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Zhang Z, Li J, Chen C, Tong Y, Liu D, Li C, Lu H, Huang L, Feng W, Sun X. Exploring T7 RNA polymerase-assisted CRISPR/Cas13a amplification for the detection of BNP via electrochemiluminescence sensing platform. Anal Chim Acta 2024; 1300:342409. [PMID: 38521567 DOI: 10.1016/j.aca.2024.342409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/25/2024] [Accepted: 02/23/2024] [Indexed: 03/25/2024]
Abstract
Brain natriuretic peptide (BNP) is considered to be an important biomarker of heart failure (HF) attracting attention. However, its low concentration and short half-life in blood lead to a low-sensitivity detection of BNP, which is a challenge that has to be overcome. In this work, we propose a highly specific, highly sensitive T7 RNA polymerase-assisted clustered regularly interspaced short palindromic repeats (CRISPR)/Cas13a system to detect BNP via an electrochemiluminescence (ECL) sensing platform and incorporate exonuclease III (Exo III)-hairpin and dumbbell-shaped hybridization chain reaction (HCR) technologies. In this detection scheme, the ECL sensing platform possesses low background signal and high sensitivity. Firstly, the T7 promoter-initiated T7 RNA polymerase acts as a signal amplification technique to generate large amounts of RNAs that can activate CRISPR/Cas13a activity. Secondly, CRISPR/Cas13a is able to trans-cleave the surrounding trigger strand to produce DNA1. Thirdly, DNA1 is involved in the co-amplification reaction of Exo III and hairpin DNA, which subsequently triggers a dumbbell-shaped HCR technology. Eventually, a large number of Ru (II) molecules are inserted into the interstitial space of the dumbbell-shaped HCR to generate a strong ECL signal. The CRISPR/Cas13a possesses outstanding specificity for a single base and increased sensitivity. The tightly conformed dumbbell-shaped HCR provides higher sensitivity than the traditional linear HCR amplification technique. Ultimately, the clever combination of several amplification reactions enables the limit of detection (LOD) as low as 3.2 fg/mL. It showed promise for clinical sample testing, with recovery rates ranging from 98.4% to 103% in 5% human serum samples. This detection method offered a valuable tool for early HF detection, emphasizing the synergy of amplification strategies and specificity conferred by CRISPR/Cas13a technology.
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Affiliation(s)
- Zaiyong Zhang
- Department of Cardiology, Guangzhou Eighth People's Hospital Guangzhou Medical University, Guangzhou, 510440, PR China
| | - Jinglong Li
- Department of Cardiology, Guangzhou Eighth People's Hospital Guangzhou Medical University, Guangzhou, 510440, PR China
| | - Chunlin Chen
- Department of Cardiology, Guangzhou Eighth People's Hospital Guangzhou Medical University, Guangzhou, 510440, PR China
| | - Yuwei Tong
- Department of Cardiology, Guangzhou Eighth People's Hospital Guangzhou Medical University, Guangzhou, 510440, PR China
| | - Dehui Liu
- Department of Cardiology, Guangzhou Eighth People's Hospital Guangzhou Medical University, Guangzhou, 510440, PR China
| | - Cuizhi Li
- Department of Cardiology, Guangzhou Eighth People's Hospital Guangzhou Medical University, Guangzhou, 510440, PR China
| | - Huan Lu
- Department of Cardiology, Guangzhou Eighth People's Hospital Guangzhou Medical University, Guangzhou, 510440, PR China.
| | - Li Huang
- Department of Cardiology, Guangzhou Eighth People's Hospital Guangzhou Medical University, Guangzhou, 510440, PR China
| | - Wanling Feng
- Department of Cardiology, Guangzhou Eighth People's Hospital Guangzhou Medical University, Guangzhou, 510440, PR China
| | - Xiaoting Sun
- Department of Cardiology, Guangzhou Eighth People's Hospital Guangzhou Medical University, Guangzhou, 510440, PR China
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Zou R, Cao L, Wu N, Chang G, Li L, Xiao L, Yan H, Li H, Wang P, Bao T, Zhang X, Wang S, Wang Y, He H. Transistor-based immunosensor using AuNPs-Ab2-HRP enzyme nanoprobe for the detection of antigen biomarker in human blood. Anal Bioanal Chem 2024; 416:163-173. [PMID: 37930375 DOI: 10.1007/s00216-023-05002-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 11/07/2023]
Abstract
Alpha-fetoprotein (AFP) is inextricably linked to various diseases, including liver cancer. Thus, detecting the content of AFP in biology has great significance in diagnosis, treatment, and intervention. Motivated by the urgent need for affordable and convenient electronic sensors in the analysis and detection of aqueous biological samples, we combined the solution-gated graphene transistor (SGGT) with the catalytic reaction of enzyme nanoprobes (HRP-AuNPs-Ab2) to accurately sense AFP. The SGGT immunosensor demonstrated high specificity and stability, excellent selectivity, and excessive linearity over a range of 4 ng/mL to 500 ng/mL, with the lower detection limit down to 1.03 ng/mL. Finally, clinical samples were successfully detected by the SGGT immunosensor, and the results were consistent with chemiluminescence methods that are popular in hospitals for detecting AFP. Notably, the SGGT immunosensor is also recyclable, so it has excellent potential for use in high-throughput detection.
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Affiliation(s)
- Rong Zou
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, Hubei, China
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, Hubei, China
| | - Lei Cao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, Hubei, China
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, Hubei, China
| | - Nan Wu
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, Hubei, China
| | - Gang Chang
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, College of Materials Science and Engineering, Hubei University, Wuhan, 430062, China
| | - Li Li
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, Hubei, China
| | - Lu Xiao
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, Hubei, China
| | - Huiling Yan
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, Hubei, China
| | - Hongjie Li
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, Hubei, China
| | - Ping Wang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, Hubei, China.
| | - Ting Bao
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, Hubei, China
| | - Xiuhua Zhang
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, Hubei, China
| | - Shengfu Wang
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, Hubei, China
| | - Yaping Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, Hubei, China.
| | - Hanping He
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, 430062, Hubei, China.
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, Hubei, China.
- College of Health Science and Engineering, Hubei University, Wuhan, 430062, Hubei, China.
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Chen B, Zhang H, Wang H, Li S, Zhou P. Development and application of a dual ERA method for the detection of Feline Calicivirus and Feline Herpesvirus Type I. Virol J 2023; 20:62. [PMID: 37020252 PMCID: PMC10077619 DOI: 10.1186/s12985-023-02020-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 03/23/2023] [Indexed: 04/07/2023] Open
Abstract
Feline calicivirus (FCV) and feline herpesvirus type I (FHV-1) are the most common viral pathogens responsible for cat respiratory diseases, and coinfection with these two pathogens is often found. In veterinary clinics, the main diagnostic methods for FCV and FHV-1 are test strips and polymerase chain reaction (PCR). However, the sensitivity of test strips are not sufficient, and PCR is time-consuming. Therefore, developing a rapid and high-performance clinical diagnostic test is imperative for the prevention and treatment of these diseases. Enzymatic recombinase amplification (ERA) is an automated isothermal nucleic acid amplification technique that maintains a constant temperature, and is both rapid and highly accurate. In this study, a dual ERA method was developed using the Exo probe for a differential detection of FCV and FHV-1. This dual ERA method demonstrated high performance with the detection limit of 101 copies for both viruses, and no cross-reactions with feline parvovirus virus and F81 cells. To test the utility of the method for clinical applications, 50 nasopharyngeal swabs from cats with respiratory symptoms were collected and tested. The positive rates of FCV and FHV-1 were 40% (20/50, 95% confidence interval [CI], 26.4 to 54.8%) and 14% (7/50, 95% CI, 5.8 to 26.7%), respectively. The rate of coinfection with FCV and FHV-1 was 10% (5/50, 95% CI, 3.3 to 21.8%). These results were in agreement with those found using quantitative real-time PCR. Therefore, this dual ERA method is a novel and efficient clinical diagnostic tool for FCV and FHV-1 detection.
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Affiliation(s)
- Bo Chen
- Guangdong Provincial Pet Engineering Technology Research Center, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong Province, People's Republic of China
| | - Haoyang Zhang
- Guangdong Provincial Pet Engineering Technology Research Center, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong Province, People's Republic of China
| | - Hanhong Wang
- Guangdong Provincial Pet Engineering Technology Research Center, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong Province, People's Republic of China
| | - Shoujun Li
- Guangdong Provincial Pet Engineering Technology Research Center, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong Province, People's Republic of China
| | - Pei Zhou
- Guangdong Provincial Pet Engineering Technology Research Center, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong Province, People's Republic of China.
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, Guangdong Province, People's Republic of China.
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Sahoo SR, Huey-Jen Hsu S, Chou DA, Wang GJ, Chang CC. Surface plasmon-enhanced fluorescence and surface-enhanced Raman scattering dual-readout chip constructed with silver nanowires: Label-free clinical detection of direct-bilirubin. Biosens Bioelectron 2022; 213:114440. [PMID: 35667289 DOI: 10.1016/j.bios.2022.114440] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/27/2022] [Accepted: 05/29/2022] [Indexed: 11/30/2022]
Abstract
It has been found that the direct/total bilirubin ratio (D/T-BIL) is related to the survival rate of COVID-19 pneumonia. The presence of an excessive amount of bilirubin in human blood also causes liver and neurological damage, leading to death. Therefore, upon considering the adverse impact of the presence of excessive bilirubin in human blood, it has become highly imperative to detect bilirubin in a fast and label-free manner. Herein, we designed and constructed a random-crossed-woodpile nanostructure from silver nanowires to form a 3-dimensional plasmonic hotspot-rich (3D-PHS) nanostructure and successfully used it to detect direct bilirubin (D-BIL) in human blood in a label-free manner. The 3D-PHS nanochip provides rich spatial hot spots that are simultaneously responsive to SERS and SPEF effects and consequently, successfully used to measure and characterize D-BIL with a detection limit of ∼10 nM, requiring only 10μL of human serum for rapid screening, which is the first time D-BIL has been detected in a clinically relevant range. This demonstrates a simple, label-free, pretreatment-free potential biosensing technology that can be used in health care units, and further, in the efficient detection of point-of-care testing with a portable spectrometer.
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Affiliation(s)
- Smruti R Sahoo
- Intelligent Minimally-Invasive Device Center, National Chung Hsing University, Taichung, 40227, Taiwan; Department of Mechanical Engineering, National Chung-Hsing University, Taichung, 40227, Taiwan
| | - Sandy Huey-Jen Hsu
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, 10002, Taiwan
| | - Dev-Aur Chou
- Department of General Surgery, Changhua Show Chwan Memorial Hospital, Changhua, 50544, Taiwan
| | - Gou-Jen Wang
- Department of Mechanical Engineering, National Chung-Hsing University, Taichung, 40227, Taiwan; Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung, 40227, Taiwan.
| | - Cheng-Chung Chang
- Intelligent Minimally-Invasive Device Center, National Chung Hsing University, Taichung, 40227, Taiwan; Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung, 40227, Taiwan.
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Abstract
In this study, we reported the design of a quartz crystal microbalance (QCM) sensors for selective insulin detection. In the first step, N-methacryloyl-(L) 3-histidine methyl ester (MAH) monomer was formed a complex with insulin. Then, 2-hydroxyethyl methacrylate and ethylene glycol dimethacrylate were mixed with MAH:insulin complex. Insulin-imprinted and non-imprinted QCM sensors were synthesized by ultraviolet polymerization for the insulin detection. Insulin-imprinted QCM sensors was characterized by the contact angle measurements, atomic force microscopy and ellipsometry. Limit of detection (LOD) was found as 0.00158 ng/mL for the insulin-imprinted QCM sensors. Selectivity of insulin-imprinted and non-imprinted QCM sensors was carried in the presence of glucagon and aprotinin. Insulin-imprinted QCM sensor for insulin detection was also examined in the artificial plasma.
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Affiliation(s)
- Duygu Çimen
- Department of Chemistry, Hacettepe University, Ankara, Turkey
| | - Nilay Bereli
- Department of Chemistry, Hacettepe University, Ankara, Turkey
| | - Fatma Kartal
- Department of Chemistry, Hacettepe University, Ankara, Turkey
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara, Turkey.
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Zhou Y, Tariq M, He S, Abdullah U, Zhang J, Baig SM. Whole exome sequencing identified mutations causing hearing loss in five consanguineous Pakistani families. BMC Med Genet 2020; 21:151. [PMID: 32682410 PMCID: PMC7368710 DOI: 10.1186/s12881-020-01087-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 07/06/2020] [Indexed: 12/20/2022]
Abstract
Background Hearing loss is the most common sensory defect, and it affects over 6% of the population worldwide. Approximately 50–60% of hearing loss patients are attributed to genetic causes. Currently, more than 100 genes have been reported to cause non-syndromic hearing loss. It is possible and efficient to screen all potential disease-causing genes for hereditary hearing loss by whole exome sequencing (WES). Methods We collected 5 consanguineous pedigrees from Pakistan with hearing loss and applied WES in selected patients for each pedigree, followed by bioinformatics analysis and Sanger validation to identify the causal genes. Results Variants in 7 genes were identified and validated in these pedigrees. We identified single candidate variant for 3 pedigrees: GIPC3 (c.937 T > C), LOXHD1 (c.6136G > A) and TMPRSS3 (c.941 T > C). The remaining 2 pedigrees each contained two candidate variants: TECTA (c.4045G > A) and MYO15A (c.3310G > T and c.9913G > C) for one pedigree and DFNB59 (c.494G > A) and TRIOBP (c.1952C > T) for the other pedigree. The candidate variants were validated in all available samples by Sanger sequencing. Conclusion The candidate variants in hearing-loss genes were validated to be co-segregated in the pedigrees, and they may indicate the aetiologies of hearing loss in such patients. We also suggest that WES may be a suitable strategy for hearing-loss gene screening in clinical detection.
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Affiliation(s)
- Yingjie Zhou
- Seven Section of Department of Gynaecology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Muhammad Tariq
- Human Molecular Genetics, Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) College, PIEAS, Faisalabad, 38000, Pakistan
| | - Sijie He
- BGI-Shenzhen, Shenzhen, 518083, China.,BGI Genomics, BGI-Shenzhen, Shenzhen, 518083, China
| | - Uzma Abdullah
- Human Molecular Genetics, Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) College, PIEAS, Faisalabad, 38000, Pakistan
| | - Jianguo Zhang
- BGI-Shenzhen, Shenzhen, 518083, China. .,BGI Genomics, BGI-Shenzhen, Shenzhen, 518083, China.
| | - Shahid Mahmood Baig
- Human Molecular Genetics, Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) College, PIEAS, Faisalabad, 38000, Pakistan.
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Zhang X, Yao M, Tang Z, Xu D, Luo Y, Gao Y, Yan L. Development and application of a triplex real-time PCR assay for simultaneous detection of avian influenza virus, Newcastle disease virus, and duck Tembusu virus. BMC Vet Res 2020; 16:203. [PMID: 32560692 PMCID: PMC7304117 DOI: 10.1186/s12917-020-02399-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 06/01/2020] [Indexed: 11/10/2022] Open
Abstract
Background Pathogens including duck-origin avian influenza virus (AIV), duck-origin Newcastle disease virus (NDV) and duck Tembusu virus (DTMUV) posed great harm to ducks and caused great economic losses to the duck industry. In this study, we aim to develop a triplex real-time polymerase chain reaction (PCR) assay to detect these three viruses as early as possible in the suspicious duck flocks. Results The detection limit of the triplex real-time PCR for AIV, NDV, and DTMUV was 1 × 101 copies/μL, which was at least 10 times higher than the conventional PCR. In addition, the triplex assay was highly specific, and won’t cross-react with other duck pathogens. Besides, the intra-day relative standard deviation and inter-day relative standard deviation were lower than 4.44% for these viruses at three different concentrations. Finally, a total of 120 clinical samples were evaluated by the triplex real-time PCR, the conventional PCR and virus isolation, and the positive rates for these three methods were 20.83, 21.67, 19.17%, respectively. Taking virus isolation as the gold standard, the diagnostic specificity and positive predictive value of the three viruses were all above 85%, while the diagnostic sensitivity and negative predictive value of the three viruses were all 100%. Conclusion The developed triplex real-time PCR is fast, specific and sensitive, and is feasible and effective for the simultaneous detection of AIV, NDV, and DTMUV in ducks.
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Affiliation(s)
- Xiyu Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China.,MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ming Yao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhihui Tang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Daning Xu
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Zhongkai University of Agricultural and Engineering, Guangzhou, 510225, China
| | - Yan Luo
- Administration for Market Regulation of Guangdong Province Key Laboratory of Supervision for Edible Agricultural Products, Shenzhen Centre of Inspection and Testing for Agricultural Products, Shenzhen, 518000, China
| | - Yunfei Gao
- Jofunhwa Biotechnology (Nanjing) Co., Ltd, Nanjing, 211102, China
| | - Liping Yan
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China. .,MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing, 210095, China.
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Shoaie N, Daneshpour M, Azimzadeh M, Mahshid S, Khoshfetrat SM, Jahanpeyma F, Gholaminejad A, Omidfar K, Foruzandeh M. Electrochemical sensors and biosensors based on the use of polyaniline and its nanocomposites: a review on recent advances. Mikrochim Acta 2019; 186:465. [PMID: 31236681 DOI: 10.1007/s00604-019-3588-1] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 06/06/2019] [Indexed: 12/12/2022]
Abstract
Polyaniline and its composites with nanoparticles have been widely used in electrochemical sensor and biosensors due to their attractive properties and the option of tuning them by proper choice of materials. The review (with 191 references) describes the progress made in the recent years in polyaniline-based biosensors and their applications in clinical sensing, food quality control, and environmental monitoring. A first section summarizes the features of using polyaniline in biosensing systems. A subsequent section covers sensors for clinical applications (with subsections on the detection of cancer cells and bacteria, and sensing of glucose, uric acid, and cholesterol). Further sections discuss sensors for use in the food industry (such as for sulfite, phenolic compounds, acrylamide), and in environmental monitoring (mainly pesticides and heavy metal ions). A concluding section summarizes the current state, highlights some of the challenges currently compromising performance in biosensors and nanobiosensors, and discusses potential future directions. Graphical abstract Schematic presentation of electrochemical sensor and biosensors applications based on polyaniline/nanoparticles in various fields of human life including medicine, food industry, and environmental monitoring. The simultaneous use of suitable properties polyaniline and nanoparticles can provide the fabrication of sensing systems with high sensitivity, short response time, high signal/noise ratio, low detection limit, and wide linear range by improving conductivity and the large surface area for biomolecules immobilization.
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Affiliation(s)
- Nahid Shoaie
- Department of Biotechnology, Tarbiat Modares University of Medical Science, P.O. Box 14115-111, Tehran, Iran
| | - Maryam Daneshpour
- Biotechnology Department, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, P.O. Box: 1985717443, Iran
| | - Mostafa Azimzadeh
- Medical Nanotechnology & Tissue Engineering Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, PO Box: 89195-999, Yazd, Iran.,Stem Cell Biology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, P.O. Box: 89195-999, Iran.,Department of Advanced Medical Sciences and Technologies, School of Paramedicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sara Mahshid
- Department of Bioengineering, McGill University, Montreal, Quebec, P.O. Box: H3A 0E9, Canada
| | - Seyyed Mehdi Khoshfetrat
- Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Science, Tehran, P.O. Box:1411713137, Iran.,Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Jahanpeyma
- Department of Biotechnology, Tarbiat Modares University of Medical Science, P.O. Box 14115-111, Tehran, Iran
| | - Alieh Gholaminejad
- Department of Biotechnology, Tarbiat Modares University of Medical Science, P.O. Box 14115-111, Tehran, Iran
| | - Kobra Omidfar
- Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Science, Tehran, P.O. Box:1411713137, Iran. .,Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mehdi Foruzandeh
- Department of Biotechnology, Tarbiat Modares University of Medical Science, P.O. Box 14115-111, Tehran, Iran.
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Yao M, Zhang X, Gao Y, Song S, Xu D, Yan L. Development and application of multiplex PCR method for simultaneous detection of seven viruses in ducks. BMC Vet Res 2019; 15:103. [PMID: 30935399 PMCID: PMC6444421 DOI: 10.1186/s12917-019-1820-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 02/25/2019] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Major viruses, including duck-origin avian influenza virus, duck-origin Newcastle disease virus, novel duck parvovirus, duck hepatitis A virus, duck Tembusu virus, fowl adenovirus, and duck enteritis virus, pose great harm to ducks and cause enormous economic losses to duck industry. This study aims to establish a multiplex polymerase chain reaction (m-PCR) method for simultaneous detection of these seven viruses. RESULTS Specific primers were designed and synthesized according to the conserved region of seven viral gene sequences. Then, seven recombinant plasmids, as the positive controls, were reconstructed in this study. Within the study, D-optimal design was adopted to optimize PCR parameters. The optimum parameters for m-PCR were annealing temperature at 57 °C, Mg2+ concentration at 4 mM, Taq DNA polymerase concentration at 0.05 U/μL, and dNTP concentration at 0.32 mM. With these optimal parameters, the m-PCR method produced neither cross-reactions among these seven viruses nor nonspecific reactions with other common waterfowl pathogens. The detection limit of m-PCR for each virus was 1 × 104 viral DNA copies/μL. In addition, the m-PCR method could detect a combination of several random viruses in co-infection analysis. Finally, the m-PCR method was successfully applied to clinical samples, and the detection results were consistent with uniplex PCR. CONCLUSION Given its rapidity, specificity, sensitivity, and convenience, the established m-PCR method is feasible for simultaneous detection of seven duck-infecting viruses and can be applied to clinical diagnosis of viral infection in ducks.
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Affiliation(s)
- Ming Yao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiyu Zhang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yunfei Gao
- Nanjing Tianbang Bio-Industry co., LTD, Nanjing, 211102, China
| | - Suquan Song
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Danning Xu
- Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Zhongkai University of Agricultural and Engineering, Guangzhou, 510225, China.
| | - Liping Yan
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China. .,Jiangsu Detection Center of Terrestrial Wildlife Disease, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.
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Zhang W, Foss K, Wang BY. A retrospective study on molar furcation assessment via clinical detection, intraoral radiography and cone beam computed tomography. BMC Oral Health 2018; 18:75. [PMID: 29724208 PMCID: PMC5934848 DOI: 10.1186/s12903-018-0544-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/27/2018] [Indexed: 11/29/2022] Open
Abstract
Background Accurate determination of bone loss at the molar furcation region by clinical detection and intraoral radiograph is challenging in many instances. Cone beam computed tomography (CBCT) is expected to open a new horizon in periodontal assessment. The purpose of this study was to compare and correlate accuracy of molar furcation assessment via clinical detection, intraoral radiography and CBCT images. Methods Eighty-three patients with chronic periodontitis who had existing CBCT scans were included. Furcation involvement was assessed on maxillary and mandibular first molars. Periodontal charts (modified Glickman’s classification), intraoral (periapical and/or bitewing) radiographs (recorded as presence or absence) and axial CBCT reconstructions were used to evaluate furcation involvement on buccal and palatal/lingual sites. The correlation of furcation assessment by the three methods was evaluated by Pearson analysis. Results There were significant correlations (p < 0.05) between clinical detection and intraoral radiography, clinical detection and CBCT, as well as intraoral radiography and CBCT at all the measured sites (r values range between 0.230 to 0.644). CBCT generally exhibited higher correlation with clinical detection relative to intraoral radiography, especially at distal palatal side of maxillary first molar (p < 0.05). In addition, CBCT provided more accurate assessment, with bone loss measurement up to 2 decimals in millimeters, whereas clinical detection had 3 classes and the intraoral radiographs usually only detected the presence of furcation involvement in Glickman Class 2 and 3. Conclusions This study validates that CBCT is a valuable tool in molar furcation assessment in addition to clinical detection and intraoral radiography.
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Affiliation(s)
- Wenjian Zhang
- Department of Diagnostic & Biomedical Sciences, University of Texas School of Dentistry at Houston, 7500 Cambridge Street, Houston, TX, 77054, USA.
| | - Keagan Foss
- University of Texas School of Dentistry at Houston, 7500 Cambridge Street, Houston, TX, 77054, USA
| | - Bing-Yan Wang
- Department of Periodontics & Dental Hygiene, University of Texas School of Dentistry at Houston, 7500 Cambridge Street, Houston, TX, 77054, USA
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