1
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Jia BJ, Lin M, Wang JP, Wu NP. Synthesis of molecularly imprinted microspheres and development of a fluorescence method for detection of chloramphenicol in meat. LUMINESCENCE 2021; 36:1767-1774. [PMID: 34270836 DOI: 10.1002/bio.4121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/10/2021] [Accepted: 07/13/2021] [Indexed: 12/27/2022]
Abstract
In this study, nitrobenzene was used as dummy template to synthesize a type of specific molecularly imprinted microspheres for chloramphenicol, and 4-nitroaniline was coupled with three fluorophores to synthesize three fluorescent tracers. Then a competitive fluorescence method was developed on a conventional microplate for detection of chloramphenicol in chicken and pork samples. This method contained only one sample-loading step, so one assay was finished within 30 min. The IC50 was 1.8 ng/ml, and the limit of detection was 0.06 ng/g. The recoveries from chloramphenicol-fortified blank meat samples were in the range 67.5-96.2%. Furthermore, this method could be recycled three times. The detection results for some real meat samples were identical to that of a LC-MS/MS method. Therefore, this method could be used as a practical tool for routine screening for the residue of chloramphenicol in large number of meat samples.
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Affiliation(s)
- Bing Jie Jia
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei, China
| | - Min Lin
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei, China
| | - Jian Ping Wang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, Hebei, China
| | - Ning Peng Wu
- Henan Institute of Veterinary Drug and Feed Control, Zhengzhou, Henan, China
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2
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Zhang T, Zhang L, Liu JX, Wang JP, Wu NP. Development of a molecularly imprinted microspheres-based microplate fluorescence method for detection of amantadine and rimantadine in chicken. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:1136-1147. [PMID: 33989121 DOI: 10.1080/19440049.2021.1914868] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
In this study, molecularly imprinted microspheres of a type capable of recognising amantadine and rimantadine were first synthesised, and three fluorescent tracers based on dansyl chloride, fluorescein isothiocyanate and 5-carboxytetramethylrhodamine were also synthesised. These reagents were used to develop and optimise a direct competitive fluorescence method on conventional 96-well microplate for detection of the two analytes. Results showed that this method achieved simple operation procedure, rapid assay process (30 min), high sensitivity (limits of detection 0.04-0.05 ng mL-1) and acceptable recycle performance (five times). After optimisation of several parameters, this method was used to detect amantadine and rimantadine in chicken muscle samples. Their recoveries from standards fortified blank samples were in the range of 62.3-93.7%. The analysis results for some real chicken samples were consistent with a confirmatory LC-MS/MS method. Therefore, this method could be used as a rapid, simple and accurate tool for routine screening the residues of amantadine and rimantadine in a large number of chicken muscle samples.
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Affiliation(s)
- Teng Zhang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Lei Zhang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Ju Xiang Liu
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Jian Ping Wang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Ning Peng Wu
- Henan Institute of Veterinary Drug and Feed Control, Zhengzhou Henan, China
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3
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Liu W, Liu J, Huang A, Shi S, Yao T. An artificial intelligence process of immunoassay for multiple biomarkers based on logic gates. Analyst 2021; 146:889-895. [PMID: 33237051 DOI: 10.1039/d0an01844a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We present a universal platform to synchronously analyze the possible existing state of two protein biomarkers. This platform is based on the integration of three logic gates: NAND, OR and NOT. These logic gates were constructed by the principle of immune recognition and fluorescence quenching between fluorescein labelled antibodies/antigens and antibody-conjugated graphene oxide (GO). An artificial intelligence (AI) protein analysis process was designed by us and accordingly a small program was written in JAVA. This protein analysis process with its JAVA code may be applied to give logic judgments on the possible existing state of two protein components. We expect that our fundamental research on multiple biomarker analysis can provide potential application in AI-assisted medical diagnosis with the interface for remote medical treatment.
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Affiliation(s)
- Wenjie Liu
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Rd, Shanghai, 200092, PR China.
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4
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An ultrasensitive, homogeneous fluorescence quenching immunoassay integrating separation and detection of aflatoxin M 1 based on magnetic graphene composites. Mikrochim Acta 2021; 188:59. [PMID: 33507410 DOI: 10.1007/s00604-021-04715-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 01/17/2021] [Indexed: 01/24/2023]
Abstract
A homogeneous fluorescence quenching immunoassay is described for simultaneous separation and detection of aflatoxin M1 (AFM1) in milk. The novel assay relies on monoclonal antibody (mAb) functionalized Fe3O4 decorated reduced-graphene oxide (rGO-Fe3O4-mAb) as both capture probe and energy acceptor, combined with tetramethylrhodamine cadaverine-labeled aflatoxin B1 (AFB1-TRCA) as the energy donor. In the assay, AFB1-TRCA binds to rGO-Fe3O4-mAb in the absence of AFM1, quenching the fluorescence of TRCA by resonance energy transfer. Significantly, the immunoassay integrates sample preparation and detection into a single step, by using magnetic graphene composites to avoid washing and centrifugation steps, and the assay can be completed within 10 min. Under optimized conditions, the visual and quantitative detection limits of the assay for AFM1 were 50 and 3.8 ng L-1, respectively, which were significantly lower than those obtained by fluorescence polarization immunoassay using the same immunoreagents. Owing to its operation and highly sensitivity, the proposed assay provides a powerful tool for the detection of AFM1.
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5
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Antibody engineering-driven controllable chemiluminescence resonance energy transfer for immunoassay with tunable dynamic range. Anal Chim Acta 2021; 1152:338231. [PMID: 33648650 DOI: 10.1016/j.aca.2021.338231] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/10/2020] [Accepted: 01/15/2021] [Indexed: 11/22/2022]
Abstract
The donor-acceptor distance is a critical factor for the occurrence of chemiluminescent resonance energy transfer (CRET). We herein evaluate the donor-acceptor distance and transfer efficiency of CRET immunoassays of a series of donors which contain different sized antibody fragments, intact monoclonal antibody (IgG), antigen binding fragment (Fab), and single chain fragment antibody (scFv). Core/multishell quantum dots were used as the acceptor in three CRET systems. IgG is the maximum antibody fragment, leading to the longest donor-acceptor distance and the lowest transfer efficiency. Donors with Fab and scFv show significantly decreased distance and increased transfer efficiency. These results suggest an inverse correlation between donor size and transfer efficiency and can be used to provide guidance for the construction of controllable CRET. By combining the controllable CRET with immunoassay, we further develop a tunable sulfamethazine analytical system. Three different sized donors based CRET immunoassay show a markedly different sensitivity and dynamic range. Such adjustable detection provides greater flexibility for contaminant detection in different foodstuffs with different residue limits. This work not only illustrates the effect of donor-acceptor distance on regulating the energy transfer efficiency of CRET system, but also provides a guideline for the construction of a tunable immunoassay.
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6
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Multi-walled carbon nanotubes modified with iron oxide and manganese dioxide (MWCNTs-Fe3O4−MnO2) as a novel adsorbent for the determination of BPA. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104867] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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7
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Detection of biotin with zeptomole sensitivity using recombinant spores and a competition assay. Anal Bioanal Chem 2020; 412:7219-7226. [PMID: 32761258 DOI: 10.1007/s00216-020-02854-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 07/22/2020] [Accepted: 07/30/2020] [Indexed: 10/23/2022]
Abstract
Detection of protein-binding analytes is important for many applications. Currently, various instrument-based techniques are used for detecting protein-binding analytes. However, such techniques have several limitations including high cost and time-consuming sample processing. In order to overcome these limitations, we developed a sensitive competition assay for the detection of protein-binding analytes using recombinant endospores as a sensing element. The method is based on the competition between the biotin, the model analyte, and a biotin-magnetic bead complex to bind the recombinant spores containing the biotin binding region of streptavidin. After magnetic attraction, the residual spores in the suspension are spread on plates to form colonies which are used to count the amount of the residual spores; the higher the residual ratio of spores, the more biotin in the samples. The linear range was from 150 zmol to 1.5 fmol and the limit of detection of the assay was 150 zmol. The assay proposed herein is sensitive and does not require any expensive equipment. It is suitable for qualitative or semi-quantitative analysis such as screening tests for the detection of toxic chemicals.
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8
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Kanai Y, Ohmuro-Matsuyama Y, Tanioku M, Ushiba S, Ono T, Inoue K, Kitaguchi T, Kimura M, Ueda H, Matsumoto K. Graphene Field Effect Transistor-Based Immunosensor for Ultrasensitive Noncompetitive Detection of Small Antigens. ACS Sens 2020; 5:24-28. [PMID: 31922395 DOI: 10.1021/acssensors.9b02137] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Due to its high carrier mobility, graphene is considered a suitable material for use in field-effect transistors. However, its application to immunosensing of small molecules is still elusive. To investigate the potential of graphene field effect transistors (G-FET) as a sensor for small molecules with small or no charge, we applied the open-sandwich immunoassay (OS-IA), which detects low-molecular-weight antigens noncompetitively, to G-FET. Using an antibody variable fragment VL immobilized on graphene and a hyperacidic region of amyloid precursor protein fused to the other variable fragment VH, we successfully detected a small antigen peptide consisting of 7 amino acids (BGP-C7), with a more than 100-fold increase in sensitivity compared with that measured by enzyme-linked OS-IA. Furthermore, we succeeded in detecting BGP-C7 in the presence of human serum with similar sensitivity, suggesting its potential application in clinical diagnostics.
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Affiliation(s)
- Yasushi Kanai
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Yuki Ohmuro-Matsuyama
- Laboratory for Chemistry and Life Sciences, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho, Yokohama, Kanagawa 226-8503, Japan
| | - Masami Tanioku
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Shota Ushiba
- Murata Manufacturing Co. Ltd., Higashikotari, Nagaokakyo-shi, Kyoto 617-8555, Japan
| | - Takao Ono
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Koichi Inoue
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Tetsuya Kitaguchi
- Laboratory for Chemistry and Life Sciences, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho, Yokohama, Kanagawa 226-8503, Japan
| | - Masahiko Kimura
- Murata Manufacturing Co. Ltd., Higashikotari, Nagaokakyo-shi, Kyoto 617-8555, Japan
| | - Hiroshi Ueda
- Laboratory for Chemistry and Life Sciences, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho, Yokohama, Kanagawa 226-8503, Japan
| | - Kazuhiko Matsumoto
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
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9
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A graphene-based chemiluminescence resonance energy transfer immunoassay for detection of phenothiazines in pig urine. Microchem J 2019. [DOI: 10.1016/j.microc.2019.03.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Novel microporous β-cyclodextrin polymer as sorbent for solid-phase extraction of bisphenols in water samples and orange juice. Talanta 2018; 187:207-215. [DOI: 10.1016/j.talanta.2018.05.030] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 04/27/2018] [Accepted: 05/08/2018] [Indexed: 11/17/2022]
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11
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Yan X, Le XC, Zhang H. Antibody-Bridged Beacon for Homogeneous Detection of Small Molecules. Anal Chem 2018; 90:9667-9672. [DOI: 10.1021/acs.analchem.8b02510] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaowen Yan
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta T6G 2G3, Canada
| | - X. Chris Le
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta T6G 2G3, Canada
| | - Hongquan Zhang
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta T6G 2G3, Canada
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12
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Huang A, Zhang L, Li W, Ma Z, Shuo S, Yao T. Controlled fluorescence quenching by antibody-conjugated graphene oxide to measure tau protein. ROYAL SOCIETY OPEN SCIENCE 2018; 5:171808. [PMID: 29765647 PMCID: PMC5936912 DOI: 10.1098/rsos.171808] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/09/2018] [Indexed: 05/31/2023]
Abstract
We report an ultrasensitive immunoassay for tau protein-a key marker of Alzheimer's disease. This sensing platform relies on graphene oxide (GO) surfaces conjugated with anti-human tau antibody to provide quantitative binding sites for the tau protein. The GO quenches standard fluorescein isothiocyanate labelled tau (tau-FITC) when tau protein and tau-FITC are both present and compete for the binding sites. This change in fluorescence signal can be used to quantitate tau protein. In contrast with traditional enzyme-linked immunosorbent assay (ELISA), our method does not require enzyme-linked secondary antibodies for protein recognition nor does it require an enzyme substrate for optical signal generation. This requires fewer reagents and has less systematic error than the antigen-antibody recognition steps in ELISA. Our method has a tau protein detection limit of 0.14 pmol ml-1 in buffer. This approach could be developed into a promising biosensor for the detection of tau protein and may be useful in the clinical diagnosis of tau-induced neurodegeneration syndromes.
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Affiliation(s)
- Ao Huang
- Authors for correspondence: Ao Huang e-mail:
| | | | | | | | - Shi Shuo
- Authors for correspondence: Shi Shuo e-mail:
| | - Tianming Yao
- Authors for correspondence: Tianming Yao e-mail:
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13
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2D Porous Aromatic Framework as a Novel Solid-Phase Extraction Adsorbent for the Determination of Trace BPA in Milk. Chromatographia 2018. [DOI: 10.1007/s10337-018-3504-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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14
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Li Y, Lu P, Cheng J, Wang Q, He C. Simultaneous Solid-Phase Extraction and Determination of Three Bisphenols in Water Samples and Orange Juice by a Porous β-Cyclodextrin Polymer. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-1131-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Huang A, Li W, Shi S, Yao T. Quantitative Fluorescence Quenching on Antibody-conjugated Graphene Oxide as a Platform for Protein Sensing. Sci Rep 2017; 7:40772. [PMID: 28084438 PMCID: PMC5233999 DOI: 10.1038/srep40772] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 12/09/2016] [Indexed: 02/05/2023] Open
Abstract
We created an immunosensing platform for the detection of proteins in a buffer solution. Our sensing platform relies on graphene oxide (GO) nanosheets conjugated with antibodies to provide quantitative binding sites for analyte proteins. When analyte proteins and standard fluorescein-labelled proteins are competing for the binding sites, the assay exhibits quantitative fluorescence quenching by GO for the fluorescein-labelled proteins as determined by the analyte protein concentration. Because of this mechanism, measured fluorescence intensity from unquenched fluorescein-labelled protein was shown to increase with an increasing analyte protein concentration. As an alternative to the conventional enzyme-linked immunosorbent assay (ELISA), our method does not require an enzyme-linked second antibody for protein recognition and the enzyme for optical signal measurement. Thus, it is beneficial with its low cost and fewer systematic errors caused by the series of antigen-antibody recognition steps in ELISA. Immune globulin G (IgG) was introduced as a model protein to test our method and our results showed that the limit of detection for IgG was 4.67 pmol mL-1 in the buffer solution. This sensing mechanism could be developed into a promising biosensor for the detection of proteins, which would broaden the spectrum of GO applications in both analytical biochemistry and clinical diagnosis.
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Affiliation(s)
- Ao Huang
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Rd, Shanghai, 200092, PR China
| | - Weiwei Li
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Rd, Shanghai, 200092, PR China
| | - Shuo Shi
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Rd, Shanghai, 200092, PR China
| | - Tianming Yao
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Rd, Shanghai, 200092, PR China
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16
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Yu L, Li P, Ding X, Zhang Q. Graphene oxide and carboxylated graphene oxide: Viable two-dimensional nanolabels for lateral flow immunoassays. Talanta 2016; 165:167-175. [PMID: 28153237 DOI: 10.1016/j.talanta.2016.12.042] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 12/05/2016] [Accepted: 12/20/2016] [Indexed: 12/18/2022]
Abstract
Graphene oxide (GO) and carboxylated GO were used as labels for lateral flow immunoassays, instead of the conventionally used colloidal gold and colored latex labels. A sensor is demonstrated that enables fast screening for aflatoxin B1 (AFB1) as a model analyte using the antibody-GO complex as the recognition element. The visual limit of detection and cut-off value for AFB1 are 0.3 and 1ng/mL, respectively. It is shown that GO and carboxylated GO are viable black labels for use in lateral flow assays, one typical advantage being the saving cost (compared to the use of colloidal gold). Qualitative results are achieved within 15min, and the analytical results were in good agreement with the reference LC MS/MS method. The method was successfully applied to the on-site determination of AFB1 in agricultural products. In our perception, it opens new possibilities for the screening of other toxins by lateral flow immunoassays using GO and carboxylated GO as labels.
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Affiliation(s)
- Li Yu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, PR China; Quality Inspection and Test Center for Oilseeds Products, Ministry of Agriculture, Wuhan 430062, PR China.
| | - Peiwu Li
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China; Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, PR China; Laboratory of Risk Assessment for Oilseeds Products (Wuhan), Ministry of Agriculture, 430062, PR China; Quality Inspection and Test Center for Oilseeds Products, Ministry of Agriculture, Wuhan 430062, PR China
| | - Xiaoxia Ding
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, PR China; Laboratory of Risk Assessment for Oilseeds Products (Wuhan), Ministry of Agriculture, 430062, PR China
| | - Qi Zhang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, PR China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, PR China
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A sensitive aptasensor based on molybdenum carbide nanotubes and label-free aptamer for detection of bisphenol A. Anal Bioanal Chem 2016; 409:1797-1803. [DOI: 10.1007/s00216-016-0123-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 11/19/2016] [Accepted: 11/28/2016] [Indexed: 12/19/2022]
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18
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Affiliation(s)
- Xiuli Fu
- School
of Chemistry and Chemical Engineering, Yantai University, Yantai, Shandong 264005, China
| | - Lingxin Chen
- School
of Chemistry and Chemical Engineering, Yantai University, Yantai, Shandong 264005, China
- Key
Laboratory of Coastal Environmental Processes and Ecological Remediation,
Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China
| | - Jaebum Choo
- Department
of Bionanotechnology, Hanyang University, Ansan, Gyeonggi 426-791, South Korea
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19
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A Graphene Oxide-Based Fluorescent Method for the Detection of Human Chorionic Gonadotropin. SENSORS 2016; 16:s16101699. [PMID: 27754379 PMCID: PMC5087487 DOI: 10.3390/s16101699] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 09/27/2016] [Accepted: 09/29/2016] [Indexed: 02/06/2023]
Abstract
Human chorionic gonadotropin (hCG) has been regarded as a biomarker for the diagnosis of pregnancy and some cancers. Because the currently used methods (e.g., disposable Point of Care Testing (POCT) device) for hCG detection require the use of many less stable antibodies, simple and cost-effective methods for the sensitive and selective detection of hCG have always been desired. In this work, we have developed a graphene oxide (GO)-based fluorescent platform for the detection of hCG using a fluorescein isothiocyanate (FITC)-labeled hCG-specific binding peptide aptamer (denoted as FITC-PPLRINRHILTR) as the probe, which can be manufactured cheaply and consistently. Specifically, FITC-PPLRINRHILTR adsorbed onto the surface of GO via electrostatic interaction showed a poor fluorescence signal. The specific binding of hCG to FITC-PPLRINRHILTR resulted in the release of the peptide from the GO surface. As a result, an enhanced fluorescence signal was observed. The fluorescence intensity was directly proportional to the hCG concentration in the range of 0.05–20 IU/mL. The detection limit was found to be 20 mIU/mL. The amenability of the strategy to hCG analysis in biological fluids was demonstrated by assaying hCG in the urine samples.
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20
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Cheng C, Wang S, Wu J, Yu Y, Li R, Eda S, Chen J, Feng G, Lawrie B, Hu A. Bisphenol A Sensors on Polyimide Fabricated by Laser Direct Writing for Onsite River Water Monitoring at Attomolar Concentration. ACS APPLIED MATERIALS & INTERFACES 2016; 8:17784-92. [PMID: 27351908 DOI: 10.1021/acsami.6b03743] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
This work presents an aptamer-based, highly sensitive and specific sensor for atto- to femtomolar level detection of bisphenol A (BPA). Because of its widespread use in numerous products, BPA enters surface water from effluent discharges during its manufacture, use, and from waste landfill sites throughout the world. On-site measurement of BPA concentrations in water is important for evaluating compliance with water quality standards or environmental risk levels of the harmful compound in the environment. The sensor in this work is porous, conducting, interdigitated electrodes that are formed by laser-induced carbonization of flexible polyimide sheets. BPA-specific aptamer is immobilized on the electrodes as the probe, and its binding with BPA at the electrode surface is detected by capacitive sensing. The binding process is aided by ac electroosmotic effect that accelerates the transport of BPA molecules to the nanoporous graphene-like structured electrodes. The sensor achieved a limit of detection of 58.28 aM with a response time of 20 s. The sensor is further applied for recovery analysis of BPA spiked in surface water. This work provides an affordable platform for highly sensitive, real time, and field-deployable BPA surveillance critical to the evaluation of the ecological impact of BPA exposure.
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Affiliation(s)
- Cheng Cheng
- Department of Electrical Engineering and Computer Science, The University of Tennessee , 1520 Middle Drive, Knoxville, Tennessee 37996, United States
| | - Shutong Wang
- Department of Mechanical, Aerospace and Biomedical Engineering, The University of Tennessee , 1512 Middle Drive, Knoxville, Tennessee 37996, United States
- College of Electronics and Information Engineering, Sichuan University , No. 24 South Section 1, Yihuan Road, Chengdu, 610065, PRC
| | - Jayne Wu
- Department of Electrical Engineering and Computer Science, The University of Tennessee , 1520 Middle Drive, Knoxville, Tennessee 37996, United States
| | - Yongchao Yu
- Department of Mechanical, Aerospace and Biomedical Engineering, The University of Tennessee , 1512 Middle Drive, Knoxville, Tennessee 37996, United States
| | - Ruozhou Li
- Department of Mechanical, Aerospace and Biomedical Engineering, The University of Tennessee , 1512 Middle Drive, Knoxville, Tennessee 37996, United States
| | - Shigetoshi Eda
- Department of Forestry, Wildlife and Fisheries, The University of Tennessee Institute of Agriculture , 2431 Joe Johnson Drive, Knoxville, Tennessee 37996, United States
| | - Jiangang Chen
- Department of Public Health, The University of Tennessee , 1914 Andy Holt Avenue, Knoxville, Tennessee 37996, United States
| | - Guoying Feng
- College of Electronics and Information Engineering, Sichuan University , No. 24 South Section 1, Yihuan Road, Chengdu, 610065, PRC
| | - Benjamin Lawrie
- Computing Science and Engineering Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
| | - Anming Hu
- Department of Mechanical, Aerospace and Biomedical Engineering, The University of Tennessee , 1512 Middle Drive, Knoxville, Tennessee 37996, United States
- Institute of Laser Engineering, Beijing University of Technology , 100 Pingleyuan, Chaoyang District, Beijing 100124, PRC
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21
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Ali Tahir A, Ullah H, Sudhagar P, Asri Mat Teridi M, Devadoss A, Sundaram S. The Application of Graphene and Its Derivatives to Energy Conversion, Storage, and Environmental and Biosensing Devices. CHEM REC 2016; 16:1591-634. [PMID: 27230414 DOI: 10.1002/tcr.201500279] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Indexed: 11/07/2022]
Abstract
Graphene (GR) and its derivatives are promising materials on the horizon of nanotechnology and material science and have attracted a tremendous amount of research interest in recent years. The unique atom-thick 2D structure with sp(2) hybridization and large specific surface area, high thermal conductivity, superior electron mobility, and chemical stability have made GR and its derivatives extremely attractive components for composite materials for solar energy conversion, energy storage, environmental purification, and biosensor applications. This review gives a brief introduction of GR's unique structure, band structure engineering, physical and chemical properties, and recent energy-related progress of GR-based materials in the fields of energy conversion (e.g., photocatalysis, photoelectrochemical water splitting, CO2 reduction, dye-sensitized and organic solar cells, and photosensitizers in photovoltaic devices) and energy storage (batteries, fuel cells, and supercapacitors). The vast coverage of advancements in environmental applications of GR-based materials for photocatalytic degradation of organic pollutants, gas sensing, and removal of heavy-metal ions is presented. Additionally, the use of graphene composites in the biosensing field is discussed. We conclude the review with remarks on the challenges, prospects, and further development of GR-based materials in the exciting fields of energy, environment, and bioscience.
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Affiliation(s)
- Asif Ali Tahir
- Environment and Sustainability Institute (ESI) University of Exeter Penryn Campus, Penryn, Cornwall, TR10 9FE, UK
| | - Habib Ullah
- Environment and Sustainability Institute (ESI) University of Exeter Penryn Campus, Penryn, Cornwall, TR10 9FE, UK.
| | - Pitchaimuthu Sudhagar
- School of Chemistry and Chemical Engineering Queen's University Belfast David Keir Building, Belfast, BT9 5AG, UK.
| | - Mohd Asri Mat Teridi
- Solar Energy Research Institute National University of Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Anitha Devadoss
- College of Engineering Swansea University, Singleton Park, Swansea, SA2 8PP, UK.
| | - Senthilarasu Sundaram
- Environment and Sustainability Institute (ESI) University of Exeter Penryn Campus, Penryn, Cornwall, TR10 9FE, UK
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22
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Label-free DNA Y junction for bisphenol A monitoring using exonuclease III-based signal protection strategy. Biosens Bioelectron 2016; 77:277-83. [DOI: 10.1016/j.bios.2015.09.042] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 09/17/2015] [Accepted: 09/18/2015] [Indexed: 12/20/2022]
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23
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Hu X, Wu X, Yang F, Wang Q, He C, Liu S. Novel surface dummy molecularly imprinted silica as sorbent for solid-phase extraction of bisphenol A from water samples. Talanta 2016; 148:29-36. [DOI: 10.1016/j.talanta.2015.10.057] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/17/2015] [Accepted: 10/22/2015] [Indexed: 10/22/2022]
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24
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Zaharov VV, Farahi RH, Snyder PJ, Davison BH, Passian A. Karhunen-Loève treatment to remove noise and facilitate data analysis in sensing, spectroscopy and other applications. Analyst 2015; 139:5927-35. [PMID: 25252650 DOI: 10.1039/c4an01300j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Resolving weak spectral variations in the dynamic response of materials that are either dominated or excited by stochastic processes remains a challenge. Responses that are thermal in origin are particularly relevant examples due to the delocalized nature of heat. Despite its inherent properties in dealing with stochastic processes, the Karhunen-Loève expansion has not been fully exploited in measurement of systems that are driven solely by random forces or can exhibit large thermally driven random fluctuations. Here, we present experimental results and analysis of the archetypes (a) the resonant excitation and transient response of an atomic force microscope probe by the ambient random fluctuations and nanoscale photothermal sample response, and (b) the photothermally scattered photons in pump-probe spectroscopy. In each case, the dynamic process is represented as an infinite series with random coefficients to obtain pertinent frequency shifts and spectral peaks and demonstrate spectral enhancement for a set of compounds including the spectrally complex biomass. The considered cases find important applications in nanoscale material characterization, biosensing, and spectral identification of biological and chemical agents.
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Affiliation(s)
- V V Zaharov
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6123, USA.
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25
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Yu D, Hu X, Wei S, Wang Q, He C, Liu S. Dummy molecularly imprinted mesoporous silica prepared by hybrid imprinting method for solid-phase extraction of bisphenol A. J Chromatogr A 2015; 1396:17-24. [DOI: 10.1016/j.chroma.2015.04.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Revised: 04/01/2015] [Accepted: 04/02/2015] [Indexed: 11/26/2022]
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26
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Zhang B, Liu B, Chen G, Tang D. Redox and catalysis ‘all-in-one’ infinite coordination polymer for electrochemical immunosensor of tumor markers. Biosens Bioelectron 2015; 64:6-12. [DOI: 10.1016/j.bios.2014.08.024] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 08/13/2014] [Accepted: 08/15/2014] [Indexed: 10/24/2022]
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27
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Ge S, Lan F, Yu F, Yu J. Applications of graphene and related nanomaterials in analytical chemistry. NEW J CHEM 2015. [DOI: 10.1039/c4nj01783h] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Graphene and its related materials remain a very bright and exciting prospect in analytical chemistry.
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Affiliation(s)
- Shenguang Ge
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan)
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Feifei Lan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan)
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Feng Yu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| | - Jinghua Yu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan)
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
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28
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Lin Y, Hu L, Li L, Wang K. Facile synthesis of nickel hydroxide–graphene nanocomposites for insulin detection with enhanced electro-oxidation properties. RSC Adv 2014. [DOI: 10.1039/c4ra06648k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study describes a facile and effective one-pot route to synthesize structurally uniform and electrochemically active nickel hydroxide–graphene nanocomposites (Ni(OH)2–GN) and investigates the electrocatalytic activity toward the oxidation of insulin.
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Affiliation(s)
- Yuqing Lin
- Department of Chemistry
- Capital Normal University
- Beijing 100048, China
| | - Lianglu Hu
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241000, China
| | - Linbo Li
- Department of Chemistry
- Capital Normal University
- Beijing 100048, China
| | - Keqing Wang
- Department of Chemistry
- Capital Normal University
- Beijing 100048, China
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