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Liang J, Li X, Huang B, Pan Y, Zhuang Z, Ye Q, Peng C, Deng H, Yi Y, Zhang B, Chen P, Chen X. Rapid, on-site quantitative determination of mycotoxins in grains using a multiple time-resolved fluorescent microsphere immunochromatographic test strip. Biosens Bioelectron 2024; 258:116357. [PMID: 38729049 DOI: 10.1016/j.bios.2024.116357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 04/21/2024] [Accepted: 05/01/2024] [Indexed: 05/12/2024]
Abstract
The label probe plays a crucial role in enhancing the sensitivity of lateral flow immunoassays. However, conventional fluorescent microspheres (FMs) have limitations due to their short fluorescence lifetime, susceptibility to background fluorescence interference, and inability to facilitate multi-component detection. In this study, carboxylate-modified Eu(III)-chelate-doped polystyrene nanobeads were employed as label probes to construct a multiple time-resolved fluorescent microsphere-based immunochromatographic test strip (TRFM-ICTS). This novel TRFM-ICTS facilitated rapid on-site quantitative detection of three mycotoxins in grains: Aflatoxin B1 (AFB1), Zearalenone (ZEN), and Deoxynivalenol (DON). The limit of detection (LOD) for AFB1, ZEN, and DON were found to be 0.03 ng/g, 0.11 ng/g, and 0.81 ng/g, respectively. Furthermore, the TRFM-ICTS demonstrated a wide detection range for AFB1 (0.05-8.1 ng/g), ZEN (0.125-25 ng/g), and DON (1.0-234 ng/g), while maintaining excellent selectivity. Notably, the test strip exhibited remarkable stability, retaining its detection capability even after storage at 4 °C for over one year. Importantly, the detection of these mycotoxins relied solely on simple manual operations, and with a portable reader, on-site detection could be accomplished within 20 min. This TRFM-ICTS presents a promising solution for sensitive on-site mycotoxin detection, suitable for practical application in various settings due to its sensitivity, accuracy, simplicity, and portability.
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Affiliation(s)
- JunFa Liang
- Guangzhou Institute of Food Inspection, Guangzhou, 511400, PR China
| | - Xuewei Li
- Department of Forensic Toxicology, School of Forensic Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Bin Huang
- Shenzhen Lvshiyuan Biotechnology Co., Ltd., Shenzhen, 518100, PR China
| | - Yupeng Pan
- Department of Forensic Toxicology, School of Forensic Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Zile Zhuang
- Department of Forensic Toxicology, School of Forensic Medicine, Southern Medical University, Guangzhou, 510515, PR China
| | - Qiuxiong Ye
- Guangzhou Institute of Food Inspection, Guangzhou, 511400, PR China
| | - Cheng Peng
- Guangzhou Institute of Food Inspection, Guangzhou, 511400, PR China
| | - Huangyi Deng
- Guangdong Institute of Food Inspection, Guangzhou, 510000, PR China
| | - Yunting Yi
- Guangzhou Institute of Food Inspection, Guangzhou, 511400, PR China
| | - Binbin Zhang
- Guangzhou Institute of Food Inspection, Guangzhou, 511400, PR China
| | - Peiyi Chen
- Guangzhou Institute of Food Inspection, Guangzhou, 511400, PR China
| | - Xuncai Chen
- Department of Forensic Toxicology, School of Forensic Medicine, Southern Medical University, Guangzhou, 510515, PR China.
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2
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Niu Y, Yu W, Yang S, Wan Q. Understanding the relationship between pore size, surface charge density, and Cu 2+ adsorption in mesoporous silica. Sci Rep 2024; 14:13521. [PMID: 38866864 PMCID: PMC11169565 DOI: 10.1038/s41598-024-64337-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 06/07/2024] [Indexed: 06/14/2024] Open
Abstract
This research delved into the influence of mesoporous silica's surface charge density on the adsorption of Cu2+. The synthesis of mesoporous silica employed the hydrothermal method, with pore size controlled by varying the length of trimethylammonium bromide (CnTAB, n = 12, 14, 16) chains. Gas adsorption techniques and transmission electron microscopy characterized the mesoporous silica structure. Surface charge densities of the mesoporous silica were determined through potentiometric titration, while surface hydroxyl densities were assessed using the thermogravimetric method. Subsequently, batch adsorption experiments were conducted to study the adsorption of Cu2+ in mesoporous silica, and the process was comprehensively analyzed using Atomic absorption spectrometry (AAS), Fourier transform infrared (FTIR), and L3 edge X-ray absorption near edge structure (XANES). The research findings suggest a positive correlation between the pore size of mesoporous silica, its surface charge density, and the adsorption capacity for Cu2+. More specifically, as the pore size increases within the 3-4.1 nm range, the surface charge density and the adsorption capacity for Cu2+ also increase. Our findings provide valuable insights into the relationship between the physicochemical properties of mesoporous silica and the adsorption behavior of Cu2+, offering potential applications in areas such as environmental remediation and catalysis.
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Affiliation(s)
- Yanhui Niu
- School of Chemistry and Materials Science, Guizhou Education University, Guiyang, 550018, China
| | - Wenbin Yu
- State Key Laboratory of Ore Deposit Geochemistry, Chinese Academy of Sciences, Institute of Geochemistry, Guiyang, 550081, China
| | - Shuguang Yang
- State Key Laboratory of Ore Deposit Geochemistry, Chinese Academy of Sciences, Institute of Geochemistry, Guiyang, 550081, China
| | - Quan Wan
- State Key Laboratory of Ore Deposit Geochemistry, Chinese Academy of Sciences, Institute of Geochemistry, Guiyang, 550081, China.
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3
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Myndrul V, Yanovska A, Babayevska N, Korniienko V, Diedkova K, Jancelewicz M, Pogorielov M, Iatsunskyi I. 1D ZnO-Au nanocomposites as label-free photoluminescence immunosensors for rapid detection of Listeria monocytogenes. Talanta 2024; 271:125641. [PMID: 38218055 DOI: 10.1016/j.talanta.2024.125641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/15/2024]
Abstract
In this study, we explore the potential of 1D ZnO-Au nanocomposites as innovative label-free photoluminescence (PL) immunosensors for rapidly detecting Listeria monocytogenes, a significant concern in food safety. We synthesized ZnO nanorods (ZnO_NR) and nanowires (ZnO_NW), followed by Au deposition to create ZnO_NR/Au and ZnO_NW/Au nanocomposites. Our analyses, including SEM, TEM, Raman spectroscopy, and photoluminescence (PL), revealed distinct structural and optical properties of these nanocomposites, especially noting the superior crystallinity and stability of ZnO_NR/Au. The biosensor performance was evaluated through PL sensitivity to Anti-Listeria antibodies, demonstrating that ZnO_NR with higher concentration of Au nanoparticles exhibited higher sensitivity and a lower limit of detection (LOD), attributed to a greater density of Listeria binding sites. The developed biosensor demonstrated a remarkable limit of detection (LOD) of 8.3 × 102 CFU/mL, rivaling or surpassing conventional culture-based methods and some molecular techniques. This research underscores the critical role of Au deposition duration in optimizing biosensor performance and presents a promising advancement in rapid and sensitive Listeria detection, with significant implications for enhancing food safety protocols.
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Affiliation(s)
- Valerii Myndrul
- Sensor Engineering Department, Faculty of Science and Engineering, Maastricht University, 6200 MD Maastricht, the Netherlands
| | - Anna Yanovska
- Theoretical and Applied Chemistry Department, Sumy State University, M, Sumtsova Str., 2, 40007, Sumy, Ukraine
| | - Nataliya Babayevska
- NanoBioMedical Centre, Adam Mickiewicz University, 3, Wszechnicy Piastowskiej Str., 61 614 Poznan, Poland
| | - Viktoriia Korniienko
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Riga, Latvia; Biomedical Research Center, Medical Institute, Sumy State University, Sanatornaya St. 31, 40018, Sumy, Ukraine
| | - Kateryna Diedkova
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Riga, Latvia; Biomedical Research Center, Medical Institute, Sumy State University, Sanatornaya St. 31, 40018, Sumy, Ukraine
| | - Mariusz Jancelewicz
- NanoBioMedical Centre, Adam Mickiewicz University, 3, Wszechnicy Piastowskiej Str., 61 614 Poznan, Poland
| | - Maksym Pogorielov
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Riga, Latvia.
| | - Igor Iatsunskyi
- NanoBioMedical Centre, Adam Mickiewicz University, 3, Wszechnicy Piastowskiej Str., 61 614 Poznan, Poland.
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4
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Zhu L, Zeng W, Li Y, Han Y, Wei J, Wu L. Development of magnetic fluorescence aptasensor for sensitive detection of saxitoxin based on Fe 3O 4@Au-Pt nanozymes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 921:171236. [PMID: 38412877 DOI: 10.1016/j.scitotenv.2024.171236] [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: 11/17/2023] [Revised: 02/07/2024] [Accepted: 02/15/2024] [Indexed: 02/29/2024]
Abstract
In this work, on the basis of Fe3O4@Au-Pt nanozymes (MAP NZs) and aptamer recognition, a magnetic fluorescent aptasensor (MFA) was developed for sensitive and accurate detection of saxitoxin (STX). With the bridge of STX aptamer (AptSTX) and complementary DNA (cDNA), AptSTX decorated MAP NZs (MAP/Apt) and cDNA modified green quantum dots (cDNA@g-QDs) were connected to form MAP/Apt-cDNA@g-QDs complex. As STX behaves a strong binding ability towards AptSTX, it will compete with cDNA and hybridize with Apt to release cDNA@g-QDs. With the addition of TMB, MAP will catalyze TMB to the oxidized TMB (ox-TMB), thereby quenching the fluorescence of g-QDs due to the inner filter effect. Based on this finding, the quantitative relationship between the change in fluorescence of gQDs and STX concentration was explored with a limit of detection (LOD, S/N = 3) of 0.6 nM. An internal standard signal of oxTMB was adopted and reduced the fluctuation of fluorescence signal output. Besides, the fluorescence probe can selectively recognize and detect STX among five marine toxins. Eventually, the MFA method behaved good performance in detecting seafood samples with recoveries of 82.0 % ∼ 102.6 % as well as coefficient of variations (CV) of 7.2 % ∼ 10.3 %. Therefore, the method with internal signal is hopeful to be a potential candidate for sensitive and accurate detection of STX in seafood.
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Affiliation(s)
- Lin Zhu
- Hubei Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, College of Life Sciences and Technology, Hubei Engineering University, Xiaogan, 432000, Hubei, PR China
| | - Wei Zeng
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Seafood Processing of Haikou, School of Food Science and Technology, Hainan University, Hainan 570228, PR China
| | - Yueqing Li
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Seafood Processing of Haikou, School of Food Science and Technology, Hainan University, Hainan 570228, PR China
| | - Yu Han
- Hubei Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, College of Life Sciences and Technology, Hubei Engineering University, Xiaogan, 432000, Hubei, PR China
| | - Jing Wei
- Hainan Institute for Food Control, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Haikou 570314, PR China
| | - Long Wu
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Seafood Processing of Haikou, School of Food Science and Technology, Hainan University, Hainan 570228, PR China.
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5
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Wu H, Bu T, Sun B, Xi J, Cao Y, Wang Y, Xuan C, Feng Q, Yan H, Wang L. "Three-in-One" Multifunctional Hollow Nanocages with Colorimetric Photothermal Catalytic Activity for Enhancing Sensitivity in Biosensing. Anal Chem 2024; 96:4825-4834. [PMID: 38364099 DOI: 10.1021/acs.analchem.3c04899] [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: 02/18/2024]
Abstract
Immunochromatographic assays (ICAs) have been widely used in the field detection of mycotoxin contaminants. Nevertheless, the lack of multisignal readout capability and the ability of signaling tags to maintain their biological activity while efficiently loading antibodies remain a great challenge in satisfying diverse testing demands. Herein, we proposed a novel three-in-one multifunctional hollow vanadium nanomicrosphere (high brightness-catalytic-photothermal properties)-mediated triple-readout ICA (VHMS-ICA) for sensitive detection of T-2. As the key to this biosensing strategy, vanadium was used as the catalytic-photothermal characterization center, and natural polyphenols were utilized as the bridging ligands for coupling with the antibody while self-assembling with formaldehyde cross-linking into a hollow nanocage-like structure, which offers the possibility of realizing a three-signal readout strategy and improving the coupling efficiency to the antibody while preserving its biological activity. The constructed sensors showed a detection limit (LOD) of 2 pg/mL for T-2, which was about 345-fold higher than that of conventional gold nanoparticle-based ICA (0.596 ng/mL). As anticipated, the detection range of VHMS-ICA was extended about 8-fold compared with the colorimetric signal alone. Ultimately, the proposed immunosensor performed well in maize and oat samples, with satisfactory recoveries. Owing to the synergistic and complementary interactions between distinct signaling modes, the establishment of multimodal immunosensors with multifunctional tags is an efficient strategy to satisfy diversified detection demands.
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Affiliation(s)
- Haiyu Wu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Tong Bu
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, Henan 450002, China
| | - Boyang Sun
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jia Xi
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuanyuan Cao
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ying Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chenyu Xuan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qinlin Feng
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Huiqi Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Li Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
- GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, School of Chemistry, South China Normal University, Guangzhou, Guangdong 510006, PR China
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6
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Sun Y, Deng X, Luo C, Ma W, Liu W, Wang J, Li Q, Bu T, Zhang X. Time-resolved fluorescence microspheres-antibody-penicillin-binding protein assisted construction of immunochromatographic assay for sensitive detection of 22 β-lactams in milk. Mikrochim Acta 2023; 191:50. [PMID: 38141100 DOI: 10.1007/s00604-023-06106-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 11/15/2023] [Indexed: 12/24/2023]
Abstract
A sensitive immunochromatographic assay (ICA) using time-resolved fluorescence microspheres (TRFMs) coupled with an indirect-labeling mode was developed for simultaneously determining 22 kinds of β-lactams in milk samples. The TRFMs labeled anti-receptor monoclonal antibodies (mAbs) conjugated to penicillin-binding proteins (PBPs) as ternary TRFMs-mAb-PBPs (TMP) nanoscaffolds provide excellent solubility, brightness, and stability. Thanks to the fact that they not only fully expose the binding sites of PBPs, thereby enhancing the biological affinity of PBPs towards the target, but also generated superb fluorescence signals, the versatile TMP manifested unique possibilities as efficient probes for ICA with remarkable enhancement in sensitivity in β-lactams screening. The results showed that the standard curves of the 22 varying β-lactams displayed linearity in their respective concentration ranges (R2 > 0.98), with the cutoff values of 1-100 ng/mL. The constructed TMP-ICA was successfully applied to the analysis of real milk, with consistent results compared with liquid chromatography-tandem mass spectrometry (LC-MS), providing an effective method for sensing β-lactams in food matrices.
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Affiliation(s)
- Yawei Sun
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, 453003, Henan, People's Republic of China
| | - Xiangjie Deng
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, 453003, Henan, People's Republic of China
| | - Changwei Luo
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Wentao Ma
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Wanjing Liu
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Jinkui Wang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Qingyue Li
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China
| | - Tong Bu
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China.
| | - Xiya Zhang
- Henan Engineering Technology Research Center of Food Processing and Circulation Safety Control, College of Food Science and Technology, Henan Agricultural University, 63 Nongye Road, Zhengzhou, 450002, Henan, China.
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7
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Chu G, Liu Z, Zhang Y, Guo Y, Sun X, Li M. Simple Immunosensor Based on Carboxyl-Functionalized Multi-Walled Carbon Nanotubes @ Antimony-Doped Tin Oxide Composite Membrane for Aflatoxin B 1 Detection. MICROMACHINES 2023; 14:mi14050996. [PMID: 37241620 DOI: 10.3390/mi14050996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/06/2023] [Accepted: 04/08/2023] [Indexed: 05/28/2023]
Abstract
This paper presents a novel nano-material composite membrane for detecting aflatoxin B1 (AFB1). The membrane is based on carboxyl-functionalized multi-walled carbon nanotubes (MWCNTs-COOH) @ antimony-doped tin oxide (ATO)-chitosan (CS). To prepare the immunosensor, MWCNTs-COOH were dissolved in the CS solution, but some MWCNTs-COOH formed aggregates due to the intertwining of carbon nanotubes, blocking some pores. ATO was added to the solution containing MWCNTs-COOH, and the gaps were filled by adsorbing hydroxide radicals to form a more uniform film. This greatly increased the specific surface area of the formed film, resulting in a nano-composite film that was modified on screen-printed electrodes (SPCEs). The immunosensor was then constructed by immobilizing anti-AFB1 antibodies (Ab) and bovine serum albumin (BSA) on an SPCE successively. The assembly process and effect of the immunosensor were characterized using scanning electron microscopy (SEM), differential pulse voltammetry (DPV), and cyclic voltammetry (CV). Under optimized conditions, the prepared immunosensor exhibited a low detection limit of 0.033 ng/mL with a linear range of 1 × 10-3-1 × 103 ng/mL. The immunosensor demonstrated good selectivity, reproducibility, and stability. In summary, the results suggest that the MWCNTs-COOH@ATO-CS composite membrane can be used as an effective immunosensor for detecting AFB1.
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Affiliation(s)
- Guanglei Chu
- School of Agriculture Engineering and Food Science, Shandong University of Technology, No. 12 Zhangzhou Road, Zibo 255049, China
- Hunan Agricultural Equipment Research Institute, Hunan Academy of Agricultural Sciences, No. 120 Donghu Road, Changsha 410125, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 12 Zhangzhou Road, Zibo 255049, China
- College of Design and Engineering, National University of Singapore, No. 21 Lower Kent Ridge Road, Singapore 119077, Singapore
| | - Zengning Liu
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 12 Zhangzhou Road, Zibo 255049, China
| | - Yanyan Zhang
- School of Agriculture Engineering and Food Science, Shandong University of Technology, No. 12 Zhangzhou Road, Zibo 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 12 Zhangzhou Road, Zibo 255049, China
| | - Yemin Guo
- School of Agriculture Engineering and Food Science, Shandong University of Technology, No. 12 Zhangzhou Road, Zibo 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 12 Zhangzhou Road, Zibo 255049, China
| | - Xia Sun
- School of Agriculture Engineering and Food Science, Shandong University of Technology, No. 12 Zhangzhou Road, Zibo 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 12 Zhangzhou Road, Zibo 255049, China
| | - Ming Li
- School of Agriculture Engineering and Food Science, Shandong University of Technology, No. 12 Zhangzhou Road, Zibo 255049, China
- Hunan Agricultural Equipment Research Institute, Hunan Academy of Agricultural Sciences, No. 120 Donghu Road, Changsha 410125, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 12 Zhangzhou Road, Zibo 255049, China
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8
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Wu H, Bu T, Cao Y, Wang Y, Xi J, Li M, Li R, Jia P, Wang L. Double-Enzyme Active Vanadium Nanospheres-Mediated Ratiometric Multicolor Immunosensors for Sensitive Detection of the T-2 Toxin. Anal Chem 2023; 95:5275-5284. [PMID: 36898021 DOI: 10.1021/acs.analchem.2c05197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Owing to its high throughput, simplicity, and rapidity, enzyme-linked immunosorbent assay (ELISA) has attracted much attention in the field of immunoassays. However, the traditional ELISA usually affords a single signal readout and the labeling ability of the enzyme used is poor, resulting in low accuracy and a limited detection range. Herein, a vanadium nanospheres (VNSs)-mediated competitive ratio nanozymes-linked immunosorbent assay (VNSs-RNLISA) was created for the sensitive detection of the T-2 toxin (T-2). As the key to the biosensor, the VNSs with superoxide dismutase-like and peroxidase-like dual-enzyme mimetic activities were synthesized by a one-step hydrothermal method, which oxidized 1,1-diphenyl-2-picryl-hydrazyl fading and catalyzed 3,3',5,5'-tetramethylbenzidine (TMB) color development. Therefore, T-2 could not only be qualitatively measured with the naked eye but also be quantitatively evaluated by monitoring the ratio of absorbance at 450 and 517 nm wavelengths. Moreover, the characterization of a VNSs-labeled antibody probe showed strong dual-enzymatic activity, excellent stability, and high affinity with T-2 [the affinity constant (ka) was approximately 1.36 × 108 M-1], which can significantly improve the detection sensitivity. The limit of detection of VNSs-RNLISA was 0.021 ng/mL, which was approximately 27-fold more sensitive than the single signal nanozymes-linked immunosorbent assay (0.561 ng/mL). Besides, the change in the ratio of absorbance (Δ450/Δ517) decreased linearly in a range of 0.22-13.17 ng/mL, outperforming the detection range of a single-mode nano-enzyme-linked immunosorbent assay using TMB by a factor of 1.6 times. Furthermore, the VNSs-RNLISA was successfully used to identify T-2 in maize and oat samples, with recoveries ranging from 84.216 to 125.371%. Overall, this tactic offered a promising platform for the quick detection of T-2 in food and might broaden the application range of the enzyme-linked immunosorbent assay.
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Affiliation(s)
- Haiyu Wu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.,Shenzhen Research Institute, Northwest A&F University, Shenzhen 518000, China
| | - Tong Bu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.,College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Yuanyuan Cao
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.,Shenzhen Research Institute, Northwest A&F University, Shenzhen 518000, China
| | - Ying Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.,Shenzhen Research Institute, Northwest A&F University, Shenzhen 518000, China
| | - Jia Xi
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.,Shenzhen Research Institute, Northwest A&F University, Shenzhen 518000, China
| | - Mingyan Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.,Shenzhen Research Institute, Northwest A&F University, Shenzhen 518000, China
| | - Ruixia Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.,Shenzhen Research Institute, Northwest A&F University, Shenzhen 518000, China
| | - Pei Jia
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.,Shenzhen Research Institute, Northwest A&F University, Shenzhen 518000, China
| | - Li Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.,Shenzhen Research Institute, Northwest A&F University, Shenzhen 518000, China
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9
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Gao Q, Huo J, Chen L, Yang D, Zhang W, Jia B, Xu X, Barnych B, Zhang J, Hammock BD. Development of immunoassay based on a specific antibody for sensitive detection of nicosulfuron in environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160247. [PMID: 36400293 PMCID: PMC10042444 DOI: 10.1016/j.scitotenv.2022.160247] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/13/2022] [Accepted: 11/13/2022] [Indexed: 06/16/2023]
Abstract
Nicosulfuron, one of the most widely used selective herbicides in corn field, can effectively control annual and perennial grass weeds, sedges, and some broadleaf weeds. The residual phytotoxicity of nicosulfuron in soil and water has become increasingly prominent. Therefore, an efficient method for detection of nicosulfuron was critical to ensure the sustainable and healthy development of agriculture and the ecological environment. In this paper, five nicosulfuron haptens which contained carboxyl group or aldehyde groups were designed and synthesized, and an indirect competitive immunoassay was developed for the first time. The assay showed an IC50 of 8.42 ng/mL and had negligible cross reactivities toward other sulfonylurea herbicides. In the spike and recovery studies, the recovery rate from soil samples was 95 %-104 %, and that of wheat roots was 92 %-98 %, which showed a good correlation with LC-MS analysis for nicosulfuron. The immunoassay was then used to quantify nicosulfuron concentration which could cause the obvious phytotoxic symptoms to wheat. Obvious symptoms of nicosulfuron phytotoxicity in wheat root was observed at the concentration of 0.068 ± 0.006 mg/kg (ELISA result) which was consistent with 0.072 ± 0.007 mg/kg obtained by LC-MS. The developed immunoassay method is an effective tool for environment contamination monitoring.
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Affiliation(s)
- Qingqing Gao
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Jingqian Huo
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China.
| | - Lai Chen
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Dongchen Yang
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Weihong Zhang
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Bin Jia
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Xiaotong Xu
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China
| | - Bogdan Barnych
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, CA 95616, United States of America
| | - Jinlin Zhang
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, PR China.
| | - Bruce D Hammock
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, CA 95616, United States of America
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10
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Chen J, Li D, Sun T, Han J, Zhang Y, Li W, Xu J, Chen K. Experimental observations on metal-like carrier transport and Mott hopping conduction behaviours in boron-doped Si nanocrystal multilayers. NANOTECHNOLOGY 2023; 34:16LT01. [PMID: 36701802 DOI: 10.1088/1361-6528/acb652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/26/2023] [Indexed: 06/17/2023]
Abstract
Studies on the carrier transport characteristics of semiconductor nanomaterials are the important and interesting issues which are helpful for developing the next generation of optoelectronic devices. In this work, we fabricate B-doped Si nanocrystals/SiO2multilayers by plasma enhanced chemical vapor deposition with subsequent high temperature annealing. The electronic transport behaviors are studied via Hall measurements within a wide temperature range (30-660 K). It is found that when the temperature is above 300 K, all the B-doped Si nanocrystals with the size near 4.0 nm exhibit the semiconductor-like conduction characteristics, while the conduction of Si nanocrystals with large size near 7.0 nm transforms from semiconductor-like to metal-like at high B-doping ratios. The critical carrier concentration of conduction transition can reach as high as 2.2 × 1020cm-3, which is significantly higher than that of bulk counterpart and may be even higher for the smaller Si nanocrystals. Meanwhile, the Mott variable-range hopping dominates the carrier transport when the temperature is below 100 K. The localization radius of carriers can be regulated by the B-doping ratios and Si NCs size, which is contributed to the metallic insulator transition.
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Affiliation(s)
- Jiaming Chen
- School of Electrical Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory of Advanced Photonic and Electrical Materials, Nanjing University, Nanjing, 210000, People's Republic of China
| | - Dongke Li
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, School of Materials Science and Engineering, Zhejiang University, 311200, Hangzhou, People's Republic of China
| | - Teng Sun
- School of Electrical Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory of Advanced Photonic and Electrical Materials, Nanjing University, Nanjing, 210000, People's Republic of China
| | - Junnan Han
- School of Electrical Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory of Advanced Photonic and Electrical Materials, Nanjing University, Nanjing, 210000, People's Republic of China
| | - Yangyi Zhang
- School of Electrical Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory of Advanced Photonic and Electrical Materials, Nanjing University, Nanjing, 210000, People's Republic of China
| | - Wei Li
- School of Electrical Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory of Advanced Photonic and Electrical Materials, Nanjing University, Nanjing, 210000, People's Republic of China
| | - Jun Xu
- School of Electrical Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory of Advanced Photonic and Electrical Materials, Nanjing University, Nanjing, 210000, People's Republic of China
| | - Kunji Chen
- School of Electrical Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Provincial Key Laboratory of Advanced Photonic and Electrical Materials, Nanjing University, Nanjing, 210000, People's Republic of China
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11
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Kunene K, Sayegh S, Weber M, Sabela M, Voiry D, Iatsunskyi I, Coy E, Kanchi S, Bisetty K, Bechelany M. Smart electrochemical immunosensing of aflatoxin B1 based on a palladium nanoparticle-boron nitride-coated carbon felt electrode for the wine industry. Talanta 2023. [DOI: 10.1016/j.talanta.2022.124000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Nanda Kumar D, Freidman I, Sionov E, Shtenberg G. Porous Silicon Fabry-Pérot Interferometer Designed for Sensitive Detection of Aflatoxin B1 in Field Crops. Food Chem 2022; 405:134980. [DOI: 10.1016/j.foodchem.2022.134980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/27/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022]
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13
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Zhang J, Gao L, Chai B, Zhao J, Yang Z, Yang K. Electrochemical aptasensor for aflatoxin B1 detection using cerium dioxide nanoparticle supported on iron-porphyrinic metal–organic framework as signal probes. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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14
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Bu T, Bai F, Zhao S, Sun X, Jia P, He K, Wang Y, Li Q, Wang L. Dual-Modal Immunochromatographic Test for Sensitive Detection of Zearalenone in Food Samples Based On Biosynthetic Staphylococcus aureus-Mediated Polymer Dot Nanocomposites. Anal Chem 2022; 94:5546-5554. [PMID: 35348339 DOI: 10.1021/acs.analchem.1c04721] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The rapid detection of toxins is of great significance to food security and human health. In this work, a dual-modality immunochromatographic test (DICT) mediated by Staphylococcus aureus (SA)-biosynthesized polymer dots (SABPDs) was constructed for sensitive monitoring of zearalenone (ZEN) in agro products. The SABPDs as potent microorganism nanoscaffolds with excellent solubility, brightness, and stability were ingeniously fabricated employing hydroquinone and SA as precursors in the Schiff base reaction and a self-assembly technique. Thanks to the fact that they not only preserved an intact microsphere for loading Fc regions of monoclonal antibodies (mAbs) and the affinity of their labeled mAbs to antigen but also generated superb colorimetric-fluorescent dual signals, the versatile SABPDs manifested unique possibilities as the new carriers for dual-readout ICT with remarkable enhancement in sensitivity in ZEN screening (limit of detection = 0.036 ng/mL, which was 31-fold lower than that of traditional gold nanoparticle-based ICT). Ultimately, the proposed immunosensor performed well in millet and corn samples with satisfactory recoveries, demonstrating its potential for point-of-care testing. This work offers a bio-friendly strategy for biosynthesizing cell-based PD vehicles with bimodal signals for food safety analysis.
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Affiliation(s)
- Tong Bu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.,Shenzhen Research Institute Northwest A&F University, Shenzhen 518000, Guangdong, China
| | - Feier Bai
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.,Shenzhen Research Institute Northwest A&F University, Shenzhen 518000, Guangdong, China
| | - Shuang Zhao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.,Shenzhen Research Institute Northwest A&F University, Shenzhen 518000, Guangdong, China
| | - Xinyu Sun
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.,Shenzhen Research Institute Northwest A&F University, Shenzhen 518000, Guangdong, China
| | - Pei Jia
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.,Shenzhen Research Institute Northwest A&F University, Shenzhen 518000, Guangdong, China
| | - Kunyi He
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.,Shenzhen Research Institute Northwest A&F University, Shenzhen 518000, Guangdong, China
| | - Ying Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.,Shenzhen Research Institute Northwest A&F University, Shenzhen 518000, Guangdong, China
| | - Qing Li
- College of Food Science and Engineering, The Test Center, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Li Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.,Shenzhen Research Institute Northwest A&F University, Shenzhen 518000, Guangdong, China
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15
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Bai L, Gao Y, Wang J, Aili T, Jia Z, Lv X, Huang X, Yang J. Detection of β-Lactoglobulin by a Porous Silicon Microcavity Biosensor Based on the Angle Spectrum. SENSORS 2022; 22:s22051912. [PMID: 35271059 PMCID: PMC8914963 DOI: 10.3390/s22051912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/10/2022] [Accepted: 02/23/2022] [Indexed: 11/16/2022]
Abstract
In this paper, carbon quantum dot-labelled β-lactoglobulin antibodies were used for refractive index magnification, and β-lactoglobulin was detected by angle spectroscopy. In this method, the detection light is provided by a He-Ne laser whose central wavelength is the same as that of the porous silicon microcavity device, and the light source was changed to a parallel beam to illuminate the porous silicon microcavity’ surface by collimating beam expansion, and the reflected light was received on the porous silicon microcavity’ surface by a detector. The angle corresponding to the smallest luminous intensity before and after the onset of immune response was measured by a detector for different concentrations of β-lactoglobulin antigen and carbon quantum dot-labelled β-lactoglobulin antibodies, and the relationship between the variation in angle before and after the immune response was obtained for different concentrations of the β-lactoglobulin antigen. The results of the experiment present that the angle variations changed linearly with increasing β-lactoglobulin antigen concentration before and after the immune response. The limit of detection of β-lactoglobulin by this method was 0.73 μg/L, indicating that the method can be used to detect β-lactoglobulin quickly and conveniently at low cost.
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Affiliation(s)
- Lanlan Bai
- School of Physical Science and Technology, Xinjiang University, Urumqi 830046, China; (L.B.); (Y.G.)
| | - Yun Gao
- School of Physical Science and Technology, Xinjiang University, Urumqi 830046, China; (L.B.); (Y.G.)
| | - Jiajia Wang
- School of Information Science and Engineering, Xinjiang University, Urumqi 830046, China; (J.W.); (X.H.)
- The Key Laboratory of Signal Detection and Processing, Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi 830046, China;
| | - Tuerxunnayi Aili
- School of Life Science and Technology, Xinjiang University, Urumqi 830046, China; (T.A.); (J.Y.)
| | - Zhenhong Jia
- School of Information Science and Engineering, Xinjiang University, Urumqi 830046, China; (J.W.); (X.H.)
- The Key Laboratory of Signal Detection and Processing, Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi 830046, China;
- Correspondence:
| | - Xiaoyi Lv
- The Key Laboratory of Signal Detection and Processing, Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi 830046, China;
- School of Software, Xinjiang University, Urumqi 830046, China
| | - Xiaohui Huang
- School of Information Science and Engineering, Xinjiang University, Urumqi 830046, China; (J.W.); (X.H.)
- The Key Laboratory of Signal Detection and Processing, Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi 830046, China;
| | - Jie Yang
- School of Life Science and Technology, Xinjiang University, Urumqi 830046, China; (T.A.); (J.Y.)
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16
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Chen Y, Li W, Li J, Zhuo S, Jiao S, Wang S, Sun J, Li Q, Zheng T. Stable three-dimensional porous silicon-carbon-gold composite film for enrichment and directly electrochemical detection of bisphenol A. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Soares MS, Vidal M, Santos NF, Costa FM, Marques C, Pereira SO, Leitão C. Immunosensing Based on Optical Fiber Technology: Recent Advances. BIOSENSORS-BASEL 2021; 11:bios11090305. [PMID: 34562895 PMCID: PMC8472567 DOI: 10.3390/bios11090305] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/25/2021] [Accepted: 08/27/2021] [Indexed: 12/12/2022]
Abstract
The evolution of optical fiber technology has revolutionized a variety of fields, from optical transmission to environmental monitoring and biomedicine, given their unique properties and versatility. For biosensing purposes, the light guided in the fiber core is exposed to the surrounding media where the analytes of interest are detected by different techniques, according to the optical fiber configuration and biofunctionalization strategy employed. These configurations differ in manufacturing complexity, cost and overall performance. The biofunctionalization strategies can be carried out directly on bare fibers or on coated fibers. The former relies on interactions between the evanescent wave (EW) of the fiber and the analyte of interest, whereas the latter can comprise plasmonic methods such as surface plasmon resonance (SPR) and localized SPR (LSPR), both originating from the interaction between light and metal surface electrons. This review presents the basics of optical fiber immunosensors for a broad audience as well as the more recent research trends on the topic. Several optical fiber configurations used for biosensing applications are highlighted, namely uncladded, U-shape, D-shape, tapered, end-face reflected, fiber gratings and special optical fibers, alongside practical application examples. Furthermore, EW, SPR, LSPR and biofunctionalization strategies, as well as the most recent advances and applications of immunosensors, are also covered. Finally, the main challenges and an outlook over the future direction of the field is presented.
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18
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He K, Bu T, Zhao S, Bai F, Zhang M, Tian Y, Sun X, Dong M, Wang L. Well-orientation strategy for direct binding of antibodies: Development of the immunochromatographic test using the antigen modified Fe 2O 3 nanoprobes for sensitive detection of aflatoxin B 1. Food Chem 2021; 364:129583. [PMID: 34225247 DOI: 10.1016/j.foodchem.2021.129583] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/24/2020] [Accepted: 03/07/2021] [Indexed: 01/02/2023]
Abstract
One of the major concerns in the application of nanocarriers in biosensing is the impair of the recognition molecules bioactivity loaded on their surfaces due to harsh and laborious cross-linking and random orientation, resulting in unsatisfactory sensitivity. Herein, we proposed a novel immunochromatographic test strip (FNS-ag-DICTS) by taking advantage of the antigen (ag) modified Fe2O3 nanostructures (FNSs) as new signal tags and goat anti-mouse IgG labeling on the detection line instead of ag, which was used for sensitive detection of aflatoxin B1 (AFB1). The fabricated FNS-ag can orientate the Fab region of monoclonal antibodies (mAbs), waiving the intrinsic limitations of traditional nanomaterials labeled mAbs. Under optimal conditions, FNS-ag-DICTS possessed excellent specificity and a wide detection range, with a visual limit of detection (vLOD) of 0.0125 ng mL-1. In addition, the biosensor successfully detected AFB1 in peanut, green bean and corn, with an average recovery rate of 82.8-124.9%.
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Affiliation(s)
- Kunyi He
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Tong Bu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Shuang Zhao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Feier Bai
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Meng Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yongming Tian
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xinyu Sun
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Mengna Dong
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Li Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
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19
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Moretta R, De Stefano L, Terracciano M, Rea I. Porous Silicon Optical Devices: Recent Advances in Biosensing Applications. SENSORS (BASEL, SWITZERLAND) 2021; 21:1336. [PMID: 33668616 PMCID: PMC7917735 DOI: 10.3390/s21041336] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/25/2021] [Accepted: 02/05/2021] [Indexed: 02/07/2023]
Abstract
This review summarizes the leading advancements in porous silicon (PSi) optical-biosensors, achieved over the past five years. The cost-effective fabrication process, the high internal surface area, the tunable pore size, and the photonic properties made the PSi an appealing transducing substrate for biosensing purposes, with applications in different research fields. Different optical PSi biosensors are reviewed and classified into four classes, based on the different biorecognition elements immobilized on the surface of the transducing material. The PL signal modulation and the effective refractive index changes of the porous matrix are the main optical transduction mechanisms discussed herein. The approaches that are commonly employed to chemically stabilize and functionalize the PSi surface are described.
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Affiliation(s)
- Rosalba Moretta
- National Research Council, Institute of Applied Sciences and Intelligent Systems, Unit of Naples, 80131 Naples, Italy; (R.M.); (L.D.S.); (I.R.)
| | - Luca De Stefano
- National Research Council, Institute of Applied Sciences and Intelligent Systems, Unit of Naples, 80131 Naples, Italy; (R.M.); (L.D.S.); (I.R.)
| | - Monica Terracciano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Ilaria Rea
- National Research Council, Institute of Applied Sciences and Intelligent Systems, Unit of Naples, 80131 Naples, Italy; (R.M.); (L.D.S.); (I.R.)
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20
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Rashed MA, Harraz FA, Faisal M, El-Toni AM, Alsaiari M, Al-Assiri MS. Gold nanoparticles plated porous silicon nanopowder for nonenzymatic voltammetric detection of hydrogen peroxide. Anal Biochem 2020; 615:114065. [PMID: 33321107 DOI: 10.1016/j.ab.2020.114065] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/29/2020] [Accepted: 12/09/2020] [Indexed: 01/12/2023]
Abstract
A voltammetric approach was developed for the selective and sensitive determination of hydrogen peroxide using Au plated porous silicon (PSi) nanopowder modified glassy carbon electrode (GCE). The AuNPs-PSi hybrid structure was synthesized via stain etching procedure followed by an immersion plating method to deposit AuNPs onto PSi via a simple galvanic displacement reaction with no external reducing agent to convert Au3+ to Au0. The as-fabricated AuNPs-PSi catalyst was successfully characterized by XRD, Raman, FTIR, XPS, SEM, TEM and EDS techniques. Well crystalline nature of the as-fabricated hybrid structure with AuNPs size ranging from 5 to 40 nm was observed. The specific surface area and total pore volume for both PSi and AuNPs plated PSi were evaluated using N2 adsorption isotherm technique. Cyclic voltammetry and electrochemical impedance spectroscopy techniques were applied to investigate the catalytic efficiency of AuNPs-PSi modified electrode compared to pure PSi/GCE and unmodified GCE. The sensing performance of the active material modified GCE was thoroughly examined with linear sweep voltammetry (LSV) and square wave voltammetry (SWV) techniques. The AuNPs-PSi/GCE exhibited a remarkable linear dynamic range between 2.0 and 13.81 mM (for LSV) and 0.5-6.91 mM for (SWV) with high sensitivity and low detection limit of 10.65 μAmM-1cm-2 and 14.84 μM for LSV, whereas 10.41 μAmM-1cm-2 and 15.16 μM using SWV techniques, respectively. The fabricated sensor electrode showed excellent anti-interfering ability in the presence of several common biomolecules as well as demonstrated good operational stability and reproducibility with low relative standard deviation. Moreover, the modified electrode showed acceptable recovery of H2O2 in a real sample analysis. Thus, the developed AuNPs-PSi hybrid nanomaterial represents an excellent electrocatalyst for the efficient detection and quantification of H2O2 by the electrochemical approach.
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Affiliation(s)
- Md A Rashed
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia; Department of Chemistry, Faculty of Science, Mawlana Bhashani Science and Technology University, Santosh, Tangail, 1902, Bangladesh
| | - Farid A Harraz
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia; Nanomaterials and Nanotechnology Department, Central Metallurgical Research and Development Institute (CMRDI), P.O. 87 Helwan, Cairo, 11421, Egypt.
| | - M Faisal
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia; Department of Chemistry, Faculty of Science and Arts, Najran University, Saudi Arabia
| | - Ahmed Mohamed El-Toni
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia; Nanomaterials and Nanotechnology Department, Central Metallurgical Research and Development Institute (CMRDI), P.O. 87 Helwan, Cairo, 11421, Egypt
| | - Mabkhoot Alsaiari
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia; Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Saudi Arabia
| | - M S Al-Assiri
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia; Department of Physics, Faculty of Science and Arts, Najran University, Saudi Arabia
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21
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Shi R, Feng S, Park CY, Park KY, Song J, Park JP, Chun HS, Park TJ. Fluorescence detection of histamine based on specific binding bioreceptors and carbon quantum dots. Biosens Bioelectron 2020; 167:112519. [DOI: 10.1016/j.bios.2020.112519] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/07/2020] [Accepted: 08/13/2020] [Indexed: 02/06/2023]
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22
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Silina YE, Morgan B. LDI-MS scanner: Laser desorption ionization mass spectrometry-based biosensor standardization. Talanta 2020; 223:121688. [PMID: 33303141 DOI: 10.1016/j.talanta.2020.121688] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/15/2020] [Accepted: 09/18/2020] [Indexed: 01/22/2023]
Abstract
Amperometric biosensors have been widely utilized for the cost-effective and rapid analysis of various bioanalytes, for example glucose. However, a lack of standardization and validation procedures remains a major limitation in biosensor development. Therefore, despite rapid advances in material science driving the development of amperometric biosensors, to date only a few biosensors, detecting a limited range of analytes, are available on the market. It is believed, once this issue is addressed, it can significantly facilitate the next step in the overall concept "go to the market" production and implementation of amprerometric biosensors for a large industrial scale. Herein, we report on the use of laser desorption ionization mass spectrometry (LDI-MS) for the standardization of amperometric biosensors, based upon a complete and non-destructive characterization and validation of layer-by-layer (LbL) biosensors at each fabrication step. We reveal that specific ionization pathways of mediators, polymers and enzymes from the biosensor surface allows for robust quality control during LbL biosensor manufacture. Furthermore, this LDI-MS approach can also be used to monitor, and therefore ensure, the encapsulation of enzymes in one-step nanobiosensors. Specifically, we show that LDI-MS can be used for the rapid chemical profiling of LbL biosensors and one-step synthesized nanobiosensors, as well as to assess their synthesis quality and to monitor for batch-to-batch and intra- and inter-day changes in their function and behavior. Our novel approach will thus contribute to the future development, improved design and fine tuning of both conventional LbL-fabricated amperometric biosensors and one-step designed nanobiosensors.
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Affiliation(s)
- Y E Silina
- Institute for Biochemistry, Zentrum für Human und Molekularbiologie (ZHMB), Campus B 2.2, University of Saarland, 66123, Saarbrücken, Germany.
| | - B Morgan
- Institute for Biochemistry, Zentrum für Human und Molekularbiologie (ZHMB), Campus B 2.2, University of Saarland, 66123, Saarbrücken, Germany
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23
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Design of A Low-Cost and Disposable Paper-Based Immunosensor for the Rapid and Sensitive Detection of Aflatoxin B1. CHEMOSENSORS 2020. [DOI: 10.3390/chemosensors8030087] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We report a paper-based electrochemical immunosensor made with sustainable materials to detect aflatoxin B1 (AFB1), a highly toxic, carcinogenic mycotoxin found in food. The immunosensor was prepared with a waterproof paper substrate and low-cost graphite-based conductive ink through a simple cut-printing method. The working electrode was functionalized with a drop-cast film of multiwalled carbon nanotubes (MWCNT)/chitosan on which a layer of anti-AFB1 monoclonal antibodies was immobilized covalently. The architecture of the immunosensor was confirmed with polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS) and electrochemical impedance spectroscopy (EIS), including the effective immobilization of the active layer of anti-AFB1. With EIS as the principle of detection, the immunosensor could detect AFB1 in the range from 1 to 30 ng·mL−1, and detection limit of 0.62 ng·mL−1. This sensitivity is sufficient to detect AFB1 in food according to regulatory agencies. The immunosensor exhibited good repeatability, reproducibility, stability, and selectivity in experiments with a possible interferent. Furthermore, detection of AFB1 in maize flour samples yielded recovery of 97–99%, in a demonstration of the possible use of the paper-based immunosensor to detect AFB1 using extraction solutions from food samples.
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24
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Myndrul V, Coy E, Bechelany M, Iatsunskyi I. Photoluminescence label-free immunosensor for the detection of Aflatoxin B1 using polyacrylonitrile/zinc oxide nanofibers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111401. [PMID: 33255004 DOI: 10.1016/j.msec.2020.111401] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 08/13/2020] [Accepted: 08/19/2020] [Indexed: 12/25/2022]
Abstract
The precise and rapid detection of hazardous molecules, microorganisms, pollutants, and toxins currently remains a global challenge. Aflatoxin B1 (AFB1) is a toxic and dangerous product of fungi that considered as cancerogenic, mutagenic, and immunosuppressive for humans and animals. Therefore, the screening of AFB1 in food and beverages plays an important role in preventing foodborne illnesses. In this study, AFB1 molecules were detected in a microfluidic device with integrated polyacrylonitrile/zinc oxide (PAN/ZnO) nanofibers fabricated via a combination of the electrospinning, and atomic layer deposition (ALD) techniques. The structural and optical analyses of PAN/ZnO nanofibers were performed and samples with the most suitable properties were utilized for AFB1 detection. In order to obtain the biorecognition layer towards AFB1, PAN/ZnO samples were modified by (3-Aminopropyl) triethoxysilane (APTES), and glutaraldehyde (GA), bovine serum albumin (BSA) and monoclonal antibodies (Anti-AFB1). Subsequently, photoluminescence (PL)-based immunosensor was integrated into a microfluidic cell and tested for AFB1 detection. The mechanism of PL changes caused by AFB1 & Anti-AFB1 complex formation was analyzed and developed. The proposed approach enables the detection of AFB1 with the lowest concentration (LOD) of about 39 pg/ml, while the sensitivity range was evaluated as 0.1-20 ng/ml. The obtained values of LOD and sensitivity, as well as the simplicity of the detection method, make this approach a prospect for further application.
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Affiliation(s)
- Valerii Myndrul
- NanoBioMedical Centre, Adam Mickiewicz University, 3, Wszechnicy Piastowskiej Str., 61-614 Poznan, Poland
| | - Emerson Coy
- NanoBioMedical Centre, Adam Mickiewicz University, 3, Wszechnicy Piastowskiej Str., 61-614 Poznan, Poland
| | - Mikhael Bechelany
- Institut Européen des Membranes, IEM, UMR 5635, Univ Montpellier, ENSCM, CNRS, 34095 Montpellier CEDEX 5, France
| | - Igor Iatsunskyi
- NanoBioMedical Centre, Adam Mickiewicz University, 3, Wszechnicy Piastowskiej Str., 61-614 Poznan, Poland.
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Photoluminescent Detection of Human T-Lymphoblastic Cells by ZnO Nanorods. Molecules 2020; 25:molecules25143168. [PMID: 32664437 PMCID: PMC7397042 DOI: 10.3390/molecules25143168] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/03/2020] [Accepted: 07/08/2020] [Indexed: 11/17/2022] Open
Abstract
The precise detection of cancer cells currently remains a global challenge. One-dimensional (1D) semiconductor nanostructures (e.g., ZnO nanorods) have attracted attention due to their potential use in cancer biosensors. In the current study, it was demonstrated that the possibility of a photoluminescent detection of human leukemic T-cells by using a zinc oxide nanorods (ZnO NRs) platform. Monoclonal antibodies (MABs) anti-CD5 against a cluster of differentiation (CD) proteins on the pathologic cell surface have been used as a bioselective layer on the ZnO surface. The optimal concentration of the protein anti-CD5 to form an effective bioselective layer on the ZnO NRs surface was selected. The novel biosensing platforms based on glass/ZnO NRs/anti-CD5 were tested towards the human T-lymphoblast cell line MOLT-4 derived from patients with acute lymphoblastic leukemia. The control tests towards MOLT-4 cells were performed by using the glass/ZnO NRs/anti-IgG2a system as a negative control. It was shown that the photoluminescence signal of the glass/ZnO NRs/anti-CD5 system increased after adsorption of T-lymphoblast MOLT-4 cells on the biosensor surface. The increase in the ZnO NRs photoluminescence intensity correlated with the number of CD5-positive MOLT-4 cells in the investigated population (controlled by using flow cytometry). Perspectives of the developed ZnO platforms as an efficient cancer cell biosensor were discussed.
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Xiong X, Yuan W, Li Y, Lu Y, Xiong X, Li Y, Liu Y, Lu L. Sensitive electrochemical detection of aflatoxin B1 using DNA tetrahedron-nanostructure as substrate of antibody ordered assembly and template of aniline polymerization. Food Chem 2020; 331:127368. [PMID: 32569962 DOI: 10.1016/j.foodchem.2020.127368] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 04/15/2020] [Accepted: 06/14/2020] [Indexed: 12/19/2022]
Abstract
A novel strategy for AFB1 detection in grains was proposed based on DNA tetrahedron-structured probe (DTP) and horseradish peroxidase (HRP) triggered polyaniline (PANI) deposition. Briefly, the DNA tetrahedron nanostructures were assembled on the gold electrode, with carboxylic group designed on top vertex of them. The carboxylic group was conjugated with the AFB1 monoclonal antibody (mAb) to form DTP. The test sample and a known fixed concentration of HRP-labeled AFB1 were mixed and they compete for binding to DTP. The HRP assembled on the gold electrode catalyzed the polymerization of aniline on DTP. AFB1 in grains could be determined by using PANI as electrochemical signal molecules. Interestingly, DNA tetrahedron-structure, which has mechanical rigidity and structural stability, can improve antigen-antibody specific recognition and binding efficiency through the use of mAb ordered assembly. Meanwhile, nucleic acid backbone with a large amount of negative charge is good template for aniline polymerization under mild conditions.
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Affiliation(s)
- Xiaohui Xiong
- Coll Food Sci & Light Ind, Nanjing Tech University, Nanjing 211816, China
| | - Wei Yuan
- Coll Food Sci & Light Ind, Nanjing Tech University, Nanjing 211816, China
| | - Yafei Li
- Coll Food Sci & Light Ind, Nanjing Tech University, Nanjing 211816, China
| | - Yichen Lu
- Coll Food Sci & Light Ind, Nanjing Tech University, Nanjing 211816, China
| | - Xiong Xiong
- Coll Food Sci & Light Ind, Nanjing Tech University, Nanjing 211816, China
| | - Yi Li
- Coll Food Sci & Light Ind, Nanjing Tech University, Nanjing 211816, China
| | - Yuanjian Liu
- Coll Food Sci & Light Ind, Nanjing Tech University, Nanjing 211816, China.
| | - Lixia Lu
- Coll Food Sci & Light Ind, Nanjing Tech University, Nanjing 211816, China.
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González Pereyra M, Di Giacomo A, Lara A, Martínez M, Cavaglieri L. Aflatoxin-degrading Bacillus sp. strains degrade zearalenone and produce proteases, amylases and cellulases of agro-industrial interest. Toxicon 2020; 180:43-48. [DOI: 10.1016/j.toxicon.2020.04.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/05/2020] [Accepted: 04/07/2020] [Indexed: 12/12/2022]
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28
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Caregnato P, David Gara PM, Prieto ED, Gonzalez MC. Luminescence properties and ROS generation of magnetic porous silicon nanoparticles. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Porous Silicon-Zinc Oxide Nanocomposites Prepared by Atomic Layer Deposition for Biophotonic Applications. MATERIALS 2020; 13:ma13081987. [PMID: 32344562 PMCID: PMC7216101 DOI: 10.3390/ma13081987] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/17/2020] [Accepted: 04/22/2020] [Indexed: 01/21/2023]
Abstract
In the current research, a porous silicon/zinc oxide (PSi/ZnO) nanocomposite produced by a combination of metal-assisted chemical etching (MACE) and atomic layer deposition (ALD) methods is presented. The applicability of the composite for biophotonics (optical biosensing) was investigated. To characterize the structural and optical properties of the produced PSi/ZnO nanocomposites, several studies were performed: scanning and transmission electron microscopy (SEM/TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), diffuse reflectance, and photoluminescence (PL). It was found that the ALD ZnO layer fully covers the PSi, and it possesses a polycrystalline wurtzite structure. The effect of the number of ALD cycles and the type of Si doping on the optical properties of nanocomposites was determined. PL measurements showed a “shoulder-shape” emission in the visible range. The mechanisms of the observed PL were discussed. It was demonstrated that the improved PL performance of the PSi/ZnO nanocomposites could be used for implementation in optical biosensor applications. Furthermore, the produced PSi/ZnO nanocomposite was tested for optical/PL biosensing towards mycotoxins (Aflatoxin B1) detection, confirming the applicability of the nanocomposites.
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Wang Q, Yang Q, Wu W. Progress on Structured Biosensors for Monitoring Aflatoxin B1 From Biofilms: A Review. Front Microbiol 2020; 11:408. [PMID: 32292390 PMCID: PMC7119432 DOI: 10.3389/fmicb.2020.00408] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 02/27/2020] [Indexed: 12/19/2022] Open
Abstract
Aspergillus exists commonly in many crops and any process of crop growth, harvest, storage, and processing can be polluted by this fungus. Once it forms a biofilm, Aspergillus can produce many toxins, such as aflatoxin B1 (AFB1), ochratoxin, zearalenone, fumonisin, and patulin. Among these toxins, AFB1 possesses the highest toxicity and is labeled as a group I carcinogen in humans and animals. Consequently, the proper control of AFB1 produced from biofilms in food and feed has long been recognized. Moreover, many biosensors have been applied to monitor AFB1 in biofilms in food. Additionally, in recent years, novel molecular recognition elements and transducer elements have been introduced for the detection of AFB1. This review presents an outline of recent progress made in the development of biosensors capable of determining AFB1 in biofilms, such as aptasensors, immunosensors, and molecularly imprinted polymer (MIP) biosensors. In addition, the current feasibility, shortcomings, and future challenges of AFB1 determination and analysis are addressed.
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Affiliation(s)
| | - Qingli Yang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Wei Wu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
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31
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Application of Organic-Inorganic Hybrids in Chemical Analysis, Bio- and Environmental Monitoring. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10041458] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Organic-inorganic hybrids (OIH) are considered to be a powerful platform for applications in many research and industrial fields. This review highlights the application of OIH for chemical analysis, biosensors, and environmental monitoring. A methodology toward metrological traceability measurement and standardization of OIH and demonstration of the role of mathematical modeling in biosensor design are also presented. The importance of the development of novel types of OIH for biosensing applications is highlighted. Finally, current trends in nanometrology and nanobiosensors are presented.
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32
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Babayevska N, Litowczenko J, Wychowaniec JK, Iatsunskyi I, Jarek M, Florczak P, Jurga S. Cytotoxicity of versatile nano-micro-particles based on hierarchical flower-like ZnO. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2019.10.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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33
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Gold Nanofilm-Coated Porous Silicon as Surface-Enhanced Raman Scattering Substrate. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9224806] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Metallic film-coated porous silicon (PSi) has been reported as a lucrative surface-enhanced Raman scattering (SERS) substrate. The solution-based fabrication process is facile and easy; however, it requires additional reducing agent and extra chemical treatment, as well as hinders the suitability as a reproducible SERS substrate due to irregular hot spot generation via irregular deposition of metallic nanocrystallites. To address this issue, we report a unique one-step electronic beam (e-beam) physical vapor deposition (PVD) method to fabricate a consistent layer of gold (Au) nanofilm on PSi. Moreover, to achieve the best output as a SERS substrate, PSi prepared by electrochemical etching was used as template to generate an Au layer of irregular surface, offering the surface roughness feature of the PSi–Au thin film. Furthermore, to investigate the etching role and Au film thickness, Au-nanocrystallites of varying thickness (5, 7, and 10 nm) showing discrete surface morphology were characterized and evaluated for SERS effect using Rhodamine 6G (R6G). The SERS signal of R6G adsorbed on PSi–Au thin film showed a marked enhancement, around three-fold enhancement factor (EF), than the Si–Au thin film. The optimal SERS output was obtained for PSi–Au substrate of 7 nm Au film thickness. This study thus indicates that the SERS enhancement relies on the Au film thickness and the roughness feature of the PSi–Au substrate.
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34
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Allahnouri F, Farhadi K, Eskandari H, Molaei R. Screen printed carbon electrode modified with a copper@porous silicon nanocomposite for voltammetric sensing of clonazepam. Mikrochim Acta 2019; 186:676. [PMID: 31494758 DOI: 10.1007/s00604-019-3784-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 08/27/2019] [Indexed: 10/26/2022]
Abstract
The work describes an electrochemical sensor for the determination of the tranquilizer clonazepam (CZP) in serum and pharmaceutical preparations. A screen printed carbon electrode (SPCE) was modified with copper nanoparticles anchored on porous silicon (PSi). The surface of the SPCEs modified with the Cu/PSi nanostructure was characterized by X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoemission spectroscopy, energy dispersive X-ray spectroscopy and field-emission scanning electron microscopy. Cyclic and differential pulse voltammetric methods were used for the electrochemical studies and electrochemical detection, respectively. Several parameters controlling the performance of the modified SPCE were optimized. The peak current values (at a potential of -0.52 V) were used to construct calibration plots. Under the optimum conditions, the calibration plot is linear in the 0.05-7.6 μM CZP concentration range, and the detection limit is 15 nM. The sensor is reproducible, repeatable, highly selective and sensitive. It was successfully applied to the determination of CPZ in spiked serum and in drugs. Graphical abstract Scheme of electrochemical reduction of clonazepam on the designed copper@porous silicon modified screen printed carbon electrode (CuNPs/PSi/SPCE). This electrode was employed for the determination of clonazepam in tablets and human blood plasma using differential pulse voltammetry.
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Affiliation(s)
- Farzad Allahnouri
- Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, P.O. Box 165-5715944931, Urmia, Iran
| | - Khalil Farhadi
- Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, P.O. Box 165-5715944931, Urmia, Iran.
| | - Habibollah Eskandari
- Department of Chemistry, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran
| | - Rahim Molaei
- Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, P.O. Box 165-5715944931, Urmia, Iran
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35
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Myndrul V, Iatsunskyi I. Nanosilicon-Based Composites for (Bio)sensing Applications: Current Status, Advantages, and Perspectives. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2880. [PMID: 31489913 PMCID: PMC6766027 DOI: 10.3390/ma12182880] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 12/18/2022]
Abstract
This review highlights the application of different types of nanosilicon (nano-Si) materials and nano-Si-based composites for (bio)sensing applications. Different detection approaches and (bio)functionalization protocols were found for certain types of transducers suitable for the detection of biological compounds and gas molecules. The importance of the immobilization process that is responsible for biosensor performance (biomolecule adsorption, surface properties, surface functionalization, etc.) along with the interaction mechanism between biomolecules and nano-Si are disclosed. Current trends in the fabrication of nano-Si-based composites, basic gas detection mechanisms, and the advantages of nano-Si/metal nanoparticles for surface enhanced Raman spectroscopy (SERS)-based detection are proposed.
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Affiliation(s)
- Valerii Myndrul
- NanoBioMedical Centre, Adam Mickiewicz University, 3, Wszechnicy Piastowskiej Str., 61-614 Poznan, Poland.
| | - Igor Iatsunskyi
- NanoBioMedical Centre, Adam Mickiewicz University, 3, Wszechnicy Piastowskiej Str., 61-614 Poznan, Poland.
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36
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Beheshti-Marnani A, Hatefi-Mehrjardi A, Es'haghi Z. A sensitive biosensing method for detecting of ultra-trace amounts of AFB1 based on "Aptamer/reduced graphene oxide" nano-bio interaction. Colloids Surf B Biointerfaces 2018; 175:98-105. [PMID: 30522013 DOI: 10.1016/j.colsurfb.2018.11.087] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 11/19/2018] [Accepted: 11/30/2018] [Indexed: 12/20/2022]
Abstract
A simple, low-cost and sensitive label-free aptasensor assembled with assisting reduced graphene oxide nanosheets as the signal amplifier was fabricated and applied for detecting ultra-low levels of Aflatoxin B1(AFB1) through a nano-bio interaction system. The conditions of different modified glassy carbon electrodes as the base of aptasensor were investigated by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). The performance of the fabricated aptasensor was evaluated by FESEM, HRTEM and AFM images. The proposed biosensor detected AFB1sensitively in a wide linear range (0.5 nM-4μM) by DPV with a considerable low limit of detection (LOD = 0.07 nM) and good repeatability (RSD = 2.9) and stability. Finally, the present aptasensor was applied successfully for monitoring AFB1 with appropriate recoveries in pasteurized cow milk and human blood plasma as real samples.
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Affiliation(s)
| | | | - Zarrin Es'haghi
- Department of Chemistry, Payame Noor University (PNU), P.O. Box: 19395-4697, Tehran, Iran.
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37
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Arshavsky-Graham S, Massad-Ivanir N, Segal E, Weiss S. Porous Silicon-Based Photonic Biosensors: Current Status and Emerging Applications. Anal Chem 2018; 91:441-467. [DOI: 10.1021/acs.analchem.8b05028] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sofia Arshavsky-Graham
- Department of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, Haifa 3200003, Israel
- Institute of Technical Chemistry, Leibniz Universität Hannover, Callinstrasse 5, 30167 Hanover, Germany
| | - Naama Massad-Ivanir
- Department of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, Haifa 3200003, Israel
| | - Ester Segal
- Department of Biotechnology and Food Engineering, Technion − Israel Institute of Technology, Haifa 3200003, Israel
- The Russell Berrie Nanotechnology Institute, Technion − Israel Institute of Technology, Haifa 3200003, Israel
| | - Sharon Weiss
- Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, Tennessee 37235, United States
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38
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Lee JH, Cho HY, Choi HK, Lee JY, Choi JW. Application of Gold Nanoparticle to Plasmonic Biosensors. Int J Mol Sci 2018; 19:E2021. [PMID: 29997363 PMCID: PMC6073481 DOI: 10.3390/ijms19072021] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 06/29/2018] [Accepted: 07/10/2018] [Indexed: 02/06/2023] Open
Abstract
Gold nanoparticles (GNPs) have been widely utilized to develop various biosensors for molecular diagnosis, as they can be easily functionalized and exhibit unique optical properties explained by plasmonic effects. These unique optical properties of GNPs allow the expression of an intense color under light that can be tuned by altering their size, shape, composition, and coupling with other plasmonic nanoparticles. Additionally, they can also enhance other optical signals, such as fluorescence and Raman scattering, making them suitable for biosensor development. In this review, we provide a detailed discussion of the currently developed biosensors based on the aforementioned unique optical features of GNPs. Mainly, we focus on four different plasmonic biosensing methods, including localized surface plasmon resonance (LSPR), surface-enhanced Raman spectroscopy (SERS), fluorescence enhancement, and quenching caused by plasmon and colorimetry changes based on the coupling of GNPs. We believe that the topics discussed here are useful and able to provide a guideline in the development of novel GNP-based biosensors in the future.
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Affiliation(s)
- Jin-Ho Lee
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea.
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.
| | - Hyeon-Yeol Cho
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea.
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.
| | - Hye Kyu Choi
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea.
| | - Ji-Young Lee
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea.
| | - Jeong-Woo Choi
- Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Korea.
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Kong D, Kong W, Yang X, Yang M. Contamination Parts and Residue Levels of Multi-Mycotoxins in Medicinal and Edible Locust. Front Pharmacol 2018; 9:480. [PMID: 29867486 PMCID: PMC5966561 DOI: 10.3389/fphar.2018.00480] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 04/23/2018] [Indexed: 11/13/2022] Open
Abstract
Locust is esteemed as a traditional Chinese medicine, as well as one of the most important nutritional foods especially in Asian countries. However, some toxic secondary metabolites such as mycotoxins are usually found in different parts of locust to affect its quality and safety. This study aimed to investigate the aflatoxins (AFs) contaminated parts by observing Aspergillus flavus, spores’ diameter, amount and distribution on head, tentacle, wing, belly and shank parts of the locust with scanning electron microscopy (SEM). Furthermore, to assess the residue levels of multi-mycotoxins in the locust, the high performance liquid chromatography with fluorescence detection (HPLC-FLD) was adopted. The technique was used to determine the contents of AFs, zearalenone (ZON) and α-zearalenol (α-ZOL) in locust and the positive samples were confirmed by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The chromatographic conditions, MS/MS parameters and the method of sample extraction were carefully optimized. Results revealed that obvious differences of Aspergillus flavus strains and spores were found, while the spores’ diameter ranged from 3.0 to 13.0 μm in different contaminated parts of the locust samples. The HPLC-FLD method for multi-mycotoxins analysis showed good selectivity, linearity, recovery and precision. Limits of quantification (LOQs) were lower than 27.6 μg/kg, while limits of detection (LODs) were in the range of 0.02–8.6 μg/kg. The accuracy of the developed method was validated regarding recoveries of 80.1–118.1% with relative standard deviation (RSD) ≤ 11.4%. Finally, the developed multi-mycotoxin method was applied for screening of these mycotoxins in 11 commercial locust samples. Only AFB1 and AFB2 were found in six samples, and the contamination levels ranged from 0.12 to 4.4 μg/kg, which were lower than the maximum residue limit and can be used safely. This is the first report on the exploration of contamination parts and levels of multi-mycotoxins in medicinal and edible locust. The combined method of SEM and HPLC-FLD exhibited advantages of low cost, high sensitivity, rapid determination, convenience and especially intuitive judgment, which is proposed for contamination parts observation, for the large-scale quantification of multi-mycotoxins in other medicinal animal matrices.
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Affiliation(s)
- Dandan Kong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences - Peking Union Medical College, Beijing, China
| | - Weijun Kong
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences - Peking Union Medical College, Beijing, China
| | - Xiaoli Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences - Peking Union Medical College, Beijing, China
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences - Peking Union Medical College, Beijing, China
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40
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Tang Y, Tang D, Zhang J, Tang D. Novel quartz crystal microbalance immunodetection of aflatoxin B 1 coupling cargo-encapsulated liposome with indicator-triggered displacement assay. Anal Chim Acta 2018; 1031:161-168. [PMID: 30119735 DOI: 10.1016/j.aca.2018.05.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 05/02/2018] [Accepted: 05/07/2018] [Indexed: 01/11/2023]
Abstract
A simple and sensitive quartz crystal microbalance (QCM) immunosensing platform was designed for the high-efficient detection of aflatoxin B1 (AFB1) in foodstuff. Initially, phenoxy-derived dextran molecule was immobilized on the surface of QCM gold substrate by using thiolated β-cyclodextrin based on the supramolecular host-guest chemistry between phenoxy group and cyclodextrin. Then, AFB1-bovine serum albumin (AFB1-BSA)-conjugated concanavalin A (Con A) was assembled onto the QCM probe through the dextran-Con A interaction. Glucose-loaded nanoliposome, labeled with monocolonal anti-AFB1 antibody, was used for the amplification of QCM signal. Upon target AFB1 introduction, the analyte competed with the immobilized AFB1-BSA on the probe for the labeled anti-AFB1 antibody on the nanoliposome. Based on specific antigen-antibody reaction, the amount of the conjugated nanoliposomes on the QCM probe gradually decreased with the increment of target AFB1 in the sample. Upon injection of Triton X-100 in the detection cell, the carried nanoliposome was lysed to release the encapsulated glucose molecules. Thanks to the stronger affinity of Con A toward glucose than that of dextran, AFB1-BSA-labeled Con A was displaced from the QCM probe, resulting in the change of the local frequency. Under the optimum conditions, the shift of the functionalized QCM immunosensing interface in the frequency shift was proportional to the concentration of target AFB1 within a dynamic range from 1.0 ng kg-1 to 10 μg kg-1 at a low detection limit of 0.83 ng kg-1. In addition, the acceptable assayed results on precision, reproducibility, specificity and method accuracy for the analysis of real samples were also acquired. Importantly, our strategy can provide a signal-on competitive immunoassay for the detection of small molecules, e.g., mycotoxins and biotoxins, thereby representing a versatile sensing schemes by controlling the corresponding antibody or hapten in the analysis of food safety.
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Affiliation(s)
- Ying Tang
- Collaborative Innovation Center of Targeted Therapeutics and Innovation, Chongqing Key Laboratory of Kinase Modulators As Innovative Medicine, Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics, International Academy of Targeted Therapeutics and Innovation, Chongqing University of Arts and Sciences, Chongqing, 402160, PR China
| | - Dianyong Tang
- Collaborative Innovation Center of Targeted Therapeutics and Innovation, Chongqing Key Laboratory of Kinase Modulators As Innovative Medicine, Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics, International Academy of Targeted Therapeutics and Innovation, Chongqing University of Arts and Sciences, Chongqing, 402160, PR China.
| | - Jin Zhang
- Collaborative Innovation Center of Targeted Therapeutics and Innovation, Chongqing Key Laboratory of Kinase Modulators As Innovative Medicine, Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics, International Academy of Targeted Therapeutics and Innovation, Chongqing University of Arts and Sciences, Chongqing, 402160, PR China
| | - Dianping Tang
- Collaborative Innovation Center of Targeted Therapeutics and Innovation, Chongqing Key Laboratory of Kinase Modulators As Innovative Medicine, Chongqing Engineering Laboratory of Targeted and Innovative Therapeutics, International Academy of Targeted Therapeutics and Innovation, Chongqing University of Arts and Sciences, Chongqing, 402160, PR China; Key Laboratory of Analytical Science of Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou, 350116, PR China.
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Porous silicon based photoluminescence immunosensor for rapid and highly-sensitive detection of Ochratoxin A. Biosens Bioelectron 2018; 102:661-667. [DOI: 10.1016/j.bios.2017.11.048] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 11/13/2017] [Accepted: 11/15/2017] [Indexed: 01/03/2023]
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Zhang H, Lv J, Jia Z. Detection of Ammonia-Oxidizing Bacteria (AOB) Using a Porous Silicon Optical Biosensor Based on a Multilayered Double Bragg Mirror Structure. SENSORS 2018; 18:s18010105. [PMID: 29301268 PMCID: PMC5795878 DOI: 10.3390/s18010105] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 12/23/2017] [Accepted: 12/28/2017] [Indexed: 11/28/2022]
Abstract
We successfully demonstrate a porous silicon (PS) double Bragg mirror by electrochemical etching at room temperature as a deoxyribonucleic acid (DNA) label-free biosensor for detecting ammonia-oxidizing bacteria (AOB). Compared to various other one-dimension photonic crystal configurations of PS, the double Bragg mirror structure is quite easy to prepare and exhibits interesting optical properties. The width of high reflectivity stop band of the PS double Bragg mirror is about 761 nm with a sharp and deep resonance peak at 1328 nm in the reflectance spectrum, which gives a high sensitivity and distinguishability for sensing performance. The detection sensitivity of such a double Bragg mirror structure is illustrated through the investigation of AOB DNA hybridization in the PS pores. The redshifts of the reflectance spectra show a good linear relationship with both complete complementary and partial complementary DNA. The lowest detection limit for complete complementary DNA is 27.1 nM and the detection limit of the biosensor for partial complementary DNA is 35.0 nM, which provides the feasibility and effectiveness for the detection of AOB in a real environment. The PS double Bragg mirror structure is attractive for widespread biosensing applications and provides great potential for the development of optical applications.
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Affiliation(s)
- Hongyan Zhang
- School of Physical Science and Technology, Xinjiang University, Urumqi 830046, China.
| | - Jie Lv
- College of Resource and Environment Science, Xinjiang University, Urumqi 830046, China.
| | - Zhenhong Jia
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China.
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Liu X, Jiang H. Construction and Potential Applications of Biosensors for Proteins in Clinical Laboratory Diagnosis. SENSORS (BASEL, SWITZERLAND) 2017; 17:E2805. [PMID: 29207528 PMCID: PMC5750678 DOI: 10.3390/s17122805] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/20/2017] [Accepted: 11/30/2017] [Indexed: 12/11/2022]
Abstract
Biosensors for proteins have shown attractive advantages compared to traditional techniques in clinical laboratory diagnosis. In virtue of modern fabrication modes and detection techniques, various immunosensing platforms have been reported on basis of the specific recognition between antigen-antibody pairs. In addition to profit from the development of nanotechnology and molecular biology, diverse fabrication and signal amplification strategies have been designed for detection of protein antigens, which has led to great achievements in fast quantitative and simultaneous testing with extremely high sensitivity and specificity. Besides antigens, determination of antibodies also possesses great significance for clinical laboratory diagnosis. In this review, we will categorize recent immunosensors for proteins by different detection techniques. The basic conception of detection techniques, sensing mechanisms, and the relevant signal amplification strategies are introduced. Since antibodies and antigens have an equal position to each other in immunosensing, all biosensing strategies for antigens can be extended to antibodies under appropriate optimizations. Biosensors for antibodies are summarized, focusing on potential applications in clinical laboratory diagnosis, such as a series of biomarkers for infectious diseases and autoimmune diseases, and an evaluation of vaccine immunity. The excellent performances of these biosensors provide a prospective space for future antibody-detection-based disease serodiagnosis.
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Affiliation(s)
- Xuan Liu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Southeast University, Nanjing 210003, China.
| | - Hui Jiang
- School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
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