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Yang GR, Kim W, Jung JH. Sliding Microneedle - Lateral flow immunoassay strip device for highly sensitive biomarker detection in interstitial fluid. Biosens Bioelectron 2024; 263:116590. [PMID: 39096764 DOI: 10.1016/j.bios.2024.116590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/11/2024] [Accepted: 07/16/2024] [Indexed: 08/05/2024]
Abstract
Diabetes is a chronic disease with significant complications, necessitating regular treatment and checkups, which can be costly and time-consuming for patients. To address this, we developed the Sliding Microneedle (MN)-Lateral flow immunoassay strip (LFIAs) device that combines the advantages of MNs and LFIAs to detect IL-6, an independent biomarker for diabetes complications. This device offers rapid and highly sensitive detection of IL-6 by extracting interstitial fluid (ISF) through MNs and transferring it to LFIAs. The stainless MN, embedded in the 3D-printed Sliding MN-LFIAs device, was inserted into the skin at a 20° angle, minimizing blood contamination risk. With a filter paper attached to the MN surface, the device collected 4.65 ± 0.05 μL of ISF containing IL-6 within 90 s. The ISF was then transferred to the LFIAs using a running buffer. After a 15-min reaction, silver enhancement (SE) treatment was applied, allowing for the highly sensitive and specific detection of IL-6 at 102 pg/mL concentrations. The Sliding MN-LFIAs device successfully distinguished between normal and diabetic rat models, demonstrating its potential as an effective tool for detecting diabetes complications quickly and affordably.
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Affiliation(s)
- Ga Ram Yang
- Department of Pharmaceutical Engineering, Dankook University, Cheonan, South Korea
| | - Woojin Kim
- Department of Pharmaceutical Engineering, Dankook University, Cheonan, South Korea
| | - Jae Hwan Jung
- Department of Pharmaceutical Engineering, Dankook University, Cheonan, South Korea.
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2
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Jie H, Wang Y, Zhao M, Wang X, Wang Z, Zeng L, Cao X, Xu T, Xia F, Liu Q. Automatic ultrasensitive lateral flow immunoassay based on a color-enhanced signal amplification strategy. Biosens Bioelectron 2024; 256:116262. [PMID: 38621340 DOI: 10.1016/j.bios.2024.116262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/27/2024] [Accepted: 03/29/2024] [Indexed: 04/17/2024]
Abstract
Lateral flow immunoassays (LFIAs) are an essential and widely used point-of-care test for medical diagnoses. However, commercial LFIAs still have low sensitivity and specificity. Therefore, we developed an automatic ultrasensitive dual-color enhanced LFIA (DCE-LFIA) by applying an enzyme-induced tyramide signal amplification method to a double-antibody sandwich LFIA for antigen detection. The DCE-LFIA first specifically captured horseradish peroxidase (HRP)-labeled colored microspheres at the Test line, and then deposited a large amount of tyramide-modified signals under the catalytic action of HRP to achieve the color superposition. A limit of detection (LOD) of 3.9 pg/mL and a naked-eye cut-off limit of 7.8 pg/mL were achieved for detecting severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nucleoprotein. Additionally, in the inactivated virus detections, LOD equivalent to chemiluminescence (0.018 TCID50/mL) was obtained, and it had excellent specificity under the interference of other respiratory viruses. High sensitivity has also been achieved for detection of influenza A, influenza B, cardiac troponin I, and human chorionic gonadotrophin using this DCE-LFIA, suggesting the assay is universally applicable. To ensure the convenience and stability in practical applications, we created an automatic device. It provides a new practical option for point-of-care test immunoassays, especially ultra trace detection and at-home testing.
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Affiliation(s)
- Huiyang Jie
- Department of Detection and Diagnosis Technology Research, Guangzhou National Laboratory, Guangzhou, Guangdong, 510000, PR China
| | - Yu Wang
- Department of Detection and Diagnosis Technology Research, Guangzhou National Laboratory, Guangzhou, Guangdong, 510000, PR China
| | - Meng Zhao
- Micro-nano Tech Center, Bioland Laboratory, Guangzhou, Guangdong, 510000, PR China
| | - Xiuzhen Wang
- Department of Detection and Diagnosis Technology Research, Guangzhou National Laboratory, Guangzhou, Guangdong, 510000, PR China
| | - Zhong Wang
- Department of Detection and Diagnosis Technology Research, Guangzhou National Laboratory, Guangzhou, Guangdong, 510000, PR China
| | - Lingliao Zeng
- Department of Detection and Diagnosis Technology Research, Guangzhou National Laboratory, Guangzhou, Guangdong, 510000, PR China
| | - Xiaobao Cao
- Department of Detection and Diagnosis Technology Research, Guangzhou National Laboratory, Guangzhou, Guangdong, 510000, PR China.
| | - Tao Xu
- Department of Detection and Diagnosis Technology Research, Guangzhou National Laboratory, Guangzhou, Guangdong, 510000, PR China; School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, Guangdong, 511436, PR China
| | - Fan Xia
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, Hubei, 430074, PR China
| | - Qian Liu
- Department of Detection and Diagnosis Technology Research, Guangzhou National Laboratory, Guangzhou, Guangdong, 510000, PR China; School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, Guangdong, 511436, PR China.
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Xiao L, Luo L, Liu J, Liu L, Han H, Xiao R, Guo L, Xie J, Tang L. A Glycoprotein-Based Surface-Enhanced Raman Spectroscopy-Lateral Flow Assay Method for Abrin and Ricin Detection. Toxins (Basel) 2024; 16:312. [PMID: 39057952 PMCID: PMC11280971 DOI: 10.3390/toxins16070312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 07/04/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Abrin and ricin, both type II ribosome-inactivating proteins, are toxins of significant concern and are under international restriction by the Chemical Weapons Convention and the Biological and Toxin Weapons Convention. The development of a rapid and sensitive detection method for these toxins is of the utmost importance for the first emergency response. Emerging rapid detection techniques, such as surface-enhanced Raman spectroscopy (SERS) and lateral flow assay (LFA), have garnered attention due to their high sensitivity, good selectivity, ease of operation, low cost, and disposability. In this work, we generated stable and high-affinity nanotags, via an efficient freezing method, to serve as the capture module for SERS-LFA. We then constructed a sandwich-style lateral flow test strip using a pair of glycoproteins, asialofetuin and concanavalin A, as the core affinity recognition molecules, capable of trace measurement for both abrin and ricin. The limit of detection for abrin and ricin was 0.1 and 0.3 ng/mL, respectively. This method was applied to analyze eight spiked white powder samples, one juice sample, and three actual botanic samples, aligning well with cytotoxicity assay outcomes. It demonstrated good inter-batch and intra-batch reproducibility among the test strips, and the detection could be completed within 15 min, indicating the suitability of this SERS-LFA method for the on-site rapid detection of abrin and ricin toxins.
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Affiliation(s)
- Lan Xiao
- Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, School of Pharmacy, Minzu University of China, Beijing 100081, China; (L.X.)
- Laboratory of Toxicant Analysis, Academy of Military Medical Sciences, and State Key Laboratory of Toxicology and Medical Countermeasures, Beijing 100850, China
| | - Li Luo
- Laboratory of Toxicant Analysis, Academy of Military Medical Sciences, and State Key Laboratory of Toxicology and Medical Countermeasures, Beijing 100850, China
- Guangdong Lifotronic Biomedical Technology Co., Ltd., Dongguan 523808, China
| | - Jia Liu
- Laboratory of Toxicant Analysis, Academy of Military Medical Sciences, and State Key Laboratory of Toxicology and Medical Countermeasures, Beijing 100850, China
- College of Pharmacy, Hebei Science and Technology University, Shijiazhuang 050018, China
| | - Luyao Liu
- Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, School of Pharmacy, Minzu University of China, Beijing 100081, China; (L.X.)
- Laboratory of Toxicant Analysis, Academy of Military Medical Sciences, and State Key Laboratory of Toxicology and Medical Countermeasures, Beijing 100850, China
| | - Han Han
- State Key Laboratory of Pathogen and Biosecurity, Academy of Military Medical Sciences, Beijing 100071, China
| | - Rui Xiao
- State Key Laboratory of Pathogen and Biosecurity, Academy of Military Medical Sciences, Beijing 100071, China
| | - Lei Guo
- Laboratory of Toxicant Analysis, Academy of Military Medical Sciences, and State Key Laboratory of Toxicology and Medical Countermeasures, Beijing 100850, China
| | - Jianwei Xie
- Laboratory of Toxicant Analysis, Academy of Military Medical Sciences, and State Key Laboratory of Toxicology and Medical Countermeasures, Beijing 100850, China
| | - Li Tang
- Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, School of Pharmacy, Minzu University of China, Beijing 100081, China; (L.X.)
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Huang Y, Ji Y, Zheng M, Li X, Luan Y, Liu Y, Zhang X. Double-Enhanced Photothermal Lateral Flow Biosensor Based on Dual Gold Nanoparticle Conjugates. ACS Sens 2024; 9:2815-2825. [PMID: 38758028 DOI: 10.1021/acssensors.3c02329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Bacterial toxins emerge as the primary triggers of foodborne illnesses, posing a significant threat to human health. To ensure food safety, it is imperative to implement point-of-care testing methods. Lateral flow biosensors (LFBs) based on gold nanoparticles (GNPs) have been commonly used for rapid detection, but their applicationis limited by low sensitivity. Based on the localized surface plasmon resonance and photothermal effect of dual gold nanoparticle conjugates (DGNPs), we developed a smartphone-integrated photothermal LFB (PLFB) with double-enhanced colorimetric and photothermal sensitivity. Through numerical simulations, we verified that DGNPs have significantly enhanced photothermal performance compared to single 15 nm GNPs (SGNPs), and applied DGNPs in PLFB for the detection of staphylococcus enterotoxin A (SEA). The colorimetric and photothermal limits of detection of DGNPs-based PLFB for SEA were 0.091 and 0.0038 ng mL-1, respectively. Compared with the colorimetric detection of the SGNPs-based LFB, the colorimetric detection sensitivity of the DGNPs-based PLFB was increased by 10.7 times, and the photothermal detection sensitivity was further improved by 255.3 times. Moreover, the PLFB exhibits robust reproducibility and exceptional specificity and is applicable for detecting SEA in milk samples. This smartphone-integrated PLFB based on DGNPs allows users to detect toxins simply, conveniently, and quickly and has huge application potential in the field of food safety.
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Affiliation(s)
- Yan Huang
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yongxiang Ji
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Mengxin Zheng
- SINOMACH Academy of Science and Technology Co., Ltd., Beijing 100083, China
| | - Xiujuan Li
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yi Luan
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yang Liu
- Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China
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Chen F, Wang J, Ma J, Song L, Yan H, Wang F, Yang Z, Li F. Novel DNA Biosensing Platform for Detecting HIV Integrase for Highly Sensitive and Quantitative HIV Detection, Diagnosis, and Therapeutic Monitoring. ACS OMEGA 2024; 9:25042-25053. [PMID: 38882085 PMCID: PMC11170629 DOI: 10.1021/acsomega.4c02229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/11/2024] [Accepted: 05/22/2024] [Indexed: 06/18/2024]
Abstract
Straightforward, sensitive, and specific human immunodeficiency virus (HIV) assays are urgently needed. The creation of a point-of-care (POC) device for decentralized diagnostics has the potential to significantly reduce the time to treatment, especially for infectious diseases. Notably, however, many POC solutions proposed to date fall short of meeting the ASSURED guidelines, which are crucial for effective deployment in the field. Herein, we developed a DNA biosensor platform for the specific and quantitative detection of HIV. The platform contains a rolling circle amplification (RCA)-based DNA biosensor and a portable fluorescence detector, in which HIV-encoded integrase (IN) enzyme activity is used as a biomarker to achieve HIV-specific detection. The cleavage and integration reaction of IN on the sensor surface and RCA are combined in this detection platform to perform detection signal cascade amplification, ultimately achieving a detection limit of 0.125 CFU/μL of HIV particles. Moreover, the DNA sensor system exhibited high sensitivity and accuracy for detecting HIV in clinical samples, suggesting that it has potential for application in clinical settings to detect retroviruses other than HIV. In addition, quantitative detection based on this biosensing platform was significantly correlated with the CD4+ lymphocytes count, which can provide guidance for antiretroviral therapy and which affects long-term death risk assessment in HIV patients. Therefore, this DNA biosensing platform based on IN activity is expected to be useful for rapid HIV testing, diagnosis, and treatment monitoring, enabling the development of new POC diagnostic tests and will thus be highly valuable for developing HIV prevention strategies and effective treatments.
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Affiliation(s)
- Fuming Chen
- Translational Medicine Collaborative Innovation Center, The First Affiliated Hospital (Shenzhen People's Hospital), Southern University of Science and Technology, Shenzhen 518055, China
- GuangDong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
| | - Jing Wang
- Translational Medicine Collaborative Innovation Center, The First Affiliated Hospital (Shenzhen People's Hospital), Southern University of Science and Technology, Shenzhen 518055, China
- GuangDong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
| | - Jie Ma
- Translational Medicine Collaborative Innovation Center, The First Affiliated Hospital (Shenzhen People's Hospital), Southern University of Science and Technology, Shenzhen 518055, China
- GuangDong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
| | - Li Song
- Translational Medicine Collaborative Innovation Center, The First Affiliated Hospital (Shenzhen People's Hospital), Southern University of Science and Technology, Shenzhen 518055, China
- GuangDong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
| | - Haojie Yan
- Translational Medicine Collaborative Innovation Center, The First Affiliated Hospital (Shenzhen People's Hospital), Southern University of Science and Technology, Shenzhen 518055, China
- GuangDong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
| | - Feng Wang
- Shenzhen Center for Chronic Disease Control, Shenzhen Institute of Dermatology, Shenzhen 518020, China
| | - Zhengrong Yang
- Shenzhen Pingshan Center for Disease Control and Prevention, Shenzhen 518118, China
| | - Furong Li
- Translational Medicine Collaborative Innovation Center, The First Affiliated Hospital (Shenzhen People's Hospital), Southern University of Science and Technology, Shenzhen 518055, China
- GuangDong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
- Institute of Health Medicine, Southern University of Science and Technology, Shenzhen 518055, China
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Chen Y, Liu J, Song T, Zou X, Li L, Nie Q, Zhang P. Gaps in forensic toxicological analysis: The veiled abrin. Toxicon 2024; 242:107684. [PMID: 38513827 DOI: 10.1016/j.toxicon.2024.107684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 03/23/2024]
Abstract
Abrus precatorius is an herbaceous, flowering plant that is widely distributed in tropical and subtropical regions. Its toxic component, known as abrin, is classified as one of the potentially significant biological warfare agents and bioterrorism tools due to its high toxicity. Abrin poisoning can be utilized to cause accidents, suicides, and homicides, which necessitates attention from clinicians and forensic scientists. Although a few studies have recently identified the toxicological and pharmacological mechanisms of abrin, the exact mechanism remains unclear. Furthermore, the clinical symptoms and pathological changes induced by abrin poisoning have not been fully characterized, and there is a lack of standardized methods for identifying biological samples of the toxin. Therefore, there is an urgent need for further toxicopathologic studies and the development of detection methods for abrin in the field of forensic medicine. This review provides an overview of the clinical symptoms, pathological changes, metabolic changes, toxicologic mechanisms, and detection methods of abrin poisoning from the perspective of forensic toxicology. Additionally, the evidence on abrin in the field of forensic toxicology and forensic pathology is discussed. Overall, this review serves as a reference for understanding the toxicological mechanism of abrin, highlighting the clinical applications of the toxin, and aiding in the diagnosis and forensic identification of toxin poisoning.
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Affiliation(s)
- Yinyu Chen
- Department of Forensic Medicine, Hainan Provincial Academician Workstation (tropical forensic medicine), Hainan Provincial Tropical Forensic Engineering Research Center, Hainan Medical University, Haikou, 571199, China
| | - Jiaqi Liu
- Department of Neurology, the First Affiliated Hospital, International School of Public Health and One Health, Hainan Medical University, Haikou, 570102, China
| | - Tao Song
- Department of Forensic Medicine, Hainan Provincial Academician Workstation (tropical forensic medicine), Hainan Provincial Tropical Forensic Engineering Research Center, Hainan Medical University, Haikou, 571199, China
| | - Xing Zou
- Department of Forensic Medicine, Hainan Provincial Academician Workstation (tropical forensic medicine), Hainan Provincial Tropical Forensic Engineering Research Center, Hainan Medical University, Haikou, 571199, China
| | - Leilei Li
- Department of Forensic Medicine, Hainan Provincial Academician Workstation (tropical forensic medicine), Hainan Provincial Tropical Forensic Engineering Research Center, Hainan Medical University, Haikou, 571199, China
| | - Qianyun Nie
- Department of Pathology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, 571199, China; Department of Pathology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, China.
| | - Peng Zhang
- Department of Forensic Medicine, Hainan Provincial Academician Workstation (tropical forensic medicine), Hainan Provincial Tropical Forensic Engineering Research Center, Hainan Medical University, Haikou, 571199, China.
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Wang Y, Liu P, Ye Y, Hammock BD, Zhang C. An Integrated Approach to Improve the Assay Performance of Quantum Dot-Based Lateral Flow Immunoassays by Using Silver Deposition. Microchem J 2023; 192:108932. [PMID: 38344211 PMCID: PMC10857874 DOI: 10.1016/j.microc.2023.108932] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Traditional quantum dot-based lateral flow immunoassay (QD-LFIA) is limited to signal loss in part by the blinking, photobleaching and oxidative quenching of QD probes. Inspired by the good application of silver deposition on QD surfaces in tissue imaging, and in the context of improving the assay performance without compromising the simplicity and practicality, we report that introducing the QD-silver combination to the LFIA system, has the advantages of accuracy improvement, signal enhancement and user friendliness promotion, but maintains the cost-effective property and commercial accessibility of QD-LFIA. The effect was shown by using CdSe/ZnS QD-LFIA coupled with anti-sodium pentachlorophenate antibody, which provided a 4-fold improvement in the signal, a 2.5-fold improvement in the detection limit and a zero false-negative rate for sodium pentachlorophenate analysis in chicken samples. The proposed LFIA integrates the possibilities of colorimetric and fluorometric detection with different detection limits (fluorometric at 10 ng/mL and colorimetric at 4 ng/mL) and with acceptable detection times (fluorometric at 12 min and colorimetric at 27 min). The current results indicate that this QD-silver combined LFIA is complementary to conventional fluorescence LFIA and could be an inexpensive, versatile, and sensitive alternative.
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Affiliation(s)
- Yulong Wang
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
- Anhui Science and Technology University, Fengyang 233100, China
| | - Pengyan Liu
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yuhui Ye
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Bruce D. Hammock
- Department of Entomology and Nematology, UCD Comprehensive Cancer Center, University of California, Davis, CA 95616, USA
| | - Cunzheng Zhang
- Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Anhui Science and Technology University, Fengyang 233100, China
- School of Biology and food engineering, Jiangsu University, Zhenjiang 212013, China
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Panferov VG, Zherdev AV, Dzantiev BB. Post-Assay Chemical Enhancement for Highly Sensitive Lateral Flow Immunoassays: A Critical Review. BIOSENSORS 2023; 13:866. [PMID: 37754100 PMCID: PMC10526817 DOI: 10.3390/bios13090866] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/15/2023] [Accepted: 08/23/2023] [Indexed: 09/28/2023]
Abstract
Lateral flow immunoassay (LFIA) has found a broad application for testing in point-of-care (POC) settings. LFIA is performed using test strips-fully integrated multimembrane assemblies containing all reagents for assay performance. Migration of liquid sample along the test strip initiates the formation of labeled immunocomplexes, which are detected visually or instrumentally. The tradeoff of LFIA's rapidity and user-friendliness is its relatively low sensitivity (high limit of detection), which restricts its applicability for detecting low-abundant targets. An increase in LFIA's sensitivity has attracted many efforts and is often considered one of the primary directions in developing immunochemical POC assays. Post-assay enhancements based on chemical reactions facilitate high sensitivity. In this critical review, we explain the performance of post-assay chemical enhancements, discuss their advantages, limitations, compared limit of detection (LOD) improvements, and required time for the enhancement procedures. We raise concerns about the performance of enhanced LFIA and discuss the bottlenecks in the existing experiments. Finally, we suggest the experimental workflow for step-by-step development and validation of enhanced LFIA. This review summarizes the state-of-art of LFIA with chemical enhancement, offers ways to overcome existing limitations, and discusses future outlooks for highly sensitive testing in POC conditions.
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Affiliation(s)
- Vasily G. Panferov
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia; (V.G.P.); (A.V.Z.)
- Department of Chemistry, York University, Toronto, ON M3J 1P3, Canada
| | - Anatoly V. Zherdev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia; (V.G.P.); (A.V.Z.)
| | - Boris B. Dzantiev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia; (V.G.P.); (A.V.Z.)
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Luo YJ, Ye QC, Xie TJ, Tian LL, Yan Y, Lei Z, Wang DM, Huang CZ, Li YF, Zhen SJ. Electrostatic assemblies of molecularly imprinted polymers on the surface of electrospun nanofiber membranes for the point-of-care detection of thiodiglycol, a sulfur mustard poisoning metabolic marker. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1500-1505. [PMID: 36916642 DOI: 10.1039/d3ay00185g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In this study, molecularly imprinted polymers (MIPs) were assembled on the surface of ethylene imine polymer (PEI)/poly(vinyl alcohol) (PVA) electrospun nanofiber membranes for the point-of-care testing (POCT) of thiodiglycol (TDG), a sulfur mustard poisoning metabolic marker, using concentrated gold nanoparticles (AuNPs) as the signal reporting units. The MIPs/PEI/PVA nanofiber membranes could capture TDG specifically through the recognition interaction between MIPs and TDG. Then, AuNPs were adsorbed onto the MIPs/PEI/PVA nanofiber membranes through the Au-S interaction between TDG and AuNPs to produce a visible red color. In order to improve the sensitivity, the silver-enhanced solutions were used to deepen the color of the nanofiber membranes and the software Image J was used to read the gray value as the signal response for subsequent analysis. There was a good linear relationship between the color change of the MIPs/PEI/PVA nanofiber membranes and the TDG concentration from 0.1 ng mL-1 to 1.0 μg mL-1, and the limit of detection was 38 pg mL-1. This method was applied for the selective detection of TDG in urine, showing great potential for the clinical diagnosis of mustard gas poisoning.
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Affiliation(s)
- Yu Jie Luo
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Qi Chao Ye
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Tian Jin Xie
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Li Li Tian
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Yuan Yan
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Zhan Lei
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Science, Southwest University, Chongqing 400715, P. R. China
| | - Dong Mei Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Science, Southwest University, Chongqing 400715, P. R. China
| | - Yuan Fang Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Shu Jun Zhen
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
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10
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Bacon A, Wang W, Lee H, Umrao S, Sinawang PD, Akin D, Khemtonglang K, Tan A, Hirshfield S, Demirci U, Wang X, Cunningham BT. Review of HIV Self Testing Technologies and Promising Approaches for the Next Generation. BIOSENSORS 2023; 13:298. [PMID: 36832064 PMCID: PMC9954708 DOI: 10.3390/bios13020298] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/06/2023] [Accepted: 02/14/2023] [Indexed: 05/28/2023]
Abstract
The ability to self-test for HIV is vital to preventing transmission, particularly when used in concert with HIV biomedical prevention modalities, such as pre-exposure prophylaxis (PrEP). In this paper, we review recent developments in HIV self-testing and self-sampling methods, and the potential future impact of novel materials and methods that emerged through efforts to develop more effective point-of-care (POC) SARS-CoV-2 diagnostics. We address the gaps in existing HIV self-testing technologies, where improvements in test sensitivity, sample-to-answer time, simplicity, and cost are needed to enhance diagnostic accuracy and widespread accessibility. We discuss potential paths toward the next generation of HIV self-testing through sample collection materials, biosensing assay techniques, and miniaturized instrumentation. We discuss the implications for other applications, such as self-monitoring of HIV viral load and other infectious diseases.
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Affiliation(s)
- Amanda Bacon
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Weijing Wang
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Hankeun Lee
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Saurabh Umrao
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Center for Genomic Diagnostics, Woese Institute for Genomic Biology, Urbana, IL 61801, USA
| | - Prima Dewi Sinawang
- Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, CA 94304, USA
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Demir Akin
- Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, CA 94304, USA
- Center for Cancer Nanotechnology Excellence for Translational Diagnostics (CCNE-TD), School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Kodchakorn Khemtonglang
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Anqi Tan
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Sabina Hirshfield
- Special Treatment and Research (STAR) Program, Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, New York, NY 11203, USA
| | - Utkan Demirci
- Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Palo Alto, CA 94304, USA
| | - Xing Wang
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Center for Genomic Diagnostics, Woese Institute for Genomic Biology, Urbana, IL 61801, USA
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Brian T. Cunningham
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Nick Holonyak Jr. Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Center for Genomic Diagnostics, Woese Institute for Genomic Biology, Urbana, IL 61801, USA
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11
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Wei Z, Luciano K, Xia X. Catalytic Gold-Iridium Nanoparticles as Labels for Sensitive Colorimetric Lateral Flow Assay. ACS NANO 2022; 16:21609-21617. [PMID: 36448915 DOI: 10.1021/acsnano.2c10574] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The colorimetric lateral flow assay (CLFA, also known as test strip) is a widely used point-of-care diagnostic technology. It has been a challenge to significantly improve the detection sensitivity of CLFA without involving additional equipment and/or compromising its simplicity. In this work, we break through the detection limit barrier of CLFA by developing a type of catalytic nanoparticles (NPs) used as labels. Specifically, the NPs were engineered by coating conventional gold NPs (AuNPs) with iridium (Ir) to form an Au-Ir core-shell structure. Such Au-Ir NPs possess ultrahigh peroxidase-like catalytic activities. A single Au-Ir NP can generate up to 107 colored molecules per second by catalyzing peroxidase substrates. The strong color signal from the catalysis ensures a high sensitivity of associated CLFA. The Au-Ir NP-based CLFA was successfully applied to the detection of two different cancer biomarkers that achieved limits of detection at the low picogram per milliliter level, hundreds of times lower than those of conventional AuNP-based CLFA.
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Affiliation(s)
- Zhiyuan Wei
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, United States
| | - Keven Luciano
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, United States
| | - Xiaohu Xia
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, United States
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32816, United States
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12
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Taranova NA, Bulanaya AA, Zherdev AV, Dzantiev BB. Triple Enhancement for Sensitive Immunochromatographic Assay: A Case Study for Human Fatty Acid-Binding Protein Detection. BIOSENSORS 2022; 12:1166. [PMID: 36551132 PMCID: PMC9775130 DOI: 10.3390/bios12121166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/29/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
The work considers a combination of three enhancing approaches for immunochromatographic assay (ICA) and the integration of their impacts into changes of the limit of detection (LOD). Human fatty acid binding protein (FABP), an early biomarker of acute myocardial infarction, was the target analyte. Starting from the common ICA protocol with an LOD equal to 11.2 ng/mL, three approaches were realized: (1) replacement of spherical gold nanoparticles with gold nanoflowers having a branched surface (20-fold lowering the LOD); (2) enhanced labeling of immune complexes via nanoparticle aggregates (15-fold lowering); (3) in-situ growth of bound nanoparticles by reduction of gold salts (3-fold lowering). Single and combined implementations of these approaches have been studied. It has been shown that the LOD decrease for combined approaches is close to the multiplied contribution of each of them. The final LOD for FABP was 0.05 ng/mL, which is 220 times lower than the LOD for the common ICA protocol. The efficiency of the enhanced ICA with three combined approaches was confirmed by testing human serum samples for FABP presence and content. The development presents a new efficient technique for rapid sensitive detection of FABP for medical diagnostics. Moreover, the demonstrated multiple enhancements could be applied for various demanded analytes.
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13
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Kong T, Bai DY, Liu ZH, Ma YB, Zhang C, Wang GY, Zhang SH. Rapid and sensitive detection of metal chelator ethylenediamine tetraacetic acid. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Li M, Lu W, Mao Y, Qiu X, Du D. An enhanced immunochromatography assay based on gold growth on the surface of E. coli carrier for the simultaneous detection of mycotoxins. Talanta 2022; 251:123798. [DOI: 10.1016/j.talanta.2022.123798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/22/2022] [Accepted: 07/28/2022] [Indexed: 10/16/2022]
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15
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Thangavelu RM, Kadirvel N, Balasubramaniam P, Viswanathan R. Ultrasensitive nano-gold labelled, duplex lateral flow immunochromatographic assay for early detection of sugarcane mosaic viruses. Sci Rep 2022; 12:4144. [PMID: 35264671 PMCID: PMC8907228 DOI: 10.1038/s41598-022-07950-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 02/17/2022] [Indexed: 02/08/2023] Open
Abstract
Sugarcane is one of the important food and bioenergy crops, cultivated all over the world except European continent. Like many other crops, sugarcane production and quality are hampered by various plant pathogens, among them viruses that infect systemically and cause severe impact to cane growth. The viruses are efficiently managed by their elimination through tissue culture combined with molecular diagnostics, which could detect virus titre often low at 10-12 g mL-1. To harmonize the virus diagnostics by molecular methods, we established a nanocatalysis-based high sensitive lateral flow immunochromatographic assay (LFIA) simultaneously to detect two major sugarcane viruses associated with mosaic disease in sugarcane. LFIA is known for poor sensitivity and stability with its signalling conjugates. However, we synthesized positively charged Cysteamine-gold nanoparticles and used them to prepare highly stable to sensitive immunoconjugates and as a colourimetric detection label. Further nanogold signal enhancement was performed on LFIA to obtain a high detection sensitivity, which is higher than the conventional immunoassays. The linear detection range of the nano-LIFA was 10-6 to 10-9 g mL-1, and with the signal enhancement, the LOD reached up to 10-12 g ml-1. This research paper provides relative merits and advancement on nano-LFIA for specific detection of sugarcane viruses in sugarcane for the first time.
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Affiliation(s)
| | - Nithya Kadirvel
- Plant Pathology Section, Division of Crop Protection, ICAR-Sugarcane Breeding Institute, Coimbatore, 641 007, India
| | | | - Rasappa Viswanathan
- Plant Pathology Section, Division of Crop Protection, ICAR-Sugarcane Breeding Institute, Coimbatore, 641 007, India.
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16
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Li Z, Xu H, Ma B, Luo L, Guo L, Zhang P, Zhao Y, Wang L, Xie J. Neutralizing Monoclonal Antibody, mAb 10D8, Is an Effective Detoxicant against Abrin-a Both In Vitro and In Vivo. Toxins (Basel) 2022; 14:toxins14030164. [PMID: 35324661 PMCID: PMC8955035 DOI: 10.3390/toxins14030164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/17/2022] [Accepted: 02/21/2022] [Indexed: 02/05/2023] Open
Abstract
Abrin is a types II ribosome-inactivating protein (RIP) isolated from Abrus precatorious seeds, which comprises a catalytically active A chain and a lectin-like B chain linked by a disulfide bond. Four isotoxins of abrin have been reported with similar amino-acid composition but different cytotoxicity, of which abrin-a is the most potent toxin. High lethality and easy availability make abrin a potential bioterrorism agent. However, there are no antidotes available for managing abrin poisoning, and treatment is only symptomatic. Currently, neutralizing antibodies remain the most effective therapy against biotoxin poisoning. In this study, we prepared, identified, and acquired a high-affinity neutralizing monoclonal antibody (mAb) 10D8 with a potent pre- and post-exposure protective effect against cytotoxicity and animal toxicity induced by abrin-a or abrin crude extract. The mAb 10D8 could rescue the mouse injected intraperitoneally with a 25 × LD50 dose of abrin-a from lethality and prevent tissue damages. Results indicated that 10D8 does not prevent the binding and internalization of abrin-a to cells but inhibits the enzymatic activity of abrin-a and reduces protein synthesis inhibition of cells. The high affinity, good specificity, and potent antitoxic efficiency of 10D8 make it a promising candidate for therapeutic antibodies against abrin.
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Affiliation(s)
- Zhi Li
- State Key Laboratory of Toxicology and Medical Countermeasures, Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China; (Z.L.); (B.M.); (L.L.); (L.G.); (L.W.)
| | - Hua Xu
- State Key Laboratory of Toxicology and Medical Countermeasures, Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China; (Z.L.); (B.M.); (L.L.); (L.G.); (L.W.)
- Correspondence: (H.X.); (J.X.); Tel.: +86-10-66930621 (H.X.); +86-10-68225893 (J.X.)
| | - Bo Ma
- State Key Laboratory of Toxicology and Medical Countermeasures, Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China; (Z.L.); (B.M.); (L.L.); (L.G.); (L.W.)
| | - Li Luo
- State Key Laboratory of Toxicology and Medical Countermeasures, Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China; (Z.L.); (B.M.); (L.L.); (L.G.); (L.W.)
| | - Lei Guo
- State Key Laboratory of Toxicology and Medical Countermeasures, Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China; (Z.L.); (B.M.); (L.L.); (L.G.); (L.W.)
| | - Pingping Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Key Laboratory of POCT for Bioemergency and Clinic, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China; (P.Z.); (Y.Z.)
| | - Yong Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Key Laboratory of POCT for Bioemergency and Clinic, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China; (P.Z.); (Y.Z.)
| | - Lili Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China; (Z.L.); (B.M.); (L.L.); (L.G.); (L.W.)
| | - Jianwei Xie
- State Key Laboratory of Toxicology and Medical Countermeasures, Laboratory of Toxicant Analysis, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China; (Z.L.); (B.M.); (L.L.); (L.G.); (L.W.)
- Correspondence: (H.X.); (J.X.); Tel.: +86-10-66930621 (H.X.); +86-10-68225893 (J.X.)
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17
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Bhatia A, Nandhakumar P, Kim G, Lee NS, Yoon YH, Yang H. Simple and fast Ag deposition method using a redox enzyme label and quinone substrate for the sensitive electrochemical detection of thyroid-stimulating hormone. Biosens Bioelectron 2022; 197:113773. [PMID: 34763152 DOI: 10.1016/j.bios.2021.113773] [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: 07/08/2021] [Revised: 11/01/2021] [Accepted: 11/04/2021] [Indexed: 11/25/2022]
Abstract
Enzyme-induced seedless Ag deposition is useful for selective Ag deposition and subsequent electrochemical Ag oxidation; however, a washing step is required after the deposition and before the electrochemical oxidation as the enzyme substrate can be oxidized during the electrochemical oxidation. Here, we report a fast Ag deposition method using a redox enzyme and quinone substrate that does not require a washing step. We found that the quinone substrate is reduced by a redox enzyme label, which is later oxidized to its original form via the reduction of Ag+ to Ag. Moreover, the quinone substrate is not electrochemically oxidized during the electrochemical Ag oxidation. We selected one diaphorase and 1,4-naphthoquinone from among seven redox enzymes (four diaphorases and three glucose-oxidizing enzymes) and six quinones, respectively. We applied this Ag deposition method for the detection of thyroid-stimulating hormone (TSH) over a dynamic range from 100 fg/mL to 100 ng/mL and found that TSH could be detected at concentrations as low as approximately 100 fg/mL in artificial serum. Therefore, the Ag deposition strategy developed in this study exhibits promising potential for ultrasensitive clinical applications.
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Affiliation(s)
- Aman Bhatia
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, 46241, South Korea
| | - Ponnusamy Nandhakumar
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, 46241, South Korea
| | - Gyeongho Kim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, 46241, South Korea
| | | | | | - Haesik Yang
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan, 46241, South Korea.
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18
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Chen X, Ding L, Huang X, Xiong Y. Tailoring noble metal nanoparticle designs to enable sensitive lateral flow immunoassay. Am J Cancer Res 2022; 12:574-602. [PMID: 34976202 PMCID: PMC8692915 DOI: 10.7150/thno.67184] [Citation(s) in RCA: 59] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/09/2021] [Indexed: 12/13/2022] Open
Abstract
Lateral flow immunoassay (LFIA) with gold nanoparticles (AuNPs) as signal reporters is a popular point-of-care diagnostic technique. However, given the weak absorbance of traditional 20-40 nm spherical AuNPs, their sensitivity is low, which greatly limits the wide application of AuNP-based LFIA. With the rapid advances in materials science and nanotechnology, the synthesis of noble metal nanoparticles (NMNPs) has enhanced physicochemical properties such as optical, plasmonic, catalytic, and multifunctional activity by simply engineering their physical parameters, including the size, shape, composition, and external structure. Using these engineered NMNPs as an alternative to traditional AuNPs, the sensitivity of LFIA has been significantly improved, thereby greatly expanding the working range and application scenarios of LFIA, particularly in trace analysis. Therefore, in this review, we will focus on the design of engineered NMNPs and their demonstration in improving LFIA. We highlight the strategies available for tailoring NMNP designs, the effect of NMNP engineering on their performance, and the working principle of each engineering design for enhancing LFIA. Finally, current challenges and future improvements in this field are briefly discussed.
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19
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Wang Z, Zhao J, Xu X, Guo L, Xu L, Sun M, Hu S, Kuang H, Xu C, Li A. An Overview for the Nanoparticles-Based Quantitative Lateral Flow Assay. SMALL METHODS 2022; 6:e2101143. [PMID: 35041285 DOI: 10.1002/smtd.202101143] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/27/2021] [Indexed: 06/14/2023]
Abstract
The development of the lateral flow assay (LFA) has received much attention in both academia and industry because of their broad applications to food safety, environmental monitoring, clinical diagnosis, and so forth. The user friendliness, low cost, and easy operation are the most attractive advantages of the LFA. In recent years, quantitative detection has become another focus of LFA development. Here, the most recent studies of quantitative LFAs are reviewed. First, the principles and corresponding formats of quantitative LFAs are introduced. In the biomaterial and nanomaterial sections, the detection, capture, and signal amplification biomolecules and the optical, fluorescent, luminescent, and magnetic labels used in LFAs are described. The invention of dedicated strip readers has drawn further interest in exploiting the better performance of LFAs. Therefore, next, the development of dedicated reader devices is described and the usefulness and specifications of these devices for LFAs are discussed. Finally, the applications of LFAs in the detection of metal ions, biotoxins, pathogenic microorganisms, veterinary drugs, and pesticides in the fields of food safety and environmental health and the detection of nucleic acids, biomarkers, and viruses in clinical analyses are summarized.
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Affiliation(s)
- Zhongxing Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Jing Zhao
- Department of Radiology, Affiliated Hospital, Jiangnan University, No. 1000, Hefeng Road, Wuxi, Jiangsu, 214122, China
| | - Xinxin Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Lingling Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Liguang Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Maozhong Sun
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Shudong Hu
- Department of Radiology, Affiliated Hospital, Jiangnan University, No. 1000, Hefeng Road, Wuxi, Jiangsu, 214122, China
| | - Hua Kuang
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Chuanlai Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Aike Li
- Academy of National Food and Strategic Reserves Administration, No. 11, Baiwanzhuang Street, Beijing, 100037, P. R. China
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20
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Advanced trap lateral flow immunoassay sensor for the detection of cortisol in human bodily fluids. Sci Rep 2021; 11:22580. [PMID: 34799635 PMCID: PMC8604903 DOI: 10.1038/s41598-021-02084-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 11/09/2021] [Indexed: 11/08/2022] Open
Abstract
Paper-based biosensors based on lateral flow immunoassay (LFI) are promising candidates for POC diagnosis because of their ease of use and rapid target detection. However, the low sensitivity of LFI limits its application, and signal amplification has been used in numerous studies to increase its sensitivity. We developed an advanced trap LFI (α-trapLFI), a simple-to-use sensor, with an additional step for signal amplification. Here, signal amplification is automatically implemented following delayed release of enhancement solution induced by water-soluble polyvinyl alcohol tape. As the polyvinyl alcohol tape is exposed to water, its polymer structure is perturbed (within 5 min), allowing ions to pass through. This new sensor was designed to have a short time delay between the flow of solutions used for the immunoassay and signal amplification. The α-trapLFI was subsequently used to detect cortisol with high sensitivity (9.1 pg∙mL-1) over a broad detection range (0.01-1000 ng∙mL-1) in bodily fluids. Furthermore, an excellent correlation was obtained by analyzing 20 human real saliva samples using this sensor and a conventional ELISA (R2 = 0.90). The new sensor will be helpful in detecting various small molecules for simple, rapid, and portable POC diagnosis of stress disorders.
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21
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Zhu F, Ji Y, Li L, Bai X, Liu X, Luo Y, Liu T, Lin B, Lu Y. High-Throughput Single-Cell Extracellular Vesicle Secretion Analysis on a Desktop Scanner without Cell Counting. Anal Chem 2021; 93:13152-13160. [PMID: 34551257 DOI: 10.1021/acs.analchem.1c01446] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Single-cell EV (extracellular vesicle) secretion analysis is emerging for a better understanding of non-genetic cellular heterogeneity regulating human health and diseases through intercellular mediators. However, the requirements of expensive and bulky instrumentations hinder its widespread use. Herein, by combining gold nanoparticle-enhanced silver staining and the Poisson distribution, we reported the use of a home-use scanner to realize high-throughput single-cell EV secretion analysis without cell counting. We applied the platform to analyze the secretions of different EV phenotypes with the human oral squamous cell carcinoma cell line and primary cells from patients, which generated single-cell results comparable with those of the immunofluorescence approach. Notably, we also realized the quantification of the number of EVs secreted from every single cell using their respective titration curves obtained from population samples, making it possible to directly compare different EV phonotypes in regard to their secretion number, secretion rate, and so forth. The technology introduced here is simple, easy to operate, and of low cost, which make it a potential, easily accessible, and affordable tool for widespread use in both basic and clinical research.
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Affiliation(s)
- Fengjiao Zhu
- Department of Biotechnology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yahui Ji
- Department of Biotechnology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Linmei Li
- Department of Biotechnology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xue Bai
- Department of Biotechnology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xianming Liu
- Department of Biotechnology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yong Luo
- State Key Laboratory of Fine Chemicals, Department of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Tingjiao Liu
- College of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Bingcheng Lin
- Department of Biotechnology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yao Lu
- Department of Biotechnology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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22
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Noviana E, Ozer T, Carrell CS, Link JS, McMahon C, Jang I, Henry CS. Microfluidic Paper-Based Analytical Devices: From Design to Applications. Chem Rev 2021; 121:11835-11885. [DOI: 10.1021/acs.chemrev.0c01335] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Eka Noviana
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, Indonesia 55281
| | - Tugba Ozer
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey 34220
| | - Cody S. Carrell
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Jeremy S. Link
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Catherine McMahon
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Ilhoon Jang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
- Institute of Nano Science and Technology, Hanyang University, Seoul, South Korea 04763
| | - Charles S. Henry
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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23
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Bragina VA, Orlov AV, Znoyko SL, Pushkarev AV, Novichikhin DO, Guteneva NV, Nikitin MP, Gorshkov BG, Nikitin PI. Nanobiosensing based on optically selected antibodies and superparamagnetic labels for rapid and highly sensitive quantification of polyvalent hepatitis B surface antigen. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:2424-2433. [PMID: 33998615 DOI: 10.1039/d1ay00354b] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hepatitis B surface antigen (HBsAg) is the most clinically relevant serological marker of hepatitis B virus (HBV) infection. Its detection in blood is extremely important for identification of asymptomatic individuals or chronic HBV carriers, screening blood donors, and early seroconversion. Rapid point-of-care HBsAg tests are predominantly qualitative, and their analytical sensitivity does not meet the requirements of regulatory agencies. We present a highly sensitive lateral flow assay based on superparamagnetic nanoparticles for rapid quantification (within 30 min) of polyvalent HBsAg in serum. The demonstrated limit of detection (LOD) of 80 pg mL-1 in human serum is better than both the FDA recommendations for HBsAg assays (which is 0.5 ng mL-1) and the sensitivity of traditional laboratory-based methods such as enzyme linked immunosorbent assays. Along with the attractive LOD at lower concentrations and the wide linear dynamic range of more than 2.5 orders, the assay features rapidity, user-friendliness, on-site operation and effective performance in the complex biological medium. These are due to the combination of the immunochromatographic approach with a highly sensitive electronic registration of superparamagnetic nanolabels over the entire volume of a 3D test structure by their non-linear magnetization and selection of optimal antibodies by original optical label-free methods. The developed cost-efficient bioanalytical technology can be used in many socially important fields such as out-of-lab screening and diagnosis of HBV infection at a point-of-demand, especially in hard-to-reach or sparsely populated areas, as well as highly endemic regions.
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Affiliation(s)
- Vera A Bragina
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilov St, Moscow, 119991, Russia.
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24
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Worbs S, Kampa B, Skiba M, Hansbauer EM, Stern D, Volland H, Becher F, Simon S, Dorner MB, Dorner BG. Differentiation, Quantification and Identification of Abrin and Abrus precatorius Agglutinin. Toxins (Basel) 2021; 13:toxins13040284. [PMID: 33919561 PMCID: PMC8073929 DOI: 10.3390/toxins13040284] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/10/2021] [Accepted: 04/13/2021] [Indexed: 12/21/2022] Open
Abstract
Abrin, the toxic lectin from the rosary pea plant Abrus precatorius, has gained considerable interest in the recent past due to its potential malevolent use. However, reliable and easy-to-use assays for the detection and discrimination of abrin from related plant proteins such as Abrus precatorius agglutinin or the homologous toxin ricin from Ricinus communis are sparse. To address this gap, a panel of highly specific monoclonal antibodies was generated against abrin and the related Abrus precatorius agglutinin. These antibodies were used to establish two sandwich ELISAs to preferentially detect abrin or A. precatorius agglutinin (limit of detection 22 pg/mL for abrin; 35 pg/mL for A. precatorius agglutinin). Furthermore, an abrin-specific lateral flow assay was developed for rapid on-site detection (limit of detection ~1 ng/mL abrin). Assays were validated for complex food, environmental and clinical matrices illustrating broad applicability in different threat scenarios. Additionally, the antibodies turned out to be suitable for immuno-enrichment strategies in combination with mass spectrometry-based approaches for unambiguous identification. Finally, we were able to demonstrate for the first time how the developed assays can be applied to detect, identify and quantify abrin from a clinical sample derived from an attempted suicide case involving A. precatorius.
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Affiliation(s)
- Sylvia Worbs
- Biological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany; (S.W.); (B.K.); (M.S.); (E.-M.H.); (D.S.); (M.B.D.)
| | - Bettina Kampa
- Biological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany; (S.W.); (B.K.); (M.S.); (E.-M.H.); (D.S.); (M.B.D.)
| | - Martin Skiba
- Biological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany; (S.W.); (B.K.); (M.S.); (E.-M.H.); (D.S.); (M.B.D.)
| | - Eva-Maria Hansbauer
- Biological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany; (S.W.); (B.K.); (M.S.); (E.-M.H.); (D.S.); (M.B.D.)
- Département Médicaments et Technologies pour la Santé, Université Paris Saclay, CEA, INRAE, SPI, 91191 Gif-sur-Yvette, France; (H.V.); (F.B.); (S.S.)
| | - Daniel Stern
- Biological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany; (S.W.); (B.K.); (M.S.); (E.-M.H.); (D.S.); (M.B.D.)
| | - Hervé Volland
- Département Médicaments et Technologies pour la Santé, Université Paris Saclay, CEA, INRAE, SPI, 91191 Gif-sur-Yvette, France; (H.V.); (F.B.); (S.S.)
| | - François Becher
- Département Médicaments et Technologies pour la Santé, Université Paris Saclay, CEA, INRAE, SPI, 91191 Gif-sur-Yvette, France; (H.V.); (F.B.); (S.S.)
| | - Stéphanie Simon
- Département Médicaments et Technologies pour la Santé, Université Paris Saclay, CEA, INRAE, SPI, 91191 Gif-sur-Yvette, France; (H.V.); (F.B.); (S.S.)
| | - Martin B. Dorner
- Biological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany; (S.W.); (B.K.); (M.S.); (E.-M.H.); (D.S.); (M.B.D.)
| | - Brigitte G. Dorner
- Biological Toxins, Centre for Biological Threats and Special Pathogens, Robert Koch Institute, Seestr. 10, 13353 Berlin, Germany; (S.W.); (B.K.); (M.S.); (E.-M.H.); (D.S.); (M.B.D.)
- Correspondence: ; Tel.: +49-30-18754-2500
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25
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Panferov VG, Safenkova IV, Zherdev AV, Dzantiev BB. Methods for Increasing Sensitivity of Immunochromatographic Test Systems with Colorimetric Detection (Review). APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821020113] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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26
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Shirshahi V, Liu G. Enhancing the analytical performance of paper lateral flow assays: From chemistry to engineering. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116200] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Recent advances in sensitivity enhancement for lateral flow assay. Mikrochim Acta 2021; 188:379. [PMID: 34647157 PMCID: PMC8513549 DOI: 10.1007/s00604-021-05037-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/25/2021] [Indexed: 12/04/2022]
Abstract
Conventional lateral flow assay (LFA) is typically performed by observing the color changes in the test lines by naked eyes, which achieves considerable commercial success and has a significant impact on the fields of food safety, environment monitoring, disease diagnosis, and other applications. However, this qualitative detection method is not very suitable for low levels of disease biomarkers' detection. Although many nanomaterials are used as new labels for LFA, additional readers limit their application to some extent. Fortunately, a lot of work has been done for improving the sensitivity of LFA. In this review, currently reported LFA sensitivity enhancement methods with an objective evaluation are summarized, such as sample pretreatment, the change of flow rate, and label evolution, and future development direction and challenges of LFAs are discussed.
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29
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Bu T, Bai F, Sun X, Tian Y, Zhang M, Zhao S, He K, Wang X, Jia P, Wang L. An innovative prussian blue nanocubes decomposition-assisted signal amplification strategy suitable for competitive lateral flow immunoassay to sensitively detect aflatoxin B 1. Food Chem 2020; 344:128711. [PMID: 33267991 DOI: 10.1016/j.foodchem.2020.128711] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 11/16/2020] [Accepted: 11/19/2020] [Indexed: 11/16/2022]
Abstract
A prussian blue nanocubes decomposition-assisted signal amplification strategy for competitive lateral flow immunoassay (PBNCD-SALFIA) was innovatively proposed to analyze aflatoxin B1 (AFB1) in foodstuffs. The signal was amplified on account of the PBNCs can degrade and fade under alkaline condition, which could weak the color of the test- and control-lines, thereby improving the sensitivity of the sensor. The strategy was technically-simple, just using NaOH as an amplifier can realize signal amplification in the competition assay. Under optimized conditions, the enhanced strip exhibited excellent specificity and sensitivity in AFB1 monitoring with a detection limit of 23 pg/mL, which was approximately 4- and 8-folds lower than those of PBNCs-LFIA (90 pg/mL) and conventional gold nanoparticles-LFIA (175 pg/mL), respectively. Taking the advantage of the color-fading, this platform revealing the lowest detectable concentration of 0.184, 0.368 and 0.184 μg/kg for AFB1 in corn, peanut and pumpkin seed within 58 min, separately, showing reliable results.
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Affiliation(s)
- Tong Bu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Feier Bai
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xinyu Sun
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yongming Tian
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Meng Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Shuang Zhao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Kunyi He
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xin Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Pei Jia
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Li Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
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30
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Rodriguez RS, O'Keefe TL, Froehlich C, Lewis RE, Sheldon TR, Haynes CL. Sensing Food Contaminants: Advances in Analytical Methods and Techniques. Anal Chem 2020; 93:23-40. [PMID: 33147958 DOI: 10.1021/acs.analchem.0c04357] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Rebeca S Rodriguez
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Tana L O'Keefe
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Clarice Froehlich
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Riley E Lewis
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Trever R Sheldon
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Christy L Haynes
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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31
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Immunochromatographic System for Serodiagnostics of Cattle Brucellosis Using Gold Nanoparticles and Signal Amplification with Quantum Dots. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10030738] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In this article, we describe an immunochromatographic test system developed for rapid serodiagnostics of cattle brucellosis using two markers: Gold nanoparticles (GNPs) and quantum dots (QDs). The test system was compared with immunochromatographic serodiagnostics systems that use only one marker. The approbation of the test system was conducted on samples of cattle sera with low, but diagnostically significant titers of specific antibodies. We show that when two conjugates are used, the intensity of the detectable signal increases by 2–3 times compared with the test system using the QD conjugate and by more than nine times compared with the system using the GNP conjugate.
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32
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Danthanarayana AN, Finley E, Vu B, Kourentzi K, Willson RC, Brgoch J. A multicolor multiplex lateral flow assay for high-sensitivity analyte detection using persistent luminescent nanophosphors. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:272-280. [PMID: 32577135 PMCID: PMC7310964 DOI: 10.1039/c9ay02247c] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Incorporating two persistent luminescent nanophosphors (PLNPs), green-emitting SrAl2O4:Eu2+,Dy3+ (SAO) and blue-emitting (Sr0.625Ba0.375)2MgSi2O7:Eu2+,Dy3+ (SBMSO), in a single lateral flow assay (LFA) establishes a luminescence-based, multiplex point-of-need test capable of simultaneously detecting two different analytes in a single sample. The advantages of this system are the high sensitivity and photostability of PLNPs, while only requiring access to minimal hardware and a smartphone for signal detection. The PLNPs were obtained by first wet milling bulk synthesized phosphor powders, followed by fractionation using differential centrifugal sedimentation to obtain monodisperse nanoparticles. A modified Stöber process was then employed to encapsulate the nanoparticles in a water-stable silica shell followed by attaching antibodies to the particles' surfaces using reductive amination chemistry. The resulting PLNPs were incorporated in an LFA to concurrently detect two independent model analytes, prostate-specific antigen (PSA) and human chorionic gonadotropin (hCG). The multicolor-multiplex PLNP-based assays were finally imaged using a smartphone-based imaging system with excellent detection limits (0.1 ng mL-1 of PSA and 1 ng mL-1 of hCG) that are competitive with commercially available LFAs.
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Affiliation(s)
| | - Erin Finley
- Department of Chemistry, University of Houston, Houston, Texas 77204, USA
| | - Binh Vu
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, USA
| | - Katerina Kourentzi
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, USA
| | - Richard C Willson
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, USA
- Department of Biology and Biochemistry, University of Houston, Houston, Texas 77204, USA
- Escuela de Medicina y Ciencias de Salud, Tecnológico de Monterrey, Monterrey, Nuevo León 64710, Mexico
| | - Jakoah Brgoch
- Department of Chemistry, University of Houston, Houston, Texas 77204, USA
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33
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Sun X, Fei R, Zhang L, Huo B, Wang Y, Peng Y, Ning B, He J, Gao Z, Hu Y. Bio-barcode triggered isothermal amplification in a fluorometric competitive immunoassay for the phytotoxin abrin. Mikrochim Acta 2020; 187:127. [PMID: 31938848 DOI: 10.1007/s00604-019-3961-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 09/19/2019] [Indexed: 02/01/2023]
Abstract
Abrin is one of the most toxic phytotoxins to date, and is a potential biological warfare agent. A bio-barcode triggered isothermal amplification for fluorometric determination of abrin is described. Free abrin competes with abrin-coated magnetic microparticles (MMP) probes to bind to gold nanoparticle (AuNP) probes modified with abrin antibody and bio-barcoded DNA. Abundant barcodes are released from the MMP-AuNP complex via dithiothreitol treatment. This triggers an exponential amplification reaction (EXPAR) that is monitored by real-time fluorometry, at typical excitation/emission wavelengths of 495/520 nm. The EXPAR assay is easily operated, highly sensitive and specific. It was used to quantify abrin in spiked commercial samples. The detection limit (at S/N = 3; for n = 6) is 5.6 pg·mL-1 which is considerably lower than previous reports. This assay provides a universal sensing platform and has great potential for determination of various analytes, including small molecules, proteins, DNA, and cells. Graphical abstract Schematic representation of the bio-barcode triggered exponential amplification reaction (EXPAR) for a fluorometric competitive immunoassay for abrin. The limit of detection is 5.6 pg mL-1 with a large dynamic range from 10 pg mL-1 to 1 µg mL-1.
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Affiliation(s)
- Xuan Sun
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ruihua Fei
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Lu Zhang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Bingyang Huo
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin, 300050, China
| | - Yu Wang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin, 300050, China
| | - Yuan Peng
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin, 300050, China
| | - Baoan Ning
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin, 300050, China
| | - Jing He
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhixian Gao
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin Institute of Environment and Operational Medicine, Tianjin, 300050, China.
| | - Yonggang Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China.
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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Huang X, Zhou Y, Ding L, Yu G, Leng Y, Lai W, Xiong Y, Chen X. Supramolecular Recognition-Mediated Layer-by-Layer Self-Assembled Gold Nanoparticles for Customized Sensitivity in Paper-Based Strip Nanobiosensors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1903861. [PMID: 31736250 DOI: 10.1002/smll.201903861] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/25/2019] [Indexed: 05/24/2023]
Abstract
Herein, a smart supramolecular self-assembly-mediated signal amplification strategy is developed on a paper-based nanobiosensor to achieve the sensitive and customized detection of biomarkers. The host-guest recognition between β-cyclodextrin-coated gold nanoparticles (AuNPs) and 1-adamantane acetic acid or tetrakis(4-carboxyphenyl)porphyrin is designed and applied to the layer-by-layer self-assembly of AuNPs at the test area of the strip. Thus, the amplified platform exhibits a high sensitivity with a detection limit at subattogram levels (approximately dozens of molecules per strip) and a wide dynamic range of concentration over seven orders of magnitude. The applicability and universality of this sensitive platform are demonstrated in clinically significant ranges to measure carcinoembryonic antigen and HIV-1 capsid p24 antigen in spiked serum and clinical samples. The customized biomarker detection ability for the on-demand needs of clinicians is further verified through cycle incubation-mediated controllable self-assembly. Collectively, the supramolecular self-assembly amplification method is suitable as a universal point-of-care diagnostic tool and can be readily adapted as a platform technology for the sensitive assay of many different target analytes.
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Affiliation(s)
- Xiaolin Huang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, 330047, P. R. China
| | - Yaofeng Zhou
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, 330047, P. R. China
| | - Lu Ding
- Hypertension Research Institute of Jiangxi Province, Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, P. R. China
| | - Guocan Yu
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Yuankui Leng
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, 330047, P. R. China
| | - Weihua Lai
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, 330047, P. R. China
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Nanchang University, Nanchang, 330047, P. R. China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
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35
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Soum V, Park S, Brilian AI, Kwon OS, Shin K. Programmable Paper-Based Microfluidic Devices for Biomarker Detections. MICROMACHINES 2019; 10:E516. [PMID: 31382502 PMCID: PMC6722603 DOI: 10.3390/mi10080516] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 07/29/2019] [Accepted: 08/01/2019] [Indexed: 12/13/2022]
Abstract
Recent advanced paper-based microfluidic devices provide an alternative technology for the detection of biomarkers by using affordable and portable devices for point-of-care testing (POCT). Programmable paper-based microfluidic devices enable a wide range of biomarker detection with high sensitivity and automation for single- and multi-step assays because they provide better control for manipulating fluid samples. In this review, we examine the advances in programmable microfluidics, i.e., paper-based continuous-flow microfluidic (p-CMF) devices and paper-based digital microfluidic (p-DMF) devices, for biomarker detection. First, we discuss the methods used to fabricate these two types of paper-based microfluidic devices and the strategies for programming fluid delivery and for droplet manipulation. Next, we discuss the use of these programmable paper-based devices for the single- and multi-step detection of biomarkers. Finally, we present the current limitations of paper-based microfluidics for biomarker detection and the outlook for their development.
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Affiliation(s)
- Veasna Soum
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Sooyong Park
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Albertus Ivan Brilian
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Oh-Sun Kwon
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Kwanwoo Shin
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea.
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36
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Real-time and in-situ monitoring of Abrin induced cell apoptosis by using SERS spectroscopy. Talanta 2019; 195:8-16. [DOI: 10.1016/j.talanta.2018.11.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/27/2018] [Accepted: 11/05/2018] [Indexed: 02/07/2023]
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37
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38
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Hristov DR, Rodriguez-Quijada C, Gomez-Marquez J, Hamad-Schifferli K. Designing Paper-Based Immunoassays for Biomedical Applications. SENSORS (BASEL, SWITZERLAND) 2019; 19:E554. [PMID: 30699964 PMCID: PMC6387326 DOI: 10.3390/s19030554] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 01/14/2019] [Accepted: 01/21/2019] [Indexed: 12/18/2022]
Abstract
Paper-based sensors and assays have been highly attractive for numerous biological applications, including rapid diagnostics and assays for disease detection, food safety, and clinical care. In particular, the paper immunoassay has helped drive many applications in global health due to its low cost and simplicity of operation. This review is aimed at examining the fundamentals of the technology, as well as different implementations of paper-based assays and discuss novel strategies for improving their sensitivity, performance, or enabling new capabilities. These innovations can be categorized into using unique nanoparticle materials and structures for detection via different techniques, novel biological species for recognizing biomarkers, or innovative device design and/or architecture.
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Affiliation(s)
- Delyan R Hristov
- Department of Engineering, University of Massachusetts, Boston, MA 02125, USA.
| | | | - Jose Gomez-Marquez
- Little Devices Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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Razo SC, Panferova NA, Panferov VG, Safenkova IV, Drenova NV, Varitsev YA, Zherdev AV, Pakina EN, Dzantiev BB. Enlargement of Gold Nanoparticles for Sensitive Immunochromatographic Diagnostics of Potato Brown Rot. SENSORS (BASEL, SWITZERLAND) 2019; 19:E153. [PMID: 30621133 PMCID: PMC6338966 DOI: 10.3390/s19010153] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 12/19/2018] [Accepted: 12/28/2018] [Indexed: 12/14/2022]
Abstract
Lateral flow immunoassay (LFIA) is a convenient tool for rapid field-based control of various bacterial targets. However, for many applications, the detection limits obtained by LFIA are not sufficient. In this paper, we propose enlarging gold nanoparticles' (GNPs) size to develop a sensitive lateral flow immunoassay to detect Ralstonia solanacearum. This bacterium is a quarantine organism that causes potato brown rot. We fabricated lateral flow test strips using gold nanoparticles (17.4 ± 1.0 nm) as a label and their conjugates with antibodies specific to R. solanacearum. We proposed a signal enhancement in the test strips' test zone due to the tetrachloroauric (III) anion reduction on the GNP surface, and the increase in size of the gold nanoparticles on the test strips was approximately up to 100 nm, as confirmed by scanning electron microscopy. Overall, the gold enhancement approach decreased the detection limit of R. solanacearum by 33 times, to as low as 3 × 10⁴ cells∙mL⁻1 in the potato tuber extract. The achieved detection limit allows the diagnosis of latent infection in potato tubers. The developed approach based on gold enhancement does not complicate analyses and requires only 3 min. The developed assay together with the sample preparation and gold enlargement requires 15 min. Thus, the developed approach is promising for the development of lateral flow test strips and their subsequent introduction into diagnostic practice.
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Affiliation(s)
- Shyatesa C Razo
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
- Agricultural-Technological Institute, RUDN University, Miklukho-Maklaya Street 8/2, 117198 Moscow, Russia.
| | - Natalia A Panferova
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
| | - Vasily G Panferov
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
| | - Irina V Safenkova
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
| | - Natalia V Drenova
- All-Russian Plant Quarantine Centre, Pogranichnaya Street 32, Bykovo-2, Moscow Region, 140150 Moscow, Russia.
| | - Yuri A Varitsev
- A.G. Lorch All-Russian Potato Research Institute, Lorch Street 23, Kraskovo, Moscow Region, 140051 Moscow, Russia.
| | - Anatoly V Zherdev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
| | - Elena N Pakina
- Agricultural-Technological Institute, RUDN University, Miklukho-Maklaya Street 8/2, 117198 Moscow, Russia.
| | - Boris B Dzantiev
- A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
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40
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Moumita M, Shankar K, Abhiman P, Shamasundar B. Development of a sandwich vertical flow immunogold assay for rapid detection of oxytetracycline residue in fish tissues. Food Chem 2019; 270:585-592. [DOI: 10.1016/j.foodchem.2018.07.124] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 03/16/2018] [Accepted: 07/18/2018] [Indexed: 12/27/2022]
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Bhowmick S, Wang J. Microchip Cytometry for Multiplexed Single-Cell Protein Detection in a Low-Resource Setting toward Point of Care Diagnosis. ACS Sens 2018; 3:2604-2612. [PMID: 30421607 DOI: 10.1021/acssensors.8b01015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Multiplex measurement of protein expression with the single-cell resolution has been challenging. Although a few conventional approaches including flow cytometry and immunofluorescence-based methods have been developed to detect proteins in individual cells, they are either dependent on bulky instrument or not multiplexed and high-throughput enough. Here we present a portable single-cell analysis system that is operable in a resource-limited environment. A stand-sit microchip housed in a clamp enables simple and instrument-free operation of all necessary steps, and the detection based on immunogold enhancement exonerates the reliance on fluorescence optics and electronics. The quantified sensitivity was found comparable to the conventional fluorescence approaches. We used this system to analyze five immune effector proteins and found the system is equally effective to detect those proteins in hundreds of single cells. Significant increase of cytokine protein production by THP1 monocytes was observed upon stimulation by lipopolysaccharide. Further study showed that a low-end imaging setup with low resolution can also detect signals without much loss of sensitivity. Taken together, this portable multiplex single-cell system may find broad biomedical applications in a field setting.
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Affiliation(s)
- Sirsendu Bhowmick
- Multiplex Biotechnology Laboratory, Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222, United States
| | - Jun Wang
- Multiplex Biotechnology Laboratory, Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222, United States
- Cancer Research Center, University at Albany, State University of New York, Rensselaer, New York 12144, United States
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42
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Zhao S, Wang S, Zhang S, Liu J, Dong Y. State of the art: Lateral flow assay (LFA) biosensor for on-site rapid detection. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.12.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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43
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Post-assay growth of gold nanoparticles as a tool for highly sensitive lateral flow immunoassay. Application to the detection of potato virus X. Mikrochim Acta 2018; 185:506. [PMID: 30328535 DOI: 10.1007/s00604-018-3052-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 10/07/2018] [Indexed: 01/01/2023]
Abstract
This article demonstrates a new kind of a highly sensitive lateral flow immunoassay (LFIA). It is based on the enlargement of the size of gold nanoparticles (GNPs) directly on the test strip after a conventional LFIA. Particle size enlargement is accomplished through the catalytic reduction of HAuCl4 in the presence of H2O2 and through the accumulation of additional gold on the surface of the GNPs. To attain maximal enhancement of the coloration of the zone in the test strip and to achieve a minimal background, the concentration of precursors, the pH value, and the incubation time were optimized. GNPs on the test strip are enlarged from 20 to 350 nm after a 1-min treatment at room temperature. The economically important and widespread phytopathogen potato virus X (PVX) was used as the target analyte. The use of the GNP enlargement method results in a 240-fold reduction in the limit of the detection of PVX, which can be as low as 17 pg·mL-1. The total duration of the assay, including virus extraction from the potato leaves, lateral flow, and the enhancement process, is only 12 min. The diagnostic efficiency of the technique was confirmed by its application to the analysis of potato leave samples. No false positives or false negatives were found. The technique does not depend on specific features of the target analyte, and it is conceivably applicable to numerous GNP-based LFIAs for important analytes. Graphical abstract An enlargement solution (containing HAuCl4 and H2O2) was dripped on the strip after common lateral flow immunoassay. Gold nanoparticles on the strip (20 nm) catalyze gold reduction and the formation of larger particles (up to 350 nm), resulting in a 240-fold lower detection limit within 1 min.
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44
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Yan L, Dou L, Bu T, Huang Q, Wang R, Yang Q, Huang L, Wang J, Zhang D. Highly sensitive furazolidone monitoring in milk by a signal amplified lateral flow assay based on magnetite nanoparticles labeled dual-probe. Food Chem 2018; 261:131-138. [DOI: 10.1016/j.foodchem.2018.04.016] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 11/20/2017] [Accepted: 04/06/2018] [Indexed: 02/09/2023]
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45
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46
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Yin HY, Fang TJ, Li YT, Fung YF, Tsai WC, Dai HY, Wen HW. Rapidly detecting major peanut allergen-Ara h2 in edible oils using a new immunomagnetic nanoparticle-based lateral flow assay. Food Chem 2018; 271:505-515. [PMID: 30236709 DOI: 10.1016/j.foodchem.2018.07.064] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 06/12/2018] [Accepted: 07/11/2018] [Indexed: 12/20/2022]
Abstract
Ara h2 is a major peanut allergen that induces rashes, vomiting, diarrhea, and anaphylactic shock. Since peanut is a major source in producing edible oils globally, Ara h2 residues can be present in various edible oils. In this work, an immunomagnetic nanoparticle-based lateral flow assay for identifying Ara h2 in edible oils is developed. This assay exhibits high sensitivity with a visual detection limit of 0.1 mg/kg Ara h2 in oil, and favorable specificity in differentiating peanut from seeds and nuts. The calculated CV values of intra- and inter-assay were 6.73-10.21% and 4.75-8.57%, respectively, indicating high reproducibility. In an analysis of 26 oil products, Ara h2 was detected in two peanut oils as 0.122 ± 0.026 mg/kg and 0.247 ± 0.027 mg/kg. The entire method takes 5 h, including a 3.5-h sample preparation. Hence, this method has the potential to be an effective way to screen edible oils for Ara h2.
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Affiliation(s)
- Hsin-Yi Yin
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, ROC
| | - Tony J Fang
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, ROC; Food Industry Research and Development Institute, Hsinchu, Taiwan, ROC.
| | - Yi-Ting Li
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, ROC
| | - Yang-Fan Fung
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, ROC
| | - Wen-Che Tsai
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, ROC
| | - Hong-Yu Dai
- Crop Science Division and Guansi Experiment Station, Taiwan Agricultural Research Institute, Council of Agriculture, Executive Yuan, Taichung, Taiwan, ROC.
| | - Hsiao-Wei Wen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, ROC.
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47
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Ye H, Xia X. Enhancing the sensitivity of colorimetric lateral flow assay (CLFA) through signal amplification techniques. J Mater Chem B 2018; 6:7102-7111. [PMID: 32254626 DOI: 10.1039/c8tb01603h] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Colorimetric lateral flow assay (CLFA) is one of a handful of diagnostic technologies that can be truly taken out of the laboratory for point-of-care testing without the need for any equipment and skilled personnel. Despite its simplicity and practicality, it remains a grand challenge to substantially enhance the detection sensitivity of CLFA without adding complexity. Such a limitation in sensitivity inhibits many critical applications such as early detection of significant cancers and severe infectious diseases. With the rapid development of materials science and nanotechnology, signal amplification techniques that hold great potential to break through the existing detection limit barrier of CLFA have been developed in recent years. This article specifically highlights these emerging techniques for CLFA development. The rationale behind and advantages and limitations of each technique are discussed. Perspectives on future research directions in this niche and important field are provided.
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Affiliation(s)
- Haihang Ye
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, USA.
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48
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Deng J, Yang M, Wu J, Zhang W, Jiang X. A Self-Contained Chemiluminescent Lateral Flow Assay for Point-of-Care Testing. Anal Chem 2018; 90:9132-9137. [PMID: 30004664 DOI: 10.1021/acs.analchem.8b01543] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Immunoassays whose readouts rely on chemiluminescence are increasingly useful for a broad range of analytical applications, but they are rarely made into point-of-care (POC) format because of the complex reagents required (some reagents have to be stored in low temperatures, and some reagents have to be freshly made right before the assay). This study reports a self-contained chemiluminescent lateral flow assay (CLFA), which prestores all necessary reagents. This CLFA contains three parts: the normal lateral flow assay (LFA) strip, the chemiluminescence substrate pad, and the polycarbonate (PC) holder. On the LFA strip, we simultaneously labeled horseradish peroxidase (HRP) and antibody on the gold nanoparticles (AuNPs) for the conjugate pad. For the substrate pad, we used sodium perborate as the oxidant and lyophilized the chemiluminescence substrate on the glass fiber, which allows long-term storage. After the transfer of substrate from the substrate pad to the nitrocellulose (NC) membrane, we captured the chemiluminescence signal for the quantification of the targets. The HRP on the AuNPs can amplify the chemiluminescence signal efficiently. We used this CLFA system to detect both macromolecules and small molecules successfully. This self-contained and easily processable device is exceedingly appropriate for rapid detection and is a convenient platform for POC testing.
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Affiliation(s)
- Jinqi Deng
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , No. 11 Zhongguancun Beiyitiao , Beijing 100190 , China.,Sino-Danish College , Sino-Danish Center for Education and Research, University of Chinese Academy of Sciences , Beijing 100049 , China.,Department of Pharmacy , University of Copenhagen , Universitetsparken 2 , DK-2100 Copenhagen , Denmark
| | - Mingzhu Yang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , No. 11 Zhongguancun Beiyitiao , Beijing 100190 , China
| | - Jing Wu
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , No. 11 Zhongguancun Beiyitiao , Beijing 100190 , China
| | - Wei Zhang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , No. 11 Zhongguancun Beiyitiao , Beijing 100190 , China.,Sino-Danish College , Sino-Danish Center for Education and Research, University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Xingyu Jiang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , No. 11 Zhongguancun Beiyitiao , Beijing 100190 , China.,Sino-Danish College , Sino-Danish Center for Education and Research, University of Chinese Academy of Sciences , Beijing 100049 , China
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49
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Zhang B, Gao W, Piao J, Xiao Y, Wang B, Peng W, Gong X, Wang Z, Yang H, Chang J. Effective Bioactivity Retention of Low-Concentration Antibodies on HFBI-Modified Fluorescence ICTS for Sensitive and Rapid Detection of PSA. ACS APPLIED MATERIALS & INTERFACES 2018; 10:14549-14558. [PMID: 29648780 DOI: 10.1021/acsami.8b02945] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Nowadays, increasing analytical sensitivity is still a big challenge in constructing membrane-based fluorescence immunochromatography test strips (FICTS). However, the bioactivity of antibody (Ab) immobilized on the test line (T line) of porous nitrocellulose membrane (PNM), which directly influences the analytical sensitivity, is less studied. In this work, a novel amphiphilic hydrophobin (HFBI) protein was introduced to modify the T line to effectively retain the Abs' bioactivity. The results indicated that HFBI could self-assemble on the PNM and immobilize the Abs in the "stand-up" orientation. Compared with the conventional FICTS, the HFBI-modified FICTS with only 0.2 mg/mL of monoclonal Abs on T line enable more accurate quantitative detection and better sensitivity (0.06 ng/mL for prostate specific antigen), which is more than 2 orders of magnitude lower than that of the conventional FICTS with the same concentration of monoclonal Abs on T line. Furthermore, the accuracy of this HFBI-modified FICTS was investigated by testing 150 clinical serum samples and the detection results were coincident with those by electrochemiluminescence immunoassay. Our results provide a novel and promising strategy of Ab immobilization on FICTS for near-patient and point-of-care application.
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Affiliation(s)
- Bo Zhang
- School of Life Sciences, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin University , Tianjin 300072 , China
| | - Weichen Gao
- School of Life Sciences, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin University , Tianjin 300072 , China
| | - Jiafang Piao
- School of Life Sciences, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin University , Tianjin 300072 , China
| | - Yunjie Xiao
- School of Life Sciences, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin University , Tianjin 300072 , China
| | - Bin Wang
- School of Life Sciences, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin University , Tianjin 300072 , China
| | - Weipan Peng
- School of Life Sciences, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin University , Tianjin 300072 , China
| | - Xiaoqun Gong
- School of Life Sciences, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin University , Tianjin 300072 , China
- State Key Laboratory of Chemo/Biosensing and Chemometrics , Hunan University , Changsha 410082 , China
| | - Zefang Wang
- School of Life Sciences, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin University , Tianjin 300072 , China
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy , Nankai University , Tianjin 300071 , China
- Tianjin International Joint Academy of Biotechnology and Medicine , Tianjin 300457 , China
| | - Haitao Yang
- Tianjin International Joint Academy of Biotechnology and Medicine , Tianjin 300457 , China
| | - Jin Chang
- School of Life Sciences, Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin University , Tianjin 300072 , China
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50
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Huang Q, Bu T, Zhang W, Yan L, Zhang M, Yang Q, Huang L, Yang B, Hu N, Suo Y, Wang J, Zhang D. An improved clenbuterol detection by immunochromatographic assay with bacteria@Au composite as signal amplifier. Food Chem 2018; 262:48-55. [PMID: 29751920 DOI: 10.1016/j.foodchem.2018.04.085] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 04/04/2018] [Accepted: 04/21/2018] [Indexed: 02/04/2023]
Abstract
Immunochromatographic assays (ICAs) are most frequently used for on-site rapid screening of clenbuterol. To improve sensitivity, a novel probe with bacteria as signal carriers was developed. Bacteria can load a great deal of gold nanoparticles (AuNPs) on their surface, meaning much fewer antibodies are needed to produce clearly visible results, although low concentrations of antibody could also trigger fierce competition between free analyte and the immobilized antigen. Thus, a limited number of antibodies was key to significantly improved sensitivity. Analytical conditions, including bacterial species, coupling method, and concentration, were optimized. The visual detection limit (VDL) for clenbuterol was 0.1 ng/mL, a 20-fold improvement in sensitivity compared with traditional strips. This work has opened up a new route for signal amplification and improved performance of ICAs. Furthermore, inactivated bacteria could also be environment-friendly and robust signal carriers for other biosensors.
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Affiliation(s)
- Qiong Huang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Tong Bu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Wentao Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Lingzhi Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Mengyue Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Qingfeng Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Lunjie Huang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Baowei Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Na Hu
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Qinghai 810008, China
| | - Yourui Suo
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Qinghai 810008, China
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Daohong Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
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