1
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Gao F, Ye S, Huang L, Gu Z. A nanoparticle-assisted signal-enhancement technique for lateral flow immunoassays. J Mater Chem B 2024; 12:6735-6756. [PMID: 38920348 DOI: 10.1039/d4tb00865k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
Lateral flow immunoassay (LFIA), an affordable and rapid paper-based detection technology, is employed extensively in clinical diagnosis, environmental monitoring, and food safety analysis. The COVID-19 pandemic underscored the validity and adoption of LFIA in performing large-scale clinical and public health testing. The unprecedented demand for prompt diagnostic responses and advances in nanotechnology have fueled the rise of next-generation LFIA technologies. The utilization of nanoparticles to amplify signals represents an innovative approach aimed at augmenting LFIA sensitivity. This review probes the nanoparticle-assisted amplification strategies in LFIA applications to secure low detection limits and expedited response rates. Emphasis is placed on comprehending the correlation between the physicochemical properties of nanoparticles and LFIA performance. Lastly, we shed light on the challenges and opportunities in this prolific field.
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Affiliation(s)
- Fang Gao
- Institute of Energy Materials Science, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China
| | - Shaonian Ye
- Institute of Energy Materials Science, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China
| | - Lin Huang
- Department of Clinical Laboratory Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China.
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Zhengying Gu
- Department of Clinical Laboratory Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China.
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
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2
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Yu Q, Xia X, Xu C, Wang W, Zheng S, Wang C, Gu B, Wang C. Introduction of a multilayered fluorescent nanofilm into lateral flow immunoassay for ultrasensitive detection of Salmonella typhimurium in food samples. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023. [PMID: 37455653 DOI: 10.1039/d3ay00738c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Fast and sensitive identification of foodborne bacteria in complex samples is the key to the prevention and control of microbial infections. Herein, an ultrasensitive lateral flow assay (LFIA) based on multilayered fluorescent nanofilm (GO/DQD)-guided signal amplification was developed for the rapid and quantitative determination of Salmonella typhimurium (S. typhi). The film-like GO/DQD was prepared through the electrostatic mediated layer-by-layer assembly of numerous carboxylated CdSe/ZnS quantum dots (QDs) onto an ultrathin graphene oxide (GO) nanosheet, which possessed advantages including higher QD loading, larger surface areas, superior luminescence, and better stability, than traditional spherical nanomaterials. The antibody-modified GO/DQD can effectively attach onto a target bacterial cell to form a GO/DQD-bacteria immunocomplex containing almost ten thousand QDs, thus greatly improving the detection sensitivity of LFIA. The constructed GO/DQD-LFIA biosensor achieved the rapid and sensitive detection of S. typhi in 14 min with detection limits of as low as 9 cells/mL. Moreover, compared with traditional LFIA techniques for bacteria detection, the proposed assay exhibited excellent stability and accuracy in real food samples and enormously improved sensitivity (2-3 orders of magnitude), demonstrating its great potential in the field of rapid diagnosis.
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Affiliation(s)
- Qing Yu
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, PR China.
- Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510000, PR China.
| | - Xuan Xia
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, PR China.
| | - Changyue Xu
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, PR China.
| | - Wenqi Wang
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, PR China.
| | - Shuai Zheng
- Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510000, PR China.
| | - Chongwen Wang
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, PR China.
- Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510000, PR China.
| | - Bing Gu
- Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510000, PR China.
| | - Chaoguang Wang
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, PR China.
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3
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Ding Y, Zhu W, Huang C, Zhang Y, Wang J, Wang X. Quantum dot-labeled phage-encoded RBP 55 as a fluorescent nanoprobe for sensitive and specific detection of Salmonella in food matrices. Food Chem 2023; 428:136724. [PMID: 37418877 DOI: 10.1016/j.foodchem.2023.136724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/18/2023] [Accepted: 06/23/2023] [Indexed: 07/09/2023]
Abstract
As a commonly pathogenic bacterium, the rapid detection of Salmonella outbreaks and assurance of food safety require a highly efficient detection method. Herein, a novel approach to Salmonella detection using quantum dot-labeled phage-encoded RBP 55 as a fluorescent nanoprobe is reported. RBP 55, a novel phage receptor binding protein (RBP), was identified and characterized from phage STP55. RBP 55 was functionalized onto quantum dots (QDs) to form fluorescent nanoprobes. The assay was based on the combination of immunomagnetic separation and RBP 55-QDs, which formed a sandwich composite structure. The results showed a good linear correlation between the fluorescence values and the concentration of Salmonella (101-107 CFU/mL) with a low detection limit of 2 CFU/mL within 2 h. The method was used to successfully detect Salmonella in spiked food samples. This approach can be used for the simultaneous detection of multiple pathogens by labeling different phage-encoded RBPs using polychromatic QDs in the future.
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Affiliation(s)
- Yifeng Ding
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Wenjuan Zhu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Chenxi Huang
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yiming Zhang
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jia Wang
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Xiaohong Wang
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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4
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Liu X, Kukkar D, Deng Z, Yang D, Wang J, Kim KH, Zhang D. "Lock-and-key" recognizer-encoded lateral flow assays toward foodborne pathogen detection: An overview of their fundamentals and recent advances. Biosens Bioelectron 2023; 235:115317. [PMID: 37236010 DOI: 10.1016/j.bios.2023.115317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 04/11/2023] [Indexed: 05/28/2023]
Abstract
In light of severe health risks of foodborne pathogenic bacterial diseases, the potential utility of point-of-care (POC) sensors is recognized for pathogens detection. In this regard, lateral flow assay (LFA) is a promising and user-friendly option for such application among various technological approaches. This article presents a comprehensive review of "lock-and-key" recognizer-encoded LFAs with respect to their working principles and detection performance against foodborne pathogenic bacteria. For this purpose, we describe various strategies for bacteria recognition including the antibody-based antigen-antibody interactions, nucleic acid aptamer-based recognition, and phage-mediated targeting of bacterial cells. In addition, we also outline the technological challenges along with the prospects for the future development of LFA in food analysis. The LFA devices built based upon many recognition strategies are found to have great potential for rapid, convenient, and effective POC detection of pathogens in complex food matrixes. Future developments in this field should emphasize the development of high-quality bio-probes, multiplex sensors, and intelligent portable readers.
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Affiliation(s)
- Xiaojing Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Deepak Kukkar
- Department of Biotechnology, Chandigarh University, Gharuan, Mohali, 147013, Punjab, India; University Centre for Research and Development, Chandigarh University, Gharuan, Mohali, 147013, Punjab, India
| | - Ziai Deng
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Di Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seongdong-gu, Wangsimni-ro, Seoul, 04763, South Korea.
| | - Daohong Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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5
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Fang B, Xiong Q, Duan H, Xiong Y, Lai W. Tailored quantum dots for enhancing sensing performance of lateral flow immunoassay. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Li R, Zhang Y, Zhao J, Wang Y, Wang H, Zhang Z, Lin H, Li Z. Quantum-dot-based sandwich lateral flow immunoassay for the rapid detection of shrimp major allergen tropomyosin. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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7
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Tu Z, Yang X, Dong H, Yu Q, Zheng S, Cheng X, Wang C, Rong Z, Wang S. Ultrasensitive Fluorescence Lateral Flow Assay for Simultaneous Detection of Pseudomonas aeruginosa and Salmonella typhimurium via Wheat Germ Agglutinin-Functionalized Magnetic Quantum Dot Nanoprobe. BIOSENSORS 2022; 12:942. [PMID: 36354451 PMCID: PMC9687718 DOI: 10.3390/bios12110942] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/21/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Point-of-care testing methods for the rapid and sensitive screening of pathogenic bacteria are urgently needed because of the high number of outbreaks of microbial infections and foodborne diseases. In this study, we developed a highly sensitive and multiplex lateral flow assay (LFA) for the simultaneous detection of Pseudomonas aeruginosa and Salmonella typhimurium in complex samples by using wheat germ agglutinin (WGA)-modified magnetic quantum dots (Mag@QDs) as a universal detection nanoprobe. The Mag@QDs-WGA tag with a 200 nm Fe3O4 core and multiple QD-formed shell was introduced into the LFA biosensor for the universal capture of the two target bacteria and provided the dual amplification effect of fluorescence enhancement and magnetic enrichment for ultra-sensitivity detection. Meanwhile, two antibacterial antibodies were separately sprayed onto the two test lines of the LFA strip to ensure the specific identification of P. aeruginosa and S. typhimurium through one test. The proposed LFA exhibited excellent analytical performance, including high capture rate (>80%) to the target pathogens, low detection limit (<30 cells/mL), short testing time (<35 min), and good reproducibility (relative standard deviation < 10.4%). Given these merits, the Mag@QDs-WGA-based LFA has a great potential for the on-site and real-time diagnosis of bacterial samples.
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Affiliation(s)
- Zhijie Tu
- Beijing Institute of Microbiology and Epidemiology, Beijing 100089, China
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Xingsheng Yang
- Beijing Institute of Microbiology and Epidemiology, Beijing 100089, China
| | - Hao Dong
- Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230036, China
| | - Qing Yu
- Beijing Institute of Microbiology and Epidemiology, Beijing 100089, China
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Shuai Zheng
- Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230036, China
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Xiaodan Cheng
- Beijing Institute of Microbiology and Epidemiology, Beijing 100089, China
| | - Chongwen Wang
- Beijing Institute of Microbiology and Epidemiology, Beijing 100089, China
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Zhen Rong
- Beijing Institute of Microbiology and Epidemiology, Beijing 100089, China
| | - Shengqi Wang
- Beijing Institute of Microbiology and Epidemiology, Beijing 100089, China
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Bordbar MM, Samadinia H, Hajian A, Sheini A, Safaei E, Aboonajmi J, Arduini F, Sharghi H, Hashemi P, Khoshsafar H, Ghanei M, Bagheri H. Mask assistance to colorimetric sniffers for detection of Covid-19 disease using exhaled breath metabolites. SENSORS AND ACTUATORS. B, CHEMICAL 2022; 369:132379. [PMID: 35855726 DOI: 10.1016/j.snb.2022.132371] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/12/2022] [Accepted: 07/13/2022] [Indexed: 05/25/2023]
Abstract
According to World Health Organization reports, large numbers of people around the globe have been infected or died for Covid-19 due to the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Researchers are still trying to find a rapid and accurate diagnostic method for revealing infected people by low viral load with the overriding goal of effective diagnostic management. Monitoring the body metabolic changes is known as an effective and inexpensive approach for the evaluation of the infected people. Here, an optical sniffer is introduced to detect exhaled breath metabolites of patients with Covid-19 (60 samples), healthy humans (55 samples), and cured people (15 samples), providing a unique color pattern for differentiation between the studied samples. The sniffer device is installed on a thin face mask, and directly exposed to the exhaled breath stream. The interactions occurring between the volatile compounds and sensing components such as porphyrazines, modified organic dyes, porphyrins, inorganic complexes, and gold nanoparticles allowing for the change of the color, thus being tracked as the sensor responses. The assay accuracy for the differentiation between patient, healthy and cured samples is calculated to be in the range of 80%-84%. The changes in the color of the sensor have a linear correlation with the disease severity and viral load evaluated by rRT-PCR method. Interestingly, comorbidities such as kidney, lung, and diabetes diseases as well as being a smoker may be diagnosed by the proposed method. As a powerful detection device, the breath sniffer can replace the conventional rapid test kits for medical applications.
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Affiliation(s)
- Mohammad Mahdi Bordbar
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hosein Samadinia
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ali Hajian
- Institute of Sensor and Actuator Systems, TU Wien, Gusshausstrasse 27-29, 1040 Vienna, Austria
| | - Azarmidokht Sheini
- Department of Mechanical Engineering, Shohadaye Hoveizeh Campus of Technology, Shahid Chamran University of Ahvaz, Dashte Azadegan, Khuzestan, Iran
| | - Elham Safaei
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, Iran
| | - Jasem Aboonajmi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, Iran
| | - Fabiana Arduini
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Hashem Sharghi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, Iran
| | - Pegah Hashemi
- Research and Development Department, Farin Behbood Tashkhis LTD, Tehran, Iran
| | - Hosein Khoshsafar
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mostafa Ghanei
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hasan Bagheri
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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9
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Ju J, Zhang X, Li L, Regmi S, Yang G, Tang S. Development of fluorescent lateral flow immunoassay for SARS-CoV-2-specific IgM and IgG based on aggregation-induced emission carbon dots. Front Bioeng Biotechnol 2022; 10:1042926. [PMID: 36312540 PMCID: PMC9608551 DOI: 10.3389/fbioe.2022.1042926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 09/28/2022] [Indexed: 11/13/2022] Open
Abstract
Understanding the dynamic changes in antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is essential for evaluating the effectiveness of the vaccine and the stage for the recovery of the COVID-19 disease. A rapid and accurate method for the detection of SARS-CoV-2-specific antibodies is still urgently needed. Here, we developed a novel fluorescent lateral flow immunoassay (LFA) platform for the detection of SARS-CoV-2-specific IgM and IgG by the aggregation-induced emission carbon dots conjugated with the SARS-CoV-2 spike protein (SSP). The aggregation-induced emission carbon dots (AIE-CDs) are one of the best prospect fluorescent probe materials for exhibiting high emission efficiency in both aggregate and solid states. The AIE-CDs were synthesized and displayed dual fluorescence emission, which provides a new perspective for the design of a high sensitivity testing system. In this work, the novel LFA platform adopted the AIE carbon dots, which are used to detect SARS-CoV-2-specific IgM and IgG conveniently. Furthermore, this sensor had a low LOD of 100 pg/ml. Therefore, this newly developed strategy has potential applications in the areas of public health for the advancement of clinical research.
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Affiliation(s)
- Jian Ju
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
- Oujiang Lab, Wenzhou, China
- *Correspondence: Jian Ju, ; Guoqiang Yang, ; Shixing Tang,
| | - Xinyu Zhang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Lin Li
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China
| | - Sagar Regmi
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Guoqiang Yang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Photochemistry, Institute of Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China
- *Correspondence: Jian Ju, ; Guoqiang Yang, ; Shixing Tang,
| | - Shixing Tang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
- *Correspondence: Jian Ju, ; Guoqiang Yang, ; Shixing Tang,
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10
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Zhuang H, Xu C, Gao F, Li Y, Lei C, Yu C. Recent Advances in Silica-Nanomaterial-Assisted Lateral Flow Assay. Bioengineering (Basel) 2022; 9:bioengineering9070266. [PMID: 35877318 PMCID: PMC9311751 DOI: 10.3390/bioengineering9070266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/18/2022] [Accepted: 06/19/2022] [Indexed: 12/20/2022] Open
Abstract
Lateral flow assays (LFAs) have attracted much attention as rapid and affordable point-of-care devices for medical diagnostics. The global SARS-CoV-2 pandemic has further highlighted the importance of LFAs. Many efforts have been made to enhance the sensitivity of LFAs. In recent years, silica nanomaterials have been used to either amplify the signal of label materials or provide stability, resulting in better detection performance. In this review, the recent progress of silica-nanomaterial-assisted LFAs is summarized. The impact of the structure of silica nanomaterials on LFA performance, the challenges and prospects in this research area are also discussed.
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Affiliation(s)
- Han Zhuang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia; (H.Z.); (F.G.); (Y.L.)
| | - Chun Xu
- School of Dentistry, The University of Queensland, Brisbane, QLD 4006, Australia;
| | - Fang Gao
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia; (H.Z.); (F.G.); (Y.L.)
| | - Yiwei Li
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia; (H.Z.); (F.G.); (Y.L.)
| | - Chang Lei
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia; (H.Z.); (F.G.); (Y.L.)
- Correspondence: (C.L.); (C.Y.)
| | - Chengzhong Yu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia; (H.Z.); (F.G.); (Y.L.)
- Correspondence: (C.L.); (C.Y.)
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11
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Sohrabi H, Majidi MR, Khaki P, Jahanban-Esfahlan A, de la Guardia M, Mokhtarzadeh A. State of the art: Lateral flow assays toward the point-of-care foodborne pathogenic bacteria detection in food samples. Compr Rev Food Sci Food Saf 2022; 21:1868-1912. [PMID: 35194932 DOI: 10.1111/1541-4337.12913] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/18/2021] [Accepted: 12/23/2021] [Indexed: 12/24/2022]
Abstract
Diverse chemicals and some physical phenomena recently introduced in nanotechnology have enabled scientists to develop useful devices in the field of food sciences. Concerning such developments, detecting foodborne pathogenic bacteria is now an important issue. These kinds of bacteria species have demonstrated severe health effects after consuming foods and high mortality related to acute cases. The most leading path of intoxication and infection has been through food matrices. Hence, quick recognition of foodborne bacteria agents at low concentrations has been required in current diagnostics. Lateral flow assays (LFAs) are one of the urgent and prevalently applied quick recognition methods that have been settled for recognizing diverse types of analytes. Thus, the present review has stressed on latest developments in LFAs-based platforms to detect various foodborne pathogenic bacteria such as Salmonella, Listeria, Escherichia coli, Brucella, Shigella, Staphylococcus aureus, Clostridium botulinum, and Vibrio cholera. Proper prominence has been given on exactly how the labels, detection elements, or procedures have affected recent developments in the evaluation of diverse bacteria using LFAs. Additionally, the modifications in assays specificity and sensitivity consistent with applied food processing techniques have been discussed. Finally, a conclusion has been drawn for highlighting the main challenges confronted through this method and offered a view and insight of thoughts for its further development in the future.
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Affiliation(s)
- Hessamaddin Sohrabi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Mir Reza Majidi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Pegah Khaki
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Jahanban-Esfahlan
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biology, Faculty of Fundamental Sciences, University College of Nabi Akram (UCNA), Tabriz, Iran
| | | | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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12
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Advances in nanomaterial-based microfluidic platforms for on-site detection of foodborne bacteria. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2021.116509] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Ge L, Wang D, Lian F, Zhao J, Wang Y, Zhao Y, Zhang L, Wang J, Song X, Li J, Xu K. Lateral Flow Immunoassay for Visible Detection of Human Brucellosis Based on Blue Silica Nanoparticles. Front Vet Sci 2021; 8:771341. [PMID: 34926642 PMCID: PMC8677672 DOI: 10.3389/fvets.2021.771341] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/27/2021] [Indexed: 12/03/2022] Open
Abstract
Brucellosis is a highly contagious zoonosis chronic infectious disease with a strong latent capability to endanger human health and economic development via direct or indirect ways. However, the existing methods for brucellosis diagnosis are time-consuming and expensive as they require a tedious experimental procedure and a sophisticated experimental device and performance. To overcome these defects, it is truly necessary to establish a real-time, on-site, and rapid detection method for human brucellosis. Here, a lateral flow immunoassay (LFIA) with a rapid, sensitive, and alternative diagnostic procedure for human brucellosis with a high degree of accuracy was developed based on blue silica nanoparticles (SiNPs), Staphylococcal protein A (SPA), and surface Lipopolysaccharide of Brucella spp. (LPS), which can be applied for rapid and feasible detection of human brucellosis. To our knowledge, this is the first report that uses blue SiNPs as a signal probe of LFIA for the rapid diagnosis of human brucellosis. The precursor of blue SiNPs@SPA such as colorless SiNPs and blue SiNPs was synthesized at first and then coupled with SPA onto the surface of blue SiNPs by covalent bond to prepare blue SiNPs@SPA as a capture signal to catch the antibody in the brucellosis-positive serum. When SPA was combined with the antibodies in the brucellosis-positive serum, it was captured by LPS on the test line, forming an antigen-antibody sandwich structure, resulting in the T line turning blue. Finally, the results showed that it is acceptable to use blue SiNPs as visible labels of LFIA, and standard brucellosis serum (containing Brucella spp. antibody at 1,000 IU/ml) could be detected at a dilution of 10-5 and the detection limit of this method was 0.01 IU/ml. Moreover, it also demonstrated good specificity and accuracy for the detection of real human serum samples. Above all, the blue SiNPs-based LFIA that we developed provides a rapid, highly accurate, and inexpensive on-site diagnosis of human brucellosis, and shows great promise in clinical diagnostics for other diseases.
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Affiliation(s)
- Lirui Ge
- School of Public Health, Jilin University, Changchun, China
- Public Health Detection Engineering Research Center of Jilin Province, Changchun, China
| | - Dan Wang
- School of Public Health, Jilin University, Changchun, China
- Public Health Detection Engineering Research Center of Jilin Province, Changchun, China
| | - Fengnan Lian
- School of Public Health, Jilin University, Changchun, China
- Public Health Detection Engineering Research Center of Jilin Province, Changchun, China
| | - Jinbin Zhao
- School of Public Health, Jilin University, Changchun, China
- Public Health Detection Engineering Research Center of Jilin Province, Changchun, China
| | - Yue Wang
- School of Public Health, Jilin University, Changchun, China
- Public Health Detection Engineering Research Center of Jilin Province, Changchun, China
| | - Yuyi Zhao
- School of Public Health, Jilin University, Changchun, China
- Public Health Detection Engineering Research Center of Jilin Province, Changchun, China
| | - Lanting Zhang
- School of Public Health, Jilin University, Changchun, China
| | - Juan Wang
- School of Public Health, Jilin University, Changchun, China
| | - Xiuling Song
- School of Public Health, Jilin University, Changchun, China
| | - Jinhua Li
- School of Public Health, Jilin University, Changchun, China
| | - Kun Xu
- School of Public Health, Jilin University, Changchun, China
- Public Health Detection Engineering Research Center of Jilin Province, Changchun, China
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14
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Pan R, Li G, Liu S, Zhang X, Liu J, Su Z, Wu Y. Emerging nanolabels-based immunoassays: Principle and applications in food safety. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116462] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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15
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Pham XH, Park SM, Ham KM, Kyeong S, Son BS, Kim J, Hahm E, Kim YH, Bock S, Kim W, Jung S, Oh S, Lee SH, Hwang DW, Jun BH. Synthesis and Application of Silica-Coated Quantum Dots in Biomedicine. Int J Mol Sci 2021; 22:10116. [PMID: 34576279 PMCID: PMC8468474 DOI: 10.3390/ijms221810116] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/12/2021] [Accepted: 09/13/2021] [Indexed: 11/17/2022] Open
Abstract
Quantum dots (QDs) are semiconductor nanoparticles with outstanding optoelectronic properties. More specifically, QDs are highly bright and exhibit wide absorption spectra, narrow light bands, and excellent photovoltaic stability, which make them useful in bioscience and medicine, particularly for sensing, optical imaging, cell separation, and diagnosis. In general, QDs are stabilized using a hydrophobic ligand during synthesis, and thus their hydrophobic surfaces must undergo hydrophilic modification if the QDs are to be used in bioapplications. Silica-coating is one of the most effective methods for overcoming the disadvantages of QDs, owing to silica's physicochemical stability, nontoxicity, and excellent bioavailability. This review highlights recent progress in the design, preparation, and application of silica-coated QDs and presents an overview of the major challenges and prospects of their application.
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Affiliation(s)
- Xuan-Hung Pham
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Seung-Min Park
- Department of Urology, School of Medicine, Stanford University, Stanford, CA 94305, USA;
| | - Kyeong-Min Ham
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - San Kyeong
- School of Chemical and Biological Engineering, Seoul National University, Seoul 03080, Korea;
| | - Byung Sung Son
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Jaehi Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Eunil Hahm
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Yoon-Hee Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Sungje Bock
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Wooyeon Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Seunho Jung
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
| | - Sangtaek Oh
- Department of Bio and Fermentation Convergence Technology, Kookmin University, Seoul 02707, Korea;
| | - Sang Hun Lee
- Department of Chemical and Biological Engineering, Hanbat National University, Daejeon 34158, Korea
| | - Do Won Hwang
- Department of Nuclear Medicine, College of Medicine, Seoul National University, Seoul 03080, Korea
- THERABEST, Co., Ltd., Seocho-daero 40-gil, Seoul 06657, Korea
| | - Bong-Hyun Jun
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea; (X.-H.P.); (K.-M.H.); (B.S.S.); (J.K.); (E.H.); (Y.-H.K.); (S.B.); (W.K.); (S.J.)
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16
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Tian Y, Li X, Cai R, Yang K, Gao Z, Yuan Y, Yue T, Wang Z. Aptamer modified magnetic nanoparticles coupled with fluorescent quantum dots for efficient separation and detection of Alicyclobacillus acidoterrestris in fruit juices. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108060] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Gao P, Wang L, He Y, Wang Y, Yang X, Fu S, Qin X, Chen Q, Man C, Jiang Y. An Enhanced Lateral Flow Assay Based on Aptamer-Magnetic Separation and Multifold AuNPs for Ultrasensitive Detection of Salmonella Typhimurium in Milk. Foods 2021; 10:1605. [PMID: 34359475 PMCID: PMC8306288 DOI: 10.3390/foods10071605] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 11/30/2022] Open
Abstract
In this paper, a novel and ultrasensitive lateral flow assay (LFA) based on aptamer-magnetic separation, and multifold Au nanoparticles (AuNPs) was developed for visual detecting Salmonella enterica ser. Typhimurium (S. Typhimurium). The method realized magnetic enrichment and signal transduction via magnetic separation and achieved signal amplification through hybridizing AuNPs-capture probes and AuNPs-amplification probes to form multifold AuNPs. Two different thiolated single-strand DNA (ssDNA) on the AuNPs-capture probe played different roles. One was combined with the AuNPs-amplification probe on the conjugate pad to achieve enhanced signals. The other was connected to transduction ssDNA1 released by aptamer-magnetic capture of S. Typhimurium, and captured by the T-line, forming a positive signal. This method had an excellent linear relationship ranging from 8.6 × 102 CFU/mL to 8.6 × 107 CFU/mL with the limit of detection (LOD) as low as 8.6 × 100 CFU/mL in pure culture. In actual samples, the visual LOD was 4.1 × 102 CFU/mL, which did not carry out nucleic acid amplification and pre-enrichment, increasing three orders of magnitudes than unenhanced assays with single-dose AuNPs and no magnetic separation. Furthermore, the system showed high specificity, having no reaction with other nontarget strains. This visual signal amplificated system would be a potential platform for ultrasensitive monitoring S. Typhimurium in milk samples.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Yujun Jiang
- Key Laboratory of Dairy Science, Ministry of Education, Department of Food Science, Northeast Agricultural University, Harbin 150030, China; (P.G.); (L.W.); (Y.H.); (Y.W.); (X.Y.); (S.F.); (X.Q.); (Q.C.); (C.M.)
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18
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Zheng S, Yang X, Zhang B, Cheng S, Han H, Jin Q, Wang C, Xiao R. Sensitive detection of Escherichia coli O157:H7 and Salmonella typhimurium in food samples using two-channel fluorescence lateral flow assay with liquid Si@quantum dot. Food Chem 2021; 363:130400. [PMID: 34198144 DOI: 10.1016/j.foodchem.2021.130400] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 05/18/2021] [Accepted: 06/16/2021] [Indexed: 01/02/2023]
Abstract
Here, we proposed a silica-quantum dot (QD)-based fluorescent lateral flow immunoassay (LFA) method with high sensitivity for the simultaneous qualification of Salmonella typhimurium and Escherichia coli O157:H7 in food samples. The silica-QD nanobead (Si@DQD) with dual-QD shell was introduced into the two-channel LFA strip as the advanced fluorescent tag, thus providing superior fluorescence signal, monodispersity, and excellent stability for actual sample detection. The liquid Si@DQD tags were mixed with sample solution and directly loaded onto the LFA strip for the quantitative analysis of target bacteria within 15 min. The detection limit of the proposed assay reached 50 cells/mL for both S. typhi/E. coli and was approximately 200 times more sensitive than the colloidal gold (AuNP)-based LFA strips. The Si@DQD-LFA also exhibited the advantages of good stability, specificity, and easy operation, suggesting its great potential for real bacterial sample detection.
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Affiliation(s)
- Shuai Zheng
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, PR China; Beijing Institute of Radiation Medicine, Beijing 100850, PR China
| | - Xingsheng Yang
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, PR China; Beijing Institute of Radiation Medicine, Beijing 100850, PR China
| | - Bo Zhang
- Department of Pharmacy, Peking Union Medical College Hospital, Chinese Academy Medical Sciences & Peking Union Medical College, Beijing 100730, PR China
| | - Siyun Cheng
- Beijing Institute of Radiation Medicine, Beijing 100850, PR China
| | - Han Han
- Beijing Institute of Radiation Medicine, Beijing 100850, PR China
| | - Qing Jin
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, PR China.
| | - Chongwen Wang
- College of Life Sciences, Anhui Agricultural University, Hefei 230036, PR China; Beijing Institute of Radiation Medicine, Beijing 100850, PR China.
| | - Rui Xiao
- Beijing Institute of Radiation Medicine, Beijing 100850, PR China.
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19
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Xiao X, Hu S, Lai X, Peng J, Lai W. Developmental trend of immunoassays for monitoring hazards in food samples: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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20
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Wang S, Shen W, Zheng S, Li Z, Wang C, Zhang L, Liu Y. Dual-signal lateral flow assay using vancomycin-modified nanotags for rapid and sensitive detection of Staphylococcus aureus. RSC Adv 2021; 11:13297-13303. [PMID: 35423879 PMCID: PMC8697553 DOI: 10.1039/d1ra01085a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 03/28/2021] [Indexed: 12/17/2022] Open
Abstract
This paper reports a colorimetric-fluorescent dual-signal lateral flow assay (LFA) based on vancomycin (Van)-modified SiO2-Au-QD tags for sensitive and quantitative detection of Staphylococcus aureus (S. aureus). The combination of high-performance Van-tags and detection antibodies integrated into the LFA system produced assays with high sensitivity and specificity. The visualization limit of the colorimetric signal and the detection limit of the fluorescence signal of the proposed method for S. aureus can reach 104 and 100 cells mL-1, respectively.
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Affiliation(s)
- Shu Wang
- Hefei Institute of Physical Science, Chinese Academy of Sciences Hefei 230036 PR China
- University of Science and Technology of China Hefei 230036 PR China
| | - Wanzhu Shen
- Anhui Agricultural University Hefei 230036 PR China
- Beijing Institute of Radiation Medicine Beijing 100850 PR China
| | - Shuai Zheng
- Anhui Agricultural University Hefei 230036 PR China
- Beijing Institute of Radiation Medicine Beijing 100850 PR China
| | - Zhigang Li
- Hefei Institute of Physical Science, Chinese Academy of Sciences Hefei 230036 PR China
| | - Chongwen Wang
- Anhui Agricultural University Hefei 230036 PR China
- Beijing Institute of Radiation Medicine Beijing 100850 PR China
| | - Long Zhang
- Hefei Institute of Physical Science, Chinese Academy of Sciences Hefei 230036 PR China
- University of Science and Technology of China Hefei 230036 PR China
| | - Yong Liu
- Hefei Institute of Physical Science, Chinese Academy of Sciences Hefei 230036 PR China
- University of Science and Technology of China Hefei 230036 PR China
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21
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Mahmoudi T, Pourhassan-Moghaddam M, Shirdel B, Baradaran B, Morales-Narváez E, Golmohammadi H. (Nano)tag-antibody conjugates in rapid tests. J Mater Chem B 2021; 9:5414-5438. [PMID: 34143173 DOI: 10.1039/d1tb00571e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Antibodies (Abs) are naturally derived materials with favorable affinity, selectivity, and fast binding kinetics to the respective antigens, which enables their application as promising recognition elements in the development of various types of biosensors/bioassays, especially in rapid tests. These tests are low-cost and easy-to-use biosensing devices with broad applications including medical or veterinary diagnostics, environmental monitoring and industrial usages such as safety and quality analysis in food, providing on-site quick monitoring of various analytes, making it possible to save analysis costs and time. To reach such features, the conjugation of Abs with various nanomaterials (NMs) as tags is necessary, which range from conventional gold nanoparticles to other nanoparticles recently introduced, where magnetic, plasmonic, photoluminescent, or multi-modal properties play a critical role in the overall performance of the analytical device. In this context, to preserve the Ab affinity and provide a rapid response with long-term storage capability, the use of efficient bio-conjugation techniques is critical. Thanks to their prominent role in rapid tests, many studies have been devoted to the design and development of Abs-NMs conjugates with various chemistries including passive adsorption, covalent coupling, and affinity interactions. In this review, we present the state-of-the-art techniques allowing various Ab-NM conjugates with a special focus on the efficiency of the developed probes to be employed in in vitro rapid tests. Challenges and future perspectives on the development of Ab-conjugated nanotags in rapid diagnostic tests are highlighted along with a survey of the progress in commercially available Ab-NM conjugates.
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Affiliation(s)
- Tohid Mahmoudi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Pourhassan-Moghaddam
- ARC Research Hub for Integrated Device for End-user Analysis at Low-levels (IDEAL), Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Behnaz Shirdel
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Eden Morales-Narváez
- Biophotonic Nanosensors Laboratory, Centro de Investigaciones en Óptica, A. C. Loma del Bosque 115, Lomas del Campestre, 37150 León, Guanajuato, Mexico.
| | - Hamed Golmohammadi
- Nanosensors Bioplatforms Laboratory, Chemistry and Chemical Engineering Research Center of Iran, 14335-186, Tehran, Iran.
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22
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Shi L, Xu L, Xiao R, Zhou Z, Wang C, Wang S, Gu B. Rapid, Quantitative, High-Sensitive Detection of Escherichia coli O157:H7 by Gold-Shell Silica-Core Nanospheres-Based Surface-Enhanced Raman Scattering Lateral Flow Immunoassay. Front Microbiol 2020; 11:596005. [PMID: 33240250 PMCID: PMC7677456 DOI: 10.3389/fmicb.2020.596005] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 10/15/2020] [Indexed: 11/13/2022] Open
Abstract
Escherichia coli O157:H7 is regarded as one of the most harmful pathogenic microorganisms related to foodborne diseases. This paper proposes a rapid-detection biosensor for the sensitive and quantitative analysis of E. coli O157:H7 in biological samples by surface-enhanced Raman scattering (SERS)-based lateral flow immunoassay (LFIA). A novel gold-shell silica-core (SiO2/Au) nanosphere (NP) with monodispersity, good stability, and excellent SERS activity was utilized to prepare high-performance tags for the SERS-based LFIA system. The SiO2/Au SERS tags, which were modified with two layers of Raman reporter molecules and monoclonal antibodies, effectively bind with E. coli O157:H7 and form sandwich immune complexes on the test lines. E. coli O157:H7 was quantitatively detected easily by detecting the Raman intensity of the test lines. Under optimal conditions, the limit of detection (LOD) of the SiO2/Au-based SERS-LIFA strips for the target bacteria was 50 cells/mL in PBS solution, indicating these strips are 2,000 times more sensitive than colloidal Au-based LFIA strips. Moreover, the proposed assay demonstrated high applicability in E. coli O157:H7 detection in biological samples, including tap water, milk, human urine, lettuce extract and beef, with a low LOD of 100 cells/mL. Results indicate that the proposed SERS-based LFIA strip is applicable for the sensitive and quantitative determination of E. coli O157:H7.
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Affiliation(s)
- Luoluo Shi
- Medical Technology Institute of Xuzhou Medical University, Xuzhou, China
- Beijing Institute of Radiation Medicine, Beijing, China
- Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Ling Xu
- Medical Technology Institute of Xuzhou Medical University, Xuzhou, China
- Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Rui Xiao
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Zihui Zhou
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Chongwen Wang
- Medical Technology Institute of Xuzhou Medical University, Xuzhou, China
- Beijing Institute of Radiation Medicine, Beijing, China
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Shengqi Wang
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Bing Gu
- Medical Technology Institute of Xuzhou Medical University, Xuzhou, China
- Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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23
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Yan W, Fan L, Li J, Wang Y, Han H, Tan F, Zhang P. Bimodal size distribution immuno-quantum dots for fluorescent western blotting assay with high sensitivity and extended dynamic range. Mikrochim Acta 2020; 187:598. [PMID: 33034772 DOI: 10.1007/s00604-020-04578-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 09/29/2020] [Indexed: 11/25/2022]
Abstract
A highly sensitive quantum dot (QD)-based western blot assay with extended dynamic range was developed. Bimodal size distribution QD (BQ) immunoprobes composed of small size single QD (7.3 nm) and big size QD nanobead (QB) (82.9 nm) were employed for fluorescent western blot immunoassay on a membrane. Small size QD immunoprobes contributed to wider dynamic range of assay, while big size QB immunoprobes provided higher detection sensitivity. This BQ-based western blot assay can achieve a wide dynamic range (from 7.8 to 4000 ng IgG) and is nearly as sensitive as commercial available ultrasensitive chemiluminescent methods, just using a simple gel imager with UV light (365 nm) excitation and red light filter (610 nm). The fluorescent signals of BQ western blot were stable for 10 min, while chemiluminescent signals faded after 1 min. Moreover, this BQ immunoprobe was utilized for the detection of housekeeping protein and specific target proteins in complex cell lysate samples. The limit of detection of housekeeping protein is 0.25 μg of cell lysate, and the signal intensities were proportional to loading protein amount in a wide range from 0.61 to 80 μg. We believe that this new strategy of bimodal size distribution nanoparticles can also be expanded for other functional nanoparticle-based biological assays to improve the sensitivity and extend the dynamic range. Graphical abstract.
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Affiliation(s)
- Wannian Yan
- Department of Central Laboratory, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, 200443, China
| | - Lingzhi Fan
- Department of Central Laboratory, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, 200443, China
| | - Jin Li
- Shandong Zhifu Hospital, Yantai, 26400, Shandong, China
| | - Yijiang Wang
- Department of Periodontology, School & Hospital of Stomatology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Tongji University, Shanghai, 200072, China
| | - Huanxing Han
- Department of Pharmacy, Changzheng Hospital, The Second Military Medical University, Shanghai, 200433, China
- Aliex Technology Group Co., Ltd, No. 152, Lane 468, North Hengshahe Road, Shanghai, China
| | - Fei Tan
- Department of Central Laboratory, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, 200443, China.
| | - Pengfei Zhang
- Department of Central Laboratory, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, 200443, China.
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24
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Darwish GH, Asselin J, Tran MV, Gupta R, Kim H, Boudreau D, Algar WR. Fully Self-Assembled Silica Nanoparticle-Semiconductor Quantum Dot Supra-Nanoparticles and Immunoconjugates for Enhanced Cellular Imaging by Microscopy and Smartphone Camera. ACS APPLIED MATERIALS & INTERFACES 2020; 12:33530-33540. [PMID: 32672938 DOI: 10.1021/acsami.0c09553] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
There is a growing need for brighter luminescent materials to improve the detection and imaging of biomarkers. Relevant contexts include low-abundance biomarkers and technology-limited applications, where an example of the latter is the emerging use of smartphones and other nonoptimal but low-cost and portable devices for point-of-care diagnostics. One approach to achieving brighter luminescent materials is incorporating multiple copies of a luminescent material into a larger supra-nanoparticle (supra-NP) assembly. Here, we present a facile method for the preparation and immunoconjugation of supra-NP assemblies (SiO2@QDs) that comprised many quantum dots (QDs) around a central silica nanoparticle (SiO2 NP). The assembly was entirely driven by spontaneous affinity interactions between the constituent materials, which included imidazoline-functionalized silica nanoparticles, ligand-coated QDs, imidazole-functionalized dextran, and tetrameric antibody complexes (TACs). The physical and optical properties of the SiO2@QDs were characterized at both the ensemble and single-particle levels. Notably, the optical properties of the QDs were preserved upon assembly into supra-NPs, and single SiO2@QDs were approximately an order of magnitude brighter than single QDs and nonblinking. In proof-of-concept applications, including selective immunolabeling of breast cancer cells, the SiO2@QDs provided higher sensitivity and superior signal-to-background ratios whether using research-grade fluorescence microscopy or smartphone-based imaging. Overall, the SiO2@QDs are promising materials for enhanced bioanalysis and imaging.
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Affiliation(s)
- Ghinwa H Darwish
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Jérémie Asselin
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
- Département de chimie et Centre d'optique, photonique et laser (COPL), Université Laval, Québec G1V 0A6, Canada
| | - Michael V Tran
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Rupsa Gupta
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Hyungki Kim
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Denis Boudreau
- Département de chimie et Centre d'optique, photonique et laser (COPL), Université Laval, Québec G1V 0A6, Canada
| | - W Russ Algar
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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