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Ma N, Zhang J, Kong J, Zhang X. Fluorescence Sensing of Eclampsia Biomarkers via the Immunosorbent Atom Transfer Radical Polymerization Assay. Anal Chem 2024; 96:8450-8457. [PMID: 38728011 DOI: 10.1021/acs.analchem.4c00110] [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: 05/29/2024]
Abstract
Accurate and quantitative detection of pre-eclampsia markers is crucial in reducing pregnancy mortality rates. This study introduces a novel approach utilizing a fluorescent biosensor by the immunosorbent atom transfer radical polymerization (immuno-ATRP) assay to detect the pre-eclampsia protein marker CD81. The critical step used in this sensor is the novel signal amplification strategy of fluorescein polymerization mediated by ferritin-enhanced controlled radical polymerization, which combines with a traditional enzyme-linked immunosorbent assay (ELISA) to further reduce the detection limit of the CD81 protein concentration. The fluorescence intensity was linear versus logarithmic CD81 protein concentration from 0.1 to 10,000 pg mL-1, and the detection limit was 0.067 pg mL-1. Surprisingly, in 30% normal human serum (NHS), the sensor can also detect target protein over 0.1-10,000 pg mL-1, with 0.083 pg mL-1 for the detection limit. Moreover, the proposed biosensor is designed to be cost-effective, making it accessible, particularly in resource-limited settings where expensive detection techniques may not be available. The affordability of this method enables widespread screening and monitoring of preeclampsia, ultimately benefiting many pregnant women by improving their healthcare outcomes. In short, developing of a low-cost and susceptible direct detection method for preeclampsia protein markers, such as CD81, through the use of the immuno-ATRP assay, has significant implications for reducing pregnancy mortality. This method holds promise for early detection, precise treatment, and improved management of preeclampsia, thereby contributing to better maternal and fetal health.
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Affiliation(s)
- Nan Ma
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China
| | - Jian Zhang
- Nanjing Lishui District Hospital of Traditional Chinese Medicine, Nanjing 211200, PR China
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, P. R. China
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Zhao Y, Zhang J, Ma N, Kong J, Zhang X. Vitamin B 12-catalyzed electro-polymerization for ultrasensitive RNA detection. Bioelectrochemistry 2024; 155:108578. [PMID: 37742523 DOI: 10.1016/j.bioelechem.2023.108578] [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: 07/05/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 09/26/2023]
Abstract
Vitamin B12 being a natural catalyst in atom transfer radical polymerization (ATRP), has the advantages of mild reaction conditions, good biocompatibility and high catalytic efficiency. In this report, an electrochemical biosensor of the lung cancer biomarker microRNA-21 (miRNA-21) is designed for early screening of lung cancer with high sensitivity at the femtomolar level. In this approach, hairpin DNA with N3 end group was first attached to the electrode surface. When miRNA-21 was present and paired with hairpin DNA, the N3 group released and attached to the ATRP initiator through "click reaction". Through eATRP, a large number of FerrocenylMethyl Methacrylate (FcMMA) monomers polymerized into long chains for signal amplification. These long chains had a distinct electrical signal in the square wave voltammetry (SWV), which can detect RNA with high sensitivity. The limit of detection (LOD) goes down to 1.010 fM after ATRP polymerization, which is lower than that of the majority of other ultra-sensitive RNA electrochemical assays. Results also show that the vitamin B12-based electrochemical biosensor is highly selective and suitable for RNA detection in complex biological samples.
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Affiliation(s)
- Yu Zhao
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Jian Zhang
- Nanjing Lishui District Hospital of Traditional Chinese Medicine, Nanjing 211200, PR China; Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China
| | - Nan Ma
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China.
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, PR China
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Xu D, An X, Wang Y, Qian L, Qiu W, Zhang X, Liu G. Ultrasensitive lateral flow biosensor based on PtAu@CNTs nanocomposite catalytic chromogenic signal amplification strategy for the detection of nucleic acid. Anal Chim Acta 2023; 1260:341205. [PMID: 37121654 DOI: 10.1016/j.aca.2023.341205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 05/02/2023]
Abstract
A rapid and ultrasensitive lateral flow biosensor was developed, which based on gold and platinum nanoparticles-decorated carbon nanotubes (PtAu@CNTs) nanocomposite catalytic chromogenic signal amplification strategy for the detection of nucleic acid. Independent platinum and gold nanoparticles modified functional carbon nanotubes (PtAu@CNTs) were prepared by in-situ reduction. Sandwich-type hybridization reaction occurred between PtAu@CNTs-labeled DNA probe, target DNA and Biotin-modified DNA probes, which was captured on test zone of the strip. Accumulation of PtAu@CNTs nano-labels formed a characteristic colored band. After systematic optimization and catalytic chromogen, the naked eye detection limit of PtAu@CNTs-LFA was about 2 pM, and the theoretical detection limit of target DNA is calculated to be 0.43 pM according to the standard curve. The results indicates a rapid, sensitive and specific methods for DNA detection in biological samples, showing great promise for biomedical diagnosis in some malignant diseases in clinical application.
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Affiliation(s)
- Dongqing Xu
- Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
| | - Xue An
- Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
| | - Yuying Wang
- Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
| | - Lisheng Qian
- Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
| | - Wanwei Qiu
- Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China.
| | - Xueji Zhang
- Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China; School of Biomedical Engineering, Shenzhen University Healthy Science Center, Shenzhen, 518060, Guangdong, China.
| | - Guodong Liu
- Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China; Department of Chemistry and Biochemistry, North Dakota State University, Fargo, 58105, ND, USA.
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Hu Y, Yu S, Ma N, Kong J, Zhang X. Rose bengal-mediated photoinduced atom transfer radical polymerization for high sensitivity detection of target DNA. Talanta 2023; 254:124104. [PMID: 36521324 DOI: 10.1016/j.talanta.2022.124104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/08/2022] [Accepted: 11/15/2022] [Indexed: 12/12/2022]
Abstract
Convenient and sensitive detection of biomolecules is of utmost importance in the field of early disease screening. In this study, a Rose Bengal-Mediated photoinduced atom transfer radical polymerization (photoATRP) method was used to achieve highly sensitive detection of target DNA (tDNA). The tDNA was specifically recognized using PNA with terminal modified sulfhydryl groups, and the initiator α-bromophenylacetic acid (BPAA) was attached to the electrode surface via a phosphate-Zr4+-carboxylate acid structure. Under the excitation of blue light, rose bengal (RB) acts as a photocatalyst, β-nicotinamide adenine dinucleotide (NADH) as an electron donor, and ferrocenylmethyl methacrylate (FMMA) as a monomer to activate the photoATRP reaction and generate a large number of electroactive polymer chains on the electrode surface. Under optimal conditions, the method can be used for the quantitative analysis of tDNA in the concentration range of 1-105 fM (R2 = 0.994) with a limit of detection (LOD) of 0.115 fM. This metal-free mediated photoATRP biosensor, with low cost and environmental friendliness, has great potential in the field of highly sensitive biomolecule detection.
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Affiliation(s)
- Yaodong Hu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China
| | - Shuaibing Yu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China
| | - Nan Ma
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China.
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong, 518060, PR China
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Guo X, Wang M, Ma L, Cui Z, Liu Z, Yang H, Liu Y. Carboxyl porphyrin as signal molecule for sensitive fluorescent detection of aflatoxin B 1 via ARGET-ATRP. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 280:121535. [PMID: 35752041 DOI: 10.1016/j.saa.2022.121535] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 06/03/2022] [Accepted: 06/17/2022] [Indexed: 05/27/2023]
Abstract
In this work, a novel fluorescent biosensor for sensitive detecting of aflatoxin B1 (AFB1) was constructed through activators regenerated by electron transfer for atom transfer radical polymerization (ARGET-ATRP) for the first time. The AFB1 antigen was immobilized on the carboxy magnetic beads (MBs) by forming a sandwich-type "aptamer-antigen-antibody" immune system. Then, acrylamid (AM) was introduced through ARGET-ATRP to provide binding sites for the signaling molecules. Finally, carboxy porphyrins (TPP*) were connected with monomers through an amide bond and fixed on the MBs. Under the optimal experimental conditions, the fluorescence intensity and the logarithm of the concentration of AFB1 showed a good relationship from 100 fg mL-1 to 100 ng mL-1, with the limit of detection (LOD) as low as 8.38 fg mL-1. In addition, the method shows good selectivity and excellent reproducibility. More importantly, the biosensor has applied to the quantitative analysis of AFB1 in four Chinese medicines, and this strategy could potentially serve as a novel means for sensitive detecting of AFB1 in complex matrices.
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Affiliation(s)
- Xiaoyu Guo
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, People's Republic of China
| | - Mengli Wang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, People's Republic of China
| | - Lele Ma
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, People's Republic of China
| | - Zhenzhen Cui
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, People's Republic of China
| | - Zenghui Liu
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, People's Republic of China
| | - Huaixia Yang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, People's Republic of China.
| | - Yanju Liu
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, People's Republic of China.
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Dual-signal amplified electrochemical biosensor based on eATRP and PEI for early detection of lung cancer. Bioelectrochemistry 2022; 148:108224. [PMID: 36029762 DOI: 10.1016/j.bioelechem.2022.108224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/22/2022] [Accepted: 08/01/2022] [Indexed: 11/22/2022]
Abstract
Carcinoembryonic antigen (CEA), a lung cancer marker with high sensitivity and specificity, plays vital roles in the early diagnosis of lung cancer. In this paper, an electrochemical biosensor for highly sensitive detection of CEA was constructed, which based on dual signal amplification of electrically mediated atom transfer radical polymerization (eATRP) and polyethyleneimine (PEI) for the first time. Firstly, CEA was captured in a specific recognition manner with CEA aptamer 1 (Apt1), which self-assembled on the electrode via "Au-S" bond. After that, CEA aptamer 2-PEI (Apt2-PEI) was recognized by CEA to form an Apt-antigen-Apt sandwich structure. Next, multiple initiation sites were introduced for the eATRP reaction by the amide reaction. Finally, numerous electroactive monomers, ferrocene methacrylate (FMMA), were grafted onto the modified electrode by eATRP. Under the optimized conditions, there was a wide linear detection range of 10-3 ∼ 102 ng·mL-1, and the limit of detection (LOD) was 70.17 fg·mL-1. Compared to other reported sensors, this electrochemical biosensor used a simpler and more environmentally friendly eATRP, and the use of PEI increased the electron transfer rate. Moreover, the biosensor showed superior analytical performance in the clinical serums and has great promise for early lung cancer diagnosis applications.
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Li Y, Li W, Yang Y, Bao F, Lu J, Miao J, Xu Y. A universal biosensor utilizing bacteria-initiated in situ growth of electroactive polymers for bacteria-related hazards detection. Biosens Bioelectron 2022; 203:114030. [DOI: 10.1016/j.bios.2022.114030] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/18/2022] [Accepted: 01/20/2022] [Indexed: 12/31/2022]
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Lee S, You J, Baek I, Park H, Jang K, Park C, Na S. Synergistic enhanced rolling circle amplification based on mutS and radical polymerization for single-point mutation DNA detection. Biosens Bioelectron 2022; 210:114295. [PMID: 35477153 DOI: 10.1016/j.bios.2022.114295] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 04/12/2022] [Accepted: 04/18/2022] [Indexed: 12/29/2022]
Abstract
The detection of nucleic acids in biofluids is essential for changing the paradigm of disease diagnosis. As there are very few nucleic acids present in human biofluids, a high sensitivity method is required to detect nucleic acids for disease diagnosis. The Kirsten rat sarcoma viral oncogene homolog (KRAS) mutation is associated with non-small cell lung cancer. It is a point mutation and requires a highly selective detection technique. In this study, high sensitivity and selectivity were achieved for the detection of KRAS mutation using rolling circle amplification (RCA), atomic transfer radical polymerization (ATRP), mutS enzyme, and electrochemical sensors. Although RCA can isothermally amplify DNA, it has low selectivity for detecting single-base mismatch DNA, and its sensitivity is not suitable for circulating tumor DNA detection. The selectivity of RCA was improved by using mutS, which can bind specifically to point mutations. In addition, as a method of isothermal radical polymerization, ATRP was used to amplify the weak signal of RCA. Since RCA and ATRP reactions occur simultaneously, detection time was reduced, and the calculated detection limit was 3.09 aM. Computational and experimental analyses were conducted to verify each detection step and the combination of mutS, ATRP, and RCA. The experiment was performed using normal human serum samples for biological application, and the proposed detection method was confirmed to have excellent potential for diagnosing cancer patients.
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Affiliation(s)
- Seonwoo Lee
- Department of Mechanical Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Juneseok You
- Department of Mechanical Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Inchul Baek
- Department of Mechanical Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hyunjun Park
- Department of Mechanical Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Kuewhan Jang
- School of Mechanical Engineering, Hoseo University, Asan, 31499, Republic of Korea
| | - Chanho Park
- Division of Foundry, Samsung Electronics, Hwaseong-si, 18448, Republic of Korea.
| | - Sungsoo Na
- Department of Mechanical Engineering, Korea University, Seoul, 02841, Republic of Korea.
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Li P, Zhang Y, Gong P, Liu Y, Feng W, Yang H. Photoinduced atom transfer radical polymerization combined with click chemistry for highly sensitive detection of tobacco mosaic virus RNA. Talanta 2021; 235:122803. [PMID: 34517661 DOI: 10.1016/j.talanta.2021.122803] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/24/2021] [Accepted: 08/11/2021] [Indexed: 10/20/2022]
Abstract
An electrochemical biosensor for highly sensitive detection of tobacco mosaic virus (TMV) RNA (tRNA) based on click chemistry and photoinduced atom transfer radical polymerization (photoATRP) is developed for the first time. Herein, tRNA is recognized and captured by hairpin DNA immobilized on the gold electrode surface by Au-S self-assembly. Propyl 2-bromoisobutyrate (PBIB), a photoATRP initiator containing an alkyne group, is conjugated to the azide group of hairpin DNA via a Cu(I)-catalyzed azidoalkyl cyclization reaction (CuAAC). Under the irradiation of 470 nm blue light, photoATRP is activated by the photoredox catalyst (eosin Y, EY), resulting in the formation of a large number of electroactive probes (ferrocenylmethyl methacrylate, FMMA), which significantly amplifies the signal. Under the optimal experimental parameters, the strategy has a wide linear detection (0.1 pM-10 nM) (R2 = 0.995) with a limit of detection (LOD) as low as 3.5 fM. In addition, the biosensor also exhibited good selectivity for mismatched bases, excellent stability and reproducibility. Moreover, satisfactory result was achieved when the biosensor was applied to the detection of tRNA from healthy rehmannia total RNA extracts, which demonstrates the great potential of the method in the practical detection of TMV.
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Affiliation(s)
- Peipei Li
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Yaping Zhang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Pengfei Gong
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Yanju Liu
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China.
| | - Weisheng Feng
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China.
| | - Huaixia Yang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China.
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Zhu X, Wang W, Lu J, Hao L, Yang H, Liu Y, Si F, Kong J. Grafting of polymers via ring-opening polymerization for electrochemical assay of alkaline phosphatase activity. Anal Chim Acta 2021; 1185:339069. [PMID: 34711324 DOI: 10.1016/j.aca.2021.339069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/28/2021] [Accepted: 09/14/2021] [Indexed: 01/12/2023]
Abstract
As an important hydrolytic enzyme, abnormal activity of alkaline phosphatase (ALP) is closely associated with a variety of diseases. It has been identified as an important diagnostic indicator for clinical hepatobiliary and bone diseases. Herein, a novel electrochemical sensor based on signal amplification strategy through ring-opening polymerization (ROP) has been developed to assay of ALP activity. First of all, 3-mercaptopropanoic acid (MPA) was employed as a cross-linking agent to attach O-phosphoethanolamine to the electrode surface via amide bond. Then, ALP catalyzed the hydrolysis of phosphate monoester structures to hydroxyl groups, which could initiate ROP reaction. The polymer grafted on the electrode surface contains a large number of ferrocene electroactive molecules, which effectively increased the signal output of the electrochemical sensor and improved the sensitivity of ALP activity detection. Under optimum conditions, this electrochemical sensor rendered a satisfactory linear dependence over the range from 20 to 120 mU mL-1, with a low detection limit of 0.66 mU mL-1. Furthermore, this strategy presented satisfactory selectivity and interference resistance in human serum sample, and compared with clinical data, the relative error of the results obtained by this method was less than 5%. Thus, this method showed considerable potential for the detection of ALP activity in clinical application.
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Affiliation(s)
- Xin Zhu
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Wenbin Wang
- Henan Key Laboratory of TCM Syndrome and Prescription in Signaling, Henan International Joint Laboratory of TCM Syndrome and Prescription in Signaling, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Jing Lu
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Lulu Hao
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Huaixia Yang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China
| | - Yanju Liu
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China.
| | - Fuchun Si
- Henan Key Laboratory of TCM Syndrome and Prescription in Signaling, Henan International Joint Laboratory of TCM Syndrome and Prescription in Signaling, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, PR China.
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China.
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Liu Q, Xie H, Liu J, Kong J, Zhang X. A novel electrochemical biosensor for lung cancer-related gene detection based on copper ferrite-enhanced photoinitiated chain-growth amplification. Anal Chim Acta 2021; 1179:338843. [PMID: 34535265 DOI: 10.1016/j.aca.2021.338843] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 06/21/2021] [Accepted: 06/27/2021] [Indexed: 10/20/2022]
Abstract
We reported an electrochemical biosensor via CuFe2O4-enhanced photoinitiated chain-growth polymerization for ultrasensitive detection of lung cancer-related gene. In this work, photoinitiated atom transfer radical polymerization (ATRP) was applied to amplify the electrochemical signal corresponding to lung cancer-related gene, and polymerization was triggered off under the illumination of blue light which was involved in copper-mediated reductive quenching cycle. At the same time, CuFe2O4-H2O2 system was also activated to enhance polymerization based on the photocatalysis of CuFe2O4, which was based on the reaction between •OH and methacrylic monomers to generate carbon-based radicals. Numerous ferrocene-based polymer was graft onto electrode surface through this amplification stages. The limit of detection was low to 1.98 aM (in 10 μL, ∼11.9 molecules) (R2 = 0.998) with a wide linear range from 0.1 fM to 10 pM. This strategy made a good trade-off between cost-effectiveness and sensitivity, and it also presented a high selectivity and anti-interference. In addition, the operation was greatly simplified and detection time was also shortened, which endowed this electrochemical DNA biosensor great application potential.
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Affiliation(s)
- Qianrui Liu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China
| | - Huifang Xie
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China
| | - Jingliang Liu
- School of Environmental Science, Nanjing XiaoZhuang University, Nanjing, Jiangsu, 211171, PR China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China.
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong, 518060, PR China
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Sun H, Kong J, Zhang X. Application of peptide nucleic acid in electrochemical nucleic acid biosensors. Biopolymers 2021; 112:e23464. [PMID: 34214202 DOI: 10.1002/bip.23464] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 01/06/2023]
Abstract
The early diagnosis of major diseases, such as malignant tumors, has always been an important field of research. Through screening, early detection of such diseases, and timely and effective treatment can significantly improve the survival rate of patients and reduce medical costs. Therefore, the development of a simple detection method with high sensitivity and strong specificity, and that is low cost is of great significance for the diagnosis and prognosis of the disease. Electrochemical DNA biosensing analysis is a technology based on Watson Crick base complementary pairing, which uses the capture probe of a known sequence to specifically recognize the target DNA and detect its concentration. Because of its advantages of low cost, simple operation, portability, and easy miniaturization, it has been widely researched and has become a cutting-edge topic in the field of biochemical analysis and precision medicine. However, the existing methods for electrochemical DNA biosensing analysis have some shortcomings, such as poor stability and specificity of capture probes, insufficient detection sensitivity, and long detection cycles. In this review, we focus on improving the sensitivity and practicability of electrochemical DNA biosensing analysis methods and summarize a series of research work carried out by using electrically neutral peptide nucleic acid as an immobilized capture probe.
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Affiliation(s)
- Haobo Sun
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, China.,School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
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Electrochemiluminescence immunosensor for cytokeratin fragment antigen 21-1 detection using electrochemically mediated atom transfer radical polymerization. Mikrochim Acta 2021; 188:115. [PMID: 33686530 PMCID: PMC7940335 DOI: 10.1007/s00604-020-04677-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 11/30/2020] [Indexed: 12/14/2022]
Abstract
The cytokeratin fragment antigen 21-1 (CYFRA 21-1) protein is a critical tumor biomarker tightly related to non-small cell lung cancer (NSCLC). Herein, we prepared an effective electrochemiluminescence (ECL) immunosensor for CYFRA 21-1 detection using electrochemically mediated atom transfer radical polymerization (eATRP). The CYFRA 21-1 antigen was fixed on the electrode surface by constructing a sandwich type antibody-antigen-antibody immune system. The sensitivity of ECL was improved by using the eATRP reaction. In this method, eATRP was applied to CYFRA 21-1 detection antibody with N-acryloyloxysuccinimide as functional monomer. This is the first time that ECL and eATRP signal amplification technology had been combined. Under the optimized testing conditions, the immunosensor showed a good linear relation in the range from 1 fg mL−1 to 1 μg mL−1 at a limit of detection of 0.8 fg mL−1 (equivalent to ~ 134 molecules in a 10 μL sample). The ECL immunosensing system based on eATRP signal amplification technology provided a new way for rapid diagnosis of lung cancer by detecting CYFRA 21-1. The paper prepared an electrochemiluminescence biosensor for ultrasensitive detection of CYFRA 21-1 via eATRP signal amplification strategy, which had the advantages of high sensitivity, reproducibility, and held potential prospect for analysis of low-abundance. ![]()
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14
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Li Y, Men X, Gao G, Tian Y, Wen Y, Zhang X. A distance-based capillary biosensor using wettability alteration. LAB ON A CHIP 2021; 21:719-724. [PMID: 33475116 DOI: 10.1039/d0lc01147a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Distance-based detection methods with a quantitative readout are of great significance to point-of-care testing (POCT), are low-cost and user-friendly, and can be integrated into portable analytical devices. Here, we submit a visual quantitative distance-based sensor by capillary force alteration in a capillary tube. This sensor converts the wettability alteration caused by the target molecules into a capillary rise height signal. Moreover, the sensor profits from isothermal amplification technology, achieving the detection of miRNAs with high sensitivity and specificity by visually reading the height of the water in the capillary tube. The proposed biosensor shows great potential in routine clinical diagnosis as well as POCT in resource-limited settings.
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Affiliation(s)
- Yansheng Li
- Beijing Key Laboratory for Sensors, Beijing Information Science & Technology University, Beijing 100192, P.R. China.
| | - Xiujin Men
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, P.R. China.
| | - Guowei Gao
- Beijing Key Laboratory for Sensors, Beijing Information Science & Technology University, Beijing 100192, P.R. China.
| | - Ye Tian
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Yongqiang Wen
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, P.R. China.
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, P.R. China.
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15
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Wang C, Liu J, Kong J, Zhang X. Nitronyl nitroxide monoradical TEMPO as new electrochemical label for ultrasensitive detection of nucleic acids. Anal Chim Acta 2020; 1136:19-24. [PMID: 33081944 DOI: 10.1016/j.aca.2020.08.035] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 01/27/2023]
Abstract
In this work, a novel electrochemical biosensor based on nitronyl nitroxide monoradical 2,2,6,6-tetramethylpiperidine 1-Oxyl (TEMPO) as new electrochemical label for facile nucleic acids detection is developed. This fast and convenient functional microelectrode was designed by fixing the capture probe peptide nucleic acid (PNA) and using the coordination interaction of Zr4+ with both phosphate groups and carboxyl groups. Differential pulse voltammetry (DPV) was used to study the oxidation current of TEMPO which was combined with the electrode surface and labeled. TEMPO electrochemical signal related to target deoxyribonucleic acid (tDNA) concentration was finally detected when tDNA was added on the surface of glassy carbon electrode (GCE). The detection principle, optimization of key factors and performance analysis of the biosensor are also discussed. A great linear relation is acquired within the scope of 10 pM-100 nM under optimal conditions and the detection limit of this experiment is calculated as low as 2.57 pM (R2 = 0.996). In addition, complex serum samples were used to explore the practical application of this experiment. The results show the developed electrochemical DNA biosensor has wide application prospects in nucleic acids detection and clinical analysis.
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Affiliation(s)
- Chen Wang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China
| | - Jingliang Liu
- School of Environmental Science, Nanjing XiaoZhuang University, Nanjing, 211171, PR China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, PR China.
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, 518060, PR China
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16
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Hu K, Cheng J, Li J, Ye S, Yang H, Liu Y, Kong J. Perfluorosulfonic acid polymer based eATRP for ultrasensitive detection of CYFRA21-1 DNA. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:2827-2834. [PMID: 32930205 DOI: 10.1039/d0ay00328j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The sensitive detection of biomarker cytokeratin fragment antigen 21-1 (CYFRA21-1) is crucial for early diagnosis and screening of non-small cell lung cancer (NSCLC). In this work, an electrochemical biosensor based on Nafion-initiated eATRP has been built for ultrasensitive detection of CYFRA21-1 DNA for the first time. Specifically, peptide nucleic acid (PNA) probes are immobilized onto a gold electrode surface and then hybridized with target DNA to form PNA/DNA heteroduplexes for the subsequent attachment of Nafion by the identified carboxyl-Zr4+-phosphoric acid chemistry. Finally, polymer chains are obtained by linking the monomer of ferrocenylmethyl methacrylate to the PNA/MCH/DNA/Zr4+/Nafion probes via eATRP. Under optimized steady-state conditions, the sensor offers a wide current response for CYFRA21-1 DNA from 10-11 to 10-16 M with a detection limit of 6.42 × 10-17 M. The proposed method of using Nafion as the eATRP initiator exhibits high sensitivity, reproducibility and stability and is a promising strategy for early diagnosis of NSCLC.
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Affiliation(s)
- Kai Hu
- Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China.
| | - Jiamin Cheng
- Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China.
| | - Jinge Li
- Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China.
| | - Shan Ye
- Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China.
| | - Huaixia Yang
- Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China.
| | - Yanju Liu
- Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China.
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
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17
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Wang X, Niu S, Wei M, Liu S, Liu R, Shi C, Ma C. Ultrasensitive electrochemical DNA biosensor based on a tetrahedral structure and proximity-dependent surface hybridization. Analyst 2020; 145:150-156. [PMID: 31720590 DOI: 10.1039/c9an01897b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The DNA tetrahedron has developed a broad spectrum of applications in biosensor construction thanks to its excellent mechanical rigidity and structural stability. However, how to construct a highly sensitive biosensor using a DNA tetrahedron is still a challenge. In this work, an ultrasensitive electrochemical biosensor based on a DNA tetrahedral nanostructure was developed with the help of synergy from proximity-dependent hybridization. To decrease the steric hindrance of DNA tetrahedra to proximity-dependent hybridization, the detection signal was set on the inclined side chain structure of a DNA tetrahedral sensing system. Additionally, when the target hybridized with the DNA probe, the ferrocene (Fc) labeled on the end of the DNA probe was driven close to the surface of the biosensor, providing a sensitive faradaic current. The experimental results exhibited a good linear relationship from 1 fM to 10 pM with a linear correlation coefficient of 0.9977, and a high sensitivity with a detection limit of 0.2 fM. Our DNA biosensor also showed good stability according to electrode characterization and target detection at different time scales and the anti-jamming capabilities in a complicated biological extraction environment were excellent. The electrochemical sensing system established here has greatly improved the detection sensitivity of a DNA biosensor based on a DNA tetrahedron, which will further promote its practical applications.
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Affiliation(s)
- Xuejiao Wang
- Shandong Provincial Key Laboratory of Biochemical Engineering, Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
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18
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Sun H, Qiu Y, Lu Y, Kong J, Zhang X. Ultrasensitive DNA electrochemical biosensor based on MnTBAP biomimetic catalyzed AGET ATRP signal amplification reaction. Chem Commun (Camb) 2020; 56:6636-6639. [DOI: 10.1039/d0cc02176h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this paper, an ultrasensitive, highly selective and green electrochemical biosensor for quantifying DNA sequences (aM DNA) based on a MnTBAP catalyst for AGET ATRP reaction is proposed.
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Affiliation(s)
- Haobo Sun
- Research Center for Biomedical and Health Science
- Anhui Science and Technology University
- Fengyang 233100
- P. R. China
- School of Environmental and Biological Engineering
| | - Yunliang Qiu
- Department of Criminal Science and Technology
- Nanjing Forest Police College
- Nanjing 210023
- P. R. China
| | - Yajie Lu
- Research Center for Biomedical and Health Science
- Anhui Science and Technology University
- Fengyang 233100
- P. R. China
| | - Jinming Kong
- School of Environmental and Biological Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- P. R. China
| | - Xueji Zhang
- School of Biomedical Engineering
- Shenzhen University Health Science Center
- Shenzhen
- P. R. China
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19
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Liu B, Sun H, Li L, Zhang J, Kong J, Zhang X. A dual signal amplification strategy combining thermally initiated SI-RAFT polymerization and DNA-templated silver nanoparticles for electrochemical determination of DNA. Mikrochim Acta 2019; 187:35. [PMID: 31820104 DOI: 10.1007/s00604-019-3912-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 10/11/2019] [Indexed: 10/25/2022]
Abstract
A highly sensitive method is described for determination of DNA. It is based on dual signal amplification, viz. (a)DNA-templated metal deposition, and (b) thermally initiated surface-initiated reversible addition-fragmentation chain transfer (SI-RAFT) polymerization. A peptide nucleic acid (PNA) with a terminal thiol group was grasped onto a gold electrode by self-assembly. The modified electrode serves as a probe to selectively capture target DNA (tDNA). In the next step, Zr(IV) ions are bound to the phosphate groups of the tDNA. A chain-transfer agent (CTA) for thermally initiated SI-RAFT polymerization, 4-cyano-4-(phenylcarbonothioylthio)pentanoic acid (CPAD), was immobilized on tDNA by conjugation of the carboxy group to Zr(IV) ions. Subsequently, numerous monomers of glycosyloxyethyl methacrylate (GEMA) were connected to the CPAD by thermally initiated SI-RAFT polymerization with azobisisobutyronitrile (AIBN) serving as the free-radical thermal initiator. Afterwards, hydroxyl groups of the GEMA were oxidized to aldehyde groups reacting with sodium periodate, and silver nanoparticles were further introduced on the surface of electrode via "silver mirror reaction". This results in a large electrochemical signal amplification. Under optimized conditions, the electrochemical signal (best measured at a working potential of 0 V vs. SCE (KCl; 3 M)) increases linearly with the logarithm of tDNA concentration in the 10 to 106 aM concentration range. The detection limit is as low as 5.6 aM (~34 molecules in a 10 μL sample). This is lower by factors between 2 and 1800 times than detection limits of most other ultra-sensitive electrochemical DNA assays. Graphical abstractSchematic representation of a dual signal amplification strategy combining thermally initiated surface-initiated reversible addition-fragmentation chain transfer polymerization (SI-RAFT) and DNA-templated silver nanoparticles for electrochemical determination of DNA.
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Affiliation(s)
- Bang Liu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, People's Republic of China
- Laboratory of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, No.100, Shizi Street, Hongshan Road, Qixia District, Nanjing, 210028, Jiangsu Province, People's Republic of China
| | - Haobo Sun
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, People's Republic of China
| | - Lianzhi Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Jian Zhang
- Laboratory of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, No.100, Shizi Street, Hongshan Road, Qixia District, Nanjing, 210028, Jiangsu Province, People's Republic of China.
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, People's Republic of China.
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong, 518060, People's Republic of China
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20
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Guo Z, Tang J, Li M, Liu Y, Yang H, Kong J. An ultrasensitive fluorescent aptasensor based on truncated aptamer and AGET ATRP for the detection of bisphenol A. Anal Bioanal Chem 2019; 411:7807-7815. [PMID: 31745613 DOI: 10.1007/s00216-019-02179-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/13/2019] [Accepted: 09/30/2019] [Indexed: 12/12/2022]
Abstract
Given the gigantic harmfulness of bisphenol A (BPA), a novel and ultrasensitive aptasensor, which employs the truncated BPA aptamer, click chemistry, and activators generated by electron transfer for atom transfer radical polymerization (AGET ATRP), was developed herein for the quantitative determination of BPA. Firstly, hairpin DNAs (hairpins) with a thiol at the 5' end and an azide group at the 3' end were conjugated with aminated magnetic beads (MBs) through heterobifunctional cross-linkers. BPA truncated aptamer (ssDNA-A) hybridizes with its complementary single-stranded DNA (ssDNA-B) to form double-stranded DNA. In the presence of BPA, ssDNA-A specifically captures BPA, and then ssDNA-B is released. Subsequently, the ssDNA-B hybridizes with hairpins to expose the azide group near the surface of the MBs. Then, propargyl-2-bromoisobutyrate (PBIB), the initiator of AGET ATRP containing alkynyl group, was conjugated with azide group of hairpins via the Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC). Consequently, a large number of fluorescein-o-acrylate (FA) were introduced to the MBs through AGET ATRP, resulting in that the fluorescence intensity was increased dramatically. Obviously, the fluorescence intensity was especially sensitive to the change of BPA concentration, and this method can be used in quantitative determination of BPA. Under optimal conditions, a broad liner range from 100 fM to 100 nM and a low limit of detection (LOD) of 6.6 fM were obtained. Moreover, the method exhibits not only excellent specificity for BPA detection over BPA analogues but high anti-interference ability in real water sample detection, indicating that it has huge application prospect in food safety and environment monitoring.
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Affiliation(s)
- Zhuangzhuang Guo
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan, China
| | - Jinfa Tang
- The First Affilicated Hospital of Henan University of Chinese Medicine, Zhengzhou, 450099, Henan, China
| | - Manman Li
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan, China
| | - Yanju Liu
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan, China.
| | - Huaixia Yang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan, China.
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu, China.
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21
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Baker SL, Kaupbayeva B, Lathwal S, Das SR, Russell AJ, Matyjaszewski K. Atom Transfer Radical Polymerization for Biorelated Hybrid Materials. Biomacromolecules 2019; 20:4272-4298. [PMID: 31738532 DOI: 10.1021/acs.biomac.9b01271] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Proteins, nucleic acids, lipid vesicles, and carbohydrates are the major classes of biomacromolecules that function to sustain life. Biology also uses post-translation modification to increase the diversity and functionality of these materials, which has inspired attaching various other types of polymers to biomacromolecules. These polymers can be naturally (carbohydrates and biomimetic polymers) or synthetically derived and have unique properties with tunable architectures. Polymers are either grafted-to or grown-from the biomacromolecule's surface, and characteristics including polymer molar mass, grafting density, and degree of branching can be controlled by changing reaction stoichiometries. The resultant conjugated products display a chimerism of properties such as polymer-induced enhancement in stability with maintained bioactivity, and while polymers are most often conjugated to proteins, they are starting to be attached to nucleic acids and lipid membranes (cells) as well. The fundamental studies with protein-polymer conjugates have improved our synthetic approaches, characterization techniques, and understanding of structure-function relationships that will lay the groundwork for creating new conjugated biomacromolecular products which could lead to breakthroughs in genetic and tissue engineering.
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Affiliation(s)
- Stefanie L Baker
- Department of Biomedical Engineering , Carnegie Mellon University , Scott Hall 4N201, 5000 Forbes Avenue , Pittsburgh , Pennsylvania 15213 , United States.,Center for Polymer-Based Protein Engineering , Carnegie Mellon University , 5000 Forbes Avenue , Pittsburgh , Pennsylvania 15213 , United States
| | - Bibifatima Kaupbayeva
- Center for Polymer-Based Protein Engineering , Carnegie Mellon University , 5000 Forbes Avenue , Pittsburgh , Pennsylvania 15213 , United States.,Department of Biological Sciences , Carnegie Mellon University , 4400 Fifth Avenue , Pittsburgh , Pennsylvania 15213 , United States
| | - Sushil Lathwal
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Avenue , Pittsburgh , Pennsylvania 15213 , United States
| | - Subha R Das
- Department of Chemistry , Carnegie Mellon University , 4400 Fifth Avenue , Pittsburgh , Pennsylvania 15213 , United States
| | - Alan J Russell
- Department of Biomedical Engineering , Carnegie Mellon University , Scott Hall 4N201, 5000 Forbes Avenue , Pittsburgh , Pennsylvania 15213 , United States.,Center for Polymer-Based Protein Engineering , Carnegie Mellon University , 5000 Forbes Avenue , Pittsburgh , Pennsylvania 15213 , United States.,Department of Biological Sciences , Carnegie Mellon University , 4400 Fifth Avenue , Pittsburgh , Pennsylvania 15213 , United States.,Department of Chemistry , Carnegie Mellon University , 4400 Fifth Avenue , Pittsburgh , Pennsylvania 15213 , United States.,Department of Chemical Engineering , Carnegie Mellon University , 5000 Forbes Avenue , Pittsburgh , Pennsylvania 15213 , United States
| | - Krzysztof Matyjaszewski
- Center for Polymer-Based Protein Engineering , Carnegie Mellon University , 5000 Forbes Avenue , Pittsburgh , Pennsylvania 15213 , United States.,Department of Chemistry , Carnegie Mellon University , 4400 Fifth Avenue , Pittsburgh , Pennsylvania 15213 , United States.,Department of Chemical Engineering , Carnegie Mellon University , 5000 Forbes Avenue , Pittsburgh , Pennsylvania 15213 , United States
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22
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Wu T, Lankshear ER, Downard AJ. Simultaneous Electro‐Click and Electrochemically Mediated Polymerization Reactions for One‐Pot Grafting from a Controlled Density of Anchor Sites. ChemElectroChem 2019. [DOI: 10.1002/celc.201901395] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ting Wu
- School of Physical and Chemical SciencesUniversity of Canterbury Christchurch 8140 New Zealand
| | - Ethan R. Lankshear
- School of Physical and Chemical SciencesUniversity of Canterbury Christchurch 8140 New Zealand
| | - Alison J. Downard
- School of Physical and Chemical SciencesUniversity of Canterbury Christchurch 8140 New Zealand
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23
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Li M, Guo Z, Zheng X, Yang H, Feng W, Kong J. An electrochemical aptasensor based on eATRP amplification for the detection of bisphenol A. Analyst 2019; 144:5691-5699. [PMID: 31508622 DOI: 10.1039/c9an01266d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Herein, a novel aptasensor was constructed for ultrasensitive detection of bisphenol A (BPA). In this method, an electrochemically mediated atom transfer radical polymerization (eATRP) signal amplification strategy was applied to BPA detection for the first time. The 5'-end modified sulfhydryl group and the 3'-end modified azide group hairpin DNA were immobilized on a gold electrode through an Au-S bond. The double-stranded DNA was formed by the hybridization of an aptamer and a single-stranded DNA partially paired with the hairpin DNA. In the presence of BPA, the aptamer combined with BPA and the single-stranded DNA was released to open the hairpin structure, making the azide groups at the 3' end exposed. Subsequently the initiator of eATRP was introduced into hairpin DNA through click chemistry reaction and eATRP was conducted for the polymerization of the electroactive probe ferrocene methyl methacrylate (FMMA). As a result, the ultrasensitive detection of BPA was realized, and the detection limit of this aptasensor was as low as 59 aM and a good selectivity was obtained in the presence of 100-fold structural analogs. The application of this aptasensor was evaluated by detecting BPA in pure water samples, and recoveries were in the range of 95.23-98.40%, holding promising applications in biological analysis.
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Affiliation(s)
- Manman Li
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China.
| | - Zhuangzhuang Guo
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China.
| | - Xiaoke Zheng
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China.
| | - Huaixia Yang
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China.
| | - Weisheng Feng
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China.
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
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24
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Sun H, Kong J, Wang Q, Liu Q, Zhang X. Dual Signal Amplification by eATRP and DNA-Templated Silver Nanoparticles for Ultrasensitive Electrochemical Detection of Nucleic Acids. ACS APPLIED MATERIALS & INTERFACES 2019; 11:27568-27573. [PMID: 31313584 DOI: 10.1021/acsami.9b08037] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Herein, an ultrasensitive and novel platform for DNA detection is reported, which combines DNA-templated silver nanoparticles (AgNPs) with electrochemical atom transfer radical polymerization signal amplification. Peptide nucleic acid (PNA) functionalized with thiol was modified to the Au electrode surface as a probe to specifically capture target DNA (T-DNA). After Zr4+ binds to phosphate on DNA, the initiator [α-bromophenylacetic acid (BPAA)] of ATRP is attached to PNA/DNA heteroduplexes based on the phosphate groups of T-DNA and carboxylate groups of BPAA via zirconium-phosphate-carboxylate chemistries. A large number of glyco-syloxyethyl methacrylates (GEMA) were captured on the formed PNA/DNA duplex via ATRP. Afterwards, the polysaccharides were oxidized to polymerized aldehydes with sodium periodate (NaIO4). In addition, AgNPs were deposited on the electrode surface by silver mirror reaction. The results indicate that the amount of AgNPs proportional to the T-DNA was quantified through differential pulse voltammetry. Furthermore, it proves that the modified electrode has good performance in DNA detection, indicating that the DNA sensor has high selectivity, high sensitivity, and stable repeatability. Under the optimal conditions, a good linear relationship is obtained in the range of 10 aM to 10 pM with the correlation coefficient of 0.992, and the detection limit is calculated to be as low as 4.725 aM. In addition, the sensor is successfully used to detect DNA in actual serum samples with satisfactory results, which indicates huge promise for detecting gene biomarkers and clinical analysis.
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Affiliation(s)
- Haobo Sun
- School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Jinming Kong
- School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Qiangwei Wang
- School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Qianrui Liu
- School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Xueji Zhang
- School of Biomedical Engineering , Shenzhen University Health Science Center , Shenzhen , Guangdong 518060 , P. R. China
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25
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Sun H, Xu W, Liu B, Liu Q, Wang Q, Li L, Kong J, Zhang X. Ultrasensitive Detection of DNA via SI-eRAFT and in Situ Metalization Dual-Signal Amplification. Anal Chem 2019; 91:9198-9205. [PMID: 31192582 DOI: 10.1021/acs.analchem.9b01961] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this work, we report a new amplification strategy based on electrochemically mediated reversible addition-fragmentation chain transfer (eRAFT) and in situ metalization for electrochemical detection of DNA. First, peptide nucleic acid (PNA) probes were immobilized on the surface of the gold electrode, and when they hybridized with the target DNA, the chain transfer agent (CTA), 4-cyano-4-(phenylcarbonothioylthio)pentanoic acid (CPAD), of RAFT was connected to the PNA/DNA heteroduplex formed by the coordination bonding of Zr4+. Then glycosyloxyethyl methacrylates (GEMA) were assembled on the surface of the electrode by electrochemically mediated surface-initiated reversible addition-fragmentation chain transfer (SI-eRAFT) to form a polymer-containing sugar glucose. Next, the o-hydroxyl groups on the polysaccharide molecular skeleton were oxidized to aldehyde groups by sodium periodate (NaIO4). The aldehyde groups generated then reduce silver ions to silver particles deposited on the electrode surface in situ, and this system was then subjected to differential pulse voltammetry (DPV). Under optimal conditions, the intensity of the stripping current and the logarithm of the target DNA (tDNA) concentration has a good linear relationship in the range of 10 aM to 1 pM (R2 = 0.996), and the detection limit can go down to 5.4 aM (S/N = 3). Moreover, the method is suitable for single-nucleotide polymorphism (SNP) analysis and has strong anti-interference ability for the analysis of target ssDNA in serum samples.
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Affiliation(s)
- Haobo Sun
- School of Chemistry and Chemical Engineering , Liaocheng University , Liaocheng 252059 , People's Republic of China.,School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , People's Republic of China
| | - Wen Xu
- School of Chemistry and Chemical Engineering , Huangshan University , Huangshan 245041 , People's Republic of China
| | - Bang Liu
- School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , People's Republic of China
| | - Qianrui Liu
- School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , People's Republic of China
| | - Qiangwei Wang
- School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , People's Republic of China
| | - Lianzhi Li
- School of Chemistry and Chemical Engineering , Liaocheng University , Liaocheng 252059 , People's Republic of China
| | - Jinming Kong
- School of Environmental and Biological Engineering , Nanjing University of Science and Technology , Nanjing 210094 , People's Republic of China
| | - Xueji Zhang
- School of Biomedical Engineering , Shenzhen University Health Science Center , Shenzhen , Guangdong 518060 , People's Republic of China
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