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Zheng L, Li Q, Deng X, Guo Q, Liu D, Nie G. A novel electrochemiluminescence biosensor based on Ru(bpy) 32+-functionalized MOF composites and cycle amplification technology of DNAzyme walker for ultrasensitive detection of kanamycin. J Colloid Interface Sci 2024; 659:859-867. [PMID: 38218089 DOI: 10.1016/j.jcis.2024.01.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/21/2023] [Accepted: 01/06/2024] [Indexed: 01/15/2024]
Abstract
An electrochemiluminescence (ECL) sensing platform for ultrasensitive and highly selective detection of kanamycin (KANA) was developed based on the prepared Ru(bpy)32+-functionalized MOF (Ru@MOF) composites by hydrothermal synthesis and Ag+-dependent DNAzyme. In this sensor, the stem-loop DNA (HP) with the ferrocene (Fc) was used as substrate chain to quench the ECL emission generated by the Ru@MOF. Using the specific recognition effect between KANA and the KANA aptamer (Apt) and the DNAzyme dependence on Ag+, the KANA aptamer as the pendant strand of the DNAzyme was assembled on Ru@MOF/GCE with the aptamer. When both Ag+ and KANA were present simultaneously, KANA specifically was binded to KANA aptamer as a pendant chain. Subsequently, Ag+-dependent DNAzyme walker continuously cleaved the HP chain and released the modified end of Fc to restore the ECL signal of Ru@MOF composites, thus achieving selective and ultrasensitive detection of KANA. The constructed KANA biosensor exhibits a wide detection range (30 pM to 300 μM) accompanied by a low detection limit (13.7 pM). The KANA in seawater and milk samples are determined to evalute the practical application results of the sensor. This ECL detection strategy could be used for detecting other similar analytes and has broad potential application in biological analysis.
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Affiliation(s)
- Lu Zheng
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Qing Li
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Xukun Deng
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Qingfu Guo
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Dandan Liu
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Guangming Nie
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
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2
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Nie Q, Zhang B, Li R, Yang Y, Ren J, Qiu L, Lu Y, Zhu L, Shen H, Liu Y, You R. Ultra-sensitive detection of tumor necrosis factor alpha based on silver-coated gold core shell and magnetically separated recognition of SERS aptamer sensors. Mikrochim Acta 2023; 191:41. [PMID: 38112843 DOI: 10.1007/s00604-023-06049-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 10/15/2023] [Indexed: 12/21/2023]
Abstract
A highly sensitive tumor necrosis factor α (TNF-α) detection method based on a surface-enhanced Raman scattering (SERS) magnetic patch sensor is reported. Magnetic beads (MNPs) and core shells were used as the capture matrix and signaling probe, respectively. For this purpose, antibodies were immobilized on the surface of magnetic beads, and then Au@4-MBN@Ag core-shell structures coupled with aptamers and TNF-α antigen were added sequentially to form a sandwich immune complex. Quantitative analysis was performed by monitoring changes in the characteristic SERS signal intensity of the Raman reporter molecule 4-MBN. The results showed that the limit of detection (LOD) of the proposed method was 4.37 × 10-15 mg·mL-1 with good linearity (R2 = 0.9918) over the concentration range 10-12 to 10-5 mg·mL-1. Excellent assay accuracy was also demonstrated, with recoveries in the range 102% to 114%. Since all reactions occur in solution and are separated by magnetic adsorption of magnetic beads, this SERS-based immunoassay technique solves the kinetic problems of limited diffusion and difficult separation on solid substrates. The method is therefore expected to be a good clinical tool for the diagnosis of the inflammatory biomarker THF-α and in vivo inflammation screening.
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Affiliation(s)
- Qingling Nie
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineer, Fujian Key Laboratory of Polymer Materials, Engineering Research Center of Industrial Biocatalysis, Fujian Province Higher Education Institutes, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Bohan Zhang
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineer, Fujian Key Laboratory of Polymer Materials, Engineering Research Center of Industrial Biocatalysis, Fujian Province Higher Education Institutes, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Rong Li
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineer, Fujian Key Laboratory of Polymer Materials, Engineering Research Center of Industrial Biocatalysis, Fujian Province Higher Education Institutes, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Yixuan Yang
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineer, Fujian Key Laboratory of Polymer Materials, Engineering Research Center of Industrial Biocatalysis, Fujian Province Higher Education Institutes, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Junjie Ren
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineer, Fujian Key Laboratory of Polymer Materials, Engineering Research Center of Industrial Biocatalysis, Fujian Province Higher Education Institutes, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Liting Qiu
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineer, Fujian Key Laboratory of Polymer Materials, Engineering Research Center of Industrial Biocatalysis, Fujian Province Higher Education Institutes, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Yudong Lu
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineer, Fujian Key Laboratory of Polymer Materials, Engineering Research Center of Industrial Biocatalysis, Fujian Province Higher Education Institutes, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Lanjin Zhu
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineer, Fujian Key Laboratory of Polymer Materials, Engineering Research Center of Industrial Biocatalysis, Fujian Province Higher Education Institutes, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Huiying Shen
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineer, Fujian Key Laboratory of Polymer Materials, Engineering Research Center of Industrial Biocatalysis, Fujian Province Higher Education Institutes, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Yunzhen Liu
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineer, Fujian Key Laboratory of Polymer Materials, Engineering Research Center of Industrial Biocatalysis, Fujian Province Higher Education Institutes, Fujian Normal University, Fuzhou, 350007, Fujian, China.
| | - Ruiyun You
- College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineer, Fujian Key Laboratory of Polymer Materials, Engineering Research Center of Industrial Biocatalysis, Fujian Province Higher Education Institutes, Fujian Normal University, Fuzhou, 350007, Fujian, China.
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3
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Lin Y, Tao X, Gao S, Li N, Dai Z. Highly sensitive and stable fluorescent aptasensor based on an exonuclease III-assisted amplification strategy for ATP detection. Anal Biochem 2023:115210. [PMID: 37329966 DOI: 10.1016/j.ab.2023.115210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/07/2023] [Accepted: 06/07/2023] [Indexed: 06/19/2023]
Abstract
Fluctuations in intracellular adenosine triphosphate (ATP) concentration are closely associated with some cancer diseases. Thus, it is a worthwhile undertaking to predict sickness by monitoring changes in ATP levels. However, the detection limits of current fluorescent aptamer sensors for ATP detection are in the range of nmol L-1 to μmol L-1. It has become crucial to employ amplification strategies to increase the sensitivity of fluorescent aptamer sensors. In the current paper, a duplex hybrid aptamer probe was developed based on exonuclease III (Exo III)-catalyzed target recycling amplification for ATP detection. The target ATP forced the duplex probe configuration to change into a molecular beacon that can be hydrolyzed with Exo III to achieve the target ATP cycling to amplify the fluorescence signal. Significantly, many researchers ignore that FAM is a pH-sensitive fluorophore, leading to the fluorescence instability of FAM-modified probes in different pH buffers. The negatively charged ions on the surface of AuNPs were replaced by new ligands bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassium salt (BSPP) to improve the drawback of FAM instability in alkaline solutions in this work. The aptamer probe was designed to eliminate the interference of other similar small molecules, showing specific selectivity and providing ultra-sensitive detection of ATP with detection limits (3σ) as low as 3.35 nM. Such detection limit exhibited about 4-500-fold better than that of the other amplification strategies for ATP detection. Thus, a relatively general high sensitivity detection system can be established according to the wide target adaptability of aptamers, which can form specific binding with different types of targets.
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Affiliation(s)
- Yushuang Lin
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Xuejiao Tao
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Suhan Gao
- School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, China
| | - Nan Li
- School of Chemistry, Tiangong University, Tianjin, 300387, China.
| | - Zhao Dai
- School of Chemical Engineering and Technology, Tiangong University, Tianjin, 300387, China.
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Hong S, Yang Z, Mou Q, Luan Y, Zhang B, Pei R, Lu Y. Monitoring leaching of Cd 2+ from cadmium-based quantum dots by an Cd aptamer fluorescence sensor. Biosens Bioelectron 2023; 220:114880. [PMID: 36402100 PMCID: PMC10139768 DOI: 10.1016/j.bios.2022.114880] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/29/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022]
Abstract
Quantum Dots (QDs) have been demonstrated with outstanding optical properties and thus been widely used in many biological and biomedical studies. However, previous studies have shown that QDs can cause cell toxicity, mainly attributable to the leached Cd2+. Therefore, identifying the leaching kinetics is very important to understand QD biosafety and cytotoxicity. Toward this goal, instrumental analyses such as inductively coupled plasma mass spectrometry (ICP-MS) have been used, which are time-consuming, costly and do not provide real-time or spatial information. To overcome these limitations, we report herein a fast and cost-effective fluorescence sensor based a Cd2+-specific aptamer for real-time monitoring the rapid leaching kinetics of QDs in vitro and in living cells. The sensor shows high specificity towards Cd2+ and is able to measure the Cd2+ leached either from water-dispersed CdTe QDs or two-layered CdSe/CdS QDs. The sensor is then used to study the stability of these two types of QDs under conditions to mimic cellular pH and temperature and the results from the sensor are similar to those obtained from ICP-MS. Finally, the sensor is able to monitor the leaching of Cd2+ from QDs in HeLa cells. The fluorescence aptamer sensor described in this study may find many applications as a tool for understanding biosafety of numerous other Cd-based QDs, including leaching kinetics and toxicity mechanisms in living systems.
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Affiliation(s)
- Shanni Hong
- Department of Medical Imaging Technology, School of Medical Imaging, Fujian Medical University, Fuzhou, Fujian, 350122, PR China; Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; CAS Key Laboratory of Nano-Bio Interfaces, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu, 215123, PR China
| | - Zhenglin Yang
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Quanbing Mou
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Yunxia Luan
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Bingbo Zhang
- Department of Radiology, Tongji Hospital, Shanghai Frontiers Science Center of Nanocatalytic Medicine, The Institute for Biomedical Engineering & Nano Science, School of Medicine, Tongji University, Shanghai, 200065, PR China.
| | - Renjun Pei
- CAS Key Laboratory of Nano-Bio Interfaces, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu, 215123, PR China.
| | - Yi Lu
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
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Zhai H, Wang Y, Yin J, Zhang Y, Guo Q, Sun X, Guo Y, Yang Q, Li F, Zhang Y. Electrochemiluminescence biosensor for determination of lead(II) ions using signal amplification by Au@SiO 2 and tripropylamine-endonuclease assisted cycling process. Mikrochim Acta 2022; 189:317. [PMID: 35930068 DOI: 10.1007/s00604-022-05429-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 07/08/2022] [Indexed: 01/18/2023]
Abstract
MXene@Au as the base and Au@SiO2 as signal amplification factor were used for constructing an ultrasensitive "on-off" electrochemiluminescence (ECL) biosensor for the detection of Pb2+ in water. The use of MXene@Au composite provided a good interface environment for the loading of tris(2,2-bipyridyl)ruthenium(II) (Ru(bpy)32+) on the electrode. Based on resonance energy transfer, the Au (core) SiO2 (shell) (Au@SiO2) nanoparticles stimulate electron transport and promote tripropylamine (TPrA) oxidation. The luminescence effect of Au@SiO2 was five times that of AuNPs and SiO2 nanomaterials alone, and the ECL intensity was greatly improved. In addition, Pb2+ activated the aptamer to exert its endonuclease activity, which realized the signal cycle amplification in the process of Pb2+ detection. When Pb2+ was added, the ECL signal weakened, and the Pb2+ concentration was detected according to the decreased ECL intensity. Under optimized experimental conditions, this aptamer sensor for Pb2+ has a wide detection range (0.1 to 1 × 106 ng L-1) and a low detection limit (0.059 ng L-1). The relative standard deviation (RSD) of the sensor is 0.39-0.99%, and the recovery of spiked standard is between 90.00 and 125.70%. The sensor shows good selectivity and high sensitivity in actual water sample analysis. This signal amplification strategy possibly provides a new method for the detection of other heavy metal ions and small molecules.
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Affiliation(s)
- Hongguo Zhai
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, China
| | - Yue Wang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, China
| | - Jiaqi Yin
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, China
| | - Yuhao Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, China
| | - Qi Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, China
| | - Xia Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, China
| | - Yemin Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, China
| | - Qingqing Yang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, China
| | - Falan Li
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, China.,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, China.,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, China
| | - Yanyan Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, 255049, China. .,Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, 255049, China. .,Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, 255049, China.
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Yuan G, Xia X, Zhang J, Huang J, Xie F, Li X, Chen D, Peng C. A novel "signal on-off-super on" sandwich-type aptamer sensor of CRISPR-Cas12a coupled voltage enrichment assay for VEGF detection. Biosens Bioelectron 2022; 221:114424. [PMID: 35691789 DOI: 10.1016/j.bios.2022.114424] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/30/2022] [Accepted: 05/23/2022] [Indexed: 11/02/2022]
Abstract
Vascular endothelial growth factor (VEGF) plays an important role in atherosclerosis, and the detection of VEGF is critical for the prevention, monitoring, and diagnosis of cardiovascular diseases. Here, a novel "signal on-off-super on" sandwich-type aptamer sensor with a triple signal amplification strategy was developed for the first time. Based on the capture aptamer was labeled with methylene blue (MB) on the internal bases, clustered regularly interspaced short palindromic repeats (CRISPR)-Cas12a-coupled voltage enrichment was used to amplify the electrochemical signal. To improve the analytical performance of the aptamer sensor, gold nanoparticles@Ti3C2Tx-Mxene (AuNPs@Ti3C2Tx-Mxene) were synthesized through the electrodeposition of AuNPs on the Ti3C2Tx-Mxene surface, providing active sites for the immobilization of the aptamer and amplifying the electrochemical signals. The excellent trans-cleavage activity of the CRISPR-Cas12a system was harnessed to cleave signal probes. The cleaved signal probes were enriched using an electrochemical signal instead of complicated target amplification steps before detection. Hence, we report a simplified detection process for amplifying electrochemical signals. Under optimal conditions, the aptamer sensor exhibited high sensitivity, acceptable stability, and reproducibility with a wide linear range from 1 pM to 10 μM (R2 = 0.9917) and an ultralow detection limit of 0.33 pM (S/N = 3). Therefore, we propose a novel strategy of CRISPR-Cas12a-based protein detection that opens a new window for the diagnostic applications of various biomarkers.
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Affiliation(s)
- Guolin Yuan
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, China; Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, 442000, Hubei, PR China
| | - Xianru Xia
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, China; Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, 442000, Hubei, PR China
| | - Jicai Zhang
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, China
| | - Jian Huang
- Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, 442000, Hubei, PR China
| | - Fei Xie
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, China
| | - Xiandong Li
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, China
| | - Dongliang Chen
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, China
| | - Chunyan Peng
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, China; Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, 442000, Hubei, PR China.
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Zhang Y, Li L, Zhang H, Shang J, Li C, Naqvi SMZA, Birech Z, Hu J. Ultrasensitive detection of plant hormone abscisic acid-based surface-enhanced Raman spectroscopy aptamer sensor. Anal Bioanal Chem 2022; 414:2757-2766. [PMID: 35141764 DOI: 10.1007/s00216-022-03923-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 01/09/2022] [Accepted: 01/24/2022] [Indexed: 12/25/2022]
Abstract
Abscisic acid (ABA), as the most common plant hormone in the growth of wheat, can greatly affect the yield when its levels deviate from normal. Therefore, highly sensitive and selective detection of this hormone is greatly needed. In this work, we developed an aptamer sensor based on surface-enhanced Raman spectroscopy (SERS) and applied it for the high sensitivity detection of ABA. Biotin-modified ABA aptamer complement chains were modified on ferrosoferric oxide magnetic nanoparticles (Fe3O4MNPs) and acted as capture probes, and sulfhydryl aptamer (SH-Apt)-modified silver-coated gold nanospheres (Au@Ag NPs) were used as signal probes. Through the recognition of the ABA aptamer and its complementary chains, an aptamer sensor based on SERS was constructed. As SERS internal standard molecules of 4-mercaptobenzoic acid (4-MBA) were encapsulated between the gold core and silver shell of the signal probes; the constructed aptamer sensor generated a strong SERS signal of 4-MBA after magnetic separation. When there were ABA molecules in the detection system, with the preferential binding of ABA aptamer and ABA molecule, the signal probes were released from the capture probes, after magnetic separation, leading to a linear decrease in SERS intensity of 4-MBA. Thus, the detection response was linear over a logarithmic concentration range, with an ultra-low detection limit of 0.67 fM. In addition, the practical use of this assay method was demonstrated in ABA detection from fresh wheat leaves, with a relative error (RE) of 5.43-8.94% when compared with results from enzyme-linked immunosorbent assay (ELISA). The low RE value proves that the aptamer sensor will be a promising method for ABA detection.
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Affiliation(s)
- Yanyan Zhang
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
- Henan International Joint Laboratory of Laser Technology in Agricultural Sciences, Zhengzhou, 450002, China
| | - Linze Li
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
- Henan International Joint Laboratory of Laser Technology in Agricultural Sciences, Zhengzhou, 450002, China
| | - Hao Zhang
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
- Henan International Joint Laboratory of Laser Technology in Agricultural Sciences, Zhengzhou, 450002, China
| | - Junjian Shang
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
- Henan International Joint Laboratory of Laser Technology in Agricultural Sciences, Zhengzhou, 450002, China
| | - Can Li
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
- Henan International Joint Laboratory of Laser Technology in Agricultural Sciences, Zhengzhou, 450002, China
| | - Syed Muhammad Zaigham Abbas Naqvi
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
- Henan International Joint Laboratory of Laser Technology in Agricultural Sciences, Zhengzhou, 450002, China
| | - Zephania Birech
- Department of Physics, University of Nairobi, Nairobi, 30197, Kenya
| | - Jiandong Hu
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China.
- Henan International Joint Laboratory of Laser Technology in Agricultural Sciences, Zhengzhou, 450002, China.
- State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, 45002, China.
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Écija-Arenas Á, Kirchner EM, Hirsch T, Fernández-Romero JM. Development of an aptamer-based SPR-biosensor for the determination of kanamycin residues in foods. Anal Chim Acta 2021; 1169:338631. [PMID: 34088369 DOI: 10.1016/j.aca.2021.338631] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/27/2021] [Accepted: 05/07/2021] [Indexed: 12/12/2022]
Abstract
A biosensor in which an affinity reaction occurs in the sensitive microzone through the use of specific aptamers to determine kanamycin residues in agri-food samples has been developed. It is an irreversible and continuous flow aptameric biosensor (aptasensor) in which the signal variations are monitored by surface plasmon resonance (SPR) measurements based on the specific interaction of the aptamer with the antibiotic. The signal variation is proportional to the analyte concentration. Graphene is known for efficient binding of molecules with its π-electron system, so a monolayer of graphene prepared from chemical vapor deposition (CVD) has been compared to a multilayer of graphene made from reduced graphene oxide (rGO) for immobilization of the aptamer on the gold surface of the physicochemical transducer. The best results have been obtained with CVD graphene. The dynamic range was between 1 and 100 μmol L-1 of kanamycin concentration (r2 = 0.9981, n = 7, r = 4), with a limit of detection of 285 nmol L-1 and a sampling frequency of 6 h-1. The precision, expressed as relative standard deviation (RSD%), was established in the range of 1.49 and 3.89%, calculated for 1, 10, and 50 μmol L-1. The selectivity was studied applying the described method to determine other antibiotics, obtaining no significant difference in the analytical signal. The method was applied to determine kanamycin residues in milk samples with recovery values ranging between 90 and 96%.
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Affiliation(s)
- Ángela Écija-Arenas
- Departamento de Química Analítica, Instituto Universitario de Investigación en Química Fina y Nanoquímica (IUNAN), Universidad de Córdoba, Campus de Rabanales, Edificio Anexo "Marie Curie", 14071, Córdoba, Spain
| | - Eva-Maria Kirchner
- Institute of Analytical Chemistry, Chemo and Biosensors, University of Regensburg, 93040, Regensburg, Germany
| | - Thomas Hirsch
- Institute of Analytical Chemistry, Chemo and Biosensors, University of Regensburg, 93040, Regensburg, Germany
| | - Juan Manuel Fernández-Romero
- Departamento de Química Analítica, Instituto Universitario de Investigación en Química Fina y Nanoquímica (IUNAN), Universidad de Córdoba, Campus de Rabanales, Edificio Anexo "Marie Curie", 14071, Córdoba, Spain.
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9
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Zheng XT, Tan YN. Recent development of nucleic acid nanosensors to detect sequence-specific binding interactions: From metal ions, small molecules to proteins and pathogens. Sens Int 2020; 1:100034. [PMID: 34766041 DOI: 10.1016/j.sintl.2020.100034] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/13/2020] [Accepted: 08/13/2020] [Indexed: 02/07/2023] Open
Abstract
DNA carries important genetic instructions and plays vital roles in regulating biological activities in living cells. Proteins such as transcription factors binds to DNA to regulate the biological functions of DNA, and similarly many drug molecules also bind to DNA to modulate its functions. Due to the importance of protein-DNA and drug-DNA binding, there has been intense effort in developing novel nanosensors in the same length scale as DNA, to effectively study these binding interactions in details. In addition, aptamers can be artificially selected to detect metal ions and pathogens such as bacteria and viruses, making nucleic acid nanosensors more versatile in detecting a large variety of analytes. In this minireview, we first explained the different types and binding modes of protein-DNA and drug-DNA interactions in the biological systems, as well as aptamer-target binding. This was followed by the review of five types of nucleic acid nanosensors based on optical or electrochemical detection. The five types of nucleic acid nanosensors utilizing colorimetric, dynamic light scattering (DLS), surface-enhanced Raman spectroscopy (SERS), fluorescence and electrochemical detections have been recently developed to tackle some of the challenges in high-throughput screening technology for large scale analysis, which is especially useful for drug development and mass screening for pandemic outbreak such as SARS or COVID-19.
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10
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Yi J, Wu P, Li G, Xiao W, Li L, He Y, He Y, Ding P, Chen C. A composite prepared from carboxymethyl chitosan and aptamer-modified gold nanoparticles for the colorimetric determination of Salmonella typhimurium. Mikrochim Acta 2019; 186:711. [PMID: 31650251 DOI: 10.1007/s00604-019-3827-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 09/14/2019] [Indexed: 11/27/2022]
Abstract
An aptamer-based assay is described for the determination of Salmonella typhimurium (S. typh). Carboxymethyl chitosan was loaded with amino-modified aptamer against S. typh, and then adsorbed on gold nanoparticles by electrostatic interaction to form a composite that acts as the molecular recognition element. In the presence of S. typh, it will be bound by the aptamer, and this changes the structure of the recognition element. On addition of salt solution, the gold nanoparticles agglomerate so that the color of the solution changes from red to blue. S. typh can be detected via measurement of the absorbance at 550 nm. Absorbance increases linearly with the logarithm of the S. typh concentration in the range from 100 to 109 cfu·mL-1. The limit of detection is 16 cfu·mL-1. The specificity and practicability of the assay were evaluated. The recoveries of S. typh from spiked milk samples are between 92.4 and 97.2%. The analytical results are basically consistent with those of a plate counting method. Graphical abstract Schematic representation of the colorimetric assay for Salmonella typhimuium (S. typh) using carboxymethyl chitosan (CMCS)-aptamer (Apt)-gold nanoparticles (AuNPs) composites.
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Affiliation(s)
- Jiecan Yi
- Xiang Ya School of Public Health, Central South University, Changsha, 410078, Hunan, China
| | - Pian Wu
- Xiang Ya School of Public Health, Central South University, Changsha, 410078, Hunan, China
| | - Guiyin Li
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541014, Guangxi, China
| | - Wen Xiao
- Hunan Institute of Food Quality Supervision Inspection and Research, Changsha, 410000, Hunan, China
| | - Lei Li
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Yayuan He
- Xiang Ya School of Public Health, Central South University, Changsha, 410078, Hunan, China
| | - Yafei He
- Xiang Ya School of Public Health, Central South University, Changsha, 410078, Hunan, China
| | - Ping Ding
- Xiang Ya School of Public Health, Central South University, Changsha, 410078, Hunan, China.
| | - Cuimei Chen
- School of Public Health, Xiangnan University, Chenzhou, 423000, Hunan, China.
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Lan Y, Qin G, Wei Y, Dong C, Wang L. Highly sensitive analysis of tetrodotoxin based on free-label fluorescence aptamer sensing system. Spectrochim Acta A Mol Biomol Spectrosc 2019; 219:411-418. [PMID: 31059893 DOI: 10.1016/j.saa.2019.04.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 06/09/2023]
Abstract
Tetrodotoxin (TTX) specifically can bind to its nucleic acid aptamer (TTX-aptamer) and cause the conformation of TTX-aptamer to be switched from the single-strand random coiling form to the compact neck ring structure. Based on the microenvironment difference of the fluorescence reporter, berberine in between the single-stranded coil oligonucleotides and the structure of the neck ring, a simple, rapid and sensitive label-free fluorescence aptamer sensing system for detection of TTX was developed. Various factors affecting the analysis of TTX were optimized, including the concentration of berberine, ion strength, pH, reaction time, the concentration of TTX-aptamer. Under the optimal experimental conditions, the fluorescence intensity of the sensing system and the concentration of TTX showed a good linear relationship in the range of 0.1 nM to 500 nM, with the detection limit of 0.074 nM. The standard recovery test result exhibited that the recoveries of TTX in serum samples were 96.54%-106.40%. The established method has the advantages of high specificity, good sensitivity, quickness and convenience, low cost, and can be used for the detection of TTX in serum samples.
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Affiliation(s)
- Yifeng Lan
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China
| | - Guojie Qin
- Institute of Horticulture, Shanxi Academy of Agriculture Science, Taiyuan 030031, PR China
| | - Yanli Wei
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China.
| | - Chuan Dong
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China
| | - Li Wang
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, PR China
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12
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Zhou N, Ma Y, Hu B, He L, Wang S, Zhang Z, Lu S. Construction of Ce-MOF@COF hybrid nanostructure: Label-free aptasensor for the ultrasensitive detection of oxytetracycline residues in aqueous solution environments. Biosens Bioelectron 2018; 127:92-100. [PMID: 30594079 DOI: 10.1016/j.bios.2018.12.024] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Porous organic framework (COF) nanomaterials have drawn increasing attention and showed promising potential in the applications of various fields. Nevertheless, its applications in biosensing or biomedical fields are still in the early stage. In this work, we designed and synthesized a series of nanohybrids of COF and Ce-based metal organic framework (Ce-MOF) for the first time as label-free bioplatforms for a sensitive electrochemical aptasensor to detect oxytetracycline (OTC). A novel kinds of Ce-MOF@COF hybrids were prepared by adding different dosages of COF, into the preparation system of Ce-MOF, for which COF was synthesized using melamine and cyanutic acidmonomers through polycondensation (represented by MCA). Basic characterizations revealed that Ce-MOF@MCA nanohybrids not only remained their orignal crystal and chemical structure and features, such as different Ce species containing in Ce-MOF (Ce3+ and Ce4+), various functional amino-groups of MCA, and individual frameworks, but also showed a large specific surface area and interpenetrated morphologies. As a result, the Ce-MOF@MCA hybrid with high content of MCA exhibited high bioaffinity toward the OTC-targeted aptamer, further leading to the incremental detection effect for OTC detection. Among different hybrid-based aptasensors, the Ce-MOF@MCA-based one with an MCA dosage of 500 mg exhibited the lowest limit of detection at 17.4 fg mL-1 within a wider linearity of the OTC concentration within 0.1-0.5 ng mL-1. Additionally, the fabricated aptasensor displayed excellent analytical performance with great reproducibility, high selectivity and stability, and acceptable applicability for detecting OTC in various aqueous solutions, including milk, wastewater, and urine samples. This new Ce-MOF@MCA hybrid will become an excellent aptasensors platform for detecting various analytes, such as antibiotics, heavy metal ions, or cancer markers, and it have shown the promissing application potentials in the fields of biomedicine, food safety and environmental monitoring.
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Affiliation(s)
- Nan Zhou
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou 450052, PR China
| | - Yashen Ma
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 136, Science Avenue, Zhengzhou 450001, PR China
| | - Bin Hu
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 136, Science Avenue, Zhengzhou 450001, PR China
| | - Linghao He
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 136, Science Avenue, Zhengzhou 450001, PR China
| | - Shijun Wang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou 450052, PR China.
| | - Zhihong Zhang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou University of Light Industry, No. 136, Science Avenue, Zhengzhou 450001, PR China.
| | - Siyu Lu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450000, China.
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13
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Zhang M, Zhou F, Zhou D, Chen D, Hai H, Li J. An aptamer biosensor for leukemia marker mRNA detection based on polymerase-assisted signal amplification and aggregation of illuminator. Anal Bioanal Chem 2018; 411:139-146. [PMID: 30374725 DOI: 10.1007/s00216-018-1424-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/27/2018] [Accepted: 10/09/2018] [Indexed: 02/06/2023]
Abstract
A novel electrochemical luminescence (ECL) aptamer biosensor via polymerase amplification is constructed for label-free detection of leukemia marker mRNA (miR-16). In order to achieve the ultrasensitive detection of the target mRNA, the cyclic target chain displacement polymerization of leukemia marker mRNA assisted with Klenow fragment of DNA polymerase is employed. The determination is carried out by recording the ECL emission of pyridine ruthenium (Ru(bpy)32+) complexes embedded into the assistance DNA (ADNA) loaded on the nanogold surface, after the hybridization reaction between the probe DNA (PDNA) and the remaining sequence of the CP's stem part, and the formation of a core-shell sun-like structure. The mercapto-modified capture DNA (CP) is immobilized on the surface of a magneto-controlled glassy carbon electrode by Au-S bond. The CP is opened and hybridized with the target mRNA to form double-stranded DNA. In the presence of polymerase, primer DNA, and bases (dNTPs), the primer chain gets access to its complementary sequence of the stem part and then triggers a polymerization of the DNA strand, leading to the release of mRNA and starting the next polymerization cycle. Finally, the composite of PDNA-covered and ADNA-covered (embedded with Ru(bpy)32+) gold nanoparticles (hereafter called AuNPs@(PDNA+ADNA-Ru(bpy)32+) is added, and the ECL intensity is recorded. Because of the polymerization cycle and the aggregation of the illuminator of Ru(bpy)32+, the detected signal is amplified significantly. The results showed that the corresponding ECL signal has a good linear relationship with a logarithm of target mRNA concentration in the range of 1 × 10-16 to 1 × 10-7 mol/L, with a detection limit of 4.3 × 10-17 mol/L. The mRNA spiked in the human serum sample is determined, and the recoveries are from 97.2 to 102.0%. This sensor demonstrates good selectivity, stability, and reproducibility. Graphical abstract ᅟ.
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Affiliation(s)
- Meng Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China
| | - Fenyue Zhou
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China
| | - Deqi Zhou
- College of Biological Sciences, University of California - Davis, Davis, CA, 95616, USA
| | - Dongli Chen
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China
| | - Hong Hai
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China.
| | - Jianping Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China.
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14
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Pu H, Xie X, Sun DW, Wei Q, Jiang Y. Double strand DNA functionalized Au@Ag Nps for ultrasensitive detection of 17β-estradiol using surface-enhanced raman spectroscopy. Talanta 2018; 195:419-425. [PMID: 30625564 DOI: 10.1016/j.talanta.2018.10.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/03/2018] [Accepted: 10/08/2018] [Indexed: 11/15/2022]
Abstract
A detection method for 17β-estradiol (E2) using surface-enhanced Raman scattering (SERS)-based aptamer sensor was presented. Raman reporter molecule Cy3 labeled E2-aptamer and DNA functionalized gold-silver core-shell nanoparticles (Au@Ag CS NPs) offered SERS with high sensitivity and selectivity. Based on the fabricated double strand DNA-immobilized gold-silver core-shell nanoparticles (Au@Ag NPs), SERS signal intensity of Raman reporter changed with the number of Cy3-labeled aptamer attached to the core-shell nanoparticles due to the strong binding affinity between the aptamers and E2 with different concentrations. A wide linear range from 1.0 × 10-13 to 1.0 × 10-9 was obtained for the detection of E2, with a low detection limit of 2.75 fM. This proposed method showed highly sensitive and selective for detecting E2, and could be used to determine E2 in actual samples.
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Affiliation(s)
- Hongbin Pu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
| | - Xiaohui Xie
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
| | - Da-Wen Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Food Refrigeration and Computerized Food Technology (FRCFT), Agriculture and Food Science Centre, University College Dublin, National University of Ireland, Belfield, Dublin 4, Ireland.
| | - Qingyi Wei
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
| | - Yingfen Jiang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, Guangzhou Higher Education Mega Center, Guangzhou 510006, China
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15
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Zhang K, Gan N, Hu F, Chen X, Li T, Cao J. Microfluidic electrophoretic non-enzymatic kanamycin assay making use of a stirring bar functionalized with gold-labeled aptamer, of a fluorescent DNA probe, and of signal amplification via hybridization chain reaction. Mikrochim Acta 2018; 185:181. [PMID: 29594631 DOI: 10.1007/s00604-017-2635-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Accepted: 12/22/2017] [Indexed: 01/12/2023]
Abstract
The authors describe an enzyme-free aptamer-based assay for the determination of the model antibiotic kanamycin (Kana). The method is making use of (a) microfluidic chip electrophoresis; (b) a stirring bar carrying a gold-labeled aptamer probe, and (c) the hybridization chain reaction (HCR) for signal amplification. Firstly, a stirring bar (length: 1 cm; diameter: 0.2 mm) was modified with a large amount of duplex DNA and then hybridized with aptamer and its partially complementary chains (cDNA). In the presence of Kana, the binding between the Kana and aptamer unwinds the duplex structures and releases a corresponding amount of cDNA into the supernatant. The released cDNA triggers the HCR in the presence of H1 and H2 DNA hairpin to produce a large amount of duplex DNA chains with different lengths. At the same time, the amounts of H1 and H2 are reduced. The decreased signal of H1/H2 after several HCR cycles can be used to quantify kana in the 1 pg·mL-1 to 10 ng·mL-1, with a detection limit of 0.29 pg·mL-1. The signal is generated by reading the fluorescence, best at excitation/emission maxima of 470/525 nm. The whole detection process takes 3 min only. The assay was employed to the detection of Kana in spiked milk and fish samples. Results are consistent with those of an enzyme linked immunosorbent assay. The assay has high throughput, high selectivity, and high amplification capability. Graphical abstract Schematic of a stirring bar functionalized with gold-labeled aptamer acting as the capture probe. It can capture the target and release primer simultaneously. The primer triggers the hybridization chain reaction inducing the consumption of H1 and H2. After a certain reaction time, the mixture is injected into the MCE platform for microfluidic electrophoretic separation and fluorometric detection.
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16
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Kim JY, Park JH, Kim MI, Lee HH, Kim HL, Jeong KS, Moon SO, Kang PW, Park KW, Lee YH, Chun BW. Identification of female-specific blood stains using a 17β-estradiol-targeted aptamer-based sensor. Int J Legal Med 2017; 132:91-98. [PMID: 29086052 DOI: 10.1007/s00414-017-1718-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 10/11/2017] [Indexed: 01/08/2023]
Abstract
Blood stain evidence obtained from a violent crime scene provides decisive clues that can enable a case to be solved through forensic analyses such as genetic identification. However, collected samples usually contain a mixture of biological material from different sources, making genetic identification difficult. To address this issue, we developed an activatable aptamer sensor targeting 17β-estradiol for detection of female-specific blood in mixed samples. With the sensor, we were able to detect blood originating from females using a variable light source (495 nm). The sensor was especially sensitive to blood from young females (10-40 years) but not to blood from older females (≥ 50 years). Genomic DNA was extracted from the female blood specimens identified by this method and used for quantification and short tandem repeat genotyping. We confirmed that there was no fluorescence interference from the aptamer sensor. These results indicate that this novel aptamer sensor can be used to analyze evidentiary blood samples and thereby facilitate subsequent genetic identification.
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Affiliation(s)
- Joo-Young Kim
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Jung-Hyun Park
- Mibyeong Research Center, Korea Institute of Oriental Medicine, Daejeon, 34054, Republic of Korea
| | - Man Il Kim
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Hye Hyeon Lee
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Hye Lim Kim
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Kyu-Sik Jeong
- Forensic DNA Division, National Forensic Service, Wonju, 26460, Republic of Korea
| | - Sang-Ok Moon
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Pil-Won Kang
- Crime-scene DNA Section, National Forensic Service, Gwangju Institute, Gwangju, 57231, Republic of Korea
| | - Ki-Won Park
- Forensic DNA Division, National Forensic Service, Wonju, 26460, Republic of Korea
| | - Yang-Han Lee
- Forensic DNA Division, National Forensic Service, Wonju, 26460, Republic of Korea
| | - Byung-Won Chun
- Forensic DNA Division, National Forensic Service, Wonju, 26460, Republic of Korea.
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17
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Fan D, Zhai Q, Zhou W, Zhu X, Wang E, Dong S. A label-free colorimetric aptasensor for simple, sensitive and selective detection of Pt (II) based on platinum (II)-oligonucleotide coordination induced gold nanoparticles aggregation. Biosens Bioelectron 2016; 85:771-776. [PMID: 27281107 DOI: 10.1016/j.bios.2016.05.080] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 05/12/2016] [Accepted: 05/23/2016] [Indexed: 01/04/2023]
Abstract
Herein, a gold nanoparticles (AuNPs) based label-free colorimetric aptasensor for simple, sensitive and selective detection of Pt (II) was constructed for the first time. Four bases (G-G mismatch) mismatched streptavidin aptamer (MSAA) was used to protect AuNPs from salt-induced aggregation and recognize Pt (II) specifically. Only in the presence of Pt (II), coordination occurs between G-G bases and Pt (II), leading to the activation of streptavidin aptamer. Streptavidin coated magnetic beads (MBs) were used as separation agent to separate Pt (II)-coordinated MSAA. The residual less amount of MSAA could not efficiently protect AuNPs anymore and aggregation of AuNPs will produce a colorimetric product. With the addition of Pt (II), a pale purple-to-blue color variation could be observed by the naked eye. A detection limit of 150nM and a linear range from 0.6μM to 12.5μM for Pt (II) could be achieved without any amplification.
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Affiliation(s)
- Daoqing Fan
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China; University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - Qingfeng Zhai
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China; University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - Weijun Zhou
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China; University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - Xiaoqing Zhu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China; University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China; University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China; University of Chinese Academy of Sciences, Beijing 100039, PR China.
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Zhu Y, Zhou C, Yan X, Yan Y, Wang Q. Aptamer-functionalized nanoporous gold film for high-performance direct electrochemical detection of bisphenol A in human serum. Anal Chim Acta 2015; 883:81-9. [PMID: 26088780 DOI: 10.1016/j.aca.2015.05.002] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 04/28/2015] [Accepted: 05/02/2015] [Indexed: 01/17/2023]
Abstract
In the present work, a highly sensitive and selective biosensor based on aptamer-functionalized nanoporous gold film (NPGF) was successfully developed for direct electrochemical detection of bisphenol A (BPA). NPGF was prepared by dealloying Ag from Au/Ag alloy leaf in concentrated nitric acid. The obtained NPGF was attached onto glassy carbon electrode and then was functionalized with BPA-specific aptamer via the formation of Au-S bond. The fabrication of the sensor was characterized by scanning electron microscopy and X-ray photoelectron spectroscopy. NPGF exhibited excellent electrocatalytic activity towards the redox reaction of BPA, which ensured high sensitivity of the sensor. The aptamer-captured BPA showed a pair of redox peaks around 0.35/0.28 V (vs. Ag/AgCl). The experimental parameters in terms of aptamer concentration, reaction time, pH, and temperature were optimized. The calibration plot showed a linear range from 0.1 nM to 100 nM BPA with a remarkable detection limit of 0.056±0.004 nM BPA. Particularly, the successful application of the developed sensor for the detection of BPA in human serum samples suggests its promising potential for clinical diagnosis.
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Affiliation(s)
- Ye Zhu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Chuqing Zhou
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Xupeng Yan
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yan Yan
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Qiang Wang
- Institute of New Energy Materials & Low-Carbon Technologies, Tianjin University of Technology, Tianjin 300384, China.
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Zhao X, Li S, Xu L, Ma W, Wu X, Kuang H, Wang L, Xu C. Up-conversion fluorescence "off-on" switch based on heterogeneous core-satellite assembly for thrombin detection. Biosens Bioelectron 2015; 70:372-5. [PMID: 25845329 DOI: 10.1016/j.bios.2015.03.068] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 03/21/2015] [Accepted: 03/26/2015] [Indexed: 01/09/2023]
Abstract
NaGdF4: Yb, Er nanoparticles, with up-conversion (UC) fluorescence, were used for the first time to build an "off-on" switch based on Au core-UC satellites for thrombin detection. We fabricated the fluorescence sensor using thrombin aptamer modified Au core and complementary sequence modified UC satellites in liquid phase. With optimized assembled conditions, the yield of Au core-UC satellites achieved 80%. The fluorescence of UC nanoparticles quenched when satellite NP attached to Au core NP. Thrombin aptamer on the surface of Au core would bind to targets when thrombin existed in the system, then UC satellites were released and the quenched fluorescence recovered. The sensor showed high specificity for thrombin compared with other biomolecules and the limit of detection reached 3.5 fg/mL. Application of this sensor to detect targets in human serum also achieved satisfactory results. The purpose of this work was to build an ultrasensitive sensor based on Au core-UC satellites for thrombin detection in human serum to achieve diagnosis of diseases.
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Affiliation(s)
- Xueli Zhao
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, PR China
| | - Si Li
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, PR China
| | - Liguang Xu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, PR China.
| | - Wei Ma
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, PR China
| | - Xiaoling Wu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, PR China
| | - Hua Kuang
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, PR China
| | - Libing Wang
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, PR China
| | - Chuanlai Xu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, PR China
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