1
|
Tao R, Reboud J, Torun H, McHale G, Dodd LE, Wu Q, Tao K, Yang X, Luo JT, Todryk S, Fu Y. Integrating microfluidics and biosensing on a single flexible acoustic device using hybrid modes. LAB ON A CHIP 2020; 20:1002-1011. [PMID: 32026889 DOI: 10.1039/c9lc01189g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Integration of microfluidics and biosensing functionalities on a single device holds promise in continuous health monitoring and disease diagnosis for point-of-care applications. However, the required functions of fluid handling and biomolecular sensing usually arise from different actuation mechanisms. In this work, we demonstrate that a single acoustofluidic device, based on a flexible thin film platform, is able to generate hybrid wave modes, which can be used for fluidic actuation (Lamb waves) and biosensing (thickness shear waves). On this integrated platform, we show multiple and sequential functions of mixing, transport and disposal of liquid volumes using Lamb waves, whilst the thickness bulk shear waves allow us to sense the chemotherapeutic Imatinib, using an aptamer-based strategy, as would be required for therapy monitoring. Upon binding, the conformation of the aptamer results in a change in coupled mass, which has been detected. This platform architecture has the potential to generate a wide range of simple sample-to-answer biosensing acoustofluidic devices.
Collapse
Affiliation(s)
- Ran Tao
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, 518060, Shenzhen, China. and Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK.
| | - Julien Reboud
- Division of Biomedical Engineering, James Watt School of Engineering, University of Glasgow, Glasgow, G12 8LT, UK
| | - Hamdi Torun
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK.
| | - Glen McHale
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK.
| | - Linzi E Dodd
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK.
| | - Qiang Wu
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK.
| | - Kai Tao
- Ministry of Education Key Laboratory of Micro and Nano Systems for Aerospace, Northwestern Polytechnical University, Xi'an, 710072, PR China
| | - Xin Yang
- Department of Electrical and Electronic Engineering, School of Engineering, Cardiff University, CF24 3AA UK
| | - Jing Ting Luo
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, 518060, Shenzhen, China.
| | - Stephen Todryk
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| | - Yongqing Fu
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK.
| |
Collapse
|
2
|
Sotnikov DV, Zherdev AV, Dzantiev BB. Mathematical Modeling of Bioassays. BIOCHEMISTRY (MOSCOW) 2018. [PMID: 29523069 DOI: 10.1134/s0006297917130119] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The high affinity and specificity of biological receptors determine the demand for and the intensive development of analytical systems based on use of these receptors. Therefore, theoretical concepts of the mechanisms of these systems, quantitative parameters of their reactions, and relationships between their characteristics and ligand-receptor interactions have become extremely important. Many mathematical models describing different bioassay formats have been proposed. However, there is almost no information on the comparative characteristics of these models, their assumptions, and predictive insights. In this review we suggested a set of criteria to classify various bioassays and reviewed classical and contemporary publications on these bioassays with special emphasis on immunochemical analysis systems as the most common and in-demand techniques. The possibilities of analytical and numerical modeling are discussed, as well as estimations of the minimum concentrations that may be detected in bioassays and recommendations for the choice of assay conditions.
Collapse
Affiliation(s)
- D V Sotnikov
- Bach Institute of Biochemistry, Research Center for Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia.
| | | | | |
Collapse
|
3
|
On the acoustic wave sensor response to immortalized hypothalamic neurons at the device-liquid interface. SENSING AND BIO-SENSING RESEARCH 2016. [DOI: 10.1016/j.sbsr.2016.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
4
|
Design and characterisation of a thin-film electrode array with shared reference/counter electrodes for electrochemical detection. Biosens Bioelectron 2014; 57:85-90. [DOI: 10.1016/j.bios.2014.01.048] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 01/16/2014] [Accepted: 01/23/2014] [Indexed: 11/21/2022]
|
5
|
Rapid detection of human immunodeficiency virus types 1 and 2 by use of an improved piezoelectric biosensor. J Clin Microbiol 2013; 51:1685-91. [PMID: 23515541 DOI: 10.1128/jcm.03041-12] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Disasters can create situations in which blood donations can save lives. However, in emergency situations and when resources are depleted, on-site blood donations require the rapid and accurate detection of blood-borne pathogens, including human immunodeficiency virus types 1 and 2 (HIV-1 and HIV-2). Techniques such as PCR and antibody capture by an enzyme-linked immunosorbent assay (ELISA) for HIV-1 and HIV-2 are precise but time-consuming and require sophisticated equipment that is not compatible with emergency point-of-care requirements. We describe here a prototype biosensor based on piezoelectric materials functionalized with specific antibodies against HIV-1 and HIV-2. We show the rapid and accurate detection of HIV-1 and HIV-2 in both simple and complex solutions, including human serum, and in the presence of a cross-confounding virus. We report detection limits of 12 50% tissue culture infective doses (TCID50s) for HIV-1 and 87 TCID50s for HIV-2. The accuracy, precision of measurements, and operation of the prototype biosensor compared favorably to those for nucleic acid amplification. We conclude that the biosensor has significant promise as a successful point-of-care diagnostic device for use in emergency field applications requiring rapid and reliable testing for blood-borne pathogens.
Collapse
|
6
|
Uludag Y, Tothill IE. Cancer Biomarker Detection in Serum Samples Using Surface Plasmon Resonance and Quartz Crystal Microbalance Sensors with Nanoparticle Signal Amplification. Anal Chem 2012; 84:5898-904. [DOI: 10.1021/ac300278p] [Citation(s) in RCA: 221] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yildiz Uludag
- Cranfield Health, Cranfield University, Cranfield, Bedfordshire MK43
0AL, U.K
- UEKAE−BILGEM, The Scientific and Technological Research Council of Turkey, 41470 Gebze/Kocaeli, Turkey
| | - Ibtisam E. Tothill
- Cranfield Health, Cranfield University, Cranfield, Bedfordshire MK43
0AL, U.K
| |
Collapse
|
7
|
Meulenberg EP. Immunochemical methods for ochratoxin A detection: a review. Toxins (Basel) 2012; 4:244-66. [PMID: 22606375 PMCID: PMC3347002 DOI: 10.3390/toxins4040244] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Revised: 03/30/2012] [Accepted: 04/05/2012] [Indexed: 11/25/2022] Open
Abstract
The safety of food and feed depends to a great deal on quality control. Numerous compounds and organisms may contaminate food and feed commodities and thus pose a health risk for consumers. The compound of interest in this review is ochratoxin A (OTA), a secondary metabolite of the fungi Aspergillus and Penicillium. Due to its adverse health effects, detection and quantification are of utmost importance. Quality control of food and feed requires extraction and analysis, including TLC, HPLC, MS, and immunochemical methods. Each of these methods has its advantages and disadvantages. However, with regard to costs and rapidity, immunochemical methods have gained much interest in the last decade. In this review an introduction to immunochemistry and assay design will be given to elucidate the principles. Further, the application of the various formats to the detection and quantification of ochratoxin will be described, including the use of commercially available kits.
Collapse
|
8
|
Sheikh S, Blaszykowski C, Thompson M. Label-free detection of HIV-2 antibodies in serum with an ultra-high frequency acoustic wave sensor. Talanta 2011; 85:816-9. [PMID: 21645780 DOI: 10.1016/j.talanta.2011.04.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 03/31/2011] [Accepted: 04/04/2011] [Indexed: 11/24/2022]
Abstract
Herein is described a label-free immunosensor dedicated to the detection of HIV-2. The biosensor platform is constructed as a mixed self-assembled monolayer-coated quartz wafer onto which HIV-2 immunodominant epitopes are immobilized. The biosensing properties, in terms of specific vs. non-specific antigen-antibody interactions, are evaluated with the electromagnetic piezoelectric acoustic sensor (EMPAS) using equimolar serum solutions of HIV-2 or HIV-1 monoclonal antibodies, respectively. This immunosensor constitutes the first real-world application of the EMPAS technology in the bioanalytical field.
Collapse
Affiliation(s)
- Sonia Sheikh
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S 3H6
| | | | | |
Collapse
|
9
|
Ellis JS, Thompson M. Viscoelastic modeling with interfacial slip of a protein monolayer electrode-adsorbed on an acoustic wave biosensor. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:11558-11567. [PMID: 20394431 DOI: 10.1021/la100798c] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Transverse-shear mode acoustic wave devices have been used as real-time, label-free detectors of conformational shifts in biomolecules on surfaces. However, material changes in the biochemical monolayers and coupling between the substrate and the surrounding liquid make it difficult to isolate the desired signal, so an understanding of these phenomena is required. An important step in this understanding is knowledge of the material properties of the linker layer that attaches a biochemically selective molecule to the gold surface, in our case, neutravidin. With the goal of obtaining material properties for a neutravidin monolayer, for use in future studies, neutravidin adsorption to the gold surface of an acoustic wave biosensor is described as a viscoelastic monolayer using one-dimensional modeling. Neutravidin is described as forming hydrated, viscoelastic monolayers, and slip is allowed at all interfaces. An impedance model is numerically fit to experimental values using a two-parameter minimization algorithm and values for the shear modulus of the neutravidin monolayer, in agreement with literature values for similar proteins, are obtained. Slip is found on the electrode surface prior to neutravidin adsorption. These results will be used for future modeling studies involving this protein as a linker protein.
Collapse
Affiliation(s)
- Jonathan S Ellis
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | | |
Collapse
|
10
|
Rich RL, Myszka DG. Grading the commercial optical biosensor literature-Class of 2008: 'The Mighty Binders'. J Mol Recognit 2010; 23:1-64. [PMID: 20017116 DOI: 10.1002/jmr.1004] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Optical biosensor technology continues to be the method of choice for label-free, real-time interaction analysis. But when it comes to improving the quality of the biosensor literature, education should be fundamental. Of the 1413 articles published in 2008, less than 30% would pass the requirements for high-school chemistry. To teach by example, we spotlight 10 papers that illustrate how to implement the technology properly. Then we grade every paper published in 2008 on a scale from A to F and outline what features make a biosensor article fabulous, middling or abysmal. To help improve the quality of published data, we focus on a few experimental, analysis and presentation mistakes that are alarmingly common. With the literature as a guide, we want to ensure that no user is left behind.
Collapse
Affiliation(s)
- Rebecca L Rich
- Center for Biomolecular Interaction Analysis, University of Utah, Salt Lake City, UT 84132, USA
| | | |
Collapse
|
11
|
Sheikh S, Sheng JCC, Blaszykowski C, Thompson M. New oligoethylene glycol linkers for the surface modification of an ultra-high frequency acoustic wave biosensor. Chem Sci 2010. [DOI: 10.1039/c0sc00158a] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
|
12
|
Tercero N, Wang K, Gong P, Levicky R. Morpholino monolayers: preparation and label-free DNA analysis by surface hybridization. J Am Chem Soc 2009; 131:4953-61. [PMID: 19296583 PMCID: PMC2730437 DOI: 10.1021/ja810051q] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Surface hybridization, a reaction in which nucleic acid molecules in solution react with nucleic acid partners immobilized on a surface, is widely practiced in life science research. In these applications the immobilized partner, or "probe", is typically single-stranded DNA. Because DNA is strongly charged, high salt conditions are required to enable binding between analyte nucleic acids ("targets") in solution and the DNA probes. High salt, however, compromises prospects for label-free monitoring or control of the hybridization reaction through surface electric fields; it also stabilizes secondary structure in target species that can interfere with probe-target recognition. In this work, initial steps toward addressing these challenges are taken by introducing morpholinos, a class of uncharged DNA analogues, for surface-hybridization applications. Monolayers of morpholino probes on gold supports can be fabricated with methods similar to those employed with DNA and are shown to hybridize efficiently and sequence-specifically with target strands. Hybridization-induced changes in the interfacial charge organization are analyzed with electrochemical methods and compared for morpholino and DNA probe monolayers. Molecular mechanisms connecting surface hybridization state to the interfacial capacitance are identified and interpreted through comparison to numerical Poisson-Boltzmann calculations. Interestingly, positive as well as negative capacitive responses (contrast inversion) to hybridization are possible, depending on surface populations of mobile ions as controlled by the applied potential. Quantitative comparison of surface capacitance with target coverage (targets/area) reveals a nearly linear relationship and demonstrates sensitivities (limits of quantification) in the picogram per square millimeter range.
Collapse
Affiliation(s)
- Napoleon Tercero
- Dept. of Chemical & Biological Engineering, Polytechnic Institute of New York University, Brooklyn, NY 11201
- Dept. of Chemical Engineering, Columbia University, New York, NY 10027
| | - Kang Wang
- Dept. of Chemical & Biological Engineering, Polytechnic Institute of New York University, Brooklyn, NY 11201
| | - Ping Gong
- Dept. of Chemical Engineering, Columbia University, New York, NY 10027
| | - Rastislav Levicky
- Dept. of Chemical & Biological Engineering, Polytechnic Institute of New York University, Brooklyn, NY 11201
| |
Collapse
|
13
|
Abstract
Abstract
Collapse
|