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Wang X, Zhang R, Ma X, Xu Z, Ma M, Zhang T, Ma Y, Shi F. Carbon dots@noble metal nanoparticle composites: research progress report. Analyst 2024; 149:665-688. [PMID: 38205593 DOI: 10.1039/d3an01580g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Carbon dots@noble metal nanoparticle composites are formed by combining carbon dots and metal nanoparticles using various strategies. Carbon dots exhibit a reducing ability and function as stabilisers; consequently, metal-ion solutions can be directly reduced by them to synthesise gold, silver, and gold-silver alloy particles. Carbon dots@gold/silver/gold-silver particle composites have demonstrated the potential for several practical applications owing to their superior properties and simple preparation process. Until now, several review articles have been published to summarise fluorescent carbon dots or noble metal nanomaterials. Compared with metal-free carbon dots, carbon dots@noble metal nanoparticles have a unique morphology and structure, resulting in new physicochemical properties, which allow for sensing, bioimaging, and bacteriostasis applications. Therefore, to promote the effective development of carbon dots@noble metal nanoparticle composites, this paper primarily reviews carbon dots@gold/silver/gold-silver alloy nanoparticle composites for the first time in terms of the following aspects. (1) The synthesis strategies of carbon dots@noble metal nanoparticle composites are outlined. The principle and function of carbon dots in the synthesis strategies are examined. The advantages and disadvantages of these methods and composites are analysed. (2) The characteristics and properties of such composites are described. (3) The applications of these composite materials are summarised. Finally, the potentials and limitations of carbon dots@noble metal nanoparticle composites are discussed, thus laying the foundation for their further development.
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Affiliation(s)
- Xuejing Wang
- College of Life Sciences, Shihezi University, Shihezi 832003, China.
| | - Renyin Zhang
- College of Life Sciences, Shihezi University, Shihezi 832003, China.
| | - Xiaoyu Ma
- College of Life Sciences, Shihezi University, Shihezi 832003, China.
| | - Zhihua Xu
- College of Life Sciences, Shihezi University, Shihezi 832003, China.
| | - Mingze Ma
- College of Life Sciences, Shihezi University, Shihezi 832003, China.
| | - Tieying Zhang
- College of Life Sciences, Shihezi University, Shihezi 832003, China.
| | - Yu Ma
- College of Life Sciences, Shihezi University, Shihezi 832003, China.
| | - Feng Shi
- College of Life Sciences, Shihezi University, Shihezi 832003, China.
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2
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Jing H, Li X, Xu L, Gao L, Lin X, Zhang M, Wang N, Liu X, Wu S. Development of a Colloidal Gold Immunochromatographic Strip for the Rapid Detection of Channel Catfish Virus. J AOAC Int 2021; 104:1350-1354. [PMID: 33787893 DOI: 10.1093/jaoacint/qsaa152] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 11/13/2022]
Abstract
BACKGROUND Channel catfish virus disease (CCVD) has resulted in great economic losses and has restricted the development of fisheries. There is therefore, a need for rapid and efficient diagnostic methods to control the spread of CCVD. OBJECTIVE A colloidal gold immunochromatographic strip has been developed for the detection of CCVD. METHODS In this study, a colloidal gold immunochromatographic strip for channel catfish virus (CCV) detection was developed using the monoclonal antibody 8B6 conjugated with colloidal gold as the detector antibody. A rabbit anti-CCV antibody was used as the capture complex at the test line, and a goat anti-mouse IgG antibody was used as the capture antibody at the control line. The strip was characterized in its specificity, sensitivity, and stability. In addition, an infection experiment was performed to test the applicability of the test strip. RESULT The strip was able to detect concentrations of the virus (104 tissue culture infective dose (TCID50)/mL) and showed analytical specificity when tested against other viral pathogens. The strips were still usable after 30 days of storage at 60°C. It was possible to detect CCV experimentally in infected fish within 10-15 min of using the strip. CONCLUSIONS The strip can be used as a rapid and convenient tool for on-site diagnosis to control outbreaks and the spread of CCVD. HIGHLIGHTS The immunochromatographic strip was the first to be developed and applied for the detection of CCVD.
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Affiliation(s)
- Hongli Jing
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Xiaolin Li
- Baoding Animal Disease Prevention and Control Center, Baoding, Hebei, 071000, China
| | - Lipu Xu
- Beijing Aquatic Product Technology Promotion Department, Beijing, 100176, China
| | - Longying Gao
- Shenzhen Customs District P.R. China, Shenzhen, 518026, China
| | - Xiangmei Lin
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Min Zhang
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Na Wang
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Xiaofei Liu
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Shaoqiang Wu
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
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Syahruni S, Hartati YW, Yusuf M, Kusumawardani S, Wibawan IWT, Arnafia W, Sibit G, Subroto T. Development of lateral flow assay based on anti-IBDV IgY for the rapid detection of Gumboro disease in poultry. J Virol Methods 2021; 291:114065. [PMID: 33577956 DOI: 10.1016/j.jviromet.2021.114065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 01/11/2021] [Accepted: 01/11/2021] [Indexed: 02/07/2023]
Abstract
The poultry industry faces serious problems against infectious diseases, including Gumboro, which is caused by contagious bursal disease virus (IBDV). IBDV infects the bursa of Fabricius (BF), a lymphoid organ for controlling the B-cell maturation. Thus, it can trigger the secondary infection's vulnerability, leading to the high mortality and morbidity of the chicken. Moreover, managing the Gumboro post-outbreaks also requires considerable time and costs. Besides vaccination programs, the early detection of IBDV is vital as an outbreak control strategy. The most popular diagnostic tool is a lateral flow immunoassay or a rapid test that meets ASSURED (Affordable, Sensitive, Specific, User-friendly, Rapid and Robust, Equipment-free, and Deliverable to end-users) criteria. In this study, the lateral flow immunoassay was successfully developed based on anti-IBDV IgY as the bio receptor. Anti-IBDV IgY was successfully isolated from Isa Brown's egg yolk. The detection system showed an acceptable affinity against the inactivated IBDV sample (1.5 × 103 TCID50). In addition, it did not react with avian influenza and Newcastle disease viruses, demonstrating a good specificity of the test.
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Affiliation(s)
- Sari Syahruni
- Master of Biotechnology Program, School of Postgraduates, Universitas Padjadjaran, Jl. Dipati Ukur 35, Bandung, West Java, 40132 Indonesia
| | - Yeni Wahyuni Hartati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km 21, Jatinangor, Sumedang, West Java, 45363 Indonesia; Research Center for Molecular Biotechnology and Bioinformatics, Universitas Padjadjaran, Jl. Singaperbangsa 2, Bandung,West Java, 40132 Indonesia
| | - Muhammad Yusuf
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km 21, Jatinangor, Sumedang, West Java, 45363 Indonesia; Research Center for Molecular Biotechnology and Bioinformatics, Universitas Padjadjaran, Jl. Singaperbangsa 2, Bandung,West Java, 40132 Indonesia
| | - Shinta Kusumawardani
- Research Center for Molecular Biotechnology and Bioinformatics, Universitas Padjadjaran, Jl. Singaperbangsa 2, Bandung,West Java, 40132 Indonesia
| | - I Wayan Teguh Wibawan
- Department of Animal Infectious Diseases and Veterinary Public Health, IPB University, Jl. Raya Dramaga, Bogor, West Java, 16680 Indonesia
| | - Wyanda Arnafia
- Research and Development Division, PT. Tekad Mandiri Citra, Jl. Mekar Raya Kav. 9, Bandung, West Java, 40292 Indonesia
| | - Gowinda Sibit
- Research and Development Division, PT. Tekad Mandiri Citra, Jl. Mekar Raya Kav. 9, Bandung, West Java, 40292 Indonesia
| | - Toto Subroto
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km 21, Jatinangor, Sumedang, West Java, 45363 Indonesia; Research Center for Molecular Biotechnology and Bioinformatics, Universitas Padjadjaran, Jl. Singaperbangsa 2, Bandung,West Java, 40132 Indonesia.
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4
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Pong YH, Su YR, Lo HW, Ho CK, Hsieh CC, Chu CT, Chen-Yang YW, Tsai VFS, Wu JC, Wu GJ. METCAM/MUC18 is a new early diagnostic biomarker for the malignant potential of prostate cancer: Validation with Western blot method, enzyme-linked immunosorbent assay and lateral flow immunoassay. Cancer Biomark 2020; 27:377-387. [PMID: 31958077 DOI: 10.3233/cbm-191001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND METCAM/MUC18 expression was increased with the malignant progression of prostate cancer and also a bona fide metastatic gene, capable of initiating and driving the metastasis of a non-metastatic human prostate cancer cell line to multiple organs. OBJECTIVE We explored if METCAM/MUC18 was detectable in human serum and a novel biomarker to predict malignant propensity of prostate cancer. MATERIALS AND METHODS Two antibodies were identified by Western blot analysis having the highest sensitivity and specificity to establish calibration curves from the recombinant METCAM/MUC18 proteins. They were used in ELISA and LFIA to determine the METCAM/MUC18 concentrations in serum samples from 8 normal individuals, 4 BPH patients, 1 with PIN, 6 with high-grade prostate cancer, and 2 treated cancer patients. RESULTS Serum METCAM/MUC18 concentrations were statistically significantly higher in the patients with PIN and prostate cancer than those with BPH, the treated patients and normal individuals. The LFIA results were statistically better than ELISA and Western blot methods. Serum METCAM/MUC18 concentrations were in direct proportional to most of serum PSA concentrations.
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Affiliation(s)
- Yuan-Hung Pong
- Department of Urology, Ten Chan General Hospital, Chung-li, Taoyuan, Taiwan.,Department of Urology, Ten Chen General Hospital, Yang-mei, Taoyuan, Taiwan.,Department of Urology, Ten Chan General Hospital, Chung-li, Taoyuan, Taiwan
| | - Yann-Rong Su
- Department of Urology, National Taiwan University Hospital Hsin-Chu Branch, Hsin Chu, Taiwan.,Department of Urology, Ten Chan General Hospital, Chung-li, Taoyuan, Taiwan
| | - Hsing-Wen Lo
- Biochemical Engineering Laboratory, Department of Chemical Engineering, Chung Yuan Christian University, Chung-Li, Taoyuan, Taiwan
| | - Chung-Kun Ho
- Biochemical Engineering Laboratory, Department of Chemical Engineering, Chung Yuan Christian University, Chung-Li, Taoyuan, Taiwan
| | - Chia-Chi Hsieh
- Biochemical Engineering Laboratory, Department of Chemical Engineering, Chung Yuan Christian University, Chung-Li, Taoyuan, Taiwan
| | - Ching-Tung Chu
- Cancer Metastasis Laboratory, Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li, Taoyuan, Taiwan
| | - Yui Whei Chen-Yang
- Department of Chemistry, Chung Yuan Christian University, Chung-Li, Taoyuan, Taiwan
| | - Vincent F S Tsai
- Department of Urology, Ten Chan General Hospital, Chung-li, Taoyuan, Taiwan.,Department of Urology, Ten Chen General Hospital, Yang-mei, Taoyuan, Taiwan
| | - Jui-Chuang Wu
- Biochemical Engineering Laboratory, Department of Chemical Engineering, Chung Yuan Christian University, Chung-Li, Taoyuan, Taiwan.,Research Center for Circular Economy, Chung Yuan Christian University, Chung-Li, Taoyuan, Taiwan
| | - Guang-Jer Wu
- Cancer Metastasis Laboratory, Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li, Taoyuan, Taiwan.,Molecular Biology of Cancer Metastasis Laboratory, Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA, USA
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5
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Teepoo S, Wongtongdee U, Phapugrangkul P. Development of qualitative and quantitative immunochromatographic strip test assay for rapid and simple detection of leucomalachite green residual in aquatic animals. Food Chem 2020; 320:126613. [PMID: 32203833 DOI: 10.1016/j.foodchem.2020.126613] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 01/30/2020] [Accepted: 03/13/2020] [Indexed: 12/11/2022]
Abstract
A rapid and simple immunochromatographic strip test assay based on competitive format was developed for leucomalachite green (LMG) detection. LMG-bovine serum albumin and rabbit anti-sheep IgG were immobilized on nitrocellulose membrane for the test line and control line, respectively. Anti-LMG-colloidal gold conjugate was immobilized onto the conjugate pad. For qualitative detection, the cut-off limit of the strip test was determined at 2 µg/L by the naked eye. For quantitative analysis, the working range of the LMG detection was 0.7-2 µg/L with LOD at 0.28 µg/L. A one-step immunochromatographic strip test for LMG detection can be completed within 5 min without any incubation, washing and blocking steps. Analysis results of LMG in aquatic animals obtained from the immunochromatographic strip test were in good agreement with those realized from enzyme-link immunosorbent assay. The developed the immunochromatographic strip test offered rapid detection as a simple (one-step), cost-effective, instrument-free assay and no need for handling reagents.
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Affiliation(s)
- Siriwan Teepoo
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Thanyaburi, Pathum Thani 12110, Thailand.
| | - Uraiwan Wongtongdee
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Thanyaburi, Pathum Thani 12110, Thailand
| | - Pongsathon Phapugrangkul
- Thailand Institute of Scientific and Technological Research, Khlong Luang, Pathum Thani, 12120, Thailand
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6
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Liu Z, Xiao X, Wei X, Li J, Yang J, Tan H, Zhu J, Zhang Q, Wu J, Liu L. Composition and divergence of coronavirus spike proteins and host ACE2 receptors predict potential intermediate hosts of SARS-CoV-2. J Med Virol 2020; 92:595-601. [PMID: 32100877 PMCID: PMC7228221 DOI: 10.1002/jmv.25726] [Citation(s) in RCA: 421] [Impact Index Per Article: 105.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 02/24/2020] [Indexed: 11/12/2022]
Abstract
From the beginning of 2002 and 2012, severe respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome coronavirus (MERS-CoV) crossed the species barriers to infect humans, causing thousands of infections and hundreds of deaths, respectively. Currently, a novel coronavirus (SARS-CoV-2), which has become the cause of the outbreak of Coronavirus Disease 2019 (COVID-19), was discovered. Until 18 February 2020, there were 72 533 confirmed COVID-19 cases (including 10 644 severe cases) and 1872 deaths in China. SARS-CoV-2 is spreading among the public and causing substantial burden due to its human-to-human transmission. However, the intermediate host of SARS-CoV-2 is still unclear. Finding the possible intermediate host of SARS-CoV-2 is imperative to prevent further spread of the epidemic. In this study, we used systematic comparison and analysis to predict the interaction between the receptor-binding domain (RBD) of coronavirus spike protein and the host receptor, angiotensin-converting enzyme 2 (ACE2). The interaction between the key amino acids of S protein RBD and ACE2 indicated that, other than pangolins and snakes, as previously suggested, turtles (Chrysemys picta bellii, Chelonia mydas, and Pelodiscus sinensis) may act as the potential intermediate hosts transmitting SARS-CoV-2 to humans.
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MESH Headings
- Amino Acid Sequence
- Angiotensin-Converting Enzyme 2
- Animals
- Betacoronavirus/classification
- Betacoronavirus/genetics
- Betacoronavirus/pathogenicity
- Binding Sites
- COVID-19
- China/epidemiology
- Chiroptera/virology
- Coronavirus Infections/epidemiology
- Coronavirus Infections/transmission
- Coronavirus Infections/virology
- Eutheria/virology
- Humans
- Models, Molecular
- Pandemics
- Peptidyl-Dipeptidase A/chemistry
- Peptidyl-Dipeptidase A/genetics
- Peptidyl-Dipeptidase A/metabolism
- Phylogeny
- Pneumonia, Viral/epidemiology
- Pneumonia, Viral/transmission
- Pneumonia, Viral/virology
- Protein Binding
- Protein Conformation, alpha-Helical
- Protein Conformation, beta-Strand
- Protein Interaction Domains and Motifs
- Protein Interaction Mapping
- Receptors, Virus/chemistry
- Receptors, Virus/genetics
- Receptors, Virus/metabolism
- SARS-CoV-2
- Sequence Alignment
- Sequence Homology, Amino Acid
- Snakes/virology
- Spike Glycoprotein, Coronavirus/chemistry
- Spike Glycoprotein, Coronavirus/classification
- Spike Glycoprotein, Coronavirus/genetics
- Spike Glycoprotein, Coronavirus/metabolism
- Turtles/virology
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Affiliation(s)
- Zhixin Liu
- Department of Respiratory, Department of Infectious Diseases, School of Basic Medical Sciences, Renmin HospitalHubei University of MedicineShiyanChina
- State Key Laboratory of Virology and College of Life SciencesWuhan UniversityWuhanChina
| | - Xiao Xiao
- Department of Respiratory, Department of Infectious Diseases, School of Basic Medical Sciences, Renmin HospitalHubei University of MedicineShiyanChina
| | - Xiuli Wei
- Department of Respiratory, Department of Infectious Diseases, School of Basic Medical Sciences, Renmin HospitalHubei University of MedicineShiyanChina
| | - Jian Li
- Department of Respiratory, Department of Infectious Diseases, School of Basic Medical Sciences, Renmin HospitalHubei University of MedicineShiyanChina
| | - Jing Yang
- Department of Respiratory, Department of Infectious Diseases, School of Basic Medical Sciences, Renmin HospitalHubei University of MedicineShiyanChina
| | - Huabing Tan
- Department of Respiratory, Department of Infectious Diseases, School of Basic Medical Sciences, Renmin HospitalHubei University of MedicineShiyanChina
| | - Jianyong Zhu
- Department of Respiratory, Department of Infectious Diseases, School of Basic Medical Sciences, Renmin HospitalHubei University of MedicineShiyanChina
| | - Qiwei Zhang
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical MicrobiologyJinan UniversityGuangzhouChina
- School of Public HealthSouthern Medical UniversityGuangzhouChina
| | - Jianguo Wu
- State Key Laboratory of Virology and College of Life SciencesWuhan UniversityWuhanChina
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical MicrobiologyJinan UniversityGuangzhouChina
| | - Long Liu
- Department of Respiratory, Department of Infectious Diseases, School of Basic Medical Sciences, Renmin HospitalHubei University of MedicineShiyanChina
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7
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Pereira EPV, van Tilburg MF, Florean EOPT, Guedes MIF. Egg yolk antibodies (IgY) and their applications in human and veterinary health: A review. Int Immunopharmacol 2019; 73:293-303. [PMID: 31128529 PMCID: PMC7106195 DOI: 10.1016/j.intimp.2019.05.015] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/06/2019] [Accepted: 05/09/2019] [Indexed: 12/16/2022]
Abstract
Egg yolk constitutes a relevant alternative source of antibodies. It presents some advantages over mammalian serum immunoglobulins regarding productivity, animal welfare and specificity. The main immunoglobulin present in avian blood (IgY) is transmitted to their offspring and accumulates in egg yolks, which enables the non-invasive harvesting of high amounts of antibodies. Moreover, due to structural differences and phylogenetic distance, IgY is more suitable for diagnostic purposes than mammalian antibodies, since it does not react with certain components of the human immune system and displays greater avidity for mammalian conserved proteins. IgY has been extensively used in health researches, as both therapeutic and diagnostic tool. This article aims to review its applications in both human and veterinary health.
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Affiliation(s)
- E P V Pereira
- Laboratory of Biotechnology and Molecular Biology - LBBM, Ceará State University, Brazil.
| | - M F van Tilburg
- Laboratory of Biotechnology and Molecular Biology - LBBM, Ceará State University, Brazil
| | - E O P T Florean
- Laboratory of Biotechnology and Molecular Biology - LBBM, Ceará State University, Brazil
| | - M I F Guedes
- Laboratory of Biotechnology and Molecular Biology - LBBM, Ceará State University, Brazil
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8
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Novel Immune Microlens Imaging for Detection of Antigen and Antibody. J Immunol Res 2019; 2019:5474519. [PMID: 31143781 PMCID: PMC6501428 DOI: 10.1155/2019/5474519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 02/27/2019] [Indexed: 11/26/2022] Open
Abstract
Detection and analysis of antigen-antibody reaction is one of the most critical detection techniques in the fields of medicine, biology, environmental science, and food safety. Traditional and classical methods for detecting antigen and antibody encounter many problems, such as time-consuming, high cost, and low accuracy. A novel immune microsphere imaging technique by the microlens is used to test the changes of refractive index before and after antigen-antibody reaction. It can quickly perform qualitative and quantitative determination for antigen-antibody reaction without any labeling, premodification, postwashing, and expensive enzymes. Here, we feature and discuss its principle and advantages, structure of a microlens immunoassay instrument, and potential in measuring clinical samples. It is promising to be developed for application to diagnosis of clinical diseases.
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9
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Egea E, Mendoza D, Garavito G, Saavedra S, Gómez H, Sanjuan M. Nanogold - IgY antibodies. An immunoconjugated for the detection of house dust mite (Dermatophagoides) allergens. J Immunol Methods 2018; 464:15-21. [PMID: 30165063 DOI: 10.1016/j.jim.2018.08.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 08/24/2018] [Accepted: 08/24/2018] [Indexed: 12/11/2022]
Abstract
Conjugation of avian IgY antibodies to nanosensors has been extensively explored for the diagnostics of virus and parasite infection, as well as for the detection of pharmaceutically and toxicologically relevant molecules. However, to date this strategy has only been minimally applied the detection of allergens. In this study, gold nanoparticles (GNPs) were conjugated to a polyvalent IgY antibodies raised against Dermatophagoides group I allergens. GNPs were synthesized by HAuCL4 reduction using 1% trisodium citrate, and characterized them by absorption spectroscopy and transmission electron microscopy (TEM). The most stable immunoconjugates were obtained with 18-nm monodisperse GNPs and a minimal concentration of 12.5 μg/mL of IgY at pH 7.5. The immunoconjugate was capable of detecting up to 1.5 μg of a total Dermatophagoides farinae protein extract in an immuno-dot blot assay. This immunoreactant conjugate represents a new tool for the detection and control of indoor dust mite allergens.
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Affiliation(s)
- Eduardo Egea
- Grupo de Investigación en Inmunología y Biología Molecular, Facultad de Medicina, Universidad del Norte, Km 5 vía a, Puerto Colombia, Atlántico, Colombia.
| | - Dary Mendoza
- Grupo de Productos Naturales y Bioquímica de Macromoléculas, Facultad de Ciencias Básicas, Programa de Química, Universidad del Atlántico, Km 7 vía a, Puerto Colombia, Atlántico, Colombia.
| | - Gloria Garavito
- Grupo de Investigación en Inmunología y Biología Molecular, Facultad de Medicina, Universidad del Norte, Km 5 vía a, Puerto Colombia, Atlántico, Colombia.
| | - Stephanie Saavedra
- Grupo de Investigación en Inmunología y Biología Molecular, Facultad de Medicina, Universidad del Norte, Km 5 vía a, Puerto Colombia, Atlántico, Colombia; Grupo de Productos Naturales y Bioquímica de Macromoléculas, Facultad de Ciencias Básicas, Programa de Química, Universidad del Atlántico, Km 7 vía a, Puerto Colombia, Atlántico, Colombia
| | - Humberto Gómez
- Grupo UREMA, Facultad de Ingeniería, Universidad del Norte, Km 5 vía a, Puerto Colombia, Atlántico, Colombia.
| | - Marcos Sanjuan
- Grupo UREMA, Facultad de Ingeniería, Universidad del Norte, Km 5 vía a, Puerto Colombia, Atlántico, Colombia.
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10
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Lanzarini NM, Bentes GA, Volotão EDM, Pinto MA. Use of chicken immunoglobulin Y in general virology. J Immunoassay Immunochem 2018; 39:235-248. [DOI: 10.1080/15321819.2018.1500375] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Natália Maria Lanzarini
- Laboratório de Desenvolvimento Tecnológico em Virologia, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro/RJ, Brazil
| | - Gentil Arthur Bentes
- Laboratório de Desenvolvimento Tecnológico em Virologia, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro/RJ, Brazil
| | - Eduardo de Mello Volotão
- Laboratório de Desenvolvimento Tecnológico em Virologia, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro/RJ, Brazil
| | - Marcelo Alves Pinto
- Laboratório de Desenvolvimento Tecnológico em Virologia, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro/RJ, Brazil
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11
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Zhang Y, Xiao W, Kong H, Cheng J, Yan X, Zhang M, Wang Q, Qu H, Zhao Y. A Highly Sensitive Immunochromatographic Strip Test for Rapid and Quantitative Detection of Saikosaponin d. Molecules 2018; 23:molecules23020338. [PMID: 29415494 PMCID: PMC6017486 DOI: 10.3390/molecules23020338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/23/2018] [Accepted: 02/01/2018] [Indexed: 01/13/2023] Open
Abstract
A quantitative lateral-flow immunoassay using gold nanoparticles (AuNPs) conjugated with a monoclonal antibody (MAb) against saikosaponin d (SSd) was developed for the analysis of SSd. The AuNPs were prepared in our laboratory. The AuNPs were polyhedral, with an average diameter of approximately 18 nm. We used the conjugation between AuNPs and MAbs against SSd to prepare immunochromatographic strips (ICSs). For the quantitative experiment, the strips with the test results were scanned using a membrane strip reader, and a detection curve (regression equation, y = -0.113ln(x) + 1.5451, R² = 0.983), representing the averages of the scanned data, was obtained. This curve was linear from 96 ng/mL to 150 μg/mL, and the IC50 value was 10.39 μg/mL. In this study, we bring the concept ofPOCT (point-of-care testing) to the measurement of TCM compounds, and this is the first report of quantitative detection of SSd by an ICS.
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Affiliation(s)
- Yue Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Wei Xiao
- Jiangsu Kanion Pharmaceutical Co., Ltd., 58 Jiangning Industrial Park Kangyuan Road, Lianyungang, Jiangsu, 210000, China.
| | - Hui Kong
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Jinjun Cheng
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Xin Yan
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Meiling Zhang
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Qingguo Wang
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Huihua Qu
- Centre of Scientific Experiment, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
| | - Yan Zhao
- School of Basic Medical Sciences, Beijing University of Chinese Medicine, 11 Beisanhuandong Road, Chaoyang District, Beijing 100029, China.
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MA XM, SUN M, LIN Y, LIU YJ, LUO F, GUO LH, QIU B, LIN ZY, CHEN GN. Progress of Visual Biosensor Based on Gold Nanoparticles. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1016/s1872-2040(17)61061-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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14
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Guo H, Xia Z, Tang W, Mao Z, Qian G, Wang C. Establishment and characterization of a cell line from the Chinese soft-shelled turtle Pelodiscus sinensis. In Vitro Cell Dev Biol Anim 2016; 52:673-82. [PMID: 27059326 DOI: 10.1007/s11626-016-0015-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 03/09/2016] [Indexed: 01/13/2023]
Abstract
The establishment and partial characterization of Pelodiscus sinensis continuous cell line is described here. A novel P. sinensis fibroblast cell line, designated PSF, was established from heart tissue by the semi-digestion explant culture technique. Since its initiation in July 2013, the cell line has been subcultured at 30°C in minimal essential medium (MEM) containing 15% (v/v) fetal bovine serum for more than 50 passages. The growth curve of the cell line revealed the population doubling time was 51.1 h. Karyotyping analysis indicated the modal chromosome number was 66, and no microbial contamination was detected. The PSF cell line produced significant fluorescent signals after transfection with plasmid pEGFP-C3. Analysis of mitochondrial cytochrome D-loop sequences revealed 96% identity among other Chinese turtle subspecies. Several cell line characterizations included morphological analysis and immunocytochemistry, which revealed the origin of the PSF cell line was fibroblast-like cells. Measurement of the isoenzymes lactic dehydrogenase and malic dehydrogenase showed no cross-contamination of this cell line with other species. This newly established cell line will be a valuable tool for transgenic and genetic manipulation studies and will act as an efficient instrument for studies of the viral diseases of the soft-shelled turtle.
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Affiliation(s)
- Haijie Guo
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
- Faculty of Biological and Environmental Sciences, Zhejiang Wanli University, No. 8, South Qian Hu Road, Ningbo, Zhejiang Province, 315100, China
| | - Zhaonan Xia
- Faculty of Biological and Environmental Sciences, Zhejiang Wanli University, No. 8, South Qian Hu Road, Ningbo, Zhejiang Province, 315100, China
| | - Wei Tang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
- Faculty of Biological and Environmental Sciences, Zhejiang Wanli University, No. 8, South Qian Hu Road, Ningbo, Zhejiang Province, 315100, China
| | - Zhijuan Mao
- Faculty of Biological and Environmental Sciences, Zhejiang Wanli University, No. 8, South Qian Hu Road, Ningbo, Zhejiang Province, 315100, China.
| | - Guoying Qian
- Faculty of Biological and Environmental Sciences, Zhejiang Wanli University, No. 8, South Qian Hu Road, Ningbo, Zhejiang Province, 315100, China.
| | - Caisheng Wang
- Faculty of Biological and Environmental Sciences, Zhejiang Wanli University, No. 8, South Qian Hu Road, Ningbo, Zhejiang Province, 315100, China
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15
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Zhang X, Zhou J, Zhang C, Zhang D, Su X. Rapid detection of Enterobacter cloacae by immunomagnetic separation and a colloidal gold-based immunochromatographic assay. RSC Adv 2016. [DOI: 10.1039/c5ra23533b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This is the first study of detection of Enterobacter cloacae via combined immunomagnetic separation and a colloidal gold-based immunochromatographic assay.
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Affiliation(s)
- Xuan Zhang
- School of Marine Sciences
- Ningbo University
- Ningbo
- P. R. China
| | - Jun Zhou
- School of Marine Sciences
- Ningbo University
- Ningbo
- P. R. China
| | - Chundan Zhang
- School of Marine Sciences
- Ningbo University
- Ningbo
- P. R. China
| | - Dijun Zhang
- School of Marine Sciences
- Ningbo University
- Ningbo
- P. R. China
| | - Xiurong Su
- School of Marine Sciences
- Ningbo University
- Ningbo
- P. R. China
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