1
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Momeni F, Khoshfetrat SM, Bagheri H, Zarei K. Ti 3C 2 MXene-based nanozyme as coreaction accelerator for enhancing electrochemiluminescence of glucose biosensing. Biosens Bioelectron 2024; 250:116078. [PMID: 38295578 DOI: 10.1016/j.bios.2024.116078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 01/21/2024] [Accepted: 01/25/2024] [Indexed: 02/02/2024]
Abstract
Delamination of the exfoliated multilayer MXenes with electro-catalysts, not only leads to increasing surface area for high electrochemiluminescent (ECL) signal tracer loading but also provides highly sensitive achievements in a coreaction accelerator manner. To this end, herein, we used bromophenol blue (BPB)-delaminated multilayer Ti3C2 MXene as both a coreaction accelerator to promote the electrochemiluminescent (ECL) reaction rate of luminol (LUM) and the co-reactant H2O2 and a substrate for retaining high loading of glucose oxidase (GOx)-conjugated polyethylene imine (PEI) along with luminophore species into more open structure of Ti3C2 MXene for sensitive detection of glucose. In the presence of glucose, in situ generating H2O2 product through a GOx-catalyzed process could produce abundant •OH radicals via the peroxidase-like activity of the BPB@Ti3C2 in the LUM ECL reaction. Moreover, decreasing the distance between the high-content LUM into the BPB@Ti3C2 and the generated •OH, minimizes the decomposition of highly active •OH, providing a superb ECL signal. Last, the proximity of incorporated GOx into the delaminated Ti3C2 MXene near the electrode allows efficient electron transfer between the electrode and enzyme. The integration of such amplifying effects endowed high sensitivity and excellent selectivity for glucose with a low limit of detection of 0.02 μM in the wide range of 0.01 μM-40,000 μM, enabling the feasibility of the glucose analysis in human serum samples. Overall, the enhanced ECL based on the BPB@Ti3C2 opens a new horizon to develop highly sensitive MXene-based ECL toward the field of biosensors.
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Affiliation(s)
| | - Seyyed Mehdi Khoshfetrat
- Biosensor and Energy Research Center, Faculty of Basic Science, Ayatollah Boroujerdi University, Boroujerd, Iran.
| | - Hasan Bagheri
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Kobra Zarei
- School of Chemistry, Damghan University, Damghan, Iran.
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2
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Liu J, Shen Y, Wang G, Xiang Y, Guo Y, Sun X, Liu Y. Highly-sensitive electrochemiluminescence biosensor for detection of inosine monophosphate in meat based on graphdiyne/AuNPs/luminol nanocomposites. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.10.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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Koowattanasuchat S, Ngernpimai S, Matulakul P, Thonghlueng J, Phanchai W, Chompoosor A, Panitanarak U, Wanna Y, Intharah T, Chootawiriyasakul K, Anata P, Chaimnee P, Thanan R, Sakonsinsiri C, Puangmali T. Rapid detection of cancer DNA in human blood using cysteamine-capped AuNPs and a machine learning-enabled smartphone. RSC Adv 2023; 13:1301-1311. [PMID: 36686949 PMCID: PMC9814906 DOI: 10.1039/d2ra05725e] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 11/28/2022] [Indexed: 01/06/2023] Open
Abstract
DNA methylation occurs when a methyl group is added to a cytosine (C) residue's fifth carbon atom, forming 5-methylcytosine (5-mC). Cancer genomes have a distinct methylation landscape (Methylscape), which could be used as a universal cancer biomarker. This study developed a simple, low-cost, and straightforward Methylscape sensing platform using cysteamine-decorated gold nanoparticles (Cyst/AuNPs), in which the sensing principle is based on methylation-dependent DNA solvation. Normal and cancer DNAs have distinct methylation profiles; thus, they can be distinguished by observing the dispersion of Cyst/AuNPs adsorbed on these DNA aggregates in MgCl2 solution. After optimising the MgCl2, Cyst/AuNPs, DNA concentration, and incubation time, the optimised conditions were used for leukemia screening, by comparing the relative absorbance (ΔA 650/525). Following the DNA extraction from actual blood samples, this sensor demonstrated effective leukemia screening in 15 minutes with high sensitivity, achieving 95.3% accuracy based on the measurement by an optical spectrophotometer. To further develop for practical realisation, a smartphone assisted by machine learning was used to screen cancer patients, achieving 90.0% accuracy in leukemia screening. This sensing platform can be applied not only for leukemia screening but also for other cancers associated with epigenetic modification.
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Affiliation(s)
| | - Sawinee Ngernpimai
- Department of Physics, Faculty of Science, Khon Kaen UniversityKhon Kaen 40002Thailand
| | - Piyaporn Matulakul
- Department of Physics, Faculty of Science, Khon Kaen UniversityKhon Kaen 40002Thailand
| | - Janpen Thonghlueng
- Department of Physics, Faculty of Science, Khon Kaen UniversityKhon Kaen 40002Thailand
| | - Witthawat Phanchai
- Department of Physics, Faculty of Science, Khon Kaen UniversityKhon Kaen 40002Thailand
| | - Apiwat Chompoosor
- Department of Chemistry, Faculty of Science, Ramkhamhaeng UniversityBangkok10240Thailand
| | - Uthumporn Panitanarak
- Department of Biostatistics, Faculty of Public Health, Mahidol UniversityBangkok10400Thailand
| | - Yupaporn Wanna
- Department of Statistics, Faculty of Science, Khon Kaen UniversityKhon Kaen40002Thailand
| | - Thanapong Intharah
- Department of Statistics, Faculty of Science, Khon Kaen UniversityKhon Kaen40002Thailand
| | | | - Pimjai Anata
- Molecular Diagnosis Unit, Central Laboratory, Srinagarind Hospital, Khon Kaen UniversityKhon Kaen40002Thailand
| | - Prajuab Chaimnee
- Molecular Diagnosis Unit, Central Laboratory, Srinagarind Hospital, Khon Kaen UniversityKhon Kaen40002Thailand
| | - Raynoo Thanan
- Department of Biochemistry, Faculty of Medicine, Khon Kaen UniversityKhon Kaen40002Thailand
| | - Chadamas Sakonsinsiri
- Department of Biochemistry, Faculty of Medicine, Khon Kaen UniversityKhon Kaen40002Thailand
| | - Theerapong Puangmali
- Department of Physics, Faculty of Science, Khon Kaen UniversityKhon Kaen 40002Thailand
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4
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Patel MR, Kailasa SK. Carbon Nitride Nanomaterials: Properties, Synthetic Approaches and New Insights in Fluorescence Spectrometry for Assaying of Metal Ions, Organic and Biomolecules. ChemistrySelect 2022. [DOI: 10.1002/slct.202201849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Mayurkumar Revabhai Patel
- Department of Chemistry Sardar Vallabhbhai National Institute of Technology Surat 395007 Gujarat India
| | - Suresh Kumar Kailasa
- Department of Chemistry Sardar Vallabhbhai National Institute of Technology Surat 395007 Gujarat India
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5
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Hou Y, Jia B, Sheng P, Liao X, Shi L, Fang L, Zhou L, Kong W. Aptasensors for mycotoxins in foods: Recent advances and future trends. Compr Rev Food Sci Food Saf 2021; 21:2032-2073. [PMID: 34729895 DOI: 10.1111/1541-4337.12858] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 08/19/2021] [Accepted: 09/16/2021] [Indexed: 02/06/2023]
Abstract
Mycotoxin contamination in foods has posed serious threat to public health and raised worldwide concern. The development of simple, rapid, facile, and cost-effective methods for mycotoxin detection is of urgent need. Aptamer-based sensors, abbreviated as aptasensors, with excellent recognition capacity to a wide variety of mycotoxins have attracted ever-increasing interest of researchers because of their simple fabrication, rapid response, high sensitivity, low cost, and easy adaptability for in situ measurement. The past few decades have witnessed the rapid advances of aptasensors for mycotoxin detection in foods. Therefore, this review first summarizes the reported aptamer sequences specific for mycotoxins. Then, the recent 5-year advancements in various newly developed aptasensors, which, according to the signal output mode, are divided into electrochemical, optical and photoelectrochemical categories, for mycotoxin detection are comprehensively discussed. A special attention is taken on their strengths and limitations in real-world application. Finally, the current challenges and future perspectives for developing novel highly reliable aptasensors for mycotoxin detection are highlighted, which is expected to provide powerful references for their thorough research and extended applications. Owing to their unique advantages, aptasensors display a fascinating prospect in food field for safety inspection and risk assessment.
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Affiliation(s)
- Yujiao Hou
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi, China.,Xinjiang Agricultural Vocational Technical College, Changji, China
| | - Boyu Jia
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ping Sheng
- College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi, China
| | - Xiaofang Liao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Linchun Shi
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ling Fang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lidong Zhou
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Weijun Kong
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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6
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Huang Y, Zhang W, Zhao S, Xie Z, Chen S, Yi G. Ultra-sensitive detection of DNA N6-adenine methyltransferase based on a 3D tetrahedral fluorescence scaffold assisted by symmetrical double-ring dumbbells. Anal Chim Acta 2021; 1184:339018. [PMID: 34625260 DOI: 10.1016/j.aca.2021.339018] [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: 04/18/2021] [Revised: 07/13/2021] [Accepted: 08/31/2021] [Indexed: 12/11/2022]
Abstract
DNA methylation is an epigenetic modification that plays a vital role in X chromosome inactivation, genome imprinting, and gene expression. DNA methyltransferase establishes and maintains a stable methylation state in genomic DNA. Efficient and specific DNA methyltransferase testing is essential for the early diagnosis and treatment of cancer. In this study, we designed an ultra-sensitive fluorescent biosensor, based on a 3D tetrahedral fluorescent scaffold assisted by symmetrical double-ring dumbbells, for the detection of DNA-[N 6-adenine]-methyltransferase (Dam MTase). Double-stranded DNA was methylated by Dam MTase and then digested by DpnI to form two identical dumbbell rings. The 3D tetrahedral fluorescent scaffold was synthesized from four oligonucleotide chains containing hairpins. When the sheared dumbbells reacted with the 3D tetrahedral fluorescent scaffold, the hairpins opened and a fluorescence signal could be detected. The strategy was successful over a wide detection range, from 0.002 to 100 U mL-1 Dam MTase, and the lowest detection limit was 0.00036 U mL-1. Control experiments with M.SssI methyltransferase and HpaII methylation restriction endonuclease confirmed the specificity of the method. Experiments with spiked human serum and the 5-fluorouracil inhibitor proved the suitability of the method for early cancer diagnosis.
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Affiliation(s)
- Yuqi Huang
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Wenxiu Zhang
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Shuhui Zhao
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Zuowei Xie
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Siyi Chen
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China
| | - Gang Yi
- Key Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, PR China.
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7
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A novel p16 protein electrochemiluminescence biosensor using optical multi-metal nanocomposites as excellent nanocarriers. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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DNA-functionalized biosensor for amplifying signal detection of DNA methyltransferase activity. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Yang M, Chen L, Guo L, Qiu B, Lin Z. High Sensitive Electrochemiluminescence Biosensor Based on Ru(phen)
3
2+
‐loaded Double Strand DNA as Signal Tags use to Detect DNA Methyltransferase Activity. ELECTROANAL 2021. [DOI: 10.1002/elan.202100184] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Ming Yang
- The First Affiliated Hospital College of Medicine Zhejiang University Hangzhou 310003 China
| | - Liping Chen
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety College of Chemistry Fuzhou University Fuzhou Fujian 350116 China
| | - Longhua Guo
- College of Biological Chemical Sciences and Engineering Jiaxing University Jiaxing 314001 China
| | - Bin Qiu
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety College of Chemistry Fuzhou University Fuzhou Fujian 350116 China
| | - Zhenyu Lin
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety College of Chemistry Fuzhou University Fuzhou Fujian 350116 China
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10
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Zhou Y, Yin H, Zhao WW, Ai S. Electrochemical, electrochemiluminescent and photoelectrochemical bioanalysis of epigenetic modifiers: A comprehensive review. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213519] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Wu J, Hu Q, Chen Q, Dai J, Wu X, Wang S, Lou X, Xia F. Modular DNA-Incorporated Aggregation-Induced Emission Probe for Sensitive Detection and Imaging of DNA Methyltransferase. ACS APPLIED BIO MATERIALS 2020; 3:9002-9011. [DOI: 10.1021/acsabm.0c01249] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jun Wu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430078, China
| | - Qinyu Hu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430078, China
| | - Qing Chen
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430078, China
| | - Jun Dai
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xia Wu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430078, China
| | - Shixuan Wang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaoding Lou
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430078, China
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430078, China
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12
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Zhang S, Huang J, Lu J, Liu M, Chen X, Su S, Mo F, Zheng J. Electrochemical and Optical Biosensing Strategies for DNA Methylation Analysis. Curr Med Chem 2020; 27:6159-6187. [DOI: 10.2174/0929867326666190903161750] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 07/24/2019] [Accepted: 08/07/2019] [Indexed: 12/14/2022]
Abstract
DNA methylation is considered as a crucial part of epigenetic modifications and a popular
research topic in recent decades. It usually occurs with a methyl group adding to the fifth carbon
atom of cytosine while the base sequence of DNA remains unchanged. DNA methylation has significant
influences on maintaining cell functions, genetic imprinting, embryonic development and
tumorigenesis procedures and hence the analysis of DNA methylation is of great medical significance.
With the development of analytical techniques and further research on DNA methylation,
numerous DNA methylation detection strategies based on biosensing technology have been developed
to fulfill various study requirements. This article reviewed the development of electrochemistry
and optical biosensing analysis of DNA methylation in recent years; in addition, we also reviewed
some recent advances in the detection of DNA methylation using new techniques, such as
nanopore biosensors, and highlighted the key technical and biological challenges involved in these
methods. We hope this paper will provide useful information for the selection and establishment of
analysis of DNA methylation.
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Affiliation(s)
- Shu Zhang
- Department of Basic Clinical Laboratory Medicine, School of Clinical Laboratory Science, Guizhou Medical University, No. 9 Beijing Road, Yunyan District, Guiyang 550004, China
| | - Jian Huang
- Department of Clinical and Military Laboratory Medicine, College of Medical Laboratory Science, Army Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Jingrun Lu
- Department of Basic Clinical Laboratory Medicine, School of Clinical Laboratory Science, Guizhou Medical University, No. 9 Beijing Road, Yunyan District, Guiyang 550004, China
| | - Min Liu
- Department of Basic Clinical Laboratory Medicine, School of Clinical Laboratory Science, Guizhou Medical University, No. 9 Beijing Road, Yunyan District, Guiyang 550004, China
| | - Xi Chen
- Department of Basic Clinical Laboratory Medicine, School of Clinical Laboratory Science, Guizhou Medical University, No. 9 Beijing Road, Yunyan District, Guiyang 550004, China
| | - Shasha Su
- Department of Basic Clinical Laboratory Medicine, School of Clinical Laboratory Science, Guizhou Medical University, No. 9 Beijing Road, Yunyan District, Guiyang 550004, China
| | - Fei Mo
- Department of Basic Clinical Laboratory Medicine, School of Clinical Laboratory Science, Guizhou Medical University, No. 9 Beijing Road, Yunyan District, Guiyang 550004, China
| | - Junsong Zheng
- Department of Clinical and Military Laboratory Medicine, College of Medical Laboratory Science, Army Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing 400038, China
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13
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Ouyang J, Zhan X, Guo S, Cai S, Lei J, Zeng S, Yu L. Progress and trends on the analysis of nucleic acid and its modification. J Pharm Biomed Anal 2020; 191:113589. [DOI: 10.1016/j.jpba.2020.113589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/18/2020] [Accepted: 08/20/2020] [Indexed: 12/17/2022]
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14
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Wang LJ, Han X, Qiu JG, Jiang B, Zhang CY. Cytosine-5 methylation-directed construction of a Au nanoparticle-based nanosensor for simultaneous detection of multiple DNA methyltransferases at the single-molecule level. Chem Sci 2020; 11:9675-9684. [PMID: 34094232 PMCID: PMC8161687 DOI: 10.1039/d0sc03240a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/25/2020] [Indexed: 12/28/2022] Open
Abstract
DNA methylation at cytosine/guanine dinucleotide islands (CpGIs) is the most prominent epigenetic modification in prokaryotic and eukaryotic genomes. DNA methyltransferases (MTases) are responsible for genomic methylation, and their aberrant activities are closely associated with various diseases including cancers. However, the specific and sensitive detection of multiple DNA MTases has remained a great challenge due to the specificity of the methylase substrate and the rareness of methylation-sensitive restriction endonuclease species. Here, we demonstrate for the first time the cytosine-5 methylation-directed construction of a Au nanoparticle (AuNP)-based nanosensor for simultaneous detection of multiple DNA MTases at the single-molecule level. We used the methyl-directed endonuclease GlaI to cleave the site-specific 5-methylcytosine (5-mC). In the presence of CpG and GpC MTases (i.e., M.SssI and M.CviPI), their hairpin substrates are methylated at cytosine-5 to form the catalytic substrates for GlaI, respectively, followed by simultaneous cleavage by GlaI to yield two capture probes. These two capture probes can hybridize with the Cy5/Cy3-signal probes which are assembled on the AuNPs, respectively, to form the double-stranded DNAs (dsDNAs). Each dsDNA with a guanine ribonucleotide can act as the catalytic substrate for ribonuclease (RNase HII), inducing recycling cleavage of signal probes to liberate large numbers of Cy5 and Cy3 molecules from the AuNPs. The released Cy5 and Cy3 molecules can be simply quantified by total internal reflection fluorescence (TIRF)-based single-molecule imaging for simultaneous measurement of M.SssI and M.CviPI MTase activities. This method exhibits good specificity and high sensitivity with a detection limit of 2.01 × 10-3 U mL-1 for M.SssI MTase and 3.39 × 10-3 U mL-1 for M.CviPI MTase, and it can be further applied for discriminating different kinds of DNA MTases, screening potential inhibitors, and measuring DNA MTase activities in human serum and cell lysate samples, holding great potential in biomedical research, clinical diagnosis, drug discovery and cancer therapeutics.
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Affiliation(s)
- Li-Juan Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University Jinan 250014 China
| | - Xiao Han
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University Jinan 250014 China
| | - Jian-Ge Qiu
- Academy of Medical Sciences, Zhengzhou University Zhengzhou 450000 China
| | - BingHua Jiang
- Academy of Medical Sciences, Zhengzhou University Zhengzhou 450000 China
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University Jinan 250014 China
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15
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Lu L, Liu C, Miao W, Wang X, Guo G. Ultrasensitive detection of miRNA based on efficient immobilization of probe and electrochemiluminescent quenching of Ru(bpy) 32+ by methylene blue. Anal Chim Acta 2019; 1093:52-60. [PMID: 31735215 DOI: 10.1016/j.aca.2019.09.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 09/27/2019] [Indexed: 11/20/2022]
Abstract
A high performance miRNA biosensor based on effective click chemistry assembly of a Ru(bpy)32+ labeled DNA probe and efficient electrochemiluminescence (ECL) quenching of the Ru(bpy)32+/BDEA (BDEA = N-butyldiethanolamine) system by surface-confined electroactive methylene blue (MB) dye is reported. When the target miRNA was present, the ECL signal instantly changed from "light off" to "light on" status. Using the specific miRNA let-7d as the target analyte, this biosensor provided sensitive detection over approximately six orders of magnitude (10 fM-10 nM), with a limit of detection of 10 fM (S/N = 3). Detailed study of the ECL quenching behavior of the Ru(bpy)32+/BDEA system by MB in solution suggested that the ECL quenching involves a combination of photoluminescence dynamic quenching and quenching processes directly associated with the redox reactions, as well as resonance energy transfer. A large binding constant of 4.7 × 1011 M-1 between let-7d and the DNA hairpin was estimated using an ECL-based extended Langmuir isotherm model, suggesting remarkably strong binding of the target to the probe. Furthermore, our biosensor exhibited excellent specificity and reproducibility. Using the developed system, the concentration of the target miRNA extracted from the A549 cell line could be obtained, demonstrating the potential application of the developed biosensor to practical biological sample analysis.
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Affiliation(s)
- Liping Lu
- College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China.
| | - Chang Liu
- College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Wujian Miao
- Department of Chemistry and Biochemistry, The University of Southern Mississippi, Hattiesburg, MS, 39406, USA.
| | - Xiayan Wang
- College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Guanghsheng Guo
- College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
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16
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Darabdhara G, Das MR, Singh SP, Rengan AK, Szunerits S, Boukherroub R. Ag and Au nanoparticles/reduced graphene oxide composite materials: Synthesis and application in diagnostics and therapeutics. Adv Colloid Interface Sci 2019; 271:101991. [PMID: 31376639 DOI: 10.1016/j.cis.2019.101991] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 07/04/2019] [Accepted: 07/15/2019] [Indexed: 11/16/2022]
Abstract
The exceptional electrical, thermal, optical and mechanical properties have made two dimensional sp2 hybridized graphene a material of choice in both academic as well as industrial research. In the last few years, researchers have devoted their efforts towards the development of graphene/polymer, graphene/metal nanoparticle and graphene/ceramic nanocomposites. These materials display excellent mechanical, electrical, thermal, catalytic, magnetic and optical properties which cannot be obtained separately from the individual components. Fascinating physical and chemical properties are displayed by noble metal nanomaterials and thus they represent model building blocks for modifying nanoscale structures for diverse applications extending from catalysis, optics to nanomedicine. Insertion of noble metal (Au, Ag) nanoparticles (NPs) into chemically derived graphene is thus of primary importance to open new avenues for both materials in various fields where the specific properties of each material act synergistically to provide hybrid materials with exceptional performances. This review attempts to summarize the different synthetic procedures for the preparation of Ag and Au NPs/reduced graphene oxide (rGO) composites. The synthesis processes of metal NPs/rGO composites are categorised into in-situ and ex-situ techniques. The in-situ approach consists of simultaneous reduction of metal salts and GO to obtain metal NPs/rGO nanocomposite materials, while in the ex-situ process, the metal NPs of desired size and shape are first synthesized and then transferred onto the GO or rGO matrix. The application of the Ag NPs and Au NPs/rGO composite materials in the area of biomedical (drug delivery and photothermal therapy) and biosensing are the focus of this review article.
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Affiliation(s)
- Gitashree Darabdhara
- Advanced Materials Group, Materials Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India; Academy of Scientific and Innovative Research, CSIR-NEIST, Jorhat, India
| | - Manash R Das
- Advanced Materials Group, Materials Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India; Academy of Scientific and Innovative Research, CSIR-NEIST, Jorhat, India.
| | - Surya P Singh
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India
| | - Aravind K Rengan
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, Telangana, India.
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520, IEMN, F-59000 Lille, France
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520, IEMN, F-59000 Lille, France.
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17
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Khoshfetrat SM, Khoshsafar H, Afkhami A, Mehrgardi MA, Bagheri H. Enhanced Visual Wireless Electrochemiluminescence Immunosensing of Prostate-Specific Antigen Based on the Luminol Loaded into MIL-53(Fe)-NH2 Accelerator and Hydrogen Evolution Reaction Mediation. Anal Chem 2019; 91:6383-6390. [DOI: 10.1021/acs.analchem.9b01506] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Seyyed Mehdi Khoshfetrat
- Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, 14117-13137 Tehran, Iran
| | - Hosein Khoshsafar
- Research and Development Department, Farin Behbood Tashkhis LTD, 15489-13111 Tehran, Iran
| | - Abbas Afkhami
- Faculty of Chemistry, Bu-Ali Sina University, 65178-38695 Hamedan, Iran
| | | | - Hasan Bagheri
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, 14359-16471 Tehran, Iran
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18
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Cui YX, Feng XN, Wang YX, Pan HY, Pan H, Kong DM. An integrated-molecular-beacon based multiple exponential strand displacement amplification strategy for ultrasensitive detection of DNA methyltransferase activity. Chem Sci 2019; 10:2290-2297. [PMID: 30881654 PMCID: PMC6385671 DOI: 10.1039/c8sc05102j] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 12/19/2018] [Indexed: 12/16/2022] Open
Abstract
DNA methylation is a significant epigenetic mechanism involving processes of transferring a methyl group onto cytosine or adenine. Such DNA modification catalyzed by methyltransferase (MTase) plays important roles in the modulation of gene expression and other cellular activities. Herein, we develop a simple and sensitive biosensing platform for the detection of DNA MTase activity by using only two oligonucleotides. The fluorophore labeled molecular beacon (MB) can be methylated by MTase and subsequently cleaved by endonuclease DpnI at the stem, giving a shortened MB. The shortened MB can then hybridize with a primer DNA, initiating a cycle of strand displacement amplification (SDA) reactions. The obtained SDA products can unfold new MB and initiate another cycle of SDA reaction. Therefore, continuous enlargement of SDA and exponential amplification of the fluorescence signal are achieved. Because the triple functions of substrate, template and probe are elegantly integrated in one oligonucleotide, only two oligonucleotides are necessary for multiple amplification cycles, which not only reduces the complexity of the system, but also overcomes the laborious and cumbersome operation that is always a challenge in conventional methods. This platform exhibits an extremely low limit of detection of 3.3 × 10-6 U mL-1, which is the lowest to our knowledge. The proposed MTase-sensing platform was also demonstrated to perform well in a real-time monitoring mode, which can achieve a further simplified and high-throughput detection. The sensing strategy might be extended to the activity detection of other enzymes, thus showing great application potential in bioanalysis and clinical diagnosis.
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Affiliation(s)
- Yun-Xi Cui
- State Key Laboratory of Medicinal Chemical Biology , Tianjin Key Laboratory of Biosensing and Molecular Recognition , Research Centre for Analytical Sciences , College of Chemistry , Nankai University , Tianjin 300071 , P. R. China .
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin , 300071 , P. R. China
| | - Xue-Nan Feng
- State Key Laboratory of Medicinal Chemical Biology , Tianjin Key Laboratory of Biosensing and Molecular Recognition , Research Centre for Analytical Sciences , College of Chemistry , Nankai University , Tianjin 300071 , P. R. China .
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin , 300071 , P. R. China
| | - Ya-Xin Wang
- State Key Laboratory of Medicinal Chemical Biology , Tianjin Key Laboratory of Biosensing and Molecular Recognition , Research Centre for Analytical Sciences , College of Chemistry , Nankai University , Tianjin 300071 , P. R. China .
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin , 300071 , P. R. China
| | - Hui-Yu Pan
- State Key Laboratory of Medicinal Chemical Biology , Tianjin Key Laboratory of Biosensing and Molecular Recognition , Research Centre for Analytical Sciences , College of Chemistry , Nankai University , Tianjin 300071 , P. R. China .
| | - Hua Pan
- State Key Laboratory of Medicinal Chemical Biology , Tianjin Key Laboratory of Biosensing and Molecular Recognition , Research Centre for Analytical Sciences , College of Chemistry , Nankai University , Tianjin 300071 , P. R. China .
| | - De-Ming Kong
- State Key Laboratory of Medicinal Chemical Biology , Tianjin Key Laboratory of Biosensing and Molecular Recognition , Research Centre for Analytical Sciences , College of Chemistry , Nankai University , Tianjin 300071 , P. R. China .
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin , 300071 , P. R. China
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19
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Chen JQ, Yu LD, Zhang L, Liang RP, Cao SP, Qiu JD. Ultrasensitive detection of protein kinase activity based on the Au NPs mediated electrochemiluminescence amplification of S2O82−–O2 system. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2018.12.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Bhattacharjee R, Moriam S, Umer M, Nguyen NT, Shiddiky MJA. DNA methylation detection: recent developments in bisulfite free electrochemical and optical approaches. Analyst 2018; 143:4802-4818. [PMID: 30226502 DOI: 10.1039/c8an01348a] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
DNA methylation is one of the significant epigenetic modifications involved in mammalian development as well as in the initiation and progression of various diseases like cancer. Over the past few decades, an enormous amount of research has been carried out for the quantification of DNA methylation in the mammalian genome. Earlier, most of these methodologies used bisulfite treatment. However, the low conversion, false reading, longer assay time and complex chemical reaction are the common limitations of this method that hinder their application in routine clinical screening. Thus, as an alternative to bisulfite conversion-based DNA methylation detection, numerous bisulfite-free methods have been proposed. In this regard, electrochemical biosensors have gained much attention in recent years for being highly sensitive yet cost-effective, portable, and simple to operate. On the other hand, biosensors with optical readouts enable direct real time detection of biological molecules and are easily adaptable to multiplexing. Incorporation of electrochemical and optical readouts into bisulfite free DNA methylation analysis is paving the way for the translation of this important biomarker into standard patient care. In this review, we provide a critical overview of recent advances in the development of electrochemical and optical readout based bisulfite free DNA methylation assays.
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Affiliation(s)
- Ripon Bhattacharjee
- School of Environment and Science, Griffith University, Nathan Campus, Nathan, QLD 4111, Australia.
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21
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Silver nanoclusters-assisted triple-amplified biosensor for ultrasensitive methyltransferase activity detection based on AuNPs/ERGO hybrids and hybridization chain reaction. Biosens Bioelectron 2018; 118:174-180. [DOI: 10.1016/j.bios.2018.07.048] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 07/25/2018] [Accepted: 07/25/2018] [Indexed: 11/17/2022]
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22
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Khoshbin Z, Verdian A, Housaindokht MR, Izadyar M, Rouhbakhsh Z. Aptasensors as the future of antibiotics test kits-a case study of the aptamer application in the chloramphenicol detection. Biosens Bioelectron 2018; 122:263-283. [PMID: 30268964 DOI: 10.1016/j.bios.2018.09.060] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/08/2018] [Accepted: 09/16/2018] [Indexed: 12/31/2022]
Abstract
Antibiotics are a type of antimicrobial drug with the ubiquitous presence in foodstuff that effectively applied to treat the diseases and promote the animal growth worldwide. Chloramphenicol as one of the antibiotics with the broad action spectrum against Gram-positive and Gram-negative bacteria is widely applied for the effective treatment of infectious diseases in humans and animals. Unfortunately, the serious side effects of chloramphenicol, such as aplastic anemia, kidney damage, nausea, and diarrhea restrict its application in foodstuff and biomedical fields. Development of the sufficiently sensitive methods to detect chloramphenicol residues in food and clinical diagnosis seems to be an essential demand. Biosensors have been introduced as the promising tools to overcome the requirement. As one of the newest types of the biosensors, aptamer-based biosensors (aptasensors) are the efficient sensing platforms for the chloramphenicol monitoring. In the present review, we summarize the recent achievements of the accessible aptasensors for qualitative detection and quantitative determination of chloramphenicol as a candidate of the antibiotics. The present chloramphenicol aptasensors can be classified in two main optical and electrochemical categories. Also, the other formats of the aptasensing assays like the high performance liquid chromatography (HPLC) and microchip electrophoresis (MCE) have been reviewed. The enormous interest in utilizing the diverse nanomaterials is also highlighted in the fabrication of the chloramphenicol aptasensors. Finally, some results are presented based on the advantages and disadvantages of the studied aptasensors to achieve a promising perspective for designing the novel antibiotics test kits.
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Affiliation(s)
- Zahra Khoshbin
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Asma Verdian
- Department of food safety and quality control, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran.
| | | | - Mohammad Izadyar
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Zeinab Rouhbakhsh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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23
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A Current Overview of the Biological and Cellular Effects of Nanosilver. Int J Mol Sci 2018; 19:ijms19072030. [PMID: 30002330 PMCID: PMC6073671 DOI: 10.3390/ijms19072030] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 07/03/2018] [Accepted: 07/09/2018] [Indexed: 02/07/2023] Open
Abstract
Nanosilver plays an important role in nanoscience and nanotechnology, and is becoming increasingly used for applications in nanomedicine. Nanosilver ranges from 1 to 100 nanometers in diameter. Smaller particles more readily enter cells and interact with the cellular components. The exposure dose, particle size, coating, and aggregation state of the nanosilver, as well as the cell type or organism on which it is tested, are all large determining factors on the effect and potential toxicity of nanosilver. A high exposure dose to nanosilver alters the cellular stress responses and initiates cascades of signalling that can eventually trigger organelle autophagy and apoptosis. This review summarizes the current knowledge of the effects of nanosilver on cellular metabolic function and response to stress. Both the causative effects of nanosilver on oxidative stress, endoplasmic reticulum stress, and hypoxic stress—as well as the effects of nanosilver on the responses to such stresses—are outlined. The interactions and effects of nanosilver on cellular uptake, oxidative stress (reactive oxygen species), inflammation, hypoxic response, mitochondrial function, endoplasmic reticulum (ER) function and the unfolded protein response, autophagy and apoptosis, angiogenesis, epigenetics, genotoxicity, and cancer development and tumorigenesis—as well as other pathway alterations—are examined in this review.
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24
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Kermani HA, Hosseini M, Miti A, Dadmehr M, Zuccheri G, Hosseinkhani S, Ganjali MR. A colorimetric assay of DNA methyltransferase activity based on peroxidase mimicking of DNA template Ag/Pt bimetallic nanoclusters. Anal Bioanal Chem 2018; 410:4943-4952. [DOI: 10.1007/s00216-018-1143-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/07/2018] [Accepted: 05/14/2018] [Indexed: 01/31/2023]
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25
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Wang LJ, Han X, Li CC, Zhang CY. Single-ribonucleotide repair-mediated ligation-dependent cycling signal amplification for sensitive and specific detection of DNA methyltransferase. Chem Sci 2018; 9:6053-6061. [PMID: 30079218 PMCID: PMC6053742 DOI: 10.1039/c8sc02215a] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 06/17/2018] [Indexed: 01/09/2023] Open
Abstract
Specific and sensitive detection of DNA MTase activity can be achieved by a single-ribonucleotide repair-mediated ligation-dependent cycling signal amplification approach.
DNA methylation is a predominant epigenetic modification that plays crucial roles in various cellular processes. DNA methyltransferase (MTase) is responsible for DNA methylation, and its dysregulation may induce aberrant methylation patterns that are closely related to cancers. Conventional methods for DNA MTase assay are usually cumbersome and laborious with poor sensitivity. Alternatively, some signal amplification strategies are employed to improve the sensitivity, but they suffer from poor specificity and consequently limited sensitivity due to the nonspecific amplification. Herein, we develop for the first time a new fluorescence method to specifically and sensitively detect DNA MTase activity on the basis of single-ribonucleotide repair-mediated ligation-dependent cycling signal amplification. In the presence of DNA MTase, the hairpin substrate is methylated and cleaved by endonuclease Dpn I, releasing a 24-nt cleavage product. The 24-nt cleavage product may function as a primer and adjacently hybridize with the ligation probes (LP1 and LP2) to form the template (LP1–LP2) for strand displacement amplification (SDA), initiating the single-ribonucleotide repair-mediated cyclic ligation-dependent SDA to produce a large number of reporter probes. The reporter probe can subsequently hybridize with the signal probe that is modified with FAM and BHQ1 to form a stable double-stranded DNA (dsDNA) duplex with a ribonucleotide mismatch. Ribonuclease HII (RNase HII) can excise the single ribonucleotide, resulting in the cyclic cleavage of signal probes and the generation of an enhanced fluorescence signal. Taking advantage of the high specificity of RNase HII-catalyzed single-ribonucleotide excision and the high amplification efficiency of cyclic ligation-dependent SDA, this assay exhibits the highest sensitivity reported so far with a detection limit of 4.8 × 10–6 U mL–1 and a large dynamic range of 5 orders of magnitude. Moreover, this method can be used for the discrimination of Dam MTase from other DNA MTases, the accurate quantification of Dam MTase activity in E. coli cells, and the screening of Dam MTase inhibitors, providing a new paradigm for biomedical research and clinical diagnosis.
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Affiliation(s)
- Li-Juan Wang
- College of Chemistry , Chemical Engineering and Materials Science , Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong , Key Laboratory of Molecular and Nano Probes , Ministry of Education , Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals , Shandong Normal University , Jinan 250014 , China . ; ; Tel: +86 531 86186033
| | - Xiao Han
- College of Chemistry , Chemical Engineering and Materials Science , Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong , Key Laboratory of Molecular and Nano Probes , Ministry of Education , Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals , Shandong Normal University , Jinan 250014 , China . ; ; Tel: +86 531 86186033
| | - Chen-Chen Li
- College of Chemistry , Chemical Engineering and Materials Science , Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong , Key Laboratory of Molecular and Nano Probes , Ministry of Education , Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals , Shandong Normal University , Jinan 250014 , China . ; ; Tel: +86 531 86186033
| | - Chun-Yang Zhang
- College of Chemistry , Chemical Engineering and Materials Science , Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong , Key Laboratory of Molecular and Nano Probes , Ministry of Education , Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals , Shandong Normal University , Jinan 250014 , China . ; ; Tel: +86 531 86186033
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26
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Sensitive determination of bromhexine hydrochloride based on its quenching effect on luminol/H2
O2
electrochemiluminescence system. LUMINESCENCE 2018; 33:698-703. [DOI: 10.1002/bio.3466] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 01/08/2018] [Accepted: 01/16/2018] [Indexed: 01/10/2023]
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27
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Chen S, Lv Y, Shen Y, Ji J, Zhou Q, Liu S, Zhang Y. Highly Sensitive and Quality Self-Testable Electrochemiluminescence Assay of DNA Methyltransferase Activity Using Multifunctional Sandwich-Assembled Carbon Nitride Nanosheets. ACS APPLIED MATERIALS & INTERFACES 2018; 10:6887-6894. [PMID: 29376630 DOI: 10.1021/acsami.7b17813] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
DNA methylation catalyzed by methylase plays a key role in many biological activities. However, developing a highly sensitive, simple, and reliable way for evaluation of DNA methyltransferase (MTase) activity is still a challenge. Here, we report a sandwich-assembled electrochemiluminescence (ECL) biosensor using multifunctional carbon nitride nanosheets (CNNS) to evaluate the Dam MTase activity. The CNNS could not only be used as an excellent substrate to conjugate a large amount of hairpin probe DNA to improve the sensitivity but also be utilized as an internal reliability checker and an analyte reporter in the bottom and top layers of the biosensor, respectively. Such a unique sandwich configuration of CNNS well coupled the advantages of ECL luminophor that were generally assembled in the bottom or top layer in a conventional manner. As a result, the biosensor exhibited an ultralow detection limit down to 0.043 U/mL and a linear range between 0.05 and 80 U/mL, superior to the MTase activity assay in most previous reports. We highlighted the great potential of emerging CNNS luminophor in developing highly sensitive and smart quality self-testable ECL sensing systems using a sandwiched configuration for early disease diagnosis, treatment, and management.
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Affiliation(s)
- Shiyu Chen
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University , Nanjing 211189, China
| | - Yanqin Lv
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University , Nanjing 211189, China
| | - Yanfei Shen
- Medical School, Southeast University , Nanjing 210009, China
| | - Jingjing Ji
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University , Nanjing 211189, China
| | - Qing Zhou
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University , Nanjing 211189, China
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University , Nanjing 211189, China
| | - Yuanjian Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research, School of Chemistry and Chemical Engineering, Southeast University , Nanjing 211189, China
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28
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Liu Y, Hu Y, Wang S, Guo Z, Hu Y. A Novel Surface-tethered Analysis Method for Mercury (II) ion Detection via Self-assembly of Individual Electrochemiluminescence Signal Units. ELECTROANAL 2018. [DOI: 10.1002/elan.201700660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yuan Liu
- Faculty of Materials Science and Chemical Engineering, State Key Laboratory Base of Novel Functional Materials and Preparation Science; Ningbo University; Ningbo 315211 People's Republic of China
| | - Yunxia Hu
- Faculty of Materials Science and Chemical Engineering, State Key Laboratory Base of Novel Functional Materials and Preparation Science; Ningbo University; Ningbo 315211 People's Republic of China
| | - Sui Wang
- Faculty of Materials Science and Chemical Engineering, State Key Laboratory Base of Novel Functional Materials and Preparation Science; Ningbo University; Ningbo 315211 People's Republic of China
| | - Zhiyong Guo
- Faculty of Materials Science and Chemical Engineering, State Key Laboratory Base of Novel Functional Materials and Preparation Science; Ningbo University; Ningbo 315211 People's Republic of China
| | - Yufang Hu
- Faculty of Materials Science and Chemical Engineering, State Key Laboratory Base of Novel Functional Materials and Preparation Science; Ningbo University; Ningbo 315211 People's Republic of China
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29
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Thermal and mechanical properties of graphene oxide nanocomposite hydrogel based on poly (acrylic acid) grafted onto amylose. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2017.11.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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30
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Chen JY, Cao SR, Xi CX, Chen Y, Li XL, Zhang L, Wang GM, Chen YL, Chen ZQ. A novel magnetic β-cyclodextrin modified graphene oxide adsorbent with high recognition capability for 5 plant growth regulators. Food Chem 2018; 239:911-919. [DOI: 10.1016/j.foodchem.2017.07.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 06/28/2017] [Accepted: 07/03/2017] [Indexed: 11/17/2022]
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31
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Zhu X, Zhai Q, Gu W, Li J, Wang E. High-Sensitivity Electrochemiluminescence Probe with Molybdenum Carbides as Nanocarriers for α-Fetoprotein Sensing. Anal Chem 2017; 89:12108-12114. [DOI: 10.1021/acs.analchem.7b02701] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xiaoqing Zhu
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Qingfeng Zhai
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- University of the Chinese Academy of Sciences, Beijing, 100039, P. R. China
| | - Wenling Gu
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- University of the Chinese Academy of Sciences, Beijing, 100039, P. R. China
| | - Jing Li
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
| | - Erkang Wang
- State
Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
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32
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Visual electrochemiluminescence biosensing of aflatoxin M1 based on luminol-functionalized, silver nanoparticle-decorated graphene oxide. Biosens Bioelectron 2017; 100:382-388. [PMID: 28950248 DOI: 10.1016/j.bios.2017.09.035] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/11/2017] [Accepted: 09/18/2017] [Indexed: 02/06/2023]
Abstract
A sensitive electrochemiluminescence (ECL) aptasensor for aflatoxin M1 (AFM1) detection by a closed bipolar electrode (BPE) array has been introduced. The thiolated AFM1 aptamer was immobilized on gold nanoparticle-coated magnetic Fe3O4 nanoparticles (Apt-GMNPs). Luminol-functionalized silver nanoparticle-decorated graphene oxide (GO-L-AgNPs) participates in π-π interactions with the unpaired bases of the immobilized aptamer (Apt-GMNPs-GO-L-AgNPs). After the Apt-GMNPs-GO-L-AgNPs were introduced to a gold anodic BPE array, the individual electrodes were subjected to different concentrations of AFM1. Upon the interaction of AFM1 with the aptamers, the GO-L-AgNPs detach from the aptamer; the resulting ECL of luminol and H2O2 at the anodic poles is monitored using a photomultiplier tube (PMT) or smartphone, and the images are analyzed using ImageJ software. This process triggers thionine reduction at the cathodic poles. Under the optimal conditions obtained by a face-centered central composite design (FCCD), the PMT-based detection of the BPE-ECL aptasensor exhibit a linear response over a wide dynamic range from 5 to 150ngmL-1, with a detection limit of 0.01ngmL-1. Additionally, smartphone-based detection shows a linear relationship between the ECL image gray value and the logarithmic concentration of the AFM1 target over a range of 10-200ngmL-1, with a detection limit of 0.05ngmL-1. Furthermore, the BPE-ECL aptasensor was successfully used to detect AFM1 in milk complex media without any serious interferences with reliable reproducibility (average relative standard deviation (RSD = 2.3%)). This smartphone-based detection opens a new horizon for bioanalysis that does not require a trained technician to operate and is a promising technology for point-of-care testing.
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33
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Zhu S, Lin X, Ran P, Mo F, Xia Q, Fu Y. A glassy carbon electrode modified with C-dots and silver nanoparticles for enzymatic electrochemiluminescent detection of glutamate enantiomers. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2515-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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34
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Optical biosensing strategies for DNA methylation analysis. Biosens Bioelectron 2017; 92:668-678. [DOI: 10.1016/j.bios.2016.10.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 10/05/2016] [Accepted: 10/18/2016] [Indexed: 11/23/2022]
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35
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Cui C, Chen Y, Jiang D, Zhu JJ, Chen HY. Attomole Antigen Detection Using Self-Electrochemiluminous Graphene Oxide-Capped Au@L012 Nanocomposite. Anal Chem 2017; 89:2418-2423. [DOI: 10.1021/acs.analchem.6b04305] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Chen Cui
- State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Ying Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Dechen Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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36
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Tailoring chemically converted graphenes using a water-soluble pyrene derivative with a zwitterionic arm for sensitive electrochemiluminescence-based analyses. Biosens Bioelectron 2017; 87:89-95. [DOI: 10.1016/j.bios.2016.08.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 08/03/2016] [Accepted: 08/05/2016] [Indexed: 11/17/2022]
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37
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Lin KL, Yang T, Zhang FF, Lei G, Zou HY, Li YF, Huang CZ. Luminol and gold nanoparticle-co-precipitated reduced graphene oxide hybrids with long-persistent chemiluminescence for cholesterol detection. J Mater Chem B 2017; 5:7335-7341. [DOI: 10.1039/c7tb01607g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Luminol and AuNP dual-functionalized rGO hybrids (rGO/AuNP/luminol) have been synthesized to generate long-persistent chemiluminescence, which can be used as a chemiluminescent biosensing platform for the detection of cholesterol.
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Affiliation(s)
- Ke Li Lin
- Education Ministry Key Laboratory on Luminescence and Real-Time Analytical Chemistry
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Tong Yang
- Chongqing Key Laboratory of Biomedical Analysis (Southwest University)
- Chongqing Science & Technology Commission
- College of Pharmaceutical Sciences
- Southwest University
- Chongqing 400716
| | - Fang Fang Zhang
- Education Ministry Key Laboratory on Luminescence and Real-Time Analytical Chemistry
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Gang Lei
- Chongqing Key Laboratory of Biomedical Analysis (Southwest University)
- Chongqing Science & Technology Commission
- College of Pharmaceutical Sciences
- Southwest University
- Chongqing 400716
| | - Hong Yan Zou
- Chongqing Key Laboratory of Biomedical Analysis (Southwest University)
- Chongqing Science & Technology Commission
- College of Pharmaceutical Sciences
- Southwest University
- Chongqing 400716
| | - Yuan Fang Li
- Education Ministry Key Laboratory on Luminescence and Real-Time Analytical Chemistry
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Cheng Zhi Huang
- Education Ministry Key Laboratory on Luminescence and Real-Time Analytical Chemistry
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
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38
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Affiliation(s)
- Lingling Li
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Ying Chen
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical
Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
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39
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Zhang H, Yang Y, Dong H, Cai C. A superstructure-based electrochemical assay for signal-amplified detection of DNA methyltransferase activity. Biosens Bioelectron 2016; 86:927-932. [DOI: 10.1016/j.bios.2016.07.103] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/11/2016] [Accepted: 07/28/2016] [Indexed: 12/12/2022]
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40
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Abstract
In the field of genetics, epigenetics is the study of changes in gene expression without any change in DNA sequences. Chemical base modification in DNA by DNA methyltransferase, and specifically methylation, has been well studied as the main mechanism of epigenetics. Therefore, the determination of DNA methylation of, for example, 5'-methylcytosine in the CpG sequence in mammals has attracted attention because it should prove valuable in a wide range of research fields including diagnosis, drug discovery, and therapy. Methylated DNA bases and DNA methyltransferase activity are analyzed using conventional methods; however, these methods are time-consuming and require complex multiple operations. Therefore, new methods and devices for DNA methylation analysis are now being actively developed. Furthermore, microfluidic technology has also been applied to DNA methylation analysis because the microfluidic platform offers the promising advantage of making it possible to perform thousands of DNA methylation reactions in small reaction volumes, resulting in a high-throughput analysis with high sensitivity. This review discusses epigenetics and the microfluidic platforms developed for DNA methylation analysis.
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Affiliation(s)
- Ryoji Kurita
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST) and DAILAB, Tsukuba Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8566 Japan.
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41
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Zhang L, Liu Y, Li Y, Zhao Y, Wei W, Liu S. Sensitive electrochemical assaying of DNA methyltransferase activity based on mimic-hybridization chain reaction amplified strategy. Anal Chim Acta 2016; 933:75-81. [DOI: 10.1016/j.aca.2016.05.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 05/16/2016] [Accepted: 05/23/2016] [Indexed: 11/29/2022]
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42
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A triple-amplification SPR electrochemiluminescence assay for chloramphenicol based on polymer enzyme-linked nanotracers and exonuclease-assisted target recycling. Biosens Bioelectron 2016; 86:477-483. [PMID: 27434234 DOI: 10.1016/j.bios.2016.07.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/29/2016] [Accepted: 07/04/2016] [Indexed: 11/23/2022]
Abstract
The present study aimed to explore a novel triple-amplification electrochemiluminescence (ECL) assay for detecting of chloramphenicol (CAP). This strategy was based on single-stranded DNA-binding protein (SSB) and horseradish peroxidase (HRP) enzyme-linked polymer (EnVision reagent, EV) labeled on Au nanoparticles (EV-Au-SSB) as nanotracer and exonuclease-assisted target recycling. The composite probes were prepared via immunoreactions between the CdS nanocrystal (CdS NC)-functionalized partial complementary DNA and aptamer (CdSNCs/Apt-ssDNA1) as capture probes, and EV-Au-SSB as nanotracer. When the composite probe solution co-existed with CAP and Exo I, the aptamer on the capture probes preferentially combined with CAP, and then CAP-Apt and nanotracer complex were released into the solution. Subsequently, Exo I in the solution could further digest the CAP-Apt from the 3'-end of the aptamer and release CAP, which could participate in further reaction with the probes. It was worth mentioning that EV contained a large number of HRPs on its dendritic chain. In the EV-Au-SSB, Au could enhance ECL intensity of CdS NCs by surface plasmon resonance. What's more, HRPs on EV could catalyze the reaction of H2O2, which could obviously enhance ECL intensity of CdS NCs. This study demonstrated excellent performance of the triple-amplification ECL assay, which makes this aptasensor system suitable and promising for the practical application of CAP residues in fish samples. Moreover, the assay might provide a promising avenue to develop efficient aptasensors to determine small-molecule harmful substances in environmental monitoring and food safety.
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43
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DNA methyltransferase detection based on digestion triggering the combination of poly adenine DNA with gold nanoparticles. Biosens Bioelectron 2016; 80:74-78. [DOI: 10.1016/j.bios.2015.12.100] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 12/27/2015] [Accepted: 12/28/2015] [Indexed: 01/29/2023]
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44
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Afsharan H, Navaeipour F, Khalilzadeh B, Tajalli H, Mollabashi M, Ahar MJ, Rashidi MR. Highly sensitive electrochemiluminescence detection of p53 protein using functionalized Ru–silica nanoporous@gold nanocomposite. Biosens Bioelectron 2016; 80:146-153. [DOI: 10.1016/j.bios.2016.01.030] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 01/10/2016] [Accepted: 01/11/2016] [Indexed: 12/22/2022]
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45
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Liu P, Zhang K, Zhang R, Yin H, Zhou Y, Ai S. A colorimetric assay of DNA methyltransferase activity based on the keypad lock of duplex DNA modified meso-SiO2@Fe3O4. Anal Chim Acta 2016; 920:80-5. [DOI: 10.1016/j.aca.2016.03.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 03/08/2016] [Accepted: 03/14/2016] [Indexed: 10/22/2022]
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46
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Jiang D, Du X, Liu Q, Zhou L, Dai L, Qian J, Wang K. Silver nanoparticles anchored on nitrogen-doped graphene as a novel electrochemical biosensing platform with enhanced sensitivity for aptamer-based pesticide assay. Analyst 2016; 140:6404-11. [PMID: 26252168 DOI: 10.1039/c5an01084e] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silver nanoparticles (NPs) decorated nitrogen doped graphene (NG) nanocomposites were prepared through a one-step thermal-treatment route using arginine as the nitrogen source. By integrating the excellent electrical properties and large surface area of Ag NPs and NG, the obtained Ag/NG nanocomposites show more effective electron transfer and high loading capacity than Ag-graphene and pure NG. In the presence of a target, the stronger interaction between the aptamer and the target promotes the formation of a target-aptamer complex on the electrode surface which blocks the electron transfer. Based on this sensing mechanism, a novel and highly sensitive biosensing platform by the use of Ag/NG as enhancing materials is demonstrated for detection of the model target, acetamiprid. The presented aptasensor exhibited a wide linear response for acetamiprid in the range of 1 × 10(-13) M to 5 × 10(-9) M with a low detection limit of 3.3 × 10(-14) M (S/N = 3). Moreover, this electrochemical aptasensor avoided complicated labeling procedures and showed magnificent sensitivity, high selectivity and low cost, which made it not only convenient but also time-saving and applicable. Furthermore, the proposed design may offer a promising way to develop a new electrochemical aptasensor for sensitive and specific detection of a wide spectrum of analytes in food, medical and environmental fields.
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Affiliation(s)
- Ding Jiang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, P.R. China
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47
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Xiang MH, Liu JW, Li N, Tang H, Yu RQ, Jiang JH. A fluorescent graphitic carbon nitride nanosheet biosensor for highly sensitive, label-free detection of alkaline phosphatase. NANOSCALE 2016; 8:4727-32. [PMID: 26856374 DOI: 10.1039/c5nr08278a] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Graphitic C3N4 (g-C3N4) nanosheets provide an attractive option for bioprobes and bioimaging applications. Utilizing highly fluorescent and water-dispersible ultrathin g-C3N4 nanosheets, a highly sensitive, selective and label-free biosensor has been developed for ALP detection for the first time. The developed approach utilizes a natural substrate of ALP in biological systems and thus affords very high catalytic efficiency. This novel biosensor is demonstrated to enable quantitative analysis of ALP in a wide range from 0.1 to 1000 U L(-1) with a low detection limit of 0.08 U L(-1), which is among the most sensitive assays for ALP. It is expected that the developed method may provide a low-cost, convenient, rapid and highly sensitive platform for ALP-based clinical diagnostics and biomedical applications.
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Affiliation(s)
- Mei-Hao Xiang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
| | - Jin-Wen Liu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
| | - Na Li
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
| | - Hao Tang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
| | - Ru-Qin Yu
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
| | - Jian-Hui Jiang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.
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48
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Poh WJ, Wee CPP, Gao Z. DNA Methyltransferase Activity Assays: Advances and Challenges. Am J Cancer Res 2016; 6:369-91. [PMID: 26909112 PMCID: PMC4737724 DOI: 10.7150/thno.13438] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 10/12/2015] [Indexed: 12/28/2022] Open
Abstract
DNA methyltransferases (MTases), a family of enzymes that catalyse the methylation of DNA, have a profound effect on gene regulation. A large body of evidence has indicated that DNA MTase is potentially a predictive biomarker closely associated with genetic disorders and genetic diseases like cancer. Given the attention bestowed onto DNA MTases in molecular biology and medicine, highly sensitive detection of DNA MTase activity is essential in determining gene regulation, epigenetic modification, clinical diagnosis and therapeutics. Conventional techniques such as isotope labelling are effective, but they often require laborious sample preparation, isotope labelling, sophisticated equipment and large amounts of DNA, rendering them unsuitable for uses at point-of-care. Simple, portable, highly sensitive and low-cost assays are urgently needed for DNA MTase activity screening. In most recent technological advances, many alternative DNA MTase activity assays such as fluorescent, electrochemical, colorimetric and chemiluminescent assays have been proposed. In addition, many of them are coupled with nanomaterials and/or enzymes to significantly enhance their sensitivity. Herein we review the progress in the development of DNA MTase activity assays with an emphasis on assay mechanism and performance with some discussion on challenges and perspectives. It is hoped that this article will provide a broad coverage of DNA MTase activity assays and their latest developments and open new perspectives toward the development of DNA MTase activity assays with much improved performance for uses in molecular biology and clinical practice.
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49
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Lv X, Ma H, Wu D, Yan T, Ji L, Liu Y, Pang X, Du B, Wei Q. Novel gold nanocluster electrochemiluminescence immunosensors based on nanoporous NiGd–Ni2O3–Gd2O3 alloys. Biosens Bioelectron 2016; 75:142-7. [DOI: 10.1016/j.bios.2015.08.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 08/17/2015] [Accepted: 08/18/2015] [Indexed: 11/26/2022]
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50
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Zhao H, Yin H, Yang Y. Label-free electrochemical detection of DNA methyltransferase activity via a DNA tetrahedron-structured probe. RSC Adv 2016. [DOI: 10.1039/c6ra01845a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Label-free electrochemical detection of DNA methyltransferase activityviaDNA tetrahedron-structured probe.
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Affiliation(s)
- Hongyu Zhao
- The Second Hospital of Nanjing
- Affiliated to Medical School of Southeast University
- Nanjing
- China
| | - Hai Yin
- Chinese People's Liberation Army 454 Hospital
- Nanjing
- China
| | - Yongfeng Yang
- The Second Hospital of Nanjing
- Affiliated to Medical School of Southeast University
- Nanjing
- China
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