101
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Sebest P, Fojt L, Ostatna V, Fojta M, Danhel A. Electrodeposited silver amalgam particles on pyrolytic graphite in (spectro)electrochemical detection of 4-nitrophenol, DNA and green fluorescent protein. Bioelectrochemistry 2020; 132:107436. [DOI: 10.1016/j.bioelechem.2019.107436] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/26/2019] [Accepted: 11/26/2019] [Indexed: 12/25/2022]
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102
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Mejía-Salazar JR, Rodrigues Cruz K, Materón Vásques EM, Novais de Oliveira Jr. O. Microfluidic Point-of-Care Devices: New Trends and Future Prospects for eHealth Diagnostics. SENSORS 2020; 20:s20071951. [PMID: 32244343 PMCID: PMC7180826 DOI: 10.3390/s20071951] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/09/2020] [Accepted: 03/20/2020] [Indexed: 12/15/2022]
Abstract
Point-of-care (PoC) diagnostics is promising for early detection of a number of diseases, including cancer, diabetes, and cardiovascular diseases, in addition to serving for monitoring health conditions. To be efficient and cost-effective, portable PoC devices are made with microfluidic technologies, with which laboratory analysis can be made with small-volume samples. Recent years have witnessed considerable progress in this area with “epidermal electronics”, including miniaturized wearable diagnosis devices. These wearable devices allow for continuous real-time transmission of biological data to the Internet for further processing and transformation into clinical knowledge. Other approaches include bluetooth and WiFi technology for data transmission from portable (non-wearable) diagnosis devices to cellphones or computers, and then to the Internet for communication with centralized healthcare structures. There are, however, considerable challenges to be faced before PoC devices become routine in the clinical practice. For instance, the implementation of this technology requires integration of detection components with other fluid regulatory elements at the microscale, where fluid-flow properties become increasingly controlled by viscous forces rather than inertial forces. Another challenge is to develop new materials for environmentally friendly, cheap, and portable microfluidic devices. In this review paper, we first revisit the progress made in the last few years and discuss trends and strategies for the fabrication of microfluidic devices. Then, we discuss the challenges in lab-on-a-chip biosensing devices, including colorimetric sensors coupled to smartphones, plasmonic sensors, and electronic tongues. The latter ones use statistical and big data analysis for proper classification. The increasing use of big data and artificial intelligence methods is then commented upon in the context of wearable and handled biosensing platforms for the Internet of things and futuristic healthcare systems.
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Affiliation(s)
- Jorge Ricardo Mejía-Salazar
- National Institute of Telecommunications (Inatel), 37540-000 Santa Rita do Sapucaí, MG, Brazil;
- Correspondence:
| | - Kamilla Rodrigues Cruz
- National Institute of Telecommunications (Inatel), 37540-000 Santa Rita do Sapucaí, MG, Brazil;
| | - Elsa María Materón Vásques
- Sao Carlos Institute of Physics, University of Sao Paulo, P.O. Box 369, 13560-970 Sao Carlos, SP, Brazil; (E.M.M.V.); (O.N.d.O.J.)
- Chemistry Department, Federal University of São Carlos, CP 676, São Carlos 13565-905, São Paulo, Brazil
| | - Osvaldo Novais de Oliveira Jr.
- Sao Carlos Institute of Physics, University of Sao Paulo, P.O. Box 369, 13560-970 Sao Carlos, SP, Brazil; (E.M.M.V.); (O.N.d.O.J.)
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103
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Gupta S, Sharma A, Verma RS. Polymers in biosensor devices for cardiovascular applications. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2020. [DOI: 10.1016/j.cobme.2019.10.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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104
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Paper-based point-of-care immunoassays: Recent advances and emerging trends. Biotechnol Adv 2020; 39:107442. [DOI: 10.1016/j.biotechadv.2019.107442] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 07/04/2019] [Accepted: 08/26/2019] [Indexed: 01/23/2023]
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105
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Chen LC, Wang E, Tai CS, Chiu YC, Li CW, Lin YR, Lee TH, Huang CW, Chen JC, Chen WL. Improving the reproducibility, accuracy, and stability of an electrochemical biosensor platform for point-of-care use. Biosens Bioelectron 2020; 155:112111. [PMID: 32217334 DOI: 10.1016/j.bios.2020.112111] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/12/2020] [Accepted: 02/18/2020] [Indexed: 11/15/2022]
Abstract
Electrochemical biosensors possess numerous desirable qualities for target detection, such as portability and ease of use, and are often considered for point-of-care (POC) development. Label-free affinity electrochemical biosensors constructed with semiconductor manufacturing technology (SMT)-produced electrodes and a streptavidin biomediator currently display the highest reproducibility, accuracy, and stability in modern biosensors. However, such biosensors still do not meet POC guidelines regarding these three characteristics. The purpose of this research was to resolve the limitations in reproducibility and accuracy caused by problems with production of the biosensors, with the aim of developing a platform capable of producing devices that exceed POC standards. SMT production settings were optimized and bioreceptor immobilization was improved through the use of a unique linker, producing a biosensor with exceptional reproducibility, impressive accuracy, and high stability. Importantly, the three characteristics of the sensors produced using the proposed platform all meet POC standards set by the Clinical and Laboratory Standards Institute (CLSI). This suggests possible approval of the biosensors for POC development. Furthermore, the detection range of the platform was demonstrated by constructing biosensors capable of detecting common POC targets, including circulating tumor cells (CTCs), DNA/RNA, and curcumin, and the devices were optimized for POC use. Overall, the platform developed in this study shows high potential for production of POC biosensors.
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Affiliation(s)
- Lung-Chieh Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Erick Wang
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
| | - Chun-San Tai
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Yuan-Chen Chiu
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Chang-Wei Li
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; AllBio Life Inc, Taichung, Taiwan
| | - Yan-Ren Lin
- Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan; School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Tsung-Han Lee
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Ching-Wen Huang
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Department of Emergency, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan; Division of Thoracic Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jung-Chih Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan; Institute of Biomedical Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Wen Liang Chen
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan.
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106
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Borràs-Brull M, Blondeau P, Riu J. The Use of Conducting Polymers for Enhanced Electrochemical Determination of Hydrogen Peroxide. Crit Rev Anal Chem 2020; 51:204-217. [PMID: 31992056 DOI: 10.1080/10408347.2020.1718482] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The role of hydrogen peroxide in a wide range of biological processes has led to a steady increase in research into hydrogen peroxide determination in recent years, and conducting polymers have attracted much interest in electrochemistry as promising materials in this area. We present an overview of electrochemical devices for hydrogen peroxide determination using conducting polymers, either as a target or as a byproduct of redox reactions. We describe different combinations of electrode modifications through the incorporation of conducting polymers as the main component along with other materials or nanomaterials. We critically compare the analytical performances cited and highlight some of the future challenges for the feasible application of such devices.
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Affiliation(s)
- Marta Borràs-Brull
- Department of Analytical and Organic Chemistry, Universitat Rovira i Virgili, Tarragona, Spain
| | - Pascal Blondeau
- Department of Analytical and Organic Chemistry, Universitat Rovira i Virgili, Tarragona, Spain
| | - Jordi Riu
- Department of Analytical and Organic Chemistry, Universitat Rovira i Virgili, Tarragona, Spain
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107
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Electrochemical biosensors based on nucleic acid aptamers. Anal Bioanal Chem 2020; 412:55-72. [PMID: 31912182 DOI: 10.1007/s00216-019-02226-x] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/12/2019] [Accepted: 10/18/2019] [Indexed: 02/07/2023]
Abstract
During recent decades, nucleic acid aptamers have emerged as powerful biological recognition elements for electrochemical affinity biosensors. These bioreceptors emulate or improve on antibody-based biosensors because of their excellent characteristics as bioreceptors, including limitless selection capacity for a large variety of analytes, easy and cost-effective production, high stability and reproducibility, simple chemical modification, stable and oriented immobilization on electrode surfaces, enhanced target affinity and selectivity, and possibility to design them in target-sensitive 3D folded structures. This review provides an overview of the state of the art of electrochemical aptasensor technology, focusing on novel aptamer-based electroanalytical assay configurations and providing examples to illustrate the different possibilities. Future prospects for this technology are also discussed. Graphical abstract.
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108
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Abstract
This review summarizes various radical polymerization chemistries for amplifying biodetection signals and compares them from the practical point of view.
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Affiliation(s)
- Seunghyeon Kim
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Hadley D. Sikes
- Department of Chemical Engineering
- Massachusetts Institute of Technology
- Cambridge
- USA
- Program in Polymers and Soft Matter
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109
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Souto DE, Volpe J, Gonçalves CDC, Ramos CH, Kubota LT. A brief review on the strategy of developing SPR-based biosensors for application to the diagnosis of neglected tropical diseases. Talanta 2019; 205:120122. [DOI: 10.1016/j.talanta.2019.120122] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/03/2019] [Accepted: 07/05/2019] [Indexed: 12/22/2022]
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110
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Smartphone‐coupled Electrochemical Analysis of Cellular Superoxide Anions Based on Mn
x
(PO
4
)
y
Monolayer Modified Porous Carbon. ELECTROANAL 2019. [DOI: 10.1002/elan.201900623] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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111
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Kutluk H, Bruch R, Urban GA, Dincer C. Impact of assay format on miRNA sensing: Electrochemical microfluidic biosensor for miRNA-197 detection. Biosens Bioelectron 2019; 148:111824. [PMID: 31698303 DOI: 10.1016/j.bios.2019.111824] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/19/2019] [Accepted: 10/24/2019] [Indexed: 12/20/2022]
Abstract
MicroRNAs (miRNAs) are important biomarkers for the early detection of various diseases, especially cancer. Therefore, there is a continuing interest in different biosensing strategies that allow for the point-of-care measurement of miRNAs. Almost all miRNA sensors utilize cross-hybridization of the target miRNA with a capture probe for the recognition, which can be designed in either a sandwich or a competitive format. In this work, we present a low-cost microfluidic biosensor platform for the electrochemical measurement of miRNA-197 (a tumor biomarker candidate) in undiluted human serum samples, operating with very low sample volumes (580 nl) and a sample-to-result time of one hour. For this purpose, different on-chip miRNA bioassays based on sandwich and competitive formats are developed and compared in terms of their sensitivity, dynamic range, selectivity, precision, and simplicity. The obtained results show that, despite having a narrower dynamic range when compared to the competitive format, the sandwich assay has superior performance regarding its sensitivity and selectivity. The lowest limit of detection which can be achieved with the sandwich assay is 1.28 nM (0.74 fmole), while 4.05 nM (2.35 fmole) with the competitive format. Moreover, the sandwich assay proves to have a better distinction against single-base mismatch oligonucleotide sequences compared to the competitive one. Due to its versatility and easy handling, overcoming the issue with the sensitivity, the implemented electrochemical microfluidic biosensor could pave the way for rapid and low-cost on-site miRNA diagnostics.
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Affiliation(s)
- Hazal Kutluk
- University of Freiburg, Department of Microsystems Engineering, Germany
| | - Richard Bruch
- University of Freiburg, Department of Microsystems Engineering, Germany; University of Freiburg Freiburg Center for Interactive Materials and Bioinspired Technologies, Germany
| | - Gerald A Urban
- University of Freiburg, Department of Microsystems Engineering, Germany; Freiburg Materials Research Center, Germany
| | - Can Dincer
- University of Freiburg, Department of Microsystems Engineering, Germany; University of Freiburg Freiburg Center for Interactive Materials and Bioinspired Technologies, Germany.
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112
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Mohammadniaei M, Nguyen HV, Tieu MV, Lee MH. 2D Materials in Development of Electrochemical Point-of-Care Cancer Screening Devices. MICROMACHINES 2019; 10:E662. [PMID: 31575012 PMCID: PMC6843145 DOI: 10.3390/mi10100662] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/28/2019] [Accepted: 09/29/2019] [Indexed: 02/07/2023]
Abstract
Effective cancer treatment requires early detection and monitoring the development progress in a simple and affordable manner. Point-of care (POC) screening can provide a portable and inexpensive tool for the end-users to conveniently operate test and screen their health conditions without the necessity of special skills. Electrochemical methods hold great potential for clinical analysis of variety of chemicals and substances as well as cancer biomarkers due to their low cost, high sensitivity, multiplex detection ability, and miniaturization aptitude. Advances in two-dimensional (2D) material-based electrochemical biosensors/sensors are accelerating the performance of conventional devices toward more practical approaches. Here, recent trends in the development of 2D material-based electrochemical biosensors/sensors, as the next generation of POC cancer screening tools, are summarized. Three cancer biomarker categories, including proteins, nucleic acids, and some small molecules, will be considered. Various 2D materials will be introduced and their biomedical applications and electrochemical properties will be given. The role of 2D materials in improving the performance of electrochemical sensing mechanisms as well as the pros and cons of current sensors as the prospective devices for POC screening will be emphasized. Finally, the future scopes of implementing 2D materials in electrochemical POC cancer diagnostics for the clinical translation will be discussed.
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Affiliation(s)
- Mohsen Mohammadniaei
- School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 06910, Korea.
| | - Huynh Vu Nguyen
- School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 06910, Korea.
| | - My Van Tieu
- School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 06910, Korea.
| | - Min-Ho Lee
- School of Integrative Engineering, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 06910, Korea.
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113
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Impedimetric Immunosensor Utilizing Polyaniline/Gold Nanocomposite-Modified Screen-Printed Electrodes for Early Detection of Chronic Kidney Disease. SENSORS 2019; 19:s19183990. [PMID: 31527396 PMCID: PMC6767334 DOI: 10.3390/s19183990] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/13/2019] [Accepted: 09/14/2019] [Indexed: 01/15/2023]
Abstract
The presence of small amounts of human serum albumin (HSA) in urine or microalbuminuria (30–300 µg/mL) is a valuable clinical biomarker for the early detection of chronic kidney disease (CKD). Herein, we report on the development of an inexpensive and disposable immunosensor for the sensitive, specific, and label-free detection of HSA using electrochemical impedance spectroscopy (EIS). We have utilized a simple one-step screen-printing protocol to fabricate the carbon-based three-electrode system on flexible plastic substrates. To enable efficient antibody immobilization and improved sensitivity, the carbon working electrode was sequentially modified with electropolymerized polyaniline (PANI) and electrodeposited gold nanocrystals (AuNCs). The PANI matrix serves as an interconnected nanostructured scaffold for homogeneous distribution of AuNCs and the resulting PANI/AuNCs nanocomposite synergically improved the immunosensor response. The PANI/AuNCs-modified working electrode surface was characterized using scanning electron microscopy (SEM) and the electrochemical response at each step was analyzed using EIS in a ferri/ferrocyanide redox probe solution. The normalized impedance variation during immunosensing increased linearly with HSA concentration in the range of 3–300 µg/mL and a highly repeatable response was observed for each concentration. Furthermore, the immunosensor displayed high specificity when tested using spiked sample solutions containing different concentrations of actin protein and J82 cell lysate (a complex fluid containing a multitude of interfering proteins). Consequently, these experimental results confirm the feasibility of the proposed immunosensor for early diagnosis and prognosis of CKD at the point of care.
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114
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Noor Azam NF, Mohammad NA, Lim SA, Ahmed MU. A Label-free Cardiac Troponin T Electrochemiluminescence Immunosensor Enhanced by Graphene Nanoplatelets. ANAL SCI 2019; 35:973-978. [PMID: 31080197 DOI: 10.2116/analsci.19p105] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this study, a direct and label-free immunosensor was designed and constructed by modifying the screen-printed electrode with graphene nanoplatelets (GNPs) for the detection of the cardiac troponin T (cTnT). Firstly, GNPs were drop-casted onto carbon working electrode. Monoclonal cTnT antibodies were then immobilized on the GNPs via physical adsorption; finally, BSA was introduced to block non-specific binding sites. The detection of cTnT was performed using an electrochemiluminescence (ECL) technique with tris(bipyridine)ruthenium(II) chloride ([Ru(bpy)3]Cl2) used as a luminophore and TPrA (tripropylamine) as a co-reactant. The ECL intensity was demonstrated to be directly proportional to the cTnT concentration where a linear range from 100 pg mL-1 to 5 fg mL-1 of the cTnT detection was established. An extremely low limit of detection was achieved to be 0.05 fg mL-1 with an outstanding specificity. Additionally, this immunosensor showed excellent percentage recovery for real samples analyses in artificially spiked human serum.
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Affiliation(s)
- Nura Fazira Noor Azam
- Biosensors and Biotechnology Laboratory, Chemical Science Programme, Faculty of Science Universiti Brunei Darussalam
| | - Nur Afina Mohammad
- Biosensors and Biotechnology Laboratory, Chemical Science Programme, Faculty of Science Universiti Brunei Darussalam
| | | | - Minhaz Uddin Ahmed
- Biosensors and Biotechnology Laboratory, Chemical Science Programme, Faculty of Science Universiti Brunei Darussalam
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115
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Controllable synthesis of six corner star-like Cu2O/PEDOT-MWCNT composites and their performance toward electrochemical glucose sensing. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.06.124] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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116
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Khanmohammadi A, Aghaie A, Vahedi E, Qazvini A, Ghanei M, Afkhami A, Hajian A, Bagheri H. Electrochemical biosensors for the detection of lung cancer biomarkers: A review. Talanta 2019; 206:120251. [PMID: 31514848 DOI: 10.1016/j.talanta.2019.120251] [Citation(s) in RCA: 162] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/08/2019] [Accepted: 08/09/2019] [Indexed: 01/05/2023]
Abstract
Cancer is one of the most widespread challenges and important diseases, which has the highest mortality rate. Lung cancer is the most common type of cancer, so that about 25% of all cancer deaths are related to the lung cancer. The lung cancer is classified as two different types with different treatment methodology: the small cell lung carcinoma and nonsmall cell lung carcinoma are two categories of the lung cancer. Since the lung cancer is often in the latent period in its early stages, therefore, early diagnosis of lung cancer has many challenges. Hence, there is a need for sensitive and reliable tools for preclinical diagnosis of lung cancer. Therefore, many detection methods have been employed for early detection of lung cancer. As lung cancer tumors growth in the body, the cancerous cells release numerous DNA, proteins, and metabolites as special biomarkers of the lung cancer. The levels of these biomarkers show the stages of the lung cancer. Therefore, detection of the biomarkers can be used for screening and clinical diagnosis of the lung cancer. There are numerous biomarkers for the lung cancer such as EGFR, CEA, CYFRA 21-1, ENO1, NSE, CA 19-9, CA 125 and VEGF. Nowadays, electrochemical methods are very attractive and useful in the lung cancer detections. So, in this paper, the recent advances and improvements (2010-2018) in the electrochemical detection of the lung cancer biomarkers have been reviewed.
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Affiliation(s)
- Akbar Khanmohammadi
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ali Aghaie
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ensieh Vahedi
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ali Qazvini
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mostafa Ghanei
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Abbas Afkhami
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
| | - Ali Hajian
- Institute of Sensor and Actuator Systems, TU Wien, Vienna, Austria
| | - Hasan Bagheri
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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117
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Rajendran ST, Scarano E, Bergkamp MH, Capria AM, Cheng CH, Sanger K, Ferrari G, Nielsen LH, Hwu ET, Zór K, Boisen A. Modular, Lightweight, Wireless Potentiostat-on-a-Disc for Electrochemical Detection in Centrifugal Microfluidics. Anal Chem 2019; 91:11620-11628. [PMID: 31335122 DOI: 10.1021/acs.analchem.9b02026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Interfacing electrochemical sensors in a lab-on-a-disc (LoD) system with a potentiostat is often tedious and challenging. We here present the first multichannel, modular, lightweight, and wirelessly powered, custom-built potentiostat-on-a-disc (PoD) for centrifugal microfluidic applications. The developed potentiostat is in the form factor of a typical digital video disc (DVD) and weighs only 127 g. The design of the potentiostat facilitates easy and robust interfacing with the electrodes in the LoD system, while enabling real-time electrochemical detection during rotation. The device can perform different electroanalytical techniques such as cyclic voltammetry, square wave voltammetry, and amperometry while being controlled by custom-made software. Measurements were conducted with and without rotation using both in-house fabricated and commercial electrodes. The performance of the PoD was in good agreement with the results obtained using a commercial potentiostat with a measured current resolution of 200 pA. As a proof of concept, we performed a real-time release study of an electrochemically active compound from microdevices used for drug delivery.
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Affiliation(s)
- Sriram Thoppe Rajendran
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology , Technical University of Denmark , 2800 Kongens Lyngby , Denmark
| | - Ermes Scarano
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology , Technical University of Denmark , 2800 Kongens Lyngby , Denmark.,Department of Electrical Engineering and Information Technology , University of Naples Federico II , 80138 Naples , Italy
| | - Max H Bergkamp
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology , Technical University of Denmark , 2800 Kongens Lyngby , Denmark.,Department of Applied Physics and Biomedical Engineering, Molecular Biosensors for Medical Diagnostics , Eindhoven University of Technology , 5612 AE Eindhoven , The Netherlands
| | - Alessandro M Capria
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology , Technical University of Denmark , 2800 Kongens Lyngby , Denmark.,Department of Electrical Engineering and Information Technology , University of Naples Federico II , 80138 Naples , Italy
| | - Chung-Hsiang Cheng
- Department of Mechanical Engineering , National Taiwan University , Taipei 10617 , Taiwan
| | - Kuldeep Sanger
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology , Technical University of Denmark , 2800 Kongens Lyngby , Denmark
| | - Giorgio Ferrari
- Department of Electronics Engineering , Polytechnic University of Milan , 20133 Milan , Italy
| | - Line H Nielsen
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology , Technical University of Denmark , 2800 Kongens Lyngby , Denmark
| | - En-Te Hwu
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology , Technical University of Denmark , 2800 Kongens Lyngby , Denmark
| | - Kinga Zór
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology , Technical University of Denmark , 2800 Kongens Lyngby , Denmark
| | - Anja Boisen
- Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology , Technical University of Denmark , 2800 Kongens Lyngby , Denmark
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118
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Shukla RP, Ben‐Yoav H. A Chitosan-Carbon Nanotube-Modified Microelectrode for In Situ Detection of Blood Levels of the Antipsychotic Clozapine in a Finger-Pricked Sample Volume. Adv Healthc Mater 2019; 8:e1900462. [PMID: 31240866 DOI: 10.1002/adhm.201900462] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/07/2019] [Indexed: 01/06/2023]
Abstract
The antipsychotic clozapine is the most effective medication available for schizophrenia and it is the only antipsychotic with a known efficacious clinical range. However, it is dramatically underutilized due to the inability to test clozapine blood levels in finger-pricked patients' samples. This prevents obtaining immediate blood levels information, resulting in suboptimal treatment. The development of an electrochemical microsensor is presented, which enables, for the first time, clozapine detection in microliters volume whole blood. The sensor is based on a microelectrode modified with micrometer-thick biopolymer chitosan encapsulating carbon nanotubes. The developed sensor detects clozapine oxidation current, in the presence of other electroactive species in the blood, which generate overlapping electrochemical signals. Clozapine detection, characterized in whole blood from healthy volunteers, displays a sensitivity of 32 ± 3.0 µA cm-2 µmol-1 L and a limit-of-detection of 0.5 ± 0.03 µmol L-1 . Finally, the developed sensor displays a reproducible electrochemical signal (0.6% relative standard deviation) and high storage stability (9.8% relative standard deviation after 8 days) in serum samples and high repeatability (9% relative standard deviation for the 5th repetition) in whole blood samples. By enabling the rapid and minimally invasive clozapine detection at the point-of-care, an optimal schizophrenia treatment is provided.
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Affiliation(s)
- Rajendra P. Shukla
- Nanobioelectronics LaboratoryDepartment of Biomedical EngineeringBen‐Gurion University of the Negev Beer‐Sheva 8410501 Israel
| | - Hadar Ben‐Yoav
- Nanobioelectronics LaboratoryDepartment of Biomedical EngineeringBen‐Gurion University of the Negev Beer‐Sheva 8410501 Israel
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119
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Yagati AK, Go A, Chavan SG, Baek C, Lee MH, Min J. Nanostructured Au-Pt hybrid disk electrodes for enhanced parathyroid hormone detection in human serum. Bioelectrochemistry 2019; 128:165-174. [DOI: 10.1016/j.bioelechem.2019.04.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/09/2019] [Accepted: 04/09/2019] [Indexed: 12/22/2022]
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120
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Cao Z, Duan F, Huang X, Liu Y, Zhou N, Xia L, Zhang Z, Du M. A multiple aptasensor for ultrasensitive detection of miRNAs by using covalent-organic framework nanowire as platform and shell-encoded gold nanoparticles as signal labels. Anal Chim Acta 2019; 1082:176-185. [PMID: 31472706 DOI: 10.1016/j.aca.2019.07.062] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 07/24/2019] [Accepted: 07/29/2019] [Indexed: 01/03/2023]
Abstract
We report herein a novel multiple electrochemical aptasensor based on covalent-organic framework (COF) for sensitive and simultaneous detection of miRNA 155 and miRNA 122, by using shell-encoded gold nanoparticles (Au NPs) as signal labels (AgNCs@AuNPs and Cu2O@AuNPs, respectively, NCs = nanoclusters). A new COF nanowire was synthesized via condensation polymerization of 1,3,6,8-tetra(4-carboxylphenyl)pyrene and melamine (represented by TBAPy-MA-COF-COOH) for multiple aptasensor fabrication. The nanowire was then used as a platform for anchoring single-strand DNA (ssDNA), which was hybridized with the complementary aptamer (cApt) probes of miRNA 155 and miRNA 122. AgNCs@AuNPs and Cu2O@AuNPs modified with cApts show separated differential pulse voltammetry (DPV) peaks at 0.08 and -0.1 V, respectively. The signal labels immobilized with cApts were released from the hybridized DNA complex and bound to their corresponding targets when contacting miRNAs. This phenomenon results in the substantial decline of the DPV peak current density of the signal labels. The developed TBAPy-MA-COF-COOH-based aptasensor has superior performance for sensing miRNA 155 and miRNA 122 simultaneously, with ultrasensitive low detection limits of 6.7 and 1.5 fM (S/N = 3), respectively, a wide linear range of 0.01-1000 pM, and high selectivity and applicability for serum samples. The proposed TBAPy-MA-based aptasensor demonstrates potential for simultaneous detection of multiple cancer biomarkers by replacing other ssDNA and aptamer strands.
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Affiliation(s)
- Zhengming Cao
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052, PR China
| | - Fenghe Duan
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou, University of Light Industry, No. 136, Science Avenue, Zhengzhou, 450001, PR China
| | - Xiaoyu Huang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052, PR China
| | - Yang Liu
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052, PR China
| | - Nan Zhou
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052, PR China.
| | - Lei Xia
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East Road, Zhengzhou, 450052, PR China
| | - Zhihong Zhang
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou, University of Light Industry, No. 136, Science Avenue, Zhengzhou, 450001, PR China.
| | - Miao Du
- Henan Provincial Key Laboratory of Surface and Interface Science, Zhengzhou, University of Light Industry, No. 136, Science Avenue, Zhengzhou, 450001, PR China.
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121
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Porfir’eva AV, Shibaeva KS, Evtyugin VG, Yakimova LS, Stoikov II, Evtyugin GA. An Electrochemical DNA Sensor for Doxorubicin Based on a Polyelectrolyte Complex and Aminated Thiacalix[4]Arene. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s1061934819070086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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122
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Tavares APM, Truta LAANA, Moreira FTC, Carneiro LPT, Sales MGF. Self-powered and self-signalled autonomous electrochemical biosensor applied to cancinoembryonic antigen determination. Biosens Bioelectron 2019; 140:111320. [PMID: 31150987 DOI: 10.1016/j.bios.2019.111320] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/09/2019] [Accepted: 05/11/2019] [Indexed: 12/21/2022]
Abstract
This work describes a novel and disruptive electrochemical biosensing device that is self-powered by light and self-signalled by an optical readout. Electrical energy requirements are ensured by a photovoltaic cell that is a dye sensitized solar cell (DSSC), in which one of the electrodes is the biosensing unit. The readout converts electrical energy into colour by an electrochromic cell and signals the concentration dependent event. This device was designed to target a cancer biomarker, cancinoembryonic antigen (CEA). In brief, the sensing unit was assembled on a conductive glass substrate with a highly conductive poly(3,4-ethylenedioxythiophene) (PEDOT) layer, using a molecularly-imprinted polymer of polypyrrol (PPy) as biorecognition element. This sensing unit acted as the counter electrode (CE) of the DSSC, generating a hybrid device with a maximum power conversion efficiency of 3.45% for a photoanode area of 0.7 cm2. The hybrid DSSC/biosensor had an electrical output that was CEA concentration dependent from 100 ng/mL to 100 μg/mL, with a limit detection of 0.14 ng/mL in human urine samples. The electrochromic cell consisted of a PEDOT-based material and showed a colour gradient change for CEA concentrations, ranging from 0.1 ng/mL to 100 μg/mL. Overall, this self-powered and self-signalled set-up is equipment free and particularly suitable for point-of-care analysis (POC), being able to screen CEA in real samples and differentiating critical concentrations for establishing a diagnosis. It holds the potential to provide clinical relevant data anywhere, in a fully independent manner.
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Affiliation(s)
- Ana P M Tavares
- BioMark-CEB/ISEP, School of Engineering, Polytechnic Institute of Porto, Portugal
| | | | | | - Liliana P T Carneiro
- BioMark-CEB/ISEP, School of Engineering, Polytechnic Institute of Porto, Portugal
| | - M Goreti F Sales
- BioMark-CEB/ISEP, School of Engineering, Polytechnic Institute of Porto, Portugal.
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123
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Yang J, Wang K, Xu H, Yan W, Jin Q, Cui D. Detection platforms for point-of-care testing based on colorimetric, luminescent and magnetic assays: A review. Talanta 2019; 202:96-110. [PMID: 31171232 DOI: 10.1016/j.talanta.2019.04.054] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/03/2019] [Accepted: 04/20/2019] [Indexed: 12/14/2022]
Abstract
Along with the considerable potential and increasing demand of the point-of-care testing (POCT), corresponding detection platforms have attracted great interest in both academic and practical fields. The first few generations of conventional detection devices tend to be costly, complicated to operate and hard to move on account of early limitations in the level of technological development and relatively high requirement of performance. Owing to the requirements for rapidity, simplicity, accuracy and cost controlling in the POCT, reader systems are urgently needed to be developed, upgraded and modified constantly, realizing on-site testing and healthcare management without a specific place or cumbersome operation. Accordingly, numerous rapid detection platforms with diverse size and performance have emerged such as bench-top apparatuses, handheld devices and intelligent detection devices. This review discusses various devices developed mainly for the detection of lateral flow test strips (LFTSs) or microfluidic strips in the POCT and summarizes these devices by size and portability. Furthermore, on the basis of various detection methods and diverse probes usually containing specific nanoparticles composites, three most common aspects of detection rationale in the POCT are selected to elaborate each kind of detection platforms in this paper: colorimetric assay, luminescent detection and magnetic signal detection. Herein, we focus on their structures, detection mechanisms and assay results, accompany with discussions and comments on the performances, costs and potential application, as well as advantages and limitations of each technique. In addition, perspectives on the future advances of detection platforms and some conclusions are proposed.
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Affiliation(s)
- Jinchuan Yang
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai Engineering Research Center for Intelligent diagnosis and treatment instrument, Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Shanghai, 200240, PR China.
| | - Kan Wang
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai Engineering Research Center for Intelligent diagnosis and treatment instrument, Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Shanghai, 200240, PR China.
| | - Hao Xu
- School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
| | - Wenqiang Yan
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai Engineering Research Center for Intelligent diagnosis and treatment instrument, Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Shanghai, 200240, PR China.
| | - Qinghui Jin
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China; Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, PR China.
| | - Daxiang Cui
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai Engineering Research Center for Intelligent diagnosis and treatment instrument, Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Shanghai, 200240, PR China.
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124
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Eksin E, Erdem A, Fafal T, Kıvçak B. Eco‐friendly Sensors Developed by Herbal Based Silver Nanoparticles for Electrochemical Detection of Mercury (II) Ion. ELECTROANAL 2019. [DOI: 10.1002/elan.201800776] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ece Eksin
- Analytical Chemistry Department, Faculty of PharmacyEge University 35100, Bornova Izmir Turkey
- The Institute of Natural and Applied Sciences, Biotechnology DepartmentEge University 35100, Bornova Izmir Turkey
| | - Arzum Erdem
- Analytical Chemistry Department, Faculty of PharmacyEge University 35100, Bornova Izmir Turkey
- The Institute of Natural and Applied Sciences, Biotechnology DepartmentEge University 35100, Bornova Izmir Turkey
| | - Tugce Fafal
- Pharmacognosy Department, Faculty of PharmacyEge University 35100, Bornova Izmir Turkey
| | - Bijen Kıvçak
- Pharmacognosy Department, Faculty of PharmacyEge University 35100, Bornova Izmir Turkey
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125
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Zhu G, Yin X, Jin D, Zhang B, Gu Y, An Y. Paper-based immunosensors: Current trends in the types and applied detection techniques. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2018.09.027] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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126
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Della Ventura B, Gelzo M, Battista E, Alabastri A, Schirato A, Castaldo G, Corso G, Gentile F, Velotta R. Biosensor for Point-of-Care Analysis of Immunoglobulins in Urine by Metal Enhanced Fluorescence from Gold Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2019; 11:3753-3762. [PMID: 30609355 DOI: 10.1021/acsami.8b20501] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Biosensors are easy-to-use and cost-effective devices that are emerging as an attractive tool, not only in settling diagnosis or in disease monitoring, but also in mass screening tests, a timely topic that impacts on daily life of the whole society. Nanotechnologies lend themselves to the development of highly sensitive devices whose realization has become a very interdisciplinary topic. Relying on the enhancement of the fluorescence signal detected at the surface of patterned gold nanoparticles, we report the behavior of an analytical device in detecting immunoglobulins in real urine samples that shows a limit of detection of approximately 8 μg/L and a linear range of 10-100 μg/L well below the detection limit of nephelometric method, which is the reference method for this analysis. These performances have been reached thanks to an effective surface functionalization technique and can be improved even more if superydrophobic features of the substrate we produce will be exploited. Since the analyte recognition is realized by antibodies the specificity is very high and, in fact, no interference has been detected by other compounds also present in the real urine samples. The device has been assessed on serum samples by comparing IgG concentrations values obtained by the biosensor with those provided by a nephelometer. In this step we found that our approach allows the analysis of the whole blood without any pretreatment; moreover, it is inherently extendable to the analysis of most biochemical markers in biological fluids.
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Affiliation(s)
- Bartolomeo Della Ventura
- Dipartimento di Fisica Ettore Pancini , Università di Napoli Federico II , Via Cintia, 26 Ed. 6 , 80126 Napoli , Italy
| | - Monica Gelzo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche , Università di Napoli Federico II , Via Pansini 5 , 80131 Napoli , Italy
- CEINGE-Biotecnologie avanzate s.c. a r.l., Via Gaetano Salvatore 486 , 80145 Napoli , Italy
| | - Edmondo Battista
- Centro di Ricerca Interdipartimentale sui Biomateriali , Università degli Studi di Napoli "Federico II" , Ple Tecchio 80 , 80125 Napoli , Italy
| | - Alessandro Alabastri
- Electrical and Computer Engineering Department , Rice University , 6100 Main Street , Houston , Texas 77005 , United States
| | - Andrea Schirato
- Dipartimento di Fisica , Politecnico di Milano , Piazza L. da Vinci 32 , 20133 Milano , Italy
| | - Giuseppe Castaldo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche , Università di Napoli Federico II , Via Pansini 5 , 80131 Napoli , Italy
- CEINGE-Biotecnologie avanzate s.c. a r.l., Via Gaetano Salvatore 486 , 80145 Napoli , Italy
| | - Gaetano Corso
- Dipartimento di Medicina Clinica e Sperimentale , Università di Foggia , 70122 Viale Pinto , Foggia , Italy
| | - Francesco Gentile
- Dipartimento di Ingegneria Elettrica e Tecnologie dell'Informazione , Università di Napoli Federico II , via Claudio 21 , 80125 Napoli , Italy
| | - Raffaele Velotta
- Dipartimento di Fisica Ettore Pancini , Università di Napoli Federico II , Via Cintia, 26 Ed. 6 , 80126 Napoli , Italy
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127
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Optical, electrochemical and catalytic methods for in-vitro diagnosis using carbonaceous nanoparticles: a review. Mikrochim Acta 2019; 186:50. [DOI: 10.1007/s00604-018-3110-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 11/25/2018] [Indexed: 12/16/2022]
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128
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Shaikh MO, Zhu PY, Wang CC, Du YC, Chuang CH. Electrochemical immunosensor utilizing electrodeposited Au nanocrystals and dielectrophoretically trapped PS/Ag/ab-HSA nanoprobes for detection of microalbuminuria at point of care. Biosens Bioelectron 2018; 126:572-580. [PMID: 30500772 DOI: 10.1016/j.bios.2018.11.035] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 11/11/2018] [Accepted: 11/20/2018] [Indexed: 12/20/2022]
Abstract
In this study, we have fabricated a simple disposable electrochemical immunosensor for the point of care testing of microalbuminuria, a well-known clinical biomarker for the onset of chronic kidney disease. The immunosensor is fabricated by screen-printing carbon interdigitated microelectrodes on a flexible plastic substrate and utilizes electrochemical impedance spectroscopy to enable direct and label free immunosensing by analyzing interfacial changes on the electrode surface. To improve conductivity and biocompatibility of the screen-printed electrodes, we have modified it with gold nanoparticles, which are electrodeposited using linear sweep voltammetry. To enable efficient immobilization of HSA antibodies, we have developed novel PS/Ag/ab-HSA nanoprobes (polystyrene nanoparticle core with silver nanoshells covalently conjugated to HSA antibodies), and these nanoprobes are trapped on the electrode surface using dielectrophoresis. Each immunosensor has two sensing sites corresponding to test and control to improve specificity by performing differential analysis. Immunosensing results show that the normalized impedance response is linearly dependent on albumin concentration in the clinically relevant range with good repeatability. We have also developed a portable impedance readout module that can analyze the data obtained from the immunosensor and transmit it wirelessly for cloud computing. Consequently, the developed immunosensing platform can be extended to the detection of a range of immunoreactions and shows promise for point of diagnosis and public healthcare monitoring.
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Affiliation(s)
- Muhammad Omar Shaikh
- Institute of Medical Science and Technology, National Sun Yat-sen University, Taiwan
| | - Pei-Yu Zhu
- Department of Mechanical Engineering, Southern Taiwan University of Science and Technology, Taiwan
| | - Cheng-Chien Wang
- Department of Chemistry and Material Engineering, Southern Taiwan University of Science and Technology, Taiwan
| | - Yi-Chun Du
- Department of Electrical Engineering, Southern Taiwan University of Science and Technology, Taiwan
| | - Cheng-Hsin Chuang
- Institute of Medical Science and Technology, National Sun Yat-sen University, Taiwan.
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129
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Tran VK, Ko E, Geng Y, Kim MK, Jin GH, Son SE, Hur W, Seong GH. Micro-patterning of single-walled carbon nanotubes and its surface modification with gold nanoparticles for electrochemical paper-based non-enzymatic glucose sensor. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.08.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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130
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Vlăsceanu GM, Amărandi RM, Ioniță M, Tite T, Iovu H, Pilan L, Burns JS. Versatile graphene biosensors for enhancing human cell therapy. Biosens Bioelectron 2018; 117:283-302. [DOI: 10.1016/j.bios.2018.04.053] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/18/2018] [Accepted: 04/25/2018] [Indexed: 01/04/2023]
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131
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Aydindogan E, Guler Celik E, Timur S. Paper-Based Analytical Methods for Smartphone Sensing with Functional Nanoparticles: Bridges from Smart Surfaces to Global Health. Anal Chem 2018; 90:12325-12333. [PMID: 30222319 DOI: 10.1021/acs.analchem.8b03120] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In this Feature, the most recent developments as well as "pros and cons" in smartphone sensing, which have been developed using various functional nanoparticles in paper-based sensing systems, will be discussed. Additionally, smart phone sensing and POC combination as a potential tool that opens a gate for knowledge flow "from lab scale data to public use" will be evaluated.
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Affiliation(s)
- Eda Aydindogan
- Ege University , Faculty of Science, Biochemistry Department , 35100 , Bornova, Izmir , Turkey
| | - Emine Guler Celik
- Ege University , Faculty of Science, Biochemistry Department , 35100 , Bornova, Izmir , Turkey
| | - Suna Timur
- Ege University , Faculty of Science, Biochemistry Department , 35100 , Bornova, Izmir , Turkey.,Central Research Testing and Analysis Laboratory Research and Application Center , Ege University , 35100 , Bornova, Izmir , Turkey
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132
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Bertok T, Lorencova L, Chocholova E, Jane E, Vikartovska A, Kasak P, Tkac J. Electrochemical Impedance Spectroscopy Based Biosensors: Mechanistic Principles, Analytical Examples and Challenges towards Commercialization for Assays of Protein Cancer Biomarkers. ChemElectroChem 2018. [DOI: 10.1002/celc.201800848] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tomas Bertok
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Lenka Lorencova
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Erika Chocholova
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Eduard Jane
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Alica Vikartovska
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Peter Kasak
- Center for Advanced MaterialsQatar University Doha 2713 Qatar
| | - Jan Tkac
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
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133
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Hassanain WA, Izake EL, Ayoko GA. Spectroelectrochemical Nanosensor for the Determination of Cystatin C in Human Blood. Anal Chem 2018; 90:10843-10850. [DOI: 10.1021/acs.analchem.8b02121] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Waleed A. Hassanain
- Nanotechnology and Molecular Science Discipline, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane 4000, Australia
| | - Emad L. Izake
- Nanotechnology and Molecular Science Discipline, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane 4000, Australia
| | - Godwin A. Ayoko
- Nanotechnology and Molecular Science Discipline, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane 4000, Australia
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134
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Paschoalino WJ, Kogikoski S, Barragan JTC, Giarola JF, Cantelli L, Rabelo TM, Pessanha TM, Kubota LT. Emerging Considerations for the Future Development of Electrochemical Paper-Based Analytical Devices. ChemElectroChem 2018. [DOI: 10.1002/celc.201800677] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Waldemir J. Paschoalino
- Department of Analytical Chemistry, Institute of Chemistry; State University of Campinas (UNICAMP); P.O. Box 6154 13083-970 Campinas-SP Brazil
| | - Sergio Kogikoski
- Department of Analytical Chemistry, Institute of Chemistry; State University of Campinas (UNICAMP); P.O. Box 6154 13083-970 Campinas-SP Brazil
| | - José T. C. Barragan
- Department of Analytical Chemistry, Institute of Chemistry; State University of Campinas (UNICAMP); P.O. Box 6154 13083-970 Campinas-SP Brazil
| | - Juliana F. Giarola
- Department of Analytical Chemistry, Institute of Chemistry; State University of Campinas (UNICAMP); P.O. Box 6154 13083-970 Campinas-SP Brazil
| | - Lory Cantelli
- Department of Analytical Chemistry, Institute of Chemistry; State University of Campinas (UNICAMP); P.O. Box 6154 13083-970 Campinas-SP Brazil
| | - Thais M. Rabelo
- Department of Analytical Chemistry, Institute of Chemistry; State University of Campinas (UNICAMP); P.O. Box 6154 13083-970 Campinas-SP Brazil
| | - Tatiana M. Pessanha
- Department of Analytical Chemistry, Institute of Chemistry; State University of Campinas (UNICAMP); P.O. Box 6154 13083-970 Campinas-SP Brazil
| | - Lauro T. Kubota
- Department of Analytical Chemistry, Institute of Chemistry; State University of Campinas (UNICAMP); P.O. Box 6154 13083-970 Campinas-SP Brazil
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135
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Montes-Cebrián Y, Del Torno-de Román L, Álvarez-Carulla A, Colomer-Farrarons J, Minteer SD, Sabaté N, Miribel-Català PL, Esquivel JP. 'Plug-and-Power' Point-of-Care diagnostics: A novel approach for self-powered electronic reader-based portable analytical devices. Biosens Bioelectron 2018; 118:88-96. [PMID: 30056304 DOI: 10.1016/j.bios.2018.07.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 07/13/2018] [Accepted: 07/16/2018] [Indexed: 12/27/2022]
Abstract
This paper presents an innovative approach in the portable Point-of-Care diagnostics field, the Plug-and-Power concept. In this new disposable sensor and plug-and-play reader paradigm, the energy required to perform a measurement is always available within the disposable test component. The reader unit contains all the required electronic modules to run the test, process data and display the result, but does not include any battery or power source. Instead, the disposable part acts as both the sensor and the power source. Additionally, this approach provides environmental benefits related to battery usage and disposal, as the paper-based power source has non-toxic redox chemistry that makes it eco-friendly and safe to follow the same waste stream as disposable test strips. The feasibility of this Plug-and-Power approach is demonstrated in this work with the development of a self-powered portable glucometer consisting of two parts: a test strip including a paper-based power source and a paper-based biofuel cell as a glucose sensor; and an application-specific battery-less electronic reader designed to extract the energy from the test strip, process the signal provided and show the glucose concentration on a display. The device was tested with human serum samples with glucose concentrations between 5 and 30 mM, providing quantitative results in good agreement with commercial measuring instruments. The advantages of the present approach can be extended to any kind of biosensors measuring different analytes and biological matrices, and in this way, strengthen the goals of Point-of-Care diagnostics towards laboratory decentralization, personalized medicine and improving patient compliance.
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Affiliation(s)
- Yaiza Montes-Cebrián
- Discrete-to-Integrated (D2In) Research Group, Department of Electronic and Biomedical Engineering, Faculty of Physics, University of Barcelona (UB), 1st Martí i Franquès St., 08028 Barcelona, Spain.
| | - Lorena Del Torno-de Román
- Instituto de Microelectrónica de Barcelona IMB-CNM (CSIC), C/ del Til·lers, Campus Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Barcelona, Spain.
| | - Albert Álvarez-Carulla
- Discrete-to-Integrated (D2In) Research Group, Department of Electronic and Biomedical Engineering, Faculty of Physics, University of Barcelona (UB), 1st Martí i Franquès St., 08028 Barcelona, Spain.
| | - Jordi Colomer-Farrarons
- Discrete-to-Integrated (D2In) Research Group, Department of Electronic and Biomedical Engineering, Faculty of Physics, University of Barcelona (UB), 1st Martí i Franquès St., 08028 Barcelona, Spain.
| | - Shelley D Minteer
- Department of Chemistry, University of Utah, 315 S 1400 E Room 2020, Salt Lake City, UT 84112, USA.
| | - Neus Sabaté
- Instituto de Microelectrónica de Barcelona IMB-CNM (CSIC), C/ del Til·lers, Campus Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Barcelona, Spain; Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain; Fuelium, Av. De Can Domenech - Edifici Eureka, Campus de la UAB, 08193 Bellaterra, Barcelona, Spain.
| | - Pere Ll Miribel-Català
- Discrete-to-Integrated (D2In) Research Group, Department of Electronic and Biomedical Engineering, Faculty of Physics, University of Barcelona (UB), 1st Martí i Franquès St., 08028 Barcelona, Spain.
| | - Juan Pablo Esquivel
- Instituto de Microelectrónica de Barcelona IMB-CNM (CSIC), C/ del Til·lers, Campus Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Barcelona, Spain.
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136
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Eguílaz M, Villalonga R, Rivas G. Electrochemical biointerfaces based on carbon nanotubes-mesoporous silica hybrid material: Bioelectrocatalysis of hemoglobin and biosensing applications. Biosens Bioelectron 2018; 111:144-151. [DOI: 10.1016/j.bios.2018.04.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 03/29/2018] [Accepted: 04/03/2018] [Indexed: 01/06/2023]
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137
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Denisov I, Lukyanenko K, Yakimov A, Kukhtevich I, Esimbekova E, Belobrov P. Disposable luciferase-based microfluidic chip for rapid assay of water pollution. LUMINESCENCE 2018; 33:1054-1061. [DOI: 10.1002/bio.3508] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 04/22/2018] [Accepted: 04/30/2018] [Indexed: 12/16/2022]
Affiliation(s)
| | | | | | | | - Elena Esimbekova
- Siberian Federal University; Krasnoyarsk Russia
- Institute of Biophysics SB RAS Federal Research Center'Krasnoyarsk Science Center SB RAS’; Krasnoyarsk Russia
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138
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Mao Y, Guo L, Ning X, Li J, Zheng J. The Signal Amplification in Electrochemical Detection of Chloramphenicol Using Sulfonated Polyaniline-chitosan Composite as Redox Capacitor. ELECTROANAL 2018. [DOI: 10.1002/elan.201800218] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yanjun Mao
- College of Chemistry and Materials Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry; Northwest University; Xi'an 710069 P. R. China
| | - Liping Guo
- College of Chemistry and Materials Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry; Northwest University; Xi'an 710069 P. R. China
| | - Xiaohui Ning
- College of Chemistry and Materials Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry; Northwest University; Xi'an 710069 P. R. China
| | - Jian Li
- College of Chemistry and Materials Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry; Northwest University; Xi'an 710069 P. R. China
| | - Jianbin Zheng
- College of Chemistry and Materials Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry; Northwest University; Xi'an 710069 P. R. China
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139
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Kumar S, Sarita, Nehra M, Dilbaghi N, Tankeshwar K, Kim KH. Recent advances and remaining challenges for polymeric nanocomposites in healthcare applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.03.001] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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140
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Miniaturized Bio-and Chemical-Sensors for Point-of-Care Monitoring of Chronic Kidney Diseases. SENSORS 2018; 18:s18040942. [PMID: 29565315 PMCID: PMC5948530 DOI: 10.3390/s18040942] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 03/15/2018] [Accepted: 03/20/2018] [Indexed: 01/14/2023]
Abstract
This review reports the latest achievements in point-of-care (POC) sensor technologies for the monitoring of ammonia, creatinine and urea in patients suffering of chronic kidney diseases (CKDs). Abnormal levels of these nitrogen biomarkers are found in the physiological fluids, such as blood, urine and sweat, of CKD patients. Delocalized at-home monitoring of CKD biomarkers via integration of miniaturized, portable, and low cost chemical- and bio-sensors in POC devices, is an emerging approach to improve patients’ health monitoring and life quality. The successful monitoring of CKD biomarkers, performed on the different body fluids by means of sensors having strict requirements in term of size, cost, large-scale production capacity, response time and simple operation procedures for use in POC devices, is reported and discussed.
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141
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Tuteja SK, Ormsby C, Neethirajan S. Noninvasive Label-Free Detection of Cortisol and Lactate Using Graphene Embedded Screen-Printed Electrode. NANO-MICRO LETTERS 2018; 10:41. [PMID: 30393690 PMCID: PMC6199085 DOI: 10.1007/s40820-018-0193-5] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Accepted: 01/23/2018] [Indexed: 05/25/2023]
Abstract
ABSTRACT A sensitive and specific immunosensor for the detection of the hormones cortisol and lactate in human or animal biological fluids, such as sweat and saliva, was devised using the label-free electrochemical chronoamperometric technique. By using these fluids instead of blood, the biosensor becomes noninvasive and is less stressful to the end user, who may be a small child or a farm animal. Electroreduced graphene oxide (e-RGO) was used as a synergistic platform for signal amplification and template for bioconjugation for the sensing mechanism on a screen-printed electrode. The cortisol and lactate antibodies were bioconjugated to the e-RGO using covalent carbodiimide chemistry. Label-free electrochemical chronoamperometric detection was used to analyze the response to the desired biomolecules over the wide detection range. A detection limit of 0.1 ng mL-1 for cortisol and 0.1 mM for lactate was established and a correlation between concentration and current was observed. A portable, handheld potentiostat assembled with Bluetooth communication and battery operation enables the developed system for point-of-care applications. A sandwich-like structure containing the sensing mechanisms as a prototype was designed to secure the biosensor to skin and use capillary action to draw sweat or other fluids toward the sensing mechanism. Overall, the immunosensor shows remarkable specificity, sensitivity as well as the noninvasive and point-of-care capabilities and allows the biosensor to be used as a versatile sensing platform in both developed and developing countries.
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Affiliation(s)
- Satish K Tuteja
- BioNano Lab, School of Engineering, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Connor Ormsby
- BioNano Lab, School of Engineering, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Suresh Neethirajan
- BioNano Lab, School of Engineering, University of Guelph, Guelph, ON, N1G 2W1, Canada.
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142
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Castro B, Sala de Medeiros M, Sadri B, Martinez RV. Portable and power-free serodiagnosis of Chagas disease using magnetic levitating microbeads. Analyst 2018; 143:4379-4386. [PMID: 30123917 DOI: 10.1039/c8an01374h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Magnetic levitating microbeads enable the point-of-care detection of Chagas antibodies in blood solutions using a portable magnetic stage requiring no electricity.
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Affiliation(s)
- Beatriz Castro
- Department of Animal Sciences
- Purdue University
- West Lafayette
- USA
| | | | - Behnam Sadri
- School of Industrial Engineering
- Purdue University
- West Lafayette
- USA
| | - Ramses V. Martinez
- School of Industrial Engineering
- Purdue University
- West Lafayette
- USA
- Weldon School of Biomedical Engineering
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143
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da Silva ETSG, Alves TMR, Kubota LT. Direct Toner Printing: A Versatile Technology for Easy Fabrication of Flexible Miniaturized Electrodes. ELECTROANAL 2017. [DOI: 10.1002/elan.201700717] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Everson T. S. G. da Silva
- Department of Analytical Chemistry; Institute of Chemistry-UNICAMP; P.O. Box 6154, 13084-974 Campinas-SP, Brazil
- National Institute of Science and Technology of Bioanalytics (INCTBio); 13083-970 Campinas-SP Brazil
| | - Thais M. R. Alves
- Department of Analytical Chemistry; Institute of Chemistry-UNICAMP; P.O. Box 6154, 13084-974 Campinas-SP, Brazil
- National Institute of Science and Technology of Bioanalytics (INCTBio); 13083-970 Campinas-SP Brazil
| | - Lauro T. Kubota
- Department of Analytical Chemistry; Institute of Chemistry-UNICAMP; P.O. Box 6154, 13084-974 Campinas-SP, Brazil
- National Institute of Science and Technology of Bioanalytics (INCTBio); 13083-970 Campinas-SP Brazil
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144
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Lapierre F, Gooley A, Breadmore M. Principles around Accurate Blood Volume Collection Using Capillary Action. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:14220-14225. [PMID: 29161045 DOI: 10.1021/acs.langmuir.7b02825] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Capillary action is one mechanism microfluidics uses to draw liquid autonomously in a substrate without the need of external energy. This behavior can be exploited to collect accurate volumes of liquids such as blood in narrow columns known as capillary tubes and help the development of inexpensive, user-friendly personalized biomedical tools. Precision bore glass capillaries demonstrate the "state of the art" for volume accuracy and precision, but height and radius must be carefully chosen in order to exploit the capillary action behavior efficiently. This Article investigates the influence of surface glass aging, due to prolonged exposure to humid air, and hematocrit level on the blood capillary rise. It provides also the tools to correctly define the optimum capillary dimensions to collect an accurate volume of blood in a glass capillary tube.
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Affiliation(s)
- Florian Lapierre
- ASTech, ARCTraining Centre for Portable Analytical Separation Technologies, University of Tasmania , Private Bag 75, Hobart, Tasmania 7001, Australia
- Australian Centre for Research on Separation Science, School of Physical Sciences, University of Tasmania , Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Andrew Gooley
- ASTech, ARCTraining Centre for Portable Analytical Separation Technologies, University of Tasmania , Private Bag 75, Hobart, Tasmania 7001, Australia
- Trajan Scientific and Medical, 7 Argent Place, Ringwood, Victoria 3134, Australia
| | - Michael Breadmore
- ASTech, ARCTraining Centre for Portable Analytical Separation Technologies, University of Tasmania , Private Bag 75, Hobart, Tasmania 7001, Australia
- Australian Centre for Research on Separation Science, School of Physical Sciences, University of Tasmania , Private Bag 75, Hobart, Tasmania 7001, Australia
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145
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Development and validation of an impedance biosensor for point-of-care detection of vascular cell adhesion molecule-1 toward lupus diagnostics. Future Sci OA 2017; 3:FSO224. [PMID: 28884017 PMCID: PMC5583674 DOI: 10.4155/fsoa-2017-0047] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 05/22/2017] [Indexed: 12/25/2022] Open
Abstract
Aim: Systemic lupus erythematosus is an autoimmune disease that requires chronic monitoring. In this study, we demonstrate a proof-of-concept study of a highly attractive noninvasive strategy for monitoring systemic lupus erythematosus through biomarker quantification. Results: This sensor technology requires 50 μl of urine to detect and quantify vascular cell adhesion molecule-1 in 15 min. The sensor used nonfaradaic detection to demonstrate performance with and without detection antibody. Binding of immunoassay and target biomarkers were quantified with an impedance electrical immunoassay and correlated with an equivalent circuit. Conclusion: The novel sensor technology demonstrates detection in the range of 8 fg/ml to 800 pg/ml and comparative analysis with ELISA platforms was performed for 12 patient urine samples. A proof-of-concept portable biosensing system for rapid screening of systemic lupus erythematosus through the use of a biomarker has been demonstrated. This sensor is an electronic urine test, which screens for vascular cell adhesion molecule. The efficacy of the sensor has been validated using a small cohort of patient urine samples that have been evaluated using standard clinical methods. This biosensor is the first demonstration of a consumer-friendly point-of-care test suitable for home monitoring.
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