1
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Sheng X, Li X, Jia Y, Chen P, Liu Y, Ru G, Xu M, Liu L, Zhu X, Jin X, Liu Y, Zhao H, Li H. Electrochemical Biosensor for Protein Concentration Monitoring Using Natural Wood Evaporation for Power Generation. Anal Chem 2024; 96:917-925. [PMID: 38171538 DOI: 10.1021/acs.analchem.3c05041] [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: 01/05/2024]
Abstract
A high-sensitivity, low-cost, self-powered biomass electrochemical biosensor based on the "evaporating potential" theory is developed for protein detection. The feasibility of experimental evaluation methods was verified with a probe protein of bovine serum albumin. The sensor was then used to detect lung cancer marker CYFRA21-1, and the potential of our sensor for clinical diagnosis was demonstrated by serum analysis. This work innovatively exploits the osmotic power generation capability of natural wood to construct a promising electrochemical biosensor that was driven by kinetics during testing. The detection methods used for this sensor, chronoamperometry and AC impedance, showed potential for quantitative analysis and specific detection, respectively. Furthermore, the sensor could facilitate new insights into the development of high-sensitivity, low-cost, and easy-to-use electrochemical biosensors.
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Affiliation(s)
- Xia Sheng
- College of Science, Henan Agricultural University, Nongye Road 63, Zhengzhou 450002, China
| | - Xu Li
- College of Science, Henan Agricultural University, Nongye Road 63, Zhengzhou 450002, China
- Longzihu New Energy Laboratory, Zhengzhou Institute of Emerging Industrial Technology, Henan University, Zhengzhou 450000, China
- Henan Key Laboratory of Energy Storage Materials and Processes, Zhengzhou Institute of Emerging Industrial Technology, Zhengzhou 450003, China
| | - Yanfang Jia
- Department of Clinical Laboratory, People's Hospital of Henan University of Chinese Medicine, No. 33, Huanghe Road, Zhengzhou 450053, Henan, China
| | - Pengxun Chen
- Department of Clinical Laboratory, People's Hospital of Henan University of Chinese Medicine, No. 33, Huanghe Road, Zhengzhou 450053, Henan, China
| | - Yawei Liu
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Guangxin Ru
- College of Forestry, Henan Agricultural University, Nongye Road 63, Zhengzhou 450002, China
| | - Mengyi Xu
- College of Science, Henan Agricultural University, Nongye Road 63, Zhengzhou 450002, China
| | - Lijie Liu
- College of Science, Henan Agricultural University, Nongye Road 63, Zhengzhou 450002, China
| | - Xiuhong Zhu
- College of Forestry, Henan Agricultural University, Nongye Road 63, Zhengzhou 450002, China
| | - Xianchun Jin
- College of Science, Henan Agricultural University, Nongye Road 63, Zhengzhou 450002, China
| | - Yanyan Liu
- College of Science, Henan Agricultural University, Nongye Road 63, Zhengzhou 450002, China
| | - Hailiang Zhao
- College of Science, Henan Agricultural University, Nongye Road 63, Zhengzhou 450002, China
- School of Environmental Engineering, Henan University of Technology, Lianhua Street 100, Zhengzhou 450001, China
| | - Hongjuan Li
- Department of Clinical Laboratory, People's Hospital of Henan University of Chinese Medicine, No. 33, Huanghe Road, Zhengzhou 450053, Henan, China
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2
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Shen C, Huang Z, Chen X, Wang Z, Zhou J, Wang Z, Liu D, Li C, Zhao T, Zhang Y, Xu S, Zhou W, Peng W. Rapid ultra-sensitive nucleic acid detection using plasmonic fiber-optic spectral combs and gold nanoparticle-tagged targets. Biosens Bioelectron 2023; 242:115719. [PMID: 37797532 DOI: 10.1016/j.bios.2023.115719] [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: 02/19/2023] [Revised: 08/24/2023] [Accepted: 09/28/2023] [Indexed: 10/07/2023]
Abstract
Nucleic acid (NA) is a widely-used biomarker for viruses. Accurate quantification of NA can provide a reliable basis for point-of-care diagnosis and treatment. Here, we propose a tilted fiber Bragg grating (TFBG)-based plasmonic fiber-optic spectral comb for fast response and ultralow limit NA detection. The TFBG is coated with a gold film which enables excitation of surface plasmon resonance (SPR), and single-stranded probe NAs with known base sequences are assembled on the gold film. To enhance sensitivity of refractive index (RI) for sensing a chosen combination of probe and target NAs around the TFBG surface, gold nanoparticles (AuNPs) are bonded to the target NA molecules as "RI-labels". The NA combination-induced aggregation of AuNPs induces significant spectral responses in the TFBG that would be below the detection threshold for the NAs in the absence of the AuNPs. The proposed TFBG-SPR NA sensor shows a fast response time of 30 s and an ultra-wide NA detection range from 1 × 10-18 mol/L to 1 × 10-7 mol/L. In the NA concentration range of 1 × 10-12 mol/L (1 pM) to 105 pM, an ultra-high sensitivity of 1.534 dB/lg(pM) is obtained. The sensor achieves an ultra-low limit of detection down to 1.0 × 10-18 mol/L (1 aM), which is more than an order of magnitude lower than the previous reports. The proposed sensor not only shows potentials in practical applications of NA detection, but also provides a new way for TFBG-SPR biochemical sensors to achieve higher RI sensitivity.
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Affiliation(s)
- Changyu Shen
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang, 310018, China.
| | - Zhenlin Huang
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang, 310018, China
| | - Xiaoman Chen
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang, 310018, China
| | - Zhihao Wang
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang, 310018, China
| | - Jun Zhou
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang, 310018, China
| | - Zhaokun Wang
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang, 310018, China
| | - Dejun Liu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education/Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Chenxia Li
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang, 310018, China
| | - Tianqi Zhao
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang, 310018, China
| | - Yang Zhang
- School of Physics, Dalian University of Technology, Dalian, Liaoning, 116024, China
| | - Shiqing Xu
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang, 310018, China
| | - Wenjun Zhou
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang, 310018, China
| | - Wei Peng
- School of Physics, Dalian University of Technology, Dalian, Liaoning, 116024, China
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3
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Tran VV, Tran NHT, Hwang HS, Chang M. Development strategies of conducting polymer-based electrochemical biosensors for virus biomarkers: Potential for rapid COVID-19 detection. Biosens Bioelectron 2021; 182:113192. [PMID: 33819902 PMCID: PMC7992312 DOI: 10.1016/j.bios.2021.113192] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/16/2021] [Accepted: 03/18/2021] [Indexed: 12/24/2022]
Abstract
Rapid, accurate, portable, and large-scale diagnostic technologies for the detection of severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) are crucial for controlling the coronavirus disease (COVID-19). The current standard technologies, i.e., reverse-transcription polymerase chain reaction, serological assays, and computed tomography (CT) exhibit practical limitations and challenges in case of massive and rapid testing. Biosensors, particularly electrochemical conducting polymer (CP)-based biosensors, are considered as potential alternatives owing to their large advantages such as high selectivity and sensitivity, rapid detection, low cost, simplicity, flexibility, long self-life, and ease of use. Therefore, CP-based biosensors can serve as multisensors, mobile biosensors, and wearable biosensors, facilitating the development of point-of-care (POC) systems and home-use biosensors for COVID-19 detection. However, the application of these biosensors for COVID-19 entails several challenges related to their degradation, low crystallinity, charge transport properties, and weak interaction with biomarkers. To overcome these problems, this study provides scientific evidence for the potential applications of CP-based electrochemical biosensors in COVID-19 detection based on their applications for the detection of various biomarkers such as DNA/RNA, proteins, whole viruses, and antigens. We then propose promising strategies for the development of CP-based electrochemical biosensors for COVID-19 detection.
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Affiliation(s)
- Vinh Van Tran
- Alan G. MacDiarmid Energy Research Institute, Chonnam National University, Gwangju 61186, South Korea
| | - Nhu Hoa Thi Tran
- Faculty of Materials Science and Technology, University of Science, HoChiMinh City 700000, Viet Nam; Vietnam National University, HoChiMinh City 700000, Viet Nam
| | - Hye Suk Hwang
- Alan G. MacDiarmid Energy Research Institute, Chonnam National University, Gwangju 61186, South Korea.
| | - Mincheol Chang
- Alan G. MacDiarmid Energy Research Institute, Chonnam National University, Gwangju 61186, South Korea; Department of Polymer Engineering, Graduate School, Chonnam National University, Gwangju 61186, South Korea; School of Polymer Science and Engineering, Chonnam National University, Gwangju 61186, South Korea.
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4
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Chen J, Zhou B, Li Y, Zheng L, Guo H, Yang F. A “turn-on” fluorescent sensor for cytosine in aqueous media based on diamino-bridged biphenyl acrylonitrile. NEW J CHEM 2021. [DOI: 10.1039/d0nj05098a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A “turn-on” fluorescent sensor for cytosine in aqueous media was prepared.
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Affiliation(s)
- Jiaojiao Chen
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
- Fujian Key Laboratory of Polymer Materials
| | - Bangyi Zhou
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering
| | - Yongsheng Li
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
| | - Linlu Zheng
- Fujian Provincial Key Laboratory of Featured Biochemical and Chemical Materials
- Ningde Normal University
- Ningde 352106
- P. R. China
| | - Hongyu Guo
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
- Fujian Key Laboratory of Polymer Materials
| | - Fafu Yang
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
- Fujian Key Laboratory of Polymer Materials
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5
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Wu Y, Ali S, White RJ. Use of Electrocatalysis for Differentiating DNA Polymorphisms and Enhancing the Sensitivity of Electrochemical Nucleic Acid-Based Sensors with Covalent Redox Tags-Part II. ACS Sens 2020; 5:3842-3849. [PMID: 33305566 DOI: 10.1021/acssensors.0c02363] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Single-nucleotide polymorphisms (SNPs), insertion/deletion (indel) polymorphisms, and DNA methylation are the most frequent types of genetic variations. As such, DNA polymorphisms play significant roles in genetic mapping and diagnostics. Thus, analytical methods enabling DNA polymorphism detection will provide an invaluable means for early disease diagnosis. However, no single electrochemical nucleic acid-based sensor has achieved the detection of the three major polymorphisms (SNPs, indel polymorphisms, and DNA methylation) with sufficient specificity and sensitivity. In response, we explore the utilization of a catalytic reaction between methylene blue (MB) covalently linked to surface-bound nucleic acid and freely diffusing ferricyanide (Fe(CN)63-) to improve specificity and sensitivity of DNA polymorphism detection. We find that the dynamics of the nucleic acid tether is an additional rate-limiting factor for the electrocatalytic reaction, in addition to the more traditional kinetic and excess factors. Our proof-of-concept experiments demonstrate that the use of electrocatalysis enables differentiation of the three polymorphisms when target sequences are present at 10 nM. We hypothesize that this ability is a result of the distinct dynamics of the DNA probe with each respective polymorphism. In addition to the specificity the sensor displays, the sensor achieves a 20 pM limit of detection. We believe that the electrocatalysis between nucleic acid-tethered MB and Fe(CN)63- is highly promising for electrochemical nucleic acid-based sensors to achieve better specificity and sensitivity.
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Affiliation(s)
| | - Sufyaan Ali
- Walnut Hills High School, Cincinnati, Ohio 45207, United States
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6
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Hai X, Li Y, Zhu C, Song W, Cao J, Bi S. DNA-based label-free electrochemical biosensors: From principles to applications. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116098] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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7
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Label-Free DNA Biosensor Using Modified Reduced Graphene Oxide Platform as a DNA Methylation Assay. MATERIALS 2020; 13:ma13214936. [PMID: 33153095 PMCID: PMC7663213 DOI: 10.3390/ma13214936] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 12/17/2022]
Abstract
This work reports the use of modified reduced graphene oxide (rGO) as a platform for a label-free DNA-based electrochemical biosensor as a possible diagnostic tool for a DNA methylation assay. The biosensor sensitivity was enhanced by variously modified rGO. The rGO decorated with three nanoparticles (NPs)—gold (AuNPs), silver (AgNPs), and copper (CuNPs)—was implemented to increase the electrode surface area. Subsequently, the thiolated DNA probe (single-stranded DNA, ssDNA−1) was hybridized with the target DNA sequence (ssDNA-2). After the hybridization, the double-stranded DNA (dsDNA) was methylated by M.SssI methyltransferase (MTase) and then digested via a HpaII endonuclease specific site sequence of CpG (5′-CCGG-3′) islands. For monitoring the MTase activity, differential pulse voltammetry (DPV) was used, whereas the best results were obtained by rGO-AuNPs. This assay is rapid, cost-effective, sensitive, selective, highly specific, and displays a low limit of detection (LOD) of 0.06 U·mL−1. Lastly, this study was enriched with the real serum sample, where a 0.19 U·mL−1 LOD was achieved. Moreover, the developed biosensor offers excellent potential in future applications in clinical diagnostics, as this approach can be used in the design of other biosensors.
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8
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Ban DK, Liu Y, Wang Z, Ramachandran S, Sarkar N, Shi Z, Liu W, Karkisaval AG, Martinez-Loran E, Zhang F, Glinsky G, Bandaru PR, Fan C, Lal R. Direct DNA Methylation Profiling with an Electric Biosensor. ACS NANO 2020; 14:6743-6751. [PMID: 32407064 DOI: 10.1021/acsnano.9b10085] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
DNA methylation is one of the principal epigenetic mechanisms that control gene expression in humans, and its profiling provides critical information about health and disease. Current profiling methods require chemical modification of bases followed by sequencing, which is expensive and time-consuming. Here, we report a direct and rapid determination of DNA methylation using an electric biosensor. The device consists of a DNA-tweezer probe integrated on a graphene field-effect transistor for label-free, highly sensitive, and specific methylation profiling. The device performance was evaluated with a target DNA that harbors a sequence of the methylguanine-DNA methyltransferase, a promoter of glioblastoma multiforme, a lethal brain tumor. The results show that we successfully profiled the methylated and nonmethylated forms at picomolar concentrations. Further, fluorescence kinetics and molecular dynamics simulations revealed that the position of the methylation site(s), their proximity, and accessibility to the toe-hold region of the tweezer probe are the primary determinants of the device performance.
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Affiliation(s)
- Deependra Kumar Ban
- Department of Mechanical and Aerospace Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Yushuang Liu
- School of Life Science, Inner Mongolia Agricultural University, 306 Zhaowuda Road, Hohhot 010018, China
| | - Zejun Wang
- CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Srinivasan Ramachandran
- Department of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Nirjhar Sarkar
- Materials Science and Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Ze Shi
- Department of Mechanical and Aerospace Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Wenhan Liu
- CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Abhijith G Karkisaval
- Department of Mechanical and Aerospace Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Erick Martinez-Loran
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Feng Zhang
- School of Life Science, Inner Mongolia Agricultural University, 306 Zhaowuda Road, Hohhot 010018, China
- State Key Laboratory of Respiratory Disease, Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital, Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Gennadi Glinsky
- Institute of Engineering in Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Prabhakar R Bandaru
- Department of Mechanical and Aerospace Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Materials Science and Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Chunhai Fan
- CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, and Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ratnesh Lal
- Department of Mechanical and Aerospace Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Department of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Materials Science and Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Institute of Engineering in Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
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9
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Hairpin probes based click polymerization for label-free electrochemical detection of human T-lymphotropic virus types II. Anal Chim Acta 2019; 1059:86-93. [DOI: 10.1016/j.aca.2019.01.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 01/05/2019] [Accepted: 01/14/2019] [Indexed: 11/24/2022]
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10
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Gong W, Jiang S, Li Z, Li C, Xu J, Pan J, Huo Y, Man B, Liu A, Zhang C. Experimental and theoretical investigation for surface plasmon resonance biosensor based on graphene/Au film/D-POF. OPTICS EXPRESS 2019; 27:3483-3495. [PMID: 30732368 DOI: 10.1364/oe.27.003483] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 01/14/2019] [Indexed: 05/18/2023]
Abstract
A D-shape plastic optical fiber (D-POF) surface plasmon resonance (SPR) biosensor based on the graphene/Au film (G/Au) was proposed and experimentally demonstrated for detection of DNA hybridization process. To improve the detection performance of SPR sensors, the Physical Vapor Deposition (PVD) method was used to evaporate the Au film directly onto the graphene grown on copper foil, and the Au film acted as a role of traditional Polymethyl Methacrylate (PMMA). The process made graphene and Au film form seamless contact. Next, the G/Au was transferred onto the D-shape fiber together. We explored the G/Au SPR sensor by using the finite element method (FEM) and obtained the optimum materials thickness to form configuration. Compared to other plastic optical fiber experiments, the proposed sensor's sensitivity was improved effectively and calculated as 1227 nm/RIU in a range of glucose solution. Meanwhile, our proposed sensor successfully distinguishes hybridization and single nucleotide polymorphisms (SNP) by observing the resonance wavelength change. It also exhibits a satisfactory linear response (R2 = 0.996) to the target DNA liquids with respective concentrations of 0.1nM to1µM, which shows this method's wide potential in medical diagnostics.
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11
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Liwinska W, Stanislawska I, Lyp M, Stojek Z, Zabost E. Switchable conformational changes of DNA nanogel shells containing disulfide–DNA hybrids for controlled drug release and efficient anticancer action. RSC Adv 2019; 9:13736-13748. [PMID: 35519569 PMCID: PMC9063941 DOI: 10.1039/c9ra02519g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 04/22/2019] [Indexed: 11/21/2022] Open
Abstract
Oligonucleotide strands containing dithiol (–SS–) groups were used as the co-crosslinkers in PNIPA–AAc based nanogels (NGs). They hybridized with PEG–oligonucleotides introduced into the gels. The specific DNA hybrid formed in the nanogel/nanocarrier was involved in highly efficient accumulation of intercalators. The presence of –SS– groups/bridges improved the storing efficiency of doxorubicin (Dox) in DNA hybrids by 53, 40 and 20% compared to regular, single stranded and regular double stranded DNA crosslinkers, respectively. The explicit arrangement of the hybrids in the carrier enabled their reduction by glutathione and an effective cancer treatment while the side toxicity could be reduced. Compared to the NGs with traditional crosslinkers and those containing typical dsDNA-based hybrids, an improved, switchable and controlled drug release occurred in the novel NGs. Since the novel NGs can release the oligonucleotide strands during their degradation, this gives an opportunity for a combined drug-gene therapy. Switchable conformational changes of multiresponsive nanogels containing disulfide/DNA hybrid shells for pulsative drug release.![]()
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Affiliation(s)
| | | | - Marek Lyp
- College of Rehabilitation
- 01-234 Warsaw
- Poland
| | | | - Ewelina Zabost
- Faculty of Chemistry
- University of Warsaw
- 02-093 Warsaw
- Poland
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12
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Liu H, Luo J, Fang L, Huang H, Deng J, Huang J, Zhang S, Li Y, Zheng J. An electrochemical strategy with tetrahedron rolling circle amplification for ultrasensitive detection of DNA methylation. Biosens Bioelectron 2018; 121:47-53. [DOI: 10.1016/j.bios.2018.07.055] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/23/2018] [Accepted: 07/25/2018] [Indexed: 12/20/2022]
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13
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Morales MA, Halpern JM. Guide to Selecting a Biorecognition Element for Biosensors. Bioconjug Chem 2018; 29:3231-3239. [PMID: 30216055 DOI: 10.1021/acs.bioconjchem.8b00592] [Citation(s) in RCA: 184] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Biosensors are powerful diagnostic tools defined as having a biorecognition element for analyte specificity and a transducer for a quantifiable signal. There are a variety of different biorecognition elements, each with unique characteristics. Understanding the advantages and disadvantages of each biorecognition element and their influence on overall biosensor performance is crucial in the planning stages to promote the success of novel biosensor development. Therefore, this review will focus on selecting the optimal biorecognition element in the preliminary design phase for novel biosensors. Included is a review of the typical characteristics and binding mechanisms of various biorecognition elements, and how they relate to biosensor performance characteristics, specifically sensitivity, selectivity, reproducibility, and reusability. The goal is to point toward language needed to improve the design and development of biosensors toward clinical success.
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Affiliation(s)
- Marissa A Morales
- Department of Chemical Engineering , University of New Hampshire , Durham , New Hampshire 03824 , United States
| | - Jeffrey Mark Halpern
- Department of Chemical Engineering , University of New Hampshire , Durham , New Hampshire 03824 , United States
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14
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Zhang P, Aydemir N, Alkaisi M, Williams DE, Travas-Sejdic J. Direct Writing and Characterization of Three-Dimensional Conducting Polymer PEDOT Arrays. ACS APPLIED MATERIALS & INTERFACES 2018; 10:11888-11895. [PMID: 29570263 DOI: 10.1021/acsami.8b02289] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Direct writing is an effective and versatile technique for three-dimensional (3D) fabrication of conducting polymer (CP) structures. It is precisely localized and highly controllable, thus providing great opportunities for incorporating CPs into microelectronic array devices. Herein we demonstrate 3D writing and characterization of poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate (PEDOT:PSS) pillars in an array format, by using an in-house-constructed variant of scanning ion conductance microscopy (SICM). CP pillars with different aspect ratios were successfully fabricated by optimizing the writing parameters: pulling speed, pulling time, concentration of the polymer solution, and the micropipette tip diameter. Especially, super high aspect ratio pillars of around 7 μm in diameter and 5000 μm in height were fabricated, indicating a good capability of this direct writing technique. Additions of an organic solvent and a cross-linking agent contribute to a significantly enhanced water stability of the pillars, critical if the arrays were to be used in biologically relevant applications. Surface morphologies and structural analysis of CP pillars were characterized by scanning electron microscopy and Raman spectroscopy, respectively. Electrochemical properties of the individual pillars of different heights were examined by cyclic voltammetry using a double-barrel micropipette as an electrochemical cell. Exceptional mechanical properties of the pillars, such as high flexibility and robustness, were observed when bent by applying a force. The 3D pillar arrays are expected to provide versatile substrates for functionalized and integrated biological sensing and electrically addressable array devices.
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Affiliation(s)
- Peikai Zhang
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
| | - Nihan Aydemir
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
| | - Maan Alkaisi
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
- Electrical and Computer Engineering, College of Engineering , University of Canterbury , Christchurch 8140 , New Zealand
| | - David E Williams
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
| | - Jadranka Travas-Sejdic
- School of Chemical Sciences , The University of Auckland , Auckland 1010 , New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
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15
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Zhu B, Travas-Sejdic J. PNA versus DNA in electrochemical gene sensing based on conducting polymers: study of charge and surface blocking effects on the sensor signal. Analyst 2018; 143:687-694. [PMID: 29297913 DOI: 10.1039/c7an01590a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In this communication, we present an in-depth study of DNA/DNA, DNA/PNA and PNA/PNA hybridisation on a conducting polymer-modified electrode, measured by means of electrochemical impedance spectroscopy (EIS). DNA or PNA nucleic base sequence probes (where DNA stands for deoxyribonucleic acid and PNA for peptide nucleic acid) were covalently attached onto the sensor surface. As PNA is a non-charged variant of DNA, we investigate the effects of the surface charge and surface blocking by the surface confined probe/target nucleic bases complexes onto the kinetics of redox reaction of Fe(CN)63-/4- couple occurring at the electrode/solution interface that provides electrochemical readout for hybridisation. A range of hybridisation detection experiments were performed, where the surface charge and surface charge density were varied, through varying the charged nature of the probe and the target (i.e. PNA or DNA) and the density of surface-bound PNA and DNA probes. To further the understanding of these effects on the measured electrochemical signal, kinetic studies of the hybridisation reactions were undertaken, and the equilibrium binding constants and binding rate constants for the hybridisation reactions were obtained. The study provides valuable insights to guide future designs of biosensors.
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Affiliation(s)
- Bicheng Zhu
- Polymer Electronics Research Centre, School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand. and The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Jadranka Travas-Sejdic
- Polymer Electronics Research Centre, School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand. and The MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
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16
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Aydemir N, Chan E, Baek P, Barker D, Williams DE, Travas-Sejdic J. New immobilisation method for oligonucleotides on electrodes enables highly-sensitive, electrochemical label-free gene sensing. Biosens Bioelectron 2017; 97:128-135. [DOI: 10.1016/j.bios.2017.05.049] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/16/2017] [Accepted: 05/27/2017] [Indexed: 01/02/2023]
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17
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Recent advances in transition-metal dichalcogenides based electrochemical biosensors: A review. Biosens Bioelectron 2017; 97:305-316. [DOI: 10.1016/j.bios.2017.06.011] [Citation(s) in RCA: 236] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 05/25/2017] [Accepted: 06/07/2017] [Indexed: 11/22/2022]
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18
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Chen F, Wang X, Cao X, Zhao Y. Accurate Electrochemistry Analysis of Circulating Methylated DNA from Clinical Plasma Based on Paired-End Tagging and Amplifications. Anal Chem 2017; 89:10468-10473. [PMID: 28810735 DOI: 10.1021/acs.analchem.7b02572] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Circulating methylated DNA has been a new kind of cancer biomarker, yet its small fraction of trace total DNA from clinical samples impairs the accurate analysis. Though fluorescence methods based on quantitative methylation specific PCR (qMSP) have been adopted routinely, yet alternative electrochemistry assay of such DNA from clinical samples remains a great challenge. Herein, we report accurate electrochemistry analysis of circulating methylated DNA from clinical plasma samples based on a paired-end tagging and amplifications strategy. Two DNA primers each labeled with digoxigenin (Dig) and biotin are designed for the recognition and amplification of methylated DNA. Paired-end tagging amplicons and avidin-HRP molecules are successively captured on the electrode modified with Anti-Dig. Then HRP executes catalytic reaction to generate amplified signal. The design of paired-end tagging can readily integrate downstream electrochemical amplified reaction, and two heterogeneous amplifications enable high assay sensitivity. As little as 40 pg of methylated genomic DNA (∼10 genomic equivalents) is well identified, and our strategy can even distinguish as low as 1% methylation level. Tumor-specific methylated DNA is clearly detected in the plasma of 10 of 11 NSCLC patients. The high clinical sensitivity of 91% (10/11) indicates the good consistency with clinical diagnosis. Excellent spatial control of electrochemistry allows simpler detection of more methylation patterns compared to fluorescence methods. The developed electrochemical assay is a promising liquid biopsy tool for the analysis of tumor-specific circulating DNA.
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Affiliation(s)
- Feng Chen
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, People's Republic of China
| | - Xuyao Wang
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, People's Republic of China
| | - Xiaowen Cao
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, People's Republic of China
| | - Yongxi Zhao
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University , Xi'an 710049, People's Republic of China
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19
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Hossain T, Mahmudunnabi G, Masud MK, Islam MN, Ooi L, Konstantinov K, Hossain MSA, Martinac B, Alici G, Nguyen NT, Shiddiky MJA. Electrochemical biosensing strategies for DNA methylation analysis. Biosens Bioelectron 2017; 94:63-73. [PMID: 28259051 DOI: 10.1016/j.bios.2017.02.026] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 02/15/2017] [Accepted: 02/16/2017] [Indexed: 12/31/2022]
Abstract
DNA methylation is one of the key epigenetic modifications of DNA that results from the enzymatic addition of a methyl group at the fifth carbon of the cytosine base. It plays a crucial role in cellular development, genomic stability and gene expression. Aberrant DNA methylation is responsible for the pathogenesis of many diseases including cancers. Over the past several decades, many methodologies have been developed to detect DNA methylation. These methodologies range from classical molecular biology and optical approaches, such as bisulfite sequencing, microarrays, quantitative real-time PCR, colorimetry, Raman spectroscopy to the more recent electrochemical approaches. Among these, electrochemical approaches offer sensitive, simple, specific, rapid, and cost-effective analysis of DNA methylation. Additionally, electrochemical methods are highly amenable to miniaturization and possess the potential to be multiplexed. In recent years, several reviews have provided information on the detection strategies of DNA methylation. However, to date, there is no comprehensive evaluation of electrochemical DNA methylation detection strategies. Herein, we address the recent developments of electrochemical DNA methylation detection approaches. Furthermore, we highlight the major technical and biological challenges involved in these strategies and provide suggestions for the future direction of this important field.
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Affiliation(s)
- Tanvir Hossain
- Department of Biochemistry & Molecular Biology, Shahjalal University of Science & Technology, Sylhet 3114, Bangladesh
| | - Golam Mahmudunnabi
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science & Technology, Sylhet 3114, Bangladesh
| | - Mostafa Kamal Masud
- Department of Biochemistry & Molecular Biology, Shahjalal University of Science & Technology, Sylhet 3114, Bangladesh; Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, Innovation Campus, North Wollongong, NSW 2519, Australia; Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia
| | - Md Nazmul Islam
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia; School of Natural Sciences, Griffith University (Nathan Campus), Nathan, QLD 4111, Australia
| | - Lezanne Ooi
- Illawarra Health and Medical Research Institute, School of Biological Sciences, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
| | - Konstantin Konstantinov
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, Innovation Campus, North Wollongong, NSW 2519, Australia
| | - Md Shahriar Al Hossain
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM), University of Wollongong, Squires Way, Innovation Campus, North Wollongong, NSW 2519, Australia
| | - Boris Martinac
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia
| | - Gursel Alici
- ARC Centre of Excellence for Electromaterials Science, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
| | - Nam-Trung Nguyen
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia
| | - Muhammad J A Shiddiky
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, QLD 4111, Australia; School of Natural Sciences, Griffith University (Nathan Campus), Nathan, QLD 4111, Australia.
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20
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Yue W, Tang C, Wang C, Bai C, Liu S, Xie X, Hua H, Zhang Z, Li D. An electricity-fluorescence double-checking biosensor based on graphene for detection of binding kinetics of DNA hybridization. RSC Adv 2017. [DOI: 10.1039/c7ra08246k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, an electricity-fluorescence double-checking biosensor based on graphene materials has been presented for detection of DNA hybridization kinetics.
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Affiliation(s)
- Weiwei Yue
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology
- School of Physics and Electronics
- Shandong Normal University
- Jinan 250358
- P. R. China
| | - Caiyan Tang
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology
- School of Physics and Electronics
- Shandong Normal University
- Jinan 250358
- P. R. China
| | - Chunxing Wang
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology
- School of Physics and Electronics
- Shandong Normal University
- Jinan 250358
- P. R. China
| | - Chengjie Bai
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology
- School of Physics and Electronics
- Shandong Normal University
- Jinan 250358
- P. R. China
| | - Shuyi Liu
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology
- School of Physics and Electronics
- Shandong Normal University
- Jinan 250358
- P. R. China
| | - Xiaohui Xie
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology
- School of Physics and Electronics
- Shandong Normal University
- Jinan 250358
- P. R. China
| | - Hongling Hua
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology
- School of Physics and Electronics
- Shandong Normal University
- Jinan 250358
- P. R. China
| | - Zhen Zhang
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology
- School of Physics and Electronics
- Shandong Normal University
- Jinan 250358
- P. R. China
| | - Dengwang Li
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology
- School of Physics and Electronics
- Shandong Normal University
- Jinan 250358
- P. R. China
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21
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Yin H, Wang H, Jiang W, Zhou Y, Ai S. Electrochemical immunosensor for N6-methyladenosine detection in human cell lines based on biotin-streptavidin system and silver-SiO 2 signal amplification. Biosens Bioelectron 2016; 90:494-500. [PMID: 27825887 DOI: 10.1016/j.bios.2016.10.066] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/05/2016] [Accepted: 10/25/2016] [Indexed: 01/05/2023]
Abstract
N6-methyladenosine (m6A), a kind of RNA methylation form and important epigenetic event, plays crucial roles in many biological progresses. Thus it is essential to quantitatively detect m6A in complicated biological samples. Herein, a simple and sensitive electrochemical method was developed for m6A detection using N6-methyladenosine-5'-triphosphate (m6ATP) as detection target molecule. In this detection strategy, anti-m6A antibody was selected as m6A recognition and capture reagent, silver nanoparticles and amine-PEG3-biotin functionalized SiO2 nanospheres (Ag@SiO2) was prepared and used as signal amplification label, and phos-tag-biotin played a vital role of "bridge" to link m6ATP and Ag@SiO2 through the two forms of specific interaction between phosphate group of m6ATP and phos-tag, biotin and streptavidin, respectively. Under the optimal experimental conditions, the immunosensor presented a wide linear range from 0.2 to 500nM and a low detection limit of 0.078nM (S/N=3). The reproducibility and specificity were acceptable. Moreover, the developed method was also validated for detect m6A content in human cell lines. Importantly, this detection strategy provides a promising immunodetection platform for ribonucleotides and deoxyribonucleotides with the advantages of simplicity, low-costing, specificity and sensitivity.
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Affiliation(s)
- Huanshun Yin
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China
| | - Haiyan Wang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China
| | - Wenjing Jiang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China
| | - Yunlei Zhou
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China.
| | - Shiyun Ai
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China.
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22
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Hajihosseini S, Nasirizadeh N, Hejazi MS, Yaghmaei P. An electrochemical DNA biosensor based on Oracet Blue as a label for detection of Helicobacter pylori. Int J Biol Macromol 2016; 91:911-7. [DOI: 10.1016/j.ijbiomac.2016.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 03/25/2016] [Accepted: 04/04/2016] [Indexed: 12/21/2022]
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23
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MacConaghy KI, Chadly DM, Stoykovich MP, Kaar JL. Label-free detection of missense mutations and methylation differences in the p53 gene using optically diffracting hydrogels. Analyst 2016; 140:6354-62. [PMID: 26270146 DOI: 10.1039/c5an01191d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a novel approach for DNA detection as well as genetic screening of mutations by uniquely combining DNA-responsive and optically diffracting materials. This approach entails the polymerization of a photonic crystal within a hydrogel network that alters the diffraction of light in response to a target DNA strand. The utility of this approach, which permits label-free sensing, was demonstrated via the detection of a target sequence from the DNA binding domain of the major tumor suppressor protein p53. Using a complementary capture probe strand, we were able to detect down to picomole concentrations of the target p53 sequence. Moreover, we demonstrated that this approach could readily detect a single base pair mutation in the target strand, which corresponds to the hotspot cancer mutation R175H in p53. The sensitivity of detection was increased by lowering the rate of annealing of the target strand and adjusting the solution ionic strength during optical characterization. Changes in ionic strength during characterization impact the melting temperature of the bound target DNA and the Donnan potential between the hydrogel and solution, which influence detection. We further showed that this approach is sensitive to epigenetic changes via the detection of a fully methylated form of the target p53 sequence. Ultimately, this approach represents a new paradigm for DNA detection and specifically genetic screening of p53 as well as other disease markers and nucleotide modifications that alter the properties of DNA (e.g., epigenetic alterations and adducts with chemical carcinogens).
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Affiliation(s)
- Kelsey I MacConaghy
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309, USA.
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24
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Wang L, Yu F, Wang F, Chen Z. Electrochemical detection of DNA methylation using a glassy carbon electrode modified with a composite made from carbon nanotubes and β-cyclodextrin. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3122-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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25
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Liwinska W, Symonowicz M, Stanislawska I, Lyp M, Stojek Z, Zabost E. Environmentally sensitive nanohydrogels decorated with a three-strand oligonucleotide helix for controlled loading and prolonged release of intercalators. RSC Adv 2016. [DOI: 10.1039/c6ra16592c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Biocompatible nanohydrogels modified with three-segment oligonucleotide hybrids were used for controlled loading and prolonged release of anticancer intercalators in hyperthermia treatment.
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Affiliation(s)
| | | | | | - Marek Lyp
- College of Rehabilitation
- Warsaw
- Poland
| | | | - Ewelina Zabost
- Faculty of Chemistry
- University of Warsaw
- 02-093 Warsaw
- Poland
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26
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Aydemir N, Malmström J, Travas-Sejdic J. Conducting polymer based electrochemical biosensors. Phys Chem Chem Phys 2016; 18:8264-77. [DOI: 10.1039/c5cp06830d] [Citation(s) in RCA: 133] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Conducting polymer (CP)-based electrochemical biosensors have gained great attention as such biosensor platforms are easy and cost-effective to fabricate, and provide a direct electrical readout of the presence of biological analytes with high sensitivity and selectivity.
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Affiliation(s)
- Nihan Aydemir
- Polymer Electronics Research Centre
- School of Chemical Sciences
- University of Auckland
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - Jenny Malmström
- Polymer Electronics Research Centre
- School of Chemical Sciences
- University of Auckland
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - Jadranka Travas-Sejdic
- Polymer Electronics Research Centre
- School of Chemical Sciences
- University of Auckland
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
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27
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Shamsipur M, Memari Z, Ganjali MR, Norouzi P, Faridbod F. Highly sensitive gold nanoparticles-based optical sensing of DNA hybridization using bis(8-hydroxyquinoline-5-solphonate)cerium(III) chloride as a novel fluorescence probe. J Pharm Biomed Anal 2016; 118:356-362. [DOI: 10.1016/j.jpba.2015.10.046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 10/31/2015] [Accepted: 10/31/2015] [Indexed: 02/04/2023]
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28
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Zeng Q, Wei T, Wang M, Huang X, Fang Y, Wang L. Polyfurfural film modified glassy carbon electrode for highly sensitive nifedipine determination. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.10.141] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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29
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Zhu B, Booth MA, Woo HY, Hodgkiss JM, Travas-Sejdic J. Label-Free, Electrochemical Quantitation of Potassium Ions from Femtomolar Levels. Chem Asian J 2015; 10:2169-75. [DOI: 10.1002/asia.201500313] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 06/29/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Bicheng Zhu
- School of Chemical Sciences; Polymer Electronics Research Centre (PERC); The University of Auckland; 23 Symonds Street Auckland New Zealand
| | - Marsilea A. Booth
- Digital Sensing Limited; 16 Beatrice Tinsley Cresent, Albany Auckland 0632 New Zealand
| | - Han Young Woo
- Department of Cogno Mechatronics Engineering; Pusan National University; Miryang 627-706 Republic of Korea
| | - Justin M. Hodgkiss
- The MacDiarmid Institute for Advanced Materials and Nanotechnology; Laby 410, Gate 6 Kelburn Parade Kelburn, Wellington New Zealand
- School of Chemical and Physical Sciences; Victoria University of Wellington; Wellington New Zealand
| | - Jadranka Travas-Sejdic
- School of Chemical Sciences; Polymer Electronics Research Centre (PERC); The University of Auckland; 23 Symonds Street Auckland New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology; Laby 410, Gate 6 Kelburn Parade Kelburn, Wellington New Zealand
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30
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Zhou Y, Yang Z, Li X, Wang Y, Yin H, Ai S. Electrochemical biosensor for detection of DNA hydroxymethylation based on glycosylation and alkaline phosphatase catalytic signal amplification. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.06.043] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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31
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Kurita R, Yanagisawa H, Yoshioka K, Niwa O. Site-specific immunochemical methylation assessment from genome DNA utilizing a conformational difference between looped-out target and stacked-in nontarget methylcytosines. Biosens Bioelectron 2015; 70:366-71. [DOI: 10.1016/j.bios.2015.03.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 03/23/2015] [Accepted: 03/24/2015] [Indexed: 02/06/2023]
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32
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Wu A, Wang Q, Zhu Q, Ni J, Gao F. A facile and highly sensitive impedimetric DNA biosensor with ultralow background response based on in situ reduced graphene oxide. RSC Adv 2015. [DOI: 10.1039/c5ra16233e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile and highly sensitive impedimetric DNA biosensor with ultralow background response based on in situ reduced graphene oxide.
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Affiliation(s)
- Aiqun Wu
- Department of Chemistry and Environment Science
- Fujian Province University Key Laboratory of Analytical Science Minnan Normal University
- Zhangzhou
- P. R. China
| | - Qingxiang Wang
- Department of Chemistry and Environment Science
- Fujian Province University Key Laboratory of Analytical Science Minnan Normal University
- Zhangzhou
- P. R. China
| | - Qionghua Zhu
- Department of Chemistry and Environment Science
- Fujian Province University Key Laboratory of Analytical Science Minnan Normal University
- Zhangzhou
- P. R. China
| | - Jiancong Ni
- Department of Chemistry and Environment Science
- Fujian Province University Key Laboratory of Analytical Science Minnan Normal University
- Zhangzhou
- P. R. China
| | - Feng Gao
- Department of Chemistry and Environment Science
- Fujian Province University Key Laboratory of Analytical Science Minnan Normal University
- Zhangzhou
- P. R. China
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