1
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Martel R, Shen ML, DeCorwin-Martin P, de Araujo LO, Juncker D. Extracellular Vesicle Antibody Microarray for Multiplexed Inner and Outer Protein Analysis. ACS Sens 2022; 7:3817-3828. [PMID: 36515500 PMCID: PMC9791990 DOI: 10.1021/acssensors.2c01750] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Proteins are found both outside and inside of extracellular vesicles (EVs) and govern the properties and functions of EVs, while also constituting a signature of the cell of origin and of biological function and disease. Outer proteins on EVs can be directly bound by antibodies to either enrich EVs, or probe the expression of a protein on EVs, including in a combinatorial manner. However, co-profiling of inner proteins remains challenging. Here, we present the high-throughput, multiplexed analysis of EV inner and outer proteins (EVPio). We describe the optimization of fixation and heat-induced protein epitope retrieval for EVs, along with oligo-barcoded antibodies and branched DNA signal amplification for sensitive, multiplexed, and high-throughput assays. We captured four subpopulations of EVs from colorectal cancer (CRC) cell lines HT29 and SW403 based on EpCAM, CD9, CD63, and CD81 expression, and quantified the co-expression of eight outer [integrins (ITGs) and tetraspanins] and four inner (heat shock, endosomal, and inner leaflet) proteins. The differences in co-expression patterns were consistent with the literature and known biological function. In conclusion, EVPio analysis can simultaneously detect multiple inner and outer proteins in EVs immobilized on a surface, opening the way to extensive combinatorial protein profiles for both discovery and clinical translation.
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Affiliation(s)
- Rosalie Martel
- Biomedical
Engineering Department, McGill University, Montreal, Quebec H3A 2B4, Canada,McGill
Genome Centre, McGill University, Montreal, Quebec H3A 0G1, Canada
| | - Molly L. Shen
- Biomedical
Engineering Department, McGill University, Montreal, Quebec H3A 2B4, Canada,McGill
Genome Centre, McGill University, Montreal, Quebec H3A 0G1, Canada
| | - Philippe DeCorwin-Martin
- Biomedical
Engineering Department, McGill University, Montreal, Quebec H3A 2B4, Canada,McGill
Genome Centre, McGill University, Montreal, Quebec H3A 0G1, Canada
| | - Lorenna Oliveira
Fernandes de Araujo
- Biomedical
Engineering Department, McGill University, Montreal, Quebec H3A 2B4, Canada,McGill
Genome Centre, McGill University, Montreal, Quebec H3A 0G1, Canada
| | - David Juncker
- Biomedical
Engineering Department, McGill University, Montreal, Quebec H3A 2B4, Canada,McGill
Genome Centre, McGill University, Montreal, Quebec H3A 0G1, Canada,
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2
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Rafat N, Zhang H, Rudge J, Kim YN, Peddireddy SP, Das N, Sarkar A. Enhanced Enzymatically Amplified Metallization on Nanostructured Surfaces for Multiplexed Point-of-Care Electrical Detection of COVID-19 Biomarkers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203309. [PMID: 36036173 PMCID: PMC9538889 DOI: 10.1002/smll.202203309] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/27/2022] [Indexed: 06/15/2023]
Abstract
Inexpensive yet sensitive and specific biomarker detection is a critical bottleneck in diagnostics, monitoring, and surveillance of infectious diseases such as COVID-19. Multiplexed detection of several biomarkers can achieve wider diagnostic applicability, accuracy, and ease-of-use, while reducing cost. Current biomarker detection methods often use enzyme-linked immunosorbent assays (ELISA) with optical detection which offers high sensitivity and specificity. However, this is complex, expensive, and limited to detecting only a single analyte at a time. Here, it is found that biomarker-bound enzyme-labeled probes act synergistically with nanostructured catalytic surfaces and can be used to selectively reduce a soluble silver substrate to generate highly dense and conductive, localized surface silver metallization on microelectrode arrays. This enables a sensitive and quantitative, simple, direct electronic readout of biomarker binding without the use of any intermediate optics. Furthermore, the localized and dry-phase stable nature of the metallization enables multiplexed electronic measurement of several biomarkers from a single drop (<10 µL) of sample on a microchip.This method is applied for the multiplexed point-of-care (POC) quantitative detection of multiple COVID-19 antigen-specific antibodies. Combining a simple microchip and an inexpensive, cellphone-interfaced, portable reader, the detection and discrimination of biomarkers of prior infection versus vaccination is demonstrated.
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Affiliation(s)
- Neda Rafat
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, 30332, USA
| | - Hanhao Zhang
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, 30332, USA
| | - Josiah Rudge
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, 30332, USA
| | - Yoo Na Kim
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, 30332, USA
| | - Sai Preetham Peddireddy
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, 30332, USA
| | - Nabojeet Das
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, 30332, USA
| | - Aniruddh Sarkar
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, 30332, USA
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3
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Lohcharoenkal W, Abbas Z, Rojanasakul Y. Advances in Nanotechnology-Based Biosensing of Immunoregulatory Cytokines. BIOSENSORS 2021; 11:364. [PMID: 34677320 PMCID: PMC8533878 DOI: 10.3390/bios11100364] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/22/2021] [Accepted: 09/26/2021] [Indexed: 12/13/2022]
Abstract
Cytokines are a large group of small proteins secreted by immune and non-immune cells in response to external stimuli. Much attention has been given to the application of cytokines' detection in early disease diagnosis/monitoring and therapeutic response assessment. To date, a wide range of assays are available for cytokines detection. However, in specific applications, multiplexed or continuous measurements of cytokines with wearable biosensing devices are highly desirable. For such efforts, various nanomaterials have been extensively investigated due to their extraordinary properties, such as high surface area and controllable particle size and shape, which leads to their tunable optical emission, electrical, and magnetic properties. Different types of nanomaterials such as noble metal, metal oxide, and carbon nanoparticles have been explored for various biosensing applications. Advances in nanomaterial synthesis and device development have led to significant progress in pushing the limit of cytokine detection. This article reviews currently used methods for cytokines detection and new nanotechnology-based biosensors for ultrasensitive cytokine detection.
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Affiliation(s)
| | - Zareen Abbas
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemigården 4, SE-412 96 Gothenburg, Sweden
| | - Yon Rojanasakul
- Department of Pharmaceutical Sciences, West Virginia University, Morgantown, WV 26505, USA
- West Virginia University Cancer Institute, West Virginia University, Morgantown, WV 26505, USA
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4
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Bernotiene E, Bagdonas E, Kirdaite G, Bernotas P, Kalvaityte U, Uzieliene I, Thudium CS, Hannula H, Lorite GS, Dvir-Ginzberg M, Guermazi A, Mobasheri A. Emerging Technologies and Platforms for the Immunodetection of Multiple Biochemical Markers in Osteoarthritis Research and Therapy. Front Med (Lausanne) 2020; 7:572977. [PMID: 33195320 PMCID: PMC7609858 DOI: 10.3389/fmed.2020.572977] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/31/2020] [Indexed: 12/12/2022] Open
Abstract
Biomarkers, especially biochemical markers, are important in osteoarthritis (OA) research, clinical trials, and drug development and have potential for more extensive use in therapeutic monitoring. However, they have not yet had any significant impact on disease diagnosis and follow-up in a clinical context. Nevertheless, the development of immunoassays for the detection and measurement of biochemical markers in OA research and therapy is an active area of research and development. The evaluation of biochemical markers representing low-grade inflammation or extracellular matrix turnover may permit OA prognosis and expedite the development of personalized treatment tailored to fit particular disease severities. However, currently detection methods have failed to overcome specific hurdles such as low biochemical marker concentrations, patient-specific variation, and limited utility of single biochemical markers for definitive characterization of disease status. These challenges require new and innovative approaches for development of detection and quantification systems that incorporate clinically relevant biochemical marker panels. Emerging platforms and technologies that are already on the way to implementation in routine diagnostics and monitoring of other diseases could potentially serve as good technological and strategic examples for better assessment of OA. State-of-the-art technologies such as advanced multiplex assays, enhanced immunoassays, and biosensors ensure simultaneous screening of a range of biochemical marker targets, the expansion of detection limits, low costs, and rapid analysis. This paper explores the implementation of such technologies in OA research and therapy. Application of novel immunoassay-based technologies may shed light on poorly understood mechanisms in disease pathogenesis and lead to the development of clinically relevant biochemical marker panels. More sensitive and specific biochemical marker immunodetection will complement imaging biomarkers and ensure evidence-based comparisons of intervention efficacy. We discuss the challenges hindering the development, testing, and implementation of new OA biochemical marker assays utilizing emerging multiplexing technologies and biosensors.
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Affiliation(s)
- Eiva Bernotiene
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Edvardas Bagdonas
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Gailute Kirdaite
- Department of Experimental, Preventive and Clinical Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Paulius Bernotas
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Ursule Kalvaityte
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Ilona Uzieliene
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | | | - Heidi Hannula
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, Oulu, Finland
| | - Gabriela S. Lorite
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, Oulu, Finland
| | - Mona Dvir-Ginzberg
- Laboratory of Cartilage Biology, Institute of Dental Sciences, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ali Guermazi
- Department of Radiology, Veterans Affairs Boston Healthcare System, Boston University School of Medicine, Boston, MA, United States
| | - Ali Mobasheri
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
- Departments of Orthopedics, Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands
- Centre for Sport, Exercise and Osteoarthritis Versus Arthritis, Queen's Medical Centre, Nottingham, United Kingdom
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5
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Wang X, Gong J, Yuan B, Chen Z, Jiang J. Sensitive and multiplexed detection of antibiotics using a suspension array platform based on silica-agarose hybrid microbeads. JOURNAL OF HAZARDOUS MATERIALS 2019; 373:115-121. [PMID: 30909136 DOI: 10.1016/j.jhazmat.2019.03.081] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 03/02/2019] [Accepted: 03/18/2019] [Indexed: 06/09/2023]
Abstract
A multiplex suspension array detection platform of antibiotics has been developed based on silica-agarose hybrid microbeads (SAHMs). Chloramphenicol (CAP), sulfamethoxazole (SMX), metronidazole (MTZ) and amoxicillin (AMX) were employed as model analytes. The antigens (the antibiotics conjugated with BSA) were immobilized on the surface of four different types of SAHMs. Based on an indirect competition immunoassay, the selected antibiotics are detected through the competition of the specific monoclonal antibodies between the multiple antibiotics and the antigens. Due to high resistance to nonspecific protein absorption of SAHMs, the proposed method exhibited wide linear ranges (0.4˜72.9 ng/mL for CAP, 2.0˜108.5 ng/mL for SMX, 2.6˜142.2 ng/mL for MTZ, 1.0˜63.3 ng/mL for AMX) and low detection limits of 0.09˜0.8 ng/mL. Recoveries for spiked tap water samples were from 82% to 113%, with relative standard deviation lower than 14%, demonstrating the accuracy of the measurements performed with the developed method. This work offered a high-throughput, flexible and accurate tool, which provides a good platform for simultaneous detection of antibiotics.
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Affiliation(s)
- Xuan Wang
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Junhui Gong
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 210009, China.
| | - Beilei Yuan
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Zhaofang Chen
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Juncheng Jiang
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 210009, China
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6
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Sevenler D, Daaboul GG, Ekiz Kanik F, Ünlü NL, Ünlü MS. Digital Microarrays: Single-Molecule Readout with Interferometric Detection of Plasmonic Nanorod Labels. ACS NANO 2018; 12:5880-5887. [PMID: 29756761 DOI: 10.1021/acsnano.8b02036] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
DNA and protein microarrays are a high-throughput technology that allow the simultaneous quantification of tens of thousands of different biomolecular species. The mediocre sensitivity and limited dynamic range of traditional fluorescence microarrays compared to other detection techniques have been the technology's Achilles' heel and prevented their adoption for many biomedical and clinical diagnostic applications. Previous work to enhance the sensitivity of microarray readout to the single-molecule ("digital") regime have either required signal amplifying chemistry or sacrificed throughput, nixing the platform's primary advantages. Here, we report the development of a digital microarray which extends both the sensitivity and dynamic range of microarrays by about 3 orders of magnitude. This technique uses functionalized gold nanorods as single-molecule labels and an interferometric scanner which can rapidly enumerate individual nanorods by imaging them with a 10× objective lens. This approach does not require any chemical signal enhancement such as silver deposition and scans arrays with a throughput similar to commercial fluorescence scanners. By combining single-nanoparticle enumeration and ensemble measurements of spots when the particles are very dense, this system achieves a dynamic range of about 6 orders of magnitude directly from a single scan. As a proof-of-concept digital protein microarray assay, we demonstrated detection of hepatitis B virus surface antigen in buffer with a limit of detection of 3.2 pg/mL. More broadly, the technique's simplicity and high-throughput nature make digital microarrays a flexible platform technology with a wide range of potential applications in biomedical research and clinical diagnostics.
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Affiliation(s)
| | - George G Daaboul
- NanoView Biosciences , Boston , Massachusetts 02215 , United States
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7
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Lu B, Maharbiz MM. Germanium as a scalable sacrificial layer for nanoscale protein patterning. PLoS One 2018; 13:e0195062. [PMID: 29624587 PMCID: PMC5889064 DOI: 10.1371/journal.pone.0195062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 03/15/2018] [Indexed: 11/19/2022] Open
Abstract
We demonstrate the use of germanium (Ge) films as water-soluble features that allow the patterning of proteins onto surfaces with commonly used organic solvents. This technique is scalable for manufacturing and is compatible with nano- and microfabrication processes, including standard lithography. We use Ge as a sacrificial layer to mask and protect areas of the substrate during surface functionalization. Since Ge dissolves in 0.35% hydrogen peroxide (H2O2) in water but not in organic solvents, Ge can be removed after patterning without significantly affecting protein activities. In this paper, we present examples of protein patterning with two different techniques. We show that 50 nm thick Ge layers can be completely removed in 10 min without residues and, importantly, nanoscale resolution and misalignment can be achieved with conventional photolithography equipment. Both biotin and streptavidin maintain ~80% and >50% activity after 10 min and 360 min incubation in 0.35% H2O2, respectively. Lastly, the process can be used to functionalize sidewalls with proteins, a capability of recent interest for cell-cell adhesion studies.
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Affiliation(s)
- Bochao Lu
- UC Berkeley-UCSF Graduate Program in Bioengineering, University of California, Berkeley, CA, United States of America
- * E-mail:
| | - Michel M. Maharbiz
- UC Berkeley-UCSF Graduate Program in Bioengineering, University of California, Berkeley, CA, United States of America
- Electrical Engineering and Computer Science Department, University of California, Berkeley, CA, United States of America
- Chan Zuckerberg Biohub, San Francisco, CA, United States of America
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8
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Hydrogel-based suspension array for biomarker detection using horseradish peroxidase-mediated silver precipitation. Anal Chim Acta 2017; 999:132-138. [PMID: 29254564 DOI: 10.1016/j.aca.2017.10.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 10/18/2017] [Accepted: 10/26/2017] [Indexed: 01/25/2023]
Abstract
Advances in medical diagnostics and personalized therapy require robust, sensitive yet cost-effective diagnostic tools for rapid measurement of biomolecules including proteins in body fluids. State-of-the-art technologies are complex and rely on expensive or custom made detection system, and therefore, cannot be readily adapted for point-of-care (POC) analysis. The development of a novel detection platform, which leverages horseradish peroxidase (HRP)-mediated silver precipitation within antibody immobilized porosity tuned poly (ethylene) glycol diacrylate (PEGDA) hydrogel microparticles with the operational advantages of suspension arrays for sensitive quantification of biomarkers, is described. In this study, vascular endothelial growth factor (VEGF) has been used as a model protein. The silver deposition corresponded to the concentration of VEGF in solution. The detection limit of 5.2 ± 1.0 pg/mL and assay time of 2 h highlights that this assay exceeds the conventional technologies in terms of sensitivity and speed. The practical applicability of the hydrogel microparticle based detection system has been established by demonstrating the ability of the system to quantify the production of VEGF by highly aggressive (MDA-MB-231) and non-aggressive (MCF-7) breast cancer cells. The reliance on simple instrument for quantification of clinically relevant markers bolsters the adaptability of the detection platform/method in POC settings.
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9
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Maharbiz MM. Protein patterning using germanium as a sacrificial layer. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2017; 2017:1865-1868. [PMID: 29060254 DOI: 10.1109/embc.2017.8037210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
With the rise of microfluidic diagnostics, there is a need for more efficient methods of patterning surface-attached moieties, including proteins like antibodies, onto microchannel surfaces. This arises because almost all of the solvents and processes used for surface-attachment chemistries (or their payloads) are incompatible with sacrificial layers usually photoresist during microfabrication, rendering it difficult to easily pattern active chemistry onto a surface in manufacture scale. We present a simple method, based on thin film germanium dissolution, which is compatible with both modern nanolithographic techniques and surface chemistries. Simply, because germanium thin films dissolve readily, controllably and rapidly in water (but not organic solvents), these films can be used to mask and protect areas of the substrate during the attachment of surface chemistries. We demonstrate the process and results using microscale patterns. The resolution and alignment of this method depends on the photolithography tool used; nanoscale patterning is not difficult to achieve. In addition, we show that with non-conformal germanium deposition (e.g. e-beam evaporation), the conjugation of surface chemistry on vertical side walls can be manipulated by controlling the thickness of the deposited germanium layer, opening another dimension for microfluidic devices and cell manipulation research.
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10
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Olanrewaju AO, Ng A, DeCorwin-Martin P, Robillard A, Juncker D. Microfluidic Capillaric Circuit for Rapid and Facile Bacteria Detection. Anal Chem 2017; 89:6846-6853. [DOI: 10.1021/acs.analchem.7b01315] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Ayokunle Oluwafemi Olanrewaju
- Biomedical Engineering Department, McGill University, 3775 rue University, Montreal, QC, H3A 2B4, Canada
- Genome Quebec and
McGill
University Innovation Centre, McGill University, 740 Dr Penfield Avenue, Montreal, QC, H3A 0G1, Canada
| | - Andy Ng
- Biomedical Engineering Department, McGill University, 3775 rue University, Montreal, QC, H3A 2B4, Canada
- Genome Quebec and
McGill
University Innovation Centre, McGill University, 740 Dr Penfield Avenue, Montreal, QC, H3A 0G1, Canada
| | - Philippe DeCorwin-Martin
- Biomedical Engineering Department, McGill University, 3775 rue University, Montreal, QC, H3A 2B4, Canada
- Genome Quebec and
McGill
University Innovation Centre, McGill University, 740 Dr Penfield Avenue, Montreal, QC, H3A 0G1, Canada
| | - Alessandra Robillard
- Biomedical Engineering Department, McGill University, 3775 rue University, Montreal, QC, H3A 2B4, Canada
- Genome Quebec and
McGill
University Innovation Centre, McGill University, 740 Dr Penfield Avenue, Montreal, QC, H3A 0G1, Canada
| | - David Juncker
- Biomedical Engineering Department, McGill University, 3775 rue University, Montreal, QC, H3A 2B4, Canada
- Genome Quebec and
McGill
University Innovation Centre, McGill University, 740 Dr Penfield Avenue, Montreal, QC, H3A 0G1, Canada
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11
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Emerging Cytokine Biosensors with Optical Detection Modalities and Nanomaterial-Enabled Signal Enhancement. SENSORS 2017; 17:s17020428. [PMID: 28241443 PMCID: PMC5335944 DOI: 10.3390/s17020428] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 02/12/2017] [Accepted: 02/18/2017] [Indexed: 12/17/2022]
Abstract
Protein biomarkers, especially cytokines, play a pivotal role in the diagnosis and treatment of a wide spectrum of diseases. Therefore, a critical need for advanced cytokine sensors has been rapidly growing and will continue to expand to promote clinical testing, new biomarker development, and disease studies. In particular, sensors employing transduction principles of various optical modalities have emerged as the most common means of detection. In typical cytokine assays which are based on the binding affinities between the analytes of cytokines and their specific antibodies, optical schemes represent the most widely used mechanisms, with some serving as the gold standard against which all existing and new sensors are benchmarked. With recent advancements in nanoscience and nanotechnology, many of the recently emerging technologies for cytokine detection exploit various forms of nanomaterials for improved sensing capabilities. Nanomaterials have been demonstrated to exhibit exceptional optical properties unique to their reduced dimensionality. Novel sensing approaches based on the newly identified properties of nanomaterials have shown drastically improved performances in both the qualitative and quantitative analyses of cytokines. This article brings together the fundamentals in the literature that are central to different optical modalities developed for cytokine detection. Recent advancements in the applications of novel technologies are also discussed in terms of those that enable highly sensitive and multiplexed cytokine quantification spanning a wide dynamic range. For each highlighted optical technique, its current detection capabilities as well as associated challenges are discussed. Lastly, an outlook for nanomaterial-based cytokine sensors is provided from the perspective of optimizing the technologies for sensitivity and multiplexity as well as promoting widespread adaptations of the emerging optical techniques by lowering high thresholds currently present in the new approaches.
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12
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Pla-Roca M, Altay G, Giralt X, Casals A, Samitier J. Design and development of a microarray processing station (MPS) for automated miniaturized immunoassays. Biomed Microdevices 2016; 18:64. [PMID: 27405464 DOI: 10.1007/s10544-016-0087-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Here we describe the design and evaluation of a fluidic device for the automatic processing of microarrays, called microarray processing station or MPS. The microarray processing station once installed on a commercial microarrayer allows automating the washing, and drying steps, which are often performed manually. The substrate where the assay occurs remains on place during the microarray printing, incubation and processing steps, therefore the addressing of nL volumes of the distinct immunoassay reagents such as capture and detection antibodies and samples can be performed on the same coordinate of the substrate with a perfect alignment without requiring any additional mechanical or optical re-alignment methods. This allows the performance of independent immunoassays in a single microarray spot.
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Affiliation(s)
- Mateu Pla-Roca
- Nanobioengineering Laboratory, Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac, 10-12, 08028, Barcelona, Spain.
| | - Gizem Altay
- Nanobioengineering Laboratory, Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac, 10-12, 08028, Barcelona, Spain
| | - Xavier Giralt
- Robotics Laboratory, Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac, 10-12, 08028, Barcelona, Spain
| | - Alícia Casals
- Robotics Laboratory, Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac, 10-12, 08028, Barcelona, Spain.,Center of Research in Biomedical Engineering, Universitat Politècnica de Catalunya, Jordi Girona, 1-3, 08034, Barcelona, Spain
| | - Josep Samitier
- Nanobioengineering Laboratory, Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac, 10-12, 08028, Barcelona, Spain.,The Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Maria de Luna, 11, 50018, Zaragoza, Spain.,Department of Engineering: Electronics, University of Barcelona (UB), Martí i Franquès, 1, 08028, Barcelona, Spain
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13
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Bedatty Fernandes FC, Patil AV, Bueno PR, Davis JJ. Optimized Diagnostic Assays Based on Redox Tagged Bioreceptive Interfaces. Anal Chem 2015; 87:12137-44. [DOI: 10.1021/acs.analchem.5b02976] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Flavio C. Bedatty Fernandes
- Institute
of Chemistry, Physical Chemistry Department, Nanobionics group, Univ. Estadual Paulista (São Paulo State University, UNESP), CP 355, 14800-900, Araraquara, São Paulo, Brazil
| | - Amol V. Patil
- Department
of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ, United Kingdom
| | - Paulo R. Bueno
- Institute
of Chemistry, Physical Chemistry Department, Nanobionics group, Univ. Estadual Paulista (São Paulo State University, UNESP), CP 355, 14800-900, Araraquara, São Paulo, Brazil
| | - Jason J. Davis
- Department
of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ, United Kingdom
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