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Pan Q, Wu W, Liao S, Wang S, Zhao C, Li C, Wu P. Comparison of the detection performance of two different one-step-combined test strips with fluorescent microspheres or colored microspheres as tracers for influenza A and B viruses. Virol J 2019; 16:91. [PMID: 31324259 PMCID: PMC6642511 DOI: 10.1186/s12985-019-1190-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 06/12/2019] [Indexed: 11/25/2022] Open
Abstract
Background Influenza A and B viruses mainly cause respiratory infectious disease. Till now, few tests are able to simultaneously detect both, especially in primary medical establishments. Methods This study was designed to compare the performance of two different one-step-combined test strips for the detection of influenza A and B: one strip with fluorescent microspheres for tracers (FMT); and the other strip with colored microspheres for tracers (CMT). To test the strips, cultures of influenza A, B, and other pathogenic viruses were used, in addition to 1085 clinical specimens from symptomatic patients with respiratory infections. Real-time RT-PCR was also considered as a reference method used to detect the different results of FMT and CTM. Results Detection thresholds for influenza A and B cultures using serial dilutions revealed that the sensitivity of FMT was higher than that of CMT (both P < 0.05). With the culture mixtures of Coxsackie virus (A16), enteric cytopathic human orphan virus (ECHO type30), enterovirus (EV71), rotavirus (LLR strain), and enteric adenovirus (AdV 41), specificity assessment demonstrated that there was no cross reaction during the usage of the two test strips as shown by the results which were negative. In the detection of influenza A in 1085 clinical specimens, the total coincidence rate was 96.7%, the positive coincidence rate was 97.1%, and the negative coincidence rate was 96.7%. In the case of influenza B detection, the total coincidence rate was 99.1%, the positive coincidence rate was 92.6%, and the negative coincidence rate was 98.5%. In addition, with influenza A or B real-time RT-PCR detection method, the results showed that, for influenza A, 26 of the 33 specimens that negative with CMT but positive with FMT, showed positive results, and none of the 3 specimens that positive with CMT but negative with FMT showed a positive result; For influenza B, 12 of the 15 specimens that negative with CMT but positive with FMT, showed positive results, and none of the 5 specimens that positive with CMT but negative with FMT showed a positive result. Conclusions FMT performed better than CMT in the combined detection of influenza A and B viruses.
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Affiliation(s)
- Qingjun Pan
- Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Weiquan Wu
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Shuzhen Liao
- Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Sijie Wang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Chunfei Zhao
- Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Chen Li
- Department of Clinical Laboratory, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
| | - Ping Wu
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
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Verma SK, Albrecht AK, Siebecke V, Klöck G, Kolesnikova TA, Springer S. Comparative validation of a microcapsule-based immunoassay for the detection of proteins and nucleic acids. PLoS One 2018; 13:e0201009. [PMID: 30028867 PMCID: PMC6054379 DOI: 10.1371/journal.pone.0201009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 07/06/2018] [Indexed: 01/12/2023] Open
Abstract
To detect and study diseases, research and clinical laboratories must quantify specific biomarkers in the plasma and urine of patients with precision, sensitivity, and cost-effectiveness. Newly developed techniques, such as particle-based immunoassays, must be validated in these terms against standard methods such as enzyme-linked immunosorbent assays (ELISAs). Here, we compare the performance of assays that use hollow polyelectrolyte microcapsules with assays based on solid plastic beads, and with standard microplate immunoassays. The polyelectrolyte microcapsules detect the disease biomarker beta-2 microglobulin with a fifty-fold increase in sensitivity than polystyrene (PS) beads. For sequence-specific nucleic acid detection, the oligonucleotide-coated microcapsules exhibit a two-fold lower increase in sensitivity over PS beads. The microcapsules also detect the presence of a monoclonal antibody in hybridoma supernatant at a fifty-six-fold increase in sensitivity compared to a microplate assay. Overall, polyelectrolyte microcapsule-based assays are more sensitive for the detection of protein and nucleic acid analytes than PS beads and microplate assays, and they are viable alternatives as a platform for the rapid quantitative detection of analytes at very low concentrations.
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Affiliation(s)
- Sujit Kumar Verma
- Department of Life Sciences and Chemistry, Jacobs University, Bremen, Germany
| | | | | | - Gerd Klöck
- City University of Applied Sciences, Bremen, Germany
| | | | - Sebastian Springer
- Department of Life Sciences and Chemistry, Jacobs University, Bremen, Germany
- * E-mail:
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Jiang N, Shi L, Lin J, Zhang L, Peng Y, Sheng H, Wu P, Pan Q. Comparison of two different combined test strips with fluorescent microspheres or colored microspheres as tracers for rotavirus and adenovirus detection. Virol J 2018. [PMID: 29534739 PMCID: PMC5851252 DOI: 10.1186/s12985-018-0951-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background Rotavirus (RV) and enteric adenovirus (AdV) mainly cause infantile infectious gastroenteritis. Several separate test methods for the detection of RV or AdV are currently available, but few tests are able to simultaneously detect both RV and AdV viruses, especially in primary medical institutions. Methods The present study was mainly designed to compare the performance of two combined test strips for the detection of RV and AdV: a rotavirus–adenovirus strip with fluorescent microspheres for tracers (FMT); and the CerTest rotavirus–adenovirus blister strip with colored microspheres for tracers (CMT). To test the strips cultures of RV, AdV and from other enteric pathogens were used, in addition to 350 stool specimens from 45 symptomatic patients with gastrointestinal infections. Results Detection thresholds for RV and AdV cultures using serial dilutions showed that the sensitivity of FMT was significantly higher than that of CMT (both P < 0.05). Specificity evaluation demonstrated that with culture mixtures of Coxsackie (A16), ECHO (type30), and entero- (EV71) viruses there was no detection of cross reaction using the two test strips, i.e., all the results were negative. With regard to the detection of RV in 350 clinical specimens, the total coincidence rate was 92.9%, the positive coincidence rate was 98.2%, and the negative coincidence rate was 90.8%. With regard to AdV detection, the total coincidence rate was 95.4%, the positive coincidence rate was 95.2%, and the negative coincidence rate was 95.5%. Conclusions FMT performed better than CMT with regard to the combined detection of RV and AdV.
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Affiliation(s)
- Na Jiang
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Lei Shi
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jieping Lin
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Lifang Zhang
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yanxia Peng
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Huiying Sheng
- Division of Endocrinology and Metabolism, Guangzhou Women and Children's Medical Centre, Guangzhou, Guangdong, China
| | - Ping Wu
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
| | - Qingjun Pan
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
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Ha Y, Ko S, Kim I, Huang Y, Mohanty K, Huh C, Maynard JA. Recent Advances Incorporating Superparamagnetic Nanoparticles into Immunoassays. ACS APPLIED NANO MATERIALS 2018; 1:512-521. [PMID: 29911680 PMCID: PMC5999228 DOI: 10.1021/acsanm.7b00025] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 01/31/2018] [Indexed: 05/09/2023]
Abstract
Superparamagnetic nanoparticles (SPMNPs) have attracted interest for various biomedical applications due to their unique magnetic behavior, excellent biocompatibility, easy surface modification, and low cost. Their unique magnetic properties, superparamagnetism, and magnetophoretic mobility have led to their inclusion in immunoassays to enhance biosensor sensitivity and allow for rapid detection of various analytes. In this review, we describe SPMNP characteristics valuable for incorporation into biosensors, including the use of SPMNPs to increase detection capabilities of surface plasmon resonance and giant magneto-resistive biosensors. The current status of SPMNP-based immunoassays to improve the sensitivity of rapid diagnostic tests is reviewed, and suggested strategies for the successful adoption of SPMNPs for immunoassays are presented.
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Affiliation(s)
- Yeonjeong Ha
- Department
of Chemical Engineering and Petroleum and Geosystems Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- E-mail: . (J.A.M.)
| | - Saebom Ko
- Department
of Chemical Engineering and Petroleum and Geosystems Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Ijung Kim
- Department
of Civil and Environmental Engineering, Western New England University, Springfield, Massachusetts 01119, United States
| | - Yimin Huang
- Department
of Chemical Engineering and Petroleum and Geosystems Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Kishore Mohanty
- Department
of Chemical Engineering and Petroleum and Geosystems Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Chun Huh
- Department
of Chemical Engineering and Petroleum and Geosystems Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jennifer A. Maynard
- Department
of Chemical Engineering and Petroleum and Geosystems Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- E-mail: . (Y.-J.H.)
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Kim S, Han S, Lee J. Asymmetric bead aggregation for microfluidic immunodetection. LAB ON A CHIP 2017; 17:2095-2103. [PMID: 28534926 DOI: 10.1039/c7lc00138j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report an asymmetric immunoaggregation assay for rapid, label-free, and sub-picomolar protein detection. Asymmetric immunoaggregated beads (AIBs) are formed when binding occurs between 1 μm magnetic (MG) and 2.8 μm polystyrene (PS) beads coated with specific antibodies for a target antigen. Detection of such aggregation is achieved by optical monitoring of AIBs in a flow under an external magnetic field. AIBs are attracted to the upper surface of the microchannel by a magnetic field and made to slide along the surface by a flow drag force. This sliding behavior is in contrast with other particles such as MG and PS beads; while attracted MG beads hardly slide due to their small size, PS beads quickly move with the flow due to the lack of magnetism. Sliding AIBs are optically monitored in a designated sensing area in the microchannel. A custom-built program code is used for counting the AIBs and further analysis of parameters such as velocity and number distributions that are correlated with target concentrations. The detection range from 54 pg mL-1 to 54 ng mL-1 is demonstrated for the influenza type A H1N1 nucleoprotein (NP). This immunosensing system is simple, highly sensitive, and capable of quantitative detection of antigens in a single test without fluorescent or enzyme labeling, hence is useful for the rapid detection of biomarkers in clinical and biomedical applications.
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Affiliation(s)
- Sunggu Kim
- School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 08826, South Korea.
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Md Ali MA, Ostrikov K(K, Khalid FA, Majlis BY, Kayani AA. Active bioparticle manipulation in microfluidic systems. RSC Adv 2016. [DOI: 10.1039/c6ra20080j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The motion of bioparticles in a microfluidic environment can be actively controlled using several tuneable mechanisms, including hydrodynamic, electrophoresis, dielectrophoresis, magnetophoresis, acoustophoresis, thermophoresis and optical forces.
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Affiliation(s)
- Mohd Anuar Md Ali
- Institute of Microengineering and Nanoelectronics
- Universiti Kebangsaan Malaysia
- Bangi
- Malaysia
| | - Kostya (Ken) Ostrikov
- School of Chemistry, Physics, and Mechanical Engineering
- Queensland University of Technology
- Brisbane
- Australia
- CSIRO-QUT Joint Sustainable Processes and Devices Laboratory
| | - Fararishah Abdul Khalid
- Faculty of Technology Management and Technopreneurship
- Universiti Teknikal Malaysia Melaka
- Malaysia
| | - Burhanuddin Y. Majlis
- Institute of Microengineering and Nanoelectronics
- Universiti Kebangsaan Malaysia
- Bangi
- Malaysia
| | - Aminuddin A. Kayani
- Institute of Microengineering and Nanoelectronics
- Universiti Kebangsaan Malaysia
- Bangi
- Malaysia
- Center for Advanced Materials and Green Technology
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Abstract
We report an isomagnetophoretic immunoassay capable of detecting an attomolar level of proteins and adjusting the dynamic range of target analytes. Here, the magnetic nanoparticles are used as labels on microbeads in sandwich-type immunoassay, detecting the amount of bound analytes by isomagnetophoretic focusing the solid-support microbeads under the magnetic susceptibility gradient and magnetic field in a microchannel. For the practical purpose, this platform was applied to detect three types of breast cancer biomarkers.
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Affiliation(s)
- Young Ki Hahn
- Department of Bio and Brain Engineering, College of Life Science and Bioengineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
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Suwa M, Watarai H. Magnetoanalysis of micro/nanoparticles: A review. Anal Chim Acta 2011; 690:137-47. [DOI: 10.1016/j.aca.2011.02.019] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2010] [Revised: 02/07/2011] [Accepted: 02/07/2011] [Indexed: 01/31/2023]
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Kim JS, Ligler FS. Utilization of microparticles in next-generation assays for microflow cytometers. Anal Bioanal Chem 2010; 398:2373-82. [PMID: 20526882 PMCID: PMC2965807 DOI: 10.1007/s00216-010-3848-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Revised: 05/11/2010] [Accepted: 05/13/2010] [Indexed: 11/26/2022]
Abstract
Micron-sized particles have primarily been used in microfabricated flow cytometers for calibration purposes and proof-of-concept experiments. With increasing frequency, microparticles are serving as a platform for assays measured in these small analytical devices. Light scattering has been used to measure the agglomeration of antibody-coated particles in the presence of an antigen. Impedance detection is another technology being integrated into microflow cytometers for microparticle-based assays. Fluorescence is the most popular detection method in flow cytometry, enabling highly sensitive multiplexed assays. Finally, magnetic particles have also been used to measure antigen levels using a magnetophoretic micro-device. We review the progress of microparticle-based assays in microflow cytometry in terms of the advantages and limitations of each approach.
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Affiliation(s)
- Jason S. Kim
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC 20375-5348, USA
| | - Frances S. Ligler
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC 20375-5348, USA
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