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Yang C, Wang Z, Xiao K, Ushakov N, Kumar S, Li X, Min R. Portable optical fiber biosensors integrated with smartphone: technologies, applications, and challenges [Invited]. BIOMEDICAL OPTICS EXPRESS 2024; 15:1630-1650. [PMID: 38495719 PMCID: PMC10942678 DOI: 10.1364/boe.517534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/04/2024] [Accepted: 02/04/2024] [Indexed: 03/19/2024]
Abstract
The increasing demand for individualized health monitoring and diagnostics has prompted considerable research into the integration of portable optical fiber biosensors integrated with smartphones. By capitalizing on the benefits offered by optical fibers, these biosensors enable qualitative and quantitative biosensing across a wide range of applications. The integration of these sensors with smartphones, which possess advanced computational power and versatile sensing capabilities, addresses the increasing need for portable and rapid sensing solutions. This extensive evaluation thoroughly examines the domain of optical fiber biosensors in conjunction with smartphones, including hardware complexities, sensing approaches, and integration methods. Additionally, it explores a wide range of applications, including physiological and chemical biosensing. Furthermore, the review provides an analysis of the challenges that have been identified in this rapidly evolving area of research and concludes with relevant suggestions for the progression of the field.
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Affiliation(s)
- Chengwei Yang
- Center for Cognition and Neuroergonomics, State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Zhuhai 519087, China
| | - Zhuo Wang
- Center for Cognition and Neuroergonomics, State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Zhuhai 519087, China
| | - Kun Xiao
- Faculty of Arts and Sciences, Beijing Normal University, Zhuhai 519087, China
| | - Nikolai Ushakov
- Institute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
| | - Santosh Kumar
- Department of Electronics and Communication Engineering, K L Deemed to be University, Guntur, Andhra Pradesh 522302, India
| | - Xiaoli Li
- School of Automation Science and Engineering, South China University of Technology, Guangzhou 510641, China
- Guangdong Artificial Intelligence and Digital Economy Laboratory (Guangzhou), Guangzhou 510335, China
| | - Rui Min
- Center for Cognition and Neuroergonomics, State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Zhuhai 519087, China
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2
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Xu P, Liu Y, Noman AA, Cheng X, Li Y, Yu C. Rapid and sensitive detection of aqueous ammonia harnessing nanocomposite functionalized tilted fiber Bragg grating. OPTICS EXPRESS 2023; 31:27095-27105. [PMID: 37710791 DOI: 10.1364/oe.490224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 07/04/2023] [Indexed: 09/16/2023]
Abstract
A high sensitive aqueous ammonia sensor based on tilted fiber Bragg grating (TFBG) had been reported. The sensors were fabricated by a 10 ° TFBG coated by a membrane receptor named as Polyaniline/Graphene oxide on the surface of the fiber. The correlative concentrations of aqueous ammonia were demodulated by global monitoring of the envelope area of cladding modes in the transmitted spectrum of the TFBG. Tests have shown that the proposed sensor can provide a linear and rapid response of aqueous ammonia within 22 seconds, in a concentration range from 1-12 ppm. Moreover, the limit of detection can even reach 0.08 ppm, through the theoretical analysis of our experimental results. The proposed sensor has good performance, is easy to manufacture and of small size, making it a good choice for real-time, in-situ, label-free detection of aqueous ammonia in the future.
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3
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Razzaghi M, Homaei A, Vianello F, Azad T, Sharma T, Nadda AK, Stevanato R, Bilal M, Iqbal HMN. Industrial applications of immobilized nano-biocatalysts. Bioprocess Biosyst Eng 2022; 45:237-256. [PMID: 34596787 DOI: 10.1007/s00449-021-02647-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 09/24/2021] [Indexed: 02/05/2023]
Abstract
Immobilized enzyme-based catalytic constructs could greatly improve various industrial processes due to their extraordinary catalytic activity and reaction specificity. In recent decades, nano-enzymes, defined as enzyme immobilized on nanomaterials, gained popularity for the enzymes' improved stability, reusability, and ease of separation from the biocatalytic process. Thus, enzymes can be strategically incorporated into nanostructured materials to engineer nano-enzymes, such as nanoporous particles, nanofibers, nanoflowers, nanogels, nanomembranes, metal-organic frameworks, multi-walled or single-walled carbon nanotubes, and nanoparticles with tuned shape and size. Surface-area-to-volume ratio, pore-volume, chemical compositions, electrical charge or conductivity of nanomaterials, protein charge, hydrophobicity, and amino acid composition on protein surface play fundamental roles in the nano-enzyme preparation and catalytic properties. With proper understanding, the optimization of the above-mentioned factors will lead to favorable micro-environments for biocatalysts of industrial relevance. Thus, the application of nano-enzymes promise to further strengthen the advances in catalysis, biotransformation, biosensing, and biomarker discovery. Herein, this review article spotlights recent progress in nano-enzyme development and their possible implementation in different areas, including biomedicine, biosensors, bioremediation of industrial pollutants, biofuel production, textile, leather, detergent, food industries and antifouling.
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Affiliation(s)
- Mozhgan Razzaghi
- Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, P.O. Box 3995, Bandar Abbas, Iran
| | - Ahmad Homaei
- Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, P.O. Box 3995, Bandar Abbas, Iran.
| | - Fabio Vianello
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, PD, Italy
| | - Taha Azad
- Ottawa Hospital Research Institute, Ottawa, ON, K1H 8L6, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Tanvi Sharma
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Solan, Waknaghat, India
| | - Ashok Kumar Nadda
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Solan, Waknaghat, India
| | - Roberto Stevanato
- Department of Molecular Sciences and Nanosystems, University Ca' Foscari of Venice, Venice, Italy
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Hafiz M N Iqbal
- School of Engineering and Sciences, Tecnologico de Monterrey, 64849, Monterrey, Mexico
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Huynh GT, Kesarwani V, Walker JA, Frith JE, Meagher L, Corrie SR. Review: Nanomaterials for Reactive Oxygen Species Detection and Monitoring in Biological Environments. Front Chem 2021; 9:728717. [PMID: 34568279 PMCID: PMC8461210 DOI: 10.3389/fchem.2021.728717] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/25/2021] [Indexed: 12/19/2022] Open
Abstract
Reactive oxygen species (ROS) and dissolved oxygen play key roles across many biological processes, and fluorescent stains and dyes are the primary tools used to quantify these species in vitro. However, spatio-temporal monitoring of ROS and dissolved oxygen in biological systems are challenging due to issues including poor photostability, lack of reversibility, and rapid off-site diffusion. In particular, ROS monitoring is hindered by the short lifetime of ROS molecules and their low abundance. The combination of nanomaterials and fluorescent detection has led to new opportunities for development of imaging probes, sensors, and theranostic products, because the scaffolds lead to improved optical properties, tuneable interactions with cells and media, and ratiometric sensing robust to environmental drift. In this review, we aim to critically assess and highlight recent development in nanosensors and nanomaterials used for the detection of oxygen and ROS in biological systems, and their future potential use as diagnosis tools.
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Affiliation(s)
- Gabriel T. Huynh
- Department of Chemical Engineering, Monash University, Clayton, VIC, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Node, Clayton, VIC, Australia
| | - Vidhishri Kesarwani
- Department of Chemical Engineering, Monash University, Clayton, VIC, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Node, Clayton, VIC, Australia
| | - Julia A. Walker
- Department of Chemical Engineering, Monash University, Clayton, VIC, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Node, Clayton, VIC, Australia
| | - Jessica E. Frith
- Monash Institute of Medical Engineering, Monash University, Clayton, VIC, Australia
- Department of Material Science and Engineering, Monash University, Clayton, VIC, Australia
- ARC Training Centre for Cell and Tissue Engineering Technologies, Monash University, Clayton, VIC, Australia
| | - Laurence Meagher
- Department of Material Science and Engineering, Monash University, Clayton, VIC, Australia
- ARC Training Centre for Cell and Tissue Engineering Technologies, Monash University, Clayton, VIC, Australia
| | - Simon R. Corrie
- Department of Chemical Engineering, Monash University, Clayton, VIC, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Node, Clayton, VIC, Australia
- ARC Training Centre for Cell and Tissue Engineering Technologies, Monash University, Clayton, VIC, Australia
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5
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Ravindran N, Kumar S, M Y, S R, C A M, Thirunavookarasu S N, C K S. Recent advances in Surface Plasmon Resonance (SPR) biosensors for food analysis: a review. Crit Rev Food Sci Nutr 2021; 63:1055-1077. [PMID: 34328048 DOI: 10.1080/10408398.2021.1958745] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Food safety is the prime area of concern that builds trust. With the prevailing advancements, it has become facile to ensure safety in almost all aspects. Technology has grown from tedious lab techniques to modern chromatographic techniques and immunoassays, progressed with more precise and rapid sensing through the advent of Biosensors. Biosensors provide an automated technology by presenting superfast, nondestructive and cost-effective detection in food analysis. SPR biosensor is an optical biosensor known for its versatility and has wider applications in food testing and analysis. It has an optical system for excitation and interrogation of surface plasmons, and a biomolecular recognition element to detect and seize the target analyte present in a sample. The optical signal detects the binding analyte, on the recognition element, which results in a change in refractive index at the surface and modifies the surface plasmons' propagation constant. SPR aids in label-free detection of various components such as adulterants, antibiotics, biomolecules, genetically modified foods, pesticides, insecticides, herbicides, microorganisms and microbial toxins in food and assures safety. The distinct advancements of SPR in food analysis have been found and discussed. The review also provides knowledge on the advantages and the key challenges encountered by SPR.
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Affiliation(s)
- Nevetha Ravindran
- Department of Food Engineering, Indian Institute of Food Processing Technology, Thanjavur, India
| | - Sandhya Kumar
- Department of Food Engineering, Indian Institute of Food Processing Technology, Thanjavur, India
| | - Yashini M
- Department of Food Engineering, Indian Institute of Food Processing Technology, Thanjavur, India
| | - Rajeshwari S
- Department of Food Engineering, Indian Institute of Food Processing Technology, Thanjavur, India
| | - Mamathi C A
- Department of Food Engineering, Indian Institute of Food Processing Technology, Thanjavur, India
| | | | - Sunil C K
- Department of Food Engineering, Indian Institute of Food Processing Technology, Thanjavur, India
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6
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Das S, Agarwal DK, Mandal B, Rao VR, Kundu T. Detection of the Chilli Leaf Curl Virus Using an Attenuated Total Reflection-Mediated Localized Surface-Plasmon-Resonance-Based Optical Platform. ACS OMEGA 2021; 6:17413-17423. [PMID: 34278127 PMCID: PMC8280655 DOI: 10.1021/acsomega.1c01702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/09/2021] [Indexed: 05/16/2023]
Abstract
The development of a nanoparticle-based optical platform has been presented as a biosensor for detecting target-specific plant virus DNA. The binding dynamics of gold nanoparticles has been studied on the amine-functionalized surface by the attenuated total reflection (ATR)-based evanescent wave absorption method monitoring the localized surface plasmon resonance (LSPR). The developed surface was established as a refractive index sensor by monitoring the LSPR absorption peak of gold nanoparticles. This nanoparticle-immobilized surface was explored to establish as a biosensing platform with target-specific immunoglobulin (IgG) antibody-antigen interaction. The IgG concentration-dependent variation of absorbance was correlated with the refractive index change. After successfully establishing this ATR configuration as an LSPR-based biosensor, the single-stranded DNA of the chilli leaf curl virus was detected using its complementary DNA sequence as a receptor. The limit of detection of this sensor was determined to be 1.0 μg/mL for this target viral DNA. This ATR absorption technique has enormous potential as an LSPR based nano-biosensor for the detection of other begomoviruses.
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Affiliation(s)
- Sonatan Das
- Centre
for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Dilip Kumar Agarwal
- Department
of Physics, Indian Institute of Technology
Bombay, Mumbai 400076, India
| | - Bikash Mandal
- Advanced
Centre for Plant Virology, Indian Agricultural
Research Institute, Pusa, New Delhi, Delhi 110012, India
| | - V. Ramgopal Rao
- Centre
for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai 400076, India
- Department
of Electrical Engineering, Indian Institute
of Technology Bombay, Mumbai 400076, India
| | - Tapanendu Kundu
- Centre
for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai 400076, India
- Department
of Physics, Indian Institute of Technology
Bombay, Mumbai 400076, India
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7
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A nano-sensing composite platform combining magnetic and emissive features: Fabrication and performance. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Koštejnová L, Ondráček J, Majerová P, Koštejn M, Kuncová G, Trögl J. Cultivation of Saccharomyces cerevisiae with Feedback Regulation of Glucose Concentration Controlled by Optical Fiber Glucose Sensor. SENSORS 2021; 21:s21020565. [PMID: 33466906 PMCID: PMC7830682 DOI: 10.3390/s21020565] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 11/16/2022]
Abstract
Glucose belongs among the most important substances in both physiology and industry. Current food and biotechnology praxis emphasizes its on-line continuous monitoring and regulation. These provoke increasing demand for systems, which enable fast detection and regulation of deviations from desired glucose concentration. We demonstrated control of glucose concentration by feedback regulation equipped with in situ optical fiber glucose sensor. The sensitive layer of the sensor comprises oxygen-dependent ruthenium complex and preimmobilized glucose oxidase both entrapped in organic–inorganic polymer ORMOCER®. The sensor was placed in the laboratory bioreactor (volume 5 L) to demonstrate both regulations: the control of low levels of glucose concentrations (0.4 and 0.1 mM) and maintenance of the glucose concentration (between 2 and 3.5 mM) during stationary phase of cultivation of Saccharomyces cerevisiae. Response times did not exceed 6 min (average 4 min) with average deviation of 4%. Due to these regulation characteristics together with durable and long-lasting (≥2 month) sensitive layer, this feedback regulation system might find applications in various biotechnological processes such as production of low glucose content beverages.
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Affiliation(s)
- Lucie Koštejnová
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135/1, 16502 Prague, Czech Republic; (J.O.); (P.M.); (M.K.); (G.K.)
- Correspondence: ; Tel.: +420-220-390-303
| | - Jakub Ondráček
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135/1, 16502 Prague, Czech Republic; (J.O.); (P.M.); (M.K.); (G.K.)
| | - Petra Majerová
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135/1, 16502 Prague, Czech Republic; (J.O.); (P.M.); (M.K.); (G.K.)
| | - Martin Koštejn
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135/1, 16502 Prague, Czech Republic; (J.O.); (P.M.); (M.K.); (G.K.)
| | - Gabriela Kuncová
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135/1, 16502 Prague, Czech Republic; (J.O.); (P.M.); (M.K.); (G.K.)
- Faculty of Environment, Jan Evangelista Purkyně University in Ústí nad Labem, Pasteurova 3632/15, 40096 Ústí nad Labem, Czech Republic;
| | - Josef Trögl
- Faculty of Environment, Jan Evangelista Purkyně University in Ústí nad Labem, Pasteurova 3632/15, 40096 Ústí nad Labem, Czech Republic;
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9
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Noman AA, Dash JN, Cheng X, Leong CY, Tam HY, Yu C. Hydrogel based Fabry-Pérot cavity for a pH sensor. OPTICS EXPRESS 2020; 28:39640-39648. [PMID: 33379509 DOI: 10.1364/oe.414636] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 12/07/2020] [Indexed: 06/12/2023]
Abstract
A simple, reliable, and quick reactive Fabry-Pérot (FP) structure-based fiber optic pH sensor is presented. The pH-sensitive hydrogel and single-mode fiber (SMF) are placed inside a fused silica capillary to form the FP cavity. The gel thickness is characterized by the spin coating method with respect to different spin speeds. The proposed sensor shows a pH sensitivity of 0.30 nm/pH along with a fast response time of 15 s to 20 s for different pH solvents in the acidic range. Also, the temperature sensitivity of the FPI sensor is found to be -0.56 nm/°C.
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10
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Prommapan P, Brljak N, Lowry TW, Van Winkle D, Lenhert S. Aptamer Functionalized Lipid Multilayer Gratings for Label-Free Analyte Detection. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:nano10122433. [PMID: 33291389 PMCID: PMC7762078 DOI: 10.3390/nano10122433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/24/2020] [Accepted: 11/27/2020] [Indexed: 06/12/2023]
Abstract
Lipid multilayer gratings are promising optical biosensor elements that are capable of transducing analyte binding events into changes in an optical signal. Unlike solid state transducers, reagents related to molecular recognition and signal amplification can be incorporated into the lipid grating ink volume prior to fabrication. Here we describe a strategy for functionalizing lipid multilayer gratings with a DNA aptamer for the protein thrombin that allows label-free analyte detection. A double cholesterol-tagged, double-stranded DNA linker was used to attach the aptamer to the lipid gratings. This approach was found to be sufficient for binding fluorescently labeled thrombin to lipid multilayers with micrometer-scale thickness. In order to achieve label-free detection with the sub-100 nm-thick lipid multilayer grating lines, the binding affinity was improved by varying the lipid composition. A colorimetric image analysis of the light diffracted from the gratings using a color camera was then used to identify the grating nanostructures that lead to an optimal signal. Lipid composition and multilayer thickness were found to be critical parameters for the signal transduction from the aptamer functionalized lipid multilayer gratings.
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Affiliation(s)
- Plengchart Prommapan
- Department of Physics, Florida State University, Tallahassee, FL 32306, USA; (P.P.); (T.W.L.); (D.V.W.)
| | - Nermina Brljak
- Department of Chemistry, Florida State University, Tallahassee, FL 32306, USA;
| | - Troy W. Lowry
- Department of Physics, Florida State University, Tallahassee, FL 32306, USA; (P.P.); (T.W.L.); (D.V.W.)
- Department of Biological Science and Integrative Nanoscience Institute, Florida State University, 77 Chieftan Way, Tallahassee, FL 32306, USA
| | - David Van Winkle
- Department of Physics, Florida State University, Tallahassee, FL 32306, USA; (P.P.); (T.W.L.); (D.V.W.)
| | - Steven Lenhert
- Department of Biological Science and Integrative Nanoscience Institute, Florida State University, 77 Chieftan Way, Tallahassee, FL 32306, USA
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Lotfi Z, Gholivand MB, Shamsipur M. Non-enzymatic glucose sensor based on a g-C 3N 4/NiO/CuO nanocomposite. Anal Biochem 2020; 616:114062. [PMID: 33285122 DOI: 10.1016/j.ab.2020.114062] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 11/30/2020] [Accepted: 12/02/2020] [Indexed: 01/10/2023]
Abstract
In this paper, a non-enzymatic glucose sensor was developed based on a g-C3N4/NiO/CuO nanocomposite immobilized on a glassy carbon electrode (GCE). Field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and Brunauer-Emmett-Teller (BET) were utilized for the characterization of the synthesized g-C3N4/NiO/CuO nanocomposite. The electrocatalytic activity of the nanocomposite was investigated by cyclic voltammetry, and the amperometric technique was applied for monitoring glucose. The g-C3N4/NiO/CuO/GCE exhibited better electrocatalytic performance than g-C3N4/GCE, g-C3N4/CuO/GCE and g-C3N4/NiO/GCE. Under optimized conditions, the proposed sensor offered a linearity ranging from 0.4 μM to 8.5 mM with a detection limit of 0.1 μM and a sensitivity of 362.12 μA mM-1 cm-2. The constructed sensor displayed favorable reproducibility, outstanding selectivity, and long-term performance. These results reveal that the sensor is a promising candidate for blood glucose sensing.
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Affiliation(s)
- Z Lotfi
- Department of Analytical Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
| | - M B Gholivand
- Department of Analytical Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran.
| | - M Shamsipur
- Department of Analytical Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
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12
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Islam MR, Hossain MA, Talha KMA, Munia RK. A novel hollow core photonic sensor for liquid analyte detection in the terahertz spectrum: design and analysis. OPTICAL AND QUANTUM ELECTRONICS 2020; 52:415. [DOI: 10.1007/s11082-020-02532-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 09/02/2020] [Indexed: 09/01/2023]
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13
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A Low-Cost High-Temperature Sensor Based on Long-Period Fiber/Microfiber Gratings by Local Fictive Temperature Modification. J CHEM-NY 2020. [DOI: 10.1155/2020/9076874] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A high temperature-sensitive long-period fiber grating (LPFG) sensor fabricated by the local fictive temperature modification is proposed and demonstrated. High-frequency CO2 laser pulses scan standard single-mode fiber (SMF), and the modification zones extended to the core of SMF. Experimental results demonstrate that the LPFG temperature sensors with 600 μm grating period and 32 period numbers offer the average sensitivity of 0.084 nm/C in the temperature range of room temperature (RM) to 875°C. The LPFGs fabricated here show exponential change in terms of the spectral wavelength shift versus changes in temperature. In addition, the maximum temperature sensitivity of 0.37 nm/C is achieved by employing long-period microfiber grating (LPMFG), fabricated by the microheater brushing technique and the local fictive temperature modification. LPMFG sensor exhibits better temperature characteristics due to a thinner diameter.
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14
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Masson JF. Portable and field-deployed surface plasmon resonance and plasmonic sensors. Analyst 2020; 145:3776-3800. [PMID: 32374303 DOI: 10.1039/d0an00316f] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Plasmonic sensors are ideally suited for the design of small, integrated, and portable devices that can be employed in situ for the detection of analytes relevant to environmental sciences, clinical diagnostics, infectious diseases, food, and industrial applications. To successfully deploy plasmonic sensors, scaled-down analytical devices based on surface plasmon resonance (SPR) and localized surface plasmon resonance (LSPR) must integrate optics, plasmonic materials, surface chemistry, fluidics, detectors and data processing in a functional instrument with a small footprint. The field has significantly progressed from the implementation of the various components in specifically designed prism-based instruments to the use of nanomaterials, optical fibers and smartphones to yield increasingly portable devices, which have been shown for a number of applications in the laboratory and deployed on site for environmental, biomedical/clinical, and food applications. A roadmap to deploy plasmonic sensors is provided by reviewing the current successes and by laying out the directions the field is currently taking to increase the use of field-deployed plasmonic sensors at the point-of-care, in the environment and in industries.
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Affiliation(s)
- Jean-Francois Masson
- Departement de chimie, Centre Québécois sur les Matériaux Fonctionnels (CQMF) and Regroupement Québécois sur les Matériaux de Pointe (RQMP), Université de Montréal, CP 6128 Succ. Centre-Ville, Montreal, QC, CanadaH3C 3J7.
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15
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Bridou L, Nielsen LG, Sørensen TJ. Using europium(III) complex of 1,4,7,10-tetraazacyclododecane-1,4,7-triacedic acid Eu.DO3A as a luminescent sensor for bicarbonate. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2019.11.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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16
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Hong T, Culp JT, Kim KJ, Devkota J, Sun C, Ohodnicki PR. State-of-the-art of methane sensing materials: A review and perspectives. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115820] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Bener M, Şen FB, Apak R. Novel pararosaniline based optical sensor for the determination of sulfite in food extracts. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 226:117643. [PMID: 31627056 DOI: 10.1016/j.saa.2019.117643] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/08/2019] [Accepted: 10/08/2019] [Indexed: 06/10/2023]
Abstract
Sulfite, which is a protective agent in various food industries, also is known as an allergen. Therefore, sulfite content in food must be monitored and controlled. In this context, a novel optical sensor is designed for simple, rapid and sensitive determination of the sulfite content in food samples. Acidified pararosaniline (PRA) hydrochloride reagent in cationic form was immobilized on the surface of the Nafion cation exchanger membrane by electrostatic interactions. In formaldehyde medium, the pale purple PRA-Nafion film was converted to rich purple due to the highly conjugated alkyl amino sulfonic acid formation in the presence of sulfite and the absorbance change at 588 nm was recorded. The proposed optical sensor gave a linear response in a wide concentration range for sulfite. The limit of detection (LOD) and the limit of quantification (LOQ) values obtained for sulfite were 0.084 and 0.280 ppm SO2 equivalent, respectively. The proposed optical sensor was validated in terms of linearity, additivity, precision and recovery parameters. The sulfite contents obtained for real food extracts were found to be comparable to the conventional iodometric titration results (with the exception of highly colored samples containing reducing agents, where iodometry was shown to exhibit a systematic error while the proposed sensor could measure the true value). The proposed optical sensor is insensitive to positive interferences from turbidity and colored components of the sample. Sulfite determination in a complex food matrix can be performed using the rapid, simple and sensitive PRA-based sensor without a need for pre-treatment.
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Affiliation(s)
- Mustafa Bener
- Department of Chemistry, Istanbul University-Cerrahpasa, 34320, Avcilar, Istanbul, Turkey
| | - Furkan Burak Şen
- Department of Chemistry, Istanbul University-Cerrahpasa, 34320, Avcilar, Istanbul, Turkey
| | - Reşat Apak
- Department of Chemistry, Istanbul University-Cerrahpasa, 34320, Avcilar, Istanbul, Turkey.
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Soares MCP, Gomes MK, Schenkel EA, Rodrigues MDS, Suzuki CK, Torre LGDL, Fujiwara E. EVALUATION OF SILICA NANOPARTICLE COLLOIDAL STABILITY WITH A FIBER OPTIC QUASI-ELASTIC LIGHT SCATTERING SENSOR. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2019. [DOI: 10.1590/0104-6632.20190364s20190042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Methane Gas Photonic Sensor Based on Resonant Coupled Cavities. SENSORS 2019; 19:s19235171. [PMID: 31779137 PMCID: PMC6929200 DOI: 10.3390/s19235171] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/04/2019] [Accepted: 11/22/2019] [Indexed: 11/16/2022]
Abstract
In this paper we report methane gas photonic sensors exploiting the principle of absorption-induced redirection of light propagation in coupled resonant cavities. In particular, an example of implemented architecture consists of a Fabry-Pérot (FP) resonator coupled to a fibre ring resonator, operating in the near IR. By changing the concentration of the methane gas in the FP region, the absorption coefficient of the FP changes. In turn, the variation of the methane gas concentration allows the redirection of the light propagation in the fibre ring resonator. Then, the methane gas concentration can be evaluated by analysing the ratio between the powers of two resonant modes, counter-propagating in the fibre ring resonator. In this way, a self-referenced read-out scheme, immune to the power fluctuations of the source, has been conceived. Moreover, a sensitivity of 0.37 ± 0.04 [dB/%], defined as the ratio between resonant modes at different outputs, in a range of methane concentration included between the 0% and 5%, has been achieved. These results allow a detection limit below the lower explosive limit (LEL) to be reached with a cost-effective sensor system.
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20
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Sensing Properties of Fused Silica Single-Mode Optical Fibers Based on PPP-BOTDA in High-Temperature Fields. SENSORS 2019; 19:s19225021. [PMID: 31752078 PMCID: PMC6891625 DOI: 10.3390/s19225021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/05/2019] [Accepted: 11/12/2019] [Indexed: 11/28/2022]
Abstract
The strain of fiber-reinforced polymer (FRP) bars at high temperatures is currently difficult to measure. To overcome this difficulty, a method of smart FRP bars embedded with optical fibers was proposed and studied, in which an ordinary single-mode optical fiber was applied as a distributed sensor. In this paper, both the distributed temperature and strain-sensing characteristics of optical fiber were studied based on pulse pre-pump Brillouin optical time-domain analysis (PPP-BOTDA) under high temperature. The temperature and strain coefficients were investigated under a thermomechanical coupling environment with consideration of large strain levels. The experimental results show that the temperature and strain coefficients decreased as the temperature increased, because the properties of silica and coating materials changed with temperature. Then, the formulas for determining the temperature and strain coefficients at high temperatures were introduced and discussed. The excellent sensing performance of the optical fiber indicated that smart FRP bars have the potential for use at high temperatures.
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Elsherif M, Moreddu R, Hassan MU, Yetisen AK, Butt H. Real-time optical fiber sensors based on light diffusing microlens arrays. LAB ON A CHIP 2019; 19:2060-2070. [PMID: 31114826 DOI: 10.1039/c9lc00242a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The applications of optical fibers are impeded in implantable medical diagnostics due to incompatibility with biological tissues, and immune reaction in vivo. The utilization of biocompatible materials to construct a photonic sensing platform can reduce the immune response in in vivo medical diagnostics. Here, we developed real-time optical fiber sensors to determine the volumetric modulation of stimuli-responsive polymers. Asymmetric microlens structures were replicated on stimuli-sensitive hydrogels as stand-alone sensors and were chemically attached to the tips of silica and biocompatible optical fibers. Quantitative measurements were carried out using a smartphone to demonstrate the ease, simplicity, and practicality of the readout methodology. To demonstrate the utility in real-time sensing, the fiber probe was investigated in various concentrations of ethanol, propan-2-ol, and dimethyl sulfoxide. Also, the fiber probe showed a rapid response to pH in the acidic region with a sensitivity of 40 nW pH-1. To develop biocompatible probes for physiological applications, a microlens array-imprinted polymer was attached to the tip of a hydrogel optical fiber. The optical fiber probe in the refection configuration showed a sensitivity of 7 nW pH-1. The developed hydrogel fiber probes may have application in point-of-care diagnostics, continuous biomarker monitoring, and critical care sensing devices.
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Affiliation(s)
- Mohamed Elsherif
- School of Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
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22
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A review of microfabricated electrochemical biosensors for DNA detection. Biosens Bioelectron 2019; 134:57-67. [DOI: 10.1016/j.bios.2019.03.055] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/21/2019] [Accepted: 03/26/2019] [Indexed: 02/07/2023]
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23
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Shamsipur M, Barati A, Nematifar Z. Fluorescent pH nanosensors: Design strategies and applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2019.03.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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24
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Frankær CG, Sørensen TJ. Investigating the Time Response of an Optical pH Sensor Based on a Polysiloxane-Polyethylene Glycol Composite Material Impregnated with a pH-Responsive Triangulenium Dye. ACS OMEGA 2019; 4:8381-8389. [PMID: 31459927 PMCID: PMC6648965 DOI: 10.1021/acsomega.9b00795] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 04/30/2019] [Indexed: 05/07/2023]
Abstract
Determining the time it takes a sensor to report a change in the concentration of its target analyte may appear to be an easy task, but it is not. The dynamic characteristic of a sensor is determined by all components in the sensor system and the hydrodynamics of the sample. Here, the dynamic properties of an optical pH sensor were determined using the IUPAC-recommended activity step method in experimental setups that can determine sensor-limited response times longer than 5 s. In order to do so, experimental setups for the injection and for the dipping method of determining the sensor time response were developed, tested, and shown to be able to determine time-response curves with 1 s time resolution. This time resolution is shown to be sufficient for determining dynamic characterization of this optical pH sensor. The sensor chemistry-limited time-response curves were analyzed using curve fitting. It was found that the optode response time is limited by diffusion of protons within the sensor material when the proton concentration is reduced and limited by diffusion from the bulk to the boundary layer at the optode surface when proton concentration is increased. The latter is dependent on the magnitude of the change in analyte concentration and cannot be reported as a single response time. The investigation of the time response of the optical pH sensor reveals detailed information of the sensor chemistry, but does not yield a single response time of the sensor capable of describing the dynamic sensor characteristics of the optical pH sensor system.
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Affiliation(s)
- Christian G. Frankær
- Nano-Science
Center & Department of Chemistry, University
of Copenhagen, Universitetsparken
5, 2100 Copenhagen, Denmark
- E-mail: (C.G.F.)
| | - Thomas J. Sørensen
- Nano-Science
Center & Department of Chemistry, University
of Copenhagen, Universitetsparken
5, 2100 Copenhagen, Denmark
- FRS-systems
ApS, Hovedgaden 20, 4621 Gadstrup, Denmark
- E-mail: (T.J.S.)
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Microstructured Optical Waveguide-Based Endoscopic Probe Coated with Silica Submicron Particles. MATERIALS 2019; 12:ma12091424. [PMID: 31052408 PMCID: PMC6539507 DOI: 10.3390/ma12091424] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 04/24/2019] [Accepted: 04/28/2019] [Indexed: 11/17/2022]
Abstract
Microstructured optical waveguides (MOW) are of great interest for chemical and biological sensing. Due to the high overlap between a guiding light mode and an analyte filling of one or several fiber capillaries, such systems are able to provide strong sensitivity with respect to variations in the refractive index and the thickness of filling materials. Here, we introduce a novel type of functionalized MOWs whose capillaries are coated by a layer-by-layer (LBL) approach, enabling the alternate deposition of silica particles (SiO2) at different diameters—300 nm, 420 nm, and 900 nm—and layers of poly(diallyldimethylammonium chloride) (PDDA). We demonstrate up to three covering bilayers consisting of 300-nm silica particles. Modifications in the MOW transmission spectrum induced by coating are measured and analyzed. The proposed technique of MOW functionalization allows one to reach novel sensing capabilities, including an increase in the effective sensing area and the provision of a convenient scaffold for the attachment of long molecules such as proteins.
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26
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Brandner JJ. In-Situ Measurements in Microscale Gas Flows-Conventional Sensors or Something Else? MICROMACHINES 2019; 10:E292. [PMID: 31035685 PMCID: PMC6562918 DOI: 10.3390/mi10050292] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/24/2019] [Accepted: 04/26/2019] [Indexed: 12/03/2022]
Abstract
Within the last few decades miniaturization has a driving force in almost all areas of technology, leading to a tremendous intensification of systems and processes. Information technology provides now data density several orders of magnitude higher than a few years ago, and the smartphone technology includes, as well the simple ability to communicate with others, features like internet, video and music streaming, but also implementation of the global positioning system, environment sensors or measurement systems for individual health. So-called wearables are everywhere, from the physio-parameter sensing wrist smart watch up to the measurement of heart rates by underwear. This trend holds also for gas flow applications, where complex flow arrangements and measurement systems formerly designed for a macro scale have been transferred into miniaturized versions. Thus, those systems took advantage of the increased surface to volume ratio as well as of the improved heat and mass transfer behavior of miniaturized equipment. In accordance, disadvantages like gas flow mal-distribution on parallelized mini- or micro tubes or channels as well as increased pressure losses due to the minimized hydraulic diameters and an increased roughness-to-dimension ratio have to be taken into account. Furthermore, major problems are arising for measurement and control to be implemented for in-situ and/or in-operando measurements. Currently, correlated measurements are widely discussed to obtain a more comprehensive view to a process by using a broad variety of measurement techniques complementing each other. Techniques for correlated measurements may include commonly used techniques like thermocouples or pressure sensors as well as more complex systems like gas chromatography, mass spectrometry, infrared or ultraviolet spectroscopy and many others. Some of these techniques can be miniaturized, some of them cannot yet. Those should, nevertheless, be able to conduct measurements at the same location and the same time, preferably in-situ and in-operando. Therefore, combinations of measurement instruments might be necessary, which will provide complementary techniques for accessing local process information. A recently more intensively discussed additional possibility is the application of nuclear magnetic resonance (NMR) systems, which might be useful in combination with other, more conventional measurement techniques. NMR is currently undergoing a tremendous change from large-scale to benchtop measurement systems, and it will most likely be further miniaturized. NMR allows a multitude of different measurements, which are normally covered by several instruments. Additionally, NMR can be combined very well with other measurement equipment to perform correlative in-situ and in-operando measurements. Such combinations of several instruments would allow us to retrieve an "information cloud" of a process. This paper will present a view of some common measurement techniques and the difficulties of applying them on one hand in a miniaturized scale, and on the other hand in a correlative mode. Basic suggestions to achieve the above-mentioned objective by a combination of different methods including NMR will be given.
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Affiliation(s)
- Juergen J Brandner
- Staff Position Microstructures and Process Sensors (MPS), Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
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27
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Frankær CG, Sørensen TJ. A unified approach for investigating chemosensor properties - dynamic characteristics. Analyst 2019; 144:2208-2225. [PMID: 30839988 DOI: 10.1039/c9an00268e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Chemosensors are a group of sensors-responsive sensor chemistry, sensor hardware, and software-that report on the composition of solutions and gaseous samples. Dynamic properties are fundamental for all sensor characterization. While electrochemical chemosensors have seen a century of research and are well-described, research on chemosensors using other modes of transductions are still at an early stage. The dynamic properties of chemosensors-independent of their mode of transduction-are not reported consistently in the literature. This makes it impossible to compare sensor performance of chemosensors from different manufacturers and laboratories. To remedy this, standardized experimental methods that exclude the influence of drift and any dependence on activity step change must be used. Subsequently, the resulting data must be treated using a unifying analysis formalism, and robust values must be used to describe chemosensor characteristics. Characterizing the sensor properties in turn enables rationalizing the link between sensor performance and sensor chemistry. Following a review of sensor theory, a thorough discussion of experimental methods and data analysis models for determining dynamic sensor properties, we arrive at evidence-based recommendations for good practice when describing new chemosensors. Adhering to these recommendations, sensor performance can be compared between laboratories, and information on the sensor chemistry may be revealed in the data analysis. This topic is particularly relevant in the rapidly maturing field of optical chemosensors.
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Affiliation(s)
- Christian G Frankær
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark.
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28
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Pawar D, Kale SN. A review on nanomaterial-modified optical fiber sensors for gases, vapors and ions. Mikrochim Acta 2019; 186:253. [DOI: 10.1007/s00604-019-3351-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 02/28/2019] [Indexed: 12/23/2022]
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29
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Frankær CG, Rosenberg M, Santella M, Hussain KJ, Laursen BW, Sørensen TJ. Tuning the p K a of a pH Responsive Fluorophore and the Consequences for Calibration of Optical Sensors Based on a Single Fluorophore but Multiple Receptors. ACS Sens 2019; 4:764-773. [PMID: 30762336 DOI: 10.1021/acssensors.9b00148] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Since Sørensen and Bjerrum defined the pH scale, we have relied on two methods for determining pH, the colorimetric or the electrochemical. For pH electrodes, calibration is easy as a linear response is observed in the interesting pH range from 1 to ∼12. For colorimetric sensors, the response follows the sigmoidal Bjerrum diagram of an acid-base equilibrium. Thus, calibration of colorimetric sensors is more complex. Here, seven pH responsive fluorescent dyes based on the same diazaoxatriangulenium (DAOTA) fluorophore linked to varying receptor groups were prepared. Photoinduced electron transfer (PeT) quenching from appended aniline or phenol receptors generated the pH response of the DAOTA dyes, and the position of the p Ka value of the dye was tuned using the Hammett relationship as a guideline. The fluorescence intensity of the dyes in a sol-gel matrix environment was measured as a function of pH in universal buffer, and it was found that the dyes behave as perfect pH responsive probes under these conditions. The response of optical pH sensors is nonlinear and was found to be limited to 2-3 pH units for a precision of 0.01 pH unit. As sensors with a broader sensitivity range can be achieved by mixing multiple dyes with different p Ka values, mixtures of dyes in solution were investigated, and a broad range pH sensor with a precision of 0.006 pH units over a range of 3.6 pH units was demonstrated. Further, approximating the sensor response as linear was considered, and a limiting precision for this approach was determined. As the responses of the pH responsive DAOTA dyes were found to be ideally sigmoidal and as the six dyes were shown to have p Ka values scattered over a range from ∼2 to ∼9, this allows for design of a broad range optical pH sensor in the pH range from 1 to 10. This hypothesis was tested using quaternary mixtures of the different DAOTA dyes, and these were found to behave as a direct sum of the individual components. Thus, while linear calibration is limited to a precision of 0.02 in a range of 2-3 pH units, calibration using ideal sigmoidal functions is possible in the range of 1-10 with a precision better than 0.01, and as good as 0.002 pH units.
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Affiliation(s)
- Christian G. Frankær
- Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
- FRS-systems ApS, Hovedgaden 20, 4621 Gadstrup, Denmark
| | - Martin Rosenberg
- Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
| | - Marco Santella
- Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
| | | | - Bo W. Laursen
- Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
| | - Thomas J. Sørensen
- Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
- FRS-systems ApS, Hovedgaden 20, 4621 Gadstrup, Denmark
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30
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Ghoneim MT, Nguyen A, Dereje N, Huang J, Moore GC, Murzynowski PJ, Dagdeviren C. Recent Progress in Electrochemical pH-Sensing Materials and Configurations for Biomedical Applications. Chem Rev 2019; 119:5248-5297. [PMID: 30901212 DOI: 10.1021/acs.chemrev.8b00655] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
pH-sensing materials and configurations are rapidly evolving toward exciting new applications, especially those in biomedical applications. In this review, we highlight rapid progress in electrochemical pH sensors over the past decade (2008-2018) with an emphasis on key considerations, such as materials selection, system configurations, and testing protocols. In addition to recent progress in optical pH sensors, our main focus in this review is on electromechanical pH sensors due to their significant advances, especially in biomedical applications. We summarize developments of electrochemical pH sensors that by virtue of their optimized material chemistries (from metal oxides to polymers) and geometrical features (from thin films to quantum dots) enable their adoption in biomedical applications. We further present an overview of necessary sensing standards and protocols. Standards ensure the establishment of consistent protocols, facilitating collective understanding of results and building on the current state. Furthermore, they enable objective benchmarking of various pH-sensing reports, materials, and systems, which is critical for the overall progression and development of the field. Additionally, we list critical issues in recent literary reporting and suggest various methods for objective benchmarking. pH regulation in the human body and state-of-the-art pH sensors (from ex vivo to in vivo) are compared for suitability in biomedical applications. We conclude our review by (i) identifying challenges that need to be overcome in electrochemical pH sensing and (ii) providing an outlook on future research along with insights, in which the integration of various pH sensors with advanced electronics can provide a new platform for the development of novel technologies for disease diagnostics and prevention.
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31
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Natural Source-Based Graphene as Sensitising Agents for Air Quality Monitoring. Sci Rep 2019; 9:3798. [PMID: 30846771 PMCID: PMC6405873 DOI: 10.1038/s41598-019-40433-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 02/13/2019] [Indexed: 11/30/2022] Open
Abstract
Natural carbon powder has been used as a precursor to prepare two main types of sensitising agents of nitrogen-doped carbon nanoparticles (N-CNPs) and nitrogen-doped graphene quantum dots coupled to nanosheets (N-GQDs-NSs) by using simple treatments of chemical oxidation and centrifugation separation. Characterization based on FTIR, XPS, XRD, Raman spectroscopy, FE-SEM, HR-TEM, AFM, UV-Vis and FL, revealed successful doping carbon nanoparticle with nitrogen with an average plane dimension of 50 nm and relatively smooth surface. The versatility of the prepared samples as sensitising agents was developed and established by exploiting its ability for detection of volatile organic compounds via simple optical fibre based sensing configuration. The comparative experimental studies on the proposed sensor performance indicate fast response achieved at a few tens of seconds and excellent repeatability in exposure to the methanol vapour. The low limit of detection of 4.3, 4.9 and 10.5 ppm was obtained in exposure to the methanol, ethanol and propanol vapours, respectively, in the atmosphere condition. This study gives insights into the chemical/physical mechanism of an enhanced economic optical fibre based gas sensor and illustrates it for diverse sensing applications, especially for chemical vapour remote detection and future air quality monitoring.
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32
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Xu M, Obodo D, Yadavalli VK. The design, fabrication, and applications of flexible biosensing devices. Biosens Bioelectron 2019; 124-125:96-114. [PMID: 30343162 PMCID: PMC6310145 DOI: 10.1016/j.bios.2018.10.019] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/29/2018] [Accepted: 10/09/2018] [Indexed: 12/13/2022]
Abstract
Flexible biosensors form part of a rapidly growing research field that take advantage of a multidisciplinary approach involving materials, fabrication and design strategies to be able to function at biological interfaces that may be soft, intrinsically curvy, irregular, or elastic. Numerous exciting advancements are being proposed and developed each year towards applications in healthcare, fundamental biomedical research, food safety and environmental monitoring. In order to place these developments in perspective, this review is intended to present an overview on field of flexible biosensor development. We endeavor to show how this subset of the broader field of flexible and wearable devices presents unique characteristics inherent in their design. Initially, a discussion on the structure of flexible biosensors is presented to address the critical issues specific to their design. We then summarize the different materials as substrates that can resist mechanical deformation while retaining their function of the bioreceptors and active elements. Several examples of flexible biosensors are presented based on the different environments in which they may be deployed or on the basis of targeted biological analytes. Challenges and future perspectives pertinent to the current and future stages of development are presented. Through these summaries and discussion, this review is expected to provide insights towards a systematic and fundamental understanding for the fabrication and utilization of flexible biosensors, as well as inspire and improve designs for smart and effective devices in the future.
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Affiliation(s)
- Meng Xu
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W Main Street, Richmond, VA 23284, USA
| | - Dora Obodo
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W Main Street, Richmond, VA 23284, USA
| | - Vamsi K Yadavalli
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W Main Street, Richmond, VA 23284, USA.
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33
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Liang W, Wu C, Cai Z, Sun Y, Zhang H, Wu P, Cai C. Tuning the electron transport band gap of bovine serum albumin by doping with Vb12. Chem Commun (Camb) 2019; 55:2853-2856. [DOI: 10.1039/c9cc00688e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile method to tune the electron transport band gaps of proteins via doping with other molecules is reported.
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Affiliation(s)
- Wenhui Liang
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097
| | - Chuanli Wu
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097
| | - Zhewei Cai
- Department of Chemical and Biomolecular Engineering
- Clarkson University
- Potsdam
- USA
| | - Yujie Sun
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097
| | - Hui Zhang
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097
| | - Ping Wu
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097
| | - Chenxin Cai
- Jiangsu Key Laboratory of New Power Batteries
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210097
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34
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Sulzer P, Lebl R, Kappe CO, Mayr T. Oxygen sensors for flow reactors – measuring dissolved oxygen in organic solvents. REACT CHEM ENG 2019. [DOI: 10.1039/c9re00253g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We are demonstrating a solvent resistant optical sensor for measuring dissolved oxygen in pressurized micro flow reactors.
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Affiliation(s)
- Philipp Sulzer
- Institute of Analytical Chemistry and Food Chemistry
- Graz University of Technology
- 8010 Graz
- Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW)
| | - René Lebl
- Institute of Chemistry
- University of Graz
- 8010 Graz
- Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW)
| | - C. Oliver Kappe
- Institute of Chemistry
- University of Graz
- 8010 Graz
- Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW)
| | - Torsten Mayr
- Institute of Analytical Chemistry and Food Chemistry
- Graz University of Technology
- 8010 Graz
- Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW)
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35
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Recent development of fiber-optic chemical sensors and biosensors: Mechanisms, materials, micro/nano-fabrications and applications. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.08.001] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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36
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Nugroho FAA, Eklund R, Nilsson S, Langhammer C. A fiber-optic nanoplasmonic hydrogen sensor via pattern-transfer of nanofabricated PdAu alloy nanostructures. NANOSCALE 2018; 10:20533-20539. [PMID: 30397701 DOI: 10.1039/c8nr03751e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We demonstrate the transfer of arrays of nanofabricated noble metal and alloy nanostructures obtained by high-temperature annealing on a flat parent support onto optical fibers, to create a hysteresis-free fiber optic nanoplasmonic hydrogen sensor. This work enables the integration of complex nanofabricated structures and their arrangements in tailored arrays with fiber optics to realize optical sensors, which will find application in a wide range of disciplines.
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Abstract
Optimization of dairy fermentation processes often requires multiplexed pH measurements over several hours. The method developed here measures up to 90 samples simultaneously, where traditional electrode-based methods require a lot more time for handing the same number of samples. Moreover, the new method employs commonly used materials and can be used with a wider range of fluorescence readers than commercial 96-well plates with optical pH sensors. For this application, a milk-like transparent medium is developed that shows acidification properties with dairy starters that are similar to milk. Combination of this milk-like medium and 3 fluorescent indicators allow precise measurements of pH in a range of 4·0-7·0. The new method showed much higher throughput compared to the benchmark electrode systems while being as accurate, as shown by successful application for a comparison of various dairy starter cultures and for optimizing the inoculation rate.
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38
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Wang Y, Yang Q, Zhao M, Wu J, Su B. Silica-Nanochannel-Based Interferometric Sensor for Selective Detection of Polar and Aromatic Volatile Organic Compounds. Anal Chem 2018; 90:10780-10785. [DOI: 10.1021/acs.analchem.8b01681] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yafeng Wang
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Qian Yang
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Meijiao Zhao
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Jianmin Wu
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Bin Su
- Institute of Analytical Chemistry, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
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39
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A novel “modularized” optical sensor for pH monitoring in biological matrixes. Biosens Bioelectron 2018; 109:150-155. [DOI: 10.1016/j.bios.2018.02.052] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 02/06/2018] [Accepted: 02/24/2018] [Indexed: 11/18/2022]
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40
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He J, Beck NK, Kossik AL, Zhang J, Seto E, Meschke JS, Novosselov I. Evaluation of micro-well collector for capture and analysis of aerosolized Bacillus subtilis spores. PLoS One 2018; 13:e0197783. [PMID: 29847559 PMCID: PMC5976188 DOI: 10.1371/journal.pone.0197783] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/08/2018] [Indexed: 12/17/2022] Open
Abstract
Bioaerosol sampling and identification are vital for the assessment and control of airborne pathogens, allergens, and toxins. In-situ analysis of chemical and biological particulate matter can significantly reduce the costs associated with sample preservation, transport, and analysis. The analysis of conventional filters is challenging, due to dilute samples in large collection regions. A low-cost cartridge for collection and analysis of aerosols is developed for use in epidemiological studies and personal exposure assessments. The cartridge collects aerosol samples in a micro-well which reduces particles losses due to the bounce and does not require any coating. The confined particle collection area (dwell~1.4 mm) allows reducing the elution volume for subsequent analysis. The performance of the cartridge is validated in laboratory studies using aerosolized bacterial spores (Bacillus subtilis). Colony forming unit analysis is used for bacterial spore enumeration. Cartridge collection efficiency is evaluated by comparison with the reference filters and found to be consistent with tested flow rates. Sample recovery for the pipette elution is ~80%. Due to the high density of the collected sample, the cartridge is compatible with in-situ spectroscopic analysis and sample elution into the 10-20 μl liquid volume providing a significant increase in sample concentration for subsequent analysis.
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Affiliation(s)
- Jiayang He
- University of Washington, Mechanical Engineering, Seattle, WA, United States of America
| | - Nicola K. Beck
- University of Washington, Department of Environmental and Occupational Health Sciences, Seattle, WA, United States of America
| | - Alexandra L. Kossik
- University of Washington, Department of Environmental and Occupational Health Sciences, Seattle, WA, United States of America
| | - Jiawei Zhang
- University of Washington, Mechanical Engineering, Seattle, WA, United States of America
| | - Edmund Seto
- University of Washington, Department of Environmental and Occupational Health Sciences, Seattle, WA, United States of America
| | - John Scott Meschke
- University of Washington, Department of Environmental and Occupational Health Sciences, Seattle, WA, United States of America
| | - Igor Novosselov
- University of Washington, Mechanical Engineering, Seattle, WA, United States of America
- University of Washington, Department of Environmental and Occupational Health Sciences, Seattle, WA, United States of America
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41
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La Spada L, Vegni L. Electromagnetic Nanoparticles for Sensing and Medical Diagnostic Applications. MATERIALS 2018; 11:ma11040603. [PMID: 29652853 PMCID: PMC5951487 DOI: 10.3390/ma11040603] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 04/04/2018] [Accepted: 04/09/2018] [Indexed: 11/16/2022]
Abstract
A modeling and design approach is proposed for nanoparticle-based electromagnetic devices. First, the structure properties were analytically studied using Maxwell's equations. The method provides us a robust link between nanoparticles electromagnetic response (amplitude and phase) and their geometrical characteristics (shape, geometry, and dimensions). Secondly, new designs based on "metamaterial" concept are proposed, demonstrating great performances in terms of wide-angle range functionality and multi/wide behavior, compared to conventional devices working at the same frequencies. The approach offers potential applications to build-up new advanced platforms for sensing and medical diagnostics. Therefore, in the final part of the article, some practical examples are reported such as cancer detection, water content measurements, chemical analysis, glucose concentration measurements and blood diseases monitoring.
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Affiliation(s)
- Luigi La Spada
- School of Computing, Electronics and Mathematics, Coventry University, Coventry CV1 5FB, UK.
| | - Lucio Vegni
- Department of Engineering, University of Roma Tre, Via Vito Volterra 62, 00146 Rome, Italy.
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42
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Frankær CG, Hussain KJ, Rosenberg M, Jensen A, Laursen BW, Sørensen TJ. Biocompatible Microporous Organically Modified Silicate Material with Rapid Internal Diffusion of Protons. ACS Sens 2018; 3:692-699. [PMID: 29471629 DOI: 10.1021/acssensors.8b00024] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new four-component organically modified silicate (ORMOSIL) material was developed with optical pH sensors in mind. Through a sol-gel process, the porosity of an ORMOSIL framework was optimized to allow rapid diffusion of protons, ideal for fast response to pH in an optical sensor. The optically transparent material was produced by catalyzing the dual polymerization of 3-(glycidoxy)propyltrimethoxysilane (GPTMS) and propyltriethoxysilane (PrTES) with boron trifluoride diethyl etherate. The performance of the resulting material in fluorescence based optical pH sensors was evaluated by incorporation of active dye components in the inorganic polymer framework. It is demonstrated that the material has a short response time ( t90 < 30 s) and high stability in medium and during storage, and resulting sensor spots are biocompatible. It is concluded that this ORMOSIL material has excellent properties for optical pH sensors.
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Affiliation(s)
- Christian Grundahl Frankær
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
- FRS-systems ApS, Hovedgaden 20, 4621 Gadstrup, Denmark
| | | | - Martin Rosenberg
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
| | - Anders Jensen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
| | - Bo W. Laursen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
| | - Thomas Just Sørensen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
- FRS-systems ApS, Hovedgaden 20, 4621 Gadstrup, Denmark
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43
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Abstract
Ozone (O3) gas is widely used as a strong oxidizing agent for many purposes, such as the decomposition/removal of organic contaminants and photoresist, and the deodorization/disinfection of air and water. However, ozone is highly toxic to the human body when the air concentration exceeds about 1 ppm. Therefore, there is increasing demand for simple, sensitive, reliable, and cost-effective techniques for sensing ozone gas. This article describes the features, advantages, and disadvantages of the available, practical techniques for sensing ozone gas in ambient air. The advantages of optical gas sensors as next-generation sensors is specifically introduced. The features of photoluminescent, semiconductor nanoparticles (quantum dots, QDs) as bright phosphors with the potential for various applications is further explored. Lastly, recent research results demonstrating the ozone sensitivity of photoluminescent CdSe-based core-shell quantum dots are presented. These results strongly suggest that optical ozone sensing using photoluminescent quantum dots is a promising technique.
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Affiliation(s)
- Masanori Ando
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
| | - Vasudevanpillai Biju
- Research Institute for Electronic Science and Graduate School of Environmental Science, Hokkaido University
| | - Yasushi Shigeri
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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44
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Okazaki T, Shiokawa E, Orii T, Yamamoto T, Hata N, Taguchi A, Sugawara K, Kuramitz H. Simultaneous Multiselective Spectroelectrochemical Fiber-Optic Sensor: Sensing with an Optically Transparent Electrode. Anal Chem 2018; 90:2440-2445. [DOI: 10.1021/acs.analchem.7b03957] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Takuya Okazaki
- Department
of Environmental Biology and Chemistry, Graduate School of Science
and Engineering for Research, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Eri Shiokawa
- Department
of Environmental Biology and Chemistry, Graduate School of Science
and Engineering for Research, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Tatsuya Orii
- Department
of Environmental Biology and Chemistry, Graduate School of Science
and Engineering for Research, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Takamichi Yamamoto
- Department
of Environmental Biology and Chemistry, Graduate School of Science
and Engineering for Research, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Noriko Hata
- Department
of Environmental Biology and Chemistry, Graduate School of Science
and Engineering for Research, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Akira Taguchi
- Hydrogen
Isotope Research Center, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | | | - Hideki Kuramitz
- Department
of Environmental Biology and Chemistry, Graduate School of Science
and Engineering for Research, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
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45
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Bostick CD, Mukhopadhyay S, Pecht I, Sheves M, Cahen D, Lederman D. Protein bioelectronics: a review of what we do and do not know. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2018; 81:026601. [PMID: 29303117 DOI: 10.1088/1361-6633/aa85f2] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We review the status of protein-based molecular electronics. First, we define and discuss fundamental concepts of electron transfer and transport in and across proteins and proposed mechanisms for these processes. We then describe the immobilization of proteins to solid-state surfaces in both nanoscale and macroscopic approaches, and highlight how different methodologies can alter protein electronic properties. Because immobilizing proteins while retaining biological activity is crucial to the successful development of bioelectronic devices, we discuss this process at length. We briefly discuss computational predictions and their connection to experimental results. We then summarize how the biological activity of immobilized proteins is beneficial for bioelectronic devices, and how conductance measurements can shed light on protein properties. Finally, we consider how the research to date could influence the development of future bioelectronic devices.
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Affiliation(s)
- Christopher D Bostick
- Department of Pharmaceutical Sciences, West Virginia University, Morgantown, WV 26506, United States of America. Institute for Genomic Medicine, Columbia University Medical Center, New York, NY 10032, United States of America
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46
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Song Y, Bai J, Zhang R, He H, Li C, Wang J, Li S, Peng Y, Ning B, Wang M, Gao Z. Michael-Addition-Mediated Photonic Crystals Allow Pretreatment-Free and Label-Free Sensoring of Ciprofloxacin in Fish Farming Water. Anal Chem 2017; 90:1388-1394. [DOI: 10.1021/acs.analchem.7b04655] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yanqiu Song
- College
of Food Science and Engineering, Shandong Agricultural University, Tai’an 271018, P. R. China
- Tianjin
Key Laboratory of Risk Assessment and Control Technology for Environment
and Food Safety, Tianjin Institute of Health and Environmental Medicine, Tianjin 300050, P. R. China
| | - Jialei Bai
- Tianjin
Key Laboratory of Risk Assessment and Control Technology for Environment
and Food Safety, Tianjin Institute of Health and Environmental Medicine, Tianjin 300050, P. R. China
| | - Rong Zhang
- Tianjin
Key Laboratory of Risk Assessment and Control Technology for Environment
and Food Safety, Tianjin Institute of Health and Environmental Medicine, Tianjin 300050, P. R. China
| | - Houluo He
- Tianjin
Key Laboratory of Risk Assessment and Control Technology for Environment
and Food Safety, Tianjin Institute of Health and Environmental Medicine, Tianjin 300050, P. R. China
| | - Chao Li
- Tianjin
Key Laboratory of Risk Assessment and Control Technology for Environment
and Food Safety, Tianjin Institute of Health and Environmental Medicine, Tianjin 300050, P. R. China
| | - Jiang Wang
- Tianjin
Key Laboratory of Risk Assessment and Control Technology for Environment
and Food Safety, Tianjin Institute of Health and Environmental Medicine, Tianjin 300050, P. R. China
| | - Shuang Li
- Tianjin
Key Laboratory of Risk Assessment and Control Technology for Environment
and Food Safety, Tianjin Institute of Health and Environmental Medicine, Tianjin 300050, P. R. China
| | - Yuan Peng
- Tianjin
Key Laboratory of Risk Assessment and Control Technology for Environment
and Food Safety, Tianjin Institute of Health and Environmental Medicine, Tianjin 300050, P. R. China
| | - Baoan Ning
- Tianjin
Key Laboratory of Risk Assessment and Control Technology for Environment
and Food Safety, Tianjin Institute of Health and Environmental Medicine, Tianjin 300050, P. R. China
| | - Minglin Wang
- College
of Food Science and Engineering, Shandong Agricultural University, Tai’an 271018, P. R. China
| | - Zhixian Gao
- Tianjin
Key Laboratory of Risk Assessment and Control Technology for Environment
and Food Safety, Tianjin Institute of Health and Environmental Medicine, Tianjin 300050, P. R. China
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47
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Oliverio M, Perotto S, Messina GC, Lovato L, De Angelis F. Chemical Functionalization of Plasmonic Surface Biosensors: A Tutorial Review on Issues, Strategies, and Costs. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29394-29411. [PMID: 28796479 PMCID: PMC5593307 DOI: 10.1021/acsami.7b01583] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 08/10/2017] [Indexed: 05/21/2023]
Abstract
In an ideal plasmonic surface sensor, the bioactive area, where analytes are recognized by specific biomolecules, is surrounded by an area that is generally composed of a different material. The latter, often the surface of the supporting chip, is generally hard to be selectively functionalized, with respect to the active area. As a result, cross talks between the active area and the surrounding one may occur. In designing a plasmonic sensor, various issues must be addressed: the specificity of analyte recognition, the orientation of the immobilized biomolecule that acts as the analyte receptor, and the selectivity of surface coverage. The objective of this tutorial review is to introduce the main rational tools required for a correct and complete approach to chemically functionalize plasmonic surface biosensors. After a short introduction, the review discusses, in detail, the most common strategies for achieving effective surface functionalization. The most important issues, such as the orientation of active molecules and spatial and chemical selectivity, are considered. A list of well-defined protocols is suggested for the most common practical situations. Importantly, for the reported protocols, we also present direct comparisons in term of costs, labor demand, and risk vs benefit balance. In addition, a survey of the most used characterization techniques necessary to validate the chemical protocols is reported.
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Affiliation(s)
- Manuela Oliverio
- Department of Health
Science, University Magna Graecia of Catanzaro, Viale Europa−Loc. Germaneto, 88100 Catanzaro, Italy
- Italian Institute of Technology, Via Morego 30, 16163 Genova, Italy
| | - Sara Perotto
- Italian Institute of Technology, Via Morego 30, 16163 Genova, Italy
- Department of Informatics,
Bioengineering, Robotics and Systems Engineering (DIBRIS), Università degli Studi di Genova, Via Balbi 5, 16126 Genova, Italy
| | | | - Laura Lovato
- Italian Institute of Technology, Via Morego 30, 16163 Genova, Italy
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48
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Schartner EP, Henderson MR, Purdey M, Dhatrak D, Monro TM, Gill PG, Callen DF. Cancer Detection in Human Tissue Samples Using a Fiber-Tip pH Probe. Cancer Res 2017; 76:6795-6801. [PMID: 27903493 DOI: 10.1158/0008-5472.can-16-1285] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 08/24/2016] [Accepted: 09/13/2016] [Indexed: 11/16/2022]
Abstract
Intraoperative detection of tumorous tissue is an important unresolved issue for cancer surgery. Difficulty in differentiating between tissue types commonly results in the requirement for additional surgeries to excise unremoved cancer tissue or alternatively in the removal of excess amounts of healthy tissue. Although pathologic methods exist to determine tissue type during surgery, these methods can compromise postoperative pathology, have a lag of minutes to hours before the surgeon receives the results of the tissue analysis, and are restricted to excised tissue. In this work, we report the development of an optical fiber probe that could potentially find use as an aid for margin detection during surgery. A fluorophore-doped polymer coating is deposited on the tip of an optical fiber, which can then be used to record the pH by monitoring the emission spectra from this dye. By measuring the tissue pH and comparing with the values from regular tissue, the tissue type can be determined quickly and accurately. The use of a novel lift-and-measure technique allows for these measurements to be performed without influence from the inherent autofluorescence that commonly affects fluorescence-based measurements on biological samples. The probe developed here shows strong potential for use during surgery, as the probe design can be readily adapted to a low-cost portable configuration, which could find use in the operating theater. Use of this probe in surgery either on excised or in vivo tissue has the potential to improve success rates for complete removal of cancers. Cancer Res; 76(23); 6795-801. ©2016 AACR.
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Affiliation(s)
- Erik P Schartner
- Institute for Photonics and Advanced Sensing, School of Physical Sciences, The University of Adelaide, Adelaide, Australia. .,ARC Centre for Nanoscale BioPhotonics, The University of Adelaide, Adelaide, Australia
| | - Matthew R Henderson
- Institute for Photonics and Advanced Sensing, School of Physical Sciences, The University of Adelaide, Adelaide, Australia
| | - Malcolm Purdey
- Institute for Photonics and Advanced Sensing, School of Physical Sciences, The University of Adelaide, Adelaide, Australia.,ARC Centre for Nanoscale BioPhotonics, The University of Adelaide, Adelaide, Australia.,Heart Health Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
| | | | - Tanya M Monro
- Institute for Photonics and Advanced Sensing, School of Physical Sciences, The University of Adelaide, Adelaide, Australia.,ARC Centre for Nanoscale BioPhotonics, The University of Adelaide, Adelaide, Australia.,University of South Australia, Adelaide, Australia
| | - P Grantley Gill
- Department of Surgery, University of Adelaide & Breast, Endocrine & Surgical Oncology Unit, Royal Adelaide Hospital, Adelaide, Australia
| | - David F Callen
- Centre for Personalised Cancer Medicine, School of Medicine, University of Adelaide, Adelaide, Australia
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49
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Zubiate P, Zamarreño C, Sánchez P, Matias I, Arregui F. High sensitive and selective C-reactive protein detection by means of lossy mode resonance based optical fiber devices. Biosens Bioelectron 2017; 93:176-181. [DOI: 10.1016/j.bios.2016.09.020] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 09/04/2016] [Accepted: 09/06/2016] [Indexed: 10/21/2022]
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50
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Wang X, Liu Z, Zhang T. Flexible Sensing Electronics for Wearable/Attachable Health Monitoring. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1602790. [PMID: 28306196 DOI: 10.1002/smll.201602790] [Citation(s) in RCA: 308] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 02/07/2017] [Indexed: 05/19/2023]
Abstract
Wearable or attachable health monitoring smart systems are considered to be the next generation of personal portable devices for remote medicine practices. Smart flexible sensing electronics are components crucial in endowing health monitoring systems with the capability of real-time tracking of physiological signals. These signals are closely associated with body conditions, such as heart rate, wrist pulse, body temperature, blood/intraocular pressure and blood/sweat bio-information. Monitoring such physiological signals provides a convenient and non-invasive way for disease diagnoses and health assessments. This Review summarizes the recent progress of flexible sensing electronics for their use in wearable/attachable health monitoring systems. Meanwhile, we present an overview of different materials and configurations for flexible sensors, including piezo-resistive, piezo-electrical, capacitive, and field effect transistor based devices, and analyze the working principles in monitoring physiological signals. In addition, the future perspectives of wearable healthcare systems and the technical demands on their commercialization are briefly discussed.
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Affiliation(s)
- Xuewen Wang
- Centre for Programmed Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Zheng Liu
- Centre for Programmed Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Ting Zhang
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China
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