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Rokutani S, Hiraka K, Saitoh H, Saito T, Nonaka Y, Ueno K, Tsukakoshi K, Ohnishi N, Ikebukuro K. Aptamer-enhanced particle aggregation inhibition assay for simple homogeneous protein detection using DNA aptamer and thermo-responsive magnetic nanoparticles. Biosens Bioelectron 2024; 245:115827. [PMID: 37979546 DOI: 10.1016/j.bios.2023.115827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/24/2023] [Accepted: 11/07/2023] [Indexed: 11/20/2023]
Abstract
A simple and sensitive homogeneous protein detection system is required for the early detection of biomarkers. Thermo-responsive magnetic particles (TM) have already been developed to achieve easy bound/free separation at the homogeneous protein detection system, but they are still limited owing to the requirement of secondary antibodies and negatively charged polymers, and it is challenging to control the TM aggregation behavior because of the size of the TM. Therefore, at new method to control TM aggregation behavior that is simple, easy, and highly sensitive is required. In this study, we developed a DNA aptamer-based TM assay as a simple protein detection system without additional secondary molecular recognition elements or negatively charged polymer. In the first attempt, a DNA aptamer was modified on the TM surface, and its aggregation behavior was monitored depending on the target molecule concentration. The TM aggregation rate during the heating process decreased depending on the amount of the DNA aptamer and increased depending on the target protein level. This suggests that the DNA aptamer prevented TM aggregation owing to its negative charge and achieved target protein detection owing to the cancellation of repulsion. Capturable aptamers were used in the TM assay to improve the sensitivity and limit of detection. The designed Capture DNA was modified on the TM surface, and the aptamer was captured in the presence of the target protein through a conformational change. Eventually, Capturable aptamer-based TM assay achieved a sub-nanomolar limit of detection and higher sensitivity than that of our initial investigation. Through this study and the ease of the DNA aptamer design, it was shown that the DNA aptamer-modified TM assay enabled the development of a simple and sensitive homogeneous protein detection system.
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Affiliation(s)
- Shunsuke Rokutani
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Kentaro Hiraka
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan; College of Science, Engineering and Technology, Grand Canyon University, 3300 W Camelback Rd, Phoenix, AZ, 85017, USA; National Institute for Physiological Sciences, National Institutes of Natural Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan
| | - Hiroshi Saitoh
- JNC Petrochemical Corporation, Goi Research Center, 5-1 Goi-kaigan, Ichihara, Chiba, 290-8551, Japan
| | - Taiki Saito
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Yoshihiko Nonaka
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Kinuko Ueno
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Kaori Tsukakoshi
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Noriyuki Ohnishi
- JNC Petrochemical Corporation, Goi Research Center, 5-1 Goi-kaigan, Ichihara, Chiba, 290-8551, Japan.
| | - Kazunori Ikebukuro
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan.
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2
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Ludwig F, Remmer H. Rotational dynamics of magnetic nanoparticles in different matrix systems. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2019-0115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
Dynamic magnetic measurements on magnetic nanoparticle (MNP) samples have been widely used for the determination of structural MNP parameters as well as for the realization of bioassays. On the other hand, proposed that the MNPs are thermally blocked, i.e., that the dynamics are dominated by the Brownian rotation, and knowing the distribution of their hydrodynamic size, information on the matrix properties can be obtained. In contrast to conventional rheology, the local environment of the MNPs is sensed on the nanoscale so that important information on the embedding of MNPs in the matrix and thus the particle-matrix interaction is obtained. Depending on the characteristic length scales of the matrix and the size of the MNPs, rheological parameters, such as viscosity and shear modulus, derived from nanorheological measurements can differ from the values obtained from conventional rheology. To measure the MNP dynamics, different experimental techniques can be applied. In this contribution, the focus lies on ac susceptometry and fluxgate magnetorelaxometry. The analysis of the complex ACS spectra is generally carried out within a modified Debye model. Different approaches for the estimation of rheological parameters from the complex ACS spectra will be presented. Two model systems will exemplarily be discussed in detail. As a Newtonian matrix system, water-glycerol mixtures were studied. It is demonstrated that the dynamic viscosity can accurately be estimated from ACS measurements on well thermally blocked single-core as well as on multicore MNP systems, which include Brownian and Néel dynamics. As a viscoelastic matrix system, aqueous gelatin solutions were studied. Gelatin is known to be a Voigt-Kelvin model system, in which elastic and viscous forces are parallel. In particular, we studied the gelation dynamics by repetitive measurements of the complex ACS spectrum. Different approaches to derive viscosity and shear modulus are applied and compared. In order to identify magnetoviscous effects in dynamic magnetic measurements, the magnetic field dependence of the Brownian relaxation time has to be eliminated. ACS measurements on various sufficiently strongly diluted aqueous MNP suspensions were performed in dependence of ac field amplitude and superimposed dc field strength and compared to theory. Excellent agreement was found.
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Affiliation(s)
- Frank Ludwig
- Institut für Elektrische Messtechnik und Grundlagen der Elektrotechnik , TU Braunschweig , D-38106 Braunschweig , Germany
| | - Hilke Remmer
- Institut für Elektrische Messtechnik und Grundlagen der Elektrotechnik , TU Braunschweig , D-38106 Braunschweig , Germany
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3
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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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4
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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: 7] [Impact Index Per Article: 3.5] [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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Oehlsen O, Cervantes-Ramírez SI, Cervantes-Avilés P, Medina-Velo IA. Approaches on Ferrofluid Synthesis and Applications: Current Status and Future Perspectives. ACS OMEGA 2022; 7:3134-3150. [PMID: 35128226 PMCID: PMC8811916 DOI: 10.1021/acsomega.1c05631] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 01/06/2022] [Indexed: 05/14/2023]
Abstract
Ferrofluids are colloidal suspensions of iron oxide nanoparticles (IONPs) within aqueous or nonaqueous liquids that exhibit strong magnetic properties. These magnetic properties allow ferrofluids to be manipulated and controlled when exposed to magnetic fields. This review aims to provide the current scope and research opportunities regarding the methods of synthesis of nanoparticles, surfactants, and carrier liquids for ferrofluid production, along with the rheology and applications of ferrofluids within the fields of medicine, water treatment, and mechanical engineering. A ferrofluid is composed of IONPs, a surfactant that coats the magnetic IONPs to prevent agglomeration, and a carrier liquid that suspends the IONPs. Coprecipitation and thermal decomposition are the main methods used for the synthesis of IONPs. Despite the fact that thermal decomposition provides precise control on the nanoparticle size, coprecipitation is the most used method, even when the oxidation of iron can occur. This oxidation alters the ratio of maghemite/magnetite, influencing the magnetic properties of ferrofluids. Strategies to overcome iron oxidation have been proposed, such as the use of an inert atmosphere, adjusting the Fe(II) and Fe(III) ratio to 1:2, and the exploration of other metals with the oxidation state +2. Surfactants and carrier liquids are chosen according to the ferrofluid application to ensure stability. Hence, a compatible carrier liquid (polar or nonpolar) is selected, and then, a surfactant, mainly a polymer, is embedded in the IONPs, providing a steric barrier. Due to the variety of surfactants and carrier liquids, the rheological properties of ferrofluids are an important response variable evaluated when synthesizing ferrofluids. There are many reported applications of ferrofluids, including biosensing, medical imaging, medicinal therapy, magnetic nanoemulsions, and magnetic impedance. Other applications include water treatment, energy harvesting and transfer, and vibration control. To progress from synthesis to applications, research is still ongoing to ensure control of the ferrofluids' properties.
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Affiliation(s)
- Oscar Oehlsen
- Department
of Natural Sciences, Western New Mexico
University, 1000 W College Avenue, Silver City, New Mexico 88062, United States
| | - Sussy I. Cervantes-Ramírez
- Escuela
de Ingeniería y Ciencias, Reserva Territorial Atlixcáyotl, Tecnologico de Monterrey, Puebla, Pue 72453, Mexico
| | - Pabel Cervantes-Avilés
- Escuela
de Ingeniería y Ciencias, Reserva Territorial Atlixcáyotl, Tecnologico de Monterrey, Puebla, Pue 72453, Mexico
- . Phone: +52 202-303-2000
| | - Illya A. Medina-Velo
- Department
of Natural Sciences, Western New Mexico
University, 1000 W College Avenue, Silver City, New Mexico 88062, United States
- Department
of Chemistry, Mathematics, and Physics, Houston Baptist University, 7502 Fondren Road, Houston, Texas 77074, United States
- . Phone: +1 281-649-3459
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6
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Rösch EL, Zhong J, Lak A, Liu Z, Etzkorn M, Schilling M, Ludwig F, Viereck T, Lalkens B. Point-of-need detection of pathogen-specific nucleic acid targets using magnetic particle spectroscopy. Biosens Bioelectron 2021; 192:113536. [PMID: 34358999 PMCID: PMC8314793 DOI: 10.1016/j.bios.2021.113536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/23/2021] [Accepted: 07/24/2021] [Indexed: 12/23/2022]
Abstract
The ongoing COVID-19 pandemic stresses the need for widely available diagnostic tests for the presence of SARS-CoV-2 in individuals. Due to the limited availability of vaccines, diagnostic assays which are cheap, easy-to-use at the point-of-need, reliable and fast, are currently the only way to control the pandemic situation. Here we present a diagnostic assay for the detection of pathogen-specific nucleic acids based on changes of the magnetic response of magnetic nanoparticles: The target-mediated hybridization of modified nanoparticles leads to an increase in the hydrodynamic radius. This resulting change in the magnetic behaviour in an ac magnetic field can be measured via magnetic particle spectroscopy (MPS), providing a viable tool for the accurate detection of target nucleic acids. In this work we show that single stranded DNA can be detected in a concentration-dependent manner by these means. In addition to detecting synthetic DNA with an arbitrary sequence in a concentration down to 500 pM, we show that RNA and SARS-CoV-2-specific DNA as well as saliva as a sample medium can be used for an accurate assay. These proof-of-principle experiments show the potential of MPS based assays for the reliable and fast diagnostics of pathogens like SARS-CoV-2 in a point-of-need fashion without the need of complex sample preparation.
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Affiliation(s)
- Enja Laureen Rösch
- Institute for Electrical Measurement Science and Fundamental Electrical Engineering and Laboratory for Emerging Nanometrology (LENA), TU Braunschweig, Hans-Sommer-Str. 66, Braunschweig, 38106, Germany
| | - Jing Zhong
- Institute for Electrical Measurement Science and Fundamental Electrical Engineering and Laboratory for Emerging Nanometrology (LENA), TU Braunschweig, Hans-Sommer-Str. 66, Braunschweig, 38106, Germany
| | - Aidin Lak
- Institute for Electrical Measurement Science and Fundamental Electrical Engineering and Laboratory for Emerging Nanometrology (LENA), TU Braunschweig, Hans-Sommer-Str. 66, Braunschweig, 38106, Germany
| | - Zhe Liu
- Institute of Applied Physics, TU Braunschweig, Mendelssohnstraße 2, 38106, Braunschweig, Germany
| | - Markus Etzkorn
- Institute of Applied Physics, TU Braunschweig, Mendelssohnstraße 2, 38106, Braunschweig, Germany
| | - Meinhard Schilling
- Institute for Electrical Measurement Science and Fundamental Electrical Engineering and Laboratory for Emerging Nanometrology (LENA), TU Braunschweig, Hans-Sommer-Str. 66, Braunschweig, 38106, Germany
| | - Frank Ludwig
- Institute for Electrical Measurement Science and Fundamental Electrical Engineering and Laboratory for Emerging Nanometrology (LENA), TU Braunschweig, Hans-Sommer-Str. 66, Braunschweig, 38106, Germany
| | - Thilo Viereck
- Institute for Electrical Measurement Science and Fundamental Electrical Engineering and Laboratory for Emerging Nanometrology (LENA), TU Braunschweig, Hans-Sommer-Str. 66, Braunschweig, 38106, Germany
| | - Birka Lalkens
- Institute of Semiconductor Technology and Laboratory for Emerging Nanometrology (LENA), TU Braunschweig, Langer Kamp 6a/b, 38106, Braunschweig, Germany.
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7
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Temurok N, Leon F, Pinchon E, Clot M, Foulongne V, Cantaloube JF, Vande Perre P, Fournier-Wirth C, Molès JP, Daynès A. Magnetic field-enhanced agglutination as a readout for rapid serologic assays with human plasma. Talanta 2021; 233:122407. [PMID: 34215097 DOI: 10.1016/j.talanta.2021.122407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/30/2021] [Accepted: 04/07/2021] [Indexed: 12/11/2022]
Abstract
Recent virus outbreaks have revealed a critical need for large scale serological assays. However, many available tests either require a cumbersome, costly apparatus or lack the availability of full automation. In order to address these limitations, we describe a homogeneous assay for antibody detection via measurement of superparamagnetic particles agglutination. Application of a magnetic field permits to overcome the limitations governed by Brownian translational diffusion in conventional assays and results in an important acceleration of the aggregation process as well as an improvement of the limit of detection. Furthermore, the use of protein-concentrated fluid such as 5 times-diluted human plasma does not impair the performances of the method. Screening of human plasma samples shows a strict discrimination between seropositive and seronegative samples in an assay duration as short as 14 s. The sensitivity of this method, combined with its quickness and simplicity, makes it a promising diagnostic tool.
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Affiliation(s)
- Nevzat Temurok
- HORIBA ABX SAS, Parc Euromédecine, Rue du Caducée BP 7290, 34184, Montpellier, CEDEX 4, France
| | - Fanny Leon
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Elena Pinchon
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Martine Clot
- HORIBA ABX SAS, Parc Euromédecine, Rue du Caducée BP 7290, 34184, Montpellier, CEDEX 4, France
| | - Vincent Foulongne
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Jean-François Cantaloube
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Philippe Vande Perre
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Chantal Fournier-Wirth
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Jean-Pierre Molès
- Pathogénèse et Contrôle des infections chroniques et émergentes, Université de Montpellier, EFS, Inserm, Université des Antilles, 60 rue de Navacelles, 34394, Montpellier, Cedex 5, France
| | - Aurélien Daynès
- HORIBA ABX SAS, Parc Euromédecine, Rue du Caducée BP 7290, 34184, Montpellier, CEDEX 4, France.
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8
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Zhong J, Rösch EL, Viereck T, Schilling M, Ludwig F. Toward Rapid and Sensitive Detection of SARS-CoV-2 with Functionalized Magnetic Nanoparticles. ACS Sens 2021; 6:976-984. [PMID: 33496572 PMCID: PMC7860137 DOI: 10.1021/acssensors.0c02160] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 01/18/2021] [Indexed: 12/17/2022]
Abstract
The outbreak of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) threatens global medical systems and economies and rules our daily living life. Controlling the outbreak of SARS-CoV-2 has become one of the most important and urgent strategies throughout the whole world. As of October 2020, there have not yet been any medicines or therapies to be effective against SARS-CoV-2. Thus, rapid and sensitive diagnostics is the most important measures to control the outbreak of SARS-CoV-2. Homogeneous biosensing based on magnetic nanoparticles (MNPs) is one of the most promising approaches for rapid and highly sensitive detection of biomolecules. This paper proposes an approach for rapid and sensitive detection of SARS-CoV-2 with functionalized MNPs via the measurement of their magnetic response in an ac magnetic field. For proof of concept, mimic SARS-CoV-2 consisting of spike proteins and polystyrene beads are used for experiments. Experimental results demonstrate that the proposed approach allows the rapid detection of mimic SARS-CoV-2 with a limit of detection of 0.084 nM (5.9 fmole). The proposed approach has great potential for designing a low-cost and point-of-care device for rapid and sensitive diagnostics of SARS-CoV-2.
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Affiliation(s)
- Jing Zhong
- Institute for Electrical Measurement Science and Fundamental Electrical
Engineering and Laboratory for Emerging Nanometrology (LENA), TU
Braunschweig, Hans-Sommer-Str. 66, Braunschweig D-38106,
Germany
| | - Enja Laureen Rösch
- Institute for Electrical Measurement Science and Fundamental Electrical
Engineering and Laboratory for Emerging Nanometrology (LENA), TU
Braunschweig, Hans-Sommer-Str. 66, Braunschweig D-38106,
Germany
| | - Thilo Viereck
- Institute for Electrical Measurement Science and Fundamental Electrical
Engineering and Laboratory for Emerging Nanometrology (LENA), TU
Braunschweig, Hans-Sommer-Str. 66, Braunschweig D-38106,
Germany
| | - Meinhard Schilling
- Institute for Electrical Measurement Science and Fundamental Electrical
Engineering and Laboratory for Emerging Nanometrology (LENA), TU
Braunschweig, Hans-Sommer-Str. 66, Braunschweig D-38106,
Germany
| | - Frank Ludwig
- Institute for Electrical Measurement Science and Fundamental Electrical
Engineering and Laboratory for Emerging Nanometrology (LENA), TU
Braunschweig, Hans-Sommer-Str. 66, Braunschweig D-38106,
Germany
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9
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Leon F, Pinchon E, Temurok N, Morvan F, Vasseur JJ, Clot M, Foulongne V, Cantaloube JF, Vande Perre P, Molès JP, Daynès A, Fournier-Wirth C. Diagnostic Performance of a Magnetic Field-Enhanced Agglutination Readout in Detecting Either Viral Genomes or Host Antibodies in Arbovirus Infection. Microorganisms 2021; 9:microorganisms9040674. [PMID: 33805173 PMCID: PMC8064388 DOI: 10.3390/microorganisms9040674] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 12/27/2022] Open
Abstract
Arbovirus diagnostics on blood from donors and travelers returning from endemic areas is increasingly important for better patient management and epidemiological surveillance. We developed a flexible approach based on a magnetic field-enhanced agglutination (MFEA) readout to detect either genomes or host-derived antibodies. Dengue viruses (DENVs) were selected as models. For genome detection, a pan-flavivirus amplification was performed before capture of biotinylated amplicons between magnetic nanoparticles (MNPs) grafted with DENV probes and anti-biotin antibodies. Magnetization cycles accelerated this chaining process to within 5 min while simple turbidimetry measured the signal. This molecular MFEA readout was evaluated on 43 DENV RNA(+) and 32 DENV RNA(−) samples previously screened by real-time RT-PCR. The sensitivity and the specificity were 88.37% (95% CI, 78.76%–97.95%) and 96.87% (95% CI, 90.84%–100%), respectively. For anti-DENV antibody detection, 103 plasma samples from donors were first screened using ELISA assays. An immunological MFEA readout was then performed by adding MNPs grafted with viral antigens to the samples. Anti-DENV antibodies were detected with a sensitivity and specificity of 90.62% (95% CI, 83.50%–97.76%) and 97.44% (95% CI, 92.48%–100%), respectively. This adaptable approach offers flexibility to platforms dedicated to the screening of emerging infections.
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Affiliation(s)
- Fanny Leon
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Elena Pinchon
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Nevzat Temurok
- HORIBA Medical, 34184 Montpellier, France; (N.T.); (M.C.); (A.D.)
| | - François Morvan
- Institut des Biomolecules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France; (F.M.); (J.-J.V.)
| | - Jean-Jacques Vasseur
- Institut des Biomolecules Max Mousseron (IBMM), Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France; (F.M.); (J.-J.V.)
| | - Martine Clot
- HORIBA Medical, 34184 Montpellier, France; (N.T.); (M.C.); (A.D.)
| | - Vincent Foulongne
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Jean-François Cantaloube
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Philippe Vande Perre
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Jean-Pierre Molès
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
| | - Aurélien Daynès
- HORIBA Medical, 34184 Montpellier, France; (N.T.); (M.C.); (A.D.)
| | - Chantal Fournier-Wirth
- Pathogénèse et Contrôle des Infections Chroniques et Emergentes, Université de Montpellier, Etablissement Français du Sang, Inserm, Université des Antilles, 34184 Montpellier, France; (F.L.); (E.P.); (V.F.); (J.-F.C.); (P.V.P.); (J.-P.M.)
- Correspondence: ; Tel.: +33-467616457
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10
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Du Z, Wang D, Sun Y, Noguchi Y, Bai S, Yoshida T. Empirical Expression for AC Magnetization Harmonics of Magnetic Nanoparticles under High-Frequency Excitation Field for Thermometry. NANOMATERIALS 2020; 10:nano10122506. [PMID: 33327427 PMCID: PMC7764835 DOI: 10.3390/nano10122506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/27/2020] [Accepted: 12/12/2020] [Indexed: 01/23/2023]
Abstract
The Fokker–Planck equation accurately describes AC magnetization dynamics of magnetic nanoparticles (MNPs). However, the model for describing AC magnetization dynamics of MNPs based on Fokker-Planck equation is very complicated and the numerical calculation of Fokker-Planck function is time consuming. In the stable stage of AC magnetization response, there are differences in the harmonic phase and amplitude between the stable magnetization response of MNPs described by Langevin and Fokker–Planck equation. Therefore, we proposed an empirical model for AC magnetization harmonics to compensate the attenuation of harmonics amplitude induced by a high frequency excitation field. Simulation and experimental results show that the proposed model accurately describes the AC M–H curve. Moreover, we propose a harmonic amplitude–temperature model of a magnetic nanoparticle thermometer (MNPT) in a high-frequency excitation field. The simulation results show that the temperature error is less than 0.008 K in the temperature range 310–320 K. The proposed empirical model is expected to help improve MNPT performance.
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Affiliation(s)
- Zhongzhou Du
- School of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China; (Z.D.); (D.W.)
| | - Dandan Wang
- School of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China; (Z.D.); (D.W.)
| | - Yi Sun
- Department of Electrical and Electronic Engineering, Kyushu University, Fukuoka 819-0395, Japan; (Y.N.); (T.Y.)
- Correspondence:
| | - Yuki Noguchi
- Department of Electrical and Electronic Engineering, Kyushu University, Fukuoka 819-0395, Japan; (Y.N.); (T.Y.)
| | - Shi Bai
- School of Information Science and Engineering, Shenyang University of Technology, Shenyang 110870, China;
| | - Takashi Yoshida
- Department of Electrical and Electronic Engineering, Kyushu University, Fukuoka 819-0395, Japan; (Y.N.); (T.Y.)
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11
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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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12
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Point-of-Care Diagnostics: Molecularly Imprinted Polymers and Nanomaterials for Enhanced Biosensor Selectivity and Transduction. EUROBIOTECH JOURNAL 2020. [DOI: 10.2478/ebtj-2020-0023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Abstract
Significant healthcare disparities resulting from personal wealth, circumstances of birth, education level, and more are internationally prevalent. As such, advances in biomedical science overwhelmingly benefit a minority of the global population. Point-of-Care Testing (POCT) can contribute to societal equilibrium by making medical diagnostics affordable, convenient, and fast. Unfortunately, conventional POCT appears stagnant in terms of achieving significant advances. This is attributed to the high cost and instability associated with conventional biorecognition: primarily antibodies, but nucleic acids, cells, enzymes, and aptamers have also been used. Instead, state-of-the-art biosensor researchers are increasingly leveraging molecularly imprinted polymers (MIPs) for their high selectivity, excellent stability, and amenability to a variety of physical and chemical manipulations. Besides the elimination of conventional bioreceptors, the incorporation of nanomaterials has further improved the sensitivity of biosensors. Herein, modern nanobiosensors employing MIPs for selectivity and nanomaterials for improved transduction are systematically reviewed. First, a brief synopsis of fabrication and wide-spread challenges with selectivity demonstration are presented. Afterward, the discussion turns to an analysis of relevant case studies published in the last five years. The analysis is given through two lenses: MIP-based biosensors employing specific nanomaterials and those adopting particular transduction strategies. Finally, conclusions are presented along with a look to the future through recommendations for advancing the field. It is hoped that this work will accelerate successful efforts in the field, orient new researchers, and contribute to equitable health care for all.
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13
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Reviewing Magnetic Particle Preparation: Exploring the Viability in Biosensing. SENSORS 2020; 20:s20164596. [PMID: 32824330 PMCID: PMC7471997 DOI: 10.3390/s20164596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 12/18/2022]
Abstract
In this review article, we conceptually investigated the requirements of magnetic nanoparticles for their application in biosensing and related them to example systems of our thin-film portfolio. Analyzing intrinsic magnetic properties of different magnetic phases, the size range of the magnetic particles was determined, which is of potential interest for biosensor technology. Different e-beam lithography strategies are utilized to identify possible ways to realize small magnetic particles targeting this size range. Three different particle systems from 500 μm to 50 nm are produced for this purpose, aiming at tunable, vertically magnetized synthetic antiferromagnets, martensitic transformation in a single elliptical, disc-shaped Heusler Ni50Mn32.5Ga17.5 particle and nanocylinders of Co2MnSi-Heusler compound. Perspectively, new applications for these particle systems in combination with microfluidics are addressed. Using the concept of a magnetic on–off ratchet, the most suitable particle system of these three materials is validated with respect to magnetically-driven transport in a microfluidic channel. In addition, options are also discussed for improving the magnetic ratchet for larger particles.
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14
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Pinchon E, Leon F, Temurok N, Morvan F, Vasseur JJ, Clot M, Foulongne V, Cantaloube JF, Perre PV, Daynès A, Molès JP, Fournier-Wirth C. Rapid and specific DNA detection by magnetic field-enhanced agglutination assay. Talanta 2020; 219:121344. [PMID: 32887073 DOI: 10.1016/j.talanta.2020.121344] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/23/2020] [Accepted: 06/25/2020] [Indexed: 12/13/2022]
Abstract
The detection of DNA molecules by agglutination assays has suffered from a lack of specificity. The specificity can be improved by introducing a hybridization step with a specific probe. We developed a setting that captured biotinylated DNA targets between magnetic nanoparticles (MNPs) grafted with tetrathiolated probes and anti-biotin antibodies. The agglutination assay was enhanced using a series of magnetization cycles. This setting allowed to successfully detect a synthetic single stranded DNA with a sensitivity as low as 9 pM. We next adapted this setting to the detection of PCR products. We first developed an asymmetric pan-flavivirus amplification. Then, we demonstrated its ability to detect dengue virus with a limit of detection of 100 TCID50/mL. This magnetic field-enhanced agglutination assay is an endpoint readout, which benefits from the advantages of using nanoparticles that result in particular from a very reduced duration of the test; in our case it lasts less than 5 min. This approach provides a solution to develop new generation platforms for molecular diagnostics.
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Affiliation(s)
- Elena Pinchon
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Fanny Leon
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Nevzat Temurok
- HORIBA Medical ABX SAS, Parc Euromedecine, Rue Du Caducée BP 7290, 34184, Montpellier, France.
| | - François Morvan
- Institut des Biomolécules Max Mousseron, Université de Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095, Montpellier, Cedex 5, France.
| | - Jean-Jacques Vasseur
- Institut des Biomolécules Max Mousseron, Université de Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095, Montpellier, Cedex 5, France.
| | - Martine Clot
- HORIBA Medical ABX SAS, Parc Euromedecine, Rue Du Caducée BP 7290, 34184, Montpellier, France.
| | - Vincent Foulongne
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Jean-François Cantaloube
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Philippe Vande Perre
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Aurélien Daynès
- HORIBA Medical ABX SAS, Parc Euromedecine, Rue Du Caducée BP 7290, 34184, Montpellier, France.
| | - Jean-Pierre Molès
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
| | - Chantal Fournier-Wirth
- Pathogénèse et Contrôle des infections chroniques, EFS, Université de Montpellier, Inserm, 60 rue de Navacelles, 34 394 Montpellier, Cedex 5, France.
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15
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Zhong J, Schilling M, Ludwig F. Magnetic nanoparticle-based biomolecule imaging with a scanning magnetic particle spectrometer. NANOTECHNOLOGY 2020; 31:225101. [PMID: 32069445 DOI: 10.1088/1361-6528/ab776a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This study reports on a wash-free, inexpensive and sensitive approach of biomolecule imaging with magnetic nanoparticles (MNPs) via a custom-built scanning magnetic particle spectrometer (SMPS). Streptavidin-coated MNPs are used as magnetic biomarkers for the detection of Immunoglobulin G (IgG) conjugated with biotin (IgG-Biotin) while five samples with different-concentration IgG-Biotin are prepared for experiments. The measurements of the ac susceptibility indicate that the conjugation of the IgG-Biotin onto the surface of the MNPs forms cross-linking between the MNPs, thus increasing the characteristic Brownian relaxation time from 0.627 to 1.448 ms. The ratio of the 3rd to the 1st harmonics is measured on the samples with different-concentration IgG-Biotin in ac magnetic fields with a frequency ranging from about 300 Hz to 2 kHz. It shows that the measurement sensitivity of the IgG-Biotin concentration decreases from 4.62 × 10-3 to 0.39 × 10-3 nM-1 with increasing excitation frequency. Phantom images of the harmonic ratio, measured with the SMPS, indicate that unbound and bound MNPs can be easily distinguished. Furthermore, the excitation frequency dependence of the contrast-to-noise ratio of the images is discussed based on the measurement sensitivity and the standard deviation of the measured image intensity. This study demonstrates the feasibility of the SMPS for imaging biomolecules bound onto the MNPs, which is of great interest to disease diagnostics and therapy.
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Affiliation(s)
- Jing Zhong
- Institut für Elektrische Messtechnik und Grundlagen der Elektrotechnik, Technische Universität Braunschweig, Hans-Sommer-Str. 66, Braunschweig D-38106, Germany
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16
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González Fernández C, Gómez Pastora J, Basauri A, Fallanza M, Bringas E, Chalmers JJ, Ortiz I. Continuous-Flow Separation of Magnetic Particles from Biofluids: How Does the Microdevice Geometry Determine the Separation Performance? SENSORS (BASEL, SWITZERLAND) 2020; 20:E3030. [PMID: 32471054 PMCID: PMC7308945 DOI: 10.3390/s20113030] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/21/2020] [Accepted: 05/25/2020] [Indexed: 01/02/2023]
Abstract
The use of functionalized magnetic particles for the detection or separation of multiple chemicals and biomolecules from biofluids continues to attract significant attention. After their incubation with the targeted substances, the beads can be magnetically recovered to perform analysis or diagnostic tests. Particle recovery with permanent magnets in continuous-flow microdevices has gathered great attention in the last decade due to the multiple advantages of microfluidics. As such, great efforts have been made to determine the magnetic and fluidic conditions for achieving complete particle capture; however, less attention has been paid to the effect of the channel geometry on the system performance, although it is key for designing systems that simultaneously provide high particle recovery and flow rates. Herein, we address the optimization of Y-Y-shaped microchannels, where magnetic beads are separated from blood and collected into a buffer stream by applying an external magnetic field. The influence of several geometrical features (namely cross section shape, thickness, length, and volume) on both bead recovery and system throughput is studied. For that purpose, we employ an experimentally validated Computational Fluid Dynamics (CFD) numerical model that considers the dominant forces acting on the beads during separation. Our results indicate that rectangular, long devices display the best performance as they deliver high particle recovery and high throughput. Thus, this methodology could be applied to the rational design of lab-on-a-chip devices for any magnetically driven purification, enrichment or isolation.
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Affiliation(s)
- Cristina González Fernández
- Department of Chemical and Biomolecular Engineering, ETSIIT, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain; (C.G.F.); (A.B.); (M.F.); (E.B.)
| | - Jenifer Gómez Pastora
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA; (J.G.P.); (J.J.C.)
| | - Arantza Basauri
- Department of Chemical and Biomolecular Engineering, ETSIIT, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain; (C.G.F.); (A.B.); (M.F.); (E.B.)
| | - Marcos Fallanza
- Department of Chemical and Biomolecular Engineering, ETSIIT, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain; (C.G.F.); (A.B.); (M.F.); (E.B.)
| | - Eugenio Bringas
- Department of Chemical and Biomolecular Engineering, ETSIIT, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain; (C.G.F.); (A.B.); (M.F.); (E.B.)
| | - Jeffrey J. Chalmers
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA; (J.G.P.); (J.J.C.)
| | - Inmaculada Ortiz
- Department of Chemical and Biomolecular Engineering, ETSIIT, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain; (C.G.F.); (A.B.); (M.F.); (E.B.)
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17
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Wu K, Liu J, Saha R, Su D, Krishna VD, Cheeran MCJ, Wang JP. Magnetic Particle Spectroscopy for Detection of Influenza A Virus Subtype H1N1. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13686-13697. [PMID: 32150378 DOI: 10.1021/acsami.0c00815] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Magnetic nanoparticles (MNPs) with proper surface functionalization have been extensively applied as labels for magnetic immunoassays, carriers for controlled drug/gene delivery, tracers and contrasts for magnetic imaging, etc. Here, we introduce a new biosensing scheme based on magnetic particle spectroscopy (MPS) and the self-assembly of MNPs to quantitatively detect H1N1 nucleoprotein molecules. MPS monitors the harmonics of oscillating MNPs as a metric for the freedom of rotational process, thus indicating the bound states of MNPs. These harmonics can be readily collected from nanogram quantities of iron oxide nanoparticles within 10 s. The H1N1 nucleoprotein molecule hosts multiple different epitopes that forms binding sites for many IgG polyclonal antibodies. Anchoring IgG polyclonal antibodies onto MNPs triggers the cross-linking between MNPs and H1N1 nucleoprotein molecules, thereby forming MNP self-assemblies. Using MPS and the self-assembly of MNPs, we were able to detect as low as 44 nM (4.4 pmole) H1N1 nucleoprotein. In addition, the morphologies and the hydrodynamic sizes of the MNP self-assemblies are characterized to verify the MPS results. Different MNP self-assembly models such as classical cluster, open ring tetramer, and chain model as well as multimers (from dimer to pentamer) are proposed in this paper. Herein, we claim the feasibility of using MPS and the self-assembly of MNPs as a new biosensing scheme for detecting ultralow concentrations of target biomolecules, which can be employed as rapid, sensitive, and wash-free magnetic immunoassays.
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Affiliation(s)
- Kai Wu
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jinming Liu
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Renata Saha
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Diqing Su
- Department of Chemical Engineering and Material Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Venkatramana D Krishna
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, Minnesota 55108, United States
| | - Maxim C-J Cheeran
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, Minnesota 55108, United States
| | - Jian-Ping Wang
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
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18
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Mahajan KD, Ruan G, Vieira G, Porter T, Chalmers JJ, Sooryakumar R, Winter JO. Biomolecular detection, tracking, and manipulation using a magnetic nanoparticle-quantum dot platform. J Mater Chem B 2020; 8:3534-3541. [DOI: 10.1039/c9tb02481f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Fluorescent and magnetic materials play a significant role in biosensor technology, enabling sensitive quantification and separations with applications in diagnostics, purification, quality control, and therapeutics.
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Affiliation(s)
- Kalpesh D. Mahajan
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
| | - Gang Ruan
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
- Department of Biomedical Engineering
| | - Greg Vieira
- Department of Physics
- The Ohio State University
- Columbus
- USA
- Department of Physics
| | - Thomas Porter
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
| | - Jeffrey J. Chalmers
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
| | - R. Sooryakumar
- Department of Physics
- The Ohio State University
- Columbus
- USA
| | - Jessica O. Winter
- William G. Lowrie Department of Chemical and Biomolecular Engineering
- The Ohio State University
- Columbus
- USA
- Department of Biomedical Engineering
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19
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Schrittwieser S, Haslinger MJ, Mitteramskogler T, Mühlberger M, Shoshi A, Brückl H, Bauch M, Dimopoulos T, Schmid B, Schotter J. Multifunctional Nanostructures and Nanopocket Particles Fabricated by Nanoimprint Lithography. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1790. [PMID: 31888231 PMCID: PMC6956382 DOI: 10.3390/nano9121790] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 12/09/2019] [Accepted: 12/12/2019] [Indexed: 11/16/2022]
Abstract
Nanostructured surfaces and nanoparticles are already widely employed in many different fields of research, and there is an ever-growing demand for reliable, reproducible and scalable nanofabrication methods. This is especially valid for multifunctional nanomaterials with physical properties that are tailored for specific applications. Here, we report on the fabrication of two types of nanomaterials. Specifically, we present surfaces comprising a highly uniform array of elliptical pillars as well as nanoparticles with the shape of nanopockets, possessing nano-cavities. The structures are fabricated by nanoimprint lithography, physical and wet-chemical etching and sputter deposition of thin films of various materials to achieve a multifunctional nanomaterial with defined optical and magnetic properties. We show that the nanopockets can be transferred to solution, yielding a nanoparticle dispersion. All fabrication steps are carefully characterized by microscopic and optical methods. Additionally, we show optical simulation results that are in good agreement with the experimentally obtained data. Thus, this versatile method allows to fabricate nanomaterials with specific tailor-made physical properties that can be designed by modelling prior to the actual fabrication process. Finally, we discuss possible application areas of these nanomaterials, which range from biology and medicine to electronics, photovoltaics and photocatalysis.
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Affiliation(s)
- Stefan Schrittwieser
- AIT Austrian Institute of Technology, Molecular Diagnostics, 1210 Vienna, Austria; (B.S.); (J.S.)
| | | | | | | | - Astrit Shoshi
- Department for Integrated Sensor Systems, Danube University Krems, 2700 Wiener Neustadt, Austria; (A.S.); (H.B.)
| | - Hubert Brückl
- Department for Integrated Sensor Systems, Danube University Krems, 2700 Wiener Neustadt, Austria; (A.S.); (H.B.)
| | - Martin Bauch
- AIT Austrian Institute of Technology, Photovoltaic Systems, 1210 Vienna, Austria; (M.B.); (T.D.)
| | - Theodoros Dimopoulos
- AIT Austrian Institute of Technology, Photovoltaic Systems, 1210 Vienna, Austria; (M.B.); (T.D.)
| | - Barbara Schmid
- AIT Austrian Institute of Technology, Molecular Diagnostics, 1210 Vienna, Austria; (B.S.); (J.S.)
| | - Joerg Schotter
- AIT Austrian Institute of Technology, Molecular Diagnostics, 1210 Vienna, Austria; (B.S.); (J.S.)
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20
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Abstract
: Nanomaterial biosensors have revolutionized the entire scientific, technology, biomedical, materials science, and engineering fields. Among all nanomaterials, magnetic nanoparticles, microparticles, and beads are unique in offering facile conjugation of biorecognition probes for selective capturing of any desired analytes from complex real sample matrices (e.g., biofluids such as whole blood, serum, urine and saliva, tissues, food, and environmental samples). In addition, rapid separation of the particle-captured analytes by the simple use of a magnet for subsequent detection on a sensor unit makes the magnetic particle sensor approach very attractive. The easy magnetic isolation feature of target analytes is not possible with other inorganic particles, both metallic (e.g., gold) and non-metallic (e.g., silica), which require difficult centrifugation and separation steps. Magnetic particle biosensors have thus enabled ultra-low detection with ultra-high sensitivity that has traditionally been achieved only by radioactive assays and other tedious optical sources. Moreover, when traditional approaches failed to selectively detect low-concentration analytes in complex matrices (e.g., colorimetric, electrochemistry, and optical methods), magnetic particle-incorporated sensing strategies enabled sample concentration into a defined microvolume of large surface area particles for a straightforward detection. The objective of this article is to highlight the ever-growing applications of magnetic materials for the detection of analytes present in various real sample matrices. The central idea of this paper was to show the versatility and advantages of using magnetic particles for a variety of sample matrices and analyte types and the adaptability of different transducers with the magnetic particle approaches.
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21
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Campuzano S, Gamella M, Serafín V, Pedrero M, Yáñez-Sedeño P, Pingarrón JM. Biosensing and Delivery of Nucleic Acids Involving Selected Well-Known and Rising Star Functional Nanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1614. [PMID: 31739523 PMCID: PMC6915577 DOI: 10.3390/nano9111614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 11/10/2019] [Accepted: 11/12/2019] [Indexed: 12/27/2022]
Abstract
In the last fifteen years, the nucleic acid biosensors and delivery area has seen a breakthrough due to the interrelation between the recognition of nucleic acid's high specificity, the great sensitivity of electrochemical and optical transduction and the unprecedented opportunities imparted by nanotechnology. Advances in this area have demonstrated that the assembly of nanoscaled materials allows the performance enhancement, particularly in terms of sensitivity and response time, of functional nucleic acids' biosensing and delivery to a level suitable for the construction of point-of-care diagnostic tools. Consequently, this has propelled detection methods using nanomaterials to the vanguard of the biosensing and delivery research fields. This review overviews the striking advancement in functional nanomaterials' assisted biosensing and delivery of nucleic acids. We highlight the advantages demonstrated by selected well-known and rising star functional nanomaterials (metallic, magnetic and Janus nanomaterials) focusing on the literature produced in the past five years.
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Affiliation(s)
- Susana Campuzano
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain; (M.G.); (V.S.); (M.P.)
| | | | | | | | - Paloma Yáñez-Sedeño
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain; (M.G.); (V.S.); (M.P.)
| | - José Manuel Pingarrón
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain; (M.G.); (V.S.); (M.P.)
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22
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Khramtsov P, Kropaneva M, Bochkova M, Timganova V, Zamorina S, Rayev M. Solid-phase nuclear magnetic resonance immunoassay for the prostate-specific antigen by using protein-coated magnetic nanoparticles. Mikrochim Acta 2019; 186:768. [PMID: 31713740 DOI: 10.1007/s00604-019-3925-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 10/12/2019] [Indexed: 10/25/2022]
Abstract
A solid phase NMR-based sandwich immunoassay for the prostate-specific antigen (PSA) is presented. Carbon-encapsulated iron nanoparticles were functionalized with bovine serum albumin, coupled to monoclonal antibodies, and then used as magnetic labels. A nitrocellulose membrane with 8-μm pores was coated with capture antibodies and subsequently incubated with a serum sample and a suspension of the nanoconjugate. Test strips were placed in a portable homemade NMR relaxometer. Magnetic nanoparticles attached to nitrocellulose decrease the T2 relaxation time of the water protons located inside the pores of the membrane. Thus, T2 is inversely proportional to the concentration of the antigen (PSA) in the sample. The assay can be performed within 4 h. The detection limit is 0.44 ng mL-1. Kallikrein 2, human chorionic gonadotropin, and α-fetoprotein do not interfere. Graphical abstractSchematic representation of NMR relaxometry-based sandwich dot blot immunoassay of a prostate-specific antigen (PSA). Magnetic nanoparticles bound to immunosorbent decrease the transverse relaxation times (T2) of the water protons located within the pores of the membrane. RF coil: radiofrequency coil.
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Affiliation(s)
- Pavel Khramtsov
- Laboratory of Ecological Immunology, Institute of Ecology and Genetics of Microorganisms of the Ural Branch of the Russian Academy of Sciences, branch of PSRC UB RAS, 13 Golev Str., Perm 614081, Russia. .,Department of Microbiology and Immunology, Biology Faculty, Perm State National Research University, 15 Bukirev Str., Perm 614000, Russia.
| | - Maria Kropaneva
- Laboratory of Ecological Immunology, Institute of Ecology and Genetics of Microorganisms of the Ural Branch of the Russian Academy of Sciences, branch of PSRC UB RAS, 13 Golev Str., Perm 614081, Russia
| | - Maria Bochkova
- Laboratory of Ecological Immunology, Institute of Ecology and Genetics of Microorganisms of the Ural Branch of the Russian Academy of Sciences, branch of PSRC UB RAS, 13 Golev Str., Perm 614081, Russia
| | - Valeria Timganova
- Laboratory of Ecological Immunology, Institute of Ecology and Genetics of Microorganisms of the Ural Branch of the Russian Academy of Sciences, branch of PSRC UB RAS, 13 Golev Str., Perm 614081, Russia
| | - Svetlana Zamorina
- Laboratory of Ecological Immunology, Institute of Ecology and Genetics of Microorganisms of the Ural Branch of the Russian Academy of Sciences, branch of PSRC UB RAS, 13 Golev Str., Perm 614081, Russia.,Department of Microbiology and Immunology, Biology Faculty, Perm State National Research University, 15 Bukirev Str., Perm 614000, Russia
| | - Mikhail Rayev
- Laboratory of Ecological Immunology, Institute of Ecology and Genetics of Microorganisms of the Ural Branch of the Russian Academy of Sciences, branch of PSRC UB RAS, 13 Golev Str., Perm 614081, Russia.,Department of Microbiology and Immunology, Biology Faculty, Perm State National Research University, 15 Bukirev Str., Perm 614000, Russia
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23
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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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24
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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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25
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Watarai H, Subhan Memon Sakurai S, Subhan Memon Sakurai H. Magnetic Orientational Linear Dichroism Spectra of Magnetic Nanoparticles as a Probe of the Dispersion State. ANAL SCI 2019; 35:951-954. [PMID: 31495814 DOI: 10.2116/analsci.19c006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Magnetic orientational linear dichroism (MOLD) spectra of magnetic nanoparticles (MNPs) in the UV-Vis wavelength region were found to be useful as a probe to detect changes of the dispersion state due to a restriction of the rotational Brownian motion of MNPs; a change of the medium from liquid to resin and the formation of agglomerates in solution. The magnetic-field dependence of MOLD was analyzed by using the Langevin equation, which gave information about the magnetic moment of MNPs.
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26
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Abstract
Magnetic Janus particles bring together the ability of Janus particles to perform two different functions at the same time in a single particle with magnetic properties enabling their remote manipulation, which allows headed movement and orientation. This article reviews the preparation procedures and applications in the (bio)sensing field of static and self-propelled magnetic Janus particles. The main progress in the fabrication procedures and the applicability of these particles are critically discussed, also giving some clues on challenges to be dealt with and future prospects. The promising characteristics of magnetic Janus particles in the (bio)sensing field, providing increased kinetics and sensitivity and decreased times of analysis derived from the use of external magnetic fields in their manipulation, allows foreseeing their great and exciting potential in the medical and environmental remediation fields.
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27
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Chircov C, Grumezescu AM, Holban AM. Magnetic Particles for Advanced Molecular Diagnosis. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2158. [PMID: 31284393 PMCID: PMC6651565 DOI: 10.3390/ma12132158] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 12/17/2022]
Abstract
Molecular diagnosis is the field that aims to develop nucleic-acid-based analytical methods for biological markers and gene expression assessments by combining laboratory medicine and molecular genetics. As it gradually becomes a clinical reality, molecular diagnosis could benefit from improvements resulting from thorough studies that could enhance the accuracy of these methods. The application of magnetic particles in molecular diagnosis tools has led to tremendous breakthroughs in terms of specificity, sensitivity, and discrimination in bioassays. Therefore, the aim of this review is to highlight the principles involved in the implementation of magnetic particles for sample preparation and targeted analyte isolation, purification, and extraction. Furthermore, the most recent advancements in the area of cancer and infectious disease diagnosis are presented, with an emphasis on screening and early stage detection.
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Affiliation(s)
- Cristina Chircov
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania
| | - Alexandru Mihai Grumezescu
- Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 011061 Bucharest, Romania.
| | - Alina Maria Holban
- Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, Romania
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28
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Khramtsov PV, Kropaneva MD, Bochkova MS, Timganova VP, Zamorina SA, Rayev MB. Development of an Immunosorbent for Solid-Phase NMR-Based Assay. DOKL BIOCHEM BIOPHYS 2019; 484:69-72. [PMID: 31012018 DOI: 10.1134/s1607672919010174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Indexed: 01/21/2023]
Abstract
The conditions for constructing an immunosorbent reagent for solid-phase NMR analysis were optimized. For this purpose, we increased the area of the sensitized portion of the membrane to fit the relaxometer coil size and added the agent sorption buffer. This provided the penetration of the anti-ligand molecules into the membrane thickness and their uniform distribution.
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Affiliation(s)
- P V Khramtsov
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, 614081, Perm, Russia. .,Perm State National Research University, 614600, Perm, Russia.
| | - M D Kropaneva
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, 614081, Perm, Russia
| | - M S Bochkova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, 614081, Perm, Russia
| | - V P Timganova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, 614081, Perm, Russia
| | - S A Zamorina
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, 614081, Perm, Russia.,Perm State National Research University, 614600, Perm, Russia
| | - M B Rayev
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, 614081, Perm, Russia.,Perm State National Research University, 614600, Perm, Russia
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29
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Schutzer SE, Body BA, Boyle J, Branson BM, Dattwyler RJ, Fikrig E, Gerald NJ, Gomes-Solecki M, Kintrup M, Ledizet M, Levin AE, Lewinski M, Liotta LA, Marques A, Mead PS, Mongodin EF, Pillai S, Rao P, Robinson WH, Roth KM, Schriefer ME, Slezak T, Snyder JL, Steere AC, Witkowski J, Wong SJ, Branda JA. Direct Diagnostic Tests for Lyme Disease. Clin Infect Dis 2019; 68:1052-1057. [PMID: 30307486 PMCID: PMC6399434 DOI: 10.1093/cid/ciy614] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 10/03/2018] [Indexed: 12/15/2022] Open
Abstract
Borrelia burgdorferi was discovered to be the cause of Lyme disease in 1983, leading to seroassays. The 1994 serodiagnostic testing guidelines predated a full understanding of key B. burgdorferi antigens and have a number of shortcomings. These serologic tests cannot distinguish active infection, past infection, or reinfection. Reliable direct-detection methods for active B. burgdorferi infection have been lacking in the past but are needed and appear achievable. New approaches have effectively been applied to other emerging infections and show promise in direct detection of B. burgdorferi infections.
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Affiliation(s)
- Steven E Schutzer
- Department of Medicine, Rutgers New Jersey Medical School, Newark,Correspondence: S. E. Schutzer, Rutgers New Jersey Medical School, 185 South Orange Ave, Newark, NJ 07103 ()
| | - Barbara A Body
- Laboratory Corporation of America, Burlington, North Carolina,Retired
| | | | | | | | - Erol Fikrig
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Noel J Gerald
- Office of In Vitro Diagnostics and Radiological Health, Food and Drug Administration, Department of Health and Human Services, Silver Spring, Maryland
| | - Maria Gomes-Solecki
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis
| | | | | | | | | | - Lance A Liotta
- Center for Applied Proteomics and Molecular Medicine, College of Science, George Mason University, Manassas, Virginia
| | - Adriana Marques
- Clinical Studies Unit, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Paul S Mead
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - Emmanuel F Mongodin
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore
| | - Segaran Pillai
- Office of Laboratory Science and Safety, US Food and Drug Administration, Department of Health and Human Services, Silver Spring, Maryland
| | - Prasad Rao
- Office of In Vitro Diagnostics and Radiological Health, Food and Drug Administration, Department of Health and Human Services, Silver Spring, Maryland
| | - William H Robinson
- Department of Medicine, Stanford University School of Medicine, California
| | - Kristian M Roth
- Office of In Vitro Diagnostics and Radiological Health, Food and Drug Administration, Department of Health and Human Services, Silver Spring, Maryland
| | - Martin E Schriefer
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado
| | | | | | - Allen C Steere
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston
| | | | - Susan J Wong
- Wadsworth Center, New York State Department of Health, Albany
| | - John A Branda
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston
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30
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Moerland CP, van IJzendoorn LJ, Prins MWJ. Rotating magnetic particles for lab-on-chip applications - a comprehensive review. LAB ON A CHIP 2019; 19:919-933. [PMID: 30785138 DOI: 10.1039/c8lc01323c] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Magnetic particles are widely used in lab-on-chip and biosensing applications, because they have a high surface-to-volume ratio, they can be actuated with magnetic fields and many biofunctionalization options are available. The most well-known actuation method is to apply a magnetic field gradient which generates a translational force on the particles and allows separation of the particles from a suspension. A more recently developed magnetic actuation method is to exert torque on magnetic particles by a rotating magnetic field. Rotational actuation can be achieved with a field that is uniform in space and it allows for a precise control of torque, orientation, and angular velocity of magnetic particles in lab-on-chip devices. A wide range of studies have been performed with rotating MPs, demonstrating fluid mixing, concentration determination of biological molecules in solution, and characterization of structure and function of biomolecules at the single-molecule level. In this paper we give a comprehensive review of the historical development of MP rotation studies, including configurations for field generation, physical model descriptions, and biological applications. We conclude by sketching the scientific and technological developments that can be expected in the future in the field of rotating magnetic particles for lab-on-chip applications.
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Affiliation(s)
- C P Moerland
- Department of Applied Physics, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands.
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31
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3D Printed Modular Immunofiltration Columns for Frequency Mixing-Based Multiplex Magnetic Immunodetection. SENSORS 2019; 19:s19010148. [PMID: 30609859 PMCID: PMC6338908 DOI: 10.3390/s19010148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 12/21/2018] [Accepted: 12/28/2018] [Indexed: 01/23/2023]
Abstract
For performing point-of-care molecular diagnostics, magnetic immunoassays constitute a promising alternative to established enzyme-linked immunosorbent assays (ELISA) because they are fast, robust and sensitive. Simultaneous detection of multiple biomolecular targets from one body fluid sample is desired. The aim of this work is to show that multiplex magnetic immunodetection based on magnetic frequency mixing by means of modular immunofiltration columns prepared for different targets is feasible. By calculations of the magnetic response signal, the required spacing between the modules was determined. Immunofiltration columns were manufactured by 3D printing and antibody immobilization was performed in a batch approach. It was shown experimentally that two different target molecules in a sample solution could be individually detected in a single assaying step with magnetic measurements of the corresponding immobilization filters. The arrangement order of the filters and of a negative control did not influence the results. Thus, a simple and reliable approach to multi-target magnetic immunodetection was demonstrated.
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32
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Bemetz J, Wegemann A, Saatchi K, Haase A, Häfeli UO, Niessner R, Gleich B, Seidel M. Microfluidic-Based Synthesis of Magnetic Nanoparticles Coupled with Miniaturized NMR for Online Relaxation Studies. Anal Chem 2018; 90:9975-9982. [DOI: 10.1021/acs.analchem.8b02374] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jonas Bemetz
- Institute of Hydrochemistry, Chair of Analytical Chemistry and Water Chemistry, Technical University of Munich, Marchioninistrasse 17, 81377 München, Germany
| | - Andreas Wegemann
- Munich School of BioEngineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Katayoun Saatchi
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
| | - Axel Haase
- Munich School of BioEngineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Urs O. Häfeli
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
| | - Reinhard Niessner
- Institute of Hydrochemistry, Chair of Analytical Chemistry and Water Chemistry, Technical University of Munich, Marchioninistrasse 17, 81377 München, Germany
| | - Bernhard Gleich
- Munich School of BioEngineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Michael Seidel
- Institute of Hydrochemistry, Chair of Analytical Chemistry and Water Chemistry, Technical University of Munich, Marchioninistrasse 17, 81377 München, Germany
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33
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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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34
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Complex Magnetization Harmonics of Polydispersive Magnetic Nanoclusters. NANOMATERIALS 2018; 8:nano8060424. [PMID: 29891808 PMCID: PMC6027232 DOI: 10.3390/nano8060424] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 06/08/2018] [Accepted: 06/08/2018] [Indexed: 11/16/2022]
Abstract
Understanding magnetic interparticle interactions within a single hydrodynamic volume of polydispersed magnetic nanoparticles and the resulting nonlinear magnetization properties is critical for their implementation in magnetic theranostics. However, in general, the field-dependent static and dynamic magnetization measurements may only highlight polydispersity effects including magnetic moment and size distributions. Therefore, as a complement to such typical analysis of hysteretic magnetization curves, we spectroscopically examined the complex magnetization harmonics of magnetic nanoclusters either dispersed in a liquid medium or immobilized by a hydrocolloid polymer, later to emphasize the harmonic characteristics for different core sizes. In the case of superparamagnetic nanoclusters with a 4-nm primary size, particularly, we correlated the negative quadrature components of the third-harmonic susceptibility with an insignificant cluster rotation induced by the oscillatory field. Moreover, the field-dependent in-phase components appear to be frequency-independent, suggesting a weak damping effect on the moment dynamics. The characteristic of the Néel time constant further supports this argument by showing a smaller dependence on the applied dc bias field, in comparison to that of larger cores. These findings show that the complex harmonic components of the magnetization are important attributes to the interacting cores of a magnetic nanocluster.
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35
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Sotnikov DV, Zherdev AV, Dzantiev BB. Mathematical Modeling of Bioassays. BIOCHEMISTRY (MOSCOW) 2018. [PMID: 29523069 DOI: 10.1134/s0006297917130119] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The high affinity and specificity of biological receptors determine the demand for and the intensive development of analytical systems based on use of these receptors. Therefore, theoretical concepts of the mechanisms of these systems, quantitative parameters of their reactions, and relationships between their characteristics and ligand-receptor interactions have become extremely important. Many mathematical models describing different bioassay formats have been proposed. However, there is almost no information on the comparative characteristics of these models, their assumptions, and predictive insights. In this review we suggested a set of criteria to classify various bioassays and reviewed classical and contemporary publications on these bioassays with special emphasis on immunochemical analysis systems as the most common and in-demand techniques. The possibilities of analytical and numerical modeling are discussed, as well as estimations of the minimum concentrations that may be detected in bioassays and recommendations for the choice of assay conditions.
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Affiliation(s)
- D V Sotnikov
- Bach Institute of Biochemistry, Research Center for Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia.
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36
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Urusov AE, Petrakova AV, Zherdev AV, Dzantiev BB. Application of Magnetic Nanoparticles in Immunoassay. ACTA ACUST UNITED AC 2018. [DOI: 10.1134/s1995078017050135] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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37
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Shen L, Li B, Qiao Y. Fe₃O₄ Nanoparticles in Targeted Drug/Gene Delivery Systems. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E324. [PMID: 29473914 PMCID: PMC5849021 DOI: 10.3390/ma11020324] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 02/21/2018] [Accepted: 02/21/2018] [Indexed: 01/04/2023]
Abstract
Fe₃O₄ nanoparticles (NPs), the most traditional magnetic nanoparticles, have received a great deal of attention in the biomedical field, especially for targeted drug/gene delivery systems, due to their outstanding magnetism, biocompatibility, lower toxicity, biodegradability, and other features. Naked Fe₃O₄ NPs are easy to aggregate and oxidize, and thus are often made with various coatings to realize superior properties for targeted drug/gene delivery. In this review, we first list the three commonly utilized synthesis methods of Fe₃O₄ NPs, and their advantages and disadvantages. In the second part, we describe coating materials that exhibit noticeable features that allow functionalization of Fe₃O₄ NPs and summarize their methods of drug targeting/gene delivery. Then our efforts will be devoted to the research status and progress of several different functionalized Fe₃O₄ NP delivery systems loaded with chemotherapeutic agents, and we present targeted gene transitive carriers in detail. In the following section, we illuminate the most effective treatment systems of the combined drug and gene therapy. Finally, we propose opportunities and challenges of the clinical transformation of Fe₃O₄ NPs targeting drug/gene delivery systems.
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Affiliation(s)
- Lazhen Shen
- School of Chemistry and Environmental Engineering, Institute of Applied Chemistry, Shanxi Datong University, Datong 037009, China.
| | - Bei Li
- School of Chemistry and Environmental Engineering, Institute of Applied Chemistry, Shanxi Datong University, Datong 037009, China.
| | - Yongsheng Qiao
- Department of Chemistry, Xinzhou Teachers University, Xinzhou 034000, China.
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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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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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40
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Schrittwieser S, Reichinger D, Schotter J. Applications, Surface Modification and Functionalization of Nickel Nanorods. MATERIALS (BASEL, SWITZERLAND) 2017; 11:E45. [PMID: 29283415 PMCID: PMC5793543 DOI: 10.3390/ma11010045] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 12/20/2017] [Accepted: 12/22/2017] [Indexed: 02/07/2023]
Abstract
The growing number of nanoparticle applications in science and industry is leading to increasingly complex nanostructures that fulfill certain tasks in a specific environment. Nickel nanorods already possess promising properties due to their magnetic behavior and their elongated shape. The relevance of this kind of nanorod in a complex measurement setting can be further improved by suitable surface modification and functionalization procedures, so that customized nanostructures for a specific application become available. In this review, we focus on nickel nanorods that are synthesized by electrodeposition into porous templates, as this is the most common type of nickel nanorod fabrication method. Moreover, it is a facile synthesis approach that can be easily established in a laboratory environment. Firstly, we will discuss possible applications of nickel nanorods ranging from data storage to catalysis, biosensing and cancer treatment. Secondly, we will focus on nickel nanorod surface modification strategies, which represent a crucial step for the successful application of nanorods in all medical and biological settings. Here, the immobilization of antibodies or peptides onto the nanorod surface adds another functionality in order to yield highly promising nanostructures.
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Affiliation(s)
- Stefan Schrittwieser
- Molecular Diagnostics, AIT Austrian Institute of Technology, 1220 Vienna, Austria.
| | - Daniela Reichinger
- Molecular Diagnostics, AIT Austrian Institute of Technology, 1220 Vienna, Austria.
| | - Joerg Schotter
- Molecular Diagnostics, AIT Austrian Institute of Technology, 1220 Vienna, Austria.
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Kudr J, Haddad Y, Richtera L, Heger Z, Cernak M, Adam V, Zitka O. Magnetic Nanoparticles: From Design and Synthesis to Real World Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E243. [PMID: 28850089 PMCID: PMC5618354 DOI: 10.3390/nano7090243] [Citation(s) in RCA: 240] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/21/2017] [Accepted: 08/22/2017] [Indexed: 12/19/2022]
Abstract
The increasing number of scientific publications focusing on magnetic materials indicates growing interest in the broader scientific community. Substantial progress was made in the synthesis of magnetic materials of desired size, morphology, chemical composition, and surface chemistry. Physical and chemical stability of magnetic materials is acquired by the coating. Moreover, surface layers of polymers, silica, biomolecules, etc. can be designed to obtain affinity to target molecules. The combination of the ability to respond to the external magnetic field and the rich possibilities of coatings makes magnetic materials universal tool for magnetic separations of small molecules, biomolecules and cells. In the biomedical field, magnetic particles and magnetic composites are utilized as the drug carriers, as contrast agents for magnetic resonance imaging (MRI), and in magnetic hyperthermia. However, the multifunctional magnetic particles enabling the diagnosis and therapy at the same time are emerging. The presented review article summarizes the findings regarding the design and synthesis of magnetic materials focused on biomedical applications. We highlight the utilization of magnetic materials in separation/preconcentration of various molecules and cells, and their use in diagnosis and therapy.
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Affiliation(s)
- Jiri Kudr
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-61600 Brno, Czech Republic.
| | - Yazan Haddad
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
| | - Lukas Richtera
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-61600 Brno, Czech Republic.
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-61600 Brno, Czech Republic.
| | - Mirko Cernak
- CEPLANT R&D Centre for Low-Cost Plasma and Nanotechnology Surface Modifications, Masaryk University, Kotlarska 2, CZ-61137 Brno, Czech Republic.
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-61600 Brno, Czech Republic.
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-61600 Brno, Czech Republic.
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Direct protein quantification in complex sample solutions by surface-engineered nanorod probes. Sci Rep 2017; 7:4752. [PMID: 28684848 PMCID: PMC5500566 DOI: 10.1038/s41598-017-04970-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 06/05/2017] [Indexed: 01/17/2023] Open
Abstract
Detecting biomarkers from complex sample solutions is the key objective of molecular diagnostics. Being able to do so in a simple approach that does not require laborious sample preparation, sophisticated equipment and trained staff is vital for point-of-care applications. Here, we report on the specific detection of the breast cancer biomarker sHER2 directly from serum and saliva samples by a nanorod-based homogeneous biosensing approach, which is easy to operate as it only requires mixing of the samples with the nanorod probes. By careful nanorod surface engineering and homogeneous assay design, we demonstrate that the formation of a protein corona around the nanoparticles does not limit the applicability of our detection method, but on the contrary enables us to conduct in-situ reference measurements, thus further strengthening the point-of-care applicability of our method. Making use of sandwich assays on top of the nanorods, we obtain a limit of detection of 110 pM and 470 pM in 10-fold diluted spiked saliva and serum samples, respectively. In conclusion, our results open up numerous applications in direct protein biomarker quantification, specifically in point-of-care settings where resources are limited and ease-of-use is of essence.
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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: 143] [Impact Index Per Article: 20.4] [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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Lefebvre O, Smadja C, Martincic E, Woytasik M, Ammar M. Integration of microcoils for on-chip immunosensors based on magnetic nanoparticles capture. SENSING AND BIO-SENSING RESEARCH 2017. [DOI: 10.1016/j.sbsr.2016.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Zhou L, Zhuang W, Wang X, Yu K, Yang S, Xia S. Potential effects of loading nano zero valent iron discharged on membrane fouling in an anoxic/oxic membrane bioreactor. WATER RESEARCH 2017; 111:140-146. [PMID: 28068534 DOI: 10.1016/j.watres.2017.01.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 12/08/2016] [Accepted: 01/02/2017] [Indexed: 06/06/2023]
Abstract
A laboratory-scale submerged anoxic-oxic membrane bioreactor for municipal wastewater was operated to investigate the potential effects of loading suspended nano zero valent iron (nZVI, 25 and 50 mg/L) discharged on the membrane fouling. nZVI transformed rapidly into Fen+, generated reactive oxygen species (ROS) and caused oxidative stress. This result rapidly led to the cell lysis and bacteria death, and further resulted in the decrease of biomass and extracellular polymeric substances (EPS). nZVI also thinned the membrane fouling layer. But nZVI had no obvious effects on activated sludge particle size, EPS molecule weight distribution and VOCs constitution of membrane foulant. Additionally, nZVI released Fen+ and mitigated the inorganic (mainly Si element) fouling through Fen+ flocculation. Consequently, membrane fouling mitigation with nZVI discharged was mainly due to oxidative stress to bacteria and Fen+ flocculation of nZVI.
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Affiliation(s)
- Lijie Zhou
- State Environmental Protection Key Laboratory of Drinking Water Source Management and Technology, Shenzhen Key Laboratory of Drinking Water Source Safety Control, Shenzhen Key Laboratory of Emerging Contaminants Detection & Control in Water Environment, Shenzhen Academy of Environmental Sciences, Guangdong Shenzhen 518001, China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Weiqin Zhuang
- Department of Civil and Environmental Engineering, University of Auckland, Auckland 1142, New Zealand
| | - Xin Wang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Ke Yu
- School of Environment and Energy, Peking University Shenzhen Graduate School, Guangdong Shenzhen 518055, China
| | - Shufang Yang
- Shenzhen Municipal Design & Research Institute Co., Ltd, 3007 West Sungang Road, Guangdong Shenzhen 518029, China
| | - Siqing Xia
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
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