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Pramanik C, Jana A, Brandao P, Aher A, Bera P, Khatua S, Majumdar S, Mandal B, Kumar Manna S, Bera P. Phenolate-thiazole based reversible "turn-on" chemosensor for the selective detection of carbonate anion: X-ray crystallography, DFT/TDFT, and cell study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 315:124233. [PMID: 38583394 DOI: 10.1016/j.saa.2024.124233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 03/16/2024] [Accepted: 03/30/2024] [Indexed: 04/09/2024]
Abstract
A new phenolate-thiazole derivative (L) has been synthesized and structurally characterized.The chemo-sensing activity of L is detected by the naked eye for the aqueous carbonate anion in the pH range of 4 to 8. The selective 'turn-on' fluorescence occurs through the formation of a stable intermediate L∙CO32-(1) following the PET mechanism. The limit of detection (LOD) is found 0.18 µM based on the absorbance-based assay.The quinonoid form of bromophenol unit binds strongly with CO32- through thiazole nitrogen and hydrazinic nitrogen. Further, the selective holding of CO32- anion over other planar tetranuclear anions (e.g., SO32-, NO3-) happens with several intra and intermolecular hydrogen bonds as envisaged by the DFT/TDFT study. The formation mechanism of L∙CO32- is proposed based on experimental and theoretical studies. The biological experiments (MTT and cell imaging)reveal the non-cytotoxicity nature of L and the biocompatible uptake of L mostly in the cytoplasm at physiological pH.
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Affiliation(s)
- Chandana Pramanik
- Post Graduate Department of Chemistry, Panskura Banamali College (Autonomous) (Vidyasagar University), Panskura R.S, Midnapore (East), West Bengal 721152, India; Department of Chemistry, Dinabandhu Andrews College, Kolkata, West Bengal 700 084, India
| | - Abhimanyu Jana
- Post Graduate Department of Chemistry, Panskura Banamali College (Autonomous) (Vidyasagar University), Panskura R.S, Midnapore (East), West Bengal 721152, India
| | - Paula Brandao
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Abhishek Aher
- Centre for DNA Fingerprinting & Diagnostics (CDFD), Hyderabad, Telangana 500 039, India
| | - Pradip Bera
- Post Graduate Department of Chemistry, Panskura Banamali College (Autonomous) (Vidyasagar University), Panskura R.S, Midnapore (East), West Bengal 721152, India; Department of Chemistry, Kandi Raj College, Murshidabad, West Bengal 742137, India
| | - Sabyasachi Khatua
- Department of Chemistry, Y.S. Palpara College, Palpara, Midnapore (East), West Bengal 721458, India
| | - Sourav Majumdar
- Department of Chemistry, Kandi Raj College, Murshidabad, West Bengal 742137, India
| | - Basudev Mandal
- Post Graduate Department of Chemistry, Panskura Banamali College (Autonomous) (Vidyasagar University), Panskura R.S, Midnapore (East), West Bengal 721152, India; Department of Chemistry, Shahid Matangini Hazra Govt. College for Women, Midnapore (East), West Bengal 721 649, India
| | - Sunil Kumar Manna
- Centre for DNA Fingerprinting & Diagnostics (CDFD), Hyderabad, Telangana 500 039, India
| | - Pulakesh Bera
- Post Graduate Department of Chemistry, Panskura Banamali College (Autonomous) (Vidyasagar University), Panskura R.S, Midnapore (East), West Bengal 721152, India.
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Zhang Q, Meyerhoff ME. Nitric Oxide Release for Enhanced Biocompatibility and Analytical Performance of Implantable Electrochemical Sensors. ELECTROANAL 2021. [DOI: 10.1002/elan.202100174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Qi Zhang
- Department of Chemistry University of Michigan Ann Arbor MI 48109 USA
| | - Mark E. Meyerhoff
- Department of Chemistry University of Michigan Ann Arbor MI 48109 USA
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3
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Karuk Elmas SN, Karagoz A, Aydin D, Arslan FN, Sadi G, Yilmaz I. Fabrication and sensing properties of phenolphthalein based colorimetric and turn-on fluorogenic probe for CO 32- detection and its living-cell imaging application. Talanta 2021; 226:122166. [PMID: 33676708 DOI: 10.1016/j.talanta.2021.122166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 01/24/2021] [Accepted: 01/27/2021] [Indexed: 11/26/2022]
Abstract
Herein, an easy assembled colorimetric and ''turn-on'' fluorescent sensor (probe P4SC) based on phenolphthalein was developed for carbonate ion (CO32-) sensing in a mixture of EtOH/H2O (v/v, 80/20, pH = 7, Britton-Robinson buffer) media. The probe P4SC demonstrated high sensitive and selective monitoring toward CO32- over other competitive anions. Interaction of CO32- with the probe P4SC resulted in a significant increment in emission intensity at λem = 498 nm (λex = 384 nm) due to the strategy of blocking the photo induced electron transfer (PET) mechanism. 1H NMR titration and Job's methods, as well as the theoretical study were carried out to support the probable stoichiometry of the reaction (1:2) between P4SC and CO32-. The binding constant of the probe P4SC with CO32- was calculated as 2.56 × 1010 M-2. The probe P4SC providing rapid response time (~0.5 min) with a satisfactorily low detection limit (14.7 nM) may be useful as a valuable realistic sensor. The imaging studies on the liver cancer cells (HepG2) shows the great potential of the probe P4SC for the sensation of intracellular CO32- anions. Furthermore, the satisfactory recovery and RSD values obtained for water application confirming that the probe P4SC could be applied to sensing of CO32- ion.
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Affiliation(s)
- Sukriye Nihan Karuk Elmas
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
| | - Abdurrahman Karagoz
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
| | - Duygu Aydin
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
| | - Fatma Nur Arslan
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
| | - Gokhan Sadi
- Department of Biology, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
| | - Ibrahim Yilmaz
- Department of Chemistry, Kamil Ozdag Science Faculty, Karamanoglu Mehmetbey University, 70100, Karaman, Turkey.
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Darroudi M, Mohammadi Ziarani G, Bahar S, Ghasemi JB, Badiei A. Lansoprazole-Based Colorimetric Chemosensor for Efficient Binding and Sensing of Carbonate Ion: Spectroscopy and DFT Studies. Front Chem 2021; 8:626472. [PMID: 33604329 PMCID: PMC7884336 DOI: 10.3389/fchem.2020.626472] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 12/10/2020] [Indexed: 11/13/2022] Open
Abstract
The new benzimidazole based receptor Lansoprazole has been used to detect carbonate anion by naked-eye and Uv-Vis spectroscopy. This receptor revealed visual changes withCO 3 2 - anion in ethanol. No detectable color changes were observed upon the addition of any other tested anions. The lansoprazole chemosensor selectively recognizesCO 3 2 - ion over the other interference anions in the ethanol, followed by deprotonation and reflected 1:1 complex formation between the receptor and the carbonate ion. Lansoprazole exhibits splendid selectivity toward carbonate ion via a visible color change from colorless to yellow with a detection limit of 57 μM. The binding mode ofCO 3 2 - to receptor L is supported by Density Functional Theory calculation. Moreover, this receptor shows a practical visible colorimetric test strip for the detection of carbonate ions. The transition states calculation demonstrates the occurrence of reaction from L to L-CO 3 2 - after overcoming an energy barrier of 10.1 kcal/mol, and there is considerable interaction energy between L andCO 3 2 - (94.9 kJ/mol), both of which confirmed that receptor L has high sensitivity and selectivity to the carbonate ion. The theoretical studies were performed to acquire an electronic description of the complexation mechanism byCO 3 2 - as well as to study bonding and structure in the complex. The optimized structures and binding mechanisms were supported with a high correlation and agreement by spectroscopy and DFT calculations.
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Affiliation(s)
- Mahdieh Darroudi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
| | | | - Shahriyar Bahar
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
| | - Jahan B. Ghasemi
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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5
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Zhang Q, Murray GP, Hill JE, Harvey SL, Rojas-Pena A, Choi J, Zhou Y, Bartlett RH, Meyerhoff ME. Enhanced Hemocompatibility and In Vivo Analytical Accuracy of Intravascular Potentiometric Carbon Dioxide Sensors via Nitric Oxide Release. Anal Chem 2020; 92:13641-13646. [PMID: 32955253 DOI: 10.1021/acs.analchem.0c02979] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this letter, the innate ability of nitric oxide (NO) to inhibit platelet activation/adhesion/thrombus formation is employed to improve the hemocompatibility and in vivo accuracy of an intravascular (IV) potentiometric PCO2 (partial pressure of carbon dioxide) sensor. The catheter-type sensor is fabricated by impregnating a segment of dual lumen silicone tubing with a proton ionophore, plasticizer, and lipophilic cation-exchanger. Subsequent filling of bicarbonate and strong buffer solutions and placement of Ag/AgCl reference electrode wires within each lumen, respectively, enables measurement of the membrane potential difference across the inner wall of the tube, with this potential changing as a function of the logarithm of sample PCO2. The dual lumen device is further encapsulated within a S-nitroso-N-acetyl-DL-penicillamine (SNAP)-doped silicone tube that releases physiological levels of NO. The NO releasing sensor exhibits near-Nernstian sensitivity toward PCO2 (slope = 59.31 ± 0.78 mV/decade) and low drift rates (<2 mV/24 h after initial equilibration). In vivo evaluation of the NO releasing sensors, performed in the arteries and veins of anesthetized pigs for 20 h, shows enhanced accuracy (vs non-NO releasing sensors) when benchmarked to measurements of discrete blood samples made with a commercial blood gas analyzer. The accurate, continuous monitoring of blood PCO2 levels achieved with this new IV NO releasing PCO2 sensor configuration could help better manage hospitalized patients in critical care units.
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Affiliation(s)
- Qi Zhang
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Griffin P Murray
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Joseph E Hill
- Department of Surgery, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Stephen L Harvey
- Department of Surgery, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Alvaro Rojas-Pena
- Department of Surgery, University of Michigan, Ann Arbor, Michigan 48109, United States.,Department of Surgery, Section of Transplantation. University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jonathan Choi
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Yang Zhou
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education and School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan 570228, China
| | - Robert H Bartlett
- Department of Surgery, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Mark E Meyerhoff
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
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6
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Monitoring with In Vivo Electrochemical Sensors: Navigating the Complexities of Blood and Tissue Reactivity. SENSORS 2020; 20:s20113149. [PMID: 32498360 PMCID: PMC7308849 DOI: 10.3390/s20113149] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 12/18/2022]
Abstract
The disruptive action of an acute or critical illness is frequently manifest through rapid biochemical changes that may require continuous monitoring. Within these changes, resides trend information of predictive value, including responsiveness to therapy. In contrast to physical variables, biochemical parameters monitored on a continuous basis are a largely untapped resource because of the lack of clinically usable monitoring systems. This is despite the huge testing repertoire opening up in recent years in relation to discrete biochemical measurements. Electrochemical sensors offer one of the few routes to obtaining continuous readout and, moreover, as implantable devices information referable to specific tissue locations. This review focuses on new biological insights that have been secured through in vivo electrochemical sensors. In addition, the challenges of operating in a reactive, biological, sample matrix are highlighted. Specific attention is given to the choreographed host rejection response, as evidenced in blood and tissue, and how this limits both sensor life time and reliability of operation. Examples will be based around ion, O2, glucose, and lactate sensors, because of the fundamental importance of this group to acute health care.
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7
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Cánovas R, Padrell Sánchez S, Parrilla M, Cuartero M, Crespo GA. Cytotoxicity Study of Ionophore-Based Membranes: Toward On-Body and in Vivo Ion Sensing. ACS Sens 2019; 4:2524-2535. [PMID: 31448593 DOI: 10.1021/acssensors.9b01322] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We present the most complete study to date comprising in vitro cytotoxicity tests of ion-selective membranes (ISMs) in terms of cell viability, proliferation, and adhesion assays with human dermal fibroblasts. ISMs were prepared with different types of plasticizers and ionophores to be tested in combination with assays that focus on the medium-term and long-term leaching of compounds. Furthermore, the ISMs were prepared in different configurations considering (i) inner-filling solution-type electrodes, (ii) all-solid-state electrodes based on a conventional drop-cast of the membrane, (iii) peeling after the preparation of a wearable sensor, and (iv) detachment from a microneedle-based sensor, thus covering a wide range of membrane shapes. One of the aims of this study, other than the demonstration of the biocompatibility of various ISMs and materials tested herein, is to create an awareness in the scientific community surrounding the need to perform biocompatibility assays during the very first steps of any sensor development with an intended biomedical application. This will foster meeting the requirements for subsequent on-body application of the sensor and avoiding further problems during massive validations toward the final in vivo use and commercialization of such devices.
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Affiliation(s)
- Rocío Cánovas
- Department of Chemistry, School of Engineering Science in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44 Stockholm, Sweden
| | - Sara Padrell Sánchez
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, and Division of Obstetrics and Gynecology, Karolinska Universitetssjukhuset, SE-141 86 Stockholm, Sweden
| | - Marc Parrilla
- Department of Chemistry, School of Engineering Science in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44 Stockholm, Sweden
| | - María Cuartero
- Department of Chemistry, School of Engineering Science in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44 Stockholm, Sweden
| | - Gastón A. Crespo
- Department of Chemistry, School of Engineering Science in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44 Stockholm, Sweden
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8
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McCabe MM, Hala P, Rojas-Pena A, Lautner-Csorba O, Major TC, Ren H, Bartlett RH, Brisbois EJ, Meyerhoff ME. Enhancing analytical accuracy of intravascular electrochemical oxygen sensors via nitric oxide release using S-nitroso-N-acetyl-penicillamine (SNAP) impregnated catheter tubing. Talanta 2019; 205:120077. [PMID: 31450395 DOI: 10.1016/j.talanta.2019.06.077] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 06/19/2019] [Accepted: 06/20/2019] [Indexed: 12/21/2022]
Abstract
Implantable medical devices are an integral part of primary/critical care. However, these devices carry a high risk for blood clots, caused by platelet aggregation on a foreign body surface. This study focuses on the development of a simplified approach to create nitric oxide (NO) releasing intravascular electrochemical oxygen (O2) sensors with increased biocompatibility and analytical accuracy. The implantable sensors are prepared by embedding S-nitroso-N-acetylpenacillamine (SNAP) as the NO donor molecule in the walls of the catheter type sensors. The SNAP-impregnated catheters were prepared by swelling silicone rubber tubing in a tetrahydrofuran solution containing SNAP. Control and SNAP-impregnated catheters were used to fabricate the Clark-style amperometric PO2 sensors. The SNAP-impregnated sensors release NO under physiological conditions for 18 d as measured by chemiluminescence. The analytical response of the SNAP-impregnated sensors was evaluated in vitro and in vivo. Rabbit and swine models (with sensors placed in both veins and arteries) were used to evaluate the effects on thrombus formation and analytical in vivo PO2 sensing performance. The SNAP-impregnated PO2 sensors were found to more accurately measure PO2 levels in blood continuously (over 7 and 20 h animal experiments) with significantly reduced thrombus formation (as compared to controls) on their surfaces.
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Affiliation(s)
- M M McCabe
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - P Hala
- Department of Surgery, University of Michigan Medical Center, Ann Arbor, MI, USA; Department of Cardiology, Na Homolce Hospital, Prague, Czech Republic; Department of Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - A Rojas-Pena
- Department of Surgery, University of Michigan Medical Center, Ann Arbor, MI, USA
| | - O Lautner-Csorba
- Department of Surgery, University of Michigan Medical Center, Ann Arbor, MI, USA
| | - T C Major
- Department of Surgery, University of Michigan Medical Center, Ann Arbor, MI, USA
| | - H Ren
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - R H Bartlett
- Department of Surgery, University of Michigan Medical Center, Ann Arbor, MI, USA
| | - E J Brisbois
- Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, USA.
| | - M E Meyerhoff
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA.
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Rivera KR, Yokus MA, Erb PD, Pozdin VA, Daniele M. Measuring and regulating oxygen levels in microphysiological systems: design, material, and sensor considerations. Analyst 2019; 144:3190-3215. [PMID: 30968094 PMCID: PMC6564678 DOI: 10.1039/c8an02201a] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
As microfabrication techniques and tissue engineering methods improve, microphysiological systems (MPS) are being engineered that recapitulate complex physiological and pathophysiological states to supplement and challenge traditional animal models. Although MPS provide unique microenvironments that transcend common 2D cell culture, without proper regulation of oxygen content, MPS often fail to provide the biomimetic environment necessary to activate and investigate fundamental pathways of cellular metabolism and sub-cellular level. Oxygen exists in the human body in various concentrations and partial pressures; moreover, it fluctuates dramatically depending on fasting, exercise, and sleep patterns. Regulating oxygen content inside MPS necessitates a sensitive biological sensor to quantify oxygen content in real-time. Measuring oxygen in a microdevice is a non-trivial requirement for studies focused on understanding how oxygen impacts cellular processes, including angiogenesis and tumorigenesis. Quantifying oxygen inside a microdevice can be achieved via an array of technologies, with each method having benefits and limitations in terms of sensitivity, limits of detection, and invasiveness that must be considered and optimized. This article will review oxygen physiology in organ systems and offer comparisons of organ-specific MPS that do and do not consider oxygen microenvironments. Materials used in microphysiological models will also be analyzed in terms of their ability to control oxygen. Finally, oxygen sensor technologies are critically compared and evaluated for use in MPS.
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Affiliation(s)
- Kristina R Rivera
- Joint Department of Biomedical Engineering, North Carolina State University and University of North Carolina at Chapel Hill, 911 Oval Dr., Raleigh, NC 27695, USA.
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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: 84] [Impact Index Per Article: 16.8] [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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11
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Zimmermann P, Weltin A, Urban GA, Kieninger J. Active Potentiometry for Dissolved Oxygen Monitoring with Platinum Electrodes. SENSORS 2018; 18:s18082404. [PMID: 30042309 PMCID: PMC6111276 DOI: 10.3390/s18082404] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 07/16/2018] [Accepted: 07/21/2018] [Indexed: 12/30/2022]
Abstract
Potentiometric oxygen monitoring using platinum as the electrode material was enabled by the combination of conventional potentiometry with active prepolarization protocols, what we call active potentiometry. The obtained logarithmic transfer function is well-suited for the measurement of dissolved oxygen in biomedical applications, as the physiological oxygen concentration typically varies over several decades. We describe the application of active potentiometry in phosphate buffered salt solution at different pH and ion strength. Sensitivity was in the range of 60 mV/dec oxygen concentration; the transfer function deviated from logarithmic behavior for smaller oxygen concentration and higher ion strength of the electrolyte. Long-term stability was demonstrated for 60 h. Based on these measurement results and additional cyclic voltammetry investigations a model is discussed to explain the potential forming mechanism. The described method of active potentiometry is applicable to many different potentiometric sensors possibly enhancing sensitivity or selectivity for a specific parameter.
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Affiliation(s)
- Peter Zimmermann
- Laboratory for Sensors, IMTEK-Department of Microsystems Engineering, University of Freiburg, Georges-Köhler Allee 103, D-79110 Freiburg, Germany.
| | - Andreas Weltin
- Laboratory for Sensors, IMTEK-Department of Microsystems Engineering, University of Freiburg, Georges-Köhler Allee 103, D-79110 Freiburg, Germany.
| | - Gerald A Urban
- Laboratory for Sensors, IMTEK-Department of Microsystems Engineering, University of Freiburg, Georges-Köhler Allee 103, D-79110 Freiburg, Germany.
| | - Jochen Kieninger
- Laboratory for Sensors, IMTEK-Department of Microsystems Engineering, University of Freiburg, Georges-Köhler Allee 103, D-79110 Freiburg, Germany.
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12
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Thimaradka V, Pangannaya S, Mohan M, Trivedi DR. Hydrazinylpyridine based highly selective optical sensor for aqueous source of carbonate ions: Electrochemical and DFT studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 193:330-337. [PMID: 29262381 DOI: 10.1016/j.saa.2017.12.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/11/2017] [Accepted: 12/13/2017] [Indexed: 06/07/2023]
Abstract
A series of new receptors PDZ1-3 based on 2-(arylidenehydrazinyl)pyridines have been designed and synthesized for the detection of biologically and environmentally important ions. The colorimetric detection of CO32- using neutral organic receptor PDZ-1 has been achieved with characteristic visual colour change from yellow to green accompanied by a large redshift of 215nm in absorption maxima. UV-Vis spectroscopic and cyclic voltammetric studies reveal the stoichiometry of binding and electrochemistry of host-guest complex formation. The binding constant was found to be 0.77×104M-2. In addition, electrochemical studies provide an insight into the stability of the complex. DFT studies performed on the PDZ-1 and PDZ-1-CO32- complex reveal the binding mechanism involved in the anion detection process. PDZ-1 is highly selective for carbonate and does not show any colorimetric response towards any other anions or cations, while PDZ-2 and PDZ-3 remain inactive in the ion detection process. The limit of detection (LOD) and limit of quantification (LOQ) of PDZ-1 for carbonate was found to be 0.11mM and 0.36mM respectively. Considerable binding constant and limit of detection make PDZ-1 to be used as a real time sensor for the detection of carbonate in environmental and biological samples.
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Affiliation(s)
- Vikram Thimaradka
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK), Surathkal 575025, Karnataka, India
| | - Srikala Pangannaya
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK), Surathkal 575025, Karnataka, India
| | - Makesh Mohan
- Department of Physics, National Institute of Technology Karnataka (NITK), Surathkal 575025, Karnataka, India
| | - Darshak R Trivedi
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK), Surathkal 575025, Karnataka, India.
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13
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Cha KH, Wang X, Meyerhoff ME. Nitric Oxide Release for Improving Performance of Implantable Chemical Sensors - A Review. APPLIED MATERIALS TODAY 2017; 9:589-597. [PMID: 29520370 PMCID: PMC5837052 DOI: 10.1016/j.apmt.2017.10.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Over the last three decades, there has been extensive interest in developing in vivo chemical sensors that can provide real-time measurements of blood gases (oxygen, carbon dioxide, and pH), glucose/lactate, and potentially other critical care analytes in the blood of hospitalized patients. However, clot formation with intravascular sensors and foreign body response toward sensors implanted subcutaneously can cause inaccurate analytical results. Further, the risk of bacterial infection from any sensor implanted in the human body is another major concern. To solve these issues, the release of an endogenous gas molecule, nitric oxide (NO), from the surface of such sensors has been investigated owing to NO's ability to inhibit platelet activation/adhesion, foreign body response and bacterial growth. This paper summarizes the importance of NO's therapeutic potential for this application and reviews the publications to date that report on the analytical performance of NO release sensors in laboratory testing and/or during in vivo testing.
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Affiliation(s)
- Kyoung Ha Cha
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109-1055, USA
| | - Xuewei Wang
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109-1055, USA
| | - Mark E Meyerhoff
- Department of Chemistry, University of Michigan, 930 N. University Ave., Ann Arbor, MI 48109-1055, USA
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Moon E, Blaauw D, Phillips JD. Infrared Energy Harvesting in Millimeter-Scale GaAs Photovoltaics. IEEE TRANSACTIONS ON ELECTRON DEVICES 2017; 64:4554-4560. [PMID: 29129936 PMCID: PMC5679131 DOI: 10.1109/ted.2017.2746094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The design and characterization of mm-scale GaAs photovoltaic cells are presented and demonstrate highly efficient energy harvesting in the near infrared. Device performance is improved dramatically by optimization of the device structure for the near-infrared spectral region and improving surface and sidewall passivation with ammonium sulfide treatment and subsequent silicon nitride deposition. The power conversion efficiency of a 6.4 mm2 cell under 660 nW/mm2 NIR illumination at 850 nm is greater than 30 %, which is higher than commercial crystalline silicon solar cells under similar illumination conditions. Critical performance limiting factors of sub-mm scale GaAs photovoltaic cells are addressed and compared to theoretical calculations.
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Affiliation(s)
- Eunseong Moon
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109 USA
| | - David Blaauw
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109 USA
| | - Jamie D Phillips
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109 USA
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Moon E, Blaauw D, Phillips JD. Subcutaneous Photovoltaic Infrared Energy Harvesting for Bio-Implantable Devices. IEEE TRANSACTIONS ON ELECTRON DEVICES 2017; 64:2432-2437. [PMID: 29056754 PMCID: PMC5646820 DOI: 10.1109/ted.2017.2681694] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Wireless biomedical implantable devices on the mm-scale enable a wide range of applications for human health, safety, and identification, though energy harvesting and power generation are still looming challenges that impede their widespread application. Energy scavenging approaches to power biomedical implants have included thermal [1-3], kinetic [4-6], radio-frequency [7-11] and radiative sources [12-14]. However, the achievement of efficient energy scavenging for biomedical implants at the mm-scale has been elusive. Here we show that photovoltaic cells at the mm-scale can achieve a power conversion efficiency of more than 17 % for silicon and 31 % for GaAs under 1.06 μW/mm2 infrared irradiation at 850 nm. Finally, these photovoltaic cells demonstrate highly efficient energy harvesting through biological tissue from ambient sunlight, or irradiation from infrared sources such as used in present-day surveillance systems, by utilizing the near infrared (NIR) transparency window between the 650 nm and 950 nm wavelength range [15-17].
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Affiliation(s)
- Eunseong Moon
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109 USA
| | - David Blaauw
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109 USA
| | - Jamie D Phillips
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109 USA
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16
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Wo Y, Brisbois EJ, Bartlett RH, Meyerhoff ME. Recent advances in thromboresistant and antimicrobial polymers for biomedical applications: just say yes to nitric oxide (NO). Biomater Sci 2016; 4:1161-83. [PMID: 27226170 PMCID: PMC4955746 DOI: 10.1039/c6bm00271d] [Citation(s) in RCA: 170] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Biomedical devices are essential for patient diagnosis and treatment; however, when blood comes in contact with foreign surfaces or homeostasis is disrupted, complications including thrombus formation and bacterial infections can interrupt device functionality, causing false readings and/or shorten device lifetime. Here, we review some of the current approaches for developing antithrombotic and antibacterial materials for biomedical applications. Special emphasis is given to materials that release or generate low levels of nitric oxide (NO). Nitric oxide is an endogenous gas molecule that can inhibit platelet activation as well as bacterial proliferation and adhesion. Various NO delivery vehicles have been developed to improve NO's therapeutic potential. In this review, we provide a summary of the NO releasing and NO generating polymeric materials developed to date, with a focus on the chemistry of different NO donors, the polymer preparation processes, and in vitro and in vivo applications of the two most promising types of NO donors studied thus far, N-diazeniumdiolates (NONOates) and S-nitrosothiols (RSNOs).
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Affiliation(s)
- Yaqi Wo
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.
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17
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Ghorai A, Mondal J, Chandra R, Patra GK. A reversible fluorescent-colorimetric chemosensor based on a novel Schiff base for visual detection of CO32− in aqueous solution. RSC Adv 2016. [DOI: 10.1039/c5ra24549d] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
A novel Schiff base receptor L has been fabricated for fluorescent-colorimetric detection of CO32− in aqueous media. L shows an excellent selectivity, rapid response and reversibility and its sensitivity for CO32− is the lowest ever found (96 nM).
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Affiliation(s)
- Anupam Ghorai
- Department of Chemistry
- Guru Ghasidas Vishwavidyalaya
- Bilaspur
- India
| | - Jahangir Mondal
- Department of Chemistry
- Guru Ghasidas Vishwavidyalaya
- Bilaspur
- India
| | - Rukmani Chandra
- Department of Chemistry
- Guru Ghasidas Vishwavidyalaya
- Bilaspur
- India
| | - Goutam K. Patra
- Department of Chemistry
- Guru Ghasidas Vishwavidyalaya
- Bilaspur
- India
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Frost MC, Meyerhoff ME. Real-Time Monitoring of Critical Care Analytes in the Bloodstream with Chemical Sensors: Progress and Challenges. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2015; 8:171-92. [PMID: 26161973 DOI: 10.1146/annurev-anchem-071114-040443] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We review approaches and challenges in developing chemical sensor-based methods to accurately and continuously monitor levels of key analytes in blood related directly to the status of critically ill hospitalized patients. Electrochemical and optical sensor-based technologies have been pursued to measure important critical care species in blood [i.e., oxygen, carbon dioxide, pH, electrolytes (K(+), Na(+), Cl(-), etc.), glucose, and lactate] in real-time or near real-time. The two main configurations examined to date for achieving this goal have been intravascular catheter sensors and patient attached ex vivo sensors with intermittent blood sampling via an attached indwelling catheter. We discuss the status of these configurations and the main issues affecting the accuracy of the measurements, including cell adhesion and thrombus formation on the surface of the sensors, sensor drift, sensor selectivity, etc. Recent approaches to mitigate these nagging performance issues that have prevented these technologies from clinical use are also discussed.
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Affiliation(s)
- Megan C Frost
- Department of Biomedical Engineering, Michigan Technological University, Houghton, Michigan 49931-1295;
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20
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Schroeder CR, Neurauter G, Klimant I. Luminescent dual sensor for time-resolved imaging of pCO2 and pO2 in aquatic systems. Mikrochim Acta 2007. [DOI: 10.1007/s00604-006-0696-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Bizzarri A, Koehler H, Cajlakovic M, Pasic A, Schaupp L, Klimant I, Ribitsch V. Continuous oxygen monitoring in subcutaneous adipose tissue using microdialysis. Anal Chim Acta 2006; 573-574:48-56. [PMID: 17723504 DOI: 10.1016/j.aca.2006.03.101] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2005] [Revised: 03/10/2006] [Accepted: 03/15/2006] [Indexed: 11/28/2022]
Abstract
A measurement system, consisting of an optochemical glass capillary oxygen sensor, an optoelectronic measuring unit and a microdialysis catheter (CMA 60) for the extraction of the biological fluid from the subcutaneous adipose tissue of critically ill patients is reported. The capillary sensor is based on the oxygen sensitive dye platinum (II) meso-tetra(pentafluorophenyl) porphyrin (Pt-TFPP) incorporated in a polystyrene matrix. The measuring system has been tested in vitro and in vivo. In particular in vitro long-term stability of the sensor has been investigated in different measurement media (elomel, 5% mannitol, Ringer, dialysed blood). The influence of different flow rates from 0.1 up to 7.0 microl min(-1) on the sensor response as well as the oxygen recovery rate are discussed. The presented measurement system allows the measurement of oxygen in biological fluid in the range from 0 to 300 mmHg, with a resolution better than 1 mmHg and high accuracy (better than +/-1 mmHg absolute). Finally, the suitability of the described measurement system for the continuous oxygen monitoring in subcutaneous adipose tissue has been proved in in vivo investigations performed on test animals.
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Affiliation(s)
- Alessandro Bizzarri
- Institute of Chemical Process Development and Control, Joanneum Research Forschungsgesellschaft, Steyrergasse 17, Graz A-8010, Austria.
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Müller B, Reinhardt M, Gächter R. High temporal resolution monitoring of inorganic nitrogen load in drainage waters. ACTA ACUST UNITED AC 2004; 5:808-12. [PMID: 14587854 DOI: 10.1039/b305206k] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nitrate (NO3-), ammonium (NH4+) and pH were monitored with a novel flow cell equipped with ion-selective electrodes (ISEs) in a drainage pipe during one year. The high temporal resolution of the measurements (six measurements per hour) allowed the detection of diurnal oscillations in pH, NO3- and NH4+ concentrations, the relation of variations in concentrations to discharge rates changing during rain events, understanding of the processes resulting in such variations and tracing of unpredictable manure spills. Annual loads estimated from random samples collected every second day tended to underestimate the "true" loads calculated from quasi-continuous electrode measurements by 550% for NH4+ and 22% for NO3-.
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Affiliation(s)
- Beat Müller
- Swiss Federal Institute of Environmental Science and Technology (EA WAG), Swiss Federal Institute of Technology (ETH), Limnological Research Center, CH-6047 Kastanienbaum, Switzerland.
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Frost MC, Batchelor MM, Lee Y, Zhang H, Kang Y, Oh B, Wilson GS, Gifford R, Rudich SM, Meyerhoff ME. Preparation and characterization of implantable sensors with nitric oxide release coatings. Microchem J 2003. [DOI: 10.1016/s0026-265x(03)00033-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Frost MC, Meyerhoff ME. Implantable chemical sensors for real-time clinical monitoring: progress and challenges. Curr Opin Chem Biol 2002; 6:633-41. [PMID: 12413548 DOI: 10.1016/s1367-5931(02)00371-x] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Recently, progress has been made in the development of implantable chemical sensors capable of real-time monitoring of clinically important species such as PO(2), PCO(2), pH, glucose and lactate. The need for developing truly biocompatible materials for sensor fabrication remains the most significant challenge for achieving robust and reliable sensors capable of monitoring the real-time physiological status of patients.
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Affiliation(s)
- Megan C Frost
- Department of Chemistry, The University of Michigan, Ann Arbor 48109-1055, USA
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Schoenfisch MH, Mowery KA, Rader MV, Baliga N, Wahr JA, Meyerhoff ME. Improving the thromboresistivity of chemical sensors via nitric oxide release: fabrication and in vivo evaluation of NO-releasing oxygen-sensing catheters. Anal Chem 2000; 72:1119-26. [PMID: 10740848 DOI: 10.1021/ac991370c] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The development and in vivo analytical performance of a nitric oxide (NO)-releasing amperometric oxygen sensor with greatly enhanced thromboresistivity are reported. Gas permeable coatings formulated with cross-linked silicone rubber (SR) containing NO-generating compounds (diazeniumdiolates) are shown to release NO for extended periods of time (> 20 h) while reducing platelet adhesion and activation. Oxygen-sensing catheters prepared by dip-coating the NO-releasing films over the outer SR tubes of the implantable devices display similar analytical response properties in vitro (sensitivity, selectivity, response times) when compared to analogous sensors prepared without the NO release coatings. Superior analytical accuracy (relative to blood PO2 values measured in vitro) and greatly reduced thrombus formation on the outer surface of the sensors are observed in vivo (in canine model) with the NO release PO2 sensors compared to control sensors (without NO release) implanted simultaneously within the same animals. Based on these preliminary studies, the use of NO release polymers to fabricate catheter-style chemical sensors may be a potential solution to lingering biocompatibility and concomitant performance problems encountered when attempting to employ such devices for continuous intravascular measurements of blood gases and electrolytes.
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Affiliation(s)
- M H Schoenfisch
- Department of Chemistry, University of Michigan, Ann Arbor 48109, USA
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Affiliation(s)
- J Wang
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces 88003, USA
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