1
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Deng P, Lin X, Yu Z, Huang Y, Yuan S, Jiang X, Niu M, Peng WK. Machine learning-enabled high-throughput industry screening of edible oils. Food Chem 2024; 447:139017. [PMID: 38531304 DOI: 10.1016/j.foodchem.2024.139017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/27/2024] [Accepted: 03/10/2024] [Indexed: 03/28/2024]
Abstract
Long-term consumption of mixed fraudulent edible oils increases the risk of developing of chronic diseases which has been a threat to the public health globally. The complicated global supply-chain is making the industry malpractices had often gone undetected. In order to restore the confidence of consumers, traceability (and accountability) of every level in the supply chain is vital. In this work, we shown that machine learning (ML) assisted windowed spectroscopy (e.g., visible-band, infra-red band) produces high-throughput, non-destructive, and label-free authentication of edible oils (e.g., olive oils, sunflower oils), offers the feasibility for rapid analysis of large-scale industrial screening. We report achieving high-level of discriminant (AUC > 0.96) in the large-scale (n ≈ 11,500) of adulteration in olive oils. Notably, high clustering fidelity of 'spectral fingerprints' achieved created opportunity for (hypothesis-free) self-sustaining large database compilation which was never possible without machine learning. (137 words).
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Affiliation(s)
- Peishan Deng
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523801, PR China.
| | - Xiaomin Lin
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523801, PR China.
| | - Zifan Yu
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523801, PR China; Guangdong Medical University, 523-808, China
| | - Yuanding Huang
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523801, PR China.
| | - Shijin Yuan
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523801, PR China.
| | - Xin Jiang
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523801, PR China.
| | - Meng Niu
- China Medical University, China.
| | - Weng Kung Peng
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523801, PR China.
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2
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He F, Liu J, Huang Y, Chen L, Rizi EP, Zhang K, Ke L, Loh TP, Niu M, Peng WK. Nutritional load in post-prandial oxidative stress and the pathogeneses of diabetes mellitus. NPJ Sci Food 2024; 8:41. [PMID: 38937488 PMCID: PMC11211471 DOI: 10.1038/s41538-024-00282-x] [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: 07/08/2023] [Accepted: 06/14/2024] [Indexed: 06/29/2024] Open
Abstract
Diabetes mellitus affected more than 500 million of people globally, with an annual mortality of 1.5 million directly attributable to diabetic complications. Oxidative stress, in particularly in post-prandial state, plays a vital role in the pathogenesis of the diabetic complications. However, oxidative status marker is generally poorly characterized and their mechanisms of action are not well understood. In this work, we proposed a new framework for deep characterization of oxidative stress in erythrocytes (and in urine) using home-built micro-scale NMR system. The dynamic of post-prandial oxidative status (against a wide variety of nutritional load) in individual was assessed based on the proposed oxidative status of the red blood cells, with respect to the traditional risk-factors such as urinary isoprostane, reveals new insights into our understanding of diabetes. This new method can be potentially important in drafting guidelines for sub-stratification of diabetes mellitus for clinical care and management.
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Affiliation(s)
- Fangzhou He
- Songshan Lake Materials Laboratory, Dongguan, China
| | - Junshi Liu
- Dongguan Institute of Technology, Dongguan, China
| | | | - Lan Chen
- BioSyM, SMART Centre, Singapore, Singapore
| | | | - Ke Zhang
- Songshan Lake Materials Laboratory, Dongguan, China
| | - Lijing Ke
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Tze Ping Loh
- National University of Health System, Singapore, Singapore
| | - Meng Niu
- Department of Interventional Radiology, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Weng Kung Peng
- Songshan Lake Materials Laboratory, Dongguan, China.
- BioSyM, SMART Centre, Singapore, Singapore.
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3
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Srivastava S, He F, Huang Y, Niu M, Adholeya A, Peng WK. A Brief Review on Medicinal Plants-At-Arms against COVID-19. Interdiscip Perspect Infect Dis 2023; 2023:7598307. [PMID: 37139479 PMCID: PMC10151152 DOI: 10.1155/2023/7598307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 03/09/2023] [Accepted: 03/22/2023] [Indexed: 05/05/2023] Open
Abstract
COVID-19 pandemic caused by the novel SARS-CoV-2 has impacted human livelihood globally. Strenuous efforts have been employed for its control and prevention; however, with recent reports on mutated strains with much higher infectivity, transmissibility, and ability to evade immunity developed from previous SARS-CoV-2 infections, prevention alternatives must be prepared beforehand in case. We have perused over 128 recent works (found on Google Scholar, PubMed, and ScienceDirect as of February 2023) on medicinal plants and their compounds for anti-SARS-CoV-2 activity and eventually reviewed 102 of them. The clinical application and the curative effect were reported high in China and in India. Accordingly, this review highlights the unprecedented opportunities offered by medicinal plants and their compounds, candidates as the therapeutic agent, against COVID-19 by acting as viral protein inhibitors and immunomodulator in (32 clinical trials and hundreds of in silico experiments) conjecture with modern science. Moreover, the associated foreseeable challenges for their viral outbreak management were discussed in comparison to synthetic drugs.
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Affiliation(s)
- Shivani Srivastava
- Centre for Mycorrhizal Research, Sustainable Agriculture Division, The Energy and Resources Institute (TERI), TERI Gram, Gwal Pahari, Gurugram 122001, India
| | - Fangzhou He
- Songshan Lake Materials Laboratory, University Innovation Park, Dongguan 523-808, China
| | - Yuanding Huang
- Songshan Lake Materials Laboratory, University Innovation Park, Dongguan 523-808, China
| | - Meng Niu
- China Medical University, Shenyang, China
| | - Alok Adholeya
- Centre for Mycorrhizal Research, Sustainable Agriculture Division, The Energy and Resources Institute (TERI), TERI Gram, Gwal Pahari, Gurugram 122001, India
| | - Weng Kung Peng
- Songshan Lake Materials Laboratory, University Innovation Park, Dongguan 523-808, China
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4
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Novel time-domain NMR-based traits for rapid, label-free Olive oils profiling. NPJ Sci Food 2022; 6:59. [PMID: 36513670 PMCID: PMC9746572 DOI: 10.1038/s41538-022-00173-z] [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: 01/27/2022] [Accepted: 11/30/2022] [Indexed: 12/15/2022] Open
Abstract
Olive oil is one of the oldest and essential edible oils in the market. The classification of olive oils (e.g. extra virgin, virgin, refined) is often influenced by factors ranging from its complex inherent physiochemical properties (e.g. fatty acid profiles) to the undisclosed manufacturing processes. Therefore, olive oils have been the target of adulteration due to its profitable margin. In this work, we demonstrate that multi-parametric time-domain NMR relaxometry can be used to rapidly (in minutes) identify and classify olive oils in label-free and non-destructive manner. The subtle differences in molecular microenvironment of the olive oils induce substantial changes in the relaxation mechanism in the time-domain NMR regime. We demonstrated that the proposed NMR-relaxation based detection (AUC = 0.95) is far more sensitive and specific than the current gold-standards in the field i.e. near-infrared spectroscopy (AUC = 0.84) and Ultraviolet-visible spectroscopy (AUC = 0.73), respectively. We further show that, albeit the inherent complexity of olive plant natural phenotypic variations, the proposed NMR-relaxation based traits may be a viable mean (AUC = 0.71) in tracing the regions of origin for olive trees, in agreement with their geographical orientation.
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5
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Baptista V, Peng WK, Minas G, Veiga MI, Catarino SO. Review of Microdevices for Hemozoin-Based Malaria Detection. BIOSENSORS 2022; 12:bios12020110. [PMID: 35200370 PMCID: PMC8870200 DOI: 10.3390/bios12020110] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/04/2022] [Accepted: 02/06/2022] [Indexed: 05/21/2023]
Abstract
Despite being preventable and treatable, malaria still puts almost half of the world's population at risk. Thus, prompt, accurate and sensitive malaria diagnosis is crucial for disease control and elimination. Optical microscopy and immuno-rapid tests are the standard malaria diagnostic methods in the field. However, these are time-consuming and fail to detect low-level parasitemia. Biosensors and lab-on-a-chip devices, as reported to different applications, usually offer high sensitivity, specificity, and ease of use at the point of care. Thus, these can be explored as an alternative for malaria diagnosis. Alongside malaria infection inside the human red blood cells, parasites consume host hemoglobin generating the hemozoin crystal as a by-product. Hemozoin is produced in all parasite species either in symptomatic and asymptomatic individuals. Furthermore, hemozoin crystals are produced as the parasites invade the red blood cells and their content relates to disease progression. Hemozoin is, therefore, a unique indicator of infection, being used as a malaria biomarker. Herein, the so-far developed biosensors and lab-on-a-chip devices aiming for malaria detection by targeting hemozoin as a biomarker are reviewed and discussed to fulfil all the medical demands for malaria management towards elimination.
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Affiliation(s)
- Vitória Baptista
- Microelectromechanical Systems Research Unit (CMEMS-UMinho), School of Engineering, Campus de Azurém, University of Minho, 4800-058 Guimarães, Portugal; (G.M.); (S.O.C.)
- LABBELS-Associate Laboratory, Braga/Guimarães, 4806-909 Guimarães, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal;
- ICVS/3B’s-PT Government Associate Laboratory, Braga/Guimarães, 4806-909 Guimarães, Portugal
- Correspondence:
| | - Weng Kung Peng
- Songshan Lake Materials Laboratory, Building A1, University Innovation Park, Dongguan 523808, China;
| | - Graça Minas
- Microelectromechanical Systems Research Unit (CMEMS-UMinho), School of Engineering, Campus de Azurém, University of Minho, 4800-058 Guimarães, Portugal; (G.M.); (S.O.C.)
- LABBELS-Associate Laboratory, Braga/Guimarães, 4806-909 Guimarães, Portugal
| | - Maria Isabel Veiga
- Life and Health Sciences Research Institute (ICVS), School of Medicine, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal;
- ICVS/3B’s-PT Government Associate Laboratory, Braga/Guimarães, 4806-909 Guimarães, Portugal
| | - Susana O. Catarino
- Microelectromechanical Systems Research Unit (CMEMS-UMinho), School of Engineering, Campus de Azurém, University of Minho, 4800-058 Guimarães, Portugal; (G.M.); (S.O.C.)
- LABBELS-Associate Laboratory, Braga/Guimarães, 4806-909 Guimarães, Portugal
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6
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Aggarwal S, Peng WK, Srivastava S. Multi-Omics Advancements towards Plasmodium vivax Malaria Diagnosis. Diagnostics (Basel) 2021; 11:2222. [PMID: 34943459 PMCID: PMC8700291 DOI: 10.3390/diagnostics11122222] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 11/16/2022] Open
Abstract
Plasmodium vivax malaria is one of the most lethal infectious diseases, with 7 million infections annually. One of the roadblocks to global malaria elimination is the lack of highly sensitive, specific, and accurate diagnostic tools. The absence of diagnostic tools in particular has led to poor differentiation among parasite species, poor prognosis, and delayed treatment. The improvement necessary in diagnostic tools can be broadly grouped into two categories: technologies-driven and omics-driven progress over time. This article discusses the recent advancement in omics-based malaria for identifying the next generation biomarkers for a highly sensitive and specific assay with a rapid and antecedent prognosis of the disease. We summarize the state-of-the-art diagnostic technologies, the key challenges, opportunities, and emerging prospects of multi-omics-based sensors.
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Affiliation(s)
- Shalini Aggarwal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India;
| | - Weng Kung Peng
- Songshan Lake Materials Laboratory, Building A1, University Innovation Park, Dongguan 523808, China
- Precision Medicine-Engineering Group, International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
| | - Sanjeeva Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India;
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7
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Baptista V, Costa MS, Calçada C, Silva M, Gil JP, Veiga MI, Catarino SO. The Future in Sensing Technologies for Malaria Surveillance: A Review of Hemozoin-Based Diagnosis. ACS Sens 2021; 6:3898-3911. [PMID: 34735120 DOI: 10.1021/acssensors.1c01750] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Early and effective malaria diagnosis is vital to control the disease spread and to prevent the emergence of severe cases and death. Currently, malaria diagnosis relies on optical microscopy and immuno-rapid tests; however, these require a drop of blood, are time-consuming, or are not specific and sensitive enough for reliable detection of low-level parasitaemia. Thus, there is an urge for simpler, prompt, and accurate alternative diagnostic methods. Particularly, hemozoin has been increasingly recognized as an attractive biomarker for malaria detection. As the disease proliferates, parasites digest host hemoglobin, in the process releasing toxic haem that is detoxified into an insoluble crystal, the hemozoin, which accumulates along with infection progression. Given its magnetic, optical, and acoustic unique features, hemozoin has been explored for new label-free diagnostic methods. Thereby, herein, we review the hemozoin-based malaria detection methods and critically discuss their challenges and potential for the development of an ideal diagnostic device.
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Affiliation(s)
- Vitória Baptista
- Microelectromechanical Systems Research Unit (CMEMS-UMinho), School of Engineering, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s − PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Mariana S. Costa
- Microelectromechanical Systems Research Unit (CMEMS-UMinho), School of Engineering, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Carla Calçada
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s − PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
| | - Miguel Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s − PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - José Pedro Gil
- Stockholm Malaria Center, Department of Microbiology and Tumour Cell Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Maria Isabel Veiga
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s − PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Susana O. Catarino
- Microelectromechanical Systems Research Unit (CMEMS-UMinho), School of Engineering, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
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8
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Sundaram A, Francis BM, Dhanabalan SC, Ponraj JS. Transition metal carbide—MXene. HANDBOOK OF CARBON-BASED NANOMATERIALS 2021:671-709. [DOI: 10.1016/b978-0-12-821996-6.00017-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
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9
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Visualization and Measurements of Blood Cells Flowing in Microfluidic Systems and Blood Rheology: A Personalized Medicine Perspective. J Pers Med 2020; 10:jpm10040249. [PMID: 33256123 PMCID: PMC7712771 DOI: 10.3390/jpm10040249] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 02/08/2023] Open
Abstract
Hemorheological alterations in the majority of metabolic diseases are always connected with blood rheology disturbances, such as the increase of blood and plasma viscosity, cell aggregation enhancement, and reduction of the red blood cells (RBCs) deformability. Thus, the visualizations and measurements of blood cells deformability flowing in microfluidic devices (point-of-care devices) can provide vital information to diagnose early symptoms of blood diseases and consequently to be used as a fast clinical tool for early detection of biomarkers. For instance, RBCs rigidity has been correlated with myocardial infarction, diabetes mellitus, hypertension, among other blood diseases. In order to better understand the blood cells behavior in microfluidic devices, rheological properties analysis is gaining interest by the biomedical committee, since it is strongly dependent on the interactions and mechanical cells proprieties. In addition, the development of blood analogue fluids capable of reproducing the rheological properties of blood and mimic the RBCs behavior at in vitro conditions is crucial for the design, performance and optimization of the microfluidic devices frequently used for personalized medicine. By combining the unique features of the hemorheology and microfluidic technology for single-cell analysis, valuable advances in personalized medicine for new treatments and diagnosis approach can be achieved.
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10
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Peng WK, Chen L, Boehm BO, Han J, Loh TP. Molecular phenotyping of oxidative stress in diabetes mellitus with point-of-care NMR system. NPJ Aging Mech Dis 2020; 6:11. [PMID: 33083002 PMCID: PMC7536436 DOI: 10.1038/s41514-020-00049-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 09/09/2020] [Indexed: 12/18/2022] Open
Abstract
Diabetes mellitus is one of the fastest-growing health burdens globally. Oxidative stress, which has been implicated in the pathogenesis of diabetes complication (e.g., cardiovascular event), remains poorly understood. We report a new approach to rapidly manipulate and evaluate the redox states of blood using a point-of-care NMR system. Various redox states of the hemoglobin were mapped out using the newly proposed (pseudo) two-dimensional map known as T1-T2 magnetic state diagram. We exploit the fact that oxidative stress changes the subtle molecular motion of water proton in the blood, and thus inducing a measurable shift in magnetic resonance relaxation properties. We demonstrated the clinical utilities of this technique to rapidly stratify diabetes subjects based on their oxidative status in conjunction to the traditional glycemic level to improve the patient stratification and thus the overall outcome of clinical diabetes care and management.
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Affiliation(s)
- Weng Kung Peng
- Precision Medicine–Engineering Group, International Iberian Nanotechnology Laboratory, Braga, Portugal
- BioSystems & Micromechanics IRG (BioSyM), Singapore-MIT Alliance for Research and Technology (SMART) Centre, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Lan Chen
- BioSystems & Micromechanics IRG (BioSyM), Singapore-MIT Alliance for Research and Technology (SMART) Centre, Singapore, Singapore
| | - Bernhard O. Boehm
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
- Ulm University Medical Centre, Department of Internal Medicine 1, Ulm University, Ulm, Germany
- Imperial College London, London, UK
| | - Jongyoon Han
- BioSystems & Micromechanics IRG (BioSyM), Singapore-MIT Alliance for Research and Technology (SMART) Centre, Singapore, Singapore
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 36-841, 77 Massachusetts Avenue, Cambridge, MA 02139 USA
- Department of Biological Engineering, Massachusetts Institute of Technology, 36-841, 77 Massachusetts Avenue, Cambridge, MA 02139 USA
| | - Tze Ping Loh
- Department of Laboratory Medicine, National University Hospital, 5 Lower Kent Ridge Road, Singapore, 119074 Singapore
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11
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Peng WK, Ng TT, Loh TP. Machine learning assistive rapid, label-free molecular phenotyping of blood with two-dimensional NMR correlational spectroscopy. Commun Biol 2020; 3:535. [PMID: 32985608 PMCID: PMC7522972 DOI: 10.1038/s42003-020-01262-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 08/28/2020] [Indexed: 01/02/2023] Open
Abstract
Translation of the findings in basic science and clinical research into routine practice is hampered by large variations in human phenotype. Developments in genotyping and phenotyping, such as proteomics and lipidomics, are beginning to address these limitations. In this work, we developed a new methodology for rapid, label-free molecular phenotyping of biological fluids (e.g., blood) by exploiting the recent advances in fast and highly efficient multidimensional inverse Laplace decomposition technique. We demonstrated that using two-dimensional T1-T2 correlational spectroscopy on a single drop of blood (<5 μL), a highly time- and patient-specific 'molecular fingerprint' can be obtained in minutes. Machine learning techniques were introduced to transform the NMR correlational map into user-friendly information for point-of-care disease diagnostic and monitoring. The clinical utilities of this technique were demonstrated through the direct analysis of human whole blood in various physiological (e.g., oxygenated/deoxygenated states) and pathological (e.g., blood oxidation, hemoglobinopathies) conditions.
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Affiliation(s)
- Weng Kung Peng
- Precision Medicine - Engineering Group, International Iberian Nanotechnology Laboratory, 4715 330, Braga, Portugal.
| | - Tian-Tsong Ng
- Institute for Infocomm Research, Fusionopolis Way, Singapore, Singapore
| | - Tze Ping Loh
- Department of Laboratory Medicine, National University Hospital, Singapore, Singapore.
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12
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Zhao Y, Bu S, Wang C, Ma C, Li Z, Zhang W, Wan J. Dual Aptamer-Copper (II) Phosphate Nanocomposite-Based Point-of-Care Biosensor for the Determination of Escherichia coli O157:H7 through Pressure Monitoring with a Hand-Held Barometer. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1817059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yinghao Zhao
- Laboratory of Pathogenic Microbiology and Immunology, College of Life Science, Jilin Agricultural University, Changchun, China
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Shengjun Bu
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Chengyu Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Chengyou Ma
- College of Geo-Exploration Science and Technology, Jilin University, Changchun, China
| | - Zhongyi Li
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
| | - Wenhui Zhang
- Laboratory of Pathogenic Microbiology and Immunology, College of Life Science, Jilin Agricultural University, Changchun, China
| | - Jiayu Wan
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, China
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13
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Abstract
Malaria is major public health concerns which continues to claim the lives of more than 435,000 people each year. The challenges with anti-malarial drug resistance and detection of low parasitaemia forms an immediate barrier to achieve the fast-approaching United Nations Sustainable Development Goals of ending malaria epidemics by 2030. In this Opinion article, focusing on the recent published technologies, in particularly the nuclear magnetic resonance (NMR)-based diagnostic technologies, the authors offer their perspectives and highlight ways to bring these point-of-care technologies towards personalized medicine. To this end, they advocate an open sourcing initiative to rapidly close the gap between technological innovations and field implementation.
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Affiliation(s)
- Maria Isabel Veiga
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Weng Kung Peng
- Precision Medicine-Engineering Group, International Iberian Nanotechnology Laboratory, Braga, Portugal.
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14
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Cooley CZ, Stockmann JP, Witzel T, LaPierre C, Mareyam A, Jia F, Zaitsev M, Wenhui Y, Zheng W, Stang P, Scott G, Adalsteinsson E, White JK, Wald LL. Design and implementation of a low-cost, tabletop MRI scanner for education and research prototyping. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2020; 310:106625. [PMID: 31765969 DOI: 10.1016/j.jmr.2019.106625] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 10/19/2019] [Accepted: 10/20/2019] [Indexed: 06/10/2023]
Abstract
While access to a laboratory MRI system is ideal for teaching MR physics as well as many aspects of signal processing, providing multiple MRI scanners can be prohibitively expensive for educational settings. To address this need, we developed a small, low-cost, open-interface tabletop MRI scanner for academic use. We constructed and tested 20 of these scanners for parallel use by teams of 2-3 students in a teaching laboratory. With simplification and down-scaling to a 1 cm FOV, fully-functional scanners were achieved within a budget of $10,000 USD each. The design was successful for teaching MR principles and basic signal processing skills and serves as an accessible testbed for more advanced MR research projects. Customizable GUIs, pulse sequences, and reconstruction code accessible to the students facilitated tailoring the scanner to the needs of laboratory exercise. The scanners have been used by >800 students in 6 different courses and all designs, schematics, sequences, GUIs, and reconstruction code is open-source.
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Affiliation(s)
- Clarissa Zimmerman Cooley
- A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA; Harvard Medical School, Boston, MA, USA.
| | - Jason P Stockmann
- A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Thomas Witzel
- A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Cris LaPierre
- A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA
| | - Azma Mareyam
- A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA
| | - Feng Jia
- Dept. of Radiology, Medical Physics, Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Maxim Zaitsev
- Dept. of Radiology, Medical Physics, Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Yang Wenhui
- Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China
| | - Wang Zheng
- Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China
| | - Pascal Stang
- Procyon Engineering, San Jose, CA, USA; Department of Electrical Engineering, Stanford University, Stanford, CA, USA
| | - Greig Scott
- Department of Electrical Engineering, Stanford University, Stanford, CA, USA
| | - Elfar Adalsteinsson
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA; Harvard-MIT Division of Health Sciences Technology, Cambridge, MA, USA
| | - Jacob K White
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Lawrence L Wald
- A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA; Harvard Medical School, Boston, MA, USA; Harvard-MIT Division of Health Sciences Technology, Cambridge, MA, USA
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15
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Cruz A, Peng WK. Perspective: Cellular and Molecular Profiling Technologies in Personalized Oncology. J Pers Med 2019; 9:E44. [PMID: 31547284 PMCID: PMC6789676 DOI: 10.3390/jpm9030044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/28/2019] [Accepted: 09/04/2019] [Indexed: 02/08/2023] Open
Abstract
Cancer is a leading cause of death worldwide and therefore one of the most important public health concerns. In this contribution, we discuss recent key enabling technological innovations (and their challenges), including biomarker-based technologies, that potentially allow for decentralization (e.g., self-monitoring) with the increasing availability of point-of-care technologies in the near future. These technological innovations are moving the field one step closer toward personalized oncology.
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Affiliation(s)
- Andrea Cruz
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal.
| | - Weng Kung Peng
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal.
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16
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Peng WK, Paesani D. Omics Meeting Onics: Towards the Next Generation of Spectroscopic-Based Technologies in Personalized Medicine. J Pers Med 2019; 9:E39. [PMID: 31374867 PMCID: PMC6789736 DOI: 10.3390/jpm9030039] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 07/16/2019] [Indexed: 12/14/2022] Open
Abstract
This article aims to discuss the recent development of integrated point-of-care spectroscopic-based technologies that are paving the way for the next generation of diagnostic monitoring technologies in personalized medicine. Focusing on the nuclear magnetic resonance (NMR) technologies as the leading example, we discuss the emergence of -onics technologies (e.g., photonics and electronics) and how their coexistence with -omics technologies (e.g., genomics, proteomics, and metabolomics) can potentially change the future technological landscape of personalized medicine. The idea of an open-source (e.g., hardware and software) movement is discussed, and we argue that technology democratization will not only promote the dissemination of knowledge and inspire new applications, but it will also increase the speed of field implementation.
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Affiliation(s)
- Weng Kung Peng
- Precision Medicine-Engineering Group, Department of Nanoelectronics Engineering, International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal.
| | - Daniele Paesani
- Precision Medicine-Engineering Group, Department of Nanoelectronics Engineering, International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
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17
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Ariando D, Chen C, Greer M, Mandal S. An autonomous, highly portable NMR spectrometer based on a low-cost System-on-Chip (SoC). JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2019; 299:74-92. [PMID: 30590351 DOI: 10.1016/j.jmr.2018.12.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/05/2018] [Accepted: 12/07/2018] [Indexed: 05/13/2023]
Abstract
This paper describes the development of a portable and self-optimizing NMR spectrometer based on a miniaturized custom analog front-end and a System-on-Chip (SoC)-based digital back-end. The SoC integrates a field-programmable gate array (FPGA) fabric with a hard processor running a Linux operating system, thus enabling fully-autonomous operation without the need for an external computer. In the proposed approach, data captured by the FPGA fabric during regular operation is transported to the hard processor using an integrated on-chip bus for further processing. The processed results are then used to automatically estimate parameter values that optimize a suitable cost function, such as signal-to-noise ratio (SNR) per unit time. Finally, the optimized values of both electrical and NMR-related tuning parameters (e.g., preamplifier gain and frequency response, pulse length and amplitude, operating frequency, etc.) are programmed back into the front-end and back-end hardware. Experimental NMR results from various samples in a ∼0.1 T permanent magnet are presented to verify the operation of the proposed spectrometer. These demonstrate on-board Laplace inversion and automated frequency tuning to compensate for temperature changes. Preliminary 14N NQR results are also presented.
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Affiliation(s)
- David Ariando
- Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
| | - Cheng Chen
- Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
| | - Mason Greer
- Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
| | - Soumyajit Mandal
- Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
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18
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Li J, Jiang H, Rao X, Liu Z, Zhu H, Xu Y. Point-of-Care Testing of Pathogenic Bacteria at the Single-Colony Level via Gas Pressure Readout Using Aptamer-Coated Magnetic CuFe 2O 4 and Vancomycin-Capped Platinum Nanoparticles. Anal Chem 2019; 91:1494-1500. [PMID: 30586297 DOI: 10.1021/acs.analchem.8b04584] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pressure measurements are performed everyday with simple devices, and in the field of analytical chemistry the pressure-based signaling strategy offers two important advantages, signal amplification and particular applicability in point-of-care settings. Herein, by using vancomycin (Van)-functionalized platinum nanoparticles (PtNPs@Van) and aptamer-coated magnetic CuFe2O4 nanoprobes dual-recognition units integrated with a catalyzed breakdown of H2O2 for O2 generation, we demonstrated that gas pressure can be used as a readout means for highly sensitive pathogenic bacteria identification and quantification. Using Staphylococcus aureus ( S. aureus) as a test case, integration of the molecular dual-recognition component with the catalyzed gas-generation reaction leads to a significant pressure change (Δ P), and the correlation between the concentration of S. aureus and the Δ P signal was found to be linear from 5.0 to 1.0 × 104 cfu/mL with a detection limit of 1.0 cfu/mL. Other nontarget bacteria show negative results, verifying the high specificity of the present strategy. When employed to assay S. aureus in saliva and milk samples, the approach shows recoveries from 93.3% to 107.1% with relative standard derivation (RSD) less than 8.8%. By the integration of catalyzed gas-generation reaction with the designed molecular recognition event, obviously the pressure-based signaling strategy could facilitate pathogenic bacteria identification and quantification not only in the laboratory but also in point-of-care settings, which could have great potential in the application of food safety and infectious disease diagnosis.
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19
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Primiceri E, Chiriacò MS, Notarangelo FM, Crocamo A, Ardissino D, Cereda M, Bramanti AP, Bianchessi MA, Giannelli G, Maruccio G. Key Enabling Technologies for Point-of-Care Diagnostics. SENSORS (BASEL, SWITZERLAND) 2018; 18:E3607. [PMID: 30355989 PMCID: PMC6263899 DOI: 10.3390/s18113607] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/01/2018] [Accepted: 10/16/2018] [Indexed: 12/13/2022]
Abstract
A major trend in biomedical engineering is the development of reliable, self-contained point-of-care (POC) devices for diagnostics and in-field assays. The new generation of such platforms increasingly addresses the clinical and environmental needs. Moreover, they are becoming more and more integrated with everyday objects, such as smartphones, and their spread among unskilled common people, has the power to improve the quality of life, both in the developed world and in low-resource settings. The future success of these tools will depend on the integration of the relevant key enabling technologies on an industrial scale (microfluidics with microelectronics, highly sensitive detection methods and low-cost materials for easy-to-use tools). Here, recent advances and perspectives will be reviewed across the large spectrum of their applications.
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Affiliation(s)
| | | | | | - Antonio Crocamo
- Azienda Ospedaliero-Universitaria di Parma, via Gramsci 14, 43126 Parma, Italy.
| | - Diego Ardissino
- Azienda Ospedaliero-Universitaria di Parma, via Gramsci 14, 43126 Parma, Italy.
| | - Marco Cereda
- STMicroelectronics S.r.l., via Olivetti 2, 20864 Agrate Brianza, Italy.
| | | | | | - Gianluigi Giannelli
- National Institute of Gastroenterology, "S. De Bellis" Research Hospital, via Turi 27, 70013 Castellana Grotte, Italy.
| | - Giuseppe Maruccio
- Department of Mathematics and Physics, University of Salento, via Monteroni, 73100 Lecce, Italy.
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20
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Hasselwander CJ, Cao Z, Grissom WA. gr-MRI: A software package for magnetic resonance imaging using software defined radios. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2016; 270:47-55. [PMID: 27394165 PMCID: PMC4996692 DOI: 10.1016/j.jmr.2016.06.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 06/03/2016] [Accepted: 06/30/2016] [Indexed: 05/25/2023]
Abstract
The goal of this work is to develop software that enables the rapid implementation of custom MRI spectrometers using commercially-available software defined radios (SDRs). The developed gr-MRI software package comprises a set of Python scripts, flowgraphs, and signal generation and recording blocks for GNU Radio, an open-source SDR software package that is widely used in communications research. gr-MRI implements basic event sequencing functionality, and tools for system calibrations, multi-radio synchronization, and MR signal processing and image reconstruction. It includes four pulse sequences: a single-pulse sequence to record free induction signals, a gradient-recalled echo imaging sequence, a spin echo imaging sequence, and an inversion recovery spin echo imaging sequence. The sequences were used to perform phantom imaging scans with a 0.5Tesla tabletop MRI scanner and two commercially-available SDRs. One SDR was used for RF excitation and reception, and the other for gradient pulse generation. The total SDR hardware cost was approximately $2000. The frequency of radio desynchronization events and the frequency with which the software recovered from those events was also measured, and the SDR's ability to generate frequency-swept RF waveforms was validated and compared to the scanner's commercial spectrometer. The spin echo images geometrically matched those acquired using the commercial spectrometer, with no unexpected distortions. Desynchronization events were more likely to occur at the very beginning of an imaging scan, but were nearly eliminated if the user invoked the sequence for a short period before beginning data recording. The SDR produced a 500kHz bandwidth frequency-swept pulse with high fidelity, while the commercial spectrometer produced a waveform with large frequency spike errors. In conclusion, the developed gr-MRI software can be used to develop high-fidelity, low-cost custom MRI spectrometers using commercially-available SDRs.
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Affiliation(s)
- Christopher J Hasselwander
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA; Vanderbilt University Institute of Imaging Science, Nashville, TN, USA.
| | - Zhipeng Cao
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA; Vanderbilt University Institute of Imaging Science, Nashville, TN, USA.
| | - William A Grissom
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, USA; Vanderbilt University Institute of Imaging Science, Nashville, TN, USA.
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21
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Zhu Z, Guan Z, Liu D, Jia S, Li J, Lei Z, Lin S, Ji T, Tian Z, Yang CJ. Translating Molecular Recognition into a Pressure Signal to enable Rapid, Sensitive, and Portable Biomedical Analysis. Angew Chem Int Ed Engl 2015; 54:10448-53. [PMID: 26180027 DOI: 10.1002/anie.201503963] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Indexed: 11/07/2022]
Abstract
Herein, we demonstrate that a very familiar, yet underutilized, physical parameter—gas pressure—can serve as signal readout for highly sensitive bioanalysis. Integration of a catalyzed gas-generation reaction with a molecular recognition component leads to significant pressure changes, which can be measured with high sensitivity using a low-cost and portable pressure meter. This new signaling strategy opens up a new way for simple, portable, yet highly sensitive biomedical analysis in a variety of settings.
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Affiliation(s)
- Zhi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
| | - Zhichao Guan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
| | - Dan Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
| | - Shasha Jia
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
| | - Jiuxing Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
| | - Zhichao Lei
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
| | - Shuichao Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
| | - Tianhai Ji
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
| | - Zhongqun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
| | - Chaoyong James Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China).
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22
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Zhu Z, Guan Z, Liu D, Jia S, Li J, Lei Z, Lin S, Ji T, Tian Z, Yang CJ. Translating Molecular Recognition into a Pressure Signal to enable Rapid, Sensitive, and Portable Biomedical Analysis. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503963] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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23
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Fook Kong T, Ye W, Peng WK, Wei Hou H, Marcos M, Preiser PR, Nguyen NT, Han J. Enhancing malaria diagnosis through microfluidic cell enrichment and magnetic resonance relaxometry detection. Sci Rep 2015; 5:11425. [PMID: 26081638 PMCID: PMC4469967 DOI: 10.1038/srep11425] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 05/20/2015] [Indexed: 02/07/2023] Open
Abstract
Despite significant advancements over the years, there remains an urgent need for low cost diagnostic approaches that allow for rapid, reliable and sensitive detection of malaria parasites in clinical samples. Our previous work has shown that magnetic resonance relaxometry (MRR) is a potentially highly sensitive tool for malaria diagnosis. A key challenge for making MRR based malaria diagnostics suitable for clinical testing is the fact that MRR baseline fluctuation exists between individuals, making it difficult to detect low level parasitemia. To overcome this problem, it is important to establish the MRR baseline of each individual while having the ability to reliably determine any changes that are caused by the infection of malaria parasite. Here we show that an approach that combines the use of microfluidic cell enrichment with a saponin lysis before MRR detection can overcome these challenges and provide the basis for a highly sensitive and reliable diagnostic approach of malaria parasites. Importantly, as little as 0.0005% of ring stage parasites can be detected reliably, making this ideally suited for the detection of malaria parasites in peripheral blood obtained from patients. The approaches used here are envisaged to provide a new malaria diagnosis solution in the near future.
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Affiliation(s)
- Tian Fook Kong
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore
- BioSystems and Micromechanics (BioSyM) IRG, Singapore-MIT Alliance for Research and Technology (SMART) Centre, 1 Create Way, #03 Enterprise Wing, Singapore
| | - Weijian Ye
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore
- Infectious Diseases IRG (ID), Singapore-MIT Alliance for Research and Technology (SMART) Centre, 1 Create Way, #03 Enterprise Wing, Singapore
| | - Weng Kung Peng
- BioSystems and Micromechanics (BioSyM) IRG, Singapore-MIT Alliance for Research and Technology (SMART) Centre, 1 Create Way, #03 Enterprise Wing, Singapore
| | - Han Wei Hou
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, Singapore
| | - M Marcos
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore
| | - Peter Rainer Preiser
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore
- Infectious Diseases IRG (ID), Singapore-MIT Alliance for Research and Technology (SMART) Centre, 1 Create Way, #03 Enterprise Wing, Singapore
| | - Nam-Trung Nguyen
- Queensland Micro- and Nanotechnology Centre, Griffith University, 170 Kessels Road, QLD 4111, Australia
| | - Jongyoon Han
- BioSystems and Micromechanics (BioSyM) IRG, Singapore-MIT Alliance for Research and Technology (SMART) Centre, 1 Create Way, #03 Enterprise Wing, Singapore
- Department of Electrical Engineering & Computer Science, Massachusetts Institute of Technology, Room 36-841, 77 Massachusetts Avenue, Cambridge, MA, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
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24
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Chen HY, Kim Y, Nath P, Hilty C. An ultra-low cost NMR device with arbitrary pulse programming. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2015; 255:100-5. [PMID: 25918864 DOI: 10.1016/j.jmr.2015.02.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 02/14/2015] [Accepted: 02/16/2015] [Indexed: 05/13/2023]
Abstract
Ultra-low cost, general purpose electronics boards featuring microprocessors or field programmable gate arrays (FPGA) are reaching capabilities sufficient for direct implementation of NMR spectrometers. We demonstrate a spectrometer based on such a board, implemented with a minimal need for the addition of custom electronics and external components. This feature allows such a spectrometer to be readily implemented using typical knowledge present in an NMR laboratory. With FPGA technology, digital tasks are performed with precise timing, without the limitation of predetermined hardware function. In this case, the FPGA is used for programming of arbitrarily timed pulse sequence events, and to digitally generate required frequencies. Data acquired from a 0.53T permanent magnet serves as a demonstration of the flexibility of pulse programming for diverse experiments. Pulse sequences applied include a spin-lattice relaxation measurement using a pulse train with small-flip angle pulses, and a Carr-Purcell-Meiboom-Gill experiment with phase cycle. Mixing of NMR signals with a digitally generated, 4-step phase-cycled reference frequency is further implemented to achieve sequential quadrature detection. The flexibility in hardware implementation permits tailoring this type of spectrometer for applications such as relaxometry, polarimetry, diffusometry or NMR based magnetometry.
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Affiliation(s)
- Hsueh-Ying Chen
- Chemistry Department, Texas A&M University, College Station, TX 77845-3255, USA
| | - Yaewon Kim
- Chemistry Department, Texas A&M University, College Station, TX 77845-3255, USA
| | - Pulak Nath
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Christian Hilty
- Chemistry Department, Texas A&M University, College Station, TX 77845-3255, USA.
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25
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Micromagnetic resonance relaxometry for rapid label-free malaria diagnosis. Nat Med 2014; 20:1069-73. [PMID: 25173428 DOI: 10.1038/nm.3622] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Accepted: 04/08/2014] [Indexed: 11/09/2022]
Abstract
We report a new technique for sensitive, quantitative and rapid detection of Plasmodium spp.-infected red blood cells (RBCs) by means of magnetic resonance relaxometry (MRR). During the intraerythrocytic cycle, malaria parasites metabolize large amounts of cellular hemoglobin and convert it into hemozoin crystallites. We exploit the relatively large paramagnetic susceptibility of these hemozoin particles, which induce substantial changes in the transverse relaxation rate of proton nuclear magnetic resonance of RBCs, to infer the 'parasite load' in blood. Using an inexpensive benchtop 0.5-Tesla MRR system, we show that with minimal sample preparatory steps and without any chemical or immunolabeling, a parasitemia level of fewer than ten parasites per microliter in a volume below 10 μl of whole blood is detected in a few minutes. We demonstrate this method both for cultured Plasmodium falciparum parasites and in vivo with Plasmodium berghei-infected mice.
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26
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Lei KM, Mak PI, Law MK, Martins RP. NMR–DMF: a modular nuclear magnetic resonance–digital microfluidics system for biological assays. Analyst 2014; 139:6204-13. [DOI: 10.1039/c4an01285b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a modular nuclear magnetic resonance–digital microfluidics (NMR–DMF) system as a portable diagnostic platform for miniaturized biological assays.
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Affiliation(s)
- Ka-Meng Lei
- State-Key Laboratory of Analog and Mixed-Signal VLSI and FST-ECE
- University of Macau
- China
| | - Pui-In Mak
- State-Key Laboratory of Analog and Mixed-Signal VLSI and FST-ECE
- University of Macau
- China
| | - Man-Kay Law
- State-Key Laboratory of Analog and Mixed-Signal VLSI and FST-ECE
- University of Macau
- China
| | - Rui P. Martins
- State-Key Laboratory of Analog and Mixed-Signal VLSI and FST-ECE
- University of Macau
- China
- Instituto Superior Técnico
- University of Lisbon
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27
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Sørensen MK, Bakharev O, Jensen O, Jakobsen HJ, Skibsted J, Nielsen NC. Magic-angle spinning solid-state multinuclear NMR on low-field instrumentation. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2014; 238:20-25. [PMID: 24291330 DOI: 10.1016/j.jmr.2013.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Revised: 10/18/2013] [Accepted: 10/24/2013] [Indexed: 06/02/2023]
Abstract
Mobile and cost-effective NMR spectroscopy exploiting low-field permanent magnets is a field of tremendous development with obvious applications for arrayed large scale analysis, field work, and industrial screening. So far such demonstrations have concentrated on relaxation measurements and lately high-resolution liquid-state NMR applications. With high-resolution solid-state NMR spectroscopy being increasingly important in a broad variety of applications, we here introduce low-field magic-angle spinning (MAS) solid-state multinuclear NMR based on a commercial ACT 0.45 T 62 mm bore Halbach magnet along with a homebuilt FPGA digital NMR console, amplifiers, and a modified standard 45 mm wide MAS probe for 7 mm rotors. To illustrate the performance of the instrument and address cases where the low magnetic field may offer complementarity to high-field NMR experiments, we demonstrate applications for (23)Na MAS NMR with enhanced second-order quadrupolar coupling effects and (31)P MAS NMR where reduced influence from chemical shift anisotropy at low field may facilitate determination of heteronuclear dipole-dipole couplings.
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Affiliation(s)
- Morten K Sørensen
- Center for Insoluble Protein Structures (inSPIN), Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Oleg Bakharev
- Center for Insoluble Protein Structures (inSPIN), Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Ole Jensen
- Nanonord A/S, Skjernvej 4A, DK-9220 Aalborg Ø, Denmark
| | - Hans J Jakobsen
- Instrument Centre for Solid-State NMR Spectroscopy, Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - Jørgen Skibsted
- Instrument Centre for Solid-State NMR Spectroscopy, Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - Niels Chr Nielsen
- Center for Insoluble Protein Structures (inSPIN), Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark.
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