1
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Kantelberg R, Achenbach T, Kirch A, Reineke S. In-plane oxygen diffusion measurements in polymer films using time-resolved imaging of programmable luminescent tags. Sci Rep 2024; 14:5826. [PMID: 38461364 PMCID: PMC11319630 DOI: 10.1038/s41598-024-56237-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 03/04/2024] [Indexed: 03/11/2024] Open
Abstract
Oxygen diffusion properties in thin polymer films are key parameters in industrial applications from food packaging, over medical encapsulation to organic semiconductor devices and have been continuously investigated in recent decades. The established methods have in common that they require complex pressure-sensitive setups or vacuum technology and usually do not come without surface effects. In contrast, this work provides a low-cost, precise and reliable method to determine the oxygen diffusion coefficient D in bulk polymer films based on tracking the phosphorescent pattern of a programmable luminescent tag over time. Our method exploits two-dimensional image analysis of oxygen-quenched organic room-temperature phosphors in a host polymer with high spatial accuracy. It avoids interface effects and accounts for the photoconsumption of oxygen. As a role model, the diffusion coefficients of polystyrene glasses with molecular weights between 13k and 350k g/mol are determined to be in the range of (0.8-1.5) × 10-7 cm2/s, which is in good agreement with previously reported values. We finally demonstrate the reduction of the oxygen diffusion coefficient in polystyrene by one quarter upon annealing above its glass transition temperature.
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Affiliation(s)
- Richard Kantelberg
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics, Technische Universität Dresden, Nöthnitzer Straße 61, 01187, Dresden, Germany
| | - Tim Achenbach
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics, Technische Universität Dresden, Nöthnitzer Straße 61, 01187, Dresden, Germany
| | - Anton Kirch
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics, Technische Universität Dresden, Nöthnitzer Straße 61, 01187, Dresden, Germany
- The Organic Photonics and Electronics Group, Department of Physics, Umeå University, 90187, Umeå, Sweden
| | - Sebastian Reineke
- Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics, Technische Universität Dresden, Nöthnitzer Straße 61, 01187, Dresden, Germany.
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2
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Fratto BE, Culver EL, Davis G, Deans R, Goods JB, Hwang S, Keller NK, Lawrence JA, Petty AR, Swager TM, Walish JJ, Zhu Z, Cox JR. Leveraging a smartphone to perform time-gated luminescence measurements. PLoS One 2023; 18:e0293740. [PMID: 37903097 PMCID: PMC10615318 DOI: 10.1371/journal.pone.0293740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/18/2023] [Indexed: 11/01/2023] Open
Abstract
Empowered by advanced on-board sensors, high-performance optics packages and ever-increasing computational power, smartphones have democratized data generation, collection, and analysis. Building on this capacity, many platforms have been developed to enable its use as an optical sensing platform for colorimetric and fluorescence measurements. In this paper, we report the ability to enable a smartphone to perform laboratory quality time-resolved analysis of luminescent samples via the exploitation of the rolling shutter mechanism of the native CMOS imager. We achieve this by leveraging the smartphone's standard image capture applications, commercially available image analysis software, and housing the device within a UV-LED containing case. These low-cost modifications enable us to demonstrate the smartphone's analytical potential by performing tasks ranging from authentication and encryption to the interrogation of packaging, compounds, and physical phenomena. This approach underscores the power of repurposing existing technologies to extend the reach and inclusivity of scientific exploration, opening new avenues for data collection and analysis.
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Affiliation(s)
- Brian E. Fratto
- C2Sense, Inc., Watertown, Massachusetts, United States of America
| | - Emma L. Culver
- C2Sense, Inc., Watertown, Massachusetts, United States of America
| | - Gabriel Davis
- C2Sense, Inc., Watertown, Massachusetts, United States of America
| | - Robert Deans
- C2Sense, Inc., Watertown, Massachusetts, United States of America
| | - John B. Goods
- C2Sense, Inc., Watertown, Massachusetts, United States of America
| | - Sean Hwang
- C2Sense, Inc., Watertown, Massachusetts, United States of America
| | - Nicole K. Keller
- C2Sense, Inc., Watertown, Massachusetts, United States of America
| | - John A. Lawrence
- C2Sense, Inc., Watertown, Massachusetts, United States of America
| | | | - Timothy M. Swager
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Joseph J. Walish
- C2Sense, Inc., Watertown, Massachusetts, United States of America
| | - Zhengguo Zhu
- C2Sense, Inc., Watertown, Massachusetts, United States of America
| | - Jason R. Cox
- C2Sense, Inc., Watertown, Massachusetts, United States of America
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3
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Dalfen I, Borisov SM. Porous matrix materials in optical sensing of gaseous oxygen. Anal Bioanal Chem 2022; 414:4311-4330. [PMID: 35352161 PMCID: PMC9142480 DOI: 10.1007/s00216-022-04014-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 02/17/2022] [Accepted: 03/08/2022] [Indexed: 11/26/2022]
Abstract
The review provides comparison of porous materials that act as a matrix for luminescent oxygen indicators. These include silica-gels, sol–gel materials based on silica and organically modified silica (Ormosils), aerogels, electrospun polymeric nanofibers, metal–organic frameworks, anodized alumina, and various other microstructured sensor matrices. The influence of material structure and composition on the efficiency of oxygen quenching and dynamic response times is compared and the advantages and disadvantages of the materials are summarized to give a guide for design and practical application of sensors with desired sensitivity and response time.
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Affiliation(s)
- I Dalfen
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria
| | - S M Borisov
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria.
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4
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Tay HM, Goddard EJ, Hua C. Three-dimensional Cd( ii) porphyrin metal–organic frameworks for the colorimetric sensing of Electron donors. CrystEngComm 2022. [DOI: 10.1039/d2ce00103a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Three MOFs with metalloporphyrin lined, large square 1D channels were used as colorimetric sensors for electron donors. Exposure to amine vapours caused a redshift of the Soret absorption bands of the metalloporphyrin.
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Affiliation(s)
- Hui Min Tay
- School of Chemistry, The University of Melbourne, Parkville, Victoria, 3010, Australia
- Department of Chemistry, The University of Oxford, OX1 3TA, UK
| | - Emily J. Goddard
- School of Chemistry, The University of Melbourne, Parkville, Victoria, 3010, Australia
- Department of Chemistry, The University of Sheffield, S10 2TN, UK
| | - Carol Hua
- School of Chemistry, The University of Melbourne, Parkville, Victoria, 3010, Australia
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria, 3216, Australia
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5
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Tuning the Sensitivity and Dynamic Range of Optical Oxygen Sensing Films by Blending Various Polymer Matrices. BIOSENSORS 2021; 12:bios12010005. [PMID: 35049633 PMCID: PMC8773664 DOI: 10.3390/bios12010005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 11/16/2022]
Abstract
In this work, eight different types of optical oxygen sensing films were prepared by impregnating indicator and matrix solution on the surface of a polypropylene microporous filter membrane. The polymer matrix of the sensing films was ethyl cellulose (EC), polymethyl methacrylate (PMMA), and their blends with different mixing ratios. Scanning electron microscopy (SEM), laser confocal microscopy, and fluorescence spectrometer were used to investigate the morphologies and optical properties of the sensing films. Phase delay measurements under different oxygen partial pressures (PO2) and temperatures were applied to investigate the analytical performances of the sensing film for gaseous O2 monitoring. Results show that the response time of all the sensing films was extremely fast. The sensitivities and dynamic ranges of the sensing films with the blended polymer matrix were separately decreased and increased as the EC/PMMA ratio decreased, and the S-V curve of the sensing films blended with equal content of EC and PMMA exhibited good linearity under different temperatures, showing a promising prospect in practical application.
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6
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Koren K, Zieger SE. Optode Based Chemical Imaging-Possibilities, Challenges, and New Avenues in Multidimensional Optical Sensing. ACS Sens 2021; 6:1671-1680. [PMID: 33905234 DOI: 10.1021/acssensors.1c00480] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Seeing is believing, as the saying goes, and optical sensors (so-called optodes) are tools that can make chemistry visible. Optodes react reversibly and quickly (seconds to minutes) to changing analyte concentrations, enabling the spatial and temporal visualization of an analyte in complex environments. By being available as planar sensor foils or in the form of nano- or microparticles, optodes are flexible tools suitable for a wide array of applications. The steadily grown applications of in particular oxygen (O2) and pH optodes in fields as diverse as medical, environmental, or material sciences is proof for the large demand of optode based chemical imaging. Nevertheless, the full potential of this technology is not exhausted yet, challenges have to be overcome, and new avenues wait to be taken. Within this Perspective, we look at where the field currently stands, highlight several successful examples of optode based chemical imaging and ask what it will take to advance current state-of-the-art technology. It is our intention to point toward some potential blind spots and to inspire further developments.
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Affiliation(s)
- Klaus Koren
- Aarhus University Centre for Water Technology, Department of Biology, Section for Microbiology, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark
| | - Silvia E. Zieger
- Aarhus University Centre for Water Technology, Department of Biology, Section for Microbiology, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark
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7
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Bacterial Respiration Used as a Proxy to Evaluate the Bacterial Load in Cooling Towers. SENSORS 2020; 20:s20216398. [PMID: 33182471 PMCID: PMC7665125 DOI: 10.3390/s20216398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/26/2020] [Accepted: 11/05/2020] [Indexed: 11/17/2022]
Abstract
Evaporative cooling towers to dissipate excess process heat are essential installations in a variety of industries. The constantly moist environment enables substantial microbial growth, causing both operative challenges (e.g., biocorrosion) as well as health risks due to the potential aerosolization of pathogens. Currently, bacterial levels are monitored using rather slow and infrequent sampling and cultivation approaches. In this study, we describe the use of metabolic activity, namely oxygen respiration, as an alternative measure of bacterial load within cooling tower waters. This method is based on optical oxygen sensors that enable an accurate measurement of oxygen consumption within a closed volume. We show that oxygen consumption correlates with currently used cultivation-based methods (R2 = 0.9648). The limit of detection (LOD) for respiration-based bacterial quantification was found to be equal to 1.16 × 104 colony forming units (CFU)/mL. Contrary to the cultivation method, this approach enables faster assessment of the bacterial load with a measurement time of just 30 min compared to 48 h needed for cultivation-based measurements. Furthermore, this approach has the potential to be integrated and automated. Therefore, this method could contribute to more robust and reliable monitoring of bacterial contamination within cooling towers and subsequently increase operational stability and reduce health risks.
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8
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Akram M, Akhtar MH, Irfan M, Tian Y. Polymer matrix: A good substrate material for oxygen probes used in pressure sensitive paints. Adv Colloid Interface Sci 2020; 283:102240. [PMID: 32858409 DOI: 10.1016/j.cis.2020.102240] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 11/30/2022]
Abstract
Over the past few years, surface pressure measurement has fundamental importance in many areas, particularly, aerodynamic research. Conventional methods involve pressure taps, but due to the nature of these pressure taps, only pressure information of isolated points on model surface is available, which limit their applications in aerodynamics studies. Recently the newly developed approach, pressure sensitive paint (PSP) has revolutionized such pressure measurements and various PSP materials have been developed for aerodynamics research. Hence, the main focus of this review is to study the interactions of polymers with different oxygen probes and polymeric role as supporting material in the maturation of PSP. In this review, the selected PSP materials are categorically elucidated in terms of their advantages and limitations to give a fair insight about their applicability. Further, we have summarized and articulated such particular optical oxygen sensing materials either that have been used as PSP or have potential to be used as PSP materials.
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Affiliation(s)
- Muhammad Akram
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad (CUI), Lahore Campus, 54000, Pakistan.
| | - Mahmood Hassan Akhtar
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad (CUI), Lahore Campus, 54000, Pakistan
| | - Muhammad Irfan
- Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad (CUI), Lahore Campus, 54000, Pakistan
| | - Yanqing Tian
- Department of Materials Science and Engineering, Southern University of Science and Technology, No. 1088, Xueyuan Rd., Xili, Nanshan District, Shenzhen, Guangdong 518055, China.
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9
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Duong HD, Sohn OJ, Rhee JI. Development of a Ratiometric Fluorescent Glucose Sensor Using an Oxygen-Sensing Membrane Immobilized with Glucose Oxidase for the Detection of Glucose in Tears. BIOSENSORS-BASEL 2020; 10:bios10080086. [PMID: 32751236 PMCID: PMC7459645 DOI: 10.3390/bios10080086] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 01/23/2023]
Abstract
Glucose concentration is an important parameter in biomedicine since glucose is involved in many metabolic pathways in organisms. Many methods for glucose detection have been developed for use in various applications, particularly in the field of healthcare in diabetics. In this study, ratiometric fluorescent glucose-sensing membranes were fabricated based on the oxygen levels consumed in the glucose oxidation reaction under the catalysis of glucose oxidase (GOD). The oxygen concentration was measured through the fluorescence quenching effect of an oxygen-sensitive fluorescent dye like platinum meso-tetra (pentafluorophenyl) porphyrin (PtP) by oxygen molecules. Coumarin 6 (C6) was used as a reference dye in the ratiometric fluorescence measurements. The glucose-sensing membrane consisted of two layers: The first layer was the oxygen-sensing membrane containing polystyrene particles (PS) doped with PtP and C6 (e.g., PS@C6^PtP) in a sol–gel matrix of aminopropyltrimethoxysilane and glycidoxypropyltrimethoxysilane (GA). The second layer was made by immobilizing GOD onto one of three supporting polymers over the first layer. These glucose-sensing membranes were characterized in terms of their response, reversibility, interferences, and stability. They showed a wide detection range to glucose concentration in the range of 0.1 to 10 mM, but high sensitivity with a linear detection range of 0.1 to 2 mM glucose. This stable and sensitive ratiometric fluorescent glucose biosensor provides a reliable way to determine low glucose concentrations in blood serum by measuring tear glucose.
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Affiliation(s)
- Hong Dinh Duong
- School of Chemical Engineering and Research Center for Biophotonics, Chonnam National University, Gwangju 61186, Korea;
| | | | - Jong Il Rhee
- School of Chemical Engineering and Research Center for Biophotonics, Chonnam National University, Gwangju 61186, Korea;
- Correspondence:
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10
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Melnikov PV, Naumova AO, Alexandrovskaya AY, Zaitsev NK. Optimizing Production Conditions for a Composite Optical Oxygen Sensor Using Mesoporous SiO2. ACTA ACUST UNITED AC 2019. [DOI: 10.1134/s1995078018060083] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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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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12
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Mastnak T, Lobnik A, Mohr GJ, Finšgar M. Indicator Layers Based on Ethylene-Vinyl Acetate Copolymer (EVA) and Dicyanovinyl Azobenzene Dyes for Fast and Selective Evaluation of Vaporous Biogenic Amines. SENSORS (BASEL, SWITZERLAND) 2018; 18:E4361. [PMID: 30544695 PMCID: PMC6308792 DOI: 10.3390/s18124361] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/04/2018] [Accepted: 12/06/2018] [Indexed: 12/26/2022]
Abstract
The article presents naked-eye methods for fast, sensitive, and selective detection of isopentylamine and cadaverine vapours based on 4-N,N-dioctylamino-4'-dicyanovinylazobenzene (CR-528) and 4-N,N-dioctylamino-2'-nitro-4'-dicyanovinylazobenzene (CR-555) dyes immobilized in ethylene-vinyl acetate copolymer (EVA). The reaction of CR-528/EVA and CR-555/EVA indicator layers with isopentylamine vapours caused a vivid colour change from pink/purple to yellow/orange-yellow. Additionally, CR-555/EVA showed colour changes upon exposure to cadaverine. The colour changes were analysed by ultraviolet⁻visible (UV/VIS) molecular absorption spectroscopy for amine quantification, and the method was partially validated for the detection limit, sensitivity, and linear concentration range. The lowest detection limits were reached with CR-555/EVA indicator layers (0.41 ppm for isopentylamine and 1.80 ppm for cadaverine). The indicator layers based on EVA and dicyanovinyl azobenzene dyes complement the existing library of colorimetric probes for the detection of biogenic amines and show great potential for food quality control.
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Affiliation(s)
- Tinkara Mastnak
- Institute for Environmental Protection and Sensors, Beloruska 7, SI-2000 Maribor, Slovenia.
- Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia.
| | - Aleksandra Lobnik
- Institute for Environmental Protection and Sensors, Beloruska 7, SI-2000 Maribor, Slovenia.
- Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia.
| | - Gerhard J Mohr
- Joanneum Research Forschungsgesellschaft mbH-Materials, Franz-Pichler-Straße 30, A-8160 Weiz, Austria.
| | - Matjaž Finšgar
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia.
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13
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Filho AFDM, Gewehr PM, Maia JM, Jakubiak DR. Polystyrene Oxygen Optodes Doped with Ir(III) and Pd(II) meso-Tetrakis(pentafluorophenyl)porphyrin Using an LED-Based High-Sensitivity Phosphorimeter. SENSORS (BASEL, SWITZERLAND) 2018; 18:E1953. [PMID: 29914139 PMCID: PMC6021951 DOI: 10.3390/s18061953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 06/04/2018] [Accepted: 06/13/2018] [Indexed: 12/27/2022]
Abstract
This paper presents a gaseous oxygen detection system based on time-resolved phosphorimetry (time-domain), which is used to investigate O2 optical transducers. The primary sensing elements were formed by incorporating iridium(III) and palladium(II) meso-tetrakis(pentafluorophenyl)porphyrin complexes (IrTFPP-CO-Cl and PdTFPP) in polystyrene (PS) solid matrices. Probe excitation was obtained using a violet light-emitting diode (LED) (low power), and the resulting phosphorescence was detected by a high-sensitivity compact photomultiplier tube. The detection system performance and the preparation of the transducers are presented along with their optical properties, phosphorescence lifetimes, calibration curves and photostability. The developed lifetime measuring system showed a good signal-to-noise ratio, and reliable results were obtained from the optodes, even when exposed to moderate levels of O2. The new IrTFPP-CO-Cl membranes exhibited room temperature phosphorescence and moderate sensitivity: <τ0>/<τ21%> ratio of ≈6. A typically high degree of dynamic phosphorescence quenching was observed for the traditional indicator PdTFPP: <τ0>/<τ21%> ratio of ≈36. Pulsed-source time-resolved phosphorimetry combined with a high-sensitivity photodetector can offer potential advantages such as: (i) major dynamic range, (ii) extended temporal resolution (Δτ/Δ[O2]) and (iii) high operational stability. IrTFPP-CO-Cl immobilized in polystyrene is a promising alternative for O2 detection, offering adequate photostability and potentially mid-range sensitivity over Pt(II) and Pd(II) metalloporphyrins.
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Affiliation(s)
| | - Pedro M Gewehr
- Graduate Program in Electrical and Computer Engineering (CPGEI), Federal University of Technology-Paraná (UTFPR), Curitiba 80230-901, Brazil.
| | - Joaquim M Maia
- Graduate Program in Electrical and Computer Engineering (CPGEI), Federal University of Technology-Paraná (UTFPR), Curitiba 80230-901, Brazil.
| | - Douglas R Jakubiak
- Department of Electronics (DAELN), Federal University of Technology-Paraná (UTFPR), Curitiba 80230-901, Brazil.
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14
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Electrospun nanofibers and spin coated films prepared from side-chain copolymers with chemically bounded platinum (II) porphyrin moieties for oxygen sensing and pressure sensitive paints. Talanta 2018; 188:124-134. [PMID: 30029354 DOI: 10.1016/j.talanta.2018.05.067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/12/2018] [Accepted: 05/19/2018] [Indexed: 01/30/2023]
Abstract
Pressure sensitive paints (PSP) containing oxygen probes were primarily used to measure air pressure. In this perspective, a polymerizable methacrylate-derived tetraphenylporphinato platinum(II) (PtTPP-MA) monomer was copolymerized with acrylic/vinyl monomers to produce four different copolymers. Octafluoropentyl methacrylate (OCFPM) and pentafluorophenyl acrylate (PFPA) were used as fluorinated monomers. Methyl methacrylate (MMA) and styrene (S) were used as non-fluorinated monomers. The structures and physical properties of the polymers were confirmed by 1H NMR, 19F NMR, GPC, and DSC. Experimental conditions were optimized to get fine nanofibers. Pressure sensing electrospun membranes and spin coated films were fabricated. Nanofibers showed fast response and good sensitivity towards gaseous oxygen. The influence of types of substrate and polymer natures on response time, oxygen sensitivity, and pressure responses were deliberated. Among our synthesized copolymers, poly(PS-co-PFPA-co-OCFPM-co-PtTPPMA) (Polymer P3) showed fast response time and good pressure sensitivity both as spin coated films and nanofibers.
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15
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Moßhammer M, Strobl M, Kühl M, Klimant I, Borisov SM, Koren K. Design and Application of an Optical Sensor for Simultaneous Imaging of pH and Dissolved O2 with Low Cross-Talk. ACS Sens 2016. [DOI: 10.1021/acssensors.6b00071] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maria Moßhammer
- Marine
Biological Section, Department of Biology, University of Copenhagen, 3000 Helsingør, Denmark
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, 8010 Graz, Austria
| | - Martin Strobl
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, 8010 Graz, Austria
| | - Michael Kühl
- Marine
Biological Section, Department of Biology, University of Copenhagen, 3000 Helsingør, Denmark
- Plant
Functional Biology and Climate Change Cluster, University of Technology Sydney, Ultimo, New South Wales 2007, Australia
| | - Ingo Klimant
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, 8010 Graz, Austria
| | - Sergey M. Borisov
- Institute
of Analytical Chemistry and Food Chemistry, Graz University of Technology, 8010 Graz, Austria
| | - Klaus Koren
- Marine
Biological Section, Department of Biology, University of Copenhagen, 3000 Helsingør, Denmark
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16
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Dmitriev RI, O’Donnell N, Papkovsky DB. Metallochelate Coupling of Phosphorescent Pt-Porphyrins to Peptides, Proteins, and Self-Assembling Protein Nanoparticles. Bioconjug Chem 2016; 27:439-45. [DOI: 10.1021/acs.bioconjchem.5b00535] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Ruslan I. Dmitriev
- School of Biochemistry and
Cell Biology, ABCRF, University College Cork, Cork, Ireland
| | - Neil O’Donnell
- School of Biochemistry and
Cell Biology, ABCRF, University College Cork, Cork, Ireland
| | - Dmitri B. Papkovsky
- School of Biochemistry and
Cell Biology, ABCRF, University College Cork, Cork, Ireland
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17
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Santner J, Larsen M, Kreuzeder A, Glud RN. Two decades of chemical imaging of solutes in sediments and soils--a review. Anal Chim Acta 2015; 878:9-42. [PMID: 26002324 DOI: 10.1016/j.aca.2015.02.006] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 02/03/2015] [Accepted: 02/05/2015] [Indexed: 01/08/2023]
Abstract
The increasing appreciation of the small-scale (sub-mm) heterogeneity of biogeochemical processes in sediments, wetlands and soils has led to the development of several methods for high-resolution two-dimensional imaging of solute distribution in porewaters. Over the past decades, localised sampling of solutes (diffusive equilibration in thin films, diffusive gradients in thin films) followed by planar luminescent sensors (planar optodes) have been used as analytical tools for studies on solute distribution and dynamics. These approaches have provided new conceptual and quantitative understanding of biogeochemical processes regulating the distribution of key elements and solutes including O2, CO2, pH, redox conditions as well as nutrient and contaminant ion species in structurally complex soils and sediments. Recently these methods have been applied in parallel or integrated as so-called sandwich sensors for multianalyte measurements. Here we review the capabilities and limitations of the chemical imaging methods that are currently at hand, using a number of case studies, and provide an outlook on potential future developments for two-dimensional solute imaging in soils and sediments.
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Affiliation(s)
- Jakob Santner
- Rhizosphere Ecology and Biogeochemistry Group, Department of Forest and Soil Sciences, Institute of Soil Research, University of Natural Resources and Life Sciences Vienna, Konrad Lorenz-Strasse 24, 3430 Tulln, Austria.
| | - Morten Larsen
- Nordic Center for Earth Evolution (NordCEE), University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark
| | - Andreas Kreuzeder
- Rhizosphere Ecology and Biogeochemistry Group, Department of Forest and Soil Sciences, Institute of Soil Research, University of Natural Resources and Life Sciences Vienna, Konrad Lorenz-Strasse 24, 3430 Tulln, Austria
| | - Ronnie N Glud
- Nordic Center for Earth Evolution (NordCEE), University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark; Scottish Marine Institute, Scottish Association for Marine Science, Oban, Scotland, PA37 1QA, UK; Greenland Climate Research Centre (CO Greenland Institute of Natural Resources), Kivioq 2, Box 570, 3900 Nuuk, Greenland; Arctic Research Centre, Aarhus University, 8000 Aarhus, Denmark
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18
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Wang XD, Wolfbeis OS. Optical methods for sensing and imaging oxygen: materials, spectroscopies and applications. Chem Soc Rev 2014; 43:3666-761. [PMID: 24638858 DOI: 10.1039/c4cs00039k] [Citation(s) in RCA: 556] [Impact Index Per Article: 55.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We review the current state of optical methods for sensing oxygen. These have become powerful alternatives to electrochemical detection and in the process of replacing the Clark electrode in many fields. The article (with 694 references) is divided into main sections on direct spectroscopic sensing of oxygen, on absorptiometric and luminescent probes, on polymeric matrices and supports, on additives and related materials, on spectroscopic schemes for read-out and imaging, and on sensing formats (such as waveguide sensing, sensor arrays, multiple sensors and nanosensors). We finally discuss future trends and applications and summarize the properties of the most often used indicator probes and polymers. The ESI† (with 385 references) gives a selection of specific applications of such sensors in medicine, biology, marine and geosciences, intracellular sensing, aerodynamics, industry and biotechnology, among others.
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Affiliation(s)
- Xu-dong Wang
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, D-93040 Regensburg, Germany.
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19
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Toncelli C, Arzhakova OV, Dolgova A, Volynskii AL, Bakeev NF, Kerry JP, Papkovsky DB. Oxygen-Sensitive Phosphorescent Nanomaterials Produced from High-Density Polyethylene Films by Local Solvent-Crazing. Anal Chem 2014; 86:1917-23. [DOI: 10.1021/ac404072z] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Claudio Toncelli
- University College Cork, Biochemistry Department, Cavanagh Pharmacy Building, Cork, Ireland
| | - Olga V. Arzhakova
- Department
of Polymer Chemistry, Moscow State University, Leninskie Gory, Moscow, Russian Federation
| | - Alla Dolgova
- Department
of Polymer Chemistry, Moscow State University, Leninskie Gory, Moscow, Russian Federation
| | - Aleksandr L. Volynskii
- Department
of Polymer Chemistry, Moscow State University, Leninskie Gory, Moscow, Russian Federation
| | - Nikolai F. Bakeev
- Department
of Polymer Chemistry, Moscow State University, Leninskie Gory, Moscow, Russian Federation
| | - Joe P. Kerry
- Department
of Food Science and Nutrition, University College Cork, Cork, Ireland
| | - Dmitri B. Papkovsky
- University College Cork, Biochemistry Department, Cavanagh Pharmacy Building, Cork, Ireland
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20
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Cash KJ, Clark HA. Phosphorescent nanosensors for in vivo tracking of histamine levels. Anal Chem 2013; 85:6312-8. [PMID: 23767828 DOI: 10.1021/ac400575u] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Continuously tracking bioanalytes in vivo will enable clinicians and researchers to profile normal physiology and monitor diseased states. Current in vivo monitoring system designs are limited by invasive implantation procedures and biofouling, limiting the utility of these tools for obtaining physiologic data. In this work, we demonstrate the first success in optically tracking histamine levels in vivo using a modular, injectable sensing platform based on diamine oxidase and a phosphorescent oxygen nanosensor. Our new approach increases the range of measurable analytes by combining an enzymatic recognition element with a reversible nanosensor capable of measuring the effects of enzymatic activity. We use these enzyme nanosensors (EnzNS) to monitor the in vivo histamine dynamics as the concentration rapidly increases and decreases due to administration and clearance. The EnzNS system measured kinetics that match those reported from ex vivo measurements. This work establishes a modular approach to in vivo nanosensor design for measuring a broad range of potential target analytes. Simply replacing the recognition enzyme, or both the enzyme and nanosensor, can produce a new sensor system capable of measuring a wide range of specific analytical targets in vivo.
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Affiliation(s)
- Kevin J Cash
- Department of Pharmaceutical Sciences, Northeastern University, Boston, Massachusetts 02115, USA
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