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Wu S, Duan N, Ma X, Xia Y, Wang H, Wang Z. A highly sensitive fluorescence resonance energy transfer aptasensor for staphylococcal enterotoxin B detection based on exonuclease-catalyzed target recycling strategy. Anal Chim Acta 2013; 782:59-66. [PMID: 23708285 DOI: 10.1016/j.aca.2013.04.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 04/07/2013] [Accepted: 04/10/2013] [Indexed: 12/24/2022]
Abstract
An ultrasensitive fluorescence resonance energy transfer (FRET) bioassay was developed to detect staphylococcal enterotoxin B (SEB), a low molecular exotoxin, using an aptamer-affinity method coupled with upconversion nanoparticles (UCNPs)-sensing, and the fluorescence intensity was prominently enhanced using an exonuclease-catalyzed target recycling strategy. To construct this aptasensor, both fluorescence donor probes (complementary DNA1-UCNPs) and fluorescence quencher probes (complementary DNA2-Black Hole Quencher3 (BHQ3)) were hybridized to an SEB aptamer, and double-strand oligonucleotides were fabricated, which quenched the fluorescence of the UCNPs via FRET. The formation of an aptamer-SEB complex in the presence of the SEB analyte resulted in not only the dissociation of aptamer from the double-strand DNA but also both the disruption of the FRET system and the restoration of the UCNPs fluorescence. In addition, the SEB was liberated from the aptamer-SEB complex using exonuclease I, an exonuclease specific to single-stranded DNA, for analyte recycling by selectively digesting a particular DNA (SEB aptamer). Based on this exonuclease-catalyzed target recycling strategy, an amplified fluorescence intensity could be produced using different SEB concentrations. Using optimized experimental conditions produced an ultrasensitive aptasensor for the detection of SEB, with a wide linear range of 0.001-1 ng mL(-1) and a lower detection limit (LOD) of 0.3 pg mL(-1) SEB (at 3σ). The fabricated aptasensor was used to measure SEB in a real milk samples and validated using the ELISA method. Furthermore, a novel aptasensor FRET assay was established for the first time using 30 mol% Mn(2+) ions doped NaYF4:Yb/Er (20/2 mol%) UCNPs as the donor probes, which suggests that UCNPs are superior fluorescence labeling materials for food safety analysis.
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Affiliation(s)
- Shijia Wu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China
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OGI H. Wireless-electrodeless quartz-crystal-microbalance biosensors for studying interactions among biomolecules: a review. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2013; 89:401-17. [PMID: 24213205 PMCID: PMC3865356 DOI: 10.2183/pjab.89.401] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 09/02/2013] [Indexed: 05/24/2023]
Abstract
The mass sensitivity of quartz-crystal microbalance (QCM) was drastically improved by removing electrodes and wires attached on the quartz surfaces. Instead of wire connections, intended vibrations of quartz oscillators were excited and detected by antennas through electromagnetic waves. This noncontacting measurement is the key for ultrahigh-sensitive detection of proteins in liquids as well as quantitative measurements. This review shows the principle of wireless QCMs, their applications to studying interactions among biomolecules and aggregation reactions of amyloid β peptides, and the next-generation MEMS QCM, the resonance acoustic microbalance with naked embedded quartz (RAMNE-Q).
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Affiliation(s)
- Hirotsugu OGI
- Graduate School of Engineering, Osaka University, Osaka, Japan
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Kato F, Ogi H, Yanagida T, Nishikawa S, Hirao M, Nishiyama M. Resonance acoustic microbalance with naked-embedded quartz (RAMNE-Q) biosensor fabricated by microelectromechanical-system process. Biosens Bioelectron 2012; 33:139-45. [DOI: 10.1016/j.bios.2011.12.047] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 12/18/2011] [Accepted: 12/23/2011] [Indexed: 11/25/2022]
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Pekdemir ME, Ertürkan D, Külah H, Boyacı İH, Özgen C, Tamer U. Ultrasensitive and selective homogeneous sandwich immunoassay detection by Surface Enhanced Raman Scattering (SERS). Analyst 2012; 137:4834-40. [DOI: 10.1039/c2an35471c] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Liu N, Zhao Z, Chen Y, Gao Z. Rapid Detection of Staphylococcal Enterotoxin B by Two-Dimensional Molecularly Imprinted Film-Coated Quartz Crystal Microbalance. ANAL LETT 2012. [DOI: 10.1080/00032719.2011.633186] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Piezoelectric immunosensor for direct and rapid detection of staphylococcal enterotoxin A (SEA) at the ng level. Biosens Bioelectron 2011; 29:140-4. [DOI: 10.1016/j.bios.2011.08.007] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Revised: 08/02/2011] [Accepted: 08/03/2011] [Indexed: 11/20/2022]
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Yoshimine H, Kojima T, Furusawa H, Okahata Y. Small Mass-Change Detectable Quartz Crystal Microbalance and Its Application to Enzymatic One-Base Elongation on DNA. Anal Chem 2011; 83:8741-7. [DOI: 10.1021/ac202224d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Hiroshi Yoshimine
- Department of Biomolecular Engineering, Tokyo Institute of Technology and SENTAN, JST, 4259 Nagatsuda, Midori-ku, Yokohama 226-8501, Japan
| | - Taisuke Kojima
- Department of Biomolecular Engineering, Tokyo Institute of Technology and SENTAN, JST, 4259 Nagatsuda, Midori-ku, Yokohama 226-8501, Japan
| | - Hiroyuki Furusawa
- Department of Biomolecular Engineering, Tokyo Institute of Technology and SENTAN, JST, 4259 Nagatsuda, Midori-ku, Yokohama 226-8501, Japan
| | - Yoshio Okahata
- Department of Biomolecular Engineering, Tokyo Institute of Technology and SENTAN, JST, 4259 Nagatsuda, Midori-ku, Yokohama 226-8501, Japan
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Ogi H, Yanagida T, Hirao M, Nishiyama M. Replacement-free mass-amplified sandwich assay with 180-MHz electrodeless quartz-crystal microbalance biosensor. Biosens Bioelectron 2011; 26:4819-22. [DOI: 10.1016/j.bios.2011.05.035] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2011] [Revised: 04/28/2011] [Accepted: 05/23/2011] [Indexed: 10/18/2022]
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An ultrasensitive immunosensor array for determination of staphylococcal enterotoxin B. Talanta 2011; 85:1070-4. [DOI: 10.1016/j.talanta.2011.05.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 05/05/2011] [Accepted: 05/12/2011] [Indexed: 11/18/2022]
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Ogi H, Fukunishi Y, Yanagida T, Yagi H, Goto Y, Fukushima M, Uesugi K, Hirao M. Seed-dependent deposition behavior of Aβ peptides studied with wireless quartz-crystal-microbalance biosensor. Anal Chem 2011; 83:4982-8. [PMID: 21557621 DOI: 10.1021/ac2007703] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Real-time monitoring of the deposition processes of Aβ1-40 and Aβ1-42 peptides on various seeds has been performed using a 55 MHz wireless quartz-crystal microbalance (QCM) over long-time periods (~40 h). Dissolved peptide solutions were stirred for nucleation and growth of seeds at pH = 7.4 and 4.6, which were immobilized on the sensor chips. The isolated Aβ peptides were then flowed at the neutral pH, focusing on the interaction between the seeds and the monomers (or small multimers), excluding other interactions among seeds and other aggregates. The thioflavin-T fluorescence assay and atomic-force microscopy were used for evaluating structures of the seeds and deposited aggregates. The deposition rate, determined by the frequency decrease, is about 100 monomers/nm(2)/year in the case of fibril formation. The notable deposition behavior was observed in the deposition of Aβ1-40 peptide on Aβ1-42 seeds grown at the lower pH, which can be an important model for Alzheimer's disease.
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Affiliation(s)
- Hirotsugu Ogi
- Graduate School of Engineering Science, Osaka University, Machikaneyama 1-3, Toyonaka, Osaka 560-8531, Japan.
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Liu F, Li Y, Song C, Dong B, Liu Z, Zhang K, Li H, Sun Y, Wei Y, Yang A, Yang K, Jin B. Highly sensitive microplate chemiluminescence enzyme immunoassay for the determination of staphylococcal enterotoxin B based on a pair of specific monoclonal antibodies and its application to various matrices. Anal Chem 2011; 82:7758-65. [PMID: 20799707 DOI: 10.1021/ac101666y] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A highly specific and sensitive microplate chemiluminescent enzyme immunoassay (CLEIA) was established and validated for the detection of staphylococcal enterotoxin B (SEB). A pair of monoclonal antibodies (mAbs) that recognizes different epitopes of SEB was selected from 20 SEB-specific mAbs, and the experimental conditions were examined and optimized for the development of the CLEIA. This method exhibited high performance with a dynamic range of 0.01-5 ng/mL, and the measured limit of detection (LOD) was 0.01 ng/mL. Intra- and interassay coefficient variations were all lower than 13% at three concentrations (0.2, 0.4, and 2 ng/mL). For specificity studies, when this method was applied to test staphylococcal enterotoxins A, C1, and D, no cross-reactivity was observed. It has been successfully applied to the analysis of SEB in a variety of environmental, biological and humoral matrices such as sewage, tap water, river water, roast beef, peanut butter, cured ham, 10% nonfat dry milk, milk, orange juice, and human urine and serum. The aim of this article is to show that the highly sensitive, specific, and simple microplate CLEIA, based on a pair of highly specific monoclonal antibodies, has potential applications for quantifying SEB in public health and military reconnaissance.
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Affiliation(s)
- Fei Liu
- Department of Immunology, The Fourth Military Medical University, No. 17 Changle West Road, Xi'an 710032, Shaanxi Province, People's Republic of China
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Ultrathin-film oscillator biosensors excited by ultrafast light pulses. Biosens Bioelectron 2010; 26:1273-7. [PMID: 20656469 DOI: 10.1016/j.bios.2010.06.074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2010] [Revised: 06/27/2010] [Accepted: 06/30/2010] [Indexed: 11/24/2022]
Abstract
Novel thin-film oscillator biosensors are developed using picosecond ultrasound method. 100-nm silicon-nitride thin films and 16-nm Pt thin films are used, and ultrashort light pulses are focused on their surfaces to excite the through-thickness resonance vibrations, which are detected by the delayed probe-light pulses using the optoelastic effect. Their fundamental resonance frequencies are 45 and 132 GHz, corresponding to theoretical mass sensitivities of 5.0×10(-5) and 2.2×10(-5) pg/cm(2)/Hz, respectively. These thin-film biosensors are used for detecting human immunoglobulin G (hIgG) with Staphylococcus aureus protein A nonspecifically immobilized on the film surfaces. Injection of a 5 nM analyte caused 2% decrease in the resonance frequency.
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Schnerr HR. Lead identification and optimization in crude samples using label free resonant acoustic profiling. J Mol Recognit 2010; 23:597-603. [DOI: 10.1002/jmr.1057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ogi H, Naga H, Fukunishi Y, Hirao M, Nishiyama M. 170-MHz Electrodeless Quartz Crystal Microbalance Biosensor: Capability and Limitation of Higher Frequency Measurement. Anal Chem 2009; 81:8068-73. [DOI: 10.1021/ac901267b] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hirotsugu Ogi
- Graduate School of Engineering Science, Osaka University, Machikaneyama 1-3, Toyonaka, Osaka 560-8531, Japan, and Central Workshop, Osaka University, Machikaneyama 1-2, Toyonaka, Osaka 560-0043, Japan
| | - Hironao Naga
- Graduate School of Engineering Science, Osaka University, Machikaneyama 1-3, Toyonaka, Osaka 560-8531, Japan, and Central Workshop, Osaka University, Machikaneyama 1-2, Toyonaka, Osaka 560-0043, Japan
| | - Yuji Fukunishi
- Graduate School of Engineering Science, Osaka University, Machikaneyama 1-3, Toyonaka, Osaka 560-8531, Japan, and Central Workshop, Osaka University, Machikaneyama 1-2, Toyonaka, Osaka 560-0043, Japan
| | - Masahiko Hirao
- Graduate School of Engineering Science, Osaka University, Machikaneyama 1-3, Toyonaka, Osaka 560-8531, Japan, and Central Workshop, Osaka University, Machikaneyama 1-2, Toyonaka, Osaka 560-0043, Japan
| | - Masayoshi Nishiyama
- Graduate School of Engineering Science, Osaka University, Machikaneyama 1-3, Toyonaka, Osaka 560-8531, Japan, and Central Workshop, Osaka University, Machikaneyama 1-2, Toyonaka, Osaka 560-0043, Japan
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