1
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Gandhi S, Shaulli X, Fock J, Scheffold F, Marie R. IgG and IgM differentiation in a particle-based agglutination assay by control over antigen surface density. APL Bioeng 2024; 8:026124. [PMID: 38894961 PMCID: PMC11184967 DOI: 10.1063/5.0196224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
Point-of-care (POC) testing offers fast and on-site diagnostics and can be crucial against many infectious diseases and in screening. One remaining challenge in serological POC testing is the quantification of immunoglobulin G (IgG) and immunoglobulin M (IgM). Quantification of IgG/IgM can be important to evaluate immunity and to discriminate recent infections from past infections and primary infections from secondary infections. POC tests such as lateral flow immunoassays allow IgG and IgM differentiation; however, a remaining limitation is their incapacity to provide quantitative results. In this work, we show how samples containing IgG or IgM can be distinguished in a nanoparticle-based agglutination biosensing assay by tuning the density of antigens on the nanoparticles' surface. We employ direct STochastic Optical Reconstruction Microscopy to quantify the accessible SARS-CoV-2 trimeric spike proteins conjugated to magnetic nanoparticles at a single-particle level and gain insight into the protein distribution provided by the conjugation procedure. Furthermore, we measure the anti-SARS-CoV-2 IgG/IgM induced agglutination using an optomagnetic readout principle. We show that particles with high antigen density have a relatively higher sensitivity toward IgM compared to IgG, whereas low antigen density provides a relatively higher sensitivity to IgG. The finding paves the way for its implementation for other agglutination-based serology tests, allowing for more accurate disease diagnosis.
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Affiliation(s)
- Shanil Gandhi
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Xhorxhina Shaulli
- Department of Physics, University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
| | | | - Frank Scheffold
- Department of Physics, University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
| | - Rodolphe Marie
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
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2
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Sanz-de Diego E, Aires A, Palacios-Alonso P, Cabrera D, Silvestri N, Vequi-Suplicy CC, Artés-Ibáñez EJ, Requejo-Isidro J, Delgado-Buscalioni R, Pellegrino T, Cortajarena AL, Terán FJ. Multiparametric modulation of magnetic transduction for biomolecular sensing in liquids. NANOSCALE 2024; 16:4082-4094. [PMID: 38348700 DOI: 10.1039/d3nr06489a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
The recent COVID19 pandemic has remarkably boosted the research on in vitro diagnosis assays to detect biomarkers in biological fluids. Specificity and sensitivity are mandatory for diagnostic kits aiming to reach clinical stages. Whilst the modulation of sensitivity can significantly improve the detection of biomarkers in liquids, this has been scarcely explored. Here, we report on the proof of concept and parametrization of a novel biosensing methodology based on the changes of AC magnetic hysteresis areas observed for magnetic nanoparticles following biomolecular recognition in liquids. Several parameters are shown to significantly modulate the transducing capacity of magnetic nanoparticles to detect analytes dispersed in saline buffer at concentrations of clinical relevance. Magnetic nanoparticles were bio-conjugated with an engineered recognition peptide as a receptor. Analytes are engineered tetratricopeptide binding domains fused to the fluorescent protein whose dimerization state allows mono- or divalent variants. Our results unveil that the number of receptors per particle, analyte valency and concentration, nanoparticle composition and concentration, and field conditions play a key role in the formation of assemblies driven by biomolecular recognition. Consequently, all these parameters modulate the nanoparticle transduction capacity. Our study provides essential insights into the potential of AC magnetometry for customizing biomarker detection in liquids.
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Affiliation(s)
- Elena Sanz-de Diego
- iMdea Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain.
| | - Antonio Aires
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014, Donostia-San Sebastián, Spain.
| | | | - David Cabrera
- iMdea Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain.
- School of Pharmacy and Bioengineering, Keele University, Guy Hilton Research Centre, Thurnburrow Drive, ST4 7QB, Stoke on Trent, UK
| | | | | | - Emilio J Artés-Ibáñez
- iMdea Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain.
- Nanotech Solutions, 40150 Villacastín, Spain
| | - José Requejo-Isidro
- Centro Nacional de Biotecnologia (CSIC), 28049 Madrid, Spain
- Nanobiotecnología (iMdea-Nanociencia), Unidad Asociada al Centro Nacional de Biotecnología (CSIC), 28049 Madrid, Spain
| | | | | | - Aitziber L Cortajarena
- iMdea Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain.
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014, Donostia-San Sebastián, Spain.
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Francisco J Terán
- iMdea Nanociencia, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain.
- Nanobiotecnología (iMdea-Nanociencia), Unidad Asociada al Centro Nacional de Biotecnología (CSIC), 28049 Madrid, Spain
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3
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Palacios-Alonso P, Sanz-de-Diego E, Peláez RP, Cortajarena AL, Teran FJ, Delgado-Buscalioni R. Predicting the size and morphology of nanoparticle clusters driven by biomolecular recognition. SOFT MATTER 2023; 19:8929-8944. [PMID: 37530392 DOI: 10.1039/d3sm00536d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Nanoparticle aggregation is a driving principle of innovative materials and biosensing methodologies, improving transduction capabilities displayed by optical, electrical or magnetic measurements. This aggregation can be driven by the biomolecular recognition between target biomolecules (analytes) and receptors bound onto nanoparticle surface. Despite theoretical advances on modelling the entropic interaction in similar systems, predictions of the fractal morphologies of the nanoclusters of bioconjugated nanoparticles are lacking. The morphology of resulting nanoclusters is sensitive to the location, size, flexibility, average number of receptors per particle f̄, and the analyte-particle concentration ratio. Here we considered bioconjugated iron oxide nanoparticles (IONPs) where bonds are mediated by a divalent protein that binds two receptors attached onto different IONPs. We developed a protocol combining analytical expressions for receptors and linker distributions, and Brownian dynamics simulations for bond formation, and validated it against experiments. As more bonds become available (e.g., by adding analytes), the aggregation deviates from the ideal Bethe's lattice scenario due to multivalence, loop formation, and steric hindrance. Generalizing Bethe's lattice theory with a (not-integer) effective functionality feff leads to analytical expressions for the cluster size distributions in excellent agreement with simulations. At high analyte concentration steric impediment imposes an accessible limit value facc to feff, which is bounded by facc < feff < f̄. A transition to gel phase, is correctly captured by the derived theory. Our findings offer new insights into quantifying analyte amounts by assessing nanocluster size, and predicting nanoassembly morphologies accurately is a first step towards understanding variations of physical properties in clusters formed after biomolecular recognition.
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Affiliation(s)
- Pablo Palacios-Alonso
- iMdea Nanociencia, Campus Universitario de Cantoblanco, 28049 Madrid, Spain
- Condensed Matter Physics Center, IFIMAC, Spain
| | | | - Raúl P Peláez
- Dpto. Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
| | - A L Cortajarena
- CIC biomaGUNE-BRTA, 20014, Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - F J Teran
- iMdea Nanociencia, Campus Universitario de Cantoblanco, 28049 Madrid, Spain
- Nanobiotecnología (iMdea-Nanociencia), Unidad Asociada al Centro Nacional de Biotecnología (CSIC), 28049 Madrid, Spain
| | - Rafael Delgado-Buscalioni
- Dpto. Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
- Condensed Matter Physics Center, IFIMAC, Spain
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4
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Suwa M, Tsukahara S, Watarai H. Applications of magnetic and electromagnetic forces in micro-analytical systems. LAB ON A CHIP 2023; 23:1097-1127. [PMID: 36636900 DOI: 10.1039/d2lc00702a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Novel applications of magnetic fields in analytical chemistry have become a remarkable trend in the last two decades. Various magnetic forces have been employed for the migration, orientation, manipulation, and trapping of microparticles, and new analytical platforms for separating and detecting molecules have been proposed. Magnetic materials such as functional magnetic nanoparticles, magnetic nanocomposites, and specially designed magnetic solids and liquids have also been developed for analytical purposes. Numerous attractive applications of magnetic and electromagnetic forces on magnetic and non-magnetic materials have been studied, but fundamental studies to understand the working principles of magnetic forces have been challenging. These studies will form a new field of magneto-analytical science, which should be developed as an interdisciplinary field. In this review, essential pioneering works and recent attractive developments are presented.
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Affiliation(s)
- M Suwa
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
| | - S Tsukahara
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
| | - H Watarai
- R3 Institute for Newly-Emerging Science Design, Osaka University, Toyonaka, Osaka 560-8531, Japan.
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5
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Sánchez Martín D, Oropesa-Nuñez R, Zardán Gómez de la Torre T. Rolling Circle Amplification on a Bead: Improving the Detection Time for a Magnetic Bioassay. ACS OMEGA 2023; 8:4391-4397. [PMID: 36743032 PMCID: PMC9893745 DOI: 10.1021/acsomega.2c07992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/10/2023] [Indexed: 06/18/2023]
Abstract
Detection of pathogens has become increasingly important, especially in the face of outbreaks and epidemics all over the world. Nucleic acid detection techniques provide a solid base to detect and identify pathogens. In recent years, magnetic sensors and magnetic labels have become of more interest due to their simplicity of use, low cost, and versatility. In this work, we have used the isothermal DNA amplification technique of rolling circle amplification (RCA) in combination with oligo-functionalized magnetic nanoparticles. Detection of RCA products takes place through specific binding between magnetic nanoparticles and RCA products. Upon binding, the relaxation frequency of the nanoparticle changes. This change was measured using an AC susceptometer. We showcase that the RCA time can be reduced for a quicker assay when performing the RCA on the surface of micrometer-sized beads, which consequently increases the hydrodynamic volume of the RCA products. This, in turn, increases the Brownian relaxation frequency shift of the nanoparticles upon binding. We performed optimization work to determine the ideal quantity of micrometer-sized particles, oligo-functionalized nanoparticles, and the amplification time of the RCA. We show that the detection of 0.75 fmol of preamplification synthetic target is possible with only 20 min of amplification time. Finally, we showcase the high specificity of the assay, as the functionalized nanoparticles are unable to bind to amplified DNA that does not match their labels. Overall, this paves the way for a simple bioassay that can be used without expensive laboratory equipment for detection of pathogens in outbreak settings and clinics around the world.
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Affiliation(s)
- Darío Sánchez Martín
- Department
of Material Sciences and Engineering, Division of Nanotechnology and
Functional Materials, Ångström Laboratory, Uppsala University, Box 534, SE-751 21 Uppsala, Sweden
| | - Reinier Oropesa-Nuñez
- Department
of Material Sciences and Engineering, Division of Solid-State Physics,
Ångström Laboratory, Uppsala
University, Box 534, SE-751
21 Uppsala, Sweden
| | - Teresa Zardán Gómez de la Torre
- Department
of Material Sciences and Engineering, Division of Nanotechnology and
Functional Materials, Ångström Laboratory, Uppsala University, Box 534, SE-751 21 Uppsala, Sweden
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6
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Park JW. Principles and Applications of Loop-Mediated Isothermal Amplification to Point-of-Care Tests. BIOSENSORS 2022; 12:bios12100857. [PMID: 36290994 PMCID: PMC9599884 DOI: 10.3390/bios12100857] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 09/30/2022] [Accepted: 10/08/2022] [Indexed: 05/03/2023]
Abstract
For the identification of nucleic acids, which are important biomarkers of pathogen-mediated diseases and viruses, the gold standard for NA-based diagnostic applications is polymerase chain reaction (PCR). However, the requirements of PCR limit its application as a rapid point-of-care diagnostic technique. To address the challenges associated with regular PCR, many isothermal amplification methods have been developed to accurately detect NAs. Isothermal amplification methods enable NA amplification without changes in temperature with simple devices, as well as faster amplification times compared with regular PCR. Of the isothermal amplifications, loop-mediated isothermal amplification (LAMP) is the most studied because it amplifies NAs rapidly and specifically. This review describes the principles of LAMP, the methods used to monitor the process of LAMP, and examples of biosensors that detect the amplicons of LAMP. In addition, current trends in the application of LAMP to smartphones and self-diagnosis systems for point-of-care tests are also discussed.
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Affiliation(s)
- Jee-Woong Park
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (K-MEDI Hub), Daegu 41061, Korea
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7
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Huang Z, Li J, Zhong H, Tian B. Nucleic acid amplification strategies for volume-amplified magnetic nanoparticle detection assay. Front Bioeng Biotechnol 2022; 10:939807. [PMID: 36032733 PMCID: PMC9399362 DOI: 10.3389/fbioe.2022.939807] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/11/2022] [Indexed: 12/26/2022] Open
Abstract
Magnetic nanoparticles (MNPs) can be quantified based on their magnetic relaxation properties by volumetric magnetic biosensing strategies, for example, alternating current susceptometry. Volume-amplified magnetic nanoparticle detection assays (VAMNDAs) employ analyte-initiated nucleic acid amplification (NAA) reactions to increase the hydrodynamic size of MNP labels for magnetic sensing, achieving attomolar to picomolar detection limits. VAMNDAs offer rapid and user-friendly analysis of nucleic acid targets but present inherence defects determined by the chosen amplification reactions and sensing principles. In this mini-review, we summarize more than 30 VAMNDA publications and classify their detection models for NAA-induced MNP size increases, highlighting the performances of different linear, cascade, and exponential NAA strategies. For some NAA strategies that have not yet been reported in VAMNDA, we predicted their performances based on the reaction kinetics and feasible detection models. Finally, challenges and perspectives are given, which may hopefully inspire and guide future VAMNDA studies.
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8
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Suwa M, Uotani A, Tojo Y, Onodera R, Tsukahara S. Orientational Dynamics of Magnetic Iron Oxide Nanoparticles in a Hydrogel: Observation by Magnetic Linear Dichroism under Oscillating Field. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:9708-9719. [PMID: 35880857 DOI: 10.1021/acs.langmuir.2c01593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
For the success of biomedical applications of magnetic iron oxide nanoparticles (MION), such as magnetic hyperthermia and magnetic particle imaging, it is essential to understand the orientational dynamics of MION in a complex fluid under an alternating field. Here, using the magnetic linear dichroism (MLD) measurement, we directly observed the orientational behavior of MION in a hydrogel under a damped oscillating magnetic field (DOMF) of 33 kHz in frequency. Hydrophobically modified ethoxylated urethane (HEUR) is examined as the network polymer because the mesh size of the network is controllable with its concentration. We used two MIONs: a bare MION (MION1) and a MION coated with an amphiphilic polymer (MION2). Where the mesh size of the gel network is larger than the particle's hydrodynamic diameter, MION1 in the hydrogel rotates in the same manner in a simple solution, although the macroscopic rheological property of the medium is quite different. Meanwhile, the orientational behavior of MION2 is dramatically changed by the addition of HEUR molecules even below the minimum gelation concentration, indicating that MION2 is associated with the flower micelles of HEUR. By analyzing the MLD waveform, the orientational behavior of MION1 in the HEUR gel under a DOMF can be explained with single-mode relaxation, whereas that of MION2 is complicated; a rapid partial rotation near the particle and a whole slow rotation of the particle-flower micelle associate are superimposed. It is hard to distinguish this difference in orientational behaviors from the dynamic magnetization curve because the dominant magnetization reversal process is Néel rotation, the rotation of the magnetic moment in the particle. The MLD measurement is a potential tool for optimizing biomedical techniques utilizing MIONs and for nanorheology or colloid science in a complex matrix such as a hydrogel or cytoplasmic matrix.
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Affiliation(s)
- Masayori Suwa
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Akira Uotani
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Yuki Tojo
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Reisho Onodera
- Ibaraki Collage, National Institute of Technology, 866 Nakane, Hitachinaka, Ibaraki 312-8573, Japan
| | - Satoshi Tsukahara
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
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9
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Xiao X, Yuan C, Li T, Fock J, Svedlindh P, Tian B. Optomagnetic biosensors: Volumetric sensing based on magnetic actuation-induced optical modulations. Biosens Bioelectron 2022; 215:114560. [PMID: 35841765 DOI: 10.1016/j.bios.2022.114560] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 04/25/2022] [Accepted: 07/07/2022] [Indexed: 12/19/2022]
Abstract
In comparison to alternative nanomaterials, magnetic micron/nano-sized particles show unique advantages, e.g., easy manipulation, stable signal, and high contrast. By applying magnetic actuation, magnetic particles exert forces on target objects for highly selective operation even in non-purified samples. We herein describe a subgroup of magnetic biosensors, namely optomagnetic biosensors, which employ alternating magnetic fields to generate periodic movements of magnetic labels. The optical modulation induced by the dynamics of magnetic labels is then analyzed by photodetectors, providing information of, e.g., hydrodynamic size changes of the magnetic labels. Optomagnetic sensing mechanisms can suppress the noise (by performing lock-in detection), accelerate the reaction (by magnetic force-enhanced molecular collision), and facilitate homogeneous/volumetric detection. Moreover, optomagnetic sensing can be performed using a low magnetic field (<10 mT) without sophisticated light sources or pickup coils, further enhancing its applicability for point-of-care tests. This review concentrates on optomagnetic biosensing techniques of different concepts classified by the magnetic actuation strategy, i.e., magnetic field-enhanced agglutination, rotating magnetic field-based particle rotation, and oscillating magnetic field-induced Brownian relaxation. Optomagnetic sensing principles applied with different actuation strategies are introduced as well. For each representative optomagnetic biosensor, a simple immunoassay strategy-based application is introduced (if possible) for methodological comparison. Thereafter, challenges and perspectives are discussed, including minimization of nonspecific binding, on-chip integration, and multiplex detection, all of which are key requirements in point-of-care diagnostics.
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Affiliation(s)
- Xiaozhou Xiao
- Department of Biomedical Engineering, School of Basic Medical Science, Central South University, Changsha Hunan, 410013, China
| | - Chuqi Yuan
- Department of Biomedical Engineering, School of Basic Medical Science, Central South University, Changsha Hunan, 410013, China
| | - Tingting Li
- Department of Biomedical Engineering, School of Basic Medical Science, Central South University, Changsha Hunan, 410013, China
| | - Jeppe Fock
- Blusense Diagnostics ApS, Fruebjergvej 3, DK-2100, Copenhagen, Denmark
| | - Peter Svedlindh
- Department of Materials Science and Engineering, Uppsala University, Box 35, SE-751 03, Uppsala, Sweden
| | - Bo Tian
- Department of Biomedical Engineering, School of Basic Medical Science, Central South University, Changsha Hunan, 410013, China.
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10
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Uddin R, Kinahan D, Ducrée J, Boisen A. Lab-on-a-disk extraction of PBMC and metered plasma from whole blood: An advanced event-triggered valving strategy. BIOMICROFLUIDICS 2021; 15:064102. [PMID: 34804316 PMCID: PMC8580574 DOI: 10.1063/5.0066128] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 10/10/2021] [Indexed: 06/13/2023]
Abstract
In this paper, we present a centrifugal microfluidic concept employing event-triggered valving for automated extraction of metered plasma and peripheral blood mononuclear cells (PBMCs). This "lab-on-a-disk" system has been developed for retrieving different density layers from a liquid column by "overflowing" the layers sequentially using the pressure exerted by a density-gradient liquid. Defined volumes of plasma and PBMCs were efficiently forwarded into designated microfluidic chambers as a sample preparation step prior to further downstream processing. Furthermore, the extracted PBMCs were counted directly on-disk using an automated optical unit by object-based image analysis, thus eliminating the requirement for the post-processing of the extracted PBMCs. This study is a direct continuation of our previous work1 where we demonstrated combined on-disk detection of C-reactive protein and quantification of PBMCs following on-disk extraction of plasma and PBMCs from a single blood sample using a centrifugo-pneumatic valving mechanism. However, the former valving technique featured limited PBMC extraction efficiency. Here, integrating the novel concept along with event-triggered valving mechanism, we eliminated the occurrence of a specific microfluidic effect, which led us to increase PBMC extraction efficiency to 88%. This extraction method has the potential to be utilized for efficiently separating multiple density layers from a liquid sample in relevant biomedical applications.
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Affiliation(s)
- Rokon Uddin
- Department of Health Technology, Technical University of Denmark, Kongens Lyngby, Denmark
| | - David Kinahan
- Department of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Jens Ducrée
- FPC@DCU—Fraunhofer Project Center at Dublin City University, Glasnevin, Dublin 9, Ireland
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11
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Soares RRG, Madaboosi N, Nilsson M. Rolling Circle Amplification in Integrated Microsystems: An Uncut Gem toward Massively Multiplexed Pathogen Diagnostics and Genotyping. Acc Chem Res 2021; 54:3979-3990. [PMID: 34637281 PMCID: PMC8567418 DOI: 10.1021/acs.accounts.1c00438] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The development of robust methods allowing the precise detection of specific nucleic acid sequences is of major societal relevance, paving the way for significant advances in biotechnology and biomedical engineering. These range from a better understanding of human disease at a molecular level, allowing the discovery and development of novel biopharmaceuticals and vaccines, to the improvement of biotechnological processes providing improved food quality and safety, efficient green fuels, and smart textiles. Among these applications, the significance of pathogen diagnostics as the main focus of this Account has become particularly clear during the recent SARS-CoV-2 pandemic. In this context, while RT-PCR is the gold standard method for unambiguous detection of genetic material from pathogens, other isothermal amplification alternatives circumventing rapid heating-cooling cycles up to ∼95 °C are appealing to facilitate the translation of the assay into point-of-care (PoC) analytical platforms. Furthermore, the possibility of routinely multiplexing the detection of tens to hundreds of target sequences with single base pair specificity, currently not met by state-of-the-art methods available in clinical laboratories, would be instrumental along the path to tackle emergent viral variants and antimicrobial resistance genes. Here, we advocate that padlock probes (PLPs), first reported by Nilsson et al. in 1994, coupled with rolling circle amplification (RCA), termed here as PLP-RCA, is an underexploited technology in current arena of isothermal nucleic acid amplification tests (NAATs) providing an unprecedented degree of multiplexing, specificity, versatility, and amenability to integration in miniaturized PoC platforms. Furthermore, the intrinsically digital amplification of PLP-RCA retains spatial information and opens new avenues in the exploration of pathogenesis with spatial multiomics analysis of infected cells and tissue.The Account starts by introducing PLP-RCA in a nutshell focusing individually on the three main assay steps, namely, (1) PLP design and ligation mechanism, (2) RCA after probe ligation, and (3) detection of the RCA products. Each subject is touched upon succinctly but with sufficient detail for the reader to appreciate some assay intricacies and degree of versatility depending on the analytical challenge at hand. After familiarizing the reader with the method, we discuss specific examples of research in our group and others using PLP-RCA for viral, bacterial, and fungal diagnostics in a variety of clinical contexts, including the genotyping of antibiotic resistance genes and viral subtyping. Then, we dissect key developments in the miniaturization and integration of PLP-RCA to minimize user input, maximize analysis throughput, and expedite the time to results, ultimately aiming at PoC applications. These developments include molecular enrichment for maximum sensitivity, spatial arrays to maximize analytical throughput, automation of liquid handling to streamline the analytical workflow in miniaturized devices, and seamless integration of signal transduction to translate RCA product titers (and ideally spatial information) into a readable output. Finally, we position PLP-RCA in the current landscape of NAATs and furnish a systematic Strengths, Weaknesses, Opportunities and Threats analysis to shine light upon unpolished edges to uncover the gem with potential for ubiquitous, precise, and unbiased pathogen diagnostics.
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Affiliation(s)
- Ruben R. G. Soares
- Department of Biochemistry and Biophysics, Science for Life Laboratory, Stockholm University, 17165 Solna, Sweden
- Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, KTH Royal Institute of Technology, 17165 Solna, Sweden
| | - Narayanan Madaboosi
- Department of Biochemistry and Biophysics, Science for Life Laboratory, Stockholm University, 17165 Solna, Sweden
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, 600036 Tamil Nadu, India
| | - Mats Nilsson
- Department of Biochemistry and Biophysics, Science for Life Laboratory, Stockholm University, 17165 Solna, Sweden
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12
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Oropesa-Nuñez R, Zardán Gómez de la Torre T, Stopfel H, Svedlindh P, Strömberg M, Gunnarsson K. Insights into the Formation of DNA-Magnetic Nanoparticle Hybrid Structures: Correlations between Morphological Characterization and Output from Magnetic Biosensor Measurements. ACS Sens 2020; 5:3510-3519. [PMID: 33141554 PMCID: PMC7706118 DOI: 10.1021/acssensors.0c01623] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
![]()
Understanding
the binding mechanism between probe-functionalized
magnetic nanoparticles (MNPs) and DNA targets or amplification products
thereof is essential in the optimization of magnetic biosensors for
the detection of DNA. Herein, the molecular interaction forming hybrid
structures upon hybridization between DNA-functionalized magnetic
nanoparticles, exhibiting Brownian relaxation, and rolling circle
amplification products (DNA-coils) is investigated by the use of atomic
force microscopy in a liquid environment and magnetic biosensors measuring
the frequency-dependent magnetic response and the frequency-dependent
modulation of light transmission. This approach reveals the qualitative
and quantitative correlations between the morphological features of
the hybrid structures with their magnetic response. The suppression
of the high-frequency peak in the magnetic response and the appearance
of a new peak at lower frequencies match the formation of larger sized
assemblies upon increasing the concentration of DNA-coils. Furthermore,
an increase of the DNA-coil concentration induces an increase in the
number of MNPs per hybrid structure. This study provides new insights
into the DNA–MNP binding mechanism, and its versatility is
of considerable importance for the mechanistic characterization of
other DNA-nanoparticle biosensor systems.
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Affiliation(s)
- Reinier Oropesa-Nuñez
- Department of Materials Science and Engineering, Uppsala University, Ångströmlaboratoriet, Box 35, SE-751 03 Uppsala, Sweden
| | - Teresa Zardán Gómez de la Torre
- Department of Materials Science and Engineering, Uppsala University, Ångströmlaboratoriet, Box 35, SE-751 03 Uppsala, Sweden
| | - Henry Stopfel
- Department of Materials Science and Engineering, Uppsala University, Ångströmlaboratoriet, Box 35, SE-751 03 Uppsala, Sweden
| | - Peter Svedlindh
- Department of Materials Science and Engineering, Uppsala University, Ångströmlaboratoriet, Box 35, SE-751 03 Uppsala, Sweden
| | - Mattias Strömberg
- Department of Materials Science and Engineering, Uppsala University, Ångströmlaboratoriet, Box 35, SE-751 03 Uppsala, Sweden
| | - Klas Gunnarsson
- Department of Materials Science and Engineering, Uppsala University, Ångströmlaboratoriet, Box 35, SE-751 03 Uppsala, Sweden
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13
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Minero GAS, Bagnasco M, Fock J, Tian B, Garbarino F, Hansen MF. Automated on-chip analysis of tuberculosis drug-resistance mutation with integrated DNA ligation and amplification. Anal Bioanal Chem 2020; 412:2705-2710. [PMID: 32157358 DOI: 10.1007/s00216-020-02568-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 02/24/2020] [Accepted: 03/02/2020] [Indexed: 01/14/2023]
Abstract
Detection of a single base mutation in Mycobacterium tuberculosis DNA can provide fast and highly specific diagnosis of antibiotic-resistant tuberculosis. Mutation-specific ligation of padlock probes (PLPs) on the target followed by rolling circle amplification (RCA) is highly specific, but challenging to integrate in a simple microfluidic device due to the low temperature stability of the phi29 polymerase and the interference of phi29 with the PLP annealing and ligation. Here, we utilized the higher operation temperature and temperature stability of Equiphi29 polymerase to simplify the integration of the PLP ligation and RCA steps of an RCA assay in two different strategies performed at uniform temperature. In strategy I, PLP annealing took place off-chip and the PLP ligation and RCA were performed in one pot and the two reactions were clocked by a change of the temperature. For a total assay time of about 1.5 h, we obtained a limit of detection of 2 pM. In strategy II, the DNA ligation mixture and the RCA mixture were separated into two chambers on a microfluidic disc. After on-disc PLP annealing and ligation, the disc was spun to mix reagents and initiate RCA. For a total assay time of about 2 h, we obtained a limit of detection of 5 pM. Graphical abstract.
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Affiliation(s)
- Gabriel Antonio S Minero
- Department of Health Technology, DTU Health Tech, Technical University of Denmark, Building 345C, 2800, Kongens Lyngby, Denmark.
| | - Martina Bagnasco
- Department of Health Technology, DTU Health Tech, Technical University of Denmark, Building 345C, 2800, Kongens Lyngby, Denmark
| | - Jeppe Fock
- BluSense Diagnostics ApS, Fruebjergvej 3, DK-2100, Copenhagen, Denmark
| | - Bo Tian
- Department of Health Technology, DTU Health Tech, Technical University of Denmark, Building 345C, 2800, Kongens Lyngby, Denmark
| | - Francesca Garbarino
- Department of Health Technology, DTU Health Tech, Technical University of Denmark, Building 345C, 2800, Kongens Lyngby, Denmark
| | - Mikkel F Hansen
- Department of Health Technology, DTU Health Tech, Technical University of Denmark, Building 345C, 2800, Kongens Lyngby, Denmark.
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14
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Sepehri S, Zardán Gómez de la Torre T, Schneiderman JF, Blomgren J, Jesorka A, Johansson C, Nilsson M, Albert J, Strømme M, Winkler D, Kalaboukhov A. Homogeneous Differential Magnetic Assay. ACS Sens 2019; 4:2381-2388. [PMID: 31397152 DOI: 10.1021/acssensors.9b00969] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Assays are widely used for detection of various targets, including pathogens, drugs, and toxins. Homogeneous assays are promising for the realization of point-of-care diagnostics as they do not require separation, immobilization, or washing steps. For low concentrations of target molecules, the speed and sensitivity of homogeneous assays have hitherto been limited by slow binding kinetics, time-consuming amplification steps, and the presence of a high background signal. Here, we present a homogeneous differential magnetic assay that utilizes a differential magnetic readout that eliminates previous limitations of homogeneous assays. The assay uses a gradiometer sensor configuration combined with precise microfluidic sample handling. This enables simultaneous differential measurement of a positive test sample containing a synthesized Vibrio cholerae target and a negative control sample, which reduces the background signal and increases the readout speed. Very low concentrations of targets down to femtomolar levels are thus detectable without any additional amplification of the number of targets. Our homogeneous differential magnetic assay method opens new possibilities for rapid and highly sensitive diagnostics at the point of care.
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Affiliation(s)
| | | | - Justin F. Schneiderman
- MedTech West and the Institute of Neuroscience and Physiology, University of Gothenburg, SE-405 30 Göteborg, Sweden
| | - Jakob Blomgren
- RISE − Research Institute of Sweden, SE-411 33 Göteborg, Sweden
| | | | | | - Mats Nilsson
- Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University,
Box 1031,SE-171 21 Solna, Sweden
| | - Jan Albert
- Department of Clinical Microbiology, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, SE-171 77 Stockholm, Sweden
| | - Maria Strømme
- The Ångström Laboratory, Department of Engineering Sciences, Uppsala University, Box 534, SE-751 21 Uppsala, Sweden
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15
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Characterization of Binding of Magnetic Nanoparticles to Rolling Circle Amplification Products by Turn-On Magnetic Assay. BIOSENSORS-BASEL 2019; 9:bios9030109. [PMID: 31533330 PMCID: PMC6784358 DOI: 10.3390/bios9030109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 08/30/2019] [Accepted: 09/04/2019] [Indexed: 01/23/2023]
Abstract
The specific binding of oligonucleotide-tagged 100 nm magnetic nanoparticles (MNPs) to rolling circle products (RCPs) is investigated using our newly developed differential homogenous magnetic assay (DHMA). The DHMA measures ac magnetic susceptibility from a test and a control samples simultaneously and eliminates magnetic background signal. Therefore, the DHMA can reveal details of binding kinetics of magnetic nanoparticles at very low concentrations of RCPs. From the analysis of the imaginary part of the DHMA signal, we find that smaller MNPs in the particle ensemble bind first to the RCPs. When the RCP concentration increases, we observe the formation of agglomerates, which leads to lower number of MNPs per RCP at higher concentrations of RCPs. The results thus indicate that a full frequency range of ac susceptibility observation is necessary to detect low concentrations of target RCPs and a long amplification time is not required as it does not significantly increase the number of MNPs per RCP. The findings are critical for understanding the underlying microscopic binding process for improving the assay performance. They furthermore suggest DHMA is a powerful technique for dynamically characterizing the binding interactions between MNPs and biomolecules in fluid volumes.
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16
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Ultrasensitive Real-Time Rolling Circle Amplification Detection Enhanced by Nicking-Induced Tandem-Acting Polymerases. Anal Chem 2019; 91:10102-10109. [DOI: 10.1021/acs.analchem.9b02073] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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17
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Balk AL, Gilbert I, Ivkov R, Unguris J, Stavis SM. Bubble Magnetometry of Nanoparticle Heterogeneity and Interaction. PHYSICAL REVIEW APPLIED 2019; 11:10.1103/PhysRevApplied.11.061003. [PMID: 31579303 PMCID: PMC6774260 DOI: 10.1103/physrevapplied.11.061003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bubbles have a rich history as transducers in particle-physics experiments. In a solid-state analogue, we use bubble domains in nanomagnetic films to measure magnetic nanoparticles. This technique can determine the magnetic orientation of a single nanoparticle in a fraction of a second and generate a full hysteresis loop in a few seconds. We achieve this high throughput by tuning the nanomagnetic properties of the films, including the Dzyaloshinskii-Moriya interaction, in an application of topological protection from the skyrmion state to a nanoparticle sensor. We develop the technique on nickel-iron nanorods and iron-oxide nanoparticles, which delineate a wide range of properties and applications. Bubble magnetometry enables precise statistical analysis of the magnetic hysteresis of dispersed nanoparticles, and direct measurement of a transition from superparamagnetic behavior as single nanoparticles to collective behavior in nanoscale agglomerates. These results demonstrate a practical capability for measuring the heterogeneity and interaction of magnetic nanoparticles.
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Affiliation(s)
- Andrew L. Balk
- Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
- Maryland NanoCenter, University of Maryland, College Park, Maryland 20742, USA
- National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
| | - Ian Gilbert
- Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Robert Ivkov
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA
| | - John Unguris
- Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Samuel M. Stavis
- Microsystems and Nanotechnology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
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18
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Tian B, Han Y, Wetterskog E, Donolato M, Hansen MF, Svedlindh P, Strömberg M. MicroRNA Detection through DNAzyme-Mediated Disintegration of Magnetic Nanoparticle Assemblies. ACS Sens 2018; 3:1884-1891. [PMID: 30188122 DOI: 10.1021/acssensors.8b00850] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
DNA-assembled nanoparticle superstructures offer numerous bioresponsive properties that can be utilized for point-of-care diagnostics. Functional DNA sequences such as deoxyribozymes (DNAzymes) provide novel bioresponsive strategies and further extend the application of DNA-assembled nanoparticle superstructures. In this work, we describe a microRNA detection biosensor that combines magnetic nanoparticle (MNP) assemblies with DNAzyme-assisted target recycling. The DNA scaffolds of the MNP assemblies contain substrate sequences for DNAzyme and can form cleavage catalytic structures in the presence of target DNA or RNA sequences, leading to rupture of the scaffolds and disintegration of the MNP assemblies. The target sequences are preserved during the cleavage reaction and release into the suspension to trigger the digestion of multiple DNA scaffolds. The high local concentration of substrate sequences in the MNP assemblies reduces the diffusion time for target recycling. The concentration of released MNPs, which is proportional to the concentration of the target, can be quantified by a 405 nm laser-based optomagnetic sensor. For the detection of let-7b in 10% serum, after 1 h of isothermal reaction at 50 °C, we found a linear detection range between 10 pM and 100 nM with a limit of detection of 6 pM. For the quantification of DNA target in buffer solution, a limit of detection of 1.5 pM was achieved. Compared to protein enzyme-based microRNA detection methods, the proposed DNAzyme-based biosensor has an increased stability, a reduced cost and a possibility to be used in living cells, all of which are valuable features for biosensing applications.
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Affiliation(s)
- Bo Tian
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21 Uppsala, Sweden
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech,
Building 345B, DK-2800 Kongens Lyngby, Denmark
| | - Yuanyuan Han
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21 Uppsala, Sweden
| | - Erik Wetterskog
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21 Uppsala, Sweden
| | - Marco Donolato
- BluSense Diagnostics, Fruebjergvej 3, DK-2100 Copenhagen, Denmark
| | - Mikkel Fougt Hansen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech,
Building 345B, DK-2800 Kongens Lyngby, Denmark
| | - Peter Svedlindh
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21 Uppsala, Sweden
| | - Mattias Strömberg
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21 Uppsala, Sweden
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19
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Abstract
![]()
The optical pickup
unit (OPU) within a CD/DVD/Blu-ray drive integrates
780, 650, and 405 nm wavelength lasers, diffraction-limited optics,
a high-bandwidth optoelectronic transducer up to 400 MHz, and a nanoresolution x-, z-axis, and tilt actuator in a compact
size. In addition, the OPU is a remarkable piece of engineering and
could enable different scientific applications such as sub-angstrom
displacement sensing, micro- and nanoimaging, and nanolithography.
Although off-the-shelf OPUs can be easily obtained, manufacturers
protect their datasheets under nondisclosure agreements to impede
their availability to the public. Thus, OPUs are black boxes that
few people can use for research, and only experienced researchers
can access all their functions. This review details the OPU mechanism
and components. In addition, we explain how to utilize three commercially
available triple-wavelength OPUs from scratch and optimize sensing
quality. Then, we discuss scientific research using OPUs, from standard
optical drive-based turnkey-biomarker array reading and OPU direct
bioapplications (cytometry, optical tweezing, bioimaging) to modified
OPU-based biosensing (DNA chip fluorescence scanning, biomolecular
diagnostics). We conclude by presenting future trends on optical storage
devices and potential applications. Hacking low-cost and high-performance
OPUs may spread micro- and nanoscale biosensing research from research
laboratories to citizen scientists around the globe.
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Affiliation(s)
- Edwin En-Te Hwu
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Micro- and Nanotechnology, Technical University of Denmark, Lyngby 2800, Denmark
| | - Anja Boisen
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Micro- and Nanotechnology, Technical University of Denmark, Lyngby 2800, Denmark
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20
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Tian B, Liao X, Svedlindh P, Strömberg M, Wetterskog E. Ferromagnetic Resonance Biosensor for Homogeneous and Volumetric Detection of DNA. ACS Sens 2018; 3:1093-1101. [PMID: 29847920 DOI: 10.1021/acssensors.8b00048] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The ability to detect and analyze the state of magnetic labels with high sensitivity is of crucial importance for developing magnetic biosensors. In this work, we demonstrate, for the first time, a ferromagnetic resonance (FMR) based homogeneous and volumetric biosensor for magnetic label detection. Two different isothermal amplification methods, i.e., rolling circle amplification (RCA) and loop-mediated isothermal amplification (LAMP), are adopted and combined with a standard electron paramagnetic resonance (EPR) spectrometer for FMR biosensing. For the RCA-based FMR biosensor, binding of RCA products of a synthetic Vibrio cholerae target DNA sequence gives rise to the formation of aggregates of magnetic nanoparticles. Immobilization of nanoparticles within the aggregates leads to a decrease of the net anisotropy of the system and a concomitant increase of the resonance field. A limit of detection of 1 pM is obtained with a linear detection range between 7.8 and 250 pM. For the LAMP-based sensing, a synthetic Zika virus target oligonucleotide is amplified and detected in 20% serum samples. Immobilization of magnetic nanoparticles is induced by their coprecipitation with Mg2P2O7 (a byproduct of LAMP) and provides a detection sensitivity of 100 aM. The fast measurement, high sensitivity, and miniaturization potential of the proposed FMR biosensing technology makes it a promising candidate for designing future point-of-care devices.
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Affiliation(s)
- Bo Tian
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21 Uppsala, Sweden
| | - Xiaoqi Liao
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21 Uppsala, Sweden
| | - Peter Svedlindh
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21 Uppsala, Sweden
| | - Mattias Strömberg
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21 Uppsala, Sweden
| | - Erik Wetterskog
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21 Uppsala, Sweden
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21
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Li Z, Lopez-Ortega A, Aranda-Ramos A, Tajada JL, Sort J, Nogues C, Vavassori P, Nogues J, Sepulveda B. Simultaneous Local Heating/Thermometry Based on Plasmonic Magnetochromic Nanoheaters. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800868. [PMID: 29761629 DOI: 10.1002/smll.201800868] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/04/2018] [Indexed: 05/24/2023]
Abstract
A crucial challenge in nanotherapies is achieving accurate and real-time control of the therapeutic action, which is particularly relevant in local thermal therapies to minimize healthy tissue damage and necrotic cell deaths. Here, a nanoheater/thermometry concept is presented based on magnetoplasmonic (Co/Au or Fe/Au) nanodomes that merge exceptionally efficient plasmonic heating and simultaneous highly sensitive detection of the temperature variations. The temperature detection is based on precise optical monitoring of the magnetic-induced rotation of the nanodomes in solution. It is shown that the phase lag between the optical signal and the driving magnetic field can be used to detect viscosity variations around the nanodomes with unprecedented accuracy (detection limit 0.0016 mPa s, i.e., 60-fold smaller than state-of-the-art plasmonic nanorheometers). This feature is exploited to monitor the viscosity reduction induced by optical heating in real-time, even in highly inhomogeneous cell dispersions. The magnetochromic nanoheater/thermometers show higher optical stability, much higher heating efficiency and similar temperature detection limits (0.05 °C) compared to state-of-the art luminescent nanothermometers. The technological interest is also boosted by the simpler and lower cost temperature detection system, and the cost effectiveness and scalability of the nanofabrication process, thereby highlighting the biomedical potential of this nanotechnology.
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Affiliation(s)
- Zhi Li
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) and Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193, Barcelona, Spain
- Departament de Física, Facultat de Ciències, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | | | - Antonio Aranda-Ramos
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Facultat de Biociències, Universitat Autónoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - José Luis Tajada
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) and Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Jordi Sort
- Departament de Física, Facultat de Ciències, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain
| | - Carme Nogues
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Facultat de Biociències, Universitat Autónoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Paolo Vavassori
- CIC nanoGUNE, E-20018, Donostia-San Sebastian, Spain
- IKERBASQUE, Basque Foundation for Science, E-40013, Bilbao, Spain
| | - Josep Nogues
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) and Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain
| | - Borja Sepulveda
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) and Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193, Barcelona, Spain
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22
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Chen Z, Duan X, Wei H, Tang S, Xu C, Li Y, Guan Y, Zhao G. Screening oligonucleotide sequences for silver staining and d-galactose visual detection using RCA silver staining in a tube. Acta Biochim Biophys Sin (Shanghai) 2018; 50:507-515. [PMID: 29635339 DOI: 10.1093/abbs/gmy034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Accepted: 03/07/2018] [Indexed: 02/04/2023] Open
Abstract
Oligonucleotides were screened for strongly silver-stained repetitive sequences. An 'AG'-clustered purine sequence showed strong staining, and the staining density can be compromised by disrupting the continuity of the 'AG'-clustered sequence. The staining-favored sequence was then employed in rolling circle amplification (RCA) for its product detection. A tube-staining method was developed for convenient and visual RCA assay. Moreover, by introducing GalR into RCA, d-galactose was detected by RCA tube-staining with naked eyes without any equipment. About 10 mM d-galactose can be easily identified, and the detection of d-galactose was specific in comparison with that of several other monosaccharides.
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Affiliation(s)
- Ziwei Chen
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang 110122, China
| | - Xuying Duan
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang 110122, China
| | - Hua Wei
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang 110122, China
| | - Suming Tang
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang 110122, China
| | - Chidong Xu
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Yanlei Li
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Yifu Guan
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang 110122, China
| | - Guojie Zhao
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang 110122, China
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23
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Fock J, Balceris C, Costo R, Zeng L, Ludwig F, Hansen MF. Field-dependent dynamic responses from dilute magnetic nanoparticle dispersions. NANOSCALE 2018; 10:2052-2066. [PMID: 29323383 DOI: 10.1039/c7nr07602a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The response of magnetic nanoparticles (MNPs) to an oscillating magnetic field outside the linear response region is important for several applications including magnetic hyperthermia, magnetic resonance imaging and biodetection. The size and magnetic moment are two critical parameters for the performance of a colloidal MNP dispersion. We present and demonstrate the use of optomagnetic (OM) and AC susceptibility (ACS) measurements vs. frequency and magnetic field strength to obtain the size and magnetic moment distributions including the correlation between the distributions. The correlation between the size and the magnetic moment contains information on the morphology and intrinsic structure of the particle. In OM measurements, the variation of the second harmonic light transmission through a dispersion of MNPs is measured in response to an oscillating magnetic field. We solve the Fokker-Planck equations for MNPs with a permanent magnetic moment, and develop analytical approximations to the ACS and the OM signals that also account for the change in the curve shapes with increasing field strength. Further, we describe the influence of induced magnetic moments on the signals, by solving the Fokker-Planck equation for particles, which apart from the permanent magnetic moment may also have an induced magnetic moment and shape anisotropy. Using the results from the Fokker-Planck calculations we fit ACS and OM measurements on two multi-core particle systems. The obtained fit parameters also describe the correlations between the magnetic moment and size of the particles. From such an analysis on a commercially available polydisperse multicore particle system with an average particle size of 80 nm, we find that the MNP magnetic moment is proportional to the square root of the hydrodynamic size.
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Affiliation(s)
- Jeppe Fock
- Department of Micro- and Nanotechnology, DTU Nanotech, Bldg. 345B, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark.
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24
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Tian B, Qiu Z, Ma J, Donolato M, Hansen MF, Svedlindh P, Strömberg M. On-Particle Rolling Circle Amplification-Based Core-Satellite Magnetic Superstructures for MicroRNA Detection. ACS APPLIED MATERIALS & INTERFACES 2018; 10:2957-2964. [PMID: 29266917 DOI: 10.1021/acsami.7b16293] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Benefiting from the specially tailored properties of the building blocks as well as of the scaffolds, DNA-assembled core-satellite superstructures have gained increasing interest in drug delivery, imaging, and biosensing. The load of satellites plays a vital role in core-satellite superstructures, and it determines the signal intensity in response to a biological/physical stimulation/actuation. Herein, for the first time, we utilize on-particle rolling circle amplification (RCA) to prepare rapidly responsive core-satellite magnetic superstructures with a high load of magnetic nanoparticle (MNP) satellites. Combined with duplex-specific nuclease-assisted target recycling, the proposed magnetic superstructures hold great promise in sensitive and rapid microRNA detection. The long single-stranded DNA produced by RCA serving as the scaffold of the core-satellite superstructure can be hydrolyzed by duplex-specific nuclease in the presence of target microRNA, resulting in a release of MNPs that can be quantified in an optomagnetic sensor. The proposed biosensor has a simple mix-separate-measure strategy. For let-7b detection, the proposed biosensor offers a wide linear detection range of approximately 5 orders of magnitude with a detection sensitivity of 1 fM. Moreover, it has the capability to discriminate single-nucleotide mismatches and to detect let-7b in cell extracts and serum, thus showing considerable potential for clinical applications.
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Affiliation(s)
- Bo Tian
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory , Box 534, SE-751 21 Uppsala, Sweden
| | - Zhen Qiu
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory , Box 534, SE-751 21 Uppsala, Sweden
| | - Jing Ma
- Department of Immunology, Genetics and Pathology, Uppsala University, The Rudbeck Laboratory , SE-751 85 Uppsala, Sweden
| | - Marco Donolato
- BluSense Diagnostics, Fruebjergvej 3, DK-2100 Copenhagen, Denmark
| | - Mikkel Fougt Hansen
- Department of Micro- and Nanotechnology, Technical University of Denmark , DTU Nanotech, Building 345B, DK-2800 Kongens Lyngby, Denmark
| | - Peter Svedlindh
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory , Box 534, SE-751 21 Uppsala, Sweden
| | - Mattias Strömberg
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory , Box 534, SE-751 21 Uppsala, Sweden
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25
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Sepehri S, Eriksson E, Kalaboukhov A, Zardán Gómez de la Torre T, Kustanovich K, Jesorka A, Schneiderman JF, Blomgren J, Johansson C, Strømme M, Winkler D. Volume-amplified magnetic bioassay integrated with microfluidic sample handling and high- Tc SQUID magnetic readout. APL Bioeng 2017; 2:016102. [PMID: 31069287 PMCID: PMC6481700 DOI: 10.1063/1.4999713] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 10/26/2017] [Indexed: 11/14/2022] Open
Abstract
A bioassay based on a high-Tc superconducting quantum interference device (SQUID) reading out functionalized magnetic nanoparticles (fMNPs) in a prototype microfluidic platform is presented. The target molecule recognition is based on volume amplification using padlock-probe-ligation followed by rolling circle amplification (RCA). The MNPs are functionalized with single-stranded oligonucleotides, which give a specific binding of the MNPs to the large RCA coil product, resulting in a large change in the amplitude of the imaginary part of the ac magnetic susceptibility. The RCA products from amplification of synthetic Vibrio cholera target DNA were investigated using our SQUID ac susceptibility system in microfluidic channel with an equivalent sample volume of 3 μl. From extrapolation of the linear dependence of the SQUID signal versus concentration of the RCA coils, it is found that the projected limit of detection for our system is about 1.0 × 105 RCA coils (0.2 × 10−18 mol), which is equivalent to 66 fM in the 3 μl sample volume. This ultra-high magnetic sensitivity and integration with microfluidic sample handling are critical steps towards magnetic bioassays for rapid detection of DNA and RNA targets at the point of care.
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Affiliation(s)
- Sobhan Sepehri
- Department of Microtechnology and Nanoscience-MC2, Chalmers University of Technology, Göteborg 412 96, Sweden
| | | | - Alexei Kalaboukhov
- Department of Microtechnology and Nanoscience-MC2, Chalmers University of Technology, Göteborg 412 96, Sweden
| | | | - Kiryl Kustanovich
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg 412 96, Sweden
| | - Aldo Jesorka
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg 412 96, Sweden
| | | | | | | | - Maria Strømme
- Department of Engineering Sciences, Uppsala University, The Ångström Laboratory, Box 534, SE-751 21 Uppsala, Sweden
| | - Dag Winkler
- Department of Microtechnology and Nanoscience-MC2, Chalmers University of Technology, Göteborg 412 96, Sweden
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26
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Tian B, Wetterskog E, Qiu Z, Zardán Gómez de la Torre T, Donolato M, Fougt Hansen M, Svedlindh P, Strömberg M. Shape anisotropy enhanced optomagnetic measurement for prostate-specific antigen detection via magnetic chain formation. Biosens Bioelectron 2017; 98:285-291. [DOI: 10.1016/j.bios.2017.06.062] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 06/19/2017] [Accepted: 06/28/2017] [Indexed: 01/27/2023]
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27
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Huang X, Liu Y, Yung B, Xiong Y, Chen X. Nanotechnology-Enhanced No-Wash Biosensors for in Vitro Diagnostics of Cancer. ACS NANO 2017; 11:5238-5292. [PMID: 28590117 DOI: 10.1021/acsnano.7b02618] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
In vitro biosensors have been an integral component for early diagnosis of cancer in the clinic. Among them, no-wash biosensors, which only depend on the simple mixing of the signal generating probes and the sample solution without additional washing and separation steps, have been found to be particularly attractive. The outstanding advantages of facile, convenient, and rapid response of no-wash biosensors are especially suitable for point-of-care testing (POCT). One fast-growing field of no-wash biosensor design involves the usage of nanomaterials as signal amplification carriers or direct signal generating elements. The analytical capacity of no-wash biosensors with respect to sensitivity or limit of detection, specificity, stability, and multiplexing detection capacity is largely improved because of their large surface area, excellent optical, electrical, catalytic, and magnetic properties. This review provides a comprehensive overview of various nanomaterial-enhanced no-wash biosensing technologies and focuses on the analysis of the underlying mechanism of these technologies applied for the early detection of cancer biomarkers ranging from small molecules to proteins, and even whole cancerous cells. Representative examples are selected to demonstrate the proof-of-concept with promising applications for in vitro diagnostics of cancer. Finally, a brief discussion of common unresolved issues and a perspective outlook on the field are provided.
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Affiliation(s)
- Xiaolin Huang
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, P. R. China
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH) , Bethesda, Maryland 20892, United States
| | - Yijing Liu
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH) , Bethesda, Maryland 20892, United States
| | - Bryant Yung
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH) , Bethesda, Maryland 20892, United States
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang 330047, P. R. China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH) , Bethesda, Maryland 20892, United States
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28
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Tian B, Ma J, Qiu Z, Zardán Gómez de la Torre T, Donolato M, Hansen MF, Svedlindh P, Strömberg M. Optomagnetic Detection of MicroRNA Based on Duplex-Specific Nuclease-Assisted Target Recycling and Multilayer Core-Satellite Magnetic Superstructures. ACS NANO 2017; 11:1798-1806. [PMID: 28177611 DOI: 10.1021/acsnano.6b07763] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Superstructural assembly of magnetic nanoparticles enables approaches to biosensing by combining specially tailored properties of superstructures and the particular advantages associated with a magnetic or optomagnetic read-out such as low background signal, easy manipulation, cost-efficiency, and potential for bioresponsive multiplexing. Herein, we demonstrate a sensitive and rapid miRNA detection method based on optomagnetic read-out, duplex-specific nuclease (DSN)-assisted target recycling, and the use of multilayer core-satellite magnetic superstructures. Triggered by the presence of target miRNA and DSN-assisted target recycling, the core-satellite magnetic superstructures release their "satellites" to the suspension, which subsequently can be quantified accurately in a low-cost and user-friendly optomagnetic setup. Target miRNAs are preserved in the cleaving reaction and can thereby trigger more cleavage and release of "satellites". For singleplex detection of let-7b, a linear detection range between 10 fM and 10 nM was observed, and a detection limit of 4.8 fM was obtained within a total assay time of 70 min. Multiplexing was achieved by releasing nanoparticles of different sizes in the presence of different miRNAs. The proposed method also has the advantages of single-nucleotide mismatch discrimination and the ability of quantification in a clinical sample matrix, thus holding great promise for miRNA routine multiplex diagnostics.
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Affiliation(s)
- Bo Tian
- Department of Engineering Sciences, The Ångström Laboratory, Uppsala University , Box 534, SE-751 21 Uppsala, Sweden
| | - Jing Ma
- Department of Immunology, Genetics, and Pathology, The Rudbeck Laboratory, Uppsala University , SE-751 85 Uppsala, Sweden
| | - Zhen Qiu
- Department of Engineering Sciences, The Ångström Laboratory, Uppsala University , Box 534, SE-751 21 Uppsala, Sweden
| | | | - Marco Donolato
- BluSense Diagnostics , Fruebjergvej 3, DK-2100 Copenhagen, Denmark
| | - Mikkel Fougt Hansen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech , Building 345B, DK-2800 Kongens Lyngby, Denmark
| | - Peter Svedlindh
- Department of Engineering Sciences, The Ångström Laboratory, Uppsala University , Box 534, SE-751 21 Uppsala, Sweden
| | - Mattias Strömberg
- Department of Engineering Sciences, The Ångström Laboratory, Uppsala University , Box 534, SE-751 21 Uppsala, Sweden
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29
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Comparison of optomagnetic and AC susceptibility readouts in a magnetic nanoparticle agglutination assay for detection of C-reactive protein. Biosens Bioelectron 2017; 88:94-100. [DOI: 10.1016/j.bios.2016.07.088] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 07/22/2016] [Accepted: 07/25/2016] [Indexed: 02/06/2023]
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30
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Tao W, Lin P, Hu J, Ke S, Song J, Zeng X. A sensitive DNA sensor based on an organic electrochemical transistor using a peptide nucleic acid-modified nanoporous gold gate electrode. RSC Adv 2017. [DOI: 10.1039/c7ra09832d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An organic electrochemical transistor (OECT) based on poly(3,4-ethylenedioxythiophene):polystyrene sulfonate with porous anodic aluminum oxide (AAO) as a gate electrode was proposed for DNA sensing.
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Affiliation(s)
- Wenyan Tao
- Shenzhen Key Laboratory of Special Functional Materials
- Shenzhen Engineering Laboratory for Advance Technology of Ceramics
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen
| | - Peng Lin
- Shenzhen Key Laboratory of Special Functional Materials
- Shenzhen Engineering Laboratory for Advance Technology of Ceramics
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen
| | - Jin Hu
- Shenzhen Key Laboratory of Special Functional Materials
- Shenzhen Engineering Laboratory for Advance Technology of Ceramics
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen
| | - Shanming Ke
- Shenzhen Key Laboratory of Special Functional Materials
- Shenzhen Engineering Laboratory for Advance Technology of Ceramics
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen
| | - Jiajun Song
- Shenzhen Key Laboratory of Special Functional Materials
- Shenzhen Engineering Laboratory for Advance Technology of Ceramics
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen
| | - Xierong Zeng
- Shenzhen Key Laboratory of Special Functional Materials
- Shenzhen Engineering Laboratory for Advance Technology of Ceramics
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen
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31
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Fock J, Jonasson C, Johansson C, Hansen MF. Characterization of fine particles using optomagnetic measurements. Phys Chem Chem Phys 2017; 19:8802-8814. [DOI: 10.1039/c6cp08749c] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Measurements of optical transmission in an oscillating magnetic field are used to determine the magnetic moment and hydrodynamic size of magnetic nanoparticles.
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Affiliation(s)
- Jeppe Fock
- Department of Micro- and Nanotechnology
- DTU Nanotech
- Technical University of Denmark
- DK-2800 Kongens Lyngby
- Denmark
| | | | | | - Mikkel Fougt Hansen
- Department of Micro- and Nanotechnology
- DTU Nanotech
- Technical University of Denmark
- DK-2800 Kongens Lyngby
- Denmark
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32
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Minero GAS, Fock J, McCaskill JS, Hansen MF. Optomagnetic detection of DNA triplex nanoswitches. Analyst 2017; 142:582-585. [DOI: 10.1039/c6an02419j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Triplex DNA formation is studied using rapid low-cost and dose-dependent optomagnetic method with an assay time of max 10 min and limit of detection of 100 pM.
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Affiliation(s)
- Gabriel Antonio S. Minero
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DTU Nanotech
- DK-2800 Kongens Lyngby
- Denmark
| | - Jeppe Fock
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DTU Nanotech
- DK-2800 Kongens Lyngby
- Denmark
| | - John S. McCaskill
- Ruhr-Universitaet Bochum
- Microsystems Chemistry and BioIT (BioMIP)
- NC3
- 44801 Bochum
- Germany
| | - Mikkel F. Hansen
- Department of Micro- and Nanotechnology
- Technical University of Denmark
- DTU Nanotech
- DK-2800 Kongens Lyngby
- Denmark
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33
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Tian B, Qiu Z, Ma J, Zardán Gómez de la Torre T, Johansson C, Svedlindh P, Strömberg M. Attomolar Zika virus oligonucleotide detection based on loop-mediated isothermal amplification and AC susceptometry. Biosens Bioelectron 2016; 86:420-425. [DOI: 10.1016/j.bios.2016.06.085] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/16/2016] [Accepted: 06/28/2016] [Indexed: 01/22/2023]
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34
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Tian B, Ma J, Zardán Gómez de la Torre T, Bálint Á, Donolato M, Hansen MF, Svedlindh P, Strömberg M. Rapid Newcastle Disease Virus Detection Based on Loop-Mediated Isothermal Amplification and Optomagnetic Readout. ACS Sens 2016. [DOI: 10.1021/acssensors.6b00379] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Bo Tian
- Department
of Engineering Sciences, Uppsala University, The Ångström Laboratory,
Box 534, SE-751 21 Uppsala, Sweden
| | - Jing Ma
- Department
of Immunology, Genetics and Pathology, Uppsala University, The Rudbeck Laboratory, SE-751 85 Uppsala, Sweden
| | | | - Ádám Bálint
- National
Food Chain Safety Office, Veterinary Diagnostic Directorate, Tábornok
u. 2., H-1143 Budapest, Hungary
| | - Marco Donolato
- BluSense Diagnostics, Fruebjergvej
3, 2100 Copenhagen, Denmark
| | - Mikkel Fougt Hansen
- Department
of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Building 345 East, DK-2800 Kongens Lyngby, Denmark
| | - Peter Svedlindh
- Department
of Engineering Sciences, Uppsala University, The Ångström Laboratory,
Box 534, SE-751 21 Uppsala, Sweden
| | - Mattias Strömberg
- Department
of Engineering Sciences, Uppsala University, The Ångström Laboratory,
Box 534, SE-751 21 Uppsala, Sweden
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35
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Schrittwieser S, Pelaz B, Parak WJ, Lentijo-Mozo S, Soulantica K, Dieckhoff J, Ludwig F, Guenther A, Tschöpe A, Schotter J. Homogeneous Biosensing Based on Magnetic Particle Labels. SENSORS 2016; 16:s16060828. [PMID: 27275824 PMCID: PMC4934254 DOI: 10.3390/s16060828] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 05/30/2016] [Accepted: 06/01/2016] [Indexed: 12/17/2022]
Abstract
The growing availability of biomarker panels for molecular diagnostics is leading to an increasing need for fast and sensitive biosensing technologies that are applicable to point-of-care testing. In that regard, homogeneous measurement principles are especially relevant as they usually do not require extensive sample preparation procedures, thus reducing the total analysis time and maximizing ease-of-use. In this review, we focus on homogeneous biosensors for the in vitro detection of biomarkers. Within this broad range of biosensors, we concentrate on methods that apply magnetic particle labels. The advantage of such methods lies in the added possibility to manipulate the particle labels by applied magnetic fields, which can be exploited, for example, to decrease incubation times or to enhance the signal-to-noise-ratio of the measurement signal by applying frequency-selective detection. In our review, we discriminate the corresponding methods based on the nature of the acquired measurement signal, which can either be based on magnetic or optical detection. The underlying measurement principles of the different techniques are discussed, and biosensing examples for all techniques are reported, thereby demonstrating the broad applicability of homogeneous in vitro biosensing based on magnetic particle label actuation.
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Affiliation(s)
- Stefan Schrittwieser
- Molecular Diagnostics, AIT Austrian Institute of Technology, Vienna1220, Austria.
| | - Beatriz Pelaz
- Fachbereich Physik, Philipps-Universität Marburg, Marburg 35037, Germany.
| | - Wolfgang J Parak
- Fachbereich Physik, Philipps-Universität Marburg, Marburg 35037, Germany.
| | - Sergio Lentijo-Mozo
- Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse, INSA, UPS, CNRS, Toulouse 31077, France.
| | - Katerina Soulantica
- Laboratoire de Physique et Chimie des Nano-objets (LPCNO), Université de Toulouse, INSA, UPS, CNRS, Toulouse 31077, France.
| | - Jan Dieckhoff
- Institute of Electrical Measurement and Fundamental Electrical Engineering, TU Braunschweig, Braunschweig 38106, Germany.
| | - Frank Ludwig
- Institute of Electrical Measurement and Fundamental Electrical Engineering, TU Braunschweig, Braunschweig 38106, Germany.
| | - Annegret Guenther
- Experimentalphysik, Universität des Saarlandes, Saarbrücken 66123, Germany.
| | - Andreas Tschöpe
- Experimentalphysik, Universität des Saarlandes, Saarbrücken 66123, Germany.
| | - Joerg Schotter
- Molecular Diagnostics, AIT Austrian Institute of Technology, Vienna1220, Austria.
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36
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Quan X, Uddin R, Heiskanen A, Parmvi M, Nilson K, Donolato M, Hansen MF, Rena G, Boisen A. The copper binding properties of metformin--QCM-D, XPS and nanobead agglomeration. Chem Commun (Camb) 2016; 51:17313-6. [PMID: 26462973 DOI: 10.1039/c5cc04321b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Study of the copper binding properties of metformin is important for revealing its mechanism of action as a first-line type-2 diabetes drug. A quantitative investigation of interactions between metformin and L-cysteine-copper complexes was performed. The results suggest that metformin could interact with biological copper, which plays a key role in mitochondrial function.
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Affiliation(s)
- Xueling Quan
- Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
| | - Rokon Uddin
- Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
| | - Arto Heiskanen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
| | - Mattias Parmvi
- Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
| | - Katharina Nilson
- DTU DANCHIP, Technical University of Denmark, Building 347, Kgs. Lyngby DK-2800, Denmark
| | - Marco Donolato
- Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
| | - Mikkel F Hansen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
| | - Graham Rena
- Cardiovascular and Diabetes Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee DD1 9SY, UK
| | - Anja Boisen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
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37
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Tian B, Bejhed RS, Svedlindh P, Strömberg M. Blu-ray optomagnetic measurement based competitive immunoassay for Salmonella detection. Biosens Bioelectron 2016; 77:32-9. [DOI: 10.1016/j.bios.2015.08.070] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 08/28/2015] [Accepted: 08/30/2015] [Indexed: 01/02/2023]
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38
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Quantification of NS1 dengue biomarker in serum via optomagnetic nanocluster detection. Sci Rep 2015; 5:16145. [PMID: 26536916 PMCID: PMC4633614 DOI: 10.1038/srep16145] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 10/07/2015] [Indexed: 12/12/2022] Open
Abstract
Dengue is a tropical vector-borne disease without cure or vaccine that progressively spreads into regions with temperate climates. Diagnostic tools amenable to resource-limited settings would be highly valuable for epidemiologic control and containment during outbreaks. Here, we present a novel low-cost automated biosensing platform for detection of dengue fever biomarker NS1 and demonstrate it on NS1 spiked in human serum. Magnetic nanoparticles (MNPs) are coated with high-affinity monoclonal antibodies against NS1 via bio-orthogonal Cu-free 'click' chemistry on an anti-fouling surface molecular architecture. The presence of the target antigen NS1 triggers MNP agglutination and the formation of nanoclusters with rapid kinetics enhanced by external magnetic actuation. The amount and size of the nanoclusters correlate with the target concentration and can be quantified using an optomagnetic readout method. The resulting automated dengue fever assay takes just 8 minutes, requires 6 μL of serum sample and shows a limit of detection of 25 ng/mL with an upper detection range of 20000 ng/mL. The technology holds a great potential to be applied to NS1 detection in patient samples. As the assay is implemented on a low-cost microfluidic disc the platform is suited for further expansion to multiplexed detection of a wide panel of biomarkers.
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39
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Yang J, Donolato M, Pinto A, Bosco FG, Hwu ET, Chen CH, Alstrøm TS, Lee GH, Schäfer T, Vavassori P, Boisen A, Lin Q, Hansen MF. Blu-ray based optomagnetic aptasensor for detection of small molecules. Biosens Bioelectron 2015; 75:396-403. [PMID: 26342583 DOI: 10.1016/j.bios.2015.08.062] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 08/27/2015] [Accepted: 08/28/2015] [Indexed: 10/23/2022]
Abstract
This paper describes an aptamer-based optomagnetic biosensor for detection of a small molecule based on target binding-induced inhibition of magnetic nanoparticle (MNP) clustering. For the detection of a target small molecule, two mutually exclusive binding reactions (aptamer-target binding and aptamer-DNA linker hybridization) are designed. An aptamer specific to the target and a DNA linker complementary to a part of the aptamer sequence are immobilized onto separate MNPs. Hybridization of the DNA linker and the aptamer induces formation of MNP clusters. The target-to-aptamer binding on MNPs prior to the addition of linker-functionalized MNPs significantly hinders the hybridization reaction, thus reducing the degree of MNP clustering. The clustering state, which is thus related to the target concentration, is then quantitatively determined by an optomagnetic readout technique that provides the hydrodynamic size distribution of MNPs and their clusters. A commercial Blu-ray optical pickup unit is used for optical signal acquisition, which enables the establishment of a low-cost and miniaturized biosensing platform. Experimental results show that the degree of MNP clustering correlates well with the concentration of a target small molecule, adenosine triphosphate (ATP) in this work, in the range between 10µM and 10mM. This successful proof-of-concept indicates that our optomagnetic aptasensor can be further developed as a low-cost biosensing platform for detection of small molecule biomarkers in an out-of-lab setting.
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Affiliation(s)
- Jaeyoung Yang
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Building 345 East, DK-2800 Kongens Lyngby, Denmark; Department of Mechanical Engineering, Columbia University, New York, NY 10027, United States
| | - Marco Donolato
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Building 345 East, DK-2800 Kongens Lyngby, Denmark
| | - Alessandro Pinto
- POLYMAT, University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastián, Spain
| | - Filippo Giacomo Bosco
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Building 345 East, DK-2800 Kongens Lyngby, Denmark
| | - En-Te Hwu
- Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Ching-Hsiu Chen
- Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Tommy Sonne Alstrøm
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Building 345 East, DK-2800 Kongens Lyngby, Denmark
| | - Gwan-Hyoung Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Republic of Korea
| | - Thomas Schäfer
- POLYMAT, University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastián, Spain; IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain
| | - Paolo Vavassori
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain; CIC nanoGUNE Consolider, 20018 Donostia-San Sebastián, Spain
| | - Anja Boisen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Building 345 East, DK-2800 Kongens Lyngby, Denmark
| | - Qiao Lin
- Department of Mechanical Engineering, Columbia University, New York, NY 10027, United States.
| | - Mikkel Fougt Hansen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Building 345 East, DK-2800 Kongens Lyngby, Denmark.
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40
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Mezger A, Fock J, Antunes P, Østerberg FW, Boisen A, Nilsson M, Hansen MF, Ahlford A, Donolato M. Scalable DNA-Based Magnetic Nanoparticle Agglutination Assay for Bacterial Detection in Patient Samples. ACS NANO 2015; 9:7374-82. [PMID: 26166357 DOI: 10.1021/acsnano.5b02379] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We demonstrate a nanoparticle-based assay for the detection of bacteria causing urinary tract infections in patient samples with a total assay time of 4 h. This time is significantly shorter than the current gold standard, plate culture, which can take several days depending on the pathogen. The assay is based on padlock probe recognition followed by two cycles of rolling circle amplification (RCA) to form DNA coils corresponding to the target bacterial DNA. The readout of the RCA products is based on optomagnetic measurements of the specific agglutination of DNA-bound magnetic nanoparticles (MNPs) using low-cost optoelectronic components from Blu-ray drives. We implement a detection approach, which relies on the monomerization of the RCA products, the use of the monomers to link and agglutinate two populations of MNPs functionalized with universal nontarget specific detection probes and on the introduction of a magnetic incubation scheme. This enables multiplex detection of Escherichia coli, Proteus mirabilis and Pseudomonas aeruginosa at clinically relevant concentrations, demonstrating a factor of 30 improvement in sensitivity compared to previous MNP-based detection schemes. Thanks to the universal probes, the same set of functionalized MNPs can be used to read out products from a multitude of RCA targets, making the approach truly scalable for parallel detection of multiple bacteria in a future integrated point of care molecular diagnostics system.
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Affiliation(s)
- Anja Mezger
- †Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University, 11418 Stockholm, Sweden
| | - Jeppe Fock
- ‡DTU Nanotech, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Paula Antunes
- ‡DTU Nanotech, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | | | - Anja Boisen
- ‡DTU Nanotech, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Mats Nilsson
- †Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University, 11418 Stockholm, Sweden
| | - Mikkel F Hansen
- ‡DTU Nanotech, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Annika Ahlford
- †Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University, 11418 Stockholm, Sweden
| | - Marco Donolato
- ‡DTU Nanotech, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
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