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Zhao CR, Lin LT, Tang JW, Zhang Y, Zhang W, Chen JM, Wei P, Huang T, Wei TC, Mo ML. Development of a colloidal gold immunochromatographic strip for rapid detection of avian coronavirus infectious bronchitis virus. Poult Sci 2024; 103:103648. [PMID: 38574460 PMCID: PMC11004996 DOI: 10.1016/j.psj.2024.103648] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/26/2024] [Accepted: 03/08/2024] [Indexed: 04/06/2024] Open
Abstract
Avian infectious bronchitis virus (IBV) still causes serious economic losses in the poultry industry. Currently, there are multiple prevalent genotypes and serotypes of IBVs. It is imperative to develop a new diagnosis method that is fast, sensitive, specific, simple, and broad-spectrum. A monoclonal hybridoma cell, N2D5, against the IBV N protein was obtained after fusion of myeloma SP2/0 cells with spleen cells isolated from the immunized Balb/c mice. The N2D5 monoclonal antibody (mAb) and the previously prepared mouse polyclonal antibody against the IBV N protein were used to target IBV as a colloidal gold-mAb conjugate and a captured antibody, respectively, in order to develop an immunochromatographic strip. The optimal pH and minimum antibody concentration in the reaction system for colloidal gold-mAb N2D5 conjugation were pH 6.5 and 30 μg/mL, respectively. Common avian pathogens were tested to evaluate the specificity of the strip and no cross-reaction was observed. The sensitivity of the strip for detecting IBV was 10-1.4522 EID50/mL. The strip showed a broad-spectrum cross-reactive capacity for detecting IBV antigens, including multiple IBV genotypes in China and all of the seven serotypes of IBV that are currently prevalent in southern China. Additionally, the result can be observed within 2 min without any equipment. The throat and cloacal swab samples of chickens that were artificially infected with three IBV strains were tested using the developed strip and the qPCR method; the strip test demonstrated a high consistency in detecting IBV via qPCR gene detection. In conclusion, the immunochromatographic strip that was established is rapid, sensitive, specific, simple, practical, and broad-spectrum; additionally, it has the potential to serve as an on-site rapid detection method of IBV and can facilitate the surveillance and control of the disease, especially in resource-limited areas.
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Affiliation(s)
- Chang-Run Zhao
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Li-Ting Lin
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Jin-Wen Tang
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Yu Zhang
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Wen Zhang
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Ji-Ming Chen
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Ping Wei
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Teng Huang
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Tian-Chao Wei
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Mei-Lan Mo
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, Nanning, 530004, China.
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Dong S, Meng W, Mo L, Chen J, Shi J, Yang Z, Li T, Xu Q, Shen Z, Liu J, Wang J. [Preparation of colloidal gold test strips for the detection of antibodies to peste des petits ruminants based on monoclonal antibodies to N protein]. Sheng Wu Gong Cheng Xue Bao 2023; 39:4915-4926. [PMID: 38147991 DOI: 10.13345/j.cjb.230316] [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] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
A simple, fast, and visual method for detecting antibodies against peste des petits ruminants virus (PPRV) using colloidal gold strips was developed. In this study, the pET-32a-N was transformed into Escherichia coli Rosetta (DE3) for expression. Hybridoma cell lines were generated by fusing SP2/0 myeloma cells with splenocytes from immunized mice with the expressed and purified N protein of PPRV. The PPRV N protein was labeled with colloidal gold particles as the gold-labeled antigen. The N protein served as the gold standard antigen and as the test (T) line-coated antigen, while the monoclonal antibody served as the quality control (C) line-coated antibody to assemble the colloidal gold immunochromatographic test strips for detecting antibodies against the N protein of PPRV. Hybridoma cell line designated as 1F1 was able to stably secrete the monoclonal antibody against the N protein of PPRV. The titer of 1F1 monoclonal antibody in ascites was 1:128 000 determined by indirect enzyme-linked immunosorbent assays (ELISA), and the immunoglobulin subtype of the monoclonal antibody was IgG1, with kappa chain. The obtained monoclonal antibody was able to specifically recognize the N protein of PPRV, as shown by Western blotting and indirect immunofluorescent assay (IFA). The developed colloidal gold test strip method was able to detect PPRV antibodies specifically, and there was no difference between different batches of the test strips. Testing of a total of 122 clinical sera showed that the compliance rate of the test strip with ELISA test was 97.6%.The test strip assay developed in this study has good specificity, reproducibility, and sensitivity, and it can be used for the rapid detection of PPRV antibodies.
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Affiliation(s)
- Shuai Dong
- College of Life Science and Food Engineering, Hebei University of Engineering, Handan 056038, Hebei, China
- Shandong Binzhou Animal Science & Veterinary Medicine Academy, Binzhou 256600, Shandong, China
| | - Weiqin Meng
- Shandong Binzhou Animal Science & Veterinary Medicine Academy, Binzhou 256600, Shandong, China
| | - Ling Mo
- Shandong Binzhou Animal Science & Veterinary Medicine Academy, Binzhou 256600, Shandong, China
| | - Jinlong Chen
- College of Animal Science and Technology, Shihezi University, Shihezi 832003, Xinjiang, China
| | - Jingnan Shi
- College of Life Sciences and Food Engineering, Inner Mongolia Minzu University, Tongliao 028000, Inner Mongolia, China
| | - Zhe Yang
- College of Life Science and Food Engineering, Hebei University of Engineering, Handan 056038, Hebei, China
| | - Tong Li
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, Shandong, China
| | - Qianqian Xu
- Shandong Binzhou Animal Science & Veterinary Medicine Academy, Binzhou 256600, Shandong, China
| | - Zhiqiang Shen
- Shandong Binzhou Animal Science & Veterinary Medicine Academy, Binzhou 256600, Shandong, China
| | - Jianchai Liu
- College of Life Science and Food Engineering, Hebei University of Engineering, Handan 056038, Hebei, China
| | - Jinliang Wang
- Shandong Binzhou Animal Science & Veterinary Medicine Academy, Binzhou 256600, Shandong, China
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Wang C, Zhang K, Cai Y, Zhang X, Long J, Gu J, Bu Y, Sun H, Li D, Ding Y, Cai J, Chen D. Development of Colloidal Gold Test Strips for the Detection of Oxamyl Residues in Tobacco. Stud Health Technol Inform 2023; 308:168-178. [PMID: 38007738 DOI: 10.3233/shti230837] [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] [Indexed: 11/28/2023]
Abstract
In this study, monoclonal antibodies against oxamyl were prepared, and colloidal gold immunochromatography was used to design a rapid test strip product for the detection of oxamyl in tobacco with high specificity, accuracy and stability without cross-reactivity to commonly used tobacco fungicides based on the optimization of conditions such as pH value of diluent, diluent dosage, concentration of antibody marker, type of confining solution and complex solution. 5 The results of five samples of post-harvest ready-to-bake tobacco and first-harvest tobacco were consistent with the gas chromatographic method, which proved the reliability of the test strips. The limits of detection for the post-harvest and first-harvest tobacco samples were 0.1 mg/kg, and the test strips developed in this study are suitable for mass testing in tobacco laboratories with good application prospects because of their short detection time, simple pre-treatment and detection methods.
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Affiliation(s)
- Chunqiong Wang
- Yunnan Provincial Tobacco Quality Supervision and Inspection Station, Kunming, 650106
| | - Ke Zhang
- Yunnan Provincial Tobacco Quality Supervision and Inspection Station, Kunming, 650106
| | - Yongzhan Cai
- Yunnan Tobacco Company Qujing City, Qujing, 655000
| | - Xiaowei Zhang
- Yunnan Provincial Tobacco Quality Supervision and Inspection Station, Kunming, 650106
| | - Jie Long
- Yunnan Provincial Tobacco Quality Supervision and Inspection Station, Kunming, 650106
| | - Jianlong Gu
- Yunnan Provincial Tobacco Quality Supervision and Inspection Station, Kunming, 650106
| | - Yunhong Bu
- Yunnan Tobacco Company Chuxiong Prefecture, Chuxiong, 675099
| | - Haowei Sun
- Yunnan Provincial Tobacco Quality Supervision and Inspection Station, Kunming, 650106
| | - Dan Li
- Yunnan Provincial Tobacco Quality Supervision and Inspection Station, Kunming, 650106
| | - Yishu Ding
- Yunnan Tobacco Company Chuxiong Prefecture, Chuxiong, 675099
| | - Jieyun Cai
- Yunnan Provincial Tobacco Quality Supervision and Inspection Station, Kunming, 650106
| | - Dan Chen
- Yunnan Provincial Tobacco Quality Supervision and Inspection Station, Kunming, 650106
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Xu L, El-Aty AA, Cao Z, Lei X, Zhao J, Li J, Gao S, Zhao Y, She Y, Jin F, Wang J, Jin M, Hammock BD. Generating Monoclonal Antibodies against Buprofezin and Developing Immunoassays for Its Residue Detection in Tea Samples. J Agric Food Chem 2023; 71:14967-14978. [PMID: 37803933 PMCID: PMC10807744 DOI: 10.1021/acs.jafc.3c03263] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/08/2023]
Abstract
The synthesis of a hapten and antigen for the preparation of a monoclonal antibody (mAb) for buprofezin is described. The recognition mechanism of hapten and buprofezin by monoclonal antibodies (mAb-19F2) is described. The effectiveness of the mAb-19F2 immunoassay technique was assessed, and the effective detection of buprofezin in tea samples was achieved through the establishment of indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and colloidal gold immunochromatography assay (GICA). The mAb-19F2 subtype was IgG1, with an IC50 of 1.8 ng/mL and a linear range (IC20-IC80) of 0.6-5.4 μg/L, and had a cross-reaction rate of less than 0.18% with 29 other pesticides (neonicotinoids and insect growth regulators). The study identified π-π stacking interactions between hapten and TYR-61 at the mAb-19F2 site and alkyl/phosphate interactions with TRP-105 and ARG-103. The ic-ELISA had an IC50 of 12.9 ng/mL in green tea and 5.65 ng/mL in black tea, with a recovery rate of 92.4%-101.0% and RSD of 2.1%-4.8%. The GICA had a limit of detection (LOD) was 500 ng/mL, with the complete disappearance of the test lines visible to the naked eye. The limit of quantitation (LOQ, IC20) was determined to be 16.8 ng/mL. Additionally, the developed GICA showed no cross-reactivity with neonicotinoid pesticides. The recovery rate of tea spiked recovered samples was 83.6%-92.2%, with an RSD of 5.3%-12.6%, and the results were consistent with the LC/MS method. This study is important for the real-time detection of buprofezin residues to ensure food safety and human health.
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Affiliation(s)
- Lingyuan Xu
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - A.M. Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China
- Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum 25240, Turkey
| | - Zhen Cao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xingmei Lei
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Zhao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jia Li
- Jinhua Miaozhidizhi Agricultural Technology Co., Ltd., Jinhua 321000, China
| | - Song Gao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yun Zhao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yongxin She
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Fen Jin
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Wang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Maojun Jin
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Bruce D. Hammock
- Department of Entomology & Nematology and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA
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Yang N, Liu K, Zhang W, Li Y, Shen S, Lu C, Xu K, Peng W, Deng C, Chen M, Yang L, Lai S. Predicting late-onset preeclampsia by detecting ELABELA content using an immunochromatographic colloidal gold test strip: Blood ELABELA content predicts the risk of pre-eclampsia. J Clin Hypertens (Greenwich) 2023; 25:932-942. [PMID: 37746730 PMCID: PMC10560972 DOI: 10.1111/jch.14724] [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: 05/19/2023] [Revised: 08/18/2023] [Accepted: 08/18/2023] [Indexed: 09/26/2023]
Abstract
Preeclampsia is a pregnancy disorder that seriously affects the outcome of mothers and infants and lacks effective prediction and diagnosis methods. ELABELA is the second endogenous ligand of the apelin receptor (APJ) and is associated with the pathogenesis of preeclampsia. In a previous study, the authors found that the downregulation of ELABELA expression is closely related to late-onset preeclampsia, which may be a marker for the clinical diagnosis of late-onset preeclampsia. In this study, the authors again collected 120 maternal blood samples, including 60 pregnant women with a medical diagnosis of late-onset preeclampsia. ELISA results showed that the serum ELABELA concentration in late-onset preeclampsia pregnant women (12.57 ± 7.77 ng/mL) was significantly lower than that in normal pregnant women (36.99 ± 23.58 ng/mL), which was consistent with previously reported results. Therefore, the authors used an ELABELA monoclonal antibody to label four colloidal gold nanoparticles with different diameters (15, 30, 55, and 150 nm) and developed a transverse-flow immunochromatographic band for the rapid and accurate detection of serum ELABELA levels. The strip test shows that colloidal gold with a diameter of 30 nm can be used as a good ELABELA detection marker and had more than 90% positive detection effect. Therefore, the authors hope that the colloidal gold strip with ELABELA as the diagnostic index developed by us will be popularized and applied in clinical diagnosis.
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Affiliation(s)
- Na Yang
- School of Life SciencesNanjing Normal UniversityNanjingChina
| | - Kangsheng Liu
- Department of Clinical LaboratoryWomen's Hospital of Nanjing Medical UniversityNanjing Maternity and Child Health Care HospitalNanjingChina
| | - Wenli Zhang
- School of Life SciencesNanjing Normal UniversityNanjingChina
| | - Ying Li
- Pan'an Mason Medical Technology Co., LTD.JinhuaChina
| | - Suqin Shen
- Department of Clinical LaboratoryWomen's Hospital of Nanjing Medical UniversityNanjing Maternity and Child Health Care HospitalNanjingChina
| | - Chuanchuan Lu
- Department of Obstetrics and GynecologyWomen's Hospital of Nanjing Medical UniversityNanjing Maternity and Child Health Care HospitalNanjingChina
| | - Kai Xu
- School of Life SciencesNanjing Normal UniversityNanjingChina
| | - Wei Peng
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious DiseasesKingMed School of Laboratory MedicineGuangzhou Medical UniversityGuangzhouChina
| | - Cheng Deng
- School of Life SciencesNanjing Normal UniversityNanjingChina
| | - Meilin Chen
- Pan'an County maternal and Child Health Hospital, Clinical LaboratoryJinhuaChina
| | - Lindong Yang
- Department of Obstetrics & GynecologyAffiliated Jinling HospitalMedical School of Nanjing UniversityNanjingChina
| | - Shanshan Lai
- School of Life SciencesNanjing Normal UniversityNanjingChina
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Liu Z, Liang J, Hu H, Wu M, Ma J, Ma Z, Ji J, Chen H, Li X, Wang Z, Luo Y. Development of an Effective Neutralizing Antibody Assay for SARS-CoV-2 Diagnosis. Int J Nanomedicine 2023; 18:3125-3139. [PMID: 37333734 PMCID: PMC10275375 DOI: 10.2147/ijn.s408921] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 06/08/2023] [Indexed: 06/20/2023] Open
Abstract
Introduction Neutralizing antibodies (NAbs) are essential for preventing reinfection with SARS-CoV-2 and the recurrence of COVID-19; nonetheless, the formation of NAbs following vaccination and infection remains enigmatic due to the lack of a practical and effective NAb assay in routine laboratory settings. In this study, we developed a convenient lateral flow assay for the rapid and precise measurement of serum NAb levels within 20 minutes. Methods Receptor-binding domain-fragment crystallizable (RBD-Fc) and angiotensin-converting enzyme 2-histidine tag (ACE2-His) were expressed by the eukaryotic expression systems of Spodoptera frugiperda clone 9 and human embryonic kidney 293T, respectively. Then, colloidal gold was synthesized and conjugated with ACE2. After optimizing various operating parameters, an NAb lateral flow assay was constructed. Subsequently, its detection limit, specificity, and stability were systematically evaluated, and clinical samples were analyzed to validate its clinical feasibility. Results RBD-Fc and ACE2-His were obtained with 94.01% and 90.05% purity, respectively. The synthesized colloidal gold had a uniform distribution with an average diameter of 24.15 ± 2.56 nm. With a detection limit of 2 μg/mL, the proposed assay demonstrated a sensitivity of 97.80% and a specificity of 100% in 684 uninfected clinical samples. By evaluating 356 specimens from infected individuals, we observed that the overall concordance rate between the proposed assay and conventional enzyme-linked immunosorbent assay was 95.22%, and we noticed that 16.57% (59/356) of individuals still did not produce NAbs after infection (both by ELISA and the proposed assay). All the above tests by this assay can obtain results within 20 minutes by the naked eye without any additional instruments or equipment. Conclusion The proposed assay can expediently and reliably detect anti-SARS-CoV-2 NAbs after infection, and the results provide valuable data to facilitate effective prevention and control of SARS-CoV-2. Clinical trial registration Serum and blood samples were used under approval from the Biomedical Research Ethics Subcommittee of Henan University, and the clinical trial registration number was HUSOM-2022-052. We confirm that this study complies with the Declaration of Helsinki.
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Affiliation(s)
- Zhigang Liu
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, 475004, People’s Republic of China
| | - Jiahui Liang
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, 475004, People’s Republic of China
| | - Hangzhan Hu
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, 475004, People’s Republic of China
| | - Mengli Wu
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, 475004, People’s Republic of China
| | - Jingjing Ma
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, 475004, People’s Republic of China
| | - Ziwei Ma
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, 475004, People’s Republic of China
| | - Jianing Ji
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, 475004, People’s Republic of China
| | - Hengyi Chen
- Center of Smart Laboratory and Molecular Medicine, Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 400044, People’s Republic of China
| | - Xiaoquan Li
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, 475004, People’s Republic of China
| | - Zhizeng Wang
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, School of Medicine, Henan University, Kaifeng, 475004, People’s Republic of China
- Center of Smart Laboratory and Molecular Medicine, Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 400044, People’s Republic of China
| | - Yang Luo
- Center of Smart Laboratory and Molecular Medicine, Jiangjin Hospital, School of Medicine, Chongqing University, Chongqing, 400044, People’s Republic of China
- College of Life Science and Laboratory Medicine, Kunming Medical University, Kunming, 650500, People’s Republic of China
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Zhou X, Guan S, Li N, Zhou J, Pan W, Wang Y. Development of Indirect Competitive ELISA and Colloidal Gold Immunochromatographic Strip for Endosulfan Detection Based on a Monoclonal Antibody. Foods 2023; 12:foods12040736. [PMID: 36832815 PMCID: PMC9955377 DOI: 10.3390/foods12040736] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/26/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Endosulfan, as an effective broad-spectrum insecticide, has been banned in agricultural areas because of the potential harmful effects on human health. This study aimed to develop an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and colloidal gold immunochromatographic (ICA) strip based on a prepared monoclonal antibody (mAb) for quantitative and qualitative detection of endosulfan. A new mAb with high sensitivity and affinity was designed and screened. The ic-ELISA showed a 50% inhibition concentration (IC50) value of 5.16 ng/mL for endosulfan. Under optimum conditions, the limit of detection (LOD) was determined to be 1.14 ng/mL. The average recoveries of endosulfan in spiked pear and apple samples ranged from 91.48-113.45% and 92.39-106.12% with an average coefficient of variation (CV) of less than 7%, respectively. The analysis of colloidal gold ICA strip could be completed within 15 min by naked eye and the visual limit of detection (vLOD) was both 40 ng/mL in pear and apple samples. In conclusion, both developed immunological methods were suitable and reliable for the on-site detection of endosulfan in real samples at trace levels.
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Affiliation(s)
| | | | | | | | | | - Yun Wang
- Correspondence: ; Tel.: +86-13951280586
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Zvereva EA, Hendrickson OD, Dzantiev BB, Zherdev AV. Lateral Flow Test System to Control Total Content of Muscle Tissues in Raw Meat Products. Sensors (Basel) 2022; 22:9724. [PMID: 36560100 PMCID: PMC9783880 DOI: 10.3390/s22249724] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/06/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
Assessment of the composition of meat-containing products is the task in demand due to their frequent deviations from declared recipes. The paper presents the developed test system for immunochromatographic determination of total meat content. The assay is based on the simultaneous use of monoclonal antibodies, which specifically interacts with mammalian skeletal troponin I, and polyclonal antibodies, which specifically detect bird immunoglobulin Y. To integrate the detection of both types of meat by the same test strip, the antibodies are mixed in the analytical zone of the test strip and in complex with a gold nanoparticle label. The chosen ratios of the antibodies for both mixtures provide the same contribution of different types of mammalian and bird raw materials of muscle tissues to the label binding. The test system demonstrates suitability for products containing beef, pork, rabbit, lamb, chicken, and turkey meat. The minimal detectable content of meat in samples is 0.1%. The samples for the testing are diluted 100 times, thus eliminating matrix effects, and providing high reproducibility of the color intensity for extracts of different compositions. The obtained results allow the recommendation of the developed test system for rapid on-site control of meat products.
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Byzova NA, Zherdev AV, Gorbatov AA, Shevyakov AG, Biketov SF, Dzantiev BB. Rapid Detection of Lipopolysaccharide and Whole Cells of Francisella tularensis Based on Agglutination of Antibody-Coated Gold Nanoparticles and Colorimetric Registration. Micromachines (Basel) 2022; 13:2194. [PMID: 36557493 PMCID: PMC9784915 DOI: 10.3390/mi13122194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
The paper presents development and characterization of a new bioanalytical test system for rapid detection of lipopolysaccharide (LPS) and whole cells of Francisella tularensis, a causative agent of tularemia, in water samples. Gold nanoparticles (AuNPs) coated by the obtained anti-LPS monoclonal antibodies were used for the assay. Their contact with antigen in tested samples leads to aggregation with a shift of absorption spectra from red to blue. Photometric measurements at 530 nm indicated the analyte presence. Three preparations of AuNPs with different diameters were compared, and the AuNPs having average diameter of 34 nm were found to be optimal. The assay is implemented in 20 min and is characterized by detection limits equal to 40 ng/mL for LPS and 3 × 104 CFU/mL for whole cells of F. tularensis. Thus, the proposed simple one-step assay integrates sensitivity comparable with other immunoassay of microorganisms and rapidity. Selectivity of the assay for different strains of F. tularensis was tested and the possibility to choose its variants with the use of different antibodies to distinguish virulent and non-virulent strains or to detect both kinds of F. tularensis was found. The test system has been successfully implemented to reveal the analyte in natural and tap water samples without the loss of sensitivity.
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Affiliation(s)
- Nadezhda A. Byzova
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia
| | - Anatoly V. Zherdev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia
| | - Alexey A. Gorbatov
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Russia
| | - Anton G. Shevyakov
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Russia
| | - Sergey F. Biketov
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Russia
| | - Boris B. Dzantiev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia
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Huang L, Zhang F, Li F, Jia Y, Wang M, Hua X, Wang L. Development of Ic-ELISA and Colloidal Gold Lateral Flow Immunoassay for the Determination of Cypermethrin in Agricultural Samples. Biosensors (Basel) 2022; 12:1058. [PMID: 36421176 PMCID: PMC9688530 DOI: 10.3390/bios12111058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/14/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
Cypermethrin (CYP) is an insecticide in the pyrethroid family and is used widely in agriculture and for public health purposes. However, CYP has been shown to have negative impacts on reproduction, immunity and nerves in mammals. In this study, a monoclonal antibody (mAb) against CYP was prepared and used to establish an indirect competitive immunosorbent assay (ic-ELISA) and colloidal gold lateral flow immunoassay (LFIA) for the quantitative and qualitative determination of CYP residues in agricultural products. The half inhibition concentration of the ic-ELISA was 2.49 ng/mL, and the cut-off value and visual limit of detection of the LFIA were 0.6 and 0.3 μg/mL, respectively. The recovery rates of the ic-ELISA ranged from 78.8% to 87.6% in tomato, cabbage and romaine lettuce. The qualitative results of LFIA and quantitative results of ic-ELISA and HPLC were in good agreement in blind samples. Overall, the established ic-ELISA and LFIA proved to be accurate and rapid methods for the determination of CYP in agricultural products.
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Affiliation(s)
- Lianrun Huang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Fuxuan Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Fangxuan Li
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Yin Jia
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Minghua Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Xiude Hua
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Limin Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
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11
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Dong X, Sun W, Cao P, Liu X. [ Colloidal gold immunochromatographic test strip for virus detection: a review]. Sheng Wu Gong Cheng Xue Bao 2022; 38:3243-3254. [PMID: 36151796 DOI: 10.13345/j.cjb.220052] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Colloidal gold immunochromatographic strip is a fast, sensitive and accurate solid-phase labeling detection technology, which has the advantages of low price, easy operation, rapid detection and high specificity, with the potential to qualitatively detect the relevant viruses in a short time with desired sensitivity and accuracy. It effectively addresses the disadvantages of long detection time, equipment inconvenience and professionalism requirement of the traditional detection methods used in the medical, veterinary, animal, plant virus detection, pesticide residue detection and other areas. Presently, the technology has been applied in the detection of bacterial diseases, viral diseases and prevention of extensive spread of infectious diseases, and has sufficient room for further development. This review summarizes the application of colloidal gold immunochromatography strip for biological virus detection, followed by prospecting future perspectives.
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Affiliation(s)
- Xuxu Dong
- Institute of Surface Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Wei Sun
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Pan Cao
- Institute of Surface Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Xiaodan Liu
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, Jiangsu, China
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12
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Zhang S, Xu Q, Yang J, Li Q, Sun Y, Li X, Wang Y, Niu X, Qu X, Chen J, Zhang E, Zhang G. [Expression of NDV HN protein in rice and development of a semi-quantitative rapid method for detection of antibodies]. Sheng Wu Gong Cheng Xue Bao 2022; 38:1981-1993. [PMID: 35611743 DOI: 10.13345/j.cjb.210629] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The aim of this study was to develop a semi-quantitative immunochromatographic method for rapid detection of Newcastle disease virus (NDV) antibodies by expressing HN protein in rice endosperm bioreactor. The recombinant plasmid pUC57-HN was digested by MlyⅠ and XhoⅠ to retrieve the HN gene, while the intermediate vector pMP3 containing promoter, signal peptide and terminator was digested by NaeⅠ and XhoⅠ. The HN gene and the linearized pMP3 were purified and ligated to form a recombinant plasmid pMP3-HN1. Subsequently, pMP3-HN1 and plant vector pCAMBIA1300 were digested by EcoRⅠ and Hind Ⅲ, and the HN1 gene was cloned into pCAMBIA1300. The recombinant plasmid pCAMBIA1300-HN1 was introduced into Agrobacterium tumefaciens EHA105 by electrotransformation, and the pCAMBIA1300-HN1 was transferred into rice callus by agrobacterium-mediated method. After dark culture, callus screening, differentiation, rooting and transplanting, transgenic rice seeds were obtained 4 months later. PCR identified that the HN gene has been inserted into the rice genome. SDS-PAGE and Western blotting indicated that the HN protein was successfully expressed in the positive rice endosperm. The purity of the HN protein was more than 90% by SP cation exchange chromatography and gel filtration chromatography. According to the national standards for the diagnostic techniques of Newcastle disease HI test (HI≥4log2, positive antibody reaction), a colloidal gold labeled purified HN protein was used to prepare a semi-quantitative test strip by double-antibody sandwich method for rapid detection of NDV antibody. The results showed that the test strip did not cross-react with positive sera against other viruses, and the sensitivity of the test strip reached 1:102 400 for standard positive sera of Newcastle disease. Testing of a total of 308 clinical sera showed that the compliance rate of the test strip with HI test was 97.08%, and the Kappa value was 0.942. In conclusion, high purity recombinant HN protein was obtained from rice endosperm, and a simple, rapid, highly sensitive and highly specific semi-quantitative immunochromatographic strip was developed. The test strip could be used for immune evaluation of the Newcastle disease vaccine.
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Affiliation(s)
- Shenli Zhang
- International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, Henan, China
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China
| | - Qianru Xu
- College of Veterinary Medicine, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Jifei Yang
- Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, Henan, China
| | - Qingmei Li
- Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, Henan, China
| | - Yaning Sun
- Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, Henan, China
| | - Xueyang Li
- International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, Henan, China
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China
| | - Yanan Wang
- College of Veterinary Medicine, Jilin University, Changchun 130062, Jilin, China
| | - Xiangxiang Niu
- International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, Henan, China
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China
| | - Xiaotian Qu
- International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, Henan, China
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China
| | - Jinxuan Chen
- International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, Henan, China
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China
| | - Erqin Zhang
- International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, Henan, China
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China
| | - Gaiping Zhang
- International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, Henan, China
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China
- Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, Henan, China
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Ye W, Wang L, Zhang Y, Li C, Qian T, Fu X, Zhang M, Shan J. [Development of a colloidal gold based immunochromatographic strip for 8-OHdG detection]. Sheng Wu Gong Cheng Xue Bao 2022; 38:1197-1208. [PMID: 35355485 DOI: 10.13345/j.cjb.210384] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
8-hydroxy-2'-deoxyguanosine (8-OHdG) is a sensitive and stable biomarker for evaluating DNA oxidative damage. A rapid and sensitive colloidal gold immunochromatographic strip was developed for 8-OHdG detection by a competitive method. The sample pad (glass cellulose film), bonding pad (glass cellulose film), nitrocellulose film and absorbent pad were pasted on the polyvinyl chloride (PVC) base plate to construct the test strip. Colloidal gold (AuNPs) was prepared by the reduction of chloroauric acid with sodium citrate. 8-OHdG antibody (Ab) was coated on the outer layer of AuNPs to form Ab@AuNPs as a probe. Bovine serum albumin (BSA) and 8-OHdG were conjugated with carbodiimide hydrochloride to prepare an artificial antigen, which was used as the coating antigen of detection line. Goat anti mouse polyclonal antibody IgG was used as the coating antibody of control line. The experimental parameters were optimized including the type of nitrocellulose membrane, the formula of loading solution, and the spraying amount of gold labeled antibody. The results showed that the appropriate nitrocellulose membrane was CN 95. The optimal loading solution included BSA (1%), Tween-20 (3%), sucrose (3%) and NaCl (0.9%). The optimal spraying amount of gold labeled antibody was 4 μL. 8-OHdG can be detected by the strip under visible light, and the level of 8-OHdG in urine can be preliminarily determined by comparing the color intensity of T line and C line. The 8-OHdG concentration in urine was further calculated by the gray value of T line and the threshold of detection was 2.55 μg/L. This colloidal gold immunochromatographic strip is simple, rapid and specific for detecting 8-OHdG in human urine to preliminarily evaluate the human status.
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Affiliation(s)
- Weiwei Ye
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
| | - Liwen Wang
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
| | - Yu Zhang
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
| | - Chaofeng Li
- College of Life Sciences, China Jiliang University, Hangzhou 310018, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, Hangzhou 310018, Zhejiang, China
| | - Tianrun Qian
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
| | - Xianshu Fu
- College of Life Sciences, China Jiliang University, Hangzhou 310018, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, Hangzhou 310018, Zhejiang, China
| | - Mingzhou Zhang
- College of Life Sciences, China Jiliang University, Hangzhou 310018, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, Hangzhou 310018, Zhejiang, China
| | - Jihong Shan
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
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Bai Y, Jia R, Wei Q, Wang L, Sun Y, Li Y, Luo J, Zhang G. Development and application of a high-sensitivity immunochromatographic test strip for detecting classical swine fever virus antibodies. Transbound Emerg Dis 2021; 69:e788-e798. [PMID: 34724351 DOI: 10.1111/tbed.14367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 07/06/2021] [Revised: 09/28/2021] [Accepted: 10/12/2021] [Indexed: 11/30/2022]
Abstract
Classical swine fever (CSF) is caused by classical swine fever virus (CSFV) and has led to huge economic losses in the pig industry worldwide. Although vaccination and other control measures have been carried out, it is essential to establish a rapid and valid method for CSF vaccination monitoring and clinical diagnosis. The CSFV E2 protein has been widely used as a major antigen for antibody detection. It is important to improve the affinity between the E2 protein and CSFV antibodies to improve the performance of the detection method. In this study, a recombinant E2 extracellular protein (amino acids 1-331) with a native homodimer conformation and high affinity for the anti-CSFV-E2 monoclonal antibody WH303 was expressed using a Bac-to-Bac baculovirus expression system. A novel immunochromatographic test strip based on the recombinant CSFV E2 protein was developed for CSFV antibody detection. The sensitivity of this strip for detecting CSFV standard-positive serum was 1:102400, 4 times higher than that of the previously developed CnC2 test strip. No cross-reactivity with antibodies of other swine viruses was observed. Detection of clinical swine serum samples (n = 813) demonstrated that the agreements of this E2 test strip with three commercial ELISA kits were 97.17% (790/813), 95.94% (780/813), and 93.73% (762/813), respectively. Our data indicate that a novel E2 test strip with enhanced sensitivity has been developed and can be applied for clinical sample detection, providing a new, powerful and simple approach for CSFV antibody monitoring. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Yilin Bai
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, People's Republic of China.,Key Laboratory of Animal Immunology, Ministry of Agriculture and Rural Affairs & Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China
| | - Rui Jia
- Key Laboratory of Animal Immunology, Ministry of Agriculture and Rural Affairs & Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China.,School of Life Sciences, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Qiang Wei
- Key Laboratory of Animal Immunology, Ministry of Agriculture and Rural Affairs & Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China
| | - Li Wang
- Key Laboratory of Animal Immunology, Ministry of Agriculture and Rural Affairs & Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China
| | - Yaning Sun
- Key Laboratory of Animal Immunology, Ministry of Agriculture and Rural Affairs & Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China
| | - Yiwei Li
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang, 453003, People's Republic of China
| | - Jun Luo
- Key Laboratory of Animal Immunology, Ministry of Agriculture and Rural Affairs & Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China
| | - Gaiping Zhang
- Key Laboratory of Animal Immunology, Ministry of Agriculture and Rural Affairs & Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China.,College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China.,Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, 225009, People's Republic of China
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15
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Ren YG, Liu MC, Ji MZ, Chen C, Hu HZ, Wang ZX, Yu PQ, Shang JM, Zhou QW, Tao NY, Guo YF, Lu YJ, Wang ZZ. Rapid detection of human heart-type fatty acid-binding protein in human plasma and blood using a colloidal gold-based lateral flow immunoassay. Exp Ther Med 2021; 22:1238. [PMID: 34539834 PMCID: PMC8438696 DOI: 10.3892/etm.2021.10673] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 06/11/2020] [Accepted: 02/15/2021] [Indexed: 12/22/2022] Open
Abstract
The incidence of acute myocardial infarction (AMI) is currently increasing. Early detection is important for the treatment and prognosis of patients with AMI. Heart-type fatty acid-binding protein (H-FABP) may be used as an early marker of AMI due to its high sensitivity, specificity and prognostic value. Therefore, in the present study, H-FABP was used as a biomarker in a double-antibody sandwich method and colloidal gold-based lateral flow immunoassay to develop a rapid detection kit for H-FABP with a processing time of only 5 min. The sensitivity of the kit in plasma and whole blood was 1 ng/ml and this method had good specificity, exhibiting no cross-reaction with cardiac troponin I, myoglobin or creatine kinase-Mb. The kits had good shelf life and stability, as they were able to be stored at 40˚C for 30 days. A total of 12 clinical samples were collected for detection and the coincidence rate with the ELISA method was up to 91.67%. Therefore, the present study provided a simple, rapid and economical early-detection in-home testing kit.
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Affiliation(s)
- Yang-Guang Ren
- Department of Breast and Thyroid Surgery, Huaihe Hospital of Henan University, Kaifeng, Henan 475004, P.R. China
| | - Mei-Chen Liu
- Joint National Laboratory for Antibody Drug Engineering, Key Laboratory of Cellular and Molecular Immunology of Henan Province, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Meng-Zhen Ji
- Joint National Laboratory for Antibody Drug Engineering, Key Laboratory of Cellular and Molecular Immunology of Henan Province, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Chen Chen
- Joint National Laboratory for Antibody Drug Engineering, Key Laboratory of Cellular and Molecular Immunology of Henan Province, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Hang-Zhan Hu
- Joint National Laboratory for Antibody Drug Engineering, Key Laboratory of Cellular and Molecular Immunology of Henan Province, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Zi-Xuan Wang
- Department of Breast and Thyroid Surgery, Huaihe Hospital of Henan University, Kaifeng, Henan 475004, P.R. China
| | - Pin-Qian Yu
- Joint National Laboratory for Antibody Drug Engineering, Key Laboratory of Cellular and Molecular Immunology of Henan Province, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Jia-Ming Shang
- Joint National Laboratory for Antibody Drug Engineering, Key Laboratory of Cellular and Molecular Immunology of Henan Province, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Qian-Wen Zhou
- Joint National Laboratory for Antibody Drug Engineering, Key Laboratory of Cellular and Molecular Immunology of Henan Province, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Ning-Ya Tao
- Joint National Laboratory for Antibody Drug Engineering, Key Laboratory of Cellular and Molecular Immunology of Henan Province, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Ya-Fei Guo
- Joint National Laboratory for Antibody Drug Engineering, Key Laboratory of Cellular and Molecular Immunology of Henan Province, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R. China.,School of Medical Laboratory, Sanquan College of Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Yan-Jiao Lu
- Department of Breast and Thyroid Surgery, Huaihe Hospital of Henan University, Kaifeng, Henan 475004, P.R. China
| | - Zhi-Zeng Wang
- Joint National Laboratory for Antibody Drug Engineering, Key Laboratory of Cellular and Molecular Immunology of Henan Province, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R. China
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Sbihi Y, El Abbadi N, Iddar A. Lateral flow immunogold assay as a rapid detection tool for screening of congenital hypothyroidism. J Immunoassay Immunochem 2021; 42:393-405. [PMID: 33634731 DOI: 10.1080/15321819.2021.1891931] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Congenital hypothyroidism (CH) is one of the most common preventable causes of mental retardation. The majority of infants are diagnosed after detection through newborn screening programs using thyroid-stimulating hormone (TSH) test. A rapid immunochromatographic lateral flow assay based on monoclonal antibodies (MAbs) colloidal gold nanoparticles was developed in a sandwich format for the detection of TSH. Two MAbs binding distinct TSH epitopes are used; one is conjugated to the detection reagent while the other is immobilized at the test line on the membrane. The colloidal gold was prepared by the reduction of gold salt coupled with MAbs and this optimal concentration was determined by spectrophotometry method. The sensitivity of our developed lateral flow immunoassay was determined using 5, 10, 15, 25 and 50 μUI/mL of TSH. The color intensity of the test line was directly proportional to the TSH concentration and the visual limit of detection was 10 μUI/mL. Twenty samples of umbilical cord serum were analyzed by the developed strips and the intensity of the signal was in agreement with the results obtained by the conventional radioimmunoassay method. The results suggest that this rapid test can be used in initial screening for congenital hypothyroidism especially in rural areas.
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Affiliation(s)
- Younes Sbihi
- Biotechnology and Engineering of Biomolecules Unit, National Centre for Nuclear Energy, Science and Technology (Cnesten-morocco), Rabat, Morocco
| | - Najia El Abbadi
- Biotechnology and Engineering of Biomolecules Unit, National Centre for Nuclear Energy, Science and Technology (Cnesten-morocco), Rabat, Morocco
| | - Abdelghani Iddar
- Biotechnology and Engineering of Biomolecules Unit, National Centre for Nuclear Energy, Science and Technology (Cnesten-morocco), Rabat, Morocco
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Choi N, Park B, Lee MJ, Umapathi R, Oh SY, Cho Y, Huh YS. Fabrication of Carbon Disulfide Added Colloidal Gold Colorimetric Sensor for the Rapid and On-Site Detection of Biogenic Amines. Sensors (Basel) 2021; 21:1738. [PMID: 33802387 PMCID: PMC7959309 DOI: 10.3390/s21051738] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/26/2021] [Accepted: 02/28/2021] [Indexed: 11/17/2022]
Abstract
Meat is often wasted due to the perceived concerns of its shelf life and preservation. Specifically, in meat formation, biogenic amines (BAs) are the major agents to spoil them. Herein, we have developed a carbon disulfide (CS2) added colloidal gold nanoparticles-based colorimetric sensor for the rapid and on-site detection of biogenic amines. Transmission electron microscopy is used to observe the morphological changes in colloidal gold nanoparticles and aggregation behavior of CS2 added to the colloidal gold nanoparticles' solution. Raman spectroscopic analysis is further used to characterize the peaks of CS2, Cad and CS2-Cad molecules. Absorption spectroscopy is used to estimate the colorimetric differences and diffuse reflectance spectra of the samples. The sensing analysis is performed systematically in the presence and absence of CS2. CS2 added colloidal gold nanoparticles colorimetric sensor detected the BAs with a limit of detection (LOD) value of 50.00 µM. Furthermore, the developed sensor has shown an LOD of 50.00 µM for the detection of multiple BAs at a single time. The observed differences in the colorimetric and absorption signals indicate that the structure of BAs is converted to the dithiocarbamate (DTC)-BA molecule, due to the chemical reactions between the amine groups of BAs and CS2. Significantly, the developed colorimetric sensor offers distinct features such as facile fabrication approach, on-site sensing strategy, rapid analysis, visual detection, cost-effective, possibility of mass production, availability to detect multiple BAs at a single time and appreciable sensitivity. The developed sensor can be effectively used as a promising and alternative on-site tool for the estimation of BAs.
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Affiliation(s)
- Namhyeok Choi
- NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, 100 Inha-ro, Incheon 22212, Korea; (N.C.); (B.P.); (M.J.L.); (R.U.)
| | - Bumjun Park
- NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, 100 Inha-ro, Incheon 22212, Korea; (N.C.); (B.P.); (M.J.L.); (R.U.)
| | - Min Ji Lee
- NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, 100 Inha-ro, Incheon 22212, Korea; (N.C.); (B.P.); (M.J.L.); (R.U.)
| | - Reddicherla Umapathi
- NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, 100 Inha-ro, Incheon 22212, Korea; (N.C.); (B.P.); (M.J.L.); (R.U.)
| | - Seo Yeong Oh
- Research Group of Consumer Safety, Korea Food Research Institute, 245 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Korea;
| | - Youngjin Cho
- Research Group of Consumer Safety, Korea Food Research Institute, 245 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Korea;
| | - Yun Suk Huh
- NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, 100 Inha-ro, Incheon 22212, Korea; (N.C.); (B.P.); (M.J.L.); (R.U.)
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18
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Zvereva EA, Popravko DS, Hendrickson OD, Vostrikova NL, Chernukha IM, Dzantiev BB, Zherdev AV. Lateral Flow Immunoassay to Detect the Addition of Beef, Pork, Lamb, and Horse Muscles in Raw Meat Mixtures and Finished Meat Products. Foods 2020; 9:E1662. [PMID: 33203004 DOI: 10.3390/foods9111662] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/08/2020] [Accepted: 11/10/2020] [Indexed: 11/17/2022] Open
Abstract
A lateral flow immunoassay for sensitive detection of skeletal troponin I (TnI) as a specific, thermostable marker of muscle tissue was developed. Due to the antibodies' choice, the assay specifically detects mammalian TnI (in beef, pork, lamb, and horse) but does not detect bird TnI (in chicken or turkey), thus enabling differentiation of these types of raw meat materials. The assay is based on a sandwich format of the analysis using gold nanoparticles as labels. The time of the assay is 15 min, and the TnI detection limit is 25 ng/mL. A buffer solution is proposed for efficient extraction of TnI from muscle tissues and from finished meat products that have undergone technological processing (smoking-cooking-smoking, cooking and smoking). The possibility of detecting beef addition in minced chicken down to 1% was demonstrated.
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19
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Grys DB, de Nijs B, Salmon AR, Huang J, Wang W, Chen WH, Scherman OA, Baumberg JJ. Citrate Coordination and Bridging of Gold Nanoparticles: The Role of Gold Adatoms in AuNP Aging. ACS Nano 2020; 14:8689-8696. [PMID: 32543831 PMCID: PMC7467807 DOI: 10.1021/acsnano.0c03050] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Gold nanoparticles used in many types of nanostructure are mostly stabilized by citrate ligands. Fully understanding their dynamic surface chemistry is thus essential for applications, particularly since aging is frequently a problem. Using surface-enhanced Raman spectroscopy in conjunction with density functional theory calculations, we are able to determine Au-citrate coordination in liquid with minimal invasiveness. We show that citrate coordination is mostly bidentate and simply controlled by its protonation state. More complex binding motifs are caused by interfering chloride ions and gold adatoms. With increasing age of stored gold nanoparticle suspensions, gold adatoms are found to move atop the Au facets and bind to an additional terminal carboxylate of the citrate. Aged nanoparticles are fully refreshed by removing these adatoms, using etching and subsequent boiling of the gold nanoparticles.
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Affiliation(s)
- David-Benjamin Grys
- NanoPhotonics
Centre, Cavendish Laboratory, Department of Physics, JJ Thompson Avenue, University of Cambridge, Cambridge, CB3 0HE, U.K.
| | - Bart de Nijs
- NanoPhotonics
Centre, Cavendish Laboratory, Department of Physics, JJ Thompson Avenue, University of Cambridge, Cambridge, CB3 0HE, U.K.
| | - Andrew R. Salmon
- NanoPhotonics
Centre, Cavendish Laboratory, Department of Physics, JJ Thompson Avenue, University of Cambridge, Cambridge, CB3 0HE, U.K.
| | - Junyang Huang
- NanoPhotonics
Centre, Cavendish Laboratory, Department of Physics, JJ Thompson Avenue, University of Cambridge, Cambridge, CB3 0HE, U.K.
| | - Wenting Wang
- NanoPhotonics
Centre, Cavendish Laboratory, Department of Physics, JJ Thompson Avenue, University of Cambridge, Cambridge, CB3 0HE, U.K.
| | - Wei-Hsin Chen
- NanoPhotonics
Centre, Cavendish Laboratory, Department of Physics, JJ Thompson Avenue, University of Cambridge, Cambridge, CB3 0HE, U.K.
| | - Oren A. Scherman
- Melville
Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Jeremy J. Baumberg
- NanoPhotonics
Centre, Cavendish Laboratory, Department of Physics, JJ Thompson Avenue, University of Cambridge, Cambridge, CB3 0HE, U.K.
- E-mail:
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20
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Han W, Chen Z, Niu P, Ren X, Ding C, Yu S. Development of a colloidal gold immunochromatographic strip for rapid detection of Riemerella anatipestifer in ducks. Poult Sci 2020; 99:4741-4749. [PMID: 32988508 PMCID: PMC7598101 DOI: 10.1016/j.psj.2020.06.035] [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: 01/10/2020] [Revised: 04/25/2020] [Accepted: 06/07/2020] [Indexed: 10/28/2022] Open
Abstract
Riemerella anatipestifer is one of the major bacterial pathogens of ducks and causes significant economic losses in poultry agriculture. Usually, methods for detecting R. anatipestifer infection need specialized equipment and highly skilled personnel. In this study, a novel colloidal gold immunochromatographic strip was developed for rapid detection of R. anatipestifer in ducks. The monoclonal antibodies 2D5 and 2A6 against R. anatipestifer were used as colloidal gold-labeled protein and capture protein, respectively, to recognize the bacteria in tryptic soy broth medium culture and in hearts of infected ducks. The goat anti-mouse IgG antibody was labeled on nitrocellulose membrane as a control for C line. The labeling pH was optimized as 10.0, and the concentration of 2D5 labeled to colloidal gold particles was optimized as 18 μg/mL. The strip specifically detected serotypes 1, 2, and 10 R. anatipestifer strains and showed no cross-reaction with Escherichia coli, Salmonella enterica, and Pasteurella multocida strains. The sensitivity of the strip for detecting R. anatipestifer was 1.0 × 106 colony forming unit. The strips remained stable for up to 8 mo at 4°C, and the detection can be completed within 15 min. The strip can detect R. anatipestifer in hearts of the ducks experimentally infected with R. anatipestifer but not infected with E. coli, which were also confirmed with bacterial isolation followed by multiplex polymerase chain reaction. These results suggested that the strips are reliable methods for identification of R. anatipestifer in laboratories and in duck farms.
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Affiliation(s)
- Wenlong Han
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
| | - Zongchao Chen
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
| | - Pengfei Niu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
| | - Xiaomei Ren
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
| | - Chan Ding
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
| | - Shengqing Yu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China; Jiangsu Agri-animal Husbandry Vocational College, Veterinary Bio-pharmaceutical, Jiangsu Key Laboratory for High-Tech Research and Development of Veterinary Biopharmaceuticals, Taizhou, Jiangsu, China.
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21
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Narasimh An AK, Chakaravarthi G, Rao MSR, Arunachalam K. Study of absorption of radio frequency field by gold nanoparticles and nanoclusters in biological medium. Electromagn Biol Med 2020; 39:183-195. [PMID: 32408843 DOI: 10.1080/15368378.2020.1762637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Gold nanoparticles (AuNPs) and gold nanoclusters (AuNCs) are gaining interest in medical diagnosis and therapy as they are bio-compatible and are easy to functionalize. Their interaction with radiofrequency (RF) field for hyperthermia treatment is ambiguous and needs further investigation. A systematic study of the absorption of capacitive RF field by AuNPs and AuNCs dispersed in phosphate-buffered saline (PBS) is reported here in tissue mimicking phantom. The stability of AuNPs and AuNCs dispersed in PBS was confirmed for a range of pH and temperature expected during RF hyperthermia treatment. Colloidal gold solutions with AuNPs (10 nm) and AuNCs (2 nm), and control, i.e. PBS without nanogold, were loaded individually in 3 ml wells in a tissue phantom. Phantom heating was carried out using 27 MHz short-wave diathermy equipment at 200 and 400 W for control and colloidal gold solutions. Experiments were conducted for colloidal gold at varying gold concentrations (10-100 µg/ml). Temperature rise measured in the phantom wells did not show dependence on the concentration and size of the AuNPs. Furthermore, temperature rise recorded in the control was comparable with the measurements recorded in both nanogold suspensions (2, 10 nm). Dielectric property measurements of control and colloidal gold showed <3% difference in electrical conductivity between the control and colloidal gold for both nanoparticle sizes. From the measurements, it is concluded that AuNPs and AuNCs do not enhance the absorption of RF-capacitive field and power absorption observed in the biological medium is due to the ions present in the medium.
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Affiliation(s)
- Ashwin Kumar Narasimh An
- Department of Biomedical Engineering, SRM Institute of Science and Technology , Kattankulathur, India
| | - Geetha Chakaravarthi
- Department of Instrumentation and Control Engineering, NIT Trichy , Tiruchirappalli, India
| | - M S Ramachandra Rao
- Nano Functional Materials Technology Centre, Department of Physics, Indian Institute of Technology Madras , Chennai, India
| | - Kavitha Arunachalam
- Department of Engineering Design, Indian Institute of Technology Madras , Chennai, India
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22
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Kitisripanya T, Sermpradit W, Sakamoto S, Tanaka H, Putalun W. An estimated quantitative lateral flow immunoassay for determination of artesunate using monoclonal antibody. Biomed Chromatogr 2019; 34:e4718. [PMID: 31642080 DOI: 10.1002/bmc.4718] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 05/04/2019] [Revised: 09/20/2019] [Accepted: 09/29/2019] [Indexed: 11/08/2022]
Abstract
There have been reports of fake artesunate (ART), which has led to deaths from untreated malaria in South East Asia. To rapidly screen for fake and adulterated ART products in the drug market, a lateral flow immunoassay (LFIA) based on a colloidal gold-monoclonal antibody probe for detection of ART within samples was developed. With this method, the calibration curve for ART was determined by the intensity ratio of the test and control bands at various ART concentrations. The linearity range was 12.5-200 μg/ml of ART. Samples were tested by the developed LFIA and can be calculated for ART contents. The levels of ART in the samples were also confirmed by enzyme-linked immunosorbent assay. The results of the two methods were in good conformance. The proposed LFIA was demonstrated to be a simple and rapid analytical method for detecting ART in the pharmaceutical formulation.
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Affiliation(s)
- Tharita Kitisripanya
- Department of Pharmacognosy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | - Witcha Sermpradit
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand.,Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology, National Research University-Khon Kaen University, Khon Kaen, Thailand
| | - Seiichi Sakamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Tanaka
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand.,Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology, National Research University-Khon Kaen University, Khon Kaen, Thailand
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23
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Shi F, Sun Y, Wu Y, Zhu M, Feng D, Zhang R, Peng L, Chen C. A novel, rapid and simple method for detecting brucellosis based on rapid vertical flow technology. J Appl Microbiol 2019; 128:794-802. [PMID: 31715073 DOI: 10.1111/jam.14519] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 08/11/2019] [Revised: 10/29/2019] [Accepted: 11/11/2019] [Indexed: 12/29/2022]
Abstract
AIMS To prevent the spread of brucellosis, a simple and rapid vertical flow technology (RVFT) for the detection of antibodies targeting brucellosis was developed. METHODS AND RESULTS In this study, Brucella sp. lipopolysaccharide was purified and used to detect brucellosis antibodies. Sheep IgG was used as a negative control. Colloidal gold-labeled recombinant staphylococcus aureus protein A was sprayed on a fibreglass membrane to prepare immunogold pads. Rapid vertical flow technology was used to detect Brucella in 1668 Sheep, 2743 bovine, 674 red deer and 420 human samples. The results indicated that the accuracy of this assay can reach 98%. CONCLUSIONS The established RVFT uses a single multifunctional buffer that can be used to detect antibodies in serum, plasma, whole blood and other biological samples while preserving the advantages of lateral-flow immunoassays. SIGNIFICANCE AND IMPACT OF THE STUDY This technology would be of great use in primary medical units and veterinary stations, and it is of great significance for the control of epidemic diseases.
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Affiliation(s)
- F Shi
- College of Life Sciences, Shihezi University, Xinjiang, Shihezi, P.R. China
| | - Y Sun
- College of Life Sciences, Shihezi University, Xinjiang, Shihezi, P.R. China
| | - Y Wu
- College of Life Sciences, Shihezi University, Xinjiang, Shihezi, P.R. China
| | - M Zhu
- College of Life Sciences, Shihezi University, Xinjiang, Shihezi, P.R. China
| | - D Feng
- College of Life Sciences, Shihezi University, Xinjiang, Shihezi, P.R. China
| | - R Zhang
- College of Life Sciences, Shihezi University, Xinjiang, Shihezi, P.R. China
| | - L Peng
- College of Life Sciences, Shihezi University, Xinjiang, Shihezi, P.R. China
| | - C Chen
- College of Animal Science and Technology, Shihezi University, Xinjiang, Shihezi, P.R. China
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24
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Ray M, Achary KG, Nayak S, Singh S. Development of a colloidal gold strip-based immunochromatographic assay for rapid detection of Fusarium oxysporum in ginger. J Sci Food Agric 2019; 99:6155-6166. [PMID: 31206685 DOI: 10.1002/jsfa.9859] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/03/2019] [Accepted: 06/06/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Rhizome rot, caused primarily by Fusarium oxysporum, is one of the most destructive diseases leading to significant loss in ginger worldwide. The loss can be greatly reduced by proper disease management practices steered by accurate and early diagnosis of pathogens. Pathogen detection at an early stage of infection can also reduce the incidence of disease epidemics. Classical methods are often time consuming, relying on culturing the putative pathogens and the availability of expert taxonomic skills for accurate identification, which leads to the delayed application of control measures. The development of a simple, rapid, sensitive and cost-effective point-of-care diagnostic tool is thus one of the major research priorities for rhizome rot. RESULTS The 65 kDa, immunoreactive protein band was selected as a diagnostic marker and was subjected to MS analysis followed by blastp. Based on blast result, a synthetic antigenic peptide was synthesized, and used to generate pAbs. The peptide-specific antibodies were used to develop a colloidal gold immunochromatographic assay (ICA). The sensitivity, specificity, and accuracy of ICA were 92.59%, 81.25%, and 90%, respectively. The ICA has a visual detection limit of 2.122 μg mL-1 for infected rhizome samples and 5.065 μg mL-1 for leaf samples with optimal detection time within 5 min. Moreover, the ICA also detected early stage infected samples, of which 71.42% (50/70) were true positives. CONCLUSION Findings from this study indicated that the assay can be utilized as a tool for the investigation of rhizome rot infection in field samples. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Monalisa Ray
- Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, India
| | - K Gopinath Achary
- Centre for Biotechnology, Imgenex India Pvt. Ltd, Bhubaneswar, India
| | - Sanghamitra Nayak
- Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, India
| | - Shikha Singh
- Department of Monoclonal Antibody, Rama Devi Women's University, Bhubaneswar, India
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25
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Di Nardo F, Cavalera S, Baggiani C, Giovannoli C, Anfossi L. Direct vs Mediated Coupling of Antibodies to Gold Nanoparticles: The Case of Salivary Cortisol Detection by Lateral Flow Immunoassay. ACS Appl Mater Interfaces 2019; 11:32758-32768. [PMID: 31381297 DOI: 10.1021/acsami.9b11559] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Stable and efficient conjugates between antibodies and gold nanoparticles (GNP-Ab) are sought to develop highly sensitive and robust biosensors with applications in medicine, toxicology, food safety controls, and targeted drug delivery. Several strategies have been proposed for directing the antibody attachment to GNPs thus preserving antibody activity, including covalently coupling the antibody to a polymer grafted on GNP surface and exploiting the high affinity of bioreceptors as mediators for the binding. Both approaches also allow for shielding GNPs with a protective layer that guarantees the robustness of the conjugate. Notwithstanding, antibodies freely adsorb to GNP with high binding efficiency. The nonspecific adsorption is far more simple, fast, and inexpensive than any mediated coupling. Therefore, it is preferred for most applications, although it is considered to produce GNP-Ab with a limited activity. In this work, we compared three strategies for producing GNP-Ab, such as (i) covalent coupling mediated by a chemical layer, (ii) affinity-based binding mediated by a biomolecular layer composed of Staphylococcal protein A, and (iii) direct attachment via adsorption. The so-prepared GNP-Ab were employed as probes in a colorimetric lateral flow immunoassay (LFIA) for measuring salivary cortisol as a model biosensor that relies on the use of active GNP-Ab conjugates. Unexpectedly, the biosensors fabricated using the three probes were completely comparable in terms of their ability to measure salivary cortisol. Furthermore, we observed that the sensitivity of the LFIA primarily depended on the amount of the antibody bound to GNPs rather than on the method by which it was bound. The probes prepared using both the direct adsorption approach and mediated coupling via the biochemical mediator enabled development of point-of-care devices for the fast, sensitive, and reliable measurement of human salivary cortisol.
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Affiliation(s)
- Fabio Di Nardo
- Department of Chemistry , University of Turin , Via P. Giuria 5 , 10125 Torino , Italy
| | - Simone Cavalera
- Department of Chemistry , University of Turin , Via P. Giuria 5 , 10125 Torino , Italy
| | - Claudio Baggiani
- Department of Chemistry , University of Turin , Via P. Giuria 5 , 10125 Torino , Italy
| | - Cristina Giovannoli
- Department of Chemistry , University of Turin , Via P. Giuria 5 , 10125 Torino , Italy
| | - Laura Anfossi
- Department of Chemistry , University of Turin , Via P. Giuria 5 , 10125 Torino , Italy
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26
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Wang L, Duan Z. [Development of Colloidal Gold Detector Instrument Based on CMOS Image Processing]. Zhongguo Yi Liao Qi Xie Za Zhi 2019; 43:112-114. [PMID: 30977608 DOI: 10.3969/j.issn.1671-7104.2019.02.010] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This paper introduces a kind of immune colloidal gold detector instrument from the aspects of machinery,hardware and software.The instrument first collects one image through a CMOS sensor and then analyzes the image with image processing algorithm on Linux platform.Firstly,the instrument sets and stores the parameters separately for each test item,and then calls the saved item parameters when testing the item sample.So,the instrument can be used in a variety of fields and items.In this paper,a quantitative experimental test on C-reactive protein sample was performed,and the results indicate the coefficient of determination what denoted R2 equal to 0.99,and the repeatability is greater than 93%.
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Affiliation(s)
- Lei Wang
- Tianjin Paipudaye Instrument Technology Co Ltd, Tianjin, 300400
| | - Zhichao Duan
- Tianjin Paipudaye Instrument Technology Co Ltd, Tianjin, 300400
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27
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Jing J, Wang Z. [Research advance of lateral flow assay labels]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 2018; 35:661-664. [PMID: 30124034 DOI: 10.7507/1001-5515.201703005] [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] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Lateral flow assay is widely used in the point-of-care testing on-site and in-home testing with the advantage of being simple, rapid, sensitive and cost-effective. Proper labels are the key factors in lateral flow assay. Traditional labels include colloidal gold, selenium nanoparticle, and carbon nanoparticle, among which the colloidal gold is most commonly used. Lateral flow assay has been improved as a result of the discovery of new labels, such as quantum dots and nanozyme recently. Meanwhile, transformation of qualitative detection to quantitative detection is gradually realized. This article aims at introducing the most often used and the latest lateral flow assay labels, providing a basis theoretical investigation on screening proper labels for lateral flow assay researchers.
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Affiliation(s)
- Jing Jing
- Joint National Laboratory for Antibody Drug Engineering, Key Lab of Cellular and Molecular Immunology, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R.China
| | - Zhizeng Wang
- Joint National Laboratory for Antibody Drug Engineering, Key Lab of Cellular and Molecular Immunology, School of Basic Medical Sciences, Henan University, Kaifeng, Henan 475004, P.R.China
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28
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Yang X, Sun Z, Tian F, Jia G, Yang J, Hu X. A lateral flow immunochromatographic strip test for rapid detection of hexoestrol in fish samples. R Soc Open Sci 2018; 5:180504. [PMID: 30225042 PMCID: PMC6124078 DOI: 10.1098/rsos.180504] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
A lateral flow immunochromatographic strip test was developed for rapid and sensitive on-site detection of hexoestrol (HES) residues in fish samples with colloidal gold labelling of the anti-HES monoclonal antibody. The strip is composed of a sample pad, a conjugate reagent pad, an absorbent pad and a test membrane containing a control line and a test line. The sensitivity (half inhibitory concentration, IC50) of the strip in the detection of fish extract samples was confirmed to be 1.86 µg kg-1, and the limit of detection value was 0.62 µg kg-1. For intra-assay and inter-assay reproducibility, recoveries of HES-spiked samples ranged from 86.3% to 92.3% and 85.8% to 93.4%, coefficients of variation were 2.91-4.64% and 4.24-5.17%, respectively. High-performance liquid chromatography was employed to confirm the performance of the strip. The strip test takes less than 10 min, and thus provides a repaid method for on-site detection of HES residues.
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Affiliation(s)
- Xingdong Yang
- Institute of Food and Drug Inspection, Zhoukou Normal University, Zhoukou 466001, People's Republic of China
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, People's Republic of China
| | - Zhongke Sun
- Institute of Food and Drug Inspection, Zhoukou Normal University, Zhoukou 466001, People's Republic of China
| | - Fengshou Tian
- Institute of Food and Drug Inspection, Zhoukou Normal University, Zhoukou 466001, People's Republic of China
| | - Guochao Jia
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, People's Republic of China
| | - Jifei Yang
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, People's Republic of China
| | - Xiaofei Hu
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, People's Republic of China
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29
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Yu X, Wei L, Chen H, Niu X, Dou Y, Yang J, Wang Z, Tang Y, Diao Y. Development of Colloidal Gold-Based Immunochromatographic Assay for Rapid Detection of Goose Parvovirus. Front Microbiol 2018; 9:953. [PMID: 29867859 PMCID: PMC5961387 DOI: 10.3389/fmicb.2018.00953] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 12/27/2017] [Accepted: 04/24/2018] [Indexed: 12/02/2022] Open
Abstract
Goose parvovirus (GPV) remains as a worldwide problem in goose industry. For this reason, it is necessary to develop a new diagnostic approach that is easier and faster than conventional tests. A rapid immunochromatographic assay based on antibody colloidal gold nanoparticles specific to GPV was developed for the detection of GPV in goose allantoic fluid and supernatant of tissue homogenate. The monoclonal antibodies (Mab) was produced by immunizing the BALB/c mice with purified GPV suspension, and the polyclonal antibody (pAb) was produced by immunizing the rabbits with recombinant VP3 protein. The colloidal gold was prepared by the reduction of gold salt with sodium citrate coupled with Mab against GPV. The optimal concentrations of the coating antibody and capture antibody were determined to be 1.6 mg/ml and 9 μg/ml. With visual observation, the lower limit was found to be around 1.2 μg/ml. Common diseases of goose were tested to evaluate the specificity of the immune colloidal gold (ICG) strip, and no cross-reaction was observed. The clinical detection was examined by carrying out the ICG strip test with 92 samples and comparing the results of these tests with those obtained via agar diffusion test and polymerase chain reaction (PCR) test. Therefore, the ICG strip test was a sufficiently sensitive and accurate detection method for a rapid screening of GPV.
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Affiliation(s)
- Xianglong Yu
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, China
| | - Lei Wei
- Tai'an City Central Hospital, Tai'an, China
| | - Hao Chen
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, China
| | - Xiaoyu Niu
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, China
| | - Yanguo Dou
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, China
| | - Jing Yang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, China
| | - Zhenzhong Wang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, China
| | - Yi Tang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, China
| | - Youxiang Diao
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, China
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30
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Faa G, Gerosa C, Fanni D, Lachowicz JI, Nurchi VM. Gold - Old Drug with New Potentials. Curr Med Chem 2018; 25:75-84. [PMID: 28359231 DOI: 10.2174/0929867324666170330091438] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [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: 10/12/2016] [Revised: 02/03/2017] [Accepted: 03/03/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Research into gold-based drugs for a range of human diseases has seen a revival in recent years. This article reviews the most important applications of gold products in different fields of human pathology. Au(I) and Au(III) compounds have been re-introduced in clinical practice for targeting the cellular components involved in the onset and progression of viral and parasitic diseases, rheumatoid arthritis and cancer. RESULTS After some brief historical notes, this article takes into account the applications of gold compounds against Mycobacterium tuberculosis, and also in tuberculosis and in rheumatoid arthritis treatment. The use of gold containing drugs in the cure of cancer are then considered, with special emphasis to the use of nanoparticles and to the photo-thermal cancer therapy. The use of colloidal gold in diagnostics, introduced in the last decade is widely discussed. As a last point a survey on the adverse effects and on the toxicity of the various gold derivatives in use in medicine is presented. CONCLUSION In this review, we described the surprisingly broad spectrum of possible uses of gold in diagnostics and in therapeutic approaches to multiple human diseases, ranging from degenerative to infectious diseases, and to cancer. In particular, gold nanoparticles appear as attractive elements in modern clinical medicine, combining high therapeutic properties, high selectivity in targeting cancer cells and low toxicity.
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Affiliation(s)
- Gavino Faa
- Dipartimento di Scienze Chirurgiche, Anatomia Patologica, University of Cagliari, Via Ospedale 46, I- 09124 Cagliari. Italy
| | - Clara Gerosa
- Dipartimento di Scienze Chirurgiche, Anatomia Patologica, University of Cagliari, Via Ospedale 46, I- 09124 Cagliari. Italy
| | - Daniela Fanni
- Dipartimento di Scienze Chirurgiche, Anatomia Patologica, University of Cagliari, Via Ospedale 46, I- 09124 Cagliari. Italy
| | - Joanna I Lachowicz
- Dipartimento di Scienze Chimiche e Geologiche, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato-Cagliari, Cagliari. Italy
| | - Valeria M Nurchi
- Dipartimento di Scienze Chimiche e Geologiche, University of Cagliari, Cittadella Universitaria, I-09042 Monserrato-Cagliari, Cagliari. Italy
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Limsuwanchote S, Putalun W, Tanaka H, Morimoto S, Keawpradub N, Wungsintaweekul J. Development of an immunochromatographic strip incorporating anti-mitragynine monoclonal antibody conjugated to colloidal gold for kratom alkaloids detection. Drug Test Anal 2017; 10:1168-1175. [PMID: 29287305 DOI: 10.1002/dta.2354] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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: 08/03/2017] [Revised: 12/09/2017] [Accepted: 12/20/2017] [Indexed: 02/01/2023]
Abstract
A lateral flow-based immunochromatographic strip was developed for the rapid detection of mitragynine (MG), a dominant alkaloid found in the leaves of kratom. Monoclonal antibody (mAb) against MG (anti-MG mAb) was conjugated to colloidal gold and used as a recognition probe. MG-ovalbumin conjugate (MG-OVA) and goat anti-mouse IgG were immobilized on the strip to produce a test zone and control zone, respectively. Based on the principle of a competitive assay, MG in a test sample competed with MG-OVA resident in the test zone to bind with colloidal gold-anti-MG mAb, resulting in an inverse relation of color intensity at the test zone and MG amount. The limit of detection (LOD) of the immunochromatographic strip is determined at 1 mg/mL of MG by visual assessment and 0.60 mg/mL by Image J analysis. The developed immunochromatographic strip can determine MG in kratom cocktails and kratom leaf samples. It could serve as a rapid and simple diagnostic kit for the detection of MG in kratom samples.
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Affiliation(s)
- Supattra Limsuwanchote
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Songkhla, Thailand
- Department of Pharmacology, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Thailand
| | - Hiroyuki Tanaka
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Satoshi Morimoto
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Niwat Keawpradub
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Songkhla, Thailand
| | - Juraithip Wungsintaweekul
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Songkhla, Thailand
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Yao J, Sun Y, Li Q, Wang F, Teng M, Yang Y, Deng R, Hu X. Colloidal gold-McAb probe-based rapid immunoassay strip for simultaneous detection of fumonisins in maize. J Sci Food Agric 2017; 97:2223-2229. [PMID: 27616272 DOI: 10.1002/jsfa.8032] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/05/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Fumonisins are a kind of toxic and carcinogenic mycotoxin. A rapid immunochromatographic test strip has been developed for simultaneous detection of fumonisin B1 , B2 and B3 (FB1 , FB2 and FB3 ) in maize based on colloidal gold-labelled monoclonal antibody (McAb) against FB1 probe. RESULTS The anti-FB1 McAb (2E11-H3) was produced through immunisation and cell fusion, and identified as high affinity, specificity and sensitivity. The cross-reaction ratios with fumonisin B2 and B3 were accordingly 385% and 72.4%, while none with other analogues. The colloid gold-labelled anti-FB1 McAb probe was successfully prepared and used for establishing the immunochromatographic strip. The test strip showed high sensitivity and specificity, the IC50 for FB1 was 58.08 ng mL-1 , LOD was 11.24 ng mL-1 , calculated from standard curve. Moreover, the test strip exhibited high cross-reactivity with FB2 and FB3 , and could be applied to the simultaneous detection of FBs (FB1 :FB2 :FB3 = 12:4:1) in maize sample with high accuracy and precision. The average recoveries of FBs in maize ranged from 90.42% to 95.29%, and CVs were 1.25-3.77%. The results of the test strip for FBs samples showed good correlation with high-performance liquid chromatography analysis. CONCLUSION The immunochromatographic test strip could be employed in the rapid simultaneous detection of FB1 , FB2 and FB3 in maize samples on-site. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Jingjing Yao
- Henan Academy of Agriculture Science/Key Laboratory of Animal Immunology, Ministry of Agriculture/Henan key Laboratory of Animal Immunology, Zhengzhou, 450002, China
| | - Yaning Sun
- Henan Academy of Agriculture Science/Key Laboratory of Animal Immunology, Ministry of Agriculture/Henan key Laboratory of Animal Immunology, Zhengzhou, 450002, China
| | - Qingmei Li
- Henan Academy of Agriculture Science/Key Laboratory of Animal Immunology, Ministry of Agriculture/Henan key Laboratory of Animal Immunology, Zhengzhou, 450002, China
| | - Fangyu Wang
- Henan Academy of Agriculture Science/Key Laboratory of Animal Immunology, Ministry of Agriculture/Henan key Laboratory of Animal Immunology, Zhengzhou, 450002, China
| | - Man Teng
- Henan Academy of Agriculture Science/Key Laboratory of Animal Immunology, Ministry of Agriculture/Henan key Laboratory of Animal Immunology, Zhengzhou, 450002, China
| | - Yanyan Yang
- Henan Academy of Agriculture Science/Key Laboratory of Animal Immunology, Ministry of Agriculture/Henan key Laboratory of Animal Immunology, Zhengzhou, 450002, China
| | - Ruiguang Deng
- Henan Academy of Agriculture Science/Key Laboratory of Animal Immunology, Ministry of Agriculture/Henan key Laboratory of Animal Immunology, Zhengzhou, 450002, China
| | - Xiaofei Hu
- Henan Academy of Agriculture Science/Key Laboratory of Animal Immunology, Ministry of Agriculture/Henan key Laboratory of Animal Immunology, Zhengzhou, 450002, China
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Abstract
In July 2015 Professor K.T. Tokuyasu passed away in San Diego giving us the opportunity to reflect on the contribution this electron microscopist made to the field of immunocytochemistry. His work provided a sensitive, minimally invasive approach to producing thin sections of biological material for labeling with antibodies. His approach has been applied to a wide range of biological applications and provided important information on cellular processes.
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Affiliation(s)
| | - Jan-Willem Slot
- Department of Cell Biology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Paul Webster
- Oak Crest Institute of Science, Monrovia, California, U.S.A
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Streich C, Akkari L, Decker C, Bormann J, Rehbock C, Müller-Schiffmann A, Niemeyer FC, Nagel-Steger L, Willbold D, Sacca B, Korth C, Schrader T, Barcikowski S. Characterizing the Effect of Multivalent Conjugates Composed of Aβ-Specific Ligands and Metal Nanoparticles on Neurotoxic Fibrillar Aggregation. ACS Nano 2016; 10:7582-7597. [PMID: 27404114 DOI: 10.1021/acsnano.6b02627] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Therapeutically active small molecules represent promising nonimmunogenic alternatives to antibodies for specifically targeting disease-relevant receptors. However, a potential drawback compared to antibody-antigen interactions may be the lower affinity of small molecules toward receptors. Here, we overcome this low-affinity problem by coating the surface of nanoparticles (NPs) with multiple ligands. Specifically, we explored the use of gold and platinum nanoparticles to increase the binding affinity of Aβ-specific small molecules to inhibit Aβ peptide aggregation into fibrils in vitro. The interactions of bare NPs, free ligands, and NP-bound ligands with Aβ are comprehensively studied via physicochemical methods (spectroscopy, microscopy, immunologic tests) and cell assays. Reduction of thioflavin T fluorescence, as an indicator for β-sheet content, and inhibition of cellular Aβ excretion are even more effective with NP-bound ligands than with the free ligands. The results from this study may have implications in the development of therapeutics for treating Alzheimer's disease.
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Affiliation(s)
- Carmen Streich
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen , 45141 Essen, Germany
| | - Laura Akkari
- Institute for Organic Chemistry, University of Duisburg-Essen , 45117 Essen, Germany
| | - Christina Decker
- Institut für Physikalische Biologie, Heinrich-Heine-University Düsseldorf , 40225 Düsseldorf, Germany
| | - Jenny Bormann
- Chemical Biology, Zentrum für Medizinische Biotechnologie (ZMB), Fakultät für Biologie, Universtität Duisburg-Essen , 45117 Essen, Germany
| | - Christoph Rehbock
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen , 45141 Essen, Germany
| | | | | | - Luitgard Nagel-Steger
- Institut für Physikalische Biologie, Heinrich-Heine-University Düsseldorf , 40225 Düsseldorf, Germany
- Institute of Complex Systems, Structural Biochemistry (ICS-6), Research Centre Jülich , 52425 Jülich, Germany
| | - Dieter Willbold
- Institut für Physikalische Biologie, Heinrich-Heine-University Düsseldorf , 40225 Düsseldorf, Germany
- Institute of Complex Systems, Structural Biochemistry (ICS-6), Research Centre Jülich , 52425 Jülich, Germany
| | - Barbara Sacca
- Bionanotechnology, Zentrum für Medizinische Biotechnologie (ZMB), Fakultät für Biologie, University of Duisburg-Essen , 45117 Essen, Germany
| | - Carsten Korth
- Department Neuropathology, University of Düsseldorf Medical School , 40225 Düsseldorf, Germany
| | - Thomas Schrader
- Institute for Organic Chemistry, University of Duisburg-Essen , 45117 Essen, Germany
| | - Stephan Barcikowski
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen , 45141 Essen, Germany
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Sun Y, Xing G, Yang J, Wang F, Deng R, Zhang G, Hu X, Zhang Y. Development of an immunochromatographic test strip for simultaneous qualitative and quantitative detection of ochratoxin A and zearalenone in cereal. J Sci Food Agric 2016; 96:3673-3678. [PMID: 26612142 DOI: 10.1002/jsfa.7550] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 10/13/2015] [Accepted: 11/22/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Ochratoxin A (OTA) and zearalenone (ZEN) are natural products of filamentous fungi that are harmful to humans and animals exposed to them even in extremely low concentration. The immunochromatographic test strip has become a popular diagnostic tool for detecting analytes. Its major advantages are that results can be obtained within 5-10 min, all needed reagents are included in the strip and it can be used to detect OTA and ZEN contamination in spots. In this study a colloidal gold-based immunochromatographic test strip of competitive format was developed for the rapid simultaneous qualitative and quantitative detection of OTA and ZEN in corn and other cereals. RESULTS The test strip results with the naked eye showed that the sensitivities were 6 µg kg(-1) OTA and 20 µg kg(-1) ZEN in cereal, while those with a TSR3000 membrane strip reader showed that the IC50 values of OTA and ZEN were 1.7905 and 4.3514 ng mL(-1) and the lower detection limit (LDL) values were 0.7697 and 1.2000 µg kg(-1) respectively. These results were confirmed by high-performance liquid chromatography. CONCLUSION The immunochromatographic test strip developed in this study could be used for the rapid simultaneous, qualitative and quantitative screening of OTA and ZEN in corn samples. © 2015 Society of Chemical Industry.
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Affiliation(s)
- Yaning Sun
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Guangxu Xing
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Jifei Yang
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Fangyu Wang
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Ruiguang Deng
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Gaiping Zhang
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xiaofei Hu
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Yong Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China
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Wang J, Katani R, Li L, Hegde N, Roberts EL, Kapur V, DebRoy C. Rapid Detection of Escherichia coli O157 and Shiga Toxins by Lateral Flow Immunoassays. Toxins (Basel) 2016; 8:92. [PMID: 27023604 PMCID: PMC4848619 DOI: 10.3390/toxins8040092] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 03/18/2016] [Accepted: 03/22/2016] [Indexed: 12/20/2022] Open
Abstract
Shiga toxin-producing Escherichia coli O157:H7 (STEC) cause food-borne illness that may be fatal. STEC strains enumerate two types of potent Shiga toxins (Stx1 and Stx2) that are responsible for causing diseases. It is important to detect the E. coli O157 and Shiga toxins in food to prevent outbreak of diseases. We describe the development of two multi-analyte antibody-based lateral flow immunoassays (LFIA); one for the detection of Stx1 and Stx2 and one for the detection of E. coli O157 that may be used simultaneously to detect pathogenic E. coli O157:H7. The LFIA strips were developed by conjugating nano colloidal gold particles with monoclonal antibodies against Stx1 and Stx2 and anti-lipid A antibodies to capture Shiga toxins and O157 antigen, respectively. Our results indicate that the LFIA for Stx is highly specific and detected Stx1 and Stx2 within three hours of induction of STEC with ciprofloxacin at 37 °C. The limit of detection for E. coli O157 LFIA was found to be 105 CFU/mL in ground beef spiked with the pathogen. The LFIAs are rapid, accurate and easy to use and do not require sophisticated equipment or trained personnel. Following the assay, colored bands on the membrane develop for end-point detection. The LFIAs may be used for screening STEC in food and the environment.
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Affiliation(s)
| | - Robab Katani
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, 115 Henning Building, University Park, PA 16802, USA.
| | - Lingling Li
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, 115 Henning Building, University Park, PA 16802, USA.
| | - Narasimha Hegde
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, 115 Henning Building, University Park, PA 16802, USA.
| | - Elisabeth L Roberts
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, 115 Henning Building, University Park, PA 16802, USA.
| | - Vivek Kapur
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, 115 Henning Building, University Park, PA 16802, USA.
| | - Chitrita DebRoy
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, 115 Henning Building, University Park, PA 16802, USA.
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Chen W, Jin Y, Liu A, Wang X, Chen F. Rapid detection of ochratoxin A on membrane by dot immunogold filtration assay. J Sci Food Agric 2016; 96:610-614. [PMID: 25678129 DOI: 10.1002/jsfa.7130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 01/30/2015] [Accepted: 02/04/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Ochratoxin A (OTA), a widely distributed mycotoxin produced by certain species of Aspergillus and Penicillium, has been identified as a carcinogenic, hepatotoxic, teratogenic, nephrotoxic and immunotoxic toxin. To reduce the risk of OTA contamination, a rapid, inexpensive, suitable and on-site assay for its detection is required. RESULTS In this study a dot immunogold filtration assay (DIGFA) of OTA on high-flow nitrocellulose membrane was developed. Firstly colloidal gold was synthesized and colloidal gold-polyclonal antibody (PcAb) conjugates against OTA were prepared at the optimal colloidal gold-labeled pH value and package amount. Then the colloidal gold-PcAb conjugates were used to develop the OTA DIGFA. The results demonstrated a visual detection limit of approximately 10 ng mL(-1) OTA. In addition, this method had no cross-reaction with zearalenone, aflatoxin B1 or citrinin. CONCLUSION These results indicated that the developed DIGFA could be applied for the actual detection of samples without complicated steps.
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Affiliation(s)
- Weifeng Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Yucui Jin
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Aiping Liu
- College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, China
| | - Xiaohong Wang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Fusheng Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
- State Key Laboratory of Agro-microbiology of China, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
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Zhang X, Wu C, Wen K, Jiang H, Shen J, Zhang S, Wang Z. Comparison of Fluorescent Microspheres and Colloidal Gold as Labels in Lateral Flow Immunochromatographic Assays for the Detection of T-2 Toxin. Molecules 2015; 21:E27. [PMID: 26729073 PMCID: PMC6273043 DOI: 10.3390/molecules21010027] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 12/07/2015] [Accepted: 12/17/2015] [Indexed: 12/21/2022] Open
Abstract
A new highly specific and sensitive monoclonal antibody (MAb) to T-2 toxin (T-2) was produced, providing an IC50 value of 1.02 ng/mL and negligible cross-reactivity (CR) to other related mycotoxins. Based on the new MAb, a lateral-flow immunochromatographic assay (LFIA) using colloidal gold (CG) and fluorescent microspheres (FMs) as labels was proposed for T-2. Under the optimized conditions, in rapid qualitative assay, the cut-off values of the CG-LFIA were 400 μg/kg in rice and 50 μg/L in fresh milk, and the cut-off values of the FMs-LFIA were 100 μg/kg in both rice and chicken feed. For the quantitative assay with the FMs-LFIA, the limit of detection (LOD) were 0.23 μg/kg and 0.41 μg/kg in rice and chicken feed, respectively, and the average recoveries ranged from 80.2% to 100.8% with the coefficient of variation (CV) below 10.8%. In addition, we found that the CG-LFIA could tolerate the matrix effect of fresh milk better than the FMs-LFIA, while the FMs-LFIA could tolerate the matrix effect of chicken feed better than CG-LFIA under the same experimental conditions. These results provide a certain reference for the selection of appropriate labels to establish a rapid LFIA in various biological samples.
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Affiliation(s)
- Xiya Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Chao Wu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Kai Wen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Haiyang Jiang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
- Beijing Laboratory for Food Quality and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Jianzhong Shen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
- National Reference Laboratory for Veterinary Drug Residues, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Suxia Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
| | - Zhanhui Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
- Beijing Laboratory for Food Quality and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
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Wang Y, Deng R, Zhang G, Li Q, Yang J, Sun Y, Li Z, Hu X. Rapid and sensitive detection of the food allergen glycinin in powdered milk using a lateral flow colloidal gold immunoassay strip test. J Agric Food Chem 2015; 63:2172-2178. [PMID: 25671495 DOI: 10.1021/jf5052128] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A rapid immunochromatographic lateral flow test strip in a sandwich format was developed with the colloidal gold-labeled mouse antiglycinin monoclonal antibody (mAb) and rabbit antiglycinin polyclonal antibody (pAb) to specifically identify glycinin, a soybean allergen. The test strip is composed of a sample pad, a conjugate reagent pad, an absorbent pad, and a test membrane containing a control line and a test line. This test strip has high sensitivity, and results can be obtained within 10 min without sophisticated procedures. The limit of detection (LOD) of the test strip was calculated to be 0.69 mg/kg using an optical density scanner that measures relative optical density. The assay showed high specificity for glycinin, with no cross-reactions with other soybean proteins or other food allergens. The recoveries of the lateral flow test strip in detecting glycinin in powdered milk samples ranged between 80.5 and 89.9% with relative standard deviations of less than 5.29% (intra-assay) and 6.72% (interassay). Therefore, the test strip is useful as a quantitative, semiquantitative, or qualitative detection method for glycinin in powdered milk. In addition, the test strip can be used to detect glycinin in other processed foods and may be a valuable tool in identifying effective approaches for reducing the impact of glycinin.
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Affiliation(s)
- Yao Wang
- College of Food Science and Engineering, Northwest A&F University , Yangling 712100, Shaanxi, China
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Tanaka M, Saito Y, Misu H, Kato S, Kita Y, Takeshita Y, Kanamori T, Nagano T, Nakagen M, Urabe T, Takamura T, Kaneko S, Takahashi K, Matsuyama N. Development of a Sol Particle Homogeneous Immunoassay for Measuring Full-Length Selenoprotein P in Human Serum. J Clin Lab Anal 2014; 30:114-22. [PMID: 25545464 DOI: 10.1002/jcla.21824] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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: 11/26/2013] [Accepted: 10/22/2014] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Selenoprotein P (SeP), a selenium-rich extracellular glycoprotein, is the primary selenoprotein in the plasma. SeP plays an important role in the maintenance of selenium levels in the peripheral tissues. We developed a new sol particle homogeneous immunoassay (SPIA) for measuring full-length SeP (FL-SeP) levels in the human serum. METHODS We used colloidal gold particles coated with two types of anti-SeP monoclonal antibodies, one recognizing the N-terminal side domain of SeP and the other recognizing the C-terminal side domain. RESULTS The assay range was 0.2-9 mg/l, and the linearity was excellent. The within-day and between-day coefficients of variation ranged from 0.73% to 2.24% and 0.45% to 1.11%, respectively. Serum samples (n = 200) were examined using the newly developed assay system (employing a Model 7070 Hitachi automatic clinical analyzer) and the conventional enzyme-linked immunosorbent assay. These two methods were compared using the Passing-Bablok regression analysis; the resulting regression equation and correlation coefficient were y = 0.940x + 0.165 and r = 0.954, respectively. CONCLUSIONS Our new SPIA assay is a fully automated homogeneous immunoassay that can be used in conjunction with various commercial analyzers. The assay was sensitive, precise, and suitable for clinical measurement of the FL-SeP in the human serum.
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Affiliation(s)
- Mutsumi Tanaka
- Diagnostic R&D, Development & Production Headquarters, Alfresa Pharma Corporation, Ibaraki City, Osaka, Japan
| | - Yoshiro Saito
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto, Japan
| | - Hirofumi Misu
- Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Seiji Kato
- Diagnostic R&D, Development & Production Headquarters, Alfresa Pharma Corporation, Ibaraki City, Osaka, Japan
| | - Yuki Kita
- Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Yumie Takeshita
- Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Takehiro Kanamori
- Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Toru Nagano
- Public Central Hospital of Matto Ishikawa, Hakusan, Ishikawa, Japan
| | | | - Takeshi Urabe
- Public Central Hospital of Matto Ishikawa, Hakusan, Ishikawa, Japan
| | - Toshinari Takamura
- Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Shuichi Kaneko
- Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Kazuhiko Takahashi
- Department of Nutritional Biochemistry, Hokkaido Pharmaceutical University, Otaru, Hokkaido, Japan
| | - Naoto Matsuyama
- Diagnostic R&D, Development & Production Headquarters, Alfresa Pharma Corporation, Ibaraki City, Osaka, Japan
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Sun Y, Hu X, Zhang Y, Yang J, Wang F, Wang Y, Deng R, Zhang G. Development of an immunochromatographic strip test for the rapid detection of zearalenone in corn. J Agric Food Chem 2014; 62:11116-11121. [PMID: 25343335 DOI: 10.1021/jf503092j] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A rapid immunochromatographic test strip has been developed for the detection of zearalenone (ZEN) residues in corn. For this purpose, a specific anti-ZEN monoclonal antibody (mAb), 4A3-F9, was obtained and identified. ZEN coupled to bovine serum albumin (BSA) via 1,4-butanediol diglycidyl ether was prepared as immunogen. The mAb showed low cross-reactivity with five ZEN analogues. Using an antibody preparation with a titer of ≥1:5.12 × 10(5), the cross-reactivity (CR) of the anti-ZEN monoclonal antibody with four of the analogues was <4%, except for zearalanone, which was 53.121%. The recovery rates of ZEN in spiked corn samples were in the range of 91.30-97.07% with coefficients of variation <5.32%. An immunochromatographic strip was developed using the specific anti-ZEN monoclonal antibody and applied to the screening of corn samples for ZEN residues. The test could be accomplished within 5-10 min. The sensitivity of the test strip in corn sample extract was confirmed to be 20 μg/kg by unaided visual assessment, and the IC50 was calculated as 3.4 ng/mL using a test strip reader. The test strip, analyzed by unaided visual assessment and strip reader, showed very good agreement with competitive indirect ELISA and high-performance liquid chromatography (HPLC) analysis for naturally contaminated corn samples.
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Affiliation(s)
- Yaning Sun
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Academy of Agricultural Sciences , Zhengzhou 450002, China
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Abstract
As a new type of biomaterials, gold nanoparticles (GNPs), also known as colloidal gold (CG), have a wide biomedical application. In this study, GNPs with diameters of 10, 15, and 25 nm were prepared by sodium citrate reduction, and detected by common optical property, ultraviolet-visible (UV-vis) absorbance spectroscopy, and scanning electron microscope (SEM), separately for identification of the particle size and uniformity. In order to observe the effects of GNPs on immune function, adult Sprague Dawley (SD) rats were immunized with the above three GNPs, each having three doses of 0.2, 0.4, and 0.6 ml, and rats without immunization served as negative control. After immunization, proliferation activity of blood and spleen lymphocyte and the levels of interleukin-2 (IL-2) in serum and supernatant of spleen lymphocyte were detected by thiazoleblue (MTT) assay and enzyme linked immunosorbent assay (ELISA), respectively. The results indicated that different size of GNPs was prepared, and the uniformity increased with the decrease of the size of particles. Different diameters and doses of GNPs have different effects on proliferation of blood and spleen lymphocyte, as well as the levels of IL-2 in serum and supernatant of spleen lymphocyte. The 15 nm CG in 0.6 ml dose group could most significantly promote blood and spleen lymphocyte proliferation, and enhance IL-2 levels in serum and supernatant of spleen lymphocyte. Taken together, the findings revealed that application of CG prepared by sodium citrate reduction could enhance specific and nonspecific immune responses, and the 0.6 ml dose of 15 nm CG might be the best immunizing dose in rats. This fact may serve as a further evidence for using CG as a novel immunoadjuvant in the future.
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Affiliation(s)
- Yong-Tang Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
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Tao C, Li G. A rapid one-step immunochromatographic test strip for rabies detection using canine serum samples. Lett Appl Microbiol 2014; 59:247-51. [PMID: 24820246 PMCID: PMC7165885 DOI: 10.1111/lam.12282] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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: 01/07/2014] [Revised: 04/17/2014] [Accepted: 05/07/2014] [Indexed: 12/18/2022]
Abstract
UNLABELLED We developed an immunochromatographic test strip using colloidal gold-coated staphylococcal protein A (SPA) for the detection of rabies antibody in canine serum samples. The recombinantly expressed rabies virus phosphoprotein (RV-P) and the anti-staphylococcal protein A (anti-SPA) polyclonal antibody were coated on the test (T) and control (C) lines on a nitrocellulose membrane, respectively. This layout is designed such that the polyclonal antibody in canine serum is captured by the colloidal gold-SPA conjugates, before the rabies antibody complex is specifically selected by the RV-P deposited on the T line, forming a 'sandwich' pattern. Unbound excess colloidal SPA then proceeds to the control line where SPA specifically interacts with the anti-SPA antibody, producing a red precipitation at the C line, indicating the validity of the strip. We tested 165 canine serum samples with the strips, and the results were compared with those obtained using ELISA. The specificity and sensitivity of ICTS were found to be 93·1 and 92·2%, respectively. As a rapid technique, not demanding expensive instrumentation, the strip offers potential in disease monitoring, especially in rabies-endemic developing countries. SIGNIFICANCE AND IMPACT OF THE STUDY Simple and cheap techniques to detect rabies virus or monitor immunity against it are central in maintaining epidemiological control over the disease, particularly in endemic developing countries. While many techniques meet this requirement, they are confined to this usage as they are time-consuming and demand expensive instrumentation. Our immunochromatographic test strip can detect rabies antibody with high specificity and sensitivity; the output can be measured with naked eye. It allows safe and quick detection that will be of value in the surveillance of the immunization status of potential targets in rabies-endemic regions and will aid disease control.
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Affiliation(s)
- C Tao
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing Scientific Observation and Experiment Station for Veterinary Drug and Veterinary Biotechnology, Ministry of Agriculture, Beijing, China; Guangxi Center for Disease Prevention and Control, Nanning, China
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Staroverov SA, Volkov AA, Fomin AS, Laskavuy VN, Mezhennyy PV, Kozlov SV, Larionov SV, Fedorov MV, Dykman LA, Guliy OI. The usage of phage mini-antibodies as a means of detecting ferritin concentration in animal blood serum. J Immunoassay Immunochem 2014; 36:100-10. [PMID: 24624967 DOI: 10.1080/15321819.2014.899257] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Mini-antibodies that have specific ferritin response have been produced for the first time using sheep's phage libraries (Griffin.1, Medical Research Council, Cambridge, UK). Produced phage antibodies were used for the first time for the development of diagnostic test kits for ferritin detection in the blood of cattle. The immunodot assay with secondary biospecific labeling is suggested as means of ferritin detection in cow blood serum (antiferritin phage antibodies and rabbit antiphage antibodies conjugated with different labels). Сolloidal gold, gold nanoshells, and horse reddish peroxidase used as labels have shown a similar response while detecting concentration of ferritin (0.2 mg/mL). It is shown that the method of solid-phase immunoassay with a visual view of the results allows determination of the minimum concentration of ferritin in the blood of cows at 0.225 g/mL.
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Sabir TS, Rowland L, Milligan JR, Yan D, Aruni AW, Chen Q, Boskovic DS, Kurti RS, Perry CC. Mechanistic investigation of seeded growth in triblock copolymer stabilized gold nanoparticles. Langmuir 2013; 29:3903-3911. [PMID: 23473268 PMCID: PMC4440571 DOI: 10.1021/la400387h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report the seeded synthesis of gold nanoparticles (GNPs) via the reduction of HAuCl4 by (L31 and F68) triblock copolymer (TBP) mixtures. In the present study, we focused on [TBP]/[Au(III)] ratios of 1-5 (≈1 mM HAuCl4) and seed sizes ~20 nm. Under these conditions, the GNP growth rate is dominated by both the TBP and seed concentrations. With seeding, the final GNP size distributions are bimodal. Increasing the seed concentration (up to ~0.1 nM) decreases the mean particle sizes 10-fold, from ~1000 to 100 nm. The particles in the bimodal distribution are formed by the competitive direct growth in solution and the aggregative growth on the seeds. By monitoring kinetics of GNP growth, we propose that (1) the surface of the GNP seeds embedded in the TBP cavities form catalytic centers for GNP growth and (2) large GNPs are formed by the aggregation of GNP seeds in an autocatalytic growth process.
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Affiliation(s)
- Theodore S. Sabir
- Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350
| | - Leah Rowland
- Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350
| | - Jamie R. Milligan
- Department of Radiology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093
| | - Dong Yan
- Center for Nanoscale Science and Engineering, University of California, Riverside, 900 University Avenue, Riverside, CA 92521
| | - A. Wilson Aruni
- Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350
| | - Qiao Chen
- Department of Chemistry, School of Life Sciences, University of Sussex, Brighton BN1 9QJ, United Kingdom
| | - Danilo S. Boskovic
- Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350
| | - R. Steven Kurti
- School of Dentistry, Loma Linda University, Loma Linda, CA 92350
| | - Christopher C. Perry
- Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350
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Fleischer CC, Kumar U, Payne CK. Cellular Binding of Anionic Nanoparticles is Inhibited by Serum Proteins Independent of Nanoparticle Composition. Biomater Sci 2013; 1:975-982. [PMID: 23956836 DOI: 10.1039/c3bm60121h] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanoparticles used in biological applications encounter a complex mixture of extracellular proteins. Adsorption of these proteins on the nanoparticle surface results in the formation of a "protein corona," which can dominate the interaction of the nanoparticle with the cellular environment. The goal of this research was to determine how nanoparticle composition and surface modification affect the cellular binding of protein-nanoparticle complexes. We examined the cellular binding of a collection of commonly used anionic nanoparticles: quantum dots, colloidal gold nanoparticles, and low-density lipoprotein particles, in the presence and absence of extracellular proteins. These experiments have the advantage of comparing different nanoparticles under identical conditions. Using a combination of fluorescence and dark field microscopy, flow cytometry, and spectroscopy, we find that cellular binding of these anionic nanoparticles is inhibited by serum proteins independent of nanoparticle composition or surface modification. We expect these results will aid in the design of nanoparticles for in vivo applications.
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Affiliation(s)
- Candace C Fleischer
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
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Basu S, Mukherjee B, Chowdhury SR, Paul P, Choudhury R, Kumar A, Mondal L, Hossain CM, Maji R. Colloidal gold-loaded, biodegradable, polymer-based stavudine nanoparticle uptake by macrophages: an in vitro study. Int J Nanomedicine 2012; 7:6049-61. [PMID: 23271908 PMCID: PMC3526149 DOI: 10.2147/ijn.s38013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE We describe the development, evaluation, and comparison of colloidal gold-loaded, poly(d,l-lactic-co-glycolic acid)-based nanoparticles containing anti-acquired immunodeficiency syndrome drug stavudine and uptake of these nanoparticles by macrophages in vitro. METHODS WE USED THE FOLLOWING METHODS IN THIS STUDY: drug-excipient interaction by Fourier transform infrared spectroscopy, morphology of nanoparticles by field-emission scanning electron microscopy, particle size by a particle size analyzer, and zeta potential and polydispersity index by a zetasizer. Drug loading and in vitro release were evaluated for formulations. The best formulation was incorporated with fluorescein isothiocyanate. Macrophage uptake of fluorescein isothiocyanate nanoparticles was studied in vitro. RESULTS Variations in process parameters, such as speed of homogenization and amount of excipients, affected drug loading and the polydispersity index. We found that the drug was released for a prolonged period (over 63 days) from the nanoparticles, and observed cellular uptake of stavudine nanoparticles by macrophages. CONCLUSION Experimental nanoparticles represent an interesting carrier system for the transport of stavudine to macrophages, providing reduced required drug dose and improved drug delivery to macrophages over an extended period. The presence of colloidal gold in the particles decreased the drug content and resulted in comparatively faster drug release.
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Affiliation(s)
- Sumit Basu
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
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Xu Y, Li M, Liu Z, Xi A, Zhao C, Zhang J. Scientific literature addressing detection of monosialoganglioside: A 10-year bibliometric analysis. Neural Regen Res 2012; 7:792-9. [PMID: 25737704 PMCID: PMC4345664 DOI: 10.3969/j.issn.1673-5374.2012.10.012] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Accepted: 03/28/2012] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE The study was undertaken to explore a bibliometric approach to quantitatively assess the research on detection of monosialoganglioside from 2002 to 2011. DATA RETRIEVAL A bibliometric analysis based on the publications on Web of Science was performed using key words such as "monosialoganglioside", "colloidal gold", "high performance liquid chromatography" and "detection". SELECTION CRITERIA (1) Research articles on the detection of monosialoganglioside; (2) researches on human and animal fundamentals, clinical trials and case reports; (3) article types: article, review, proceedings paper, note, letter, editorial material, discussion, book chapter; (4) Publication year: 2002-2011. EXCLUSION CRITERIA (1) unrelated articles; (2) type of articles: correction; (3) articles from following databases: all databases related to social science and arts & humanities in Web of Science were excluded. MAIN OUTCOME MEASURES (1) distribution of subject areas; (2) number of publications annually; (3) document type and language of publications; (4) distribution of institutions; (5) distribution of output in journals; (6) the number of countries in which the article is published; (7) top cited paper. RESULTS Overall population stands at 1 880 research articles addressing detection of monosialoganglioside in Web of Science during the study period. Articles (1 599) were the most frequently used document type comprising 85.05%, followed by meeting abstracts, reviews and proceedings papers. The distribution of subject categories showed that monosialoganglioside research covered both clinical and basic science research. The USA, Japan, and Italy were the three most productive countries, and the publication numbers in the USA were highest with 559 papers. The University of Milan, Nagoya University, and Kinki University are the most productive institutions regarding detection of monosialoganglioside. In 559 articles published by Americans, Medical College of Georgia ranked the first with 30 articles, followed by University of Medicine and Dentistry of New Jersey (28 articles), Cornell University (24 articles) and Johns Hopkins University (24 articles). In 442 articles published by Japanese, Nagoya University ranked the first with 40 articles, followed by Kinki University (36 articles), and Dokkyo University (31 articles). Though the total number of publications by Japanese is smaller than Americans, the top three institutions published more publications than American institutions. There is a markedly increase in the number of publications on the subject detection of monosialoganglioside in 2004, which the peak in the past 10 years. The valley bottom of the subject appeared in 2005. In total, the research is increased with time prolonged. Journal of Neurochemistry, Journal of Biological Chemistry and Journal of Neuroimmunology were core subject journals in monosialoganglioside studies. CONCLUSION This study highlights the topics in detection of monosialoganglioside research that are being published around the world.
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Affiliation(s)
- Yanli Xu
- Medical College of Hebei University of Engineering, Handan 056009, Hebei Province, China
| | - Miaojing Li
- School of Public Health, Mudanjiang Medical University, Mudanjiang 157011, Heilongjiang Province, China
| | - Zhijun Liu
- Medical College of Hebei University of Engineering, Handan 056009, Hebei Province, China
| | - Aiping Xi
- Medical College of Hebei University of Engineering, Handan 056009, Hebei Province, China
| | - Chaoxian Zhao
- Medical College of Hebei University of Engineering, Handan 056009, Hebei Province, China
| | - Jianzhong Zhang
- State Key Laboratory for Infectious Disease Prevention and Control; National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Qi H, Zhong Z, Zhou HX, Deng CY, Zhu H, Li JF, Wang XL, Li FR. A rapid and highly sensitive protocol for the detection of Escherichia coli O157:H7 based on immunochromatography assay combined with the enrichment technique of immunomagnetic nanoparticles. Int J Nanomedicine 2011; 6:3033-9. [PMID: 22163159 PMCID: PMC3235026 DOI: 10.2147/ijn.s25684] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [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] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Escherichia coli O157:H7 (E. coli O157:H7) is an important pathogenic bacterium that threatens human health. A rapid, simple, highly sensitive, and specific method for the detection of E. coli O157:H7 is necessary. METHODS In the present study, immunomagnetic nanoparticles (IMPs) were prepared with nanopure iron as the core, coated with E. coli O157:H7 polyclonal antibodies. These IMPs were used in combination with immunochromatographic assay (ICA) and used to establish highly sensitive and rapid kits (IMPs+ICA) to detect E. coli O157:H7. The kits were then used to detect E. coli O157:H7 in 150 food samples and were compared with conventional ICA to evaluate their efficacy. RESULTS The average diameter of IMPs was 56 nm and the amount of adsorbed antibodies was 106.0 μg/mg. The sensitivity of ICA and IMPs+ICA was 10(5) colony-forming units/mL and 10(3) CFUs/mL, respectively, for purified E. coli O157:H7 solution. The sensitivity of IMPs+ICA was increased by two orders, and its specificity was similar to ICA. CONCLUSION The kits have the potential to offer important social and economic benefits in the screening, monitoring, and control of food safety.
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Affiliation(s)
- Hui Qi
- Clinical Medical Research Center, The Second Clinical Medical College (Shenzhen People's Hospital), Jinan University, Shenzhen, People's Republic of China
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