1
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Kim JH, Kim JH, Jeong HS, Lee SJ, Park JP, Choi CH. Color-encoded multicompartmental hydrogel microspheres for multiplexed bioassays. Talanta 2024; 279:126571. [PMID: 39029178 DOI: 10.1016/j.talanta.2024.126571] [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: 05/01/2024] [Revised: 07/10/2024] [Accepted: 07/13/2024] [Indexed: 07/21/2024]
Abstract
We develop color-encoded multicompartmental hydrogel (MH) microspheres tailored for multiplexed bioassays using a drop-based microfluidic approach. Our method involves the creation of triple emulsion drops that feature thin sacrificial oil layers separating two prepolymer phases. This configuration leads to the formation of poly(ethylene glycol) (PEG) multi-compartmental core-shell microspheres through photopolymerization, followed by the removal of the thin oil layers. The core compartments stably incorporate pigments, ensuring their retention within the hydrogel network without leakage, which facilitates reliable color encoding across varying spatial positions. Additionally, we introduce small molecule fluorescent labeling into the chemically functionalized shell compartments, achieving consistent distribution of functional components without the core's contamination. Importantly, our integrated one-pot conjugation of these color-encoded microspheres with affinity peptides enables the highly sensitive and selective detection of influenza virus antigens using a fluorescence bioassay, resulting in an especially low detection limit of 0.18 nM and 0.66 nM for influenza virus H1N1 and H5N1 antigens, respectively. This approach not only highlights the potential of our microspheres in clinical diagnostics but also paves the way for their application in a wide range of multiplexed assays.
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Affiliation(s)
- Ji-Hyeon Kim
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Ji Hong Kim
- Department of Food Science and Technology, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Hye-Seon Jeong
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Sei-Jung Lee
- Major of Human Bio-convergence, Division of Smart Healthcare, Pukyong National University, Busan, 48513, Republic of Korea
| | - Jong Pil Park
- Department of Food Science and Technology, Chung-Ang University, Anseong, 17546, Republic of Korea.
| | - Chang-Hyung Choi
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
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2
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Tang WS, Zhang B, Xu LD, Bao N, Zhang Q, Ding SN. CdSe/ZnS quantum dot-encoded maleic anhydride-grafted PLA microspheres prepared through membrane emulsification for multiplexed immunoassays of tumor markers. Analyst 2022; 147:1873-1880. [PMID: 35420086 DOI: 10.1039/d2an00350c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Early diagnosis of tumor markers is of great importance for the successful treatment of cancer. As a high-throughput and high-sensitivity detection technology, liquid suspension biochips based on quantum dot (QD) encoded microspheres have been widely used in the immunodetection of tumor markers. In this work, maleic anhydride grafted PLA (PLA-MA) microspheres based on quantum dot encoding were used as carriers for liquid phase suspension biochips for the immunoassay of tumor markers. PLA-MA fluorescent beads are prepared by embedding CdSe/ZnS quantum dots in PLA-MA using Shirasu porous glass (SPG) membrane emulsification technology, which has high fluorescence intensity, good stability, and good dispersion. Fluorescent immunoassays on dipsticks found that PLA-MA microspheres have high biological activity and good stability, which is conducive to immunoassays. Based on this, using the characteristics of CdSe/ZnS quantum dots and flow cytometry, monochromatic and two-color coding methods were developed, and 9 distinguishable coding beads were prepared. The results showed that PLA-MA fluorescent microspheres exhibited good biocompatibility, stable coding signals, low background noise, and low detection limits when performing quaternary immunoassays on tumor markers CA125, CA199, CA724, and CEA by CdSe/ZnS QD-encoded PLA-MA microsphere binding flow cytometry.
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Affiliation(s)
- Wan-Sheng Tang
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Bo Zhang
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Lai-Di Xu
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Ning Bao
- School of Public Health, Nantong University, 226019 Nantong, Jiangsu, China
| | - Qing Zhang
- Chinese Academy of Inspection and Quarantine, Beijing, China
| | - Shou-Nian Ding
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
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3
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Ji DD, Wu MX, Ding SN. Photonic crystal barcodes assembled from dendritic silica nanoparticles for the multiplex immunoassays of ovarian cancer biomarkers. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:298-305. [PMID: 34985054 DOI: 10.1039/d1ay01658j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The combined detection of CA125, CEA and AFP is of great significance in the diagnosis of ovarian cancer. Photonic crystal (PhC) barcodes have apparent advantages in multiplex immunoassays of ovarian cancer markers. In this paper, a novel PhC barcode was assembled from dendritic silica nanoparticles (dSiO2) for multiplex detection of ovarian cancer biomarkers. The interconnected macroporous structure of the dSiO2 PhC beads and the open porous topography of dendritic silica particles could increase the surface area to volume ratio for antibody immobilization. We simultaneously detected multiple ovarian cancer markers in one test tube using the sandwich immunization method by utilizing dSiO2 PhC beads as a barcode and CdTe QDs as a detection signal. The detection limits of the three ovarian cancer markers, AFP, CEA and CA125, were 0.52 ng mL-1, 0.64 ng mL-1 and 0.79 U mL-1, respectively (the signal-to-noise ratio was 3). Compared with the classic silica colloidal crystal bead (SCCB) suspension array, the sensitivity of the dSiO2 PhC bead suspension array was increased. In addition, the results showed that this barcode suspension array had acceptable accuracy and good reproducibility.
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Affiliation(s)
- Dan-Dan Ji
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Mei-Xia Wu
- Lianshui People's Hospital, Jiangsu 223400, China
| | - Shou-Nian Ding
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
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4
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Kartikasari AER, Huertas CS, Mitchell A, Plebanski M. Tumor-Induced Inflammatory Cytokines and the Emerging Diagnostic Devices for Cancer Detection and Prognosis. Front Oncol 2021; 11:692142. [PMID: 34307156 PMCID: PMC8294036 DOI: 10.3389/fonc.2021.692142] [Citation(s) in RCA: 130] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/22/2021] [Indexed: 12/14/2022] Open
Abstract
Chronic inflammation generated by the tumor microenvironment is known to drive cancer initiation, proliferation, progression, metastasis, and therapeutic resistance. The tumor microenvironment promotes the secretion of diverse cytokines, in different types and stages of cancers. These cytokines may inhibit tumor development but alternatively may contribute to chronic inflammation that supports tumor growth in both autocrine and paracrine manners and have been linked to poor cancer outcomes. Such distinct sets of cytokines from the tumor microenvironment can be detected in the circulation and are thus potentially useful as biomarkers to detect cancers, predict disease outcomes and manage therapeutic choices. Indeed, analyses of circulating cytokines in combination with cancer-specific biomarkers have been proposed to simplify and improve cancer detection and prognosis, especially from minimally-invasive liquid biopsies, such as blood. Additionally, the cytokine signaling signatures of the peripheral immune cells, even from patients with localized tumors, are recently found altered in cancer, and may also prove applicable as cancer biomarkers. Here we review cytokines induced by the tumor microenvironment, their roles in various stages of cancer development, and their potential use in diagnostics and prognostics. We further discuss the established and emerging diagnostic approaches that can be used to detect cancers from liquid biopsies, and additionally the technological advancement required for their use in clinical settings.
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Affiliation(s)
- Apriliana E. R. Kartikasari
- Translational Immunology and Nanotechnology Research Program, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Cesar S. Huertas
- Integrated Photonics and Applications Centre (InPAC), School of Engineering, RMIT University, Melbourne, VIC, Australia
| | - Arnan Mitchell
- Integrated Photonics and Applications Centre (InPAC), School of Engineering, RMIT University, Melbourne, VIC, Australia
| | - Magdalena Plebanski
- Translational Immunology and Nanotechnology Research Program, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
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5
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Liu Y, Tan Y, Fu Q, Lin M, He J, He S, Yang M, Chen S, Zhou J. Reciprocating-flowing on-a-chip enables ultra-fast immunobinding for multiplexed rapid ELISA detection of SARS-CoV-2 antibody. Biosens Bioelectron 2020; 176:112920. [PMID: 33418184 PMCID: PMC7834412 DOI: 10.1016/j.bios.2020.112920] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/03/2020] [Accepted: 12/20/2020] [Indexed: 01/09/2023]
Abstract
The worldwide epidemic of novel coronavirus disease (COVID-19) has led to a strong demand for highly efficient immunobinding to achieve rapid and accurate on-site detection of SARS-CoV-2 antibodies. However, hour-scale time-consumption is usually required to ensure the adequacy of immunobinding on expensive large instruments in hospitals, and the common false negative or positive results often occur in rapid on-site immunoassay (e.g. immunochromatography). We solved this dilemma by presenting a reciprocating-flowing immunobinding (RF-immunobinding) strategy. RF-immunobinding enabled the antibodies in fluid contacting with the corresponding immobilized antigens on substrate repeatedly during continuous reciprocating-flowing, to achieve adequate immunobinding within 60 s. This strategy was further developed into an immunoassay method for the serological detection of 13 suspected COVID-19 patients. We obtained a 100% true negative and true positive rate and a limit of quantification (LOQ) of 4.14 pg/mL. Our strategy also can be a potential support for other areas related to immunorecognition, such as proteomics, immunopharmacology and immunohistochemistry. Our strategy that can reach saturation within 60 s may be the fastest immunobinding. Two-step reciprocating-flowing enzyme linked immunosorbent assay needs 5 min only. This ultra-fast immunobinding will speed up many on-site COVID-19 immunoassays. Easy fabrication and pressure control allow portable test in less-developed regions.
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Affiliation(s)
- Yiren Liu
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yayin Tan
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Quanying Fu
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Maoren Lin
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China
| | - Jinxu He
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Suhua He
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China
| | - Mei Yang
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China
| | - Shoudeng Chen
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China.
| | - Jianhua Zhou
- Key Laboratory of Sensing Technology and Biomedical Instruments of Guangdong Province, School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510275, China.
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6
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Robust and multiplexed colorimetric immunoassay for cardiovascular disease biomarkers detection in serum with high specificity. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104334] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Christodoulides N, McRae MP, Simmons GW, Modak SS, McDevitt JT. Sensors that Learn: The Evolution from Taste Fingerprints to Patterns of Early Disease Detection. MICROMACHINES 2019; 10:E251. [PMID: 30995728 PMCID: PMC6523560 DOI: 10.3390/mi10040251] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/22/2019] [Accepted: 04/12/2019] [Indexed: 11/23/2022]
Abstract
The McDevitt group has sustained efforts to develop a programmable sensing platform that offers advanced, multiplexed/multiclass chem-/bio-detection capabilities. This scalable chip-based platform has been optimized to service real-world biological specimens and validated for analytical performance. Fashioned as a sensor that learns, the platform can host new content for the application at hand. Identification of biomarker-based fingerprints from complex mixtures has a direct linkage to e-nose and e-tongue research. Recently, we have moved to the point of big data acquisition alongside the linkage to machine learning and artificial intelligence. Here, exciting opportunities are afforded by multiparameter sensing that mimics the sense of taste, overcoming the limitations of salty, sweet, sour, bitter, and glutamate sensing and moving into fingerprints of health and wellness. This article summarizes developments related to the electronic taste chip system evolving into a platform that digitizes biology and affords clinical decision support tools. A dynamic body of literature and key review articles that have contributed to the shaping of these activities are also highlighted. This fully integrated sensor promises more rapid transition of biomarker panels into wide-spread clinical practice yielding valuable new insights into health diagnostics, benefiting early disease detection.
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Affiliation(s)
- Nicolaos Christodoulides
- Department of Biomaterials, College of Dentistry, Bioengineering Institute, New York University, New York, NY 10010, USA.
| | - Michael P McRae
- Department of Biomaterials, College of Dentistry, Bioengineering Institute, New York University, New York, NY 10010, USA.
| | - Glennon W Simmons
- Department of Biomaterials, College of Dentistry, Bioengineering Institute, New York University, New York, NY 10010, USA.
| | - Sayli S Modak
- Department of Biomaterials, College of Dentistry, Bioengineering Institute, New York University, New York, NY 10010, USA.
| | - John T McDevitt
- Department of Biomaterials, College of Dentistry, Bioengineering Institute, New York University, New York, NY 10010, USA.
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8
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A folding affinity paper-based electrochemical impedance device for cardiovascular risk assessment. Biosens Bioelectron 2019; 130:389-396. [DOI: 10.1016/j.bios.2018.09.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 09/01/2018] [Accepted: 09/08/2018] [Indexed: 12/11/2022]
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9
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Srivastava N, Nayak PA, Rana S. Point of Care- A Novel Approach to Periodontal Diagnosis-A Review. J Clin Diagn Res 2017; 11:ZE01-ZE06. [PMID: 28969294 PMCID: PMC5620935 DOI: 10.7860/jcdr/2017/26626.10411] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 07/16/2017] [Indexed: 11/24/2022]
Abstract
Periodontal disease, one of the prevalent oral diseases, is characterized by gingival inflammation and periodontal tissue destruction. Diagnosing this disease is challenging to the clinicians as the disease process is discontinuous and shows periods of exacerbation and remission. Traditional diagnostic methods basically tells about the past tissue destruction so new diagnostic methods are required which is able to detect the active state of the disease, determine the future progression and also estimates the response to the therapy, thereby helping in the better clinical management of the patient. Both saliva and Gingival crevicular fluid (GCF) are believed to be reliable medium to detect the biomarkers which plays a pivotal role in measuring the disease activity. Keeping these observations in mind rapid chairside tests are developed to diagnose periodontal disease called as Point of Care (POC) diagnostics which simplifies diagnosis and helps in improving the prognosis. This review article highlights about the biomarkers used in the diagnosis and throws light on the various available point of care diagnostic devices.
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Affiliation(s)
- Nancy Srivastava
- Assistant Professor, Department of Periodonitcs, NIMS Dental College, Jaipur, Rajasthan, India
| | - Prathibha Anand Nayak
- Faculty, Department of Dentistry, IBN Sina National College for Medical Studies, Jeddah, Kingdom of Saudi Arabia
| | - Shivendra Rana
- Assistant Professor, Department of Oral Pathology, Rajasthan Dental College and Hospital, Jaipur Rajasthan India
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10
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Christodoulides NJ, McRae MP, Abram TJ, Simmons GW, McDevitt JT. Innovative Programmable Bio-Nano-Chip Digitizes Biology Using Sensors That Learn Bridging Biomarker Discovery and Clinical Implementation. Front Public Health 2017; 5:110. [PMID: 28589118 PMCID: PMC5441161 DOI: 10.3389/fpubh.2017.00110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 05/02/2017] [Indexed: 11/13/2022] Open
Abstract
The lack of standard tools and methodologies and the absence of a streamlined multimarker approval process have hindered the translation rate of new biomarkers into clinical practice for a variety of diseases afflicting humankind. Advanced novel technologies with superior analytical performance and reduced reagent costs, like the programmable bio-nano-chip system featured in this article, have potential to change the delivery of healthcare. This universal platform system has the capacity to digitize biology, resulting in a sensor modality with a capacity to learn. With well-planned device design, development, and distribution plans, there is an opportunity to translate benchtop discoveries in the genomics, proteomics, metabolomics, and glycomics fields by transforming the information content of key biomarkers into actionable signatures that can empower physicians and patients for a better management of healthcare. While the process is complicated and will take some time, showcased here are three application areas for this flexible platform that combines biomarker content with minimally invasive or non-invasive sampling, such as brush biopsy for oral cancer risk assessment; serum, plasma, and small volumes of blood for the assessment of cardiac risk and wellness; and oral fluid sampling for drugs of abuse testing at the point of need.
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Affiliation(s)
- Nicolaos J. Christodoulides
- Department of Biomaterials, Bioengineering Institute, New York University College of Dentistry, New York, NY, USA
| | - Michael P. McRae
- Department of Biomaterials, Bioengineering Institute, New York University College of Dentistry, New York, NY, USA
| | | | - Glennon W. Simmons
- Department of Biomaterials, Bioengineering Institute, New York University College of Dentistry, New York, NY, USA
| | - John T. McDevitt
- Department of Biomaterials, Bioengineering Institute, New York University College of Dentistry, New York, NY, USA
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11
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Ma T, Zhang M, Wan Y, Cui Y, Ma L. Preparation of an Acridinium Ester-Labeled Antibody and Its Application in GoldMag Nanoparticle-Based, Ultrasensitive Chemiluminescence Immunoassay for the Detection of Human Epididymis Protein 4. MICROMACHINES 2017. [PMCID: PMC6189797 DOI: 10.3390/mi8050149] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
An ultrasensitive and rapid sandwich-type chemiluminescence immunoassay (CLIA) was developed for the clinical determination of human epididymis protein 4 (HE4) in human serum, using GoldMag nanoparticles as solid phase and acridinium ester (AE) as chemiluminescence system (GMP-CLIA). The process of AE labeling antibodies was systematically studied and evaluated. The effect of varies factors such as molar ratio of AE to antibodies, labeling time, and the components of elution buffer and trigger solution were optimized. Under the selected conditions, AE labeling experiments were successfully performed with the average labeling efficiency of 1.92 ± 0.08, and antibody utilization rate of 69.77 ± 1.19%. Antibody activity remained unchanged after labeling. The established GMP-CLIA method can detect HE4 in the range of 0.25–50 ng·mL−1 (10–2000 pM) with a detection limit of 0.084 ng·mL−1 (3.36 pM). The sensitivity has reached a high level, comparable with the current commercial detection kits. This proposed method has been successfully applied to the clinical determination of HE4 in 65 human sera. The results showed a good correlation with a clinical method, microplate-based chemiluminescence enzyme immunoassay (CLEIA), with the correlation coefficient of 0.9594.
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Affiliation(s)
- Ting Ma
- College of Life Sciences, Northwest University, Xi’an 710069, China;
| | - Mengdan Zhang
- National Engineering Research Center for Miniaturized Detection Systems, Xi’an 710069, China;
| | - Yinsheng Wan
- Department of Biology, Providence College, Providence, RI 02912, USA;
| | - Yali Cui
- College of Life Sciences, Northwest University, Xi’an 710069, China;
- National Engineering Research Center for Miniaturized Detection Systems, Xi’an 710069, China;
- Correspondence: (Y.C.); (L.M.); Tel.: +86-029-8830-2383 (Y.C.); +86-029-8830-3446 (L.M.)
| | - Le Ma
- College of Life Sciences, Northwest University, Xi’an 710069, China;
- National Engineering Research Center for Miniaturized Detection Systems, Xi’an 710069, China;
- Correspondence: (Y.C.); (L.M.); Tel.: +86-029-8830-2383 (Y.C.); +86-029-8830-3446 (L.M.)
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12
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Wang B, Prinsen P, Wang H, Bai Z, Wang H, Luque R, Xuan J. Macroporous materials: microfluidic fabrication, functionalization and applications. Chem Soc Rev 2017; 46:855-914. [DOI: 10.1039/c5cs00065c] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This article provides an up-to-date highly comprehensive overview (594 references) on the state of the art of the synthesis and design of macroporous materials using microfluidics and their applications in different fields.
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Affiliation(s)
- Bingjie Wang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process
- School of Mechanical and Power Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Pepijn Prinsen
- Departamento de Quimica Organica
- Universidad de Cordoba
- Campus de Rabanales
- Cordoba
- Spain
| | - Huizhi Wang
- School of Engineering and Physical Sciences
- Heriot-Watt University
- Edinburgh
- UK
| | - Zhishan Bai
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process
- School of Mechanical and Power Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Hualin Wang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process
- School of Mechanical and Power Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Rafael Luque
- Departamento de Quimica Organica
- Universidad de Cordoba
- Campus de Rabanales
- Cordoba
- Spain
| | - Jin Xuan
- School of Engineering and Physical Sciences
- Heriot-Watt University
- Edinburgh
- UK
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13
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Aray A, Chiavaioli F, Arjmand M, Trono C, Tombelli S, Giannetti A, Cennamo N, Soltanolkotabi M, Zeni L, Baldini F. SPR-based plastic optical fibre biosensor for the detection of C-reactive protein in serum. JOURNAL OF BIOPHOTONICS 2016; 9:1077-1084. [PMID: 27089540 DOI: 10.1002/jbio.201500315] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 03/11/2016] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
A plastic optical fibre biosensor based on surface plasmon resonance for the detection of C-reactive protein (CRP) in serum is proposed. The biosensor was integrated into a home-made thermo-stabilized microfluidic system that allows avoiding any thermal and/or mechanical fluctuation and maintaining the best stable conditions during the measurements. A working range of 0.006-70 mg L-1 and a limit of detection of 0.009 mg L-1 were achieved. These results are among the best compared to other SPR-based biosensors for CRP detection, especially considering that they were achieved in a real and complex medium, i.e. serum. In addition, since the sensor performances satisfy those requested in physiologically-relevant clinical applications, the whole biosensing platform could well address high sensitive, easy to realize, real-time, label-free, portable and low cost diagnosis of CRP for future lab-on-a-chip applications. 3D sketch (left) of the thermo-stabilized home-made flow cell developed to house the SPR-based plastic optical fibre biosensor. Exemplary response curve (shift of the SPR wavelength versus time) of the proposed biosensor (right) for the detection of C-reactive protein in serum.
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Affiliation(s)
- Ayda Aray
- Quantum Optics Group, Department of Physics, University of Isfahan, Hezar Jarib street, 98311, Isfahan, Islamic Republic of Iran
| | - Francesco Chiavaioli
- Institute of Applied Physics "Nello Carrara", National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - Mojtaba Arjmand
- Quantum Optics Group, Department of Physics, University of Isfahan, Hezar Jarib street, 98311, Isfahan, Islamic Republic of Iran
| | - Cosimo Trono
- Institute of Applied Physics "Nello Carrara", National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy.
| | - Sara Tombelli
- Institute of Applied Physics "Nello Carrara", National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - Ambra Giannetti
- Institute of Applied Physics "Nello Carrara", National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - Nunzio Cennamo
- Department of Industrial and Information Engineering, Second University of Naples, Via Roma 29, 81031, Aversa, Italy
| | - Mahmood Soltanolkotabi
- Quantum Optics Group, Department of Physics, University of Isfahan, Hezar Jarib street, 98311, Isfahan, Islamic Republic of Iran
| | - Luigi Zeni
- Department of Industrial and Information Engineering, Second University of Naples, Via Roma 29, 81031, Aversa, Italy
| | - Francesco Baldini
- Institute of Applied Physics "Nello Carrara", National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
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14
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Wang H, Xu Q, Shang L, Wang J, Rong F, Gu Z, Zhao Y. Boronate affinity molecularly imprinted inverse opal particles for multiple label-free bioassays. Chem Commun (Camb) 2016; 52:3296-9. [DOI: 10.1039/c5cc09371f] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Boronate affinity molecularly imprinted inverse opal particles were developed for the multiplex label-free detection of glycoproteins with high sensitivity and specificity.
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Affiliation(s)
- Huan Wang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - Qionghua Xu
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - Luoran Shang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - Jie Wang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - Fei Rong
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - Zhongze Gu
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
| | - Yuanjin Zhao
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- China
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15
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Conejero-Muriel M, Rodríguez-Ruiz I, Martínez-Rodríguez S, Llobera A, Gavira JA. McCLEC, a robust and stable enzymatic based microreactor platform. LAB ON A CHIP 2015; 15:4083-9. [PMID: 26334474 DOI: 10.1039/c5lc00776c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A microfluidic chip for cross-linked enzyme crystals (McCLEC) is presented and demonstrated to be a stable, reusable and robust biocatalyst-based device with very promising biotechnological applications. The cost-effective microfluidic platform allows in situ crystallization, cross-linking and enzymatic reaction assays on a single device. A large number of enzymatic reuses of the McCLEC platform were achieved and a comparative analysis is shown illustrating the efficiency of the process and its storage stability for more than one year.
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Affiliation(s)
- Mayte Conejero-Muriel
- Laboratorio de Estudios Cristalográficos, Laboratorio de Estudios Cristalográficos, IACT (CSIC-UGR), Avda de las Palmeras, 4, 18100 Armilla, Granada, Spain.
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16
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Development of optical biosensor technologies for cardiac troponin recognition. Anal Biochem 2015; 485:1-10. [DOI: 10.1016/j.ab.2015.06.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 05/29/2015] [Accepted: 06/01/2015] [Indexed: 11/18/2022]
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17
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Christodoulides N, De La Garza R, Simmons GW, McRae MP, Wong J, Newton TF, Smith R, Mahoney JJ, Hohenstein J, Gomez S, Floriano PN, Talavera H, Sloan DJ, Moody DE, Andrenyak DM, Kosten TR, Haque A, McDevitt JT. Application of programmable bio-nano-chip system for the quantitative detection of drugs of abuse in oral fluids. Drug Alcohol Depend 2015; 153:306-13. [PMID: 26048639 PMCID: PMC4509839 DOI: 10.1016/j.drugalcdep.2015.04.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 03/27/2015] [Accepted: 04/22/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE There is currently a gap in on-site drug of abuse monitoring. Current detection methods involve invasive sampling of blood and urine specimens, or collection of oral fluid, followed by qualitative screening tests using immunochromatographic cartridges. While remote laboratories then may provide confirmation and quantitative assessment of a presumptive positive, this instrumentation is expensive and decoupled from the initial sampling making the current drug-screening program inefficient and costly. The authors applied a noninvasive oral fluid sampling approach integrated with the in-development chip-based Programmable bio-nano-chip (p-BNC) platform for the detection of drugs of abuse. METHOD The p-BNC assay methodology was applied for the detection of tetrahydrocannabinol, morphine, amphetamine, methamphetamine, cocaine, methadone and benzodiazepines, initially using spiked buffered samples and, ultimately, using oral fluid specimen collected from consented volunteers. RESULTS Rapid (∼10min), sensitive detection (∼ng/mL) and quantitation of 12 drugs of abuse was demonstrated on the p-BNC platform. Furthermore, the system provided visibility to time-course of select drug and metabolite profiles in oral fluids; for the drug cocaine, three regions of slope were observed that, when combined with concentration measurements from this and prior impairment studies, information about cocaine-induced impairment may be revealed. CONCLUSIONS This chip-based p-BNC detection modality has significant potential to be used in the future by law enforcement officers for roadside drug testing and to serve a variety of other settings, including outpatient and inpatient drug rehabilitation centers, emergency rooms, prisons, schools, and in the workplace.
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Affiliation(s)
- Nicolaos Christodoulides
- Department of Bioengineering, Rice University, Houston TX.,Department of Chemistry, Rice University, Houston TX
| | - Richard De La Garza
- Menninger Department of Psychiatry & Behavioral Sciences, Baylor College of Medicine, Houston TX.,Department of Pharmacology, Baylor College of Medicine, Houston TX.,Department of Neuroscience, Baylor College of Medicine, Houston TX
| | - Glennon W. Simmons
- Department of Bioengineering, Rice University, Houston TX.,Department of Chemistry, Rice University, Houston TX
| | | | - Jorge Wong
- Department of Bioengineering, Rice University, Houston TX.,Department of Chemistry, Rice University, Houston TX
| | - Thomas F. Newton
- Menninger Department of Psychiatry & Behavioral Sciences, Baylor College of Medicine, Houston TX.,Department of Pharmacology, Baylor College of Medicine, Houston TX.,Department of Veterans Affairs Medical Center, Houston, TX
| | - Regina Smith
- Department of Bioengineering, Rice University, Houston TX
| | - James J. Mahoney
- Menninger Department of Psychiatry & Behavioral Sciences, Baylor College of Medicine, Houston TX
| | | | - Sobeyda Gomez
- Department of Bioengineering, Rice University, Houston TX
| | - Pierre N. Floriano
- Department of Bioengineering, Rice University, Houston TX.,Department of Chemistry, Rice University, Houston TX
| | | | | | - David E. Moody
- Center for Human Toxicology, Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT
| | - David M. Andrenyak
- Center for Human Toxicology, Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT
| | - Thomas R. Kosten
- Menninger Department of Psychiatry & Behavioral Sciences, Baylor College of Medicine, Houston TX.,Department of Pharmacology, Baylor College of Medicine, Houston TX.,Department of Neuroscience, Baylor College of Medicine, Houston TX.,Department of Veterans Affairs Medical Center, Houston, TX
| | - Ahmed Haque
- Department of Bioengineering, Rice University, Houston TX
| | - John T. McDevitt
- Department of Bioengineering, Rice University, Houston TX.,Department of Chemistry, Rice University, Houston TX.,Department Biomaterials, Bioengineering Institute, New York University, 433 First Avenue, Room 820, New York, NY 10010-4086, USA,Send correspondence to: John T. McDevitt, Chair, Department Biomaterials, Bioengineering Institute, New York University, 433 First Avenue, Room 820, New York, NY 10010-4086, USA, , Phone: 212-998-9204
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18
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Kulla E, Chou J, Simmons G, Wong J, McRae MP, Patel R, Floriano PN, Christodoulides N, Leach RJ, Thompson IM, McDevitt JT. Enhancement of performance in porous bead-based microchip sensors: Effects of chip geometry on bio-agent capture. RSC Adv 2015; 5:48194-48206. [PMID: 26097696 PMCID: PMC4470495 DOI: 10.1039/c5ra07910a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Measuring low concentrations of clinically-important biomarkers using porous bead-based lab-on-a-chip (LOC) platforms is critical for the successful implementation of point-of-care (POC) devices. One way to meet this objective is to optimize the geometry of the bead holder, referred to here as a micro-container. In this work, two geometric micro-containers were explored, the inverted pyramid frustum (PF) and the inverted clipped pyramid frustum (CPF). Finite element models of this bead array assay system were developed to optimize the micro-container and bead geometries for increased pressure, to increase analyte capture in porous bead-based fluorescence immunoassays. Custom micro-milled micro-container structures containing an inverted CPF geometry resulted in a 28% reduction in flow-through regions from traditional anisotropically-etched pyramidal geometry derived from Si-111 termination layers. This novel "reduced flow-through" design resulted in a 33% increase in analyte penetration into the bead and twofold increase in fluorescence signal intensity as demonstrated with C-Reactive Protein (CRP) antigen, an important biomarker of inflammation. A consequent twofold decrease in the limit of detection (LOD) and the limit of quantification (LOQ) of a proof-of-concept assay for the free isoform of Prostate-Specific Antigen (free PSA), an important biomarker for prostate cancer detection, is also presented. Furthermore, a 53% decrease in the bead diameter is shown to result in a 160% increase in pressure and 2.5-fold increase in signal, as estimated by COMSOL models and confirmed experimentally by epi-fluorescence microscopy. Such optimizations of the bead micro-container and bead geometries have the potential to significantly reduce the LODs and reagent costs for spatially programmed bead-based assay systems of this type.
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Affiliation(s)
- Eliona Kulla
- Department of Chemistry, Rice University, Houston, Texas 77005
| | - Jie Chou
- Department of Bioengineering, Rice University, Houston, Texas 77005
| | - Glennon Simmons
- Department of Chemistry, Rice University, Houston, Texas 77005
- Department of Bioengineering, Rice University, Houston, Texas 77005
| | - Jorge Wong
- Department of Chemistry, Rice University, Houston, Texas 77005
- Department of Bioengineering, Rice University, Houston, Texas 77005
| | - Michael P. McRae
- Department of Bioengineering, Rice University, Houston, Texas 77005
| | - Rushi Patel
- Department of Bioengineering, Rice University, Houston, Texas 77005
| | | | - Nicolaos Christodoulides
- Department of Chemistry, Rice University, Houston, Texas 77005
- Department of Bioengineering, Rice University, Houston, Texas 77005
| | - Robin J. Leach
- Urology, University of Texas Health Science Center at San Antonio, Texas 78229
| | - Ian M. Thompson
- Urology, University of Texas Health Science Center at San Antonio, Texas 78229
| | - John T. McDevitt
- Department of Chemistry, Rice University, Houston, Texas 77005
- Department of Bioengineering, Rice University, Houston, Texas 77005
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19
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Leary TF, Manafirasi S, Maldarelli C. Mass transfer in the biomolecular binding of a target against probe molecules on the surface of microbeads sequestered in wells in a microfluidic cell. LAB ON A CHIP 2015; 15:459-77. [PMID: 25408192 DOI: 10.1039/c4lc01185f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Diagnostic tools which screen the binding interactions of a protein target against a display of biomolecular probes to identify molecules which bind the target are central to cell proteomic studies, and to diagnostic assays. Here, we study a microfluidic design for screening interactions in which the probe molecules are hosted on microbeads sequestered in wells arranged at the bottom of a microfluidic flow channel. Assays are undertaken by streaming an analyte solution with a fluorescently labelled target through the cell, and identifying the fluorescing beads. Numerical simulations are first constructed for the analyte flow over the microbeads in the well array, and the increase in the target concentration on the microbead surface. The binding profile is expressed as a function of the ratio of the convective to the diffusive transport rates (Peclet number or Pe), and the ratio of the kinetic to the diffusive rates (Damkohler number, Da). For any Pe, as Da becomes small enough, the transport is determined by the intrinsic kinetic binding rate. As Pe increases, a thin concentration boundary layer develops over the top surface of the microbead because of the convective flow, and target binds more rapidly. However, the relatively stagnant layers of liquid in the well provide a diffusion barrier which slows the target transport, and for any Da and Pe the transport is slower than equivalent patches of probes arranged on the channel wall. Experiments are also undertaken at high Pe, using the binding of fluorescently labelled NeutrAvidin as a target to probes of its binding partner, biotin, on the microbead surface. The binding profile is compared to the simulations to measure the kinetic rate constant, and this comparison shows that the transport in the cell is not kinetically limited because of the diffusion barriers created by the stagnant liquid layer in the well. Simulations and experiments on microbeads which are only partially recessed in the well demonstrate an increase in the mass transfer rate as more of the microbead surface intersects the flow and the diffusion limitation due to the stagnant layer of liquid surrounding the bottom part of the microbead is minimized.
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Affiliation(s)
- Thomas F Leary
- Levich Institute and Department of Chemical Engineering, The City College of the City University of New York, New York, New York 10031, USA.
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20
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Stenken JA, Poschenrieder AJ. Bioanalytical chemistry of cytokines--a review. Anal Chim Acta 2015; 853:95-115. [PMID: 25467452 PMCID: PMC4717841 DOI: 10.1016/j.aca.2014.10.009] [Citation(s) in RCA: 192] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 09/30/2014] [Accepted: 10/08/2014] [Indexed: 02/06/2023]
Abstract
Cytokines are bioactive proteins produced by many different cells of the immune system. Due to their role in different inflammatory disease states and maintaining homeostasis, there is enormous clinical interest in the quantitation of cytokines. The typical standard methods for quantitation of cytokines are immunoassay-based techniques including enzyme-linked immusorbent assays (ELISA) and bead-based immunoassays read by either standard or modified flow cytometers. A review of recent developments in analytical methods for measurements of cytokine proteins is provided. This review briefly covers cytokine biology and the analysis challenges associated with measurement of these biomarker proteins for understanding both health and disease. New techniques applied to immunoassay-based assays are presented along with the uses of aptamers, electrochemistry, mass spectrometry, optical resonator-based methods. Methods used for elucidating the release of cytokines from single cells as well as in vivo collection methods are described.
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Affiliation(s)
- Julie A Stenken
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Andreas J Poschenrieder
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA; Pharmaceutical Radiochemistry, Technische Universität München, Walther-Meißner-Street 3, D-85748 Garching, Germany
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21
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Gel pad array chip for high throughput and multi-analyte microbead-based immunoassays. Biosens Bioelectron 2014; 66:370-8. [PMID: 25463645 DOI: 10.1016/j.bios.2014.10.083] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 09/17/2014] [Accepted: 10/09/2014] [Indexed: 11/20/2022]
Abstract
We present here a gel pad array chip for high-throughput and multi-analyte microbead-based immunoassays. The chip is fabricated by photo-patterning of two polymeric gels, polyacrylamide gel and polyethylene glycol (PEG) gel, on a glass slide. The resulting chip consists of 40 polyacrylamide gel pad array units for the immobilization of microbeads and each gel pad array is surrounded with a PEG micropillar ring to confine the samples within the microarray. As a proof of concept, this chip was tested for quantitative immunoassays for two model cancer markers, human chorionic gonadotropin (hCG) and prostate specific antigen (PSA), in serum samples. Detection limits below the physiological threshold level for cancer diagnosis were achieved with good inter- and intra-chip reproducibility. Moreover, by using spatial encoded microbeads, simultaneous detection of both hCG and PSA on each gel pad array is achieved with single filter fluorescence imaging. This gel pad array chip is easy to use, easy to fabricate with low cost materials and minimal equipment and reusable. It could be a useful tool for common biolabs to customize their own microbead array for multi-analyte immunoassays.
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22
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Shadfan BH, Simmons AR, Simmons GW, Ho A, Wong J, Lu KH, Bast RC, McDevitt JT. A multiplexable, microfluidic platform for the rapid quantitation of a biomarker panel for early ovarian cancer detection at the point-of-care. Cancer Prev Res (Phila) 2014; 8:37-48. [PMID: 25388014 DOI: 10.1158/1940-6207.capr-14-0248] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Point-of-care (POC) diagnostic platforms have the potential to enable low-cost, large-scale screening. As no single biomarker is shed by all ovarian cancers, multiplexed biomarker panels promise improved sensitivity and specificity to address the unmet need for early detection of ovarian cancer. We have configured the programmable bio-nano-chip (p-BNC)-a multiplexable, microfluidic, modular platform-to quantify a novel multi-marker panel comprising CA125, HE4, MMP-7, and CA72-4. The p-BNC is a bead-based immunoanalyzer system with a credit-card-sized footprint that integrates automated sample metering, bubble and debris removal, reagent storage and waste disposal, permitting POC analysis. Multiplexed p-BNC immunoassays demonstrated high specificity, low cross-reactivity, low limits of detection suitable for early detection, and a short analysis time of 43 minutes. Day-to-day variability, a critical factor for longitudinally monitoring biomarkers, ranged between 5.4% and 10.5%, well below the biologic variation for all four markers. Biomarker concentrations for 31 late-stage sera correlated well (R(2) = 0.71 to 0.93 for various biomarkers) with values obtained on the Luminex platform. In a 31 patient cohort encompassing early- and late-stage ovarian cancers along with benign and healthy controls, the multiplexed p-BNC panel was able to distinguish cases from controls with 68.7% sensitivity at 80% specificity. Utility for longitudinal biomarker monitoring was demonstrated with prediagnostic plasma from 2 cases and 4 controls. Taken together, the p-BNC shows strong promise as a diagnostic tool for large-scale screening that takes advantage of faster results and lower costs while leveraging possible improvement in sensitivity and specificity from biomarker panels.
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Affiliation(s)
| | - Archana R Simmons
- Department of Chemistry, Rice University, Houston, Texas. Department of Bioengineering, Rice University, Houston, Texas
| | - Glennon W Simmons
- Department of Chemistry, Rice University, Houston, Texas. Department of Bioengineering, Rice University, Houston, Texas
| | - Andy Ho
- Department of Chemistry, Rice University, Houston, Texas. Department of Bioengineering, Rice University, Houston, Texas
| | - Jorge Wong
- Department of Chemistry, Rice University, Houston, Texas. Department of Bioengineering, Rice University, Houston, Texas
| | - Karen H Lu
- Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Robert C Bast
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - John T McDevitt
- Department of Chemistry, Rice University, Houston, Texas. Department of Bioengineering, Rice University, Houston, Texas.
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23
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Protein Microarrays with Novel Microfluidic Methods: Current Advances. MICROARRAYS 2014; 3:180-202. [PMID: 27600343 PMCID: PMC4996363 DOI: 10.3390/microarrays3030180] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/10/2014] [Accepted: 06/16/2014] [Indexed: 01/08/2023]
Abstract
Microfluidic-based micromosaic technology has allowed the pattering of recognition elements in restricted micrometer scale areas with high precision. This controlled patterning enabled the development of highly multiplexed arrays multiple analyte detection. This arraying technology was first introduced in the beginning of 2001 and holds tremendous potential to revolutionize microarray development and analyte detection. Later, several microfluidic methods were developed for microarray application. In this review we discuss these novel methods and approaches which leverage the property of microfluidic technologies to significantly improve various physical aspects of microarray technology, such as enhanced imprinting homogeneity, stability of the immobilized biomolecules, decreasing assay times, and reduction of the costs and of the bulky instrumentation.
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24
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Li J, Qi H, Wang H, Yang Z, Zhu P, Diao G. Fluorescence energy transfer-based multiplexed hybridization assay using gold nanoparticles and quantum dot conjugates on photonic crystal beads. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1217-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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25
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Xiong H, Zheng X. Label-free electrochemiluminescence detection of specific-sequence DNA based on DNA probes capped ion nanochannels. Analyst 2014; 139:1732-9. [DOI: 10.1039/c3an02187d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A label-free electrochemiluminescence method for detecting specific-sequence DNA has been developed based on DNA probes capped ion nanochannels. This method is simple, inexpensive, and can be potentially expanded for the design of different types of ECL aptasensors.
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Affiliation(s)
- Haitao Xiong
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062, P.R. China
| | - Xingwang Zheng
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062, P.R. China
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26
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Kishore M, Panat SR, Choudhary A, Aggarwal A, Upadhyay N, Agarwal N, Alok A. Oral diagnostics: an integral component to geriatric health care. Aging Male 2013; 16:159-63. [PMID: 23617577 DOI: 10.3109/13685538.2013.789014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Aging is inevitable, every day we live we age. The mouth is referred to as a mirror of overall health, reinforcing that oral health is an integral part of general health. Oral health reflects overall well being for the elderly population. Compromised oral health may be a risk factor for systemic diseases commonly occurring in age. Diagnosis and proper treatment is essential for healthy aging. Timely diagnosis, appropriate treatment and regular follow-up of both oral and systemic diseases are a prerequisite for active aging. Oral diagnostics is a revolutionary development with high potential to replace other investigative modalities. Changing demographics, including the increase in life expectancy and the growing numbers of elderly, has focused attention on the need for dental research activities to be expanded for geriatric dentistry. This paper is aimed to shed light on the growing elderly population and their ailments. It also aims to create awareness among health care providers about oral diagnostics and their application in geriatrics.
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Affiliation(s)
- Mallika Kishore
- Department of Oral Medicine and Radiology, Institute of Dental Sciences , Bareilly, UP , India
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27
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Chen X, Shojaei-Zadeh S, Gilchrist ML, Maldarelli C. A lipobead microarray assembled by particle entrapment in a microfluidic obstacle course and used for the display of cell membrane receptors. LAB ON A CHIP 2013; 13:3041-3060. [PMID: 23748734 DOI: 10.1039/c3lc50083g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Platforms which can display cell membrane ligands and receptors as a microarray library of probes for screening against a target are essential tools in drug discovery, biomarker identification, and pathogen detection. Membrane receptors and ligands require their native bilayer environment to retain their selectivity and binding affinity, and this complicates displaying them in a microarray platform. In this study, a design is developed in which the probes are first incorporated in supported lipid bilayers formed around micron-sized particles (lipobeads), and the microbeads themselves are then arrayed on a surface by hydrodynamic capture in a microfluidic obstacle course of traps. The traps are "V" shaped open enclosures, which are arranged in a wide channel of a microfluidic device, and capture the lipobeads (slightly smaller than the channel height) as they are streamed through the course. Screening assays are undertaken directly in the device after assembly, by streaming a fluorescently labeled target through the device and detecting the bead fluorescence. Conditions are first established for which the supported bilayers on the bead surface remain intact during the capture and assay steps, using fluorescent tags in the bilayer to infer bilayer integrity. Numerical calculations of the hydrodynamic drag coefficient on the entrapped beads are presented in conjunction with the stability experiments to develop criteria for the bilayer stability as a function of the screening assay perfusion rate. Simulations of the flow streamlines are also presented to quantify the trapping efficiency of the obstacle course. Screening assays are illustrated, assaying fluorescently labeled NeutrAvidin with biotin, and labeled cholera toxin with its ganglioside binding ligand, GM1. Sequential capturing of sets of lipobeads (one at a time, and with each set bearing a different probe), followed by indexing the bead positions after each set is entrapped, allows for the construction of an indexed array of multiple probes without the need for particle encoding and is illustrated using the NeutrAvidin-biotin pair. Finally, the lipobead platform is used for quantitatively measuring the kinetic rate constants for the binding of a probe (biotin) to a target (NeutrAvidin).
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Affiliation(s)
- Xiaoxiao Chen
- Levich Institute and Department of Chemical Engineering, The City College of the City University of New York, New York, New York 10031, USA
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28
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Abdellaoui S, Corgier BC, Mandon CA, Doumèche B, Marquette CA, Blum LJ. Biomolecules Immobilization Using the Aryl Diazonium Electrografting. ELECTROANAL 2013. [DOI: 10.1002/elan.201200334] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Abe K, Hashimoto Y, Yatsushiro S, Yamamura S, Bando M, Hiroshima Y, Kido JI, Tanaka M, Shinohara Y, Ooie T, Baba Y, Kataoka M. Simultaneous immunoassay analysis of plasma IL-6 and TNF-α on a microchip. PLoS One 2013; 8:e53620. [PMID: 23326472 PMCID: PMC3541141 DOI: 10.1371/journal.pone.0053620] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Accepted: 11/30/2012] [Indexed: 11/19/2022] Open
Abstract
Sandwich enzyme-linked immunosorbant assay (ELISA) using a 96-well plate is frequently employed for clinical diagnosis, but is time-and sample-consuming. To overcome these drawbacks, we performed a sandwich ELISA on a microchip. The microchip was made of cyclic olefin copolymer with 4 straight microchannels. For the construction of the sandwich ELISA for interleukin-6 (IL-6) or tumor necrosis factor-α (TNF-α), we used a piezoelectric inkjet printing system for the deposition and fixation of the 1st anti-IL-6 antibody or 1st anti-TNF-α antibody on the surface of the each microchannel. After the infusion of 2 µl of sample to the microchannel and a 20 min incubation, 2 µl of biotinylated 2nd antibody for either antigen was infused and a 10 min incubation. Then 2 µl of avidin-horseradish peroxidase was infused; and after a 5 min incubation, the substrate for peroxidase was infused, and the luminescence intensity was measured. Calibration curves were obtained between the concentration and luminescence intensity over the range of 0 to 32 pg/ml (IL-6: R2 = 0.9994, TNF-α: R2 = 0.9977), and the detection limit for each protein was 0.28 pg/ml and 0.46 pg/ml, respectively. Blood IL-6 and TNF-α concentrations of 5 subjects estimated from the microchip data were compared with results obtained by the conventional method, good correlations were observed between the methods according to linear regression analysis (IL-6: R2 = 0.9954, TNF-α: R2 = 0.9928). The reproducibility of the presented assay for the determination of the blood IL-6 and TNF-α concentration was comparable to that obtained with the 96-well plate. Simultaneous detection of blood IL-6 and TNF-α was possible by the deposition and fixation of each 1st antibody on the surface of a separate microchannel. This assay enabled us to determine simultaneously blood IL-6 and TNF-α with accuracy, satisfactory sensitivity, time saving ability, and low consumption of sample and reagents, and will be applicable to clinic diagnosis.
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Affiliation(s)
- Kaori Abe
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Japan
| | - Yoshiko Hashimoto
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Japan
| | - Shouki Yatsushiro
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Japan
| | - Shohei Yamamura
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Japan
| | - Mika Bando
- Department of Periodontology and Endodontology, Oral and Maxillofacial Dentistry, Division of Medico-Dental Dynamics and Reconstruction, Institute of Health Biosciences, University of Tokushima, Tokushima, Japan
| | - Yuka Hiroshima
- Department of Periodontology and Endodontology, Oral and Maxillofacial Dentistry, Division of Medico-Dental Dynamics and Reconstruction, Institute of Health Biosciences, University of Tokushima, Tokushima, Japan
| | - Jun-ichi Kido
- Department of Periodontology and Endodontology, Oral and Maxillofacial Dentistry, Division of Medico-Dental Dynamics and Reconstruction, Institute of Health Biosciences, University of Tokushima, Tokushima, Japan
| | - Masato Tanaka
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Japan
| | - Yasuo Shinohara
- Faculty of Pharmaceutical Sciences, University of Tokushima, Tokushima, Japan
- Institute for Genome Research, University of Tokushima, Tokushima, Japan
| | - Toshihiko Ooie
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Japan
| | - Yoshinobu Baba
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Masatoshi Kataoka
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Japan
- * E-mail:
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Christodoulides N, Pierre FN, Sanchez X, Li L, Hocquard K, Patton A, Muldoon R, Miller CS, Ebersole JL, Redding S, Yeh CK, Furmaga WB, Wampler DA, Bozkurt B, Ballantyne CM, McDevitt JT. Programmable bio-nanochip technology for the diagnosis of cardiovascular disease at the point-of-care. Methodist Debakey Cardiovasc J 2012; 8:6-12. [PMID: 22891104 DOI: 10.14797/mdcj-8-1-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Cardiovascular disease remains the leading cause of death in the world and continues to serve as the major contributor to healthcare costs. Likewise, there is an ever-increasing need and demand for novel and more efficient diagnostic tools for the early detection of cardiovascular disease, especially at the point-of-care (POC). This article reviews the programmable bio-nanochip (P-BNC) system, a new medical microdevice approach with the capacity to deliver both high performance and reduced cost. This fully integrated, total analysis system leverages microelectronic components, microfabrication techniques, and nanotechnology to noninvasively measure multiple cardiac biomarkers in complex fluids, such as saliva, while offering diagnostic accuracy equal to laboratory-confined reference methods. This article profiles the P-BNC approach, describes its performance in real-world testing of clinical samples, and summarizes new opportunities for medical microdevices in the field of cardiac diagnostics.
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Chou J, Wong J, Christodoulides N, Floriano PN, Sanchez X, McDevitt J. Porous bead-based diagnostic platforms: bridging the gaps in healthcare. SENSORS (BASEL, SWITZERLAND) 2012; 12:15467-99. [PMID: 23202219 PMCID: PMC3522972 DOI: 10.3390/s121115467] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Revised: 10/25/2012] [Accepted: 11/01/2012] [Indexed: 01/11/2023]
Abstract
Advances in lab-on-a-chip systems have strong potential for multiplexed detection of a wide range of analytes with reduced sample and reagent volume; lower costs and shorter analysis times. The completion of high-fidelity multiplexed and multiclass assays remains a challenge for the medical microdevice field; as it struggles to achieve and expand upon at the point-of-care the quality of results that are achieved now routinely in remote laboratory settings. This review article serves to explore for the first time the key intersection of multiplexed bead-based detection systems with integrated microfluidic structures alongside porous capture elements together with biomarker validation studies. These strategically important elements are evaluated here in the context of platform generation as suitable for near-patient testing. Essential issues related to the scalability of these modular sensor ensembles are explored as are attempts to move such multiplexed and multiclass platforms into large-scale clinical trials. Recent efforts in these bead sensors have shown advantages over planar microarrays in terms of their capacity to generate multiplexed test results with shorter analysis times. Through high surface-to-volume ratios and encoding capabilities; porous bead-based ensembles; when combined with microfluidic elements; allow for high-throughput testing for enzymatic assays; general chemistries; protein; antibody and oligonucleotide applications.
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Affiliation(s)
- Jie Chou
- Department of Bioengineering, Rice University, 6100 Main St MS-142, Houston, TX 77005, USA; E-Mails: (J.C.); (N.C.); (P.N.F.); (X.S.)
| | - Jorge Wong
- Department of Chemistry, University of Texas at Austin, 1 University Station A5300, Austin, TX 78712, USA; E-Mail:
| | - Nicolaos Christodoulides
- Department of Bioengineering, Rice University, 6100 Main St MS-142, Houston, TX 77005, USA; E-Mails: (J.C.); (N.C.); (P.N.F.); (X.S.)
- Department of Chemistry, Rice University, 6100 Main St MS-142, Houston, TX 77005, USA
| | - Pierre N. Floriano
- Department of Bioengineering, Rice University, 6100 Main St MS-142, Houston, TX 77005, USA; E-Mails: (J.C.); (N.C.); (P.N.F.); (X.S.)
- Department of Chemistry, Rice University, 6100 Main St MS-142, Houston, TX 77005, USA
| | - Ximena Sanchez
- Department of Bioengineering, Rice University, 6100 Main St MS-142, Houston, TX 77005, USA; E-Mails: (J.C.); (N.C.); (P.N.F.); (X.S.)
- Department of Chemistry, Rice University, 6100 Main St MS-142, Houston, TX 77005, USA
| | - John McDevitt
- Department of Bioengineering, Rice University, 6100 Main St MS-142, Houston, TX 77005, USA; E-Mails: (J.C.); (N.C.); (P.N.F.); (X.S.)
- Department of Chemistry, Rice University, 6100 Main St MS-142, Houston, TX 77005, USA
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32
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Lu W, Fu C, Chen Y, Lu J, Yao Y, Shen C, Gu Z. Multiplex detection of B-type natriuretic peptide, cardiac troponin I and C-reactive protein with photonic suspension array. PLoS One 2012; 7:e41448. [PMID: 22848497 PMCID: PMC3407227 DOI: 10.1371/journal.pone.0041448] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Accepted: 06/27/2012] [Indexed: 11/18/2022] Open
Abstract
A novel photonic suspension array has been developed for multiplex immunoassay. The carriers of this array were silica colloidal crystal beads (SCCBs). The codes of these carriers have characteristic reflection peaks originating from their structural periodicity; therefore they do not suffer from fading, bleaching, quenching or chemical instability. In addition, the fluorescence background of SCCBs is negligible because no fluorescence materials or dyes are involved. With a sandwich method, the proposed suspension array was used for simultaneous multiplex detection of heart failure (HF) and coronary heart disease (CAD) biomarkers in one test tube. The results showed that the three biomarkers: cardiac troponin I (cTnI), C-reactive protein (CRP) and B-type natriuretic peptide (BNP) could be assayed in the ranges of 0.1-500 ng/ml, 1-500 mg/L and 0.02-50 ng/ml with detection limits of 0.01 ng/ml, 0.36 mg/L and 0.004 ng/ml at 3σ, respectively. There were no significant differences between the photonic suspension array and traditional parallel single-analyte test. This novel method demonstrated acceptable accuracy, high detection sensitivity and reproducibility and excellent storage stability. This technique provides a new strategy for low cost, automated, and simultaneous multiplex immunoassays of bio-markers.
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Affiliation(s)
- Wenbin Lu
- Department of Cardiology, Xinhua Hospital affiliated to Shanghai Jiao tong University, Shanghai, China
- Department of Cardiology, ZhongDa hospital affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Cong Fu
- Department of Cardiology, ZhongDa hospital affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Yong Chen
- Department of Cardiology, ZhongDa hospital affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Jun Lu
- Department of Cardiology, ZhongDa hospital affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Yuyu Yao
- Department of Cardiology, ZhongDa hospital affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Chengxing Shen
- Department of Cardiology, Xinhua Hospital affiliated to Shanghai Jiao tong University, Shanghai, China
- * E-mail: (CXS); (ZZG)
| | - Zhongze Gu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
- * E-mail: (CXS); (ZZG)
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33
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Fu E, Yager P, Floriano PN, Christodoulides N, McDevitt JT. Perspective on diagnostics for global health. IEEE Pulse 2012; 2:40-50. [PMID: 22147068 DOI: 10.1109/mpul.2011.942766] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Elain Fu
- Department of Bioengineering, University of Washington, Washington, USA.
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Chou J, Lennart A, Wong J, Ali MF, Floriano PN, Christodoulides N, Camp J, McDevitt JT. Modeling analyte transport and capture in porous bead sensors. Anal Chem 2012; 84:2569-75. [PMID: 22250703 DOI: 10.1021/ac2022822] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Porous agarose microbeads, with high surface to volume ratios and high binding densities, are attracting attention as highly sensitive, affordable sensor elements for a variety of high performance bioassays. While such polymer microspheres have been extensively studied and reported on previously and are now moving into real-world clinical practice, very little work has been completed to date to model the convection, diffusion, and binding kinetics of soluble reagents captured within such fibrous networks. Here, we report the development of a three-dimensional computational model and provide the initial evidence for its agreement with experimental outcomes derived from the capture and detection of representative protein and genetic biomolecules in 290 μm porous beads. We compare this model to antibody-mediated capture of C-reactive protein and bovine serum albumin, along with hybridization of oligonucleotide sequences to DNA probes. These results suggest that, due to the porous interior of the agarose bead, internal analyte transport is both diffusion and convection based, and regardless of the nature of analyte, the bead interiors reveal an interesting trickle of convection-driven internal flow. On the basis of this model, the internal to external flow rate ratio is found to be in the range of 1:170 to 1:3100 for beads with agarose concentration ranging from 0.5% to 8% for the sensor ensembles here studied. Further, both model and experimental evidence suggest that binding kinetics strongly affect analyte distribution of captured reagents within the beads. These findings reveal that high association constants create a steep moving boundary in which unbound analytes are held back at the periphery of the bead sensor. Low association constants create a more shallow moving boundary in which unbound analytes diffuse further into the bead before binding. These models agree with experimental evidence and thus serve as a new tool set for the study of bioagent transport processes within a new class of medical microdevices.
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Affiliation(s)
- Jie Chou
- Department of Bioengineering, Rice University, Houston, Texas 77005, USA
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35
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Henley WH, Dennis PJ, Ramsey JM. Fabrication of microfluidic devices containing patterned microwell arrays. Anal Chem 2012; 84:1776-80. [PMID: 22242542 DOI: 10.1021/ac202445g] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A rapid fabrication and prototyping technique to incorporate microwell arrays with sub-10 μm features within a single layer of microfluidic circuitry is presented. Typically, the construction of devices that incorporate very small architecture within larger components has required the assembly of multiple elements to form a working device. Rapid, facile production of a working device using only a single layer of molded polydimethylsiloxane (PDMS) and a glass support substrate is achieved with the reported fabrication technique. A combination of conventional wet-chemical etching for larger (≥20 μm) microchannel features and focused ion beam (FIB) milling for smaller (≤10 μm) microwell features was used to fabricate a monolithic glass master mold. PDMS/glass hybrid chips were then produced using simple molding and oxygen plasma bonding methods. Microwell structures were loaded with 3 μm antibody-functionalized dye-encoded polystyrene spheres, and a sandwich immunoassay for common cytokines was performed to demonstrate proof-of-principle. Potential applications for this device include highly parallel multiplexed sandwich immunoassays, DNA/RNA hybridization analyses, and enzyme linked immunosorbent assay (ELISA). The fabrication technique described can be used for rapid prototyping of devices wherever submicrometer- to micrometer-sized features are incorporated into a microfluidic device.
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Affiliation(s)
- W Hampton Henley
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapman Hall CB#3216, Chapel Hill, North Carolina 27599, USA
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36
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Göransson Nyberg A, Stricklin D, Sellström Å. Mass casualties and health care following the release of toxic chemicals or radioactive material--contribution of modern biotechnology. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2011; 8:4521-49. [PMID: 22408587 PMCID: PMC3290976 DOI: 10.3390/ijerph8124521] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 11/25/2011] [Accepted: 11/29/2011] [Indexed: 11/16/2022]
Abstract
Catastrophic chemical or radiological events can cause thousands of casualties. Such disasters require triage procedures to identify the development of health consequences requiring medical intervention. Our objective is to analyze recent advancements in biotechnology for triage in mass emergency situations. In addition to identifying persons "at risk" of developing health problems, these technologies can aid in securing the unaffected or "worried well". We also highlight the need for public/private partnerships to engage in some of the underpinning sciences, such as patho-physiological mechanisms of chemical and radiological hazards, and for the necessary investment in the development of rapid assessment tools through identification of biochemical, molecular, and genetic biomarkers to predict health effects. For chemical agents, biomarkers of neurotoxicity, lung damage, and clinical and epidemiological databases are needed to assess acute and chronic effects of exposures. For radiological exposures, development of rapid, sensitive biomarkers using advanced biotechnologies are needed to sort exposed persons at risk of life-threatening effects from persons with long-term risk or no risk. The final implementation of rapid and portable diagnostics tools suitable for emergency care providers to guide triage and medical countermeasures use will need public support, since commercial incentives are lacking.
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Affiliation(s)
- Ann Göransson Nyberg
- Swedish Defence Research Agency, FOI CBRN—Defence and Security, 20 Cementvägen, SE 901 82 Umea, Sweden
| | - Daniela Stricklin
- Applied Research Associates, Inc., 1235 South Clark Street Ste, Arlington, VA 22203, USA;
| | - Åke Sellström
- European CBRNE Center, KBC Building, 6 Linnaeus väg, SE 901 87 Umea, Sweden;
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37
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Zhang J, Zhang Y, Lian S, Liu Y, Kang Z, Lee ST. Highly ordered macroporous carbon spheres and their catalytic application for methanol oxidation. J Colloid Interface Sci 2011; 361:503-8. [DOI: 10.1016/j.jcis.2011.06.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2011] [Revised: 06/03/2011] [Accepted: 06/05/2011] [Indexed: 10/18/2022]
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38
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Du N, Chou J, Kulla E, Floriano PN, Christodoulides N, McDevitt JT. A disposable bio-nano-chip using agarose beads for high performance immunoassays. Biosens Bioelectron 2011; 28:251-6. [PMID: 21852104 DOI: 10.1016/j.bios.2011.07.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 07/07/2011] [Accepted: 07/13/2011] [Indexed: 11/18/2022]
Abstract
This article reports on the fabrication of a disposable bio-nano-chip (BNC), a microfluidic device composed of polydimethylsiloxane (PDMS) and thiolene-based optical epoxy which is both cost-effective and suitable for high performance immunoassays. A novel room temperature (RT) bonding technique was utilized so as to achieve irreversible covalent bonding between PDMS and thiolene-based epoxy layers, while at the same time being compatible with the insertion of agarose bead sensors, selectively arranged in an array of pyramidal microcavities replicated in the thiolene thin film layer. In the sealed device, the bead-supporting epoxy film is sandwiched between two PDMS layers comprising of fluidic injection and drain channels. The agarose bead sensors used in the device are sensitized with anti-C-reactive protein (CRP) antibody, and a fluorescent sandwich-type immunoassay was run to characterize the performance of this device. Computational fluid dynamics (CFD) was used based on the device specifications to model the bead penetration. Experimental data revealed analyte penetration of the immunocomplex to 100 μm into the 280 μm diameter agarose beads, which correlated well with the simulation. A dose-response curve was obtained and the linear dynamic range of the assay was established over 1 ng/mL to 50 ng/mL with a limit of detection less than 1 ng/mL.
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Affiliation(s)
- Nan Du
- Rice Quantum Institute, Rice University, Houston, TX 77005, USA
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39
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Immunoassays in microfluidic systems. Anal Bioanal Chem 2010; 397:991-1007. [PMID: 20422163 DOI: 10.1007/s00216-010-3678-8] [Citation(s) in RCA: 217] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2010] [Revised: 03/21/2010] [Accepted: 03/22/2010] [Indexed: 10/19/2022]
Abstract
Immunoassays have greatly benefited from miniaturization in microfluidic systems. This review, which summarizes developments in microfluidics-based immunoassays since 2000, includes four sections, focusing on the configurations of immunoassays that have been implemented in microfluidics, the main fluid handling modalities that have been used for microfluidic immunoassays, multiplexed immunoassays in microfluidic platforms, and the emergence of label-free detection techniques. The field of microfluidic immunoassays is continuously improving and has great promise for the future.
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40
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Lee HJ, Lee SH, Yasukawa T, Ramón-Azcón J, Mizutani F, Ino K, Shiku H, Matsue T. Rapid and simple immunosensing system for simultaneous detection of tumor markers based on negative-dielectrophoretic manipulation of microparticles. Talanta 2010; 81:657-63. [DOI: 10.1016/j.talanta.2009.12.058] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Revised: 12/25/2009] [Accepted: 12/28/2009] [Indexed: 11/16/2022]
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41
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Jokerst JV, McDevitt JT. Programmable nano-bio-chips: multifunctional clinical tools for use at the point-of-care. Nanomedicine (Lond) 2010; 5:143-55. [PMID: 20025471 DOI: 10.2217/nnm.09.94] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new generation of programmable diagnostic devices is needed to take advantage of information generated from the study of genomics, proteomics, metabolomics and glycomics. This report describes the 'programmable nano-bio-chip' with potential to bridge the significant scientific, technology and clinical gaps through the creation of a diagnostic platform to measure the molecules of life. This approach, with results at the point-of-care, possesses capabilities for measuring such diverse analyte classes as cells, proteins, DNA and small molecules in the same compact device. Applications such as disease diagnosis and prognosis for areas including cancer, heart disease and HIV are described. New diagnostic panels are inserted as 'plug and play' elements into the modular platform with universal assay operating systems and standard read out sequences. The nano-bio-chip ensemble exhibits excellent analytical performance and cost-effectiveness with extensive validation versus standard reference methods (R(2) = 0.95-0.99). This report describes the construction and use of two major classes of nano-bio-chip designs that serve as cellular and chemical processing units, and provides perspective on future growth in this newly emerging field of programmable nano-bio-chip sensor systems.
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Affiliation(s)
- Jesse V Jokerst
- Molecular Imaging Program at Stanford, Stanford University School of Medicine, 318 Campus Drive, Stanford, CA 94305-5427, USA.
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42
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Miller CS, Foley JD, Bailey AL, Campell CL, Humphries RL, Christodoulides N, Floriano PN, Simmons G, Bhagwandin B, Jacobson JW, Redding SW, Ebersole JL, McDevitt JT. Current developments in salivary diagnostics. Biomark Med 2010; 4:171-89. [PMID: 20387312 PMCID: PMC2857781 DOI: 10.2217/bmm.09.68] [Citation(s) in RCA: 210] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Salivary diagnostics is an emerging field that has progressed through several important developments in the past decade, including the publication of the human salivary proteome and the infusion of federal funds to integrate nanotechnologies and microfluidic engineering concepts into developing compact point-of-care devices for rapid analysis of this secretion. In this article, we discuss some of these developments and their relevance to the prognosis, diagnosis and management of periodontitis, as an oral target, and cardiovascular disease, as a systemic example for the potential of these biodiagnostics. Our findings suggest that several biomarkers are associated with distinct biological stages of these diseases and demonstrate promise as practical biomarkers in identifying and managing periodontal disease, and acute myocardial infarction. The majority of these studies have progressed through biomarker discovery, with the identified molecules requiring more robust clinical studies to enable substantive validation for disease diagnosis. It is predicted that with continued advances in this field the use of a combination of biomarkers in multiplex panels is likely to yield accurate screening tools for these diagnoses in the near future.
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Affiliation(s)
- Craig S Miller
- Oral Medicine Section, MN 324, University of Kentucky College of Dentistry, 800 Rose Street, Lexington, KY 40536-0297, USA Tel.: +1 859 323 5598
| | - Joseph D Foley
- Gill Heart Institute, University of Kentucky, Lexington, KY, USA
| | - Alison L Bailey
- Gill Heart Institute, University of Kentucky, Lexington, KY, USA
| | - Charles L Campell
- Gill Heart Institute, University of Kentucky, Lexington, KY, USA
- Lexington Veterans Administration Hospital, Lexington, KY, USA
| | | | | | | | - Glennon Simmons
- Bioengineering & Chemistry, Rice University, Houston, TX, USA
| | | | | | - Spencer W Redding
- Department of Dental Diagnostic Sciences, University of Texas, San Antonio, TX, USA
| | - Jeffrey L Ebersole
- Oral Medicine Section, MN 324, University of Kentucky College of Dentistry, 800 Rose Street, Lexington, KY 40536-0297, USA Tel.: +1 859 323 5598
| | - John T McDevitt
- Bioengineering & Chemistry, Rice University, Houston, TX, USA
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Thompson JA, Bau HH. Microfluidic, bead-based assay: Theory and experiments. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:228-36. [PMID: 19766545 PMCID: PMC2818129 DOI: 10.1016/j.jchromb.2009.08.050] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Revised: 08/28/2009] [Accepted: 08/31/2009] [Indexed: 11/19/2022]
Abstract
Microbeads are frequently used as a solid support for biomolecules such as proteins and nucleic acids in heterogeneous microfluidic assays. However, relatively few studies investigate the binding kinetics on modified bead surfaces in a microfluidics context. In this study, a customized hot embossing technique is used to stamp microwells in a thin plastic substrate where streptavidin-coated agarose beads are selectively placed and subsequently immobilized within a conduit. Biotinylated quantum dots are used as a label to monitor target analyte binding to the bead's surface. Three-dimensional finite element simulations are carried out to model the binding kinetics on the bead's surface. The model accounts for surface exclusion effects resulting from a single quantum dot occluding multiple receptor sites. The theoretical predictions are compared and favorably agree with experimental observations. The theoretical simulations provide a useful tool to predict how varying parameters affect microbead reaction kinetics and sensor performance. This study enhances our understanding of bead-based microfluidic assays and provides a design tool for developers of point-of-care, lab-on-chip devices for medical diagnosis, food and water quality inspection, and environmental monitoring.
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Affiliation(s)
- Jason A. Thompson
- Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Haim H. Bau
- Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104, USA
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44
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Floriano PN, Christodoulides N, Miller CS, Ebersole JL, Spertus J, Rose BG, Kinane DF, Novak MJ, Steinhubl S, Acosta S, Mohanty S, Dharshan P, Yeh CK, Redding S, Furmaga W, McDevitt JT. Use of saliva-based nano-biochip tests for acute myocardial infarction at the point of care: a feasibility study. Clin Chem 2009; 55:1530-8. [PMID: 19556448 DOI: 10.1373/clinchem.2008.117713] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND For adults with chest pain, the electrocardiogram (ECG) and measures of serum biomarkers are used to screen and diagnose myocardial necrosis. These measurements require time that can delay therapy and affect prognosis. Our objective was to investigate the feasibility and utility of saliva as an alternative diagnostic fluid for identifying biomarkers of acute myocardial infarction (AMI). METHODS We used Luminex and lab-on-a-chip methods to assay 21 proteins in serum and unstimulated whole saliva procured from 41 AMI patients within 48 h of chest pain onset and from 43 apparently healthy controls. Data were analyzed by use of logistic regression and area under curve (AUC) for ROC analysis to evaluate the diagnostic utility of each biomarker, or combinations of biomarkers, in screening for AMI. RESULTS Both established and novel cardiac biomarkers demonstrated significant differences in concentrations between patients with AMI and controls without AMI. The saliva-based biomarker panel of C-reactive protein, myoglobin, and myeloperoxidase exhibited significant diagnostic capability (AUC = 0.85, P < 0.0001) and in conjunction with ECG yielded strong screening capacity for AMI (AUC = 0.96) comparable to that of the panel (brain natriuretic peptide, troponin-I, creatine kinase-MB, myoglobin; AUC = 0.98) and far exceeded the screening capacity of ECG alone (AUC approximately 0.6). En route to translating these findings to clinical practice, we adapted these unstimulated whole saliva tests to a novel lab-on-a-chip platform for proof-of-principle screens for AMI. CONCLUSIONS Complementary to ECG, saliva-based tests within lab-on-a-chip systems may provide a convenient and rapid screening method for cardiac events in prehospital stages for AMI patients.
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Affiliation(s)
- Pierre N Floriano
- Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, TX 78735, USA
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45
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Lee BS, Lee JN, Park JM, Lee JG, Kim S, Cho YK, Ko C. A fully automated immunoassay from whole blood on a disc. LAB ON A CHIP 2009; 9:1548-55. [PMID: 19458861 DOI: 10.1039/b820321k] [Citation(s) in RCA: 191] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
A portable, disc-based, and fully automated enzyme-linked immuno-sorbent assay (ELISA) system is developed to test infectious diseases from whole blood. The innovative laser irradiated ferrowax microvalves and centrifugal microfluidics were utilized for the full integration of microbead-based suspension ELISA assays on a disc starting from whole blood. The concentrations of the antigen and the antibody of Hepatitis B virus (HBV), HBsAg and Anti-HBs respectively, were measured using the lab-on-a-disc (LOD). All the necessary reagents are preloaded on the disc and the total process of the plasma separation, incubation with target specific antigen or antibody coated microbeads, multiple steps of washing, enzyme reaction with substrates, and the absorbance detection could be finished within 30 minutes. Compared to the conventional ELISA, the operation time was dramatically reduced from over 2 hours to less than 30 minutes while the limit of detection was kept similar; e.g. the limit of detection of Anti-HBs tests were 8.6 mIU mL(-1) and 10 mIU mL(-1) for the disc-based and the conventional ELISA respectively.
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Affiliation(s)
- Beom Seok Lee
- Bio & Health Group, Samsung Advanced Institute of Technology, P.O. Box 111, Suwon, 440-600, Korea.
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46
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Yang Z, Liu H, Zong C, Yan F, Ju H. Automated Support-Resolution Strategy for a One-Way Chemiluminescent Multiplex Immunoassay. Anal Chem 2009; 81:5484-9. [DOI: 10.1021/ac900724m] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Zhanjun Yang
- Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), Department of Chemistry, Nanjing University, Nanjing 210093, and Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Hong Liu
- Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), Department of Chemistry, Nanjing University, Nanjing 210093, and Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Chen Zong
- Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), Department of Chemistry, Nanjing University, Nanjing 210093, and Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Feng Yan
- Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), Department of Chemistry, Nanjing University, Nanjing 210093, and Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Huangxian Ju
- Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), Department of Chemistry, Nanjing University, Nanjing 210093, and Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
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47
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Hahn YK, Chang JB, Jin Z, Kim HS, Park JK. Magnetophoretic position detection for multiplexed immunoassay using colored microspheres in a microchannel. Biosens Bioelectron 2009; 24:1870-6. [DOI: 10.1016/j.bios.2008.09.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2008] [Revised: 08/14/2008] [Accepted: 09/11/2008] [Indexed: 11/25/2022]
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48
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Zhao Y, Zhao X, Hu J, Xu M, Zhao W, Sun L, Zhu C, Xu H, Gu Z. Encoded porous beads for label-free multiplex detection of tumor markers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2009; 21:569-72. [PMID: 21161983 DOI: 10.1002/adma.200802339] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Affiliation(s)
- Yuanjin Zhao
- State Key Laboratory of Bioelectronics Southeast University Nanjing 210096 (P.R. China)
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49
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Heyries KA, Blum LJ, Marquette CA. Straightforward protein immobilization using redox-initiated poly(methyl methacrylate) polymerization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:661-664. [PMID: 19105717 DOI: 10.1021/la803597m] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Rigid poly(methyl methacrylate) (PMMA) biochips directly modified with active protein spots were obtained, using a redox-initiated PMMA polymerization process. The protein immobilization mechanism is believed to be a combination of both a covalent binding through transient amino acid radical generation and a direct entrapment of the biomolecules in the PMMA polymer. Three different immunoassays (binding, capture, and sandwich) were performed using the developed system, and really promising limits of detection (160-200pg/mL) were obtained, demonstrating a novel straightforward route to fabricate plastic biochips.
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Affiliation(s)
- Kevin A Heyries
- Laboratoire de Genie Enzymatique et Biomoleculaire, Universite Lyon 1 - CNRS 5246 ICBMS, Bat CPE, 43, bd du 11 novembre 1918, 69622 Villeurbanne, Cedex, France
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YUN W, WANG XY, DONG P, ZHU JK, XU Y, HE PG, FANG YZ. Electrogenerated Chemiluminescence Immunoassay for Human IgG with Electrochemical Polymerization-based Immobilization Method. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2009. [DOI: 10.1016/s1872-2040(08)60077-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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