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Chen Y, Zhang L, Wu X, Sun X, Sundah NR, Wong CY, Natalia A, Tam JKC, Lim DWT, Chowbay B, Ang BT, Tang C, Loh TP, Shao H. Magnetic augmentation through multi-gradient coupling enables direct and programmable profiling of circulating biomarkers. Nat Commun 2024; 15:8410. [PMID: 39333499 PMCID: PMC11437193 DOI: 10.1038/s41467-024-52754-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 09/19/2024] [Indexed: 09/29/2024] Open
Abstract
Conventional magnetic biosensing technologies have reduced analytical capacity for magnetic field dimensionality and require extensive sample processing. To address these challenges, we spatially engineer 3D magnetic response gradients for direct and programmable molecular detection in native biofluids. Named magnetic augmentation through triple-gradient coupling for high-performance detection (MATCH), the technology comprises gradient-distributed magnetic nanoparticles encapsulated within responsive hydrogel pillars and suspended above a magnetic sensor array. This configuration enables multi-gradient matching to achieve optimal magnetic activation, response and transduction, respectively. Through focused activation by target biomarkers, the platform preferentially releases sensor-proximal nanoparticles, generating response gradients that complement the sensor's intrinsic detection capability. By implementing an upstream module that recognizes different biomarkers and releases universal activation molecules, the technology achieves programmable detection of various circulating biomarkers in native plasma. It bypasses conventional magnetic labeling, completes in <60 minutes and achieves sensitive detection (down to 10 RNA and 1000 protein copies). We apply the MATCH to measure RNAs and proteins directly in patient plasma, achieving accurate cancer classification.
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Affiliation(s)
- Yuan Chen
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, Singapore
- Department of Biomedical Engineering, College of Design and Engineering, National University of Singapore, Singapore, Singapore
| | - Li Zhang
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, Singapore
- Department of Biomedical Engineering, College of Design and Engineering, National University of Singapore, Singapore, Singapore
| | - Xingjie Wu
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, Singapore
| | - Xuecheng Sun
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, Singapore
| | - Noah R Sundah
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, Singapore
- Department of Biomedical Engineering, College of Design and Engineering, National University of Singapore, Singapore, Singapore
| | - Chi Yan Wong
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Auginia Natalia
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, Singapore
- Department of Biomedical Engineering, College of Design and Engineering, National University of Singapore, Singapore, Singapore
| | - John K C Tam
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Darren Wan-Teck Lim
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, Singapore
- Centre for Clinician-Scientist Development, Duke-NUS Medical School, Singapore, Singapore
| | - Balram Chowbay
- Centre for Clinician-Scientist Development, Duke-NUS Medical School, Singapore, Singapore
- Clinical Pharmacology Laboratory, National Cancer Centre Singapore, Singapore, Singapore
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore, Singapore
| | - Beng Ti Ang
- National Neuroscience Institute, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Carol Tang
- National Neuroscience Institute, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
- SG Enable, Innovation, Singapore, Singapore
| | - Tze Ping Loh
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, Singapore
- Department of Laboratory Medicine, National University Hospital, Singapore, Singapore
| | - Huilin Shao
- Institute for Health Innovation & Technology, National University of Singapore, Singapore, Singapore.
- Department of Biomedical Engineering, College of Design and Engineering, National University of Singapore, Singapore, Singapore.
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, Singapore.
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2
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Wang X, Guo L, Bezsmertna O, Wu Y, Makarov D, Xu R. Printed magnetoresistive sensors for recyclable magnetoelectronics. JOURNAL OF MATERIALS CHEMISTRY. A 2024; 12:24906-24915. [PMID: 39234481 PMCID: PMC11367592 DOI: 10.1039/d4ta02765e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 08/14/2024] [Indexed: 09/06/2024]
Abstract
We have developed an innovative recyclable printed magnetoresistive sensor using GMR microflakes and AMR microparticles as functional fillers, with PECH as the elastomer binder. Under saturation magnetic fields of 100 mT and 30 mT, these sensors respectively exhibit magnetoresistance values of 4.7% and 0.45%. The excellent mechanical properties and thermal stability of the PECH elastomer binder endow these sensors with outstanding flexibility and temperature stability. This flexibility, low cost, and scalability make these sensors highly suitable for integration into flexible electronic devices, such as smart security systems and home automation. Moreover, these sensors are fully recyclable and reusable, allowing the materials to be separated, reused, and remanufactured without loss of performance. The low energy consumption of the production process and the recyclability of the materials significantly reduce the environmental impact of these magnetic field sensors.
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Affiliation(s)
- Xiaotao Wang
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research Bautzner Landstrasse 400 01328 Dresden Germany
| | - Lin Guo
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research Bautzner Landstrasse 400 01328 Dresden Germany
| | - Olha Bezsmertna
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research Bautzner Landstrasse 400 01328 Dresden Germany
| | - Yuhan Wu
- School of Environmental and Chemical Engineering, Shenyang University of Technology Shenyang China
| | - Denys Makarov
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research Bautzner Landstrasse 400 01328 Dresden Germany
| | - Rui Xu
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research Bautzner Landstrasse 400 01328 Dresden Germany
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3
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Ilgaz F, Spetzler E, Wiegand P, Faupel F, Rieger R, McCord J, Spetzler B. Miniaturized double-wing ∆E-effect magnetic field sensors. Sci Rep 2024; 14:11075. [PMID: 38744882 PMCID: PMC11094197 DOI: 10.1038/s41598-024-59015-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/05/2024] [Indexed: 05/16/2024] Open
Abstract
Magnetoelastic micro-electromechanical systems (MEMS) are integral elements of sensors, actuators, and other devices utilizing magnetostriction for their functionality. Their sensitivity typically scales with the saturation magnetostriction and inversely with magnetic anisotropy. However, large saturation magnetostriction and small magnetic anisotropy make the magnetoelastic layer highly susceptible to minuscule anisotropic stress. It is inevitably introduced during the release of the mechanical structure during fabrication and severely impairs the device's reproducibility, performance, and yield. To avoid the transfer of residual stress to the magnetic layer, we use a shadow mask deposition technology. It is combined with a free-free magnetoelectric microresonator design to minimize the influence of magnetic inhomogeneity on device performance. Magnetoelectric resonators are experimentally and theoretically analyzed regarding local stress anisotropy, magnetic anisotropy, and the ΔE-effect sensitivity in several resonance modes. The results demonstrate an exceptionally small device-to-device variation of the resonance frequency < 0.2% with large sensitivities comparable with macroscopic ΔE-effect magnetic field sensors. This development marks a promising step towards highly reproducible magnetoelastic devices and the feasibility of large-scale, integrated arrays.
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Affiliation(s)
- Fatih Ilgaz
- Chair for Multicomponent Materials, Department of Materials Science, Faculty of Engineering, Kiel University, 24143, Kiel, Germany
| | - Elizaveta Spetzler
- Nanoscale Magnetic Materials - Magnetic Domains, Department of Materials Science, Faculty of Engineering, Kiel University, 24143, Kiel, Germany
| | - Patrick Wiegand
- Networked Electronic Systems, Department of Electrical and Information Engineering, Faculty of Engineering, Kiel University, 24143, Kiel, Germany
| | - Franz Faupel
- Chair for Multicomponent Materials, Department of Materials Science, Faculty of Engineering, Kiel University, 24143, Kiel, Germany
| | - Robert Rieger
- Networked Electronic Systems, Department of Electrical and Information Engineering, Faculty of Engineering, Kiel University, 24143, Kiel, Germany
| | - Jeffrey McCord
- Nanoscale Magnetic Materials - Magnetic Domains, Department of Materials Science, Faculty of Engineering, Kiel University, 24143, Kiel, Germany
| | - Benjamin Spetzler
- Micro- and Nanoelectronic Systems, Department of Electrical Engineering and Information Technology, Ilmenau University of Technology, 98693, Ilmenau, Germany.
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4
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Li T, Xiao X, Zhou C, Luo M. Design and Application of Cu 2+ Fluorescent Sensor Based on Carbazole Derivatives. J Fluoresc 2024:10.1007/s10895-024-03741-6. [PMID: 38691280 DOI: 10.1007/s10895-024-03741-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 04/23/2024] [Indexed: 05/03/2024]
Abstract
A novel fluorescent sensor for the detection of Cu2+ was developed based on carbazole derivatives. After the addition of Cu2+, the sensor exhibited obvious fluorescence quenching phenomenon, and the optical signal variation also enabled the sensor to quantitatively analyze Cu2+ due to the formation of a stable 1:1 metal-ligand complex in a short time. In addition, the sensor possessed chemical reversibility and pH stability. The cell imaging and zebra fish experiments also verified its application value in biological system.
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Affiliation(s)
- Tiantian Li
- School of Chemistry & Environmental Engineering, Jilin Provincial International Joint Research Center of Photo-Functional Materials and Chemistry, Changchun University of Science and Technology, Changchun, 130022, PR China
| | - Xiao Xiao
- School of Chemistry & Environmental Engineering, Jilin Provincial International Joint Research Center of Photo-Functional Materials and Chemistry, Changchun University of Science and Technology, Changchun, 130022, PR China
| | - Chen Zhou
- School of Chemistry & Environmental Engineering, Jilin Provincial International Joint Research Center of Photo-Functional Materials and Chemistry, Changchun University of Science and Technology, Changchun, 130022, PR China.
| | - Mingxin Luo
- School of Chemistry & Environmental Engineering, Jilin Provincial International Joint Research Center of Photo-Functional Materials and Chemistry, Changchun University of Science and Technology, Changchun, 130022, PR China
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Wang M, Jin L, Hang-Mei Leung P, Wang-Ngai Chow F, Zhao X, Chen H, Pan W, Liu H, Li S. Advancements in magnetic nanoparticle-based biosensors for point-of-care testing. Front Bioeng Biotechnol 2024; 12:1393789. [PMID: 38725992 PMCID: PMC11079239 DOI: 10.3389/fbioe.2024.1393789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/09/2024] [Indexed: 05/12/2024] Open
Abstract
The significance of point-of-care testing (POCT) in early clinical diagnosis and personalized patient care is increasingly recognized as a crucial tool in reducing disease outbreaks and improving patient survival rates. Within the realm of POCT, biosensors utilizing magnetic nanoparticles (MNPs) have emerged as a subject of substantial interest. This review aims to provide a comprehensive evaluation of the current landscape of POCT, emphasizing its growing significance within clinical practice. Subsequently, the current status of the combination of MNPs in the Biological detection has been presented. Furthermore, it delves into the specific domain of MNP-based biosensors, assessing their potential impact on POCT. By combining existing research and spotlighting pivotal discoveries, this review enhances our comprehension of the advancements and promising prospects offered by MNP-based biosensors in the context of POCT. It seeks to facilitate informed decision-making among healthcare professionals and researchers while also promoting further exploration in this promising field of study.
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Affiliation(s)
- Miaomiao Wang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
| | - Lian Jin
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
| | - Polly Hang-Mei Leung
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Franklin Wang-Ngai Chow
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Xiaoni Zhao
- Guangzhou Wanfu Biotechnology Company, Guangzhou, China
| | - Hui Chen
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
| | - Wenjing Pan
- Hengyang Medical School, University of South China, Hengyang, China
| | - Hongna Liu
- Hengyang Medical School, University of South China, Hengyang, China
| | - Song Li
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
- Hengyang Medical School, University of South China, Hengyang, China
- National Health Commission Key Laboratory of Birth Defect Research and Prevention, Hunan Provincial Maternal and Child Healthcare Hospital, Changsha, China
- Key Laboratory of Rare Pediatric Diseases, Ministry of Education, University of South China, Hengyang, China
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6
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Sun M, Sun H, Yu C, Lu P, Feng F, Zhang J, Li W, Yao L. Force-Encoding DNA Nanomachines for Simultaneous and Direct Detection of Multiple Pathogenic Bacteria in Blood. Anal Chem 2024; 96:4314-4321. [PMID: 38415347 DOI: 10.1021/acs.analchem.4c00298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Pathogen detection is growing in importance in the early stages of bacterial infection and treatment due to the significant morbidity and mortality associated with bloodstream infections. Although various diagnostic approaches for pathogen detection have been proposed, most of them are time-consuming, with insufficient sensitivity and limited specificity and multiplexing capability for clinical use. Here, we report a force-encoding DNA nanomachine for simultaneous and high-throughput detection of multiple pathogens in blood through force-induced remnant magnetization spectroscopy (FIRMS). The force-encoding DNA nanomachines coupled with DNA walkers enable analytical sensitivity down to a single bacterium via a cascade signal amplification strategy. More importantly, it allows for rapid and specific profiling of various pathogens directly in blood samples, without being affected by factors such as light color and solution properties. We expect that this magnetic sensing platform holds great promise for various applications in biomedical research and clinical diagnostics.
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Affiliation(s)
- Mengxue Sun
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing 100190, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Hongxia Sun
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing 100190, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Chanchan Yu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing 100190, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Pan Lu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing 100190, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Feng Feng
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing 100190, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Jin Zhang
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - Wenchao Li
- The Seventh Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100010, China
| | - Li Yao
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing 100190, China
- University of the Chinese Academy of Sciences, Beijing 100049, China
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7
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Osouli Tabrizi H, Forouhi S, Azadmousavi T, Ghafar-Zadeh E. A Multidisciplinary Approach toward CMOS Capacitive Sensor Array for Droplet Analysis. MICROMACHINES 2024; 15:232. [PMID: 38398961 PMCID: PMC10892496 DOI: 10.3390/mi15020232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 01/27/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024]
Abstract
This paper introduces an innovative method for the analysis of alcohol-water droplets on a CMOS capacitive sensor, leveraging the controlled thermal behavior of the droplets. Using this sensing method, the capacitive sensor measures the total time of evaporation (ToE), which can be influenced by the droplet volume, temperature, and chemical composition. We explored this sensing method by introducing binary mixtures of water and ethanol or methanol across a range of concentrations (0-100%, with 10% increments). The experimental results indicate that while the capacitive sensor is effective in measuring both the total ToE and dielectric properties, a higher dynamic range and resolution are observed in the former. Additionally, an array of sensing electrodes successfully monitors the droplet-sensor surface interaction. However practical considerations such as the creation of parasitic capacitance due to mismatch, arise from the large sensing area in the proposed capacitive sensors and other similar devices. In this paper, we discuss this non-ideality and propose a solution. Also, this paper showcases the benefits of utilizing a CMOS capacitive sensing method for accurately measuring ToE.
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Affiliation(s)
- Hamed Osouli Tabrizi
- Biologically Inspired Sensors and Actuators, Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, ON M3J 1P3, Canada; (H.O.T.); (S.F.)
| | - Saghi Forouhi
- Biologically Inspired Sensors and Actuators, Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, ON M3J 1P3, Canada; (H.O.T.); (S.F.)
| | - Tayebeh Azadmousavi
- Department of Electrical Engineering, University of Bonab, Bonab 5551395133, Iran;
| | - Ebrahim Ghafar-Zadeh
- Biologically Inspired Sensors and Actuators, Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, ON M3J 1P3, Canada; (H.O.T.); (S.F.)
- Department of Biology, Faculty of Science, York University, Toronto, ON M3J 1P3, Canada
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Zhang H, Jiang H, Liu X, Wang X. A review of innovative electrochemical strategies for bioactive molecule detection and cell imaging: Current advances and challenges. Anal Chim Acta 2024; 1285:341920. [PMID: 38057043 DOI: 10.1016/j.aca.2023.341920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 12/08/2023]
Abstract
Cellular heterogeneity poses a major challenge for tumor theranostics, requiring high-resolution intercellular bioanalysis strategies. Over the past decades, the advantages of electrochemical analysis, such as high sensitivity, good spatio-temporal resolution, and ease of use, have made it the preferred method to uncover cellular differences. To inspire more creative research, herein, we highlight seminal works in electrochemical techniques for biomolecule analysis and bioimaging. Specifically, micro/nano-electrode-based electrochemical techniques enable real-time quantitative analysis of electroactive substances relevant to life processes in the micro-nanostructure of cells and tissues. Nanopore-based technique plays a vital role in biosensing by utilizing nanoscale pores to achieve high-precision detection and analysis of biomolecules with exceptional sensitivity and single-molecule resolution. Electrochemiluminescence (ECL) technology is utilized for real-time monitoring of the behavior and features of individual cancer cells, enabling observation of their dynamic processes due to its capability of providing high-resolution and highly sensitive bioimaging of cells. Particularly, scanning electrochemical microscopy (SECM) and scanning ion conductance microscopy (SICM) which are widely used in real-time observation of cell surface biological processes and three-dimensional imaging of micro-nano structures, such as metabolic activity, ion channel activity, and cell morphology are introduced in this review. Furthermore, the expansion of the scope of cellular electrochemistry research by innovative functionalized electrodes and electrochemical imaging models and strategies to address future challenges and potential applications is also discussed in this review.
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Affiliation(s)
- Hao Zhang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Hui Jiang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Xiaohui Liu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China.
| | - Xuemei Wang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China.
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Xie Y, Wang X, Wang Z, Feng J, Li D. Exosomes from magnetic particles-primed mesenchymal stem cells enhance neural differentiation of PC12 cells. Heliyon 2023; 9:e21075. [PMID: 37916092 PMCID: PMC10616344 DOI: 10.1016/j.heliyon.2023.e21075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 07/25/2023] [Accepted: 10/14/2023] [Indexed: 11/03/2023] Open
Abstract
This study aimed to investigate the effects of mesenchymal stem cell exosomes loaded with Fe3O4 magnetic particles (Fe3O4@ MSC-exo) on the survival and neural differentiation of PC12 cells. Exosomes were separated from Fe3O4 magnetic nanoparticles-primed umbilical cord mesenchymal stem cells condition medium by ultracentrifugation and characterized by transmission electron microscopy, flow nano analysis, and western blotting. PC12 cells were treated with culture medium containing exosomes. The effects of Fe3O4@ MSC-exo on PC12 cell proliferation, migration, and neural differentiation were analyzed using CCK-8 assay, transwell migration assay, RT-qPCR, and immunofluorescence, respectively. Additionally, miRNA sequencing was performed on Fe3O4@ MSC-exo, followed by bioinformatic analysis of the results. We found that Fe3O4@ MSC-exo can promote PC12 cell proliferation, migration, and neural differentiation. According to the sequencing results, there were a total of 43 differentially expressed miRNAs. The present study indicated that Fe3O4@ MSC-exo might enhance nerve cell function, laying the foundation for targeted therapy of nerve injury.
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Affiliation(s)
- Yong Xie
- Department of Obstetrics and Gynecology, The First People's Hospital of Foshan, Foshan 528000, China
- Department of Obstetrics and Gynecology, Leping Affiliated Hospital of the First People's Hospital of Foshan, Foshan 528100, China
| | - Xiaoyan Wang
- Department of Gynecology, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan 030013, China
| | - Zhonghui Wang
- Department of Hepatobiliary Surgery, The First People's Hospital of Foshan, Foshan 528000, China
| | - Jianyang Feng
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510000, China
| | - Dongsheng Li
- DeJa Lab, VetCell Biotech Limited, Foshan 528225, China
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Pang S, Xie Y, Shen C, Zhang J. Magnetic Field and Temperature-Dependent Brillouin Light Scattering Spectra of Magnons in Yttrium Iron Garnet. J Phys Chem Lett 2023; 14:6977-6981. [PMID: 37506385 DOI: 10.1021/acs.jpclett.3c01639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
Knowledge of the magnon responses to an external magnetic field and temperature is significant for spintronics applications. Herein, exploiting Brillouin light scattering (BLS) spectroscopy, we investigate the magnetic field and temperature dependence of the magnon frequency, line width, and intensity in yttrium iron garnet (YIG). The applied magnetic field here can effectively change the magnon frequency while maintaining the lifetime of the magnon. Specifically, we determine the temperature dependence of magnon frequency and the linear relationship between magneto-optic effects-related terms (|A(+)|2/|A(-)|2) and temperature below room temperature (RT), which can serve as a temperature sensor. Our results open an avenue to sense the temperature and the external magnetic field, including the effective magnetic field induced by the magnetic proximity effect. Furthermore, our results provide a route toward designing the operating frequency and loss of the devices, facilitating future research in spin-related applications, including magnon-based logic, memory, sensing, and thermospin devices.
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Affiliation(s)
- Simin Pang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yaru Xie
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Shen
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Zhang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- CAS Center of Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100049, China
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11
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Sánchez Martín D, Oropesa-Nuñez R, Zardán Gómez de la Torre T. Rolling Circle Amplification on a Bead: Improving the Detection Time for a Magnetic Bioassay. ACS OMEGA 2023; 8:4391-4397. [PMID: 36743032 PMCID: PMC9893745 DOI: 10.1021/acsomega.2c07992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/10/2023] [Indexed: 06/18/2023]
Abstract
Detection of pathogens has become increasingly important, especially in the face of outbreaks and epidemics all over the world. Nucleic acid detection techniques provide a solid base to detect and identify pathogens. In recent years, magnetic sensors and magnetic labels have become of more interest due to their simplicity of use, low cost, and versatility. In this work, we have used the isothermal DNA amplification technique of rolling circle amplification (RCA) in combination with oligo-functionalized magnetic nanoparticles. Detection of RCA products takes place through specific binding between magnetic nanoparticles and RCA products. Upon binding, the relaxation frequency of the nanoparticle changes. This change was measured using an AC susceptometer. We showcase that the RCA time can be reduced for a quicker assay when performing the RCA on the surface of micrometer-sized beads, which consequently increases the hydrodynamic volume of the RCA products. This, in turn, increases the Brownian relaxation frequency shift of the nanoparticles upon binding. We performed optimization work to determine the ideal quantity of micrometer-sized particles, oligo-functionalized nanoparticles, and the amplification time of the RCA. We show that the detection of 0.75 fmol of preamplification synthetic target is possible with only 20 min of amplification time. Finally, we showcase the high specificity of the assay, as the functionalized nanoparticles are unable to bind to amplified DNA that does not match their labels. Overall, this paves the way for a simple bioassay that can be used without expensive laboratory equipment for detection of pathogens in outbreak settings and clinics around the world.
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Affiliation(s)
- Darío Sánchez Martín
- Department
of Material Sciences and Engineering, Division of Nanotechnology and
Functional Materials, Ångström Laboratory, Uppsala University, Box 534, SE-751 21 Uppsala, Sweden
| | - Reinier Oropesa-Nuñez
- Department
of Material Sciences and Engineering, Division of Solid-State Physics,
Ångström Laboratory, Uppsala
University, Box 534, SE-751
21 Uppsala, Sweden
| | - Teresa Zardán Gómez de la Torre
- Department
of Material Sciences and Engineering, Division of Nanotechnology and
Functional Materials, Ångström Laboratory, Uppsala University, Box 534, SE-751 21 Uppsala, Sweden
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12
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Ghosh S, Chaudhuri S, Roy P, Lahiri D. 4D Printing in Biomedical Engineering: a State-of-the-Art Review of Technologies, Biomaterials, and Application. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2022. [DOI: 10.1007/s40883-022-00288-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Manzin A, Ferrero R, Vicentini M. Application of Magnonic Crystals in Magnetic Bead Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3278. [PMID: 36234407 PMCID: PMC9565837 DOI: 10.3390/nano12193278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/12/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
This paper aims at studying a sensor concept for possible integration in magnetic field-based lab-on-chip devices that exploit ferromagnetic resonance (FMR) phenomena in magnonic crystals. The focus is on 2D magnetic antidot arrays, i.e., magnetic thin films with periodic non-magnetic inclusions (holes), recently proposed as magnetic field sensor elements operating in the gigahertz (GHz) range. The sensing mechanism is here demonstrated for magnetic nano/microbeads adsorbed on the surface of permalloy (Ni80Fe20) antidot arrays with a rhomboid lattice structure and variable hole size. Through extensive micromagnetic modelling analysis, it is shown that the antidot arrays can be used as both bead traps and high-sensitivity detectors, with performance that can be tuned as a function of bead size and magnetic moment. A key parameter for the detection mechanism is the antidot array hole size, which affects the FMR frequency shifts associated with the interaction between the magnetization configuration in the nanostructured film and the bead stray field. Possible applications of the proposed device concept include magnetic immunoassays, using magnetic nano/microbeads as probes for biomarker detection, and biomaterial manipulation.
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Affiliation(s)
- Alessandra Manzin
- Istituto Nazionale di Ricerca Metrologica (INRIM), 10135 Torino, Italy
| | - Riccardo Ferrero
- Istituto Nazionale di Ricerca Metrologica (INRIM), 10135 Torino, Italy
| | - Marta Vicentini
- Istituto Nazionale di Ricerca Metrologica (INRIM), 10135 Torino, Italy
- Politecnico di Torino, 10129 Torino, Italy
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14
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Afzali Naniz M, Askari M, Zolfagharian A, Afzali Naniz M, Bodaghi M. 4D Printing: A Cutting-edge Platform for Biomedical Applications. Biomed Mater 2022; 17. [PMID: 36044881 DOI: 10.1088/1748-605x/ac8e42] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/31/2022] [Indexed: 01/10/2023]
Abstract
Nature's materials have evolved over time to be able to respond to environmental stimuli by generating complex structures that can change their functions in response to distance, time, and direction of stimuli. A number of technical efforts are currently being made to improve printing resolution, shape fidelity, and printing speed to mimic the structural design of natural materials with three-dimensional (3D) printing. Unfortunately, this technology is limited by the fact that printed objects are static and cannot be reshaped dynamically in response to stimuli. In recent years, several smart materials have been developed that can undergo dynamic morphing in response to a stimulus, thus resolving this issue. Four-dimensional (4D) printing refers to a manufacturing process involving additive manufacturing, smart materials, and specific geometries. It has become an essential technology for biomedical engineering and has the potential to create a wide range of useful biomedical products. This paper will discuss the concept of 4D bioprinting and the recent developments in smart matrials, which can be actuated by different stimuli and be exploited to develop biomimetic materials and structures, with significant implications for pharmaceutics and biomedical research, as well as prospects for the future.
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Affiliation(s)
- Moqaddaseh Afzali Naniz
- University of New South Wales, Graduate School of Biomedical Engineering, Sydney, New South Wales, 2052, AUSTRALIA
| | - Mohsen Askari
- Nottingham Trent University, Clifton Manpus, Nottingham, Nottinghamshire, NG11 8NS, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Ali Zolfagharian
- Engineering, Deakin University Faculty of Science Engineering and Built Environment, Waurn Ponds, Geelong, Victoria, 3217, AUSTRALIA
| | - Mehrdad Afzali Naniz
- Shahid Beheshti University of Medical Sciences, School of Medicine, Tehran, Tehran, 19839-63113, Iran (the Islamic Republic of)
| | - Mahdi Bodaghi
- Department of Engineering , Nottingham Trent University - Clifton Campus, Clifton Campus, Nottingham, NG11 8NS, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
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15
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Jimenez VO, Hwang KY, Nguyen D, Rahman Y, Albrecht C, Senator B, Thiabgoh O, Devkota J, Bui VDA, Lam DS, Eggers T, Phan MH. Magnetoimpedance Biosensors and Real-Time Healthcare Monitors: Progress, Opportunities, and Challenges. BIOSENSORS 2022; 12:bios12070517. [PMID: 35884320 PMCID: PMC9313129 DOI: 10.3390/bios12070517] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/30/2022] [Accepted: 07/08/2022] [Indexed: 12/17/2022]
Abstract
A small DC magnetic field can induce an enormous response in the impedance of a soft magnetic conductor in various forms of wire, ribbon, and thin film. Also known as the giant magnetoimpedance (GMI) effect, this phenomenon forms the basis for the development of high-performance magnetic biosensors with magnetic field sensitivity down to the picoTesla regime at room temperature. Over the past decade, some state-of-the-art prototypes have become available for trial tests due to continuous efforts to improve the sensitivity of GMI biosensors for the ultrasensitive detection of biological entities and biomagnetic field detection of human activities through the use of magnetic nanoparticles as biomarkers. In this review, we highlight recent advances in the development of GMI biosensors and review medical devices for applications in biomedical diagnostics and healthcare monitoring, including real-time monitoring of respiratory motion in COVID-19 patients at various stages. We also discuss exciting research opportunities and existing challenges that will stimulate further study into ultrasensitive magnetic biosensors and healthcare monitors based on the GMI effect.
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Affiliation(s)
- Valery Ortiz Jimenez
- Laboratory for Advanced Materials and Sensors, Department of Physics, University of South Florida, Tampa, FL 33620, USA; (V.O.J.); (K.Y.H.); (D.N.); (Y.R.); (C.A.); (B.S.); (J.D.); (D.S.L.)
| | - Kee Young Hwang
- Laboratory for Advanced Materials and Sensors, Department of Physics, University of South Florida, Tampa, FL 33620, USA; (V.O.J.); (K.Y.H.); (D.N.); (Y.R.); (C.A.); (B.S.); (J.D.); (D.S.L.)
| | - Dang Nguyen
- Laboratory for Advanced Materials and Sensors, Department of Physics, University of South Florida, Tampa, FL 33620, USA; (V.O.J.); (K.Y.H.); (D.N.); (Y.R.); (C.A.); (B.S.); (J.D.); (D.S.L.)
- Department of Biomedical Engineering, University of South Florida, Tampa, FL 33620, USA
| | - Yasif Rahman
- Laboratory for Advanced Materials and Sensors, Department of Physics, University of South Florida, Tampa, FL 33620, USA; (V.O.J.); (K.Y.H.); (D.N.); (Y.R.); (C.A.); (B.S.); (J.D.); (D.S.L.)
| | - Claire Albrecht
- Laboratory for Advanced Materials and Sensors, Department of Physics, University of South Florida, Tampa, FL 33620, USA; (V.O.J.); (K.Y.H.); (D.N.); (Y.R.); (C.A.); (B.S.); (J.D.); (D.S.L.)
| | - Baylee Senator
- Laboratory for Advanced Materials and Sensors, Department of Physics, University of South Florida, Tampa, FL 33620, USA; (V.O.J.); (K.Y.H.); (D.N.); (Y.R.); (C.A.); (B.S.); (J.D.); (D.S.L.)
| | - Ongard Thiabgoh
- Department of Physics, Faculty of Science, Ubon Ratchathani University, Warinchamrap, Ubon Ratchathani 34190, Thailand
- Correspondence: (O.T.); (T.E.); (M.-H.P.); Tel.: +813-974-4322 (M.-H.P.)
| | - Jagannath Devkota
- Laboratory for Advanced Materials and Sensors, Department of Physics, University of South Florida, Tampa, FL 33620, USA; (V.O.J.); (K.Y.H.); (D.N.); (Y.R.); (C.A.); (B.S.); (J.D.); (D.S.L.)
- National Energy Technology Laboratory, Pittsburgh, PA 15236, USA
| | | | - Dao Son Lam
- Laboratory for Advanced Materials and Sensors, Department of Physics, University of South Florida, Tampa, FL 33620, USA; (V.O.J.); (K.Y.H.); (D.N.); (Y.R.); (C.A.); (B.S.); (J.D.); (D.S.L.)
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
| | - Tatiana Eggers
- Laboratory for Advanced Materials and Sensors, Department of Physics, University of South Florida, Tampa, FL 33620, USA; (V.O.J.); (K.Y.H.); (D.N.); (Y.R.); (C.A.); (B.S.); (J.D.); (D.S.L.)
- Correspondence: (O.T.); (T.E.); (M.-H.P.); Tel.: +813-974-4322 (M.-H.P.)
| | - Manh-Huong Phan
- Laboratory for Advanced Materials and Sensors, Department of Physics, University of South Florida, Tampa, FL 33620, USA; (V.O.J.); (K.Y.H.); (D.N.); (Y.R.); (C.A.); (B.S.); (J.D.); (D.S.L.)
- Correspondence: (O.T.); (T.E.); (M.-H.P.); Tel.: +813-974-4322 (M.-H.P.)
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16
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Huang S, Shan M, Zhang H, Sheng J, Zhou J, Cui C, Wei J, Zhu W, Lu J. 4D printing of soybean oil based shape memory polymer and its magnetic-sensitive composite via digital light processing. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2022.2029891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Shu Huang
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Mingyuan Shan
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Hang Zhang
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jie Sheng
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jianzhong Zhou
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Chengyun Cui
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jiean Wei
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Wenlong Zhu
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jinzhong Lu
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
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17
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Gao Y, Zhang J, Liang J, Yuan D, Zhao W. Research Progress of Poly(methyl methacrylate) Microspheres: Preparation, Functionalization and Application. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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18
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Borga P, Milesi F, Peserico N, Groppi C, Damin F, Sola L, Piedimonte P, Fincato A, Sampietro M, Chiari M, Melloni A, Bertacco R. Active Opto-Magnetic Biosensing with Silicon Microring Resonators. SENSORS (BASEL, SWITZERLAND) 2022; 22:3292. [PMID: 35590981 PMCID: PMC9105977 DOI: 10.3390/s22093292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/20/2022] [Accepted: 04/23/2022] [Indexed: 02/04/2023]
Abstract
Integrated optical biosensors are gaining increasing attention for their exploitation in lab-on-chip platforms. The standard detection method is based on the measurement of the shift of some optical quantity induced by the immobilization of target molecules at the surface of an integrated optical element upon biomolecular recognition. However, this requires the acquisition of said quantity over the whole hybridization process, which can take hours, during which any external perturbation (e.g., temperature and mechanical instability) can seriously affect the measurement and contribute to a sizeable percentage of invalid tests. Here, we present a different assay concept, named Opto-Magnetic biosensing, allowing us to optically measure off-line (i.e., post hybridization) tiny variations of the effective refractive index seen by microring resonators upon immobilization of magnetic nanoparticles labelling target molecules. Bound magnetic nanoparticles are driven in oscillation by an external AC magnetic field and the corresponding modulation of the microring transfer function, due to the effective refractive index dependence on the position of the particles above the ring, is recorded using a lock-in technique. For a model system of DNA biomolecular recognition we reached a lowest detected concentration on the order of 10 pm, and data analysis shows an expected effective refractive index variation limit of detection of 7.5×10-9 RIU, in a measurement time of just a few seconds.
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Affiliation(s)
- Piero Borga
- Dipartimento di Fisica, Politecnico di Milano, Via G. Colombo 81, 20133 Milano, Italy; (F.M.); (C.G.); (R.B.)
| | - Francesca Milesi
- Dipartimento di Fisica, Politecnico di Milano, Via G. Colombo 81, 20133 Milano, Italy; (F.M.); (C.G.); (R.B.)
| | - Nicola Peserico
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Via Ponzio, 34/5, 20133 Milano, Italy; (N.P.); (P.P.); (M.S.); (A.M.)
| | - Chiara Groppi
- Dipartimento di Fisica, Politecnico di Milano, Via G. Colombo 81, 20133 Milano, Italy; (F.M.); (C.G.); (R.B.)
| | - Francesco Damin
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” SCITEC CNR, Via Mario Bianco 9, 20131 Milano, Italy; (F.D.); (L.S.); (M.C.)
| | - Laura Sola
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” SCITEC CNR, Via Mario Bianco 9, 20131 Milano, Italy; (F.D.); (L.S.); (M.C.)
| | - Paola Piedimonte
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Via Ponzio, 34/5, 20133 Milano, Italy; (N.P.); (P.P.); (M.S.); (A.M.)
| | | | - Marco Sampietro
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Via Ponzio, 34/5, 20133 Milano, Italy; (N.P.); (P.P.); (M.S.); (A.M.)
| | - Marcella Chiari
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” SCITEC CNR, Via Mario Bianco 9, 20131 Milano, Italy; (F.D.); (L.S.); (M.C.)
| | - Andrea Melloni
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Via Ponzio, 34/5, 20133 Milano, Italy; (N.P.); (P.P.); (M.S.); (A.M.)
| | - Riccardo Bertacco
- Dipartimento di Fisica, Politecnico di Milano, Via G. Colombo 81, 20133 Milano, Italy; (F.M.); (C.G.); (R.B.)
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19
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Detection of Surface and Subsurface Flaws with Miniature GMR-Based Gradiometer. SENSORS 2022; 22:s22083097. [PMID: 35459081 PMCID: PMC9031852 DOI: 10.3390/s22083097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/14/2022] [Accepted: 04/15/2022] [Indexed: 11/17/2022]
Abstract
The eddy-current (EC) testing method is frequently utilized in the nondestructive inspection of conductive materials. To detect the minor and complex-shaped defects on the surface and in the underlying layers of a metallic sample, a miniature eddy-current probe with high sensitivity is preferred for enhancing the signal quality and spatial resolution of the obtained eddy-current images. In this work, we propose a novel design of a miniature eddy-current probe using a giant magnetoresistance (GMR) sensor fabricated on a silicon chip. The in-house-made GMR sensor comprises two cascaded spin-valve elements in parallel with an external variable resistor to form a Wheatstone bridge. The two elements on the chip are excited by the alternating magnetic field generated by a tiny coil aligned to the position that balances the background output of the bridge sensor. In this way, the two GMR elements behave effectively as an axial gradiometer with the bottom element sensitive to the surface and near-surface defects on a conductive specimen. The performance of the EC probe is verified by the numerical simulation and the corresponding experiments with machined defects on metallic samples. With this design, the geometric characteristics of the defects are clearly visualized with a spatial resolution of about 1 mm. The results demonstrate the feasibility and superiority of the proposed miniature GMR EC probe for characterizing the small and complex-shaped defects in multilayer conductive samples.
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20
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Zhu GP, Wang QY, Ma ZK, Wu SH, Guo YP. Droplet Manipulation under a Magnetic Field: A Review. BIOSENSORS 2022; 12:bios12030156. [PMID: 35323426 PMCID: PMC8946071 DOI: 10.3390/bios12030156] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/27/2022] [Accepted: 02/28/2022] [Indexed: 05/04/2023]
Abstract
The magnetic manipulation of droplets is one of the emerging magnetofluidic technologies that integrate multiple disciplines, such as electromagnetics, fluid mechanics and so on. The directly driven droplets are mainly composed of ferrofluid or liquid metal. This kind of magnetically induced droplet manipulation provides a remote, wireless and programmable approach beneficial for research and engineering applications, such as drug synthesis, biochemistry, sample preparation in life sciences, biomedicine, tissue engineering, etc. Based on the significant growth in the study of magneto droplet handling achieved over the past decades, further and more profound explorations in this field gained impetus, raising concentrations on the construction of a comprehensive working mechanism and the commercialization of this technology. Current challenges faced are not limited to the design and fabrication of the magnetic field, the material, the acquisition of precise and stable droplet performance, other constraints in processing speed and so on. The rotational devices or systems could give rise to additional issues on bulky appearance, high cost, low reliability, etc. Various magnetically introduced droplet behaviors, such as deformation, displacement, rotation, levitation, splitting and fusion, are mainly introduced in this work, involving the basic theory, functions and working principles.
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21
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Chepkasov IV, Sukhanova EV, Kvashnin AG, Zakaryan HA, Aghamalyan MA, Mamasakhlisov YS, Manakhov AM, Popov ZI, Kvashnin DG. Computational Design of Gas Sensors Based on V 3S 4 Monolayer. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:774. [PMID: 35269262 PMCID: PMC8912300 DOI: 10.3390/nano12050774] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/17/2022] [Accepted: 02/22/2022] [Indexed: 02/04/2023]
Abstract
Novel magnetic gas sensors are characterized by extremely high efficiency and low energy consumption, therefore, a search for a two-dimensional material suitable for room temperature magnetic gas sensors is a critical task for modern materials scientists. Here, we computationally discovered a novel ultrathin two-dimensional antiferromagnet V3S4, which, in addition to stability and remarkable electronic properties, demonstrates a great potential to be applied in magnetic gas sensing devices. Quantum-mechanical calculations within the DFT + U approach show the antiferromagnetic ground state of V3S4, which exhibits semiconducting electronic properties with a band gap of 0.36 eV. A study of electronic and magnetic response to the adsorption of various gas agents showed pronounced changes in properties with respect to the adsorption of NH3, NO2, O2, and NO molecules on the surface. The calculated energies of adsorption of these molecules were -1.25, -0.91, -0.59, and -0.93 eV, respectively. Obtained results showed the prospective for V3S4 to be used as effective sensing materials to detect NO2 and NO, for their capture, and for catalytic applications in which it is required to lower the dissociation energy of O2, for example, in oxygen reduction reactions. The sensing and reducing of NO2 and NO have great importance for improving environmental protection and sustainable development.
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Affiliation(s)
- Ilya V. Chepkasov
- Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205 Moscow, Russia;
| | - Ekaterina V. Sukhanova
- Emanuel Institute of Biochemical Physics RAS, 4 Kosygin Street, 119334 Moscow, Russia; (E.V.S.); (Z.I.P.); (D.G.K.)
| | - Alexander G. Kvashnin
- Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205 Moscow, Russia;
| | - Hayk A. Zakaryan
- Computational Materials Science Laboratory at the Center of Semiconductor Devices and Nanotechnology, Yerevan State University, 1 Alex Manoogian St., Yerevan 0025, Armenia; (H.A.Z.); (M.A.A.)
| | - Misha A. Aghamalyan
- Computational Materials Science Laboratory at the Center of Semiconductor Devices and Nanotechnology, Yerevan State University, 1 Alex Manoogian St., Yerevan 0025, Armenia; (H.A.Z.); (M.A.A.)
| | - Yevgeni Sh. Mamasakhlisov
- Department of Molecular Physics, Yerevan State University, 1 Alex Manoogian St., Yerevan 0025, Armenia;
- Department of Materials Technology and Structure of Electronic Technique, Russian-Armenian University, 123 Hovsep Emin St., Yerevan 0051, Armenia
| | - Anton M. Manakhov
- Aramco Innovations LLC, Aramco Research Center, 119234 Moscow, Russia;
| | - Zakhar I. Popov
- Emanuel Institute of Biochemical Physics RAS, 4 Kosygin Street, 119334 Moscow, Russia; (E.V.S.); (Z.I.P.); (D.G.K.)
| | - Dmitry G. Kvashnin
- Emanuel Institute of Biochemical Physics RAS, 4 Kosygin Street, 119334 Moscow, Russia; (E.V.S.); (Z.I.P.); (D.G.K.)
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22
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Uddin SM, Sayad A, Chan J, Skafidas E, Kwan P. Design and Optimisation of Elliptical-Shaped Planar Hall Sensor for Biomedical Applications. BIOSENSORS 2022; 12:108. [PMID: 35200368 PMCID: PMC8869978 DOI: 10.3390/bios12020108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/06/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
The magnetic beads detection-based immunoassay, also called magneto-immunoassay, has potential applications in point-of-care testing (POCT) due to its unique advantage of minimal background interference from the biological sample and associated reagents. While magnetic field detection technologies are well established for numerous applications in the military, as well as in geology, archaeology, mining, spacecraft, and mobile phones, adaptation into magneto-immunoassay is yet to be explored. The magnetic field biosensors under development tend to be multilayered and require an expensive fabrication process. A low-cost and affordable biosensing platform is required for an effective point-of-care diagnosis in a resource-limited environment. Therefore, we evaluated a single-layered magnetic biosensor in this study to overcome this limitation. The shape-induced magnetic anisotropy-based planar hall effect sensor was recently developed to detect a low-level magnetic field, but was not explored for medical application. In this study, the elliptical-shaped planar hall effect (EPHE) sensor was designed, fabricated, characterized, and optimized for the magneto-immunoassay, specifically. Nine sensor variants were designed and fabricated. A customized measurement setup incorporating a lock-in amplifier was used to quantify 4.5 µm magnetic beads in a droplet. The result indicated that the single-domain behaviour of the magnetic film and larger sensing area with a thinner magnetic film had the highest sensitivity. The developed sensor was tested with a range of magnetic bead concentrations, demonstrating a limit of detection of 200 beads/μL. The sensor performance encourages employing magneto-immunoassay towards developing a low-cost POCT device in the future.
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Affiliation(s)
- Shah Mukim Uddin
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Melbourne, VIC 3050, Australia; (S.M.U.); (J.C.); (E.S.)
| | - Abkar Sayad
- Department of Neuroscience, The Alfred Centre, Central Clinical School, Monash University, Melbourne, VIC 3004, Australia;
| | - Jianxiong Chan
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Melbourne, VIC 3050, Australia; (S.M.U.); (J.C.); (E.S.)
- Department of Neuroscience, The Alfred Centre, Central Clinical School, Monash University, Melbourne, VIC 3004, Australia;
| | - Efstratios Skafidas
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Melbourne, VIC 3050, Australia; (S.M.U.); (J.C.); (E.S.)
- Department of Electrical and Electronic Engineering, Melbourne School of Engineering, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Patrick Kwan
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Melbourne, VIC 3050, Australia; (S.M.U.); (J.C.); (E.S.)
- Department of Neuroscience, The Alfred Centre, Central Clinical School, Monash University, Melbourne, VIC 3004, Australia;
- Department of Electrical and Electronic Engineering, Melbourne School of Engineering, The University of Melbourne, Melbourne, VIC 3010, Australia
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23
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Applications of magnetic materials in the fabrication of microfluidic-based sensing systems: Recent advances. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107042] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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24
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Abdolhosseini M, Zandsalimi F, Moghaddam FS, Tavoosidana G. A review on colorimetric assays for DNA virus detection. J Virol Methods 2022; 301:114461. [PMID: 35031384 DOI: 10.1016/j.jviromet.2022.114461] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/05/2022] [Accepted: 01/08/2022] [Indexed: 12/22/2022]
Abstract
Early detection is one of the ways to deal with DNA virus widespread prevalence, and it is necessary to know new diagnostic methods and techniques. Colorimetric assays are one of the most advantageous methods in detecting viruses. These methods are based on color change, which can be seen either with the naked eye or with special devices. The aim of this study is to introduce and evaluate effective colorimetric methods based on amplification, nanoparticle, CRISPR/Cas, and Lateral flow in the diagnosis of DNA viruses and to discuss the effectiveness of each of the updated methods. Compared to the other methods, colorimetric assays are preferred for faster detection, high efficiency, cheaper cost, and high sensitivity and specificity. It is expected that the spread of these viruses can be prevented by identifying and developing new methods.
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Affiliation(s)
- Mansoreh Abdolhosseini
- Molecular Medicine Department, School of Advanced Medical Technologies, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Farshid Zandsalimi
- Molecular Medicine Department, School of Advanced Medical Technologies, Tehran University of Medical Sciences, Tehran, Iran
| | - Fahimeh Salasar Moghaddam
- Molecular Medicine Department, School of Advanced Medical Technologies, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Tavoosidana
- Molecular Medicine Department, School of Advanced Medical Technologies, Tehran University of Medical Sciences, Tehran, Iran.
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Chícharo A, Caetano DM, Cardoso S, Freitas P. Evolution in Automatized Detection of Cells: Advances in Magnetic Microcytometers for Cancer Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1379:413-444. [DOI: 10.1007/978-3-031-04039-9_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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26
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Hwang SH, Yang JJ, Oh YH, Ko DH, Sung H, Cho YU, Jang S, Park CJ, Oh HB. Microparticle-tagged image-based cell counting (ImmunoSpin) for CD4 + T cells. Mikrochim Acta 2021; 188:431. [PMID: 34822013 PMCID: PMC8616869 DOI: 10.1007/s00604-021-05070-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 10/15/2021] [Indexed: 11/25/2022]
Abstract
Affordable point-of-care (POC) CD4 + T lymphocyte counting techniques have been developed as alternatives to flow cytometry-based instruments caring for patients with human immunodeficiency virus (HIV)-1. However, POC CD4 enumeration technologies can be inaccurate. Here, we developed a microparticle-based visual detector of CD4 + T lymphocytes (ImmunoSpin) using microparticles conjugated with anti-CD4 antibodies, independent of microfluidic or fluorescence detection systems. Visual enumeration of CD4 + T cells under conventional light microscope was accurate compared to flow cytometry. Microparticle-tagged CD4 + T cells were well-recognized under a light microscope. ImmunoSpin showed very good precision (coefficients of variation of ImmunoSpin were ≤ 10%) and high correlation with clinical-grade flow cytometry for the enumeration of CD4 + T cells (y = 0.4232 + 0.9485 × for the %CD4 + T cell count, R2 = 0.99). At thresholds of 200 and 350 cells/µL, there was no misclassification of the ImmunoSpin system compared to the reference flow cytometry. ImmunoSpin showed clear differential classification of CD4 + T lymphocytes from granulocytes and monocytes. Because non-fluorescence microparticle-tags and cytospin slides are used in ImmunoSpin, they can be applied to an automatic digital image analyzer. Slide preparation allows long-term storage, no analysis time limitations, and image transfer in remote areas.
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Affiliation(s)
- Sang-Hyun Hwang
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - John Jeongseok Yang
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Yoon-Hee Oh
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Dae-Hyun Ko
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Heungsup Sung
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Young-Uk Cho
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Seongsoo Jang
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Chan-Jeoung Park
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Heung-Bum Oh
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea.
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Wen Y, Jiang D, Gavriilidis A, Besenhard MO. In-Silico Conceptualisation of Continuous Millifluidic Separators for Magnetic Nanoparticles. MATERIALS 2021; 14:ma14216635. [PMID: 34772161 PMCID: PMC8586940 DOI: 10.3390/ma14216635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/14/2021] [Accepted: 10/30/2021] [Indexed: 11/16/2022]
Abstract
Magnetic nanoparticles are researched intensively not only for biomedical applications, but also for industrial applications including wastewater treatment and catalytic processes. Although these particles have been shown to have interesting surface properties in their bare form, their magnetisation remains a key feature, as it allows for magnetic separation. This makes them a promising carrier for precious materials and enables recovery via magnetic fields that can be turned on and off on demand, rather than using complex (nano)filtration strategies. However, designing a magnetic separator is by no means trivial, as the magnetic field and its gradient, the separator dimensions, the particle properties (such as size and susceptibility), and the throughput must be coordinated. This is showcased here for a simple continuous electromagnetic separator design requiring no expensive materials or equipment and facilitating continuous operation. The continuous electromagnetic separator chosen was based on a current-carrying wire in the centre of a capillary, which generated a radially symmetric magnetic field that could be described using cylindrical coordinates. The electromagnetic separator design was tested in-silico using a Lagrangian particle-tracking model accounting for hydrodynamics, magnetophoresis, as well as particle diffusion. This computational approach enabled the determination of separation efficiencies for varying particle sizes, magnetic field strengths, separator geometries, and flow rates, which provided insights into the complex interplay between these design parameters. In addition, the model identified the separator design allowing for the highest separation efficiency and determined the retention potential in both single and multiple separators in series. The work demonstrated that throughputs of ~1/4 L/h could be achieved for 250–500 nm iron oxide nanoparticle solutions, using less than 10 separator units in series.
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Affiliation(s)
- Yanzhe Wen
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK;
| | - Dai Jiang
- Department of Electronic and Electrical Engineering, University College London, Torrington Place, London WC1E 7JE, UK;
| | - Asterios Gavriilidis
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK;
- Correspondence: (A.G.); (M.O.B.)
| | - Maximilian O. Besenhard
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK;
- School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
- Correspondence: (A.G.); (M.O.B.)
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Affiliation(s)
- Gungun Lin
- Institute for Biomedical Materials and Devices Faculty of Science University of Technology Sydney Ultimo New South Wales Australia
- ARC Research Hub for Integrated Device for End‐User Analysis at Low Levels Faculty of Science University of Technology Sydney Sydney New South Wales Australia
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Meander Thin-Film Biosensor Fabrication to Investigate the Influence of Structural Parameters on the Magneto-Impedance Effect. SENSORS 2021; 21:s21196514. [PMID: 34640832 PMCID: PMC8512765 DOI: 10.3390/s21196514] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/22/2021] [Accepted: 09/27/2021] [Indexed: 01/18/2023]
Abstract
Thin-film magneto-impedance (MI) biosensors have attracted significant attention due to their high sensitivity and easy miniaturization. However, further improvement is required to detect weak biomagnetic signals. Here, we report a meander thin-film biosensor preparation to investigate the fabrication parameters influencing the MI effect. Specifically, we hypothesized that an optimal film thickness and sensing area size ratio could be achieved to obtain a maximum MI ratio. A meander multilayer MI biosensor based on a NiFe/Cu/NiFe thin-film was designed and fabricated into 3-, 6-, and 9-turn models with film thicknesses of 3 µm and 6 µm. The 9-turn biosensor resembled the largest sensing area, while the 3- and 6-turn biosensors were designed with identical sensing areas. The results indicated that the NiFe film thickness of 6 µm with a sensing area size of 14.4 mm2 resembling a 9-turn MI biosensor is the optimal ratio yielding the maximum MI ratio of 238%, which is 70% larger than the 3- and 6-turn structures. The 3- and 6-turn MI biosensors exhibited similar characteristics where the MI ratio peaked at a similar value. Our results suggest that the MI ratio can be increased by increasing the sensing area size and film thickness rather than the number of turns. We showed that an optimal film thickness to sensing area size ratio is required to obtain a high MI ratio. Our findings will be useful for designing highly sensitive MI biosensors capable of detecting low biomagnetic signals.
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Besenhard MO, Jiang D, Pankhurst QA, Southern P, Damilos S, Storozhuk L, Demosthenous A, Thanh NTK, Dobson P, Gavriilidis A. Development of an in-line magnetometer for flow chemistry and its demonstration for magnetic nanoparticle synthesis. LAB ON A CHIP 2021; 21:3775-3783. [PMID: 34581389 DOI: 10.1039/d1lc00425e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Despite the wide usage of magnetic nanoparticles, it remains challenging to synthesise particles with properties that exploit each application's full potential. Time consuming experimental procedures and particle analysis hinder process development, which is commonly constrained to a handful of experiments without considering particle formation kinetics, reproducibility and scalability. Flow reactors are known for their potential of large-scale production and high-throughput screening of process parameters. These advantages, however, have not been utilised for magnetic nanoparticle synthesis where particle characterisation is performed, with a few exceptions, post-synthesis. To overcome this bottleneck, we developed a highly sensitive magnetometer for flow reactors to characterise magnetic nanoparticles in solution in-line and in real-time using alternating current susceptometry. This flow magnetometer enriches the flow-chemistry toolbox by facilitating continuous quality control and high-throughput screening of magnetic nanoparticle syntheses. The sensitivity required to monitor magnetic nanoparticle syntheses at the typically low concentrations (<100 mM of Fe) was achieved by comparing the signals induced in the sample and reference cell, each of which contained near-identical pairs of induction and pick-up coils. The reference cell was filled only with air, whereas the sample cell was a flow cell allowing sample solution to pass through. Balancing the flow and reference cell impedance with a newly developed electronic circuit was pivotal for the magnetometer's sensitivity. To showcase its potential, the flow magnetometer was used to monitor two iron oxide nanoparticle syntheses with well-known particle formation kinetics, i.e., co-precipitation syntheses with sodium carbonate and sodium hydroxide as base, which have been previously studied via synchrotron X-ray diffraction. The flow magnetometer facilitated batch (on-line) and flow (in-line) synthesis monitoring, providing new insights into the particle formation kinetics as well as, effect of temperature and pH. The compact lab-scale flow device presented here, opens up new possibilities for magnetic nanoparticle synthesis and manufacturing, including 1) early stage reaction characterisation 2) process monitoring and control and 3) high-throughput screening in combination with flow reactors.
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Affiliation(s)
- Maximilian O Besenhard
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
| | - Dai Jiang
- Department of Electronic and Electrical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Quentin A Pankhurst
- UCL Healthcare Biomagnetics Laboratory, University College London, 21 Albemarle Street, London W1S 4BS, UK
| | - Paul Southern
- UCL Healthcare Biomagnetics Laboratory, University College London, 21 Albemarle Street, London W1S 4BS, UK
| | - Spyridon Damilos
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
| | - Liudmyla Storozhuk
- UCL Healthcare Biomagnetics Laboratory, University College London, 21 Albemarle Street, London W1S 4BS, UK
| | - Andreas Demosthenous
- Department of Electronic and Electrical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Nguyen T K Thanh
- UCL Healthcare Biomagnetics Laboratory, University College London, 21 Albemarle Street, London W1S 4BS, UK
- UCL Nanomaterials Laboratory, University College London, 21 Albemarle Street, London W1S 4BS, UK
- Biophysics Group, Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, UK
| | - Peter Dobson
- The Queen's College, University of Oxford, Oxford OX1 4AW, UK
| | - Asterios Gavriilidis
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK.
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Reginka M, Hoang H, Efendi Ö, Merkel M, Huhnstock R, Holzinger D, Dingel K, Sick B, Bertinetti D, Herberg FW, Ehresmann A. Transport Efficiency of Biofunctionalized Magnetic Particles Tailored by Surfactant Concentration. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:8498-8507. [PMID: 34231364 DOI: 10.1021/acs.langmuir.1c00900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Controlled transport of surface-functionalized magnetic beads in a liquid medium is a central requirement for the handling of captured biomolecular targets in microfluidic lab-on-chip biosensors. Here, the influence of the physiological liquid medium on the transport characteristics of functionalized magnetic particles and on the functionality of the coupled protein is studied. These aspects are theoretically modeled and experimentally investigated for prototype superparamagnetic beads, surface-functionalized with green fluorescent protein immersed in buffer solution with different concentrations of a surfactant. The model reports on the tunability of the steady-state particle substrate separation distance to prevent their surface sticking via the choice of surfactant concentration. Experimental and theoretical average velocities are discussed for a ratchet-like particle motion induced by a dynamic external field superposed on a static locally varying magnetic field landscape. The developed model and experiment may serve as a basis for quantitative forecasts on the functionality of magnetic particle transport-based lab-on-chip devices.
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Affiliation(s)
- Meike Reginka
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel, Germany
- Artificial Intelligence Methods for Experiment Design (AIM-ED), Joint Lab Helmholtzzentrum für Materialien und Energie, Berlin (HZB) and Kassel University, cc Gregor Hartmann, Hahn-Meitner Platz 1, 14109 Berlin, Germany
| | - Hai Hoang
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel, Germany
| | - Özge Efendi
- Institute of Biology and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel, Germany
| | - Maximilian Merkel
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel, Germany
- Artificial Intelligence Methods for Experiment Design (AIM-ED), Joint Lab Helmholtzzentrum für Materialien und Energie, Berlin (HZB) and Kassel University, cc Gregor Hartmann, Hahn-Meitner Platz 1, 14109 Berlin, Germany
| | - Rico Huhnstock
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel, Germany
- Artificial Intelligence Methods for Experiment Design (AIM-ED), Joint Lab Helmholtzzentrum für Materialien und Energie, Berlin (HZB) and Kassel University, cc Gregor Hartmann, Hahn-Meitner Platz 1, 14109 Berlin, Germany
| | - Dennis Holzinger
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel, Germany
| | - Kristina Dingel
- Artificial Intelligence Methods for Experiment Design (AIM-ED), Joint Lab Helmholtzzentrum für Materialien und Energie, Berlin (HZB) and Kassel University, cc Gregor Hartmann, Hahn-Meitner Platz 1, 14109 Berlin, Germany
- Intelligent Embedded Systems, University of Kassel, Wilhelmshöher Allee 71-73, D-34121 Kassel, Germany
| | - Bernhard Sick
- Artificial Intelligence Methods for Experiment Design (AIM-ED), Joint Lab Helmholtzzentrum für Materialien und Energie, Berlin (HZB) and Kassel University, cc Gregor Hartmann, Hahn-Meitner Platz 1, 14109 Berlin, Germany
- Intelligent Embedded Systems, University of Kassel, Wilhelmshöher Allee 71-73, D-34121 Kassel, Germany
| | - Daniela Bertinetti
- Institute of Biology and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel, Germany
| | - Friedrich W Herberg
- Institute of Biology and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel, Germany
| | - Arno Ehresmann
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Strasse 40, D-34132 Kassel, Germany
- Artificial Intelligence Methods for Experiment Design (AIM-ED), Joint Lab Helmholtzzentrum für Materialien und Energie, Berlin (HZB) and Kassel University, cc Gregor Hartmann, Hahn-Meitner Platz 1, 14109 Berlin, Germany
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Ali A, Shah T, Ullah R, Zhou P, Guo M, Ovais M, Tan Z, Rui Y. Review on Recent Progress in Magnetic Nanoparticles: Synthesis, Characterization, and Diverse Applications. Front Chem 2021; 9:629054. [PMID: 34327190 PMCID: PMC8314212 DOI: 10.3389/fchem.2021.629054] [Citation(s) in RCA: 125] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 06/29/2021] [Indexed: 12/12/2022] Open
Abstract
Diverse applications of nanoparticles (NPs) have revolutionized various sectors in society. In the recent decade, particularly magnetic nanoparticles (MNPs) have gained enormous interest owing to their applications in specialized areas such as medicine, cancer theranostics, biosensing, catalysis, agriculture, and the environment. Controlled surface engineering for the design of multi-functional MNPs is vital for achieving desired application. The MNPs have demonstrated great efficacy as thermoelectric materials, imaging agents, drug delivery vehicles, and biosensors. In the present review, first we have briefly discussed main synthetic methods of MNPs, followed by their characterizations and composition. Then we have discussed the potential applications of MNPs in different with representative examples. At the end, we gave an overview on the current challenges and future prospects of MNPs. This comprehensive review not only provides the mechanistic insight into the synthesis, functionalization, and application of MNPs but also outlines the limits and potential prospects.
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Affiliation(s)
- Arbab Ali
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing, China
| | - Tufail Shah
- College of Land Science and Technology, China Agricultural University, Beijing, China
| | - Rehmat Ullah
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Pingfan Zhou
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Manlin Guo
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Muhammad Ovais
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing, China
| | - Zhiqiang Tan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - YuKui Rui
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
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Abstract
Local crystallization of ferromagnetic layers is crucial in the successful realization of miniaturized tunneling magnetoresistance (TMR) devices. In the case of Co–Fe–B TMR devices, used most successfully so far in applications and devices, Co–Fe–B layers are initially deposited in an amorphous state and annealed post-deposition to induce crystallization in Co–Fe, thereby increasing the device performance. In this work, first direct proof of locally triggered crystallization of 10 nm thick Co–Fe–B films by laser irradiation is provided by means of X-ray diffraction (XRD) using synchrotron radiation. A comparison with furnace annealing is performed for benchmarking purposes, covering different annealing parameters, including temperature and duration in the case of furnace annealing, as well as laser intensity and scanning speed for the laser annealing. Films of Co–Fe–B with different stoichiometry sandwiched between a Ru and a Ta or MgO layer were systematically assessed by XRD and SQUID magnetometry in order to elucidate the crystallization mechanisms. The transformation of Co–Fe–B films from amorphous to crystalline is revealed by the presence of pronounced CoFe(110) and/or CoFe(200) reflexes in the XRD θ-2θ scans, depending on the capping layer. For a certain window of parameters, comparable crystallization yields are obtained with furnace and laser annealing. Samples with an MgO capping layer required a slightly lower laser intensity to achieve equivalent Co–Fe crystallization yields, highlighting the potential of laser annealing to locally enhance the TMR ratio.
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Abedini-Nassab R, Pouryosef Miandoab M, Şaşmaz M. Microfluidic Synthesis, Control, and Sensing of Magnetic Nanoparticles: A Review. MICROMACHINES 2021; 12:768. [PMID: 34210058 PMCID: PMC8306075 DOI: 10.3390/mi12070768] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/22/2021] [Accepted: 06/27/2021] [Indexed: 02/06/2023]
Abstract
Magnetic nanoparticles have attracted significant attention in various disciplines, including engineering and medicine. Microfluidic chips and lab-on-a-chip devices, with precise control over small volumes of fluids and tiny particles, are appropriate tools for the synthesis, manipulation, and evaluation of nanoparticles. Moreover, the controllability and automation offered by the microfluidic chips in combination with the unique capabilities of the magnetic nanoparticles and their ability to be remotely controlled and detected, have recently provided tremendous advances in biotechnology. In particular, microfluidic chips with magnetic nanoparticles serve as sensitive, high throughput, and portable devices for contactless detecting and manipulating DNAs, RNAs, living cells, and viruses. In this work, we review recent fundamental advances in the field with a focus on biomedical applications. First, we study novel microfluidic-based methods in synthesizing magnetic nanoparticles as well as microparticles encapsulating them. We review both continues-flow and droplet-based microreactors, including the ones based on the cross-flow, co-flow, and flow-focusing methods. Then, we investigate the microfluidic-based methods for manipulating tiny magnetic particles. These manipulation techniques include the ones based on external magnets, embedded micro-coils, and magnetic thin films. Finally, we review techniques invented for the detection and magnetic measurement of magnetic nanoparticles and magnetically labeled bioparticles. We include the advances in anisotropic magnetoresistive, giant magnetoresistive, tunneling magnetoresistive, and magnetorelaxometry sensors. Overall, this review covers a wide range of the field uniquely and provides essential information for designing "lab-on-a-chip" systems for synthesizing magnetic nanoparticles, labeling bioparticles with them, and sorting and detecting them on a single chip.
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Affiliation(s)
- Roozbeh Abedini-Nassab
- Department of Biomedical Engineering, University of Neyshabur, Neyshabur 9319774446, Iran
| | | | - Merivan Şaşmaz
- Department of Electrical and Electronic Engineering, Faculty of Engineering, Adiyaman University, Adiyaman 02040, Turkey;
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Yang M, Gao Y, Liu Y, Yang G, Zhao CX, Wu KJ. Integration of microfluidic systems with external fields for multiphase process intensification. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116450] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Wang C, Liu M, Wang Z, Li S, Deng Y, He N. Point-of-care diagnostics for infectious diseases: From methods to devices. NANO TODAY 2021; 37:101092. [PMID: 33584847 PMCID: PMC7864790 DOI: 10.1016/j.nantod.2021.101092] [Citation(s) in RCA: 218] [Impact Index Per Article: 72.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 01/22/2021] [Accepted: 01/23/2021] [Indexed: 05/04/2023]
Abstract
The current widespread of COVID-19 all over the world, which is caused by SARS-CoV-2 virus, has again emphasized the importance of development of point-of-care (POC) diagnostics for timely prevention and control of the pandemic. Compared with labor- and time-consuming traditional diagnostic methods, POC diagnostics exhibit several advantages such as faster diagnostic speed, better sensitivity and specificity, lower cost, higher efficiency and ability of on-site detection. To achieve POC diagnostics, developing POC detection methods and correlated POC devices is the key and should be given top priority. The fast development of microfluidics, micro electro-mechanical systems (MEMS) technology, nanotechnology and materials science, have benefited the production of a series of portable, miniaturized, low cost and highly integrated POC devices for POC diagnostics of various infectious diseases. In this review, various POC detection methods for the diagnosis of infectious diseases, including electrochemical biosensors, fluorescence biosensors, surface-enhanced Raman scattering (SERS)-based biosensors, colorimetric biosensors, chemiluminiscence biosensors, surface plasmon resonance (SPR)-based biosensors, and magnetic biosensors, were first summarized. Then, recent progresses in the development of POC devices including lab-on-a-chip (LOC) devices, lab-on-a-disc (LOAD) devices, microfluidic paper-based analytical devices (μPADs), lateral flow devices, miniaturized PCR devices, and isothermal nucleic acid amplification (INAA) devices, were systematically discussed. Finally, the challenges and future perspectives for the design and development of POC detection methods and correlated devices were presented. The ultimate goal of this review is to provide new insights and directions for the future development of POC diagnostics for the management of infectious diseases and contribute to the prevention and control of infectious pandemics like COVID-19.
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Affiliation(s)
- Chao Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China
- Department of Biomedical Engineering, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing 211166, Jiangsu, PR China
| | - Mei Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China
| | - Zhifei Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China
| | - Song Li
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, PR China
| | - Yan Deng
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, PR China
| | - Nongyue He
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, PR China
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37
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Guo Z, Poot AA, Grijpma DW. Advanced polymer-based composites and structures for biomedical applications. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110388] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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38
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Shinde PV, Rout CS. Magnetic gas sensing: working principles and recent developments. NANOSCALE ADVANCES 2021; 3:1551-1568. [PMID: 36132571 PMCID: PMC9416806 DOI: 10.1039/d0na00826e] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 01/22/2021] [Indexed: 05/05/2023]
Abstract
Gas sensors work on the principle of transforming the gas adsorption effects on the surface of the active material into a detectable signal in terms of its changed electrical, optical, thermal, mechanical, magnetic (magnetization and spin), and piezoelectric properties. In magnetic gas sensors, the change in the magnetic properties of the active materials is measured by one of the approaches such as Hall effect, magnetization, spin orientation, ferromagnetic resonance, magneto-optical Kerr effect, and magneto-static wave oscillation effect. The disadvantages of different types of gas sensors include their chemical selectivity and sensitivity to humidity and high-temperature operation. For example, in the case of chemiresistive-type gas sensors, the change in the sensor resistance can drastically vary in the real environment due to the presence of other gas species and the overall electrical effect is quite complex due to simultaneous surface reactions. Further, it is not easy to make stable contacts for powdered samples for the conventional electrical property-based gas sensors. Fire hazard is another issue for the electrical property-based hydrogen gas sensors due to their flammable nature at higher operating temperature. In this regard, to solve these issues, magnetic gas sensor concepts have emerged, in which the magnetic properties of the materials get modified when exposed to gas molecules. In this review article, the working principles, fundamentals, recent developments, and future perspectives in magnetic gas sensors are reviewed. Finally, the prospects and opportunities in these exciting fields are also commented upon based on their current progress.
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Affiliation(s)
- Pratik V Shinde
- Centre for Nano and Material Sciences, Jain University Jain Global Campus, Jakkasandra, Ramanagaram Bangalore 562112 India
| | - Chandra Sekhar Rout
- Centre for Nano and Material Sciences, Jain University Jain Global Campus, Jakkasandra, Ramanagaram Bangalore 562112 India
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Ha M, Cañón Bermúdez GS, Kosub T, Mönch I, Zabila Y, Oliveros Mata ES, Illing R, Wang Y, Fassbender J, Makarov D. Printable and Stretchable Giant Magnetoresistive Sensors for Highly Compliant and Skin-Conformal Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005521. [PMID: 33533129 DOI: 10.1002/adma.202005521] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/22/2020] [Indexed: 06/12/2023]
Abstract
Highly compliant electronics, naturally conforming to human skin, represent a paradigm shift in the interplay with the surroundings. Solution-processable printing technologies are yet to be developed to comply with requirements to mechanical conformability of on-skin appliances. Here, it is demonstrated that high-performance spintronic elements can be printed on ultrathin 3 µm thick polymeric foils enabling the mechanically imperceptible printed magnetoelectronics, which can adapt to the periodic buckling surface to be biaxially stretched over 100%. They constitute the first example of printed and stretchable giant magnetoresistive sensors, revealing 2 orders of magnitude improvements in mechanical stability and sensitivity at small magnetic fields, compared to the state-of-the-art printed magnetoelectronics. The key enabler of this performance enhancement is the use of elastomeric triblock copolymers as a binder for the magnetosensitive paste. Even when bent to a radius of 16 µm, the sensors printed on ultrathin foils remain intact and possess unmatched sensitivity for printed magnetoelectronics of 3 T-1 in a low magnetic field of 0.88 mT. The compliant printed sensors can be used as components of on-skin interactive electronics as it is demonstrated with a touchless control of virtual objects including zooming in and out of interactive maps and scrolling through electronic documents.
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Affiliation(s)
- Minjeong Ha
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, Dresden, 01328, Germany
| | - Gilbert Santiago Cañón Bermúdez
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, Dresden, 01328, Germany
| | - Tobias Kosub
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, Dresden, 01328, Germany
| | - Ingolf Mönch
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, Dresden, 01328, Germany
| | - Yevhen Zabila
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, Dresden, 01328, Germany
- The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, 31-342, Poland
| | - Eduardo Sergio Oliveros Mata
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, Dresden, 01328, Germany
| | - Rico Illing
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, Dresden, 01328, Germany
| | - Yakun Wang
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, Dresden, 01328, Germany
| | - Jürgen Fassbender
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, Dresden, 01328, Germany
| | - Denys Makarov
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V., Bautzner Landstrasse 400, Dresden, 01328, Germany
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Yamaguchi Y, Yamamoto T. One-Dimensional Flow of Bacteria on an Electrode Rail by Dielectrophoresis: Toward Single-Cell-Based Analysis. MICROMACHINES 2021; 12:mi12020123. [PMID: 33498919 PMCID: PMC7911595 DOI: 10.3390/mi12020123] [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: 12/23/2020] [Revised: 01/17/2021] [Accepted: 01/21/2021] [Indexed: 12/15/2022]
Abstract
Many applications in biotechnology and medicine, among other disciplines, require the rapid enumeration of bacteria, preferably using miniaturized portable devices. Microfluidic technology is expected to solve this miniaturization issue. In the enumeration of bacteria in microfluidic devices, the technique of aligning bacteria in a single line prior to counting is the key to an accurate count at single-bacterium resolution. Here, we describe the numerical and experimental evaluation of a device utilizing a dielectrophoretic force to array bacteria in a single line, allowing their facile numeration. The device comprises a channel to flow bacteria, two counter electrodes, and a capture electrode several microns or less in width for arranging bacteria in a single line. When the capture electrode is narrower than the diameter of a bacterium, the entrapment efficiency of the one-dimensional array is 80% or more within 2 s. Furthermore, since some cell-sorting applications require bacteria to move against the liquid flow, we demonstrated that bacteria can move in a single line in the off-axial direction tilted 30° from the flow direction. Our findings provide the basis for designing miniature, portable devices for evaluating bacteria with single-cell accuracy.
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41
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Liu Y, Lin G, Chen Y, Mönch I, Makarov D, Walsh BJ, Jin D. Coding and decoding stray magnetic fields for multiplexing kinetic bioassay platform. LAB ON A CHIP 2020; 20:4561-4571. [PMID: 33146648 DOI: 10.1039/d0lc00848f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Polymer microspheres can be fluorescently-coded for multiplexing molecular analysis, but their usage has been limited by fluorescent quenching and bleaching and crowded spectral domain with issues of cross-talks and background interference. Each bioassay step of mixing and separation of analytes and reagents require off-line particle handling procedures. Here, we report that stray magnetic fields can code and decode a collection of hierarchically-assembled beads. By the microfluidic assembling of mesoscopic superparamagnetic cores, diverse and non-volatile stray magnetic field response can be built in the series of microscopic spheres, dumbbells, pears, chains and triangles. Remarkably, the set of stray magnetic field fingerprints are readily discerned by a compact giant magnetoresistance sensor for parallelised screening of multiple distinctive pathogenic DNAs. This opens up the magneto-multiplexing opportunity and could enable streamlined assays to incorporate magneto-mixing, washing, enrichment and separation of analytes. This strategy therefore suggests a potential point-of-care testing solution for efficient kinetic assays.
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Affiliation(s)
- Yuan Liu
- Institute for Biomedical Materials and Devices, Faculty of Science, The University of Technology Sydney, Ultimo, New South Wales 2007, Australia.
| | - Gungun Lin
- Institute for Biomedical Materials and Devices, Faculty of Science, The University of Technology Sydney, Ultimo, New South Wales 2007, Australia.
| | - Yinghui Chen
- Institute for Biomedical Materials and Devices, Faculty of Science, The University of Technology Sydney, Ultimo, New South Wales 2007, Australia.
| | - Ingolf Mönch
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V, Bautzner Landstrasse 400, 01328, Dresden, Germany
| | - Denys Makarov
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V, Bautzner Landstrasse 400, 01328, Dresden, Germany
| | - Bradley J Walsh
- Minomic International Ltd, Macquarie Park, NSW 2113, Australia
| | - Dayong Jin
- Institute for Biomedical Materials and Devices, Faculty of Science, The University of Technology Sydney, Ultimo, New South Wales 2007, Australia. and UTS-SUStech Joint Research Centre for Biomedical Materials & Devices, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, China
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Gordon-Wylie SW, Ness DB, Shi Y, Mirza SK, Paulsen KD, Weaver JB. Measuring protein biomarker concentrations using antibody tagged magnetic nanoparticles. Biomed Phys Eng Express 2020; 6. [PMID: 34676103 DOI: 10.1088/2057-1976/abc45b] [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] [Indexed: 12/24/2022]
Abstract
Under physiological conditions biomarker concentrations tend to rise and fall over time e.g. for inflammation. Ex vivo measurements provide a snapshot in time of biomarker concentrations, which is useful, but limited. Approaching real time monitoring of biomarker concentration(s) using a wearable, implantable or injectable in vivo sensor is therefore an appealing target. As an early step towards developing an in vivo biomarker sensor, antibody (AB) tagged magnetic nanoparticles (NPs) are used here to demonstrate the in vitro measurement of ~5 distinct biomarkers with high specificity and sensitivity. In previous work, aptamers were used to target a given biomarker in vitro and generate magnetic clusters that exhibit a characteristic rotational signature quite different from free NPs. Here the method is expanded to detect a much wider range of biomarkers using polyclonal ABs attached to the surface of the NPs. Commercial ABs exist for a wide range of targets allowing accurate and specific concentration measurements for most significant biomarkers. We show sufficient detection sensitivity, using an in-house spectrometer to measure the rotational signatures of the NPs, to assess physiological concentrations of hormones, cytokines and other signaling molecules. Detection limits for biomarkers drawn mainly from pain and inflammation targets were: 10 pM for mouse Granzyme B (mGZM-B), 40 pM for mouse interferon-gamma (mIFN-γ), 7 pM for mouse interleukin-6 (mIL-6), 40 pM for rat interleukin-6 (rIL-6), 40 pM for mouse vascular endothelial growth factor (mVEGF) and 250 pM for rat calcitonin gene related peptide (rCGRP). Much lower detection limits are certainly possible using improved spectrometers and nanoparticles.
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Affiliation(s)
- Scott W Gordon-Wylie
- Thayer School of Engineering, Dartmouth College, Hanover, United States of America
| | - Dylan B Ness
- Dartmouth Hitchcock Medical Center, Lebanon, United States of America
| | - Yipeng Shi
- Department of Physics, Dartmouth College, Hanover, United States of America
| | - Sohail K Mirza
- Thayer School of Engineering, Dartmouth College, Hanover, United States of America
| | - Keith D Paulsen
- Thayer School of Engineering, Dartmouth College, Hanover, United States of America.,Norris Cotton Cancer Center, Lebanon, United States of America
| | - John B Weaver
- Thayer School of Engineering, Dartmouth College, Hanover, United States of America.,Department of Physics, Dartmouth College, Hanover, United States of America.,Dartmouth Hitchcock Medical Center, Lebanon, United States of America
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43
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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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Wetterau L, Abert C, Suess D, Albrecht M, Witzigmann B. Micromagnetic Simulations of Submicron Vortex Structures for the Detection of Superparamagnetic Labels. SENSORS (BASEL, SWITZERLAND) 2020; 20:s20205819. [PMID: 33076250 PMCID: PMC7602454 DOI: 10.3390/s20205819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/07/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
We present a numerical investigation on the detection of superparamagnetic labels using a giant magnetoresistance (GMR) vortex structure. For this purpose, the Landau-Lifshitz-Gilbert equation was solved numerically applying an external z-field for the activation of the superparamagnetic label. Initially, the free layer's magnetization change due to the stray field of the label is simulated. The electric response of the GMR sensor is calculated by applying a self-consistent spin-diffusion model to the precomputed magnetization configurations. It is shown that the soft-magnetic free layer reacts on the stray field of the label by shifting the magnetic vortex orthogonally to the shift direction of the label. As a consequence, the electric potential of the GMR sensor changes significantly for label shifts parallel or antiparallel to the pinning of the fixed layer. Depending on the label size and its distance to the sensor, the GMR sensor responds, changing the electric potential from 26.6 mV to 28.3 mV.
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Affiliation(s)
- Lukas Wetterau
- Computational Electronics and Photonics and CINSaT, University of Kassel, 34121 Kassel, Germany;
| | - Claas Abert
- Physics of Functional Materials, University of Vienna, 1090 Vienna, Austria; (C.A.); (D.S.)
| | - Dieter Suess
- Physics of Functional Materials, University of Vienna, 1090 Vienna, Austria; (C.A.); (D.S.)
| | - Manfred Albrecht
- Institute of Physics, University of Augsburg, 86159 Augsburg, Germany;
| | - Bernd Witzigmann
- Computational Electronics and Photonics and CINSaT, University of Kassel, 34121 Kassel, Germany;
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45
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Schütt J, Illing R, Volkov O, Kosub T, Granell PN, Nhalil H, Fassbender J, Klein L, Grosz A, Makarov D. Two Orders of Magnitude Boost in the Detection Limit of Droplet-Based Micro-Magnetofluidics with Planar Hall Effect Sensors. ACS OMEGA 2020; 5:20609-20617. [PMID: 32832814 PMCID: PMC7439703 DOI: 10.1021/acsomega.0c02892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
Magnetofluidics is a dynamic research field, which requires novel sensor solutions to boost the detection limit of tiny quantities of magnetized objects. Here, we present a sensing strategy relying on planar Hall effect sensors in droplet-based micro-magnetofluidics for the detection of a multiphase liquid flow, i.e., superparamagnetic aqueous droplets in an oil carrier phase. The high resolution of the sensor allows the detection of nanoliter-sized superparamagnetic droplets with a concentration of 0.58 mg/cm3, even when they are biased in a geomagnetic field only. The limit of detection can be boosted another order of magnitude, reaching 0.04 mg/cm3 (1.4 million particles in a single 100 nL droplet) when a magnetic field of 5 mT is applied to bias the droplets. With this performance, our sensing platform outperforms the state-of-the-art solutions in droplet-based micro-magnetofluidics by a factor of 100. This allows us to detect ferrofluid droplets in clinically and biologically relevant concentrations and even below without the need of externally applied magnetic fields. These results open the route for new strategies of the utilization of ferrofluids in microfluidic geometries in, e.g., bio(-chemical) or medical applications.
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Affiliation(s)
- Julian Schütt
- Helmholtz-Zentrum
Dresden-Rossendorf e.V., Institute of Ion
Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Rico Illing
- Helmholtz-Zentrum
Dresden-Rossendorf e.V., Institute of Ion
Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Oleksii Volkov
- Helmholtz-Zentrum
Dresden-Rossendorf e.V., Institute of Ion
Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Tobias Kosub
- Helmholtz-Zentrum
Dresden-Rossendorf e.V., Institute of Ion
Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Pablo Nicolás Granell
- Helmholtz-Zentrum
Dresden-Rossendorf e.V., Institute of Ion
Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
- Escuela
de Ciencia y Tecnología, UNSAM, Campus Miguelete, B1650KNA San Martín, Buenos Aires, Argentina
- Instituto
Nacional de Tecnología Industrial, Av. Gral Paz 5445, B1650KNA San Martín, Buenos Aires, Argentina
| | - Hariharan Nhalil
- Department
of Physics & Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Jürgen Fassbender
- Helmholtz-Zentrum
Dresden-Rossendorf e.V., Institute of Ion
Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Lior Klein
- Department
of Physics & Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Asaf Grosz
- Department
of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beersheba 84105, Israel
| | - Denys Makarov
- Helmholtz-Zentrum
Dresden-Rossendorf e.V., Institute of Ion
Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
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46
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Ren C, Bayin Q, Feng S, Fu Y, Ma X, Guo J. Biomarkers detection with magnetoresistance-based sensors. Biosens Bioelectron 2020; 165:112340. [PMID: 32729483 DOI: 10.1016/j.bios.2020.112340] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/27/2020] [Accepted: 05/28/2020] [Indexed: 01/06/2023]
Abstract
Biosensing platforms for detecting and quantifying biomarkers have played an important role in the past decade. Among them, platforms based on magnetoresistance (MR) sensing technology are attractive. The resistance value of the material changes with the externally applied magnetic field is the core mechanism of MR sensing technology. A typical MR-based sensor has the characteristics of cost-effective, simple operation, high compactness, and high sensitivity. Moreover, using magnetic nanoparticles (MNPs) as labels, MR-based sensors have the ability to overcome the high background noise of complex samples, so they are particularly suitable for point-of-care testing (POCT). However, the problem still exists. How to obtain high-throughput, that is, multiple detections of biomarkers in MR-based sensors, thereby improving detection efficiency and reducing the burden on patients is an important issue in future work. This paper reviews three MR-based detection technologies for the detection of biomarkers, i.e., anisotropic magnetoresistance (AMR), giant magnetoresistance (GMR), and tunneling magnetoresistance (TMR). Based on these three common technologies, different typical applications that include biomedical diagnosis, food safety, and environmental monitoring are presented. Furthermore, the existing MR-based detection method is better expanded to make it more in line with present detection needs by combining different advanced technologies including microfluidics, Microelectromechanical systems (MEMS), and Immunochromatographic test strips (ICTS). And then, a brief discussion of current challenges and perspectives of MR-based sensors are pointed out.
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Affiliation(s)
- Chunhui Ren
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, PR China
| | - Qiaoge Bayin
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, PR China
| | - Shilun Feng
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798, Singapore
| | - Yusheng Fu
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, PR China
| | - Xing Ma
- State Key Lab of Advanced Welding and Joining, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China; Ministry of Education Key Lab of Micro-systems and Micro-structures Manufacturing, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Jinhong Guo
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, PR China.
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Wang Z, Hu T, Liang R, Wei M. Application of Zero-Dimensional Nanomaterials in Biosensing. Front Chem 2020; 8:320. [PMID: 32373593 PMCID: PMC7182656 DOI: 10.3389/fchem.2020.00320] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 03/30/2020] [Indexed: 12/15/2022] Open
Abstract
Zero-dimensional (0D) nanomaterials, including graphene quantum dots (GQDs), carbon quantum dots (CQDs), fullerenes, inorganic quantum dots (QDs), magnetic nanoparticles (MNPs), noble metal nanoparticles, upconversion nanoparticles (UCNPs) and polymer dots (Pdots), have attracted extensive research interest in the field of biosensing in recent years. Benefiting from the ultra-small size, quantum confinement effect, excellent physical and chemical properties and good biocompatibility, 0D nanomaterials have shown great potential in ion detection, biomolecular recognition, disease diagnosis and pathogen detection. Here we first introduce the structures and properties of different 0D nanomaterials. On this basis, recent progress and application examples of 0D nanomaterials in the field of biosensing are discussed. In the last part, we summarize the research status of 0D nanomaterials in the field of biosensing and anticipate the development prospects and future challenges in this field.
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Affiliation(s)
| | | | - Ruizheng Liang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Min Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
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Giraud M, Delapierre FD, Wijkhuisen A, Bonville P, Thévenin M, Cannies G, Plaisance M, Paul E, Ezan E, Simon S, Fermon C, Féraudet-Tarisse C, Jasmin-Lebras G. Evaluation of In-Flow Magnetoresistive Chip Cell-Counter as a Diagnostic Tool. BIOSENSORS 2019; 9:E105. [PMID: 31480476 PMCID: PMC6784370 DOI: 10.3390/bios9030105] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 08/27/2019] [Accepted: 08/29/2019] [Indexed: 12/25/2022]
Abstract
Inexpensive simple medical devices allowing fast and reliable counting of whole cells are of interest for diagnosis and treatment monitoring. Magnetic-based labs on a chip are one of the possibilities currently studied to address this issue. Giant magnetoresistance (GMR) sensors offer both great sensitivity and device integrability with microfluidics and electronics. When used on a dynamic system, GMR-based biochips are able to detect magnetically labeled individual cells. In this article, a rigorous evaluation of the main characteristics of this magnetic medical device (specificity, sensitivity, time of use and variability) are presented and compared to those of both an ELISA test and a conventional flow cytometer, using an eukaryotic malignant cell line model in physiological conditions (NS1 murine cells in phosphate buffer saline). We describe a proof of specificity of a GMR sensor detection of magnetically labeled cells. The limit of detection of the actual system was shown to be similar to the ELISA one and 10 times higher than the cytometer one.
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Affiliation(s)
- Manon Giraud
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay, CEDEX, 91191 Gif-sur-Yvette, France
- Service de Pharmacologie et Immunoanalyse (SPI), Laboratoire d'Etudes et de Recherches en Immunoanalyse, CEA, INRA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | | | - Anne Wijkhuisen
- Service de Pharmacologie et Immunoanalyse (SPI), Laboratoire d'Etudes et de Recherches en Immunoanalyse, CEA, INRA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - Pierre Bonville
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay, CEDEX, 91191 Gif-sur-Yvette, France
| | - Mathieu Thévenin
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay, CEDEX, 91191 Gif-sur-Yvette, France
| | - Gregory Cannies
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay, CEDEX, 91191 Gif-sur-Yvette, France
| | - Marc Plaisance
- Service de Pharmacologie et Immunoanalyse (SPI), Laboratoire d'Etudes et de Recherches en Immunoanalyse, CEA, INRA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - Elodie Paul
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay, CEDEX, 91191 Gif-sur-Yvette, France
| | - Eric Ezan
- Direction des Programmes et des Partenariats Publics, Département de la Recherche Fondamentale, CEA, 91191 Gif-sur-Yvette, France
| | - Stéphanie Simon
- Service de Pharmacologie et Immunoanalyse (SPI), Laboratoire d'Etudes et de Recherches en Immunoanalyse, CEA, INRA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - Claude Fermon
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay, CEDEX, 91191 Gif-sur-Yvette, France
| | - Cécile Féraudet-Tarisse
- Service de Pharmacologie et Immunoanalyse (SPI), Laboratoire d'Etudes et de Recherches en Immunoanalyse, CEA, INRA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
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Lui YS, Sow WT, Tan LP, Wu Y, Lai Y, Li H. 4D printing and stimuli-responsive materials in biomedical aspects. Acta Biomater 2019; 92:19-36. [PMID: 31071476 DOI: 10.1016/j.actbio.2019.05.005] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/02/2019] [Accepted: 05/03/2019] [Indexed: 12/16/2022]
Abstract
Three-dimensional (3D) printing has revolutionized the world manufacturing production. In biomedical applications, however, 3D printed constructs fell short of expectations mainly due to their inability to adequately mimic the dynamic human tissues. To date, most of the 3D printed biomedical structures are largely static and inanimate as they lack the time-dependant dimension. To adequately address the dynamic healing and regeneration process of human tissues, 4D printing emerges as an important development where "time" is incorporated into the conventional concept of 3D printing as the fourth dimension. As such, additive manufacturing (AM) evolves from 3D to 4D printing and in the process putting stimulus-responsive materials in the limelight. In this review, the state-of-the-art efforts in integrating the time-dependent behaviour of stimulus-responsive materials in 4D printing will be discussed. In addition, current literatures on the interactions between various types of stimuli (categorized under physical, chemical and biological signals) with the associated stimulus-responsive materials will be the major focus in this review. Lastly, potential usage of 4D printing in biomedical applications will also be discussed, followed by technical considerations as well as outlook for future discoveries. STATEMENT OF SIGNIFICANCE: In this Review, we have demonstrated the significance of 4D printing in biomedical applications, in which "time" has been incorporated into the conventional concept of 3D printing as the 4th dimension. As such, 4D printing differentiates and evolves from 3D printing using stimulus-responsive materials which can actively respond to external stimuli and more sophisticated "hardware"-printer which can achieve multi-printing via mathematical-predicted designs that are programmed to consider the transformation of 3D constructs over time. The emphasize will be on the interactions between various types of stimuli (categorized under physical, chemical and biological signals) with the associated stimulus-responsive materials, followed by technical considerations as well as outlook for future discoveries.
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Affiliation(s)
- Yuan Siang Lui
- School of Materials Science & Engineering, Nanyang Technological University, 639798, Singapore
| | - Wan Ting Sow
- School of Materials Science & Engineering, Nanyang Technological University, 639798, Singapore
| | - Lay Poh Tan
- School of Materials Science & Engineering, Nanyang Technological University, 639798, Singapore.
| | - Yunlong Wu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian Province 361002, PR China
| | - Yuekun Lai
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou, Zhejiang Province 325011, PR China; College of Chemical Engineering, Fuzhou University, Fuzhou 350116, PR China; National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, PR China
| | - Huaqiong Li
- School of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang Province 325035, PR China; Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou, Zhejiang Province 325011, PR China.
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Wang J, Karnaushenko D, Medina-Sánchez M, Yin Y, Ma L, Schmidt OG. Three-Dimensional Microtubular Devices for Lab-on-a-Chip Sensing Applications. ACS Sens 2019; 4:1476-1496. [PMID: 31132252 DOI: 10.1021/acssensors.9b00681] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The rapid advance of micro-/nanofabrication technologies opens up new opportunities for miniaturized sensing devices based on novel three-dimensional (3D) architectures. Notably, microtubular geometry exhibits natural advantages for sensing applications due to its unique properties including the hollow sensing channel, high surface-volume ratio, well-controlled shape parameters and compatibility to on-chip integration. Here the state-of-the-art sensing techniques based on microtubular devices are reviewed. The developed microtubular sensors cover microcapillaries, rolled-up nanomembranes, chemically synthesized tubular arrays, and photoresist-based tubular structures via 3D printing. Various types of microtubular sensors working in optical, electrical, and magnetic principles exhibit an extremely broad scope of sensing targets including liquids, biomolecules, micrometer-sized/nanosized objects, and gases. Moreover, they have also been applied for the detection of mechanical, acoustic, and magnetic fields as well as fluorescence signals in labeling-based analyses. At last, a comprehensive outlook of future research on microtubular sensors is discussed on pushing the detection limit, extending the functionality, and taking a step forward to a compact and integrable core module in a lab-on-a-chip analytical system for understanding fundamental biological events or performing accurate point-of-care diagnostics.
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Affiliation(s)
- Jiawei Wang
- Institute for Integrative Nanosciences, IFW Dresden, 01069 Dresden, Germany
- Material Systems for Nanoelectronics, Technische Universität Chemnitz, 09107 Chemnitz, Germany
- Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Technische Universität Chemnitz, Rosenbergstrasse 6, 09126 Chemnitz, Germany
| | | | | | - Yin Yin
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Libo Ma
- Institute for Integrative Nanosciences, IFW Dresden, 01069 Dresden, Germany
| | - Oliver G. Schmidt
- Institute for Integrative Nanosciences, IFW Dresden, 01069 Dresden, Germany
- Material Systems for Nanoelectronics, Technische Universität Chemnitz, 09107 Chemnitz, Germany
- Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Technische Universität Chemnitz, Rosenbergstrasse 6, 09126 Chemnitz, Germany
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