra-low detection limit and good selectivity. The proposed method provides a huge research value for the optical fiber sensor in multi-parameter measurement.
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9
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Chen Y, Yang X, Cheng Y, Zhang L, Yang Z, Schipper D. Regulatable Detection of Antibiotics Based on a Near-IR-Luminescent Tubelike Zn(II)-Yb(III) Nanocluster. Inorg Chem 2022; 61:1011-1017. [PMID: 34978442 DOI: 10.1021/acs.inorgchem.1c03071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A tubelike Zn(II)-Yb(III) cluster, [Zn6Yb5L5(HL)(NO3)4(DMF)6(EtOH)4(H2O)4] (1; DMF = N,N-dimethylformamide and EtOH = ethanol; molecular size 1.5 × 1.8 × 2.9 nm), was synthesized from a new long-chain Schiff base ligand. 1 exhibits a regulatable near-IR-luminescent response to nitrofuran antibiotics (NFAs) and fluoroquinolones with high sensitivity, which is not influenced by other antibiotics. The quenching constants of NFAs and fluoroquinolones range from 0.55 × 104 to 8.8 × 104 M-1, and the detection limits of 1 to them are from 4.2 × 10-4 to 2.6 × 10-5 M. It also shows a luminescent response to real antibiotic drugs containing NFAs and fluoroquinolones.
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Affiliation(s)
- Ya Chen
- Zhejiang Key Laboratory of Carbon Materials, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xiaoping Yang
- Zhejiang Key Laboratory of Carbon Materials, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yuebo Cheng
- Zhejiang Key Laboratory of Carbon Materials, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Lijie Zhang
- Zhejiang Key Laboratory of Carbon Materials, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Zhi Yang
- Zhejiang Key Laboratory of Carbon Materials, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Desmond Schipper
- Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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10
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Niu M, Yang X, Ma Y, Wang C, Hao W, Shi D, Schipper D. Construction of an Octanuclear Zn(
II
)‐Yb(
III
) Schiff Base Complex for the
NIR
Luminescent Sensing of Nitrofuran Antibiotics. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Mengyu Niu
- College of Chemistry and Materials Engineering, Wenzhou University Wenzhou, Zhejiang 325035 China
| | - Xiaoping Yang
- College of Chemistry and Materials Engineering, Wenzhou University Wenzhou, Zhejiang 325035 China
| | - Yanan Ma
- College of Chemistry and Materials Engineering, Wenzhou University Wenzhou, Zhejiang 325035 China
| | - Chengri Wang
- College of Chemistry and Materials Engineering, Wenzhou University Wenzhou, Zhejiang 325035 China
| | - Wenxin Hao
- College of Chemistry and Materials Engineering, Wenzhou University Wenzhou, Zhejiang 325035 China
| | - Dongliang Shi
- College of Chemistry and Materials Engineering, Wenzhou University Wenzhou, Zhejiang 325035 China
| | - Desmond Schipper
- Department of Chemistry and Biochemistry, The University of Texas at Austin 1 University Station A5300 Austin Texas 78712 United States
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11
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Nelis JLD, Salvador JP, Marco MP, Elliott CT, Campbell K. A plasmonic biosensor array exploiting plasmon coupling between gold nanorods and spheres for domoic acid detection via two methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 252:119473. [PMID: 33524817 DOI: 10.1016/j.saa.2021.119473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/08/2020] [Accepted: 01/10/2021] [Indexed: 06/12/2023]
Abstract
An immunoassay was developed that utilized plasmonic coupling between immobilised gold nanorods and colloid gold nanospheres to detect the marine toxin domoic acid (DA). The aspect ratio of the nanorods was optimised and the effects of variation in acidity, silver to gold ratio, cetyltrimethylammonium bromide (CTAB) concentration and seed addition in the growth solution on the yield, size variance and LSPR peak position was investigated. Excellent nanorods (size variation < 15%; aspect ratio 3.5-5; yield 0.26-0.35 nM mL-1) were obtained for the LSPR range 785-867 nm using strong acidic conditions (12 µl HCl (37%)), silver to gold ratio of 1:5, 0.05-0.1 M CTAB and 20-30 µl seed addition to 10 mL of growth solution. One set of nanorods (54.9 X 15.7 nm; LSPR 785 nm) were immobilised onto a silica support and bio-functionalised with DA hapten. Colloid nanospheres (15 nm; LSPR 519 nm) were bio-functionalised with an anti-domoic-acid monoclonal antibody. The functionalised nanoparticles were used to detect DA by plasmon coupling by quantifying the average LSPR shift of individual plasmon couples with hyperspectral imaging or quantifying the pixels count caused by the particle aggregation visible under darkfield microscopy. The first method led to a LSPR blue-shift of ~55 nm caused by the immunoreaction. The second, simpler method, enabled very clear qualitative detection (p < 0.0005) of domoic acid when 10 µM domoic acid was added. Both methods show potential though the novelty and simplicity of the second platform allowing rapid (~30 min) detection with high-throughput possibilities using a simple set-up is of most interest.
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Affiliation(s)
- Joost L D Nelis
- Institute for Global Food Security, School of Biological Sciences, Queen's University, 19 Chlorine Gardens, Belfast BT9 5DL, UK.
| | - J Pablo Salvador
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Jordi Girona 18-26, 08034 Barcelona, Spain; Nanobiotechnology for Diagnostics (Nb4D), Institute for Advanced Chemistry of Catalonia (IQAC) of the Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - M Pilar Marco
- Nanobiotechnology for Diagnostics (Nb4D), Institute for Advanced Chemistry of Catalonia (IQAC) of the Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Christopher T Elliott
- Institute for Global Food Security, School of Biological Sciences, Queen's University, 19 Chlorine Gardens, Belfast BT9 5DL, UK
| | - Katrina Campbell
- Institute for Global Food Security, School of Biological Sciences, Queen's University, 19 Chlorine Gardens, Belfast BT9 5DL, UK
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Hao W, Yang X, Ma Y, Niu M, Shi D, Schipper D. Construction of a high-nuclearity Nd(III) nanoring for the NIR luminescent detection of antibiotics. Dalton Trans 2021; 50:5865-5870. [PMID: 33949503 DOI: 10.1039/d1dt00230a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One NIR luminescent 14-metal Nd(iii) nanoring (1, molecular size: 1.0 × 2.2 × 2.6 nm) was obtained from a rigid tridentate ligand, which can absorb and transfer light energy to the Nd(iii) ions. 1 shows interesting luminescence sensing activity to antibiotics, in particular to NFAs with high sensitivity due to the inner filter effect. The quenching constants and the limits of detection of 1 to NFAs are 1.05 × 104 M-1-2.33 × 104 M-1 and 3.05 μM-6.75 μM, respectively. The high fluorescence sensitivities of 1 to NFAs are not changed by the existence of other antibiotics. It also exhibits high sensitivity in the luminescent detection of NFAs contained in real antibiotic drugs.
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Affiliation(s)
- Wenxin Hao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Xiaoping Yang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Yanan Ma
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Mengyu Niu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Dongliang Shi
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
| | - Desmond Schipper
- The University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station A5300, Austin, Texas 78712, USA
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Lin X, O'Reilly Beringhs A, Lu X. Applications of Nanoparticle-Antibody Conjugates in Immunoassays and Tumor Imaging. AAPS J 2021; 23:43. [PMID: 33718979 PMCID: PMC7956929 DOI: 10.1208/s12248-021-00561-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 01/20/2021] [Indexed: 02/06/2023] Open
Abstract
Modern diagnostic technologies rely on both in vitro and in vivo modalities to provide a complete understanding of the clinical state of a patient. Nanoparticle-antibody conjugates have emerged as promising systems to confer increased sensitivity and accuracy for in vitro diagnostics (e.g., immunoassays). Meanwhile, in vivo applications have benefited from the targeting ability of nanoparticle-antibody conjugates, as well as payload flexibility and tailored biodistribution. This review provides an encompassing overview of nanoparticle-antibody conjugates, from chemistry to applications in medical immunoassays and tumor imaging, highlighting the underlying principles and unique features of relevant preclinical applications employing commonly used imaging modalities (e.g., optical/photoacoustics, positron-emission tomography, magnetic resonance imaging, X-ray computed tomography).
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Affiliation(s)
- Xinhao Lin
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut, USA
| | | | - Xiuling Lu
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut, USA.
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14
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Ma Y, Yang X, Shi D, Niu M, Schipper D. One High-Nuclearity Cd(II)-Yb(III) Nanoring with Near-IR Luminescent Sensing to Antibiotics. Inorg Chem 2020; 59:16809-16813. [PMID: 33225699 DOI: 10.1021/acs.inorgchem.0c02567] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
One 12-metal Cd(II)-Yb(III) nanoring, [Cd8Yb4L8(OAc)8]·4OH (1), with a size of 1.2 × 2.8 × 2.8 nm was obtained from a designed flexible salen-type ligand that has eight coordination sites (O and N atoms). The near-IR emission of Yb(III) at 983 nm was detected upon the excitation of ligand-central absorption at 386 nm. This Cd(II)-Yb(III) nanoring exhibits high sensitivity to nitrofuran antibiotics (NFAs) even in the presence of other antibiotics. The quenching constants and limits of detection of NFAs are 2.5 × 104-4.5 × 104 M-1 and 1.5-2.8 μM, respectively.
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Affiliation(s)
- Yanan Ma
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xiaoping Yang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Dongliang Shi
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Mengyu Niu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Desmond Schipper
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas 78712, United States
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15
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Abstract
Antibiotics are extensively employed as bacteriostatic agents for fighting against microbial infection in animals. However, inappropriate doses of antibiotic drugs may result in antibiotic residues in food of animal origin and may cause various side effects on human health. Moreover, the transferor of antibiotic-resistant bacteria to humans through the food chain may induce serious health hazards. Hence, it is vital to develop sensitive and selective methods for rapid screening and regular monitoring of antibiotic residues in animal-derived foods. The conventional different chromatographic and spectroscopic techniques are time-consuming, expensive and require skilled personnel. To overcome such limitations, biosensors have emerged as an innovative approach recently and integrated with nanotechnologies for sensitive, rapid and on-site monitoring of different antibiotic residues in animal origin foods. This mini-review aims to give an overview of the currently available biosensing techniques to detect antibiotic residue in foods.
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Affiliation(s)
- M Z H Khan
- Department of Chemical Engineering, Jashore University of Science and Technology, Jashore, Bangladesh.,Laboratory of Nano-Bio and Advanced Materials Engineering (NAME), Jashore University of Science and Technology, Jashore, Bangladesh
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16
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Majdinasab M, Mishra RK, Tang X, Marty JL. Detection of antibiotics in food: New achievements in the development of biosensors. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115883] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Zhong WB, Li RX, Lv J, He T, Xu MM, Wang B, Xie LH, Li JR. Two isomeric In(iii)-MOFs: unexpected stability difference and selective fluorescence detection of fluoroquinolone antibiotics in water. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01490j] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The fluorescence of the two new In(iii)-MOFs is selectively quenched by the fluoroquinolones, including ciprofloxacin, one of the most widely used antibiotics worldwide.
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Affiliation(s)
- Wen-Bin Zhong
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Ru-Xia Li
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Jie Lv
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Tao He
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Ming-Ming Xu
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Bin Wang
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Lin-Hua Xie
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Jian-Rong Li
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
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18
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Highly sensitive and selective detection of single-nucleotide polymorphisms using gold nanoparticle MutS enzymes and a micro cantilever resonator. Talanta 2019; 205:120154. [DOI: 10.1016/j.talanta.2019.120154] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 07/12/2019] [Accepted: 07/13/2019] [Indexed: 12/21/2022]
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19
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Bai H, Yuan M, Wang X, Wang X, Che J. Development of a Gold Nanoparticle-Functionalized Surface Plasmon Resonance Assay for the Sensitive Detection of Monoclonal Antibodies and Its Application in Pharmacokinetics. Drug Metab Dispos 2019; 47:1361-1367. [PMID: 31324700 DOI: 10.1124/dmd.119.086249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 07/15/2019] [Indexed: 11/22/2022] Open
Abstract
As a prominent human therapeutic, therapeutic monoclonal antibodies (mAbs) have attracted increasing attention in the past decade due to their high-targeting specificity, low toxicity, and prolonged efficacy. Systematic pharmacokinetic analysis of mAbs not only largely facilitates the understanding of their biologic functions but also promotes the development of therapeutic drug discovery, early clinical trial implementation, and therapeutic monitoring. However, the extremely complex nature of biomatrices and the especially low dosages of mAbs make their detection in biomatrices and further pharmacokinetic analysis highly challenging. Therefore, a method capable of reliably, quickly, and sensitively quantifying mAbs in biomatrices is urgently needed. In this work, we developed and evaluated an gold nanoparticle-functionalized surface plasmon resonance assay for cetuximab (C225) detection and pharmacokinetic analysis in rhesus monkeys. Combining its advantages of label-free pretreatment and amplified signal response, the lower limit of quantitation of C225 in monkey serum was reduced to 0.0125 μg/ml, and the linear range had an order of magnitude comparable to that of an ELISA-based method. Furthermore, the pharmacokinetics of C225 in rhesus monkeys was studied after intravenous infusions of single doses at 7.5, 24, and 75 mg/kg. The concentration of C225 in monkey serum was detectable after dosing for 720 hours. We believe that this new strategy will be applicable as a general protocol for mAb quantification, pharmacokinetic characteristic determination, and toxicokinetic analysis during drug development.
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Affiliation(s)
- Haihong Bai
- Phase I Clinical Trial Center, Beijing Shijitan Hospital of Capital Medical University, Beijing, PR China (H.B., Xin.W.); State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, PR China (M.Y., J.C.); and Chinese Pharmaceutical Association, Beijing, PR China (Xia.W.)
| | - Mei Yuan
- Phase I Clinical Trial Center, Beijing Shijitan Hospital of Capital Medical University, Beijing, PR China (H.B., Xin.W.); State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, PR China (M.Y., J.C.); and Chinese Pharmaceutical Association, Beijing, PR China (Xia.W.)
| | - Xiaojing Wang
- Phase I Clinical Trial Center, Beijing Shijitan Hospital of Capital Medical University, Beijing, PR China (H.B., Xin.W.); State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, PR China (M.Y., J.C.); and Chinese Pharmaceutical Association, Beijing, PR China (Xia.W.)
| | - Xinghe Wang
- Phase I Clinical Trial Center, Beijing Shijitan Hospital of Capital Medical University, Beijing, PR China (H.B., Xin.W.); State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, PR China (M.Y., J.C.); and Chinese Pharmaceutical Association, Beijing, PR China (Xia.W.)
| | - Jinjing Che
- Phase I Clinical Trial Center, Beijing Shijitan Hospital of Capital Medical University, Beijing, PR China (H.B., Xin.W.); State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, PR China (M.Y., J.C.); and Chinese Pharmaceutical Association, Beijing, PR China (Xia.W.)
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20
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Zarei K, Ghorbani M. Fabrication of a new ultrasensitive AuNPs-MIC-based sensor for electrochemical determination of streptomycin. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Fiber-optic surface plasmon resonance glucose sensor enhanced with phenylboronic acid modified Au nanoparticles. Biosens Bioelectron 2018; 117:637-643. [DOI: 10.1016/j.bios.2018.06.042] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/22/2018] [Accepted: 06/23/2018] [Indexed: 11/21/2022]
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22
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Fathi F, Rashidi MR, Omidi Y. Ultra-sensitive detection by metal nanoparticles-mediated enhanced SPR biosensors. Talanta 2018; 192:118-127. [PMID: 30348366 DOI: 10.1016/j.talanta.2018.09.023] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/07/2018] [Accepted: 09/08/2018] [Indexed: 10/28/2022]
Abstract
Surface plasmon resonance (SPR), as an optical technique, has widely been used for the detection of biomarkers. Various investigations have been conducted to address the impacts of SPR on the kinetics of biological interactions between the ligand and its cognate bio-element. Up until now, different biofunctionalized metal nanoparticles (NPs) have been used for the ultrasensitive detection of biomarkers in the enhanced SPR. The enhancement of plasmonic properties and refractive index by means of metal NPs in SPR-based biosensors have significantly improved the diagnosis and monitoring of molecular markers in different disesaes including malignancies. In all the enhanced SPR systems utilized for the direct/sandwich assay, each NP is covalently modified with the analyte molecules like antibody (Ab) or a nucleic acid such as DNA/RNA aptamer (Ap) capable of interaction with the related biomarker(s). The increasing of density near the gold surface and plasmonic coupling of gold film and NPs can provide a large shift in the refractive index enhancing the plasmonic resonance because the SPR response unit is sensitive to alteration of the refractive index and the mass shifting onto the chip surface. In this study, we review the potential applications of two major NPs for enhancing the SPR signals for the detection of molecular biomarkers, including gold and magnetic NPs.
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Affiliation(s)
- Farzaneh Fathi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad-Reza Rashidi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yadollah Omidi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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23
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A simple and universal enzyme-free approach for the detection of multiple microRNAs using a single nanostructured enhancer of surface plasmon resonance imaging. Anal Bioanal Chem 2018; 411:1873-1885. [PMID: 30155701 DOI: 10.1007/s00216-018-1331-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/22/2018] [Accepted: 08/16/2018] [Indexed: 12/20/2022]
Abstract
Here we describe a simple approach for the simultaneous detection of multiple microRNAs (miRNAs) using a single nanostructured reagent as surface plasmon resonance imaging (SPRi) enhancer and without using enzymatic reactions, sequence specific enhancers or multiple enhancing steps as normally reported in similar studies. The strategy involves the preparation and optimisation of neutravidin-coated gold nanospheres (nGNSs) functionalised with a previously biotinylated antibody (Ab) against DNA/RNA hybrids. The Ab guarantees the recognition of any miRNA sequence adsorbed on a surface properly functionalised with different DNA probes; at the same time, gold nanoparticles permit to detect this interaction, thus producing enough SPRi signal even at a low ligand concentration. After a careful optimisation of the nanoenhancer and after its characterisation, the final assay allowed the simultaneous detection of four miRNAs with a limit of detection (LOD) of up to 0.5 pM (equal to 275 attomoles in 500 μL) by performing a single enhancing injection. The proposed strategy shows good signal specificity and permits to discriminate wild-type, single- and triple-mutated sequences much better than non-enhanced SPRi. Finally, the method works properly in complex samples (total RNA extracted from blood) as demonstrated by the detection of four miRNAs potentially related to multiple sclerosis used as case study. This proof-of-concept study confirms that the approach provides the possibility to detect a theoretically unlimited number of miRNAs using a simple protocol and an easily prepared enhancing reagent, and may further facilitate the development of affordable multiplexing miRNA screening for clinical purposes.
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24
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Label-Free Detection of Salivary Pepsin Using Gold Nanoparticle/Polypyrrole Nanocoral Modified Screen-Printed Electrode. SENSORS 2018; 18:s18061685. [PMID: 29882917 PMCID: PMC6021850 DOI: 10.3390/s18061685] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/12/2018] [Accepted: 05/21/2018] [Indexed: 11/17/2022]
Abstract
Detection of salivary pepsin has been given attention as a new diagnostic tool for laryngopharyngeal reflux (LPR) disease, because saliva collection is non-invasive and relatively comfortable. In this study, we prepared polypyrrole nanocorals (PPNCs) on a screen-printed carbon electrode (SPCE) by a soft template synthesis method, using β-naphthalenesulfonic acid (NSA) (for short, PPNCs/SPCE). Gold nanoparticles (GNPs) were then decorated on PPNCs/SPCE by electrodeposition (for short, GNP/PPNCs/SPCE). To construct the immunosensor, pepsin antibody was immobilized on GNP/PPNCs/SPCE. Next, citric acid was applied to prevent non-specific binding and change the electrode surface charge before pepsin incubation. Electrochemical stepwise characterization was performed using cyclic voltammetry, and immunosensor response toward different pepsin concentrations was measured by differential pulsed voltammetry. As a result, our electrochemical immunosensor showed a sensitive detection performance toward pepsin with a linear range from 6.25 to 100 ng/mL and high specificity toward pepsin, as well as a low limit of detection of 2.2 ng/mL. Finally, we quantified the pepsin levels in saliva samples of LPR patients (n = 2), showing that the results were concordant with those of a conventional ELISA method. Therefore, we expect that this electrochemical immunosensor could be helpful for preliminarily diagnosing LPR through the detection of pepsin in saliva.
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25
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Zhu XD, Zhang K, Wang Y, Long WW, Sa RJ, Liu TF, Lü J. Fluorescent Metal-Organic Framework (MOF) as a Highly Sensitive and Quickly Responsive Chemical Sensor for the Detection of Antibiotics in Simulated Wastewater. Inorg Chem 2018; 57:1060-1065. [PMID: 29308896 DOI: 10.1021/acs.inorgchem.7b02471] [Citation(s) in RCA: 187] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A Zn(II)-based fluorescent metal-organic framework (MOF) was synthesized and applied as a highly sensitive and quickly responsive chemical sensor for antibiotic detection in simulated wastewater. The fluorescent chemical sensor, denoted FCS-1, exhibited enhanced fluorescence derived from its highly ordered, 3D MOF structure as well as excellent water stability in the practical pH range of simulated antibiotic wastewater (pH = 3.0-9.0). Remarkably, FCS-1 was able to effectively detect a series of sulfonamide antibiotics via photoinduced electron transfer that caused detectable fluorescence quenching, with fairly low detection limits. Two influences impacting measurements related to wastewater treatment and water quality monitoring, the presence of heavy-metal ions and the pH of solutions, were studied in terms of fluorescence quenching, which was nearly unaffected in sulfonamide-antibiotic detection. Additionally, the effective detection of sulfonamide antibiotics was rationalized by the theoretical computation of the energy bands of sulfonamide antibiotics, which revealed a good match between the energy bands of FCS-1 and sulfonamide antibiotics, in connection with fluorescence quenching in this system.
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Affiliation(s)
- Xian-Dong Zhu
- School of Biological & Chemical Engineering, Anhui Polytechnic University , Wuhu 241000, P.R. China.,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou 350002, P.R. China
| | - Kun Zhang
- School of Biological & Chemical Engineering, Anhui Polytechnic University , Wuhu 241000, P.R. China
| | - Yu Wang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University , Fuzhou 350002, P.R. China
| | - Wei-Wei Long
- School of Biological & Chemical Engineering, Anhui Polytechnic University , Wuhu 241000, P.R. China
| | - Rong-Jian Sa
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou 350002, P.R. China
| | - Tian-Fu Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou 350002, P.R. China
| | - Jian Lü
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University , Fuzhou 350002, P.R. China.,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou 350002, P.R. China
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26
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Lan L, Yao Y, Ping J, Ying Y. Recent advances in nanomaterial-based biosensors for antibiotics detection. Biosens Bioelectron 2017; 91:504-514. [DOI: 10.1016/j.bios.2017.01.007] [Citation(s) in RCA: 196] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 12/31/2016] [Accepted: 01/04/2017] [Indexed: 01/09/2023]
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27
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Advances in biosensor development for the screening of antibiotic residues in food products of animal origin – A comprehensive review. Biosens Bioelectron 2017; 90:363-377. [DOI: 10.1016/j.bios.2016.12.005] [Citation(s) in RCA: 178] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 11/22/2016] [Accepted: 12/01/2016] [Indexed: 12/25/2022]
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28
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Chen M, Gan N, Li T, Wang Y, Xu Q, Chen Y. An electrochemical aptasensor for multiplex antibiotics detection using Y-shaped DNA-based metal ions encoded probes with NMOF substrate and CSRP target-triggered amplification strategy. Anal Chim Acta 2017; 968:30-39. [PMID: 28395772 DOI: 10.1016/j.aca.2017.03.024] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 03/12/2017] [Accepted: 03/14/2017] [Indexed: 12/17/2022]
Abstract
An effective electrochemical aptasensor has been developed for the detection of multiplex antibiotics using Y-shaped DNA probes. These probes-based metal ions encoded the nanoscale metal-organic frameworks (NMOF) as a substrate, and circular strand-replacement DNA polymerization (CSRP) target triggered the amplification strategy. The Y-DNA probes (Y-DNA) were assembled using an assisted DNA probe (assisted DNA labeled with magnetic gold nanoparticles) which can hybridize to the captured DNA probe (consisting of aptamer and primer recognition region), and signal tags (NMOF encapsulating signal DNAs and different metal ions such as Pb2+ or Cd2+). Notably, NMOF was employed as the developed platform with a large specific area to load abundant metal ions that can produce distinguishable signals. In the presence of targets, chloramphenicol (CAP) and oxytetracycline (OTC) as models, the conformational change of the captured DNA can disassemble the Y-DNA probes that can consequently release the signal tags in the supernatant due to the high affinity of targets towards the aptamer domain than its complementary sequences. Subsequently, the exposed sequences of captured DNA serve as the initiators for triggering the target cyclic-induced polymerization with the assistance of Bst DNA polymerase. Thus, numerous signal tags could be detected by square wave voltammetry in the supernatant after magnetic separation, thereby amplifying the electrochemical signals. The proposed strategy exhibited a high sensitivity to antibiotics with a detection limit of 33 and 48 fM (S/N = 3) towards CAP and OTC, respectively. Moreover, this aptasensor showed promising applications for the detection of other analytes.
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Affiliation(s)
- Meng Chen
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Ning Gan
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
| | - Tianhua Li
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Ye Wang
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Qing Xu
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Yinji Chen
- Faculty of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210000, China
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29
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Ciaurriz P, Fernández F, Tellechea E, Moran JF, Asensio AC. Comparison of four functionalization methods of gold nanoparticles for enhancing the enzyme-linked immunosorbent assay (ELISA). BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2017; 8:244-253. [PMID: 28243563 PMCID: PMC5301989 DOI: 10.3762/bjnano.8.27] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 01/02/2017] [Indexed: 05/08/2023]
Abstract
The enzyme-linked immunosorbent assay (ELISA) technique is based on the specific recognition ability of the molecular structure of an antigen (epitope) by an antibody and is likely the most important diagnostic technique used today in bioscience. With this methodology, it is possible to diagnose illness, allergies, alimentary fraud, and even to detect small molecules such as toxins, pesticides, heavy metals, etc. For this reason, any procedures that improve the detection limit, sensitivity or reduce the analysis time could have an important impact in several fields. In this respect, many methods have been developed for improving the technique, ranging from fluorescence substrates to methods for increasing the number of enzyme molecules involved in the detection such as the biotin-streptavidin method. In this context, nanotechnology has offered a significant number of proposed solutions, mainly based on the functionalization of nanoparticles from gold to carbon which could be used as antibody carriers as well as reporter enzymes like peroxidase. However, few works have focused on the study of best practices for nanoparticle functionalization for ELISA enhancement. In this work, we use 20 nm gold nanoparticles (AuNPs) as a vehicle for secondary antibodies and peroxidase (HRP). The design of experiments technique (DOE) and four different methods for biomolecule loading were compared using a rabbit IgG/goat anti-rabbit IgG ELISA model (adsorption, directional, covalent and a combination thereof). As a result, AuNP probes prepared by direct adsorption were the most effective method. AuNPs probes were then used to detect gliadin, one of the main components of wheat gluten, the protein composite that causes celiac disease. With this optimized approach, our data showed a sensitivity increase of at least five times and a lower detection limit with respect to a standard ELISA of at least three times. Additionally, the assay time was remarkably decreased.
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Affiliation(s)
- Paula Ciaurriz
- Cemitec (Multidisciplinary Center of Technologies for Industry), Polígono Mocholí, Plaza Cein 3, Noain 31110, Spain
| | - Fátima Fernández
- Cemitec (Multidisciplinary Center of Technologies for Industry), Polígono Mocholí, Plaza Cein 3, Noain 31110, Spain
| | - Edurne Tellechea
- Cemitec (Multidisciplinary Center of Technologies for Industry), Polígono Mocholí, Plaza Cein 3, Noain 31110, Spain
| | - Jose F Moran
- IdAB-CSIC-UPNA-GN (Institute of Agro-Biotechnology), Public University of Navarre, Campus Arrosadía s/n, Pamplona 31006, Spain
| | - Aaron C Asensio
- Cemitec (Multidisciplinary Center of Technologies for Industry), Polígono Mocholí, Plaza Cein 3, Noain 31110, Spain
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30
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Castellarnau M, Ramón-Azcón J, Gonzalez-Quinteiro Y, López JF, Grimalt JO, Marco MP, Nieuwenhuijsen M, Picado A. Assessment of analytical methods to determine pyrethroids content of bednets. Trop Med Int Health 2016; 22:41-51. [PMID: 27717143 DOI: 10.1111/tmi.12794] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To present and evaluate simple, cost-effective tests to determine the amount of insecticide on treated materials. METHODS We developed and evaluated a competitive immunoassay on two different platforms: a label-free impedimetric biosensor (EIS biosensor) and a lateral flow. Both approaches were validated by gas chromatography (GC) and ELISA, gold standards for analytical methods and immunoassays, respectively. Finally, commercially available pyrethroid-treated ITN samples were analysed. Different extraction methods were evaluated. RESULTS Insecticide extraction by direct infusion of the ITN samples with dichloromethane and dioxane showed recovery efficiencies around 100% for insecticide-coated bednets, and >70% for insecticide-incorporated bednets. These results were comparable to those obtained with standard sonication methods. The competitive immunoassay characterisation with ELISA presented a dynamic range between 12 nm and 1.5 μm (coefficient of variation (CV) below 5%), with an IC50 at 138 nm, and a limit of detection (LOD) of 3.2 nm. EIS biosensor had a linear range between 1.7 nm and 61 nm (CV around 14%), with an IC50 at 10.4 nm, and a LOD of 0.6 nm. Finally, the lateral flow approach showed a dynamic range between 150 nm and 1.5 μm, an IC50 at 505 nm and a LOD of 67 nm. CONCLUSIONS ELISA can replace chromatography as an accurate laboratory technique to determine insecticide concentration in bednets. The lateral flow approach developed can be used to estimate ITN insecticide concentration in the field. This new technology, coupled to the new extraction methods, should provide reliable guidelines for ITN use and replacement in the field.
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Affiliation(s)
- Marc Castellarnau
- ISGlobal, Barcelona Centre for International Health Research (CRESIB), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Javier Ramón-Azcón
- Nanobiotechnology for Diagnostics, Institute for Advanced Chemistry of Catalonia of the Spanish Council for Scientific Research, Barcelona, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina, Barcelona, Spain
| | | | - Jordi F López
- Institute of Environmental Assessment and Water Research, Barcelona, Spain
| | - Joan O Grimalt
- Institute of Environmental Assessment and Water Research, Barcelona, Spain
| | - María-Pilar Marco
- Nanobiotechnology for Diagnostics, Institute for Advanced Chemistry of Catalonia of the Spanish Council for Scientific Research, Barcelona, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina, Barcelona, Spain
| | - Mark Nieuwenhuijsen
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Universitat Pompeu Fabra (UPF), CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Albert Picado
- ISGlobal, Barcelona Centre for International Health Research (CRESIB), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
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31
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Gao YS, Zhu XF, Xu JK, Lu LM, Wang WM, Yang TT, Xing HK, Yu YF. Label-free electrochemical immunosensor based on Nile blue A-reduced graphene oxide nanocomposites for carcinoembryonic antigen detection. Anal Biochem 2016; 500:80-7. [DOI: 10.1016/j.ab.2016.02.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 11/05/2015] [Accepted: 02/09/2016] [Indexed: 11/29/2022]
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32
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Pastells C, Pascual N, Sanchez-Baeza F, Marco MP. Immunochemical Determination of Pyocyanin and 1-Hydroxyphenazine as Potential Biomarkers of Pseudomonas aeruginosa Infections. Anal Chem 2016; 88:1631-8. [DOI: 10.1021/acs.analchem.5b03490] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Carme Pastells
- Nanobiotechnology for Diagnostics (Nb4D), IQAC−CSIC, ‡Networking Research Center on Bioengineering, Biomaterials and Nanomedicine
(CIBER-BBN), Spain, Jordi
Girona, 18-26, 08034 Barcelona, Spain
| | - Nuria Pascual
- Nanobiotechnology for Diagnostics (Nb4D), IQAC−CSIC, ‡Networking Research Center on Bioengineering, Biomaterials and Nanomedicine
(CIBER-BBN), Spain, Jordi
Girona, 18-26, 08034 Barcelona, Spain
| | - Francisco Sanchez-Baeza
- Nanobiotechnology for Diagnostics (Nb4D), IQAC−CSIC, ‡Networking Research Center on Bioengineering, Biomaterials and Nanomedicine
(CIBER-BBN), Spain, Jordi
Girona, 18-26, 08034 Barcelona, Spain
| | - M.-Pilar Marco
- Nanobiotechnology for Diagnostics (Nb4D), IQAC−CSIC, ‡Networking Research Center on Bioengineering, Biomaterials and Nanomedicine
(CIBER-BBN), Spain, Jordi
Girona, 18-26, 08034 Barcelona, Spain
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33
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Pawula M, Altintas Z, Tothill IE. SPR detection of cardiac troponin T for acute myocardial infarction. Talanta 2016; 146:823-30. [DOI: 10.1016/j.talanta.2015.06.006] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 05/30/2015] [Accepted: 06/03/2015] [Indexed: 11/25/2022]
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34
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Gao YS, Zhu XF, Yang TT, Xu JK, Lu LM, Zhang KX. Sensitive electrochemical determination of α-fetoprotein using a glassy carbon electrode modified with in-situ grown gold nanoparticles, graphene oxide and MWCNTs acting as signal amplifiers. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1537-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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35
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Onodera T, Toko K. Towards an electronic dog nose: surface plasmon resonance immunosensor for security and safety. SENSORS 2014; 14:16586-616. [PMID: 25198004 PMCID: PMC4208188 DOI: 10.3390/s140916586] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 07/31/2014] [Accepted: 08/29/2014] [Indexed: 01/06/2023]
Abstract
This review describes an “electronic dog nose” based on a surface plasmon resonance (SPR) sensor and an antigen–antibody interaction for security and safety. We have concentrated on developing appropriate sensor surfaces for the SPR sensor for practical use. The review covers different surface fabrications, which all include variations of a self-assembled monolayer containing oligo(ethylene glycol), dendrimer, and hydrophilic polymer. We have carried out detection of explosives using the sensor surfaces. For the SPR sensor to detect explosives, the vapor or particles of the target substances have to be dissolved in a liquid. Therefore, we also review the development of sampling processes for explosives, and a protocol for the measurement of explosives on the SPR sensor in the field. Additionally, sensing elements, which have the potential to be applied for the electronic dog nose, are described.
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Affiliation(s)
- Takeshi Onodera
- Research and Development Center for Taste and Odor Sensing, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Kiyoshi Toko
- Research and Development Center for Taste and Odor Sensing, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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Garcia-Febrero R, Salvador JP, Sanchez-Baeza F, Marco MP. Rapid method based on immunoassay for determination of paraquat residues in wheat, barley and potato. Food Control 2014. [DOI: 10.1016/j.foodcont.2014.01.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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37
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Liu Q, Zhou Q, Jiang G. Nanomaterials for analysis and monitoring of emerging chemical pollutants. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.02.014] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Zhang S, Ma H, Yan L, Cao W, Yan T, Wei Q, Du B. Copper-doped titanium dioxide nanoparticles as dual-functional labels for fabrication of electrochemical immunosensors. Biosens Bioelectron 2014; 59:335-41. [PMID: 24747572 DOI: 10.1016/j.bios.2014.03.060] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 03/19/2014] [Accepted: 03/27/2014] [Indexed: 02/06/2023]
Abstract
Constructions of versatile electroactive labels are key issues in the development of electrochemical immunosensors. In this study, copper-doped titanium dioxide nanoparticle (Cu@TiO2) was synthesized and used as labels for fabrication of sandwich-type electrochemical immunosensors on glassy carbon electrode (GCE). Due to the presence of copper ions, Cu@TiO2 shows a strong response current when coupled to an electrode. The prepared nanocomposite also shows high electrocatalytic activity towards reduction of hydrogen peroxide (H2O2). The dual functionality of Cu@TiO2 enables the fabrication of immunosensor using different detection modes, that is, square wave voltammetry (SWV) or chronoamperometry (CA). While Cu@TiO2 was used as labels of secondary antibodies (Ab2), carboxyl functionalized graphene oxide (CFGO) was used as electrode materials to immobilize primary antibodies (Ab1). Using human immunoglobulin G (IgG) as a model analyte, the immunosensor shows high sensitivity, acceptable stability and good reproducibility for both detection modes. Under optimal conditions, a linear range from 0.1 pg/mL to 100 ng/mL with a detection limit of 0.052 pg/mL was obtained for SWV analysis. For CA analysis, a wider linear range from 0.01 pg/mL to 100 ng/mL and a lower detection limit of 0.0043 pg/mL were obtained. The proposed metal ion-based enzyme-free and noble metal-free immunosensor may have promising applications in clinical diagnoses and many other fields.
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Affiliation(s)
- Sen Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China; School of Resources and Environment, University of Jinan, Jinan 250022, PR China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Liangguo Yan
- School of Resources and Environment, University of Jinan, Jinan 250022, PR China
| | - Wei Cao
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Tao Yan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
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Zeng S, Baillargeat D, Ho HP, Yong KT. Nanomaterials enhanced surface plasmon resonance for biological and chemical sensing applications. Chem Soc Rev 2014; 43:3426-52. [PMID: 24549396 DOI: 10.1039/c3cs60479a] [Citation(s) in RCA: 523] [Impact Index Per Article: 52.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The main challenge for all electrical, mechanical and optical sensors is to detect low molecular weight (less than 400 Da) chemical and biological analytes under extremely dilute conditions. Surface plasmon resonance sensors are the most commonly used optical sensors due to their unique ability for real-time monitoring the molecular binding events. However, their sensitivities are insufficient to detect trace amounts of small molecular weight molecules such as cancer biomarkers, hormones, antibiotics, insecticides, and explosive materials which are respectively important for early-stage disease diagnosis, food quality control, environmental monitoring, and homeland security protection. With the rapid development of nanotechnology in the past few years, nanomaterials-enhanced surface plasmon resonance sensors have been developed and used as effective tools to sense hard-to-detect molecules within the concentration range between pmol and amol. In this review article, we reviewed and discussed the latest trend and challenges in engineering and applications of nanomaterials-enhanced surface plasmon resonance sensors (e.g., metallic nanoparticles, magnetic nanoparticles, carbon-based nanomaterials, latex nanoparticles and liposome nanoparticles) for detecting "hard-to-identify" biological and chemical analytes. Such information will be viable in terms of providing a useful platform for designing future ultrasensitive plasmonic nanosensors.
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Affiliation(s)
- Shuwen Zeng
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
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Byzova NA, Smirnova NI, Zherdev AV, Eremin SA, Shanin IA, Lei HT, Sun Y, Dzantiev BB. Rapid immunochromatographic assay for ofloxacin in animal original foodstuffs using native antisera labeled by colloidal gold. Talanta 2014; 119:125-32. [DOI: 10.1016/j.talanta.2013.10.054] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 10/15/2013] [Accepted: 10/21/2013] [Indexed: 11/28/2022]
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A gold nanoparticles enhanced surface plasmon resonance immunosensor for highly sensitive detection of ischemia-modified albumin. SENSORS 2013; 13:12794-803. [PMID: 24072024 PMCID: PMC3859037 DOI: 10.3390/s131012794] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 09/12/2013] [Accepted: 09/17/2013] [Indexed: 01/15/2023]
Abstract
In this study a novel sensitive nanogold particle sensor enhancement based on mixed self-assembled monolayers was explored and used to construct a Surface Plasmon Resonance (SPR) immunosensor to detect Ischemia Modified Albumin (IMA). Compared with a direct binding SPR assay at a limit of detection (LOD) of 100 ng/L, gold nanoparticles (AuNPs) of 10 nm dramatically improved the LOD of IMA to 10 ng/L. Meanwhile, no interfering substance that may lead to false positive results was identified. These results suggested that the SPR biosensor presented superior properties, and provided a simple label-free strategy to increase assay sensitivity for further acute coronary syndrome (ACS) diagnosis.
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Muriano A, Pinacho DG, Chabottaux V, Diserens JM, Granier B, Stead S, Sanchez Baeza F, Pividori MI, Marco MP. A portable electrochemical magnetoimmunosensor for detection of sulfonamide antimicrobials in honey. Anal Bioanal Chem 2013; 405:7885-95. [DOI: 10.1007/s00216-013-7219-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 06/30/2013] [Accepted: 07/03/2013] [Indexed: 01/03/2023]
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Aptamer/thrombin/aptamer-AuNPs sandwich enhanced surface plasmon resonance sensor for the detection of subnanomolar thrombin. Biosens Bioelectron 2013; 47:265-70. [PMID: 23584389 DOI: 10.1016/j.bios.2013.02.004] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 01/17/2013] [Accepted: 02/04/2013] [Indexed: 11/23/2022]
Abstract
A sensitive and selective aptamer/thrombin/aptamer-AuNPs sandwich enhanced surface plasmon resonance (SPR) sensor has been developed for real-time detection of subnanomolar thrombin. In this protocol, one thiol-modified thrombin aptamer (TBA29) was immobilized on gold nanoparticles (AuNPs) via Au-S bonding. The other biotinylated thrombin aptamer (TBA15) was grafted onto streptavidin pretreated SPR gold film through biotin-streptavidin recognition. The presence of thrombin would then induce the formation of a double aptamer sandwich structure on the SPR gold film and results in obvious enhancement of SPR signal, which was proportional to the concentration of thrombin. This proposed assay took advantage of sandwich binding of two affinity aptamers for increased specificity, AuNPs for signal enhancement, as well as SPR signal readout for real-time detection. The SPR signal had a good linear relationship with thrombin concentration in the range of 0.1-75nM, and the detection limit for thrombin was determined to be as low as 0.1nM. It was found that aptamer functionalized AuNPs enhanced the signal of SPR response and thus increased the limit of detection 4-fold and 5-fold compared to direct detection format without AuNPs. This sensor also showed good selectivity for thrombin without being affected by some other proteins, such as BSA and lysozyme. Furthermore, this proposed SPR sensing platform was successfully applied to thrombin analysis in diluted human serum samples.
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Snopok BA. Theory and Practical Application of Surface Plasmon Resonance for Analytical Purposes. THEOR EXP CHEM+ 2012. [DOI: 10.1007/s11237-012-9274-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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45
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Liu B, Tang D, Zhang B, Que X, Yang H, Chen G. Au(III)-promoted magnetic molecularly imprinted polymer nanospheres for electrochemical determination of streptomycin residues in food. Biosens Bioelectron 2012; 41:551-6. [PMID: 23058661 DOI: 10.1016/j.bios.2012.09.021] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 09/13/2012] [Accepted: 09/14/2012] [Indexed: 01/23/2023]
Abstract
Redox-active magnetic molecularly imprinted polymer (mMIP) nanospheres were first synthesized and functionalized with streptomycin templates for highly efficient electrochemical determination of streptomycin residues (STR) in food by coupling with bioelectrocatalytic reaction of enzymes for signal amplification. The mMIP nanospheres were synthesized by using Au(III)-promoted molecularly imprinted polymerization with STR templates on magnetic beads. Based on extraction of template molecules from the mMIP surface, the imprints toward STR templates were formed. The assay was implemented with a competitive-type assay format. Upon addition of streptomycin, the analyte competed with glucose oxidase-labeled streptomycin (GOX-STR) for molecular imprints on the mMIP nanospheres. With the increasing streptomycin in the sample, the conjugation amount of GOX-STR on the mMIP nanospheres decreased, leading to the change in the bioelectrocatalytic current relative to glucose system. Under optimal conditions, the catalytic current was proportional to STR level in the sample, and exhibited a dynamic range of 0.05-20 ng mL(-1) with a detection limit of 10 pg mL(-1) STR (at 3s(B)). Intra- and inter-assay coefficients of variation were below 12%. The assayed results for STR spiked samples including milk and honey with the mMIP-based sensor were received a good accordance with the results obtained from the referenced high-performance liquid chromatography (HPLC) method.
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Affiliation(s)
- Bingqian Liu
- Key Laboratory of Analysis and Detection for Food Safety (Ministry of Education and Fujian Province), Department of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, PR China
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Characterization of a modified gold platform for the development of a label-free anti-thrombin aptasensor. Biosens Bioelectron 2012; 41:424-9. [PMID: 23017682 DOI: 10.1016/j.bios.2012.08.061] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 08/24/2012] [Accepted: 08/31/2012] [Indexed: 11/20/2022]
Abstract
This work reports the characterization of a modified gold surface as a platform for the development of a label free aptasensor for thrombin detection. The biorecognition platform was obtained by the self-assembly of 4-mercaptobenzoic acid onto a gold surface, covalent attachment of streptavidin and further immobilization of the biotinylated anti-thrombin aptamer. The biosensing platform was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, surface plasmon resonance (SPR) and quartz crystal microbalance with dissipation monitoring. The biorecognition event aptamer-thrombin was detected from changes in the SPR angle produced as a consequence of the molecular interaction between the aptasensor and the target protein. The biosensing platform demonstrated to be highly selective for human thrombin even in the presence of large excess of bovine thrombin, bovine serum albumin, cytochrome C, lysozyme and myoglobin. The relationship between the changes in the SPR angle and thrombin concentration was linear up to 0.19 μmol L(-1) (R(2)=0.992) while the detection limit was of 12.0 nmol L(-1) (240 fmol in the sample). This new sensing approach represents an interesting and promising alternative for the SPR-based quantification of thrombin.
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