51
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Xuan X, Qian M, Pan L, Lu T, Han L, Yu H, Wan L, Niu Y, Gong S. A longitudinally expanded Ni-based metal-organic framework with enhanced double nickel cation catalysis reaction channels for a non-enzymatic sweat glucose biosensor. J Mater Chem B 2020; 8:9094-9109. [PMID: 32929421 DOI: 10.1039/d0tb01657h] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Nickel-based metal-organic frameworks (Ni-MOFs) have attracted increasing attention in non-enzymatic glucose sensing. However, the insufficient active Ni cation sites from a stacked MOF layer, the unclear Ni catalysis mechanism, and the severe liquid alkaline electrolyte remain challenging for practical applications. In this work, the sonication-induced longitudinal-expansion of Ni-MOFs increases the active nickel ion sites, which not only enhances the current response to glucose detection, but also shows the oxidation peak evolution of nickel ions with different sonication times, revealing the mechanism of different glucose detection channels. The Ni-MOF sonicated for 60 min (60 min Ni-MOF) displays enhanced Ni(iii)/Ni(ii) and more significant Ni(iv)/Ni(iii) double nickel cation channels for catalyzing glucose into glucolactone compared to the 0 min Ni-MOF (without sonication), showing optimized glucose detection ability with a high sensitivity of 3297.10 μA mM-1 cm-2, a low detection limit of ∼8.97 μM (signal-to-noise = 3) and a wide linear response range from 10 to 400 μM from the cyclic voltammetry test as well as a high sensitivity of 3.03 μA mM-1 cm-2, a low detection limit of ∼1.16 μM (signal-to-noise = 3) and a wide linear response range from 10 to 2000 μM from the chronoamperometry test. More importantly, an all-solid-state glucose biosensor using a PVA/NaOH solid-state electrolyte and a disposable 60 min Ni-MOF working electrode is assembled for non-enzymatic sweat glucose detection.
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Affiliation(s)
- Xiaoyang Xuan
- Department of Physics, School of Science, East China University of Science and Technology, Shanghai, 200237, People's Republic of China. and Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Min Qian
- Department of Physics, School of Science, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Likun Pan
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200062, People's Republic of China.
| | - Ting Lu
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200062, People's Republic of China.
| | - Lu Han
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200062, People's Republic of China.
| | - Huangze Yu
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200062, People's Republic of China.
| | - Lijia Wan
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, 200062, People's Republic of China.
| | - Yueping Niu
- Department of Physics, School of Science, East China University of Science and Technology, Shanghai, 200237, People's Republic of China. and Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Shangqing Gong
- Department of Physics, School of Science, East China University of Science and Technology, Shanghai, 200237, People's Republic of China. and Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
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52
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Tomotoshi D, Kawasaki H. Surface and Interface Designs in Copper-Based Conductive Inks for Printed/Flexible Electronics. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1689. [PMID: 32867267 PMCID: PMC7559014 DOI: 10.3390/nano10091689] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 02/07/2023]
Abstract
Silver (Ag), gold (Au), and copper (Cu) have been utilized as metals for fabricating metal-based inks/pastes for printed/flexible electronics. Among them, Cu is the most promising candidate for metal-based inks/pastes. Cu has high intrinsic electrical/thermal conductivity, which is more cost-effective and abundant, as compared to Ag. Moreover, the migration tendency of Cu is less than that of Ag. Thus, recently, Cu-based inks/pastes have gained increasing attention as conductive inks/pastes for printed/flexible electronics. However, the disadvantages of Cu-based inks/pastes are their instability against oxidation under an ambient condition and tendency to form insulating layers of Cu oxide, such as cuprous oxide (Cu2O) and cupric oxide (CuO). The formation of the Cu oxidation causes a low conductivity in sintered Cu films and interferes with the sintering of Cu particles. In this review, we summarize the surface and interface designs for Cu-based conductive inks/pastes, in which the strategies for the oxidation resistance of Cu and low-temperature sintering are applied to produce highly conductive Cu patterns/electrodes on flexible substrates. First, we classify the Cu-based inks/pastes and briefly describe the surface oxidation behaviors of Cu. Next, we describe various surface control approaches for Cu-based inks/pastes to achieve both the oxidation resistance and low-temperature sintering to produce highly conductive Cu patterns/electrodes on flexible substrates. These surface control approaches include surface designs by polymers, small ligands, core-shell structures, and surface activation. Recently developed Cu-based mixed inks/pastes are also described, and the synergy effect in the mixed inks/pastes offers improved performances compared with the single use of each component. Finally, we offer our perspectives on Cu-based inks/pastes for future efforts.
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Affiliation(s)
| | - Hideya Kawasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita-shi, Osaka 564-8680, Japan;
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53
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Cesewski E, Johnson BN. Electrochemical biosensors for pathogen detection. Biosens Bioelectron 2020; 159:112214. [PMID: 32364936 PMCID: PMC7152911 DOI: 10.1016/j.bios.2020.112214] [Citation(s) in RCA: 358] [Impact Index Per Article: 89.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/19/2022]
Abstract
Recent advances in electrochemical biosensors for pathogen detection are reviewed. Electrochemical biosensors for pathogen detection are broadly reviewed in terms of transduction elements, biorecognition elements, electrochemical techniques, and biosensor performance. Transduction elements are discussed in terms of electrode material and form factor. Biorecognition elements for pathogen detection, including antibodies, aptamers, and imprinted polymers, are discussed in terms of availability, production, and immobilization approach. Emerging areas of electrochemical biosensor design are reviewed, including electrode modification and transducer integration. Measurement formats for pathogen detection are classified in terms of sample preparation and secondary binding steps. Applications of electrochemical biosensors for the detection of pathogens in food and water safety, medical diagnostics, environmental monitoring, and bio-threat applications are highlighted. Future directions and challenges of electrochemical biosensors for pathogen detection are discussed, including wearable and conformal biosensors, detection of plant pathogens, multiplexed detection, reusable biosensors for process monitoring applications, and low-cost, disposable biosensors.
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Affiliation(s)
- Ellen Cesewski
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA, 24061, USA; Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Blake N Johnson
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA, 24061, USA; Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA, 24061, USA; Department of Chemical Engineering, Virginia Tech, Blacksburg, VA, 24061, USA.
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54
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Liu W, Wu D. Low Temperature Adhesive Bonding-Based Fabrication of an Air-Borne Flexible Piezoelectric Micromachined Ultrasonic Transducer. SENSORS (BASEL, SWITZERLAND) 2020; 20:E3333. [PMID: 32545406 PMCID: PMC7308851 DOI: 10.3390/s20113333] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/03/2020] [Accepted: 06/09/2020] [Indexed: 11/17/2022]
Abstract
This paper presents the development of a flexible piezoelectric micromachined ultrasonic transducer (PMUT) that can conform to flat, concave, and convex surfaces and work in air. The PMUT consists of an Ag-coated polyvinylidene fluoride (PVDF) film mounted onto a laser-manipulated polymer substrate. A low temperature (<100 °C) adhesive bonding technique is adopted in the fabrication process. Finite element analysis (FEA) is implemented to confirm the capability of predicting the resonant frequency of composite diaphragms and optimizing the device. The manufactured PMUT exhibits a center frequency of 198 kHz with a wide operational bandwidth. Its acoustic performance is demonstrated by transmitting and receiving ultrasound in air on curved surface. The conclusions from this study indicate the proposed PMUT has great potential in ultrasonic and wearable devices applications.
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Affiliation(s)
| | - Dawei Wu
- State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
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55
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Kucherenko IS, Soldatkin OO, Dzyadevych SV, Soldatkin AP. Electrochemical biosensors based on multienzyme systems: Main groups, advantages and limitations - A review. Anal Chim Acta 2020; 1111:114-131. [PMID: 32312388 DOI: 10.1016/j.aca.2020.03.034] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 03/14/2020] [Accepted: 03/16/2020] [Indexed: 12/13/2022]
Abstract
In the review, the principles and main purposes of using multienzyme systems in electrochemical biosensors are analyzed. Coupling several enzymes allows an extension of the spectrum of detectable substances, an increase in the biosensor sensitivity (in some cases, by several orders of magnitude), and an improvement of the biosensor selectivity, as showed on the examples of amperometric, potentiometric, and conductometric biosensors. The biosensors based on cascade, cyclic and competitive enzyme systems are described alongside principles of function, advantages, disadvantages and practical use for real sample analyses in various application areas (food production and quality control, clinical diagnostics, environmental monitoring). The complications and restrictions regarding the development of multienzyme biosensors are evaluated. The recommendations on the reasonability of elaboration of novel multienzyme biosensors are given.
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Affiliation(s)
- I S Kucherenko
- Department of Biomolecular Electronics, Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03148, Kyiv, Ukraine.
| | - O O Soldatkin
- Department of Biomolecular Electronics, Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03148, Kyiv, Ukraine; Institute of High Technologies, Taras Shevchenko National University of Kyiv, Volodymyrska Street 64, 01003, Kyiv, Ukraine
| | - S V Dzyadevych
- Department of Biomolecular Electronics, Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03148, Kyiv, Ukraine; Institute of High Technologies, Taras Shevchenko National University of Kyiv, Volodymyrska Street 64, 01003, Kyiv, Ukraine
| | - A P Soldatkin
- Department of Biomolecular Electronics, Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03148, Kyiv, Ukraine; Institute of High Technologies, Taras Shevchenko National University of Kyiv, Volodymyrska Street 64, 01003, Kyiv, Ukraine
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56
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Sengupta P, Ghosh A, Bose N, Mukherjee S, Roy Chowdhury A, Datta P. A comparative assessment of poly(vinylidene fluoride)/conducting polymer electrospun nanofiber membranes for biomedical applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.49115] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Pavel Sengupta
- Centre for Healthcare Science and TechnologyIndian Institute of Engineering Science and Technology Howrah West Bengal India
| | - Aritri Ghosh
- Centre for Healthcare Science and TechnologyIndian Institute of Engineering Science and Technology Howrah West Bengal India
| | - Navonil Bose
- Department of PhysicsSupreme Knowledge Foundation Group of Institutions Mankundu Hooghly India
| | - Sampad Mukherjee
- Department of PhysicsIndian Institute of Engineering Science and Technology Shibpur Howrah India
| | - Amit Roy Chowdhury
- Centre for Healthcare Science and TechnologyIndian Institute of Engineering Science and Technology Howrah West Bengal India
- Department of Aerospace Engineering and Applied MechanicsIndian Institute of Engineering Science and Technology Howrah West Bengal India
| | - Pallab Datta
- Centre for Healthcare Science and TechnologyIndian Institute of Engineering Science and Technology Howrah West Bengal India
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57
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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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58
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Chandran N, Janardhanan P, Bayal M, Unniyampurath U, Pilankatta R, Nair SS. Label Free, Nontoxic Cu-GSH NCs as a Nanoplatform for Cancer Cell Imaging and Subcellular pH Monitoring Modulated by a Specific Inhibitor: Bafilomycin A1. ACS APPLIED BIO MATERIALS 2020; 3:1245-1257. [DOI: 10.1021/acsabm.9b01036] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Neeli Chandran
- Department of Physics, Central University of Kerala, Periye, Kasaragod, Kerala, India 671320
| | - Prajit Janardhanan
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Periye, Kasaragod, Kerala, India 671320
| | - Manikanta Bayal
- Department of Physics, Central University of Kerala, Periye, Kasaragod, Kerala, India 671320
| | | | - Rajendra Pilankatta
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Periye, Kasaragod, Kerala, India 671320
| | - Swapna S. Nair
- Department of Physics, Central University of Kerala, Periye, Kasaragod, Kerala, India 671320
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59
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Recent Progress of Miniature MEMS Pressure Sensors. MICROMACHINES 2020; 11:mi11010056. [PMID: 31906297 PMCID: PMC7020044 DOI: 10.3390/mi11010056] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 12/23/2019] [Accepted: 12/27/2019] [Indexed: 11/16/2022]
Abstract
Miniature Microelectromechanical Systems (MEMS) pressure sensors possess various merits, such as low power consumption, being lightweight, having a small volume, accurate measurement in a space-limited region, low cost, little influence on the objects being detected. Accurate blood pressure has been frequently required for medical diagnosis. Miniature pressure sensors could directly measure the blood pressure and fluctuation in blood vessels with an inner diameter from 200 to 1000 m. Glaucoma is a group of eye diseases usually resulting from abnormal intraocular pressure. The implantable pressure sensor for real-time inspection would keep the disease from worsening; meanwhile, these small devices could alleviate the discomfort of patients. In addition to medical applications, miniature pressure sensors have also been used in the aerospace, industrial, and consumer electronics fields. To clearly illustrate the "miniature size", this paper focuses on miniature pressure sensors with an overall size of less than 2 mm × 2 mm or a pressure sensitive diaphragm area of less than 1 mm × 1 mm. In this paper, firstly, the working principles of several types of pressure sensors are briefly introduced. Secondly, the miniaturization with the development of the semiconductor processing technology is discussed. Thirdly, the sizes, performances, manufacturing processes, structures, and materials of small pressure sensors used in the different fields are explained in detail, especially in the medical field. Fourthly, problems encountered in the miniaturization of miniature pressure sensors are analyzed and possible solutions proposed. Finally, the probable development directions of miniature pressure sensors in the future are discussed.
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60
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Chen C, Guo Y, Chen P, Peng H. Recent advances of tissue-interfaced chemical biosensors. J Mater Chem B 2020; 8:3371-3381. [DOI: 10.1039/c9tb02476j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This review discusses recent advances of tissue interfaced chemical biosensors, highlights current challenges and gives an outlook on future possibilities.
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Affiliation(s)
- Chuanrui Chen
- Laboratory of Advanced Materials
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai 200438
- China
| | - Yue Guo
- Laboratory of Advanced Materials
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai 200438
- China
| | - Peining Chen
- Laboratory of Advanced Materials
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai 200438
- China
| | - Huisheng Peng
- Laboratory of Advanced Materials
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai 200438
- China
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61
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Kumar S, Pandey CM, Hatamie A, Simchi A, Willander M, Malhotra BD. Nanomaterial-Modified Conducting Paper: Fabrication, Properties, and Emerging Biomedical Applications. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1900041. [PMID: 31832235 PMCID: PMC6888762 DOI: 10.1002/gch2.201900041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 08/09/2019] [Indexed: 05/02/2023]
Abstract
The emerging demand for wearable, lightweight portable devices has led to the development of new materials for flexible electronics using non-rigid substrates. In this context, nanomaterial-modified conducting paper (CP) represents a new concept that utilizes paper as a functional part in various devices. Paper has drawn significant interest among the research community because it is ubiquitous, cheap, and environmentally friendly. This review provides information on the basic characteristics of paper and its functionalization with nanomaterials, methodology for device fabrication, and their various applications. It also highlights some of the exciting applications of CP in point-of-care diagnostics for biomedical applications. Furthermore, recent challenges and opportunities in paper-based devices are summarized.
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Affiliation(s)
- Saurabh Kumar
- Centre for Nano Science and Engineering (CeNSE)Indian Institute of ScienceBengaluru560012India
- Department of BiotechnologyDelhi Technological UniversityMain Bawana RoadDelhi110042India
| | - Chandra Mouli Pandey
- Department of BiotechnologyDelhi Technological UniversityMain Bawana RoadDelhi110042India
- Department of Applied ChemistryDelhi Technological UniversityMain Bawana RoadDelhi110042India
| | - Amir Hatamie
- Department of Science & TechnologyCampus NorrkopingLinkoping UniversitySE 60174NorrkopingSweden
- Nanostructured & Advanced Materials LabDepartment of Materials Science and EngineeringSharif University of TechnologyTehran1458889694Iran
| | - Abdolreza Simchi
- Nanostructured & Advanced Materials LabDepartment of Materials Science and EngineeringSharif University of TechnologyTehran1458889694Iran
| | - Magnus Willander
- Department of Science & TechnologyCampus NorrkopingLinkoping UniversitySE 60174NorrkopingSweden
| | - Bansi D. Malhotra
- Department of BiotechnologyDelhi Technological UniversityMain Bawana RoadDelhi110042India
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62
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Performance of Flexible Chemoresistive Gas Sensors after Having Undergone Automated Bending Tests. SENSORS 2019; 19:s19235190. [PMID: 31783505 PMCID: PMC6928898 DOI: 10.3390/s19235190] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/13/2019] [Accepted: 11/25/2019] [Indexed: 11/22/2022]
Abstract
Many sensors are developed over flexible substrates to be used as wearables, which does not guarantee that they will actually withstand being bent. This work evaluates the gas sensing performance of metal oxide devices of three different types, before and after having undergone automated, repetitive bending tests. These tests were aimed at demonstrating that the fabricated sensors were actually flexible, which cannot be taken for granted beforehand. The active layer in these sensors consisted of WO3 nanowires (NWs) grown directly over a Kapton foil by means of the aerosol-assisted chemical vapor deposition. Their response to different H2 concentrations was measured at first. Then, they were cyclically bent, and finally, their response to H2 was measured again. Sensors based on pristine WO3-NWs over Ag electrodes and on Pd-decorated NWs over Au electrodes maintained their performance after having been bent. Ag electrodes covered with Pd-decorated NWs became fragile and lost their usefulness. To summarize, two different types of truly flexible metal oxide gas sensor were fabricated, whereas a third one was not flexible, despite being grown over a flexible substrate following the same method. Finally, we recommend that one standard bending test procedure should be established to clearly determine the flexibility of a sensor considering its intended application.
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63
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Hossain SMZ, Mansour N. Biosensors for on-line water quality monitoring – a review. ARAB JOURNAL OF BASIC AND APPLIED SCIENCES 2019. [DOI: 10.1080/25765299.2019.1691434] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- S. M. Zakir Hossain
- Department of Chemical Engineering, University of Bahrain, Isa Town, Kingdom of Bahrain
| | - Noureddine Mansour
- Department of Chemical Engineering, University of Bahrain, Isa Town, Kingdom of Bahrain
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64
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Xie L, Chen P, Chen S, Yu K, Sun H. Low-Cost and Highly Sensitive Wearable Sensor Based on Napkin for Health Monitoring. SENSORS 2019; 19:s19153427. [PMID: 31387246 PMCID: PMC6695873 DOI: 10.3390/s19153427] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 07/21/2019] [Accepted: 08/03/2019] [Indexed: 01/15/2023]
Abstract
The development of sensors with high sensitivity, good flexibility, low cost, and capability of detecting multiple inputs is of great significance for wearable electronics. Herein, we report a napkin-based wearable capacitive sensor fabricated by a novel, low-cost, and facile strategy. The capacitive sensor is composed of two pieces of electrode plates manufactured by spontaneous assembly of silver nanowires (NWs) on a polydimethylsiloxane (PDMS)-patterned napkin. The sensor possesses high sensitivity (>7.492 kPa−1), low cost, and capability for simultaneous detection of multiple signals. We demonstrate that the capacitive sensor can be applied to identify a variety of human physiological signals, including finger motions, eye blinking, and minute wrist pulse. More interestingly, the capacitive sensor comfortably attached to the temple can simultaneously monitor eye blinking and blood pulse. The demonstrated sensor shows great prospects in the applications of human–machine interface, prosthetics, home-based healthcare, and flexible touch panels.
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Affiliation(s)
- Liping Xie
- College of Medicine and Biological Information Engineering, Engineering Research Center of Medical Imaging and Intelligent Analysis, Ministry of Education, Northeastern University, Shenyang 110169, China.
| | - Peng Chen
- School of Chemical and Biomedical Engineering, Innovative Centre for Flexible Devices, Nanyang Technological University, Singapore 637459, Singapore
| | - Shuo Chen
- College of Medicine and Biological Information Engineering, Engineering Research Center of Medical Imaging and Intelligent Analysis, Ministry of Education, Northeastern University, Shenyang 110169, China
| | - Kun Yu
- College of Medicine and Biological Information Engineering, Engineering Research Center of Medical Imaging and Intelligent Analysis, Ministry of Education, Northeastern University, Shenyang 110169, China
| | - Hongbin Sun
- Department of Chemistry, Northeastern University, Shenyang 110819, China
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65
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Li Z, Zhang W, Xing F. Graphene Optical Biosensors. Int J Mol Sci 2019; 20:E2461. [PMID: 31109057 PMCID: PMC6567174 DOI: 10.3390/ijms20102461] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/08/2019] [Accepted: 05/15/2019] [Indexed: 11/20/2022] Open
Abstract
Graphene shows great potential in biosensing owing to its extraordinary optical, electrical and physical properties. In particular, graphene possesses unique optical properties, such as broadband and tunable absorption, and strong polarization-dependent effects. This lays a foundation for building graphene-based optical sensors. This paper selectively reviews recent advances in graphene-based optical sensors and biosensors. Graphene-based optical biosensors can be used for single cell detection, cell line, and anticancer drug detection, protein and antigen-antibody detection. These new high-performance graphene-based optical sensors are able to detect surface structural changes and biomolecular interactions. In all these cases, the optical biosensors perform well with ultra-fast detection, high sensitivities, unmarked, and are able to respond in real time. The future of the field of graphene applications is also discussed.
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Affiliation(s)
- Zongwen Li
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255049, China.
| | - Wenfei Zhang
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255049, China.
| | - Fei Xing
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255049, China.
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66
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Meng L, Turner APF, Mak WC. Soft and flexible material-based affinity sensors. Biotechnol Adv 2019; 39:107398. [PMID: 31071431 DOI: 10.1016/j.biotechadv.2019.05.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 05/01/2019] [Accepted: 05/04/2019] [Indexed: 01/11/2023]
Abstract
Recent advances in biosensors and point-of-care (PoC) devices are poised to change and expand the delivery of diagnostics from conventional lateral-flow assays and test strips that dominate the market currently, to newly emerging wearable and implantable devices that can provide continuous monitoring. Soft and flexible materials are playing a key role in propelling these trends towards real-time and remote health monitoring. Affinity biosensors have the capability to provide for diagnosis and monitoring of cancerous, cardiovascular, infectious and genetic diseases by the detection of biomarkers using affinity interactions. This review tracks the evolution of affinity sensors from conventional lateral-flow test strips to wearable/implantable devices enabled by soft and flexible materials. Initially, we highlight conventional affinity sensors exploiting membrane and paper materials which have been so successfully applied in point-of-care tests, such as lateral-flow immunoassay strips and emerging microfluidic paper-based devices. We then turn our attention to the multifarious polymer designs that provide both the base materials for sensor designs, such as PDMS, and more advanced functionalised materials that are capable of both recognition and transduction, such as conducting and molecularly imprinted polymers. The subsequent content discusses wearable soft and flexible material-based affinity sensors, classified as flexible and skin-mountable, textile materials-based and contact lens-based affinity sensors. In the final sections, we explore the possibilities for implantable/injectable soft and flexible material-based affinity sensors, including hydrogels, microencapsulated sensors and optical fibers. This area is truly a work in progress and we trust that this review will help pull together the many technological streams that are contributing to the field.
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Affiliation(s)
- Lingyin Meng
- Biosensors and Bioelectronics Centre, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden
| | | | - Wing Cheung Mak
- Biosensors and Bioelectronics Centre, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden.
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Xu M, Yadavalli VK. Flexible Biosensors for the Impedimetric Detection of Protein Targets Using Silk-Conductive Polymer Biocomposites. ACS Sens 2019; 4:1040-1047. [PMID: 30957494 DOI: 10.1021/acssensors.9b00230] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
To expand the applications of flexible biosensors in point-of-care healthcare applications beyond monitoring of biophysical parameters, it is important to devise strategies for the detection of various proteins and biomarkers. Here, we demonstrate a flexible, fully organic, biodegradable, label-free impedimetric biosensor for the critical biomarker, vascular endothelial growth factor (VEGF). This biosensor was constructed by photolithographically patterning a conducting ink consisting of a photoreactive silk sericin coupled with a conducting polymer. These functional electrodes are printed on flexible fibroin substrates that are controllably thick and can be free-standing, or conform to soft surfaces. Detection was accomplished via the antibody to VEGF which was immobilized within the conducting matrix. The results indicated that the developed flexible biosensor was highly sensitive and selective to the target protein, even in challenging biofluids such as human serum. The biosensors themselves are biocompatible and degradable. Through this work, the developed flexible biosensor based on a simple and label-free strategy can find practical applications in the monitoring of wound healing or early disease diagnosis.
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Affiliation(s)
- Meng Xu
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, Virginia 23284, United States
| | - Vamsi K. Yadavalli
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, Virginia 23284, United States
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Promphet N, Rattanawaleedirojn P, Siralertmukul K, Soatthiyanon N, Potiyaraj P, Thanawattano C, Hinestroza JP, Rodthongkum N. Non-invasive textile based colorimetric sensor for the simultaneous detection of sweat pH and lactate. Talanta 2019; 192:424-430. [PMID: 30348413 DOI: 10.1016/j.snb.2020.128549] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 09/21/2018] [Accepted: 09/23/2018] [Indexed: 05/18/2023]
Abstract
A non-invasive textile-based colorimetric sensor for the simultaneous detection of sweat pH and lactate was created by depositing of three different layers onto a cotton fabric: 1.) chitosan, 2.) sodium carboxymethyl cellulose, and 3.) indicator dye or lactate assay. This sensor was characterized using field emission scanning electron microscopy and fourier transform infrared spectroscopy. Then, this sensor was used to measure pH and lactate concentration using the same sweat sample. The sensing element for sweat pH was composed of a mixture of methyl orange and bromocresol green while a lactate enzymatic assay was chosen for the lactate sensor. The pH indicator gradually shifted from red to blue as the pH increased, whereas the purple color intensity increased with the concentration of lactate in the sweat. By comparing these colors with a standard calibration, this platform can be used to estimate the sweat pH (1-14) and the lactate level (0-25 mM). Fading of the colors of this sensor was prevented by using cetyltrimethylammonium bromide (CTAB). The flexibility of this textile based sensor allows it to be incorporated into sport apparels and accessories hence potentially enabling real-time and continuous monitoring of sweat pH and lactate. This non-invasive sensing platform might open a new avenue for personal health monitoring and medical diagnosis as well as for determining of the physiological conditions of endurance athletes.
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Affiliation(s)
- Nadtinan Promphet
- Nanoscience and Technology Interdisciplinary Program, Graduate School, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Pranee Rattanawaleedirojn
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Krisana Siralertmukul
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Niphaphun Soatthiyanon
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Pranut Potiyaraj
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Chusak Thanawattano
- National Electronics and Computer Technology Center (NECTEC), Pathumthani 12120, Thailand
| | - Juan P Hinestroza
- Department of Fiber Science, College of Human Ecology, Cornell University, Ithaca, NY 14850, United States
| | - Nadnudda Rodthongkum
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Road, Pathumwan, Bangkok 10330, Thailand.
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