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Conductive Hydrogel-Based Electrochemical Sensor: A Soft Platform for Capturing Analyte. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9100282] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Electrode modifications for electrochemical sensors attract a lot of attention every year. Among them, hydrogels are a relatively special class of electrode modifier. Since hydrogels often contain polymers, even though they are conductive polymers, they are not ideal electrode modifiers because of their poor conductivity. However, the micro-aqueous environment and the three-dimensional structure of hydrogels are an excellent platform for immobilizing bioactive molecules and maintaining their activity. This gives the hydrogel-modified electrochemical sensor the potential to perform specific recognition. At the same time, the rapid development of nanomaterials also makes the composite hydrogel have good electrical conductivity. This has led many scientists to become interested in hydrogel-based electrochemical sensors. In this review, we summarize the development process of hydrogel-based electrochemical sensors, starting from 2000. Hydrogel-based electrochemical sensors were initially used only as a carrier for biomolecules, mostly for loading enzymes and for specific recognition. With the widespread use of noble metal nanoparticles and carbon materials, hydrogels can now be used to prepare enzyme-free sensors. Although there are some sporadic studies on the use of hydrogels for practical applications, the vast majority of reports are still limited to the detection of common model molecules, such as glucose and H2O2. In the review, we classify hydrogels according to their different conducting strategies, and present the current status of the application of different hydrogels in electrochemical sensors. We also summarize the advantages and shortcomings of hydrogel-based electrochemical sensors. In addition, future prospects regarding hydrogel for electrochemical sensor use have been provided at the end.
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Kunwar A, Priyadarsini KI, Jain VK. 3,3'-Diselenodipropionic acid (DSePA): A redox active multifunctional molecule of biological relevance. Biochim Biophys Acta Gen Subj 2020; 1865:129768. [PMID: 33148501 DOI: 10.1016/j.bbagen.2020.129768] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/28/2020] [Accepted: 10/19/2020] [Indexed: 01/05/2023]
Abstract
BACKGROUND Extensive research is being carried out globally to design and develop new selenium compounds for various biological applications such as antioxidants, radio-protectors, anti-carcinogenic agents, biocides, etc. In this pursuit, 3,3'-diselenodipropionic acid (DSePA), a synthetic organoselenium compound, has received considerable attention for its biological activities. SCOPE OF REVIEW This review intends to give a comprehensive account of research on DSePA so as to facilitate further research activities on this organoselenium compound and to realize its full potential in different areas of biological and pharmacological sciences. MAJOR CONCLUSIONS It is an interesting diselenide structurally related to selenocystine. It shows moderate glutathione peroxidase (GPx)-like activity and is an excellent scavenger of reactive oxygen species (ROS). Exposure to radiation, as envisaged during radiation therapy, has been associated with normal tissue side effects and also with the decrease in selenium levels in the body. In vitro and in vivo evaluation of DSePA has confirmed its ability to reduce radiation induced side effects into normal tissues. Administration of DSePA through intraperitoneal (IP) or oral route to mice in a dose range of 2 to 2.5 mg/kg body weight has shown survival advantage against whole body irradiation and a significant protection to lung tissue against thoracic irradiation. Pharmacokinetic profiling of DSePA suggests its maximum absorption in the lung. GENERAL SIGNIFICANCE Research work on DSePA reported in fifteen years or so indicates that it is a promising multifunctional organoselenium compound exhibiting many important activities of biological relevance apart from radioprotection.
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Affiliation(s)
- A Kunwar
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
| | - K Indira Priyadarsini
- UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Santacruz (E), Mumbai 400098, India.
| | - Vimal K Jain
- UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Santacruz (E), Mumbai 400098, India.
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3
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Uygun M, Doganci E, Tasdelen MA, Gurek AG. One‐pot photoinduced synthesis of dansyl containing acrylamide hydrogels and their chemosensing properties. J Appl Polym Sci 2019. [DOI: 10.1002/app.47096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- M. Uygun
- Department of ChemistryGebze Technical University 41400 Kocaeli Turkey
| | - E. Doganci
- Department of Chemistry and Chemical Processing TechKocaeli University 41140 Kocaeli Turkey
| | - M. A. Tasdelen
- Faculty of Engineering, Department of Polymer EngineeringYalova University 77100 Yalova Turkey
| | - A. G. Gurek
- Department of ChemistryGebze Technical University 41400 Kocaeli Turkey
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5
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Zhou Y, Jie K, Huang F. A redox-responsive selenium-containing pillar[5]arene-based macrocyclic amphiphile: synthesis, controllable self-assembly in water, and application in controlled release. Chem Commun (Camb) 2017; 53:8364-8367. [DOI: 10.1039/c7cc04779g] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A selenium-containing pillar[5]arene-based macrocyclic amphiphile was prepared. This amphiphile self-assembled in water to form vesicles with redox responsiveness. Then, these pillar[5]arene-based vesicles were used in the controlled release of DOX.
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Affiliation(s)
- Yujuan Zhou
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High-Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
| | - Kecheng Jie
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High-Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High-Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
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6
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Baldim V, Ismail A, Taladriz-Blanco P, Griveau S, de Oliveira MG, Bedioui F. Amperometric Quantification of S-Nitrosoglutathione Using Gold Nanoparticles: A Step toward Determination of S-Nitrosothiols in Plasma. Anal Chem 2016; 88:3115-20. [DOI: 10.1021/acs.analchem.5b04035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Victor Baldim
- Institute
of Chemistry, University of Campinas, UNICAMP, Campinas, São
Paulo, 13083-970, Brazil
- Chimie ParisTech,
PSL Research University, Unité de Technologies Chimiques et
Biologiques pour la Santé (UTCBS), 75005 Paris, France
- INSERM, UTCBS, 75005, Paris, France
- CNRS, UTCBS UMR
8258, 75005 Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, UTCBS, 75006 Paris, France
| | - Abdulghani Ismail
- Chimie ParisTech,
PSL Research University, Unité de Technologies Chimiques et
Biologiques pour la Santé (UTCBS), 75005 Paris, France
- INSERM, UTCBS, 75005, Paris, France
- CNRS, UTCBS UMR
8258, 75005 Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, UTCBS, 75006 Paris, France
| | | | - Sophie Griveau
- Chimie ParisTech,
PSL Research University, Unité de Technologies Chimiques et
Biologiques pour la Santé (UTCBS), 75005 Paris, France
- INSERM, UTCBS, 75005, Paris, France
- CNRS, UTCBS UMR
8258, 75005 Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, UTCBS, 75006 Paris, France
| | | | - Fethi Bedioui
- Chimie ParisTech,
PSL Research University, Unité de Technologies Chimiques et
Biologiques pour la Santé (UTCBS), 75005 Paris, France
- INSERM, UTCBS, 75005, Paris, France
- CNRS, UTCBS UMR
8258, 75005 Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, UTCBS, 75006 Paris, France
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7
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Badr IH, Abdel-Sattar R, Keshk SM. Enhancing biocompatibility of some cation selective electrodes using heparin modified bacterial cellulose. Carbohydr Polym 2015; 134:687-94. [DOI: 10.1016/j.carbpol.2015.08.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 08/02/2015] [Accepted: 08/17/2015] [Indexed: 10/23/2022]
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8
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Hunter RA, Schoenfisch MH. S-Nitrosothiol analysis via photolysis and amperometric nitric oxide detection in a microfluidic device. Anal Chem 2015; 87:3171-6. [PMID: 25714120 DOI: 10.1021/ac503220z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A 530 nm light emitting diode was coupled to a microfluidic sensor to facilitate photolysis of nitrosothiols (i.e., S-nitrosoglutathione, S-nitrosocysteine, and S-nitrosoalbumin) and amperometric detection of the resulting nitric oxide (NO). This configuration allowed for maximum sensitivity and versatility, while limiting potential interference from nitrate decomposition caused by ultraviolet light. Compared to similar measurements of total S-nitrosothiol content in bulk solution, use of the microfluidic platform permitted significantly enhanced analytical performance in both phosphate-buffered saline and plasma (6-20× improvement in sensitivity depending on nitrosothiol type). Additionally, the ability to reduce sample volumes from milliliters to microliters provides increased clinical utility. To demonstrate its potential for biological analysis, this device was used to measure basal nitrosothiol levels from the vasculature of a healthy porcine model.
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Affiliation(s)
- Rebecca A Hunter
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Mark H Schoenfisch
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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9
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Zhou Y, Jie K, Shi B, Yao Y. A γ-ray and dual redox-responsive supramolecular polymer constructed by a selenium containing pillar[5]arene dimer and a neutral guest. Chem Commun (Camb) 2015; 51:11112-4. [DOI: 10.1039/c5cc02886h] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel linear supramolecular polymer was fabricated by self-assembly of a selenium containing pillar[5]arene dimer 1 and a neutral guest 2. This supramolecular polymer can be destroyed by irradiating γ-radiation, or adding H2O2 or GSH.
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Affiliation(s)
- Yujuan Zhou
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Kecheng Jie
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Bingbing Shi
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Yong Yao
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
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Ren H, Wu Y, Li Y, Cao W, Sun Z, Xu H, Zhang X. Visible-light-induced disruption of diselenide-containing layer-by-layer films: toward combination of chemotherapy and photodynamic therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:3981-3986. [PMID: 23737377 DOI: 10.1002/smll.201300628] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 04/12/2013] [Indexed: 06/02/2023]
Abstract
A photoresponsive polyelectrolyte multilayer film containing a diselenide functional group is fabricated using an unconventional layer-by-layer method. The polycation backbone is constructed through copolymerization of di-(1-hydroxylundecyl) diselenide and 1,4-bis(2-hydroxyethyl)piperazine with 2,4-diisocyanatotoluene. A common polyanion poly(styrene sulfonate) is selected as the polyanion. The obtained film can be gradually disrupted under the irradiation of mild visible light, and this process can be monitored with UV-vis spectroscopy. The residue of the film is estimated to be 17% after 5 h of irradiation. The intensity of the visible light can be as low as 50 mW cm⁻², which is even weaker than the sunlight. The cytotoxicity of the building blocks is evaluated in MTT assays using human hepatic cell line (L-02), and the results are satisfactory. Further tests show that cells can grow in a regular manner on this film, indicating good biocompatibility. In addition, the film can be used to achieve cargo loading and controlled release. Considering that light can not only trigger controlled release but also act as part of the therapy itself (photodynamic therapy), this system shows hope for further development into a platform for the combination of chemotherapy and photodynamic therapy, especially for applications concerning skin.
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Affiliation(s)
- Huifeng Ren
- Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, PR China
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11
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Badr IHA, Gouda M, Abdel-Sattar R, Sayour HEM. Reduction of thrombogenicity of PVC-based sodium selective membrane electrodes using heparin-modified chitosan. Carbohydr Polym 2013; 99:783-90. [PMID: 24274570 DOI: 10.1016/j.carbpol.2013.08.087] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 08/24/2013] [Accepted: 08/27/2013] [Indexed: 11/18/2022]
Abstract
Heparin-modified chitosan (H-chitosan) membrane was utilized to enhance biocompatibility of sodium selective membrane electrode based on the highly thrombogenic polyvinyl chloride (PVC). Sodium ion sensing film was prepared using PVC, sodium ionophore-X, potassium tetrakis(chlorophenyl)-borate, and o-nitrophenyloctylether. The PVC-based sensing film was sandwiched to chitosan or H-chitosan to prevent platelet adhesion on the surface of PVC. Potentiometric response characteristics of PVC-chitosan and PVC-H-chitosan membrane electrodes were found to be comparable to that of a control PVC based sodium-selective electrode. This indicates that chitosan and H-chitosan layers do not alter the response behaviour of the PVC-based sensing film. Biocompatibility of H-chitosan was confirmed by in vitro platelet adhesion study. The platelet adhesion investigations indicated that H-chitosan film is less thrombogenic compared to PVC, which could result in enhancement of biocompatibility of sodium selective membrane electrodes based on PVC, while maintaining the overall electrochemical performance of the PVC-based sensing film.
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Affiliation(s)
- Ibrahim H A Badr
- Chemistry Department, Faculty of Science, Ain-Shams University, Cairo 11566, Egypt.
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12
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Wujcik EK, Londoño NJ, Duirk SE, Monty CN, Masel RI. An acetylcholinesterase-inspired biomimetic toxicity sensor. CHEMOSPHERE 2013; 91:1176-82. [PMID: 23422169 DOI: 10.1016/j.chemosphere.2013.01.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Revised: 01/08/2013] [Accepted: 01/09/2013] [Indexed: 05/15/2023]
Abstract
This work demonstrates the ability of an acetylcholinesterase-inspired biomimetic sensor to accurately predict the toxicity of acetylcholinesterase (AChE) inhibitors. In surface waters used for municipal drinking water supplies, numerous pesticides and other anthropogenic chemicals have been found that inhibit AChE; however, there is currently no portable toxicity assay capable of determining the potential neurotoxicity of water samples and complex mixtures. Biological assays have been developed to determine the toxicity of unknown samples, but the short shelf-life of cells and other biological materials often make them undesirable for use in portable assays. Chemical methods and structure-activity-relationships, on the other hand, require prior knowledge on the compounds of interest that is often unavailable when analyzing environmental samples. In the toxicity assay presented here, the acetylcholinesterase enzyme has been replaced with 1-phenyl-1,2,3-butanetrione 2-oxime (PBO) a biomimetic compound that is structurally similar to the AChE active site. Using a biomimetic compound in place of the native enzyme allows for a longer shelf-life while maintaining the selective and kinetic ability of the enzyme itself. Previous work has shown the success of oxime-based sensors in the selective detection of AChE inhibitors and this work highlights the ability of an AChE-inspired biomimetic sensor to accurately predict the toxicity (LD50 and LC50) for a range of AChE inhibitors. The biomimetic assay shows strong linear correlations to LD50 (oral, rat) and LC50 (fish) values. Using a test set of eight AChE inhibitors, the biomimetic assay accurately predicted the LC50 value for 75% of the inhibitors within one order of magnitude.
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Affiliation(s)
- Evan K Wujcik
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, United States
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13
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Cao W, Zhang X, Miao X, Yang Z, Xu H. γ-Ray-Responsive Supramolecular Hydrogel Based on a Diselenide-Containing Polymer and a Peptide. Angew Chem Int Ed Engl 2013; 52:6233-7. [DOI: 10.1002/anie.201300662] [Citation(s) in RCA: 159] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 03/31/2013] [Indexed: 11/11/2022]
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14
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Cao W, Zhang X, Miao X, Yang Z, Xu H. γ-Ray-Responsive Supramolecular Hydrogel Based on a Diselenide-Containing Polymer and a Peptide. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300662] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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15
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Griveau S, Bedioui F. Electroanalytical methodologies for the detection of S-nitrosothiols in biological fluids. Analyst 2013; 138:5173-81. [DOI: 10.1039/c3an00488k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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16
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Nassi A, To Thi Kim L, Girard A, Griscom L, Razan F, Griveau S, Thouin L, Bedioui F. Comparison of three different configurations of dual ultramicroelectrodes for the decomposition of S-Nitroso-L-glutathione and the direct detection of nitric oxide. Mikrochim Acta 2012. [DOI: 10.1007/s00604-012-0860-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Huang CC, Shao HB. Enhanced flow injection analysis for measurements of S-nitrosothiols species in biological samples using highly selective amperometric nitric oxide sensor. CHINESE CHEM LETT 2012. [DOI: 10.1016/j.cclet.2011.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Harfield JC, Batchelor-McAuley C, Compton RG. Electrochemical determination of glutathione: a review. Analyst 2012; 137:2285-96. [DOI: 10.1039/c2an35090d] [Citation(s) in RCA: 167] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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19
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Cao W, Li Y, Yi Y, Ji S, Zeng L, Sun Z, Xu H. Coordination-responsive selenium-containing polymer micelles for controlled drug release. Chem Sci 2012. [DOI: 10.1039/c2sc21315j] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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20
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Riccio DA, Nutz ST, Schoenfisch MH. Visible photolysis and amperometric detection of S-nitrosothiols. Anal Chem 2011; 84:851-6. [PMID: 22201553 DOI: 10.1021/ac2031805] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The concentration of S-nitrosothiols (RSNOs), endogenous transporters of the signaling molecule nitric oxide (NO), fluctuate greatly in physiology often as a function of disease state. RSNOs may be measured indirectly by cleaving the S-N bond and monitoring the liberated NO. While ultraviolet photolysis and reductive-based cleavage both decompose RSNOs to NO, poor selectivity and the need for additional reagents preclude their utility clinically. Herein, we report the coupling of visible photolysis (i.e., 500-550 nm) and amperometric NO detection to quantify RSNOs with greater selectivity and sensitivity. Enhanced sensitivity (up to 1.56 nA μM(-1)) and lowered theoretical detection limits (down to 30 nM) were achieved for low molecular weight RSNOs (i.e., S-nitrosoglutathione, S-nitrosocysteine) by tuning the irradiation exposure. Detection of nitrosated proteins (i.e., S-nitrosoalbumin) was also possible, albeit at a decreased sensitivity (0.11 nA μM(-1)). This detection scheme was used to measure RSNOs in plasma and illustrate the potential of this method for future physiological studies.
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Jia H, Han X, Li Z, Tian Q, Miao X, Du L, Liu Y. Gold nanoparticles-based catalysis for detection of S-nitrosothiols in blood serum. Talanta 2011; 85:1871-5. [PMID: 21872031 DOI: 10.1016/j.talanta.2011.07.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 07/04/2011] [Accepted: 07/07/2011] [Indexed: 12/21/2022]
Abstract
Accumulating evidence suggests that S-nitrosothiols (RSNOs) play key roles in human health and disease. To clarify their physiological functions and roles in diseases, it is necessary to promote some new techniques for quantifying RSNOs in blood and other biological fluids. Here, a new method using gold nanoparticle catalysts has been introduced for quantitative evaluation of RSNOs in blood serum. The assay involves degrading RSNOs using gold nanoparticles and detecting nitric oxide (NO) released with NO-selective electrodes. The approach displays very high sensitivity for RSNOs with a low detection limit in the picomolar concentration range (5.08 × 10(-11) mol L(-1), S/N=3) and is free from interference of some endogenous substances such as NO(2)(-) and NO(3)(-) co-existing in blood serum. A linear function of concentration in the range of (5.0-1000.0) × 10(-9) mol L(-1) has been observed with a correlation coefficient of 0.9976. The level of RSNOs in blood serum was successfully determined using the described method above. In addition, a dose-dependent effect of gold nanoparticles on the sensitivity for RSNOs detection is revealed, and thereby the approach is potentially useful to evaluate RSNOs levels in various biological fluids via varying gold nanoparticles concentration.
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Affiliation(s)
- Hongying Jia
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
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22
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Kim LTT, Girard A, Griscom L, Razan F, Griveau S, Bedioui F. Micro-ring disc ultramicroelectrodes array for direct detection of NO-release from S-nitrosoglutathione. Electrochem commun 2011. [DOI: 10.1016/j.elecom.2011.04.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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23
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Huang C, Brisbois E, Meyerhoff ME. Flow injection measurements of S-nitrosothiols species in biological samples using amperometric nitric oxide sensor and soluble organoselenium catalyst reagent. Anal Bioanal Chem 2011; 400:1125-35. [PMID: 21416401 PMCID: PMC3190598 DOI: 10.1007/s00216-011-4840-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 02/23/2011] [Accepted: 02/24/2011] [Indexed: 02/07/2023]
Abstract
A novel flow injection analysis (FIA) system suitable for measurement of S-nitrosothiols (RSNOs) in blood plasma is described. In the proposed (FIA) system, samples and standards containing RSNO species are injected into a buffer carrier stream that is mixed with the reagent stream containing 3,3'-dipropionicdiselenide (SeDPA) and glutathione (GSH). SeDPA has been shown previously to catalytically decompose RSNOs in the presence of a reducing agent, such as GSH, to produce nitric oxide (NO). The liberated NO is then detected downstream by an amperometric NO sensor. This sensor is prepared using an electropolymerized m-phenylenediamine (m-PD)/resorcinol and Nafion composite films at the surface of a platinum electrode. Using optimized flow rates and reagent concentrations, detection of various RSNOs at levels in the range of 0.25-20 μM is possible. For plasma samples, detection of background sensor interference levels within the samples must first be carried out using an identical FIA arrangement, but without the added SeDPA and GSH reagents. Subtraction of this background sensor current response allows good analytical recovery of RSNOs spiked into animal plasma samples, with recoveries in the range of 90.4-101.0%.
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Affiliation(s)
- Chuncui Huang
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109-1055, USA; Key Laboratory of Cluster Science of Ministry of Education and Department of Chemistry, Beijing Institute of Technology, Beijing 100081, China
| | - Elizabeth Brisbois
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109-1055, USA
| | - Mark E. Meyerhoff
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109-1055, USA
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Höfler L, Meyerhoff ME. Modeling the effect of oxygen on the amperometric response of immobilized organoselenium-based S-nitrosothiol sensors. Anal Chem 2011; 83:619-24. [PMID: 21230000 DOI: 10.1021/ac1021979] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Amperometric detection of S-nitrosothiols (RSNOs) at submicromolar levels in blood samples is of potential importance for monitoring endothelial function and other disease states that involve changes in physiological nitric oxide (NO) production. It is shown here that the elimination of dissolved oxygen from samples is critical when covalently attached diselenocystamine-based amperometric RSNO sensors are used for practical RSNO measurements. The newest generation of RSNO sensors utilizes an amperometric NO gas sensor with a thin organoselenium modified dialysis membrane mounted at the distal sensing tip. Sample RSNOs are catalytically reduced to NO within the dialysis membrane by the immobilized organoselenium species. In the presence of oxygen, the sensitivity of these sensors for measuring low levels of RSNOs (<μM) is greatly reduced. It is demonstrated that the main scavenger of the generated nitric oxide is not the dissolved oxygen but rather superoxide anion radical generated from the reaction of the reduced organoselenium species (the reactive species in the catalytic redox cycle) and dissolved oxygen. Computer simulations of the response of the RSNO sensor using rate constants and diffusion coefficients for the reactions involved, known from the literature or estimated from fitting to the observed amperometric response curves, as well as the specific geometric dimensions of the RSNO sensor, further support that nitric oxide and superoxide anion radical quickly react resulting in near zero sensor sensitivity toward RSNO concentrations in the submicromolar concentration range. Elimination of oxygen from samples helps improve sensor detection limits to ca. 10 nM levels of RSNOs.
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Affiliation(s)
- Lajos Höfler
- Department of Chemistry, The University of Michigan, 930 N. University, Ann Arbor, Michigan 48109-1055, USA
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Abstract
The unique combination of chemical, thermal, and mechanical stability, high fractional free volume, low refractive index, low surface energy, and wide optical transparency has led to growing interest in Teflon Amorphous Fluoropolymers (AFs) for a wide spectrum of applications ranging from chemical separations and sensors to bioassay platforms. New opportunities arise from the incorporation of nanoscale materials in Teflon AFs. In this chapter, we highlight fractional free volume - the most important property of Teflon AFs - with the aim of clarifying the unique transport behavior through Teflon AF membranes. We then review state-of-the-art developments based on Teflon AF platforms by focusing on the chemistry behind the applications.
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Weng Y, Song Q, Zhou Y, Zhang L, Wang J, Chen J, Leng Y, Li S, Huang N. Immobilization of selenocystamine on TiO2 surfaces for in situ catalytic generation of nitric oxide and potential application in intravascular stents. Biomaterials 2010; 32:1253-63. [PMID: 21093045 DOI: 10.1016/j.biomaterials.2010.10.039] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Accepted: 10/19/2010] [Indexed: 10/18/2022]
Abstract
Immobilization of selenocystamine on TiO(2) film deposited on silicon wafer and 316 stainless steel stents for catalytic generation of nitric oxide was described. Polydopamine was used as the linker for immobilization of selenocystamine to the TiO(2) surface. In vitro stability of the immobilized selenocystamine was investigated and the result shows surface selenium loss occurs mostly in the first four weeks. The selenocystamine immobilized surface possesses glutathione peroxidase (GPx) activity, and the activity increases with the amount of grafted polydopamine. Such selenocystamine immobilized surfaces show the ability of catalytically decomposing endogenous S-nitrosothiols (RSNO), generating NO; thus the surface displays the ability to inhibit collagen-induced platelet acitivation and aggregation. Additionally, smooth muscle cells are inhibited from adhering to the selenocystamine immobilized sample when RSNO is added to the culture media. ELISA analysis reveals that cGMP in both platelets and smooth muscle cells significantly increases with NO release on selenocystamine immobilized samples. Two months in vivo results show that selenocystamine immobilized stents are endothelialized, and show significant anti-proliferation properties, indicating that this is a favorable method for potential application in vascular stents.
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Affiliation(s)
- Yajun Weng
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, China
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27
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Puiu SC, Zhou Z, White CC, Neubauer LJ, Zhang Z, Lange LE, Mansfield JA, Meyerhoff ME, Reynolds MM. Metal ion-mediated nitric oxide generation from polyurethanes via covalently linked copper(II)-cyclen moieties. J Biomed Mater Res B Appl Biomater 2009; 91:203-12. [PMID: 19441117 DOI: 10.1002/jbm.b.31391] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Polyurethanes are widely used in the manufacturing of biomedical catheters and other blood-contacting devices; however, thrombus formation still occurs, which renders these catheters ineffective unless systemic anticlotting agents are used. Nitric oxide (NO) is a well-known inhibitor of platelet activity. In the current study, two commercially available medical polyurethanes (Pellethane and Tecophilic) were derivatized to possess NO-generating Cu(II)-cyclen moieties pendant to the polymer backbone. A new three-step synthetic approach is used, that is simpler than a recently reported method to prepare Cu(II)-cyclen-polyurethane materials. Both derivatized polyurethanes were found to produce NO at levels at or above those of endothelial cells. A comparison between the modified commercial polyurethanes (hydrophobic vs. hydrophilic) is presented, including the synthetic scheme, extensive characterization, and coating application. These derivatized polymers may serve as useful coatings to prevent clotting on the surface of catheters and other blood-contacting biomedical devices.
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Determination of glutathione and glutathione disulfide in biological samples: An in-depth review. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:3331-46. [DOI: 10.1016/j.jchromb.2009.06.016] [Citation(s) in RCA: 197] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2009] [Revised: 06/02/2009] [Accepted: 06/10/2009] [Indexed: 12/13/2022]
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Affiliation(s)
| | - Wansik Cha
- Department of Chemistry, University of Michigan, Ann Arbor, MI
| | - Fenghua Zhang
- Department of Chemistry, University of Michigan, Ann Arbor, MI
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Amperometric S-nitrosothiol sensor with enhanced sensitivity based on organoselenium catalysts. Biosens Bioelectron 2008; 24:2441-6. [PMID: 19168347 DOI: 10.1016/j.bios.2008.12.022] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2008] [Revised: 12/12/2008] [Accepted: 12/15/2008] [Indexed: 11/24/2022]
Abstract
A new S-nitrosothiol (RSNO) detection strategy based on an electrochemical sensor is described for rapidly estimating levels of total RSNOs in blood and other biological samples. The sensor employs a cellulose dialysis membrane covalently modified with an organoselenium catalyst that converts RSNOs to NO at the distal tip of an amperometric NO sensor. The sensor is characterized by very low detection limits (<20 nM), good long-term stability, and can be employed for the rapid detection of total low-molecular-weight (LMW) RSNO levels in whole blood samples using a simple standard addition method. A strategy for detecting macromolecular RSNOs is also demonstrated via use of a transnitrosation reaction with added LMW thiols allowing the estimation of total RSNO levels in blood. The sensor is shown to exhibit high selectivity over nitrosamines and nitrite. Such RSNO detection is potentially useful to reveal correlation between blood RSNO levels and endothelial cell dysfunction, which often is associated with cardiovascular diseases.
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Yang J, Welby JL, Meyerhoff ME. Generic nitric oxide (NO) generating surface by immobilizing organoselenium species via layer-by-layer assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:10265-72. [PMID: 18710268 PMCID: PMC2824255 DOI: 10.1021/la801466e] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
A universal nitric oxide (NO) generating surface is assembled via Layer-by-Layer (LbL) deposition of sodium alginate (Alg) and organoselenium modified polyethyleneimine (SePEI) on quartz and polymeric substrates. The immobilized SePEI species is capable of catalytically decomposing S-nitrosothiol species (RSNO) to NO in the presence of thiol reducing agents (e.g., glutathione, cysteine, etc.). The stepwise buildup of the multilayer films is monitored by UV-vis spectroscopy, SEM and surface contact angle measurements. X-ray photoelectron spectroscopy is used to study the stoichiometry between the polyanion and polycation, and also the presence of Se in the catalytic LbL film. A reductive annealing process is necessary to improve the stability of freshly coated multilayer films via chain rearrangement. Chemiluminescence measurements illustrate the ability of the LbL films to generate NO from S-nitrosoglutathione (GSNO) in the presence of glutathione (GSH). Enhanced NO fluxes can be achieved by increasing the number of catalytic (SePEI/Alg) bilayers coated on the substrates. Nitric oxide generation is observed even after prolonged contact with sheep whole blood. Preliminary applications of this LbL on silicone rubber tubings and polyurethane catheters reveal similar NO generation behavior from these biomedical grade polymeric substrates.
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Affiliation(s)
- Jun Yang
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan, 48109-1055
| | - Jenna L. Welby
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan, 48109-1055
| | - Mark E. Meyerhoff
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan, 48109-1055
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Electrochemical Sensors for Measuring S-Nitrosothiol Species in Whole Blood. POINT OF CARE 2008. [DOI: 10.1097/01.poc.0000335843.22863.f7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wu Y, Zhang F, Wang Y, Krishnamoorthy M, Roy-Chaudhury P, Bleske BE, Meyerhoff ME. Photoinstability of S-nitrosothiols during sampling of whole blood: a likely source of error and variability in S-nitrosothiol measurements. Clin Chem 2008; 54:916-8. [PMID: 18443178 DOI: 10.1373/clinchem.2007.102103] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND The determination of reference intervals for the concentration of total S-nitrosothiols (RSNOs) in blood is a highly controversial topic, likely because of the inherent instability of these species. Most currently available techniques to quantify RSNOs in blood require considerable sample handling and multiple pretreatment steps during which light exposure is difficult to completely eliminate. We investigated the effect of brief light exposure on the stability of RSNO species in blood during the initial sampling process. METHODS A novel amperometric RSNO sensor, based on an immobilized organoselenium catalyst at the distal tip of an electrochemical nitric oxide detector, was used to determine RSNO species in diluted whole blood without centrifugation or pretreatment. Porcine blood was collected into aluminum foil-wrapped syringes via a 12-inch butterfly needle tube assembly. Two blood samples were collected from the same animal -- one with the butterfly needle tubing wrapped in aluminum foil and one with the tubing exposed to ambient room light. The RSNO concentrations in these sequential blood samples were determined by a standard addition procedure. RESULTS Eight sets of measurements were made in 6 animals. Samples exposed to light yielded RSNO concentrations only 23.6% (7.2%) [mean (SD)] of the RSNO concentrations determined in samples that were shielded from light and obtained from the same animals. CONCLUSIONS These results suggest significant photoinstablity of RSNOs in whole blood and indicate the critical importance of proper light protection during sampling and processing of blood samples for the accurate determinations of endogenous RSNO concentrations.
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Affiliation(s)
- Yiduo Wu
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109-1055, USA
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Affiliation(s)
- Benjamin J Privett
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
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Wu Y, Meyerhoff ME. Nitric oxide-releasing/generating polymers for the development of implantable chemical sensors with enhanced biocompatibility. Talanta 2008; 75:642-50. [PMID: 18585126 PMCID: PMC2442581 DOI: 10.1016/j.talanta.2007.06.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2007] [Accepted: 06/13/2007] [Indexed: 11/19/2022]
Abstract
The development of reliable in vivo chemical sensors for real-time clinical monitoring of blood gases, electrolytes, glucose, etc. in critically ill and diabetic patients remains a great challenge owing to inherent biocompatibility problems that can cause errant analytical results upon sensor implantation (e.g., cell adhesion, thrombosis, inflammation). Nitric oxide (NO) is a well-known inhibitor of platelet activation and adhesion, and also a potent inhibitor of smooth muscle cell proliferation. In addition, NO mediates inflammatory response and promotes angiogenesis. Polymers that release or generate NO at their surfaces have been shown to exhibit greatly enhanced thromboresistance in vivo when in contact with flowing blood, as well as reduce inflammatory response when placed subcutaneously, and thus have the potential to improve the biocompatibility of implanted chemical sensors. Locally elevated NO levels at the surface of implanted devices can be achieved by using polymers that incorporate NO donor species that can decompose and release NO spontaneously when in contact with physiological fluids, or NO-generating polymers that possess an immobilized catalyst that decompose endogenous S-nitrosothiols to generate NO in situ. The potential use of such NO-releasing/generating materials for preparing in vivo sensors implanted either intravascularly or subcutaneously, is examined in this review.
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Affiliation(s)
- Yiduo Wu
- Department of Chemistry, The University of Michigan, Ann Arbor, MI 48109-1055, USA
| | - Mark E. Meyerhoff
- Department of Chemistry, The University of Michigan, Ann Arbor, MI 48109-1055, USA
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Hwang S, Meyerhoff ME. Polyurethane with tethered copper(II)-cyclen complex: preparation, characterization and catalytic generation of nitric oxide from S-nitrosothiols. Biomaterials 2008; 29:2443-52. [PMID: 18314189 DOI: 10.1016/j.biomaterials.2008.02.004] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2007] [Accepted: 02/07/2008] [Indexed: 11/19/2022]
Abstract
The preparation and characterization of a commercial biomedical-grade polyurethane (Tecophilic((R)), SP-93A-100) material possessing covalently linked copper(II)-cyclen moieties as a nitric oxide (NO) generating polymer are described. Chemiluminescence NO measurements demonstrate that the prepared polymer can decompose endogenous S-nitrosothiols (RSNOs) such as S-nitrosoglutathione and S-nitrosocysteine to NO in the presence of thiol reducing agents (RSHs; e.g., glutathione and cysteine) at physiological pH. Since such RSNO and RSH species already exist in blood, the proposed polymer is capable of spontaneously generating NO when in contact with fresh blood. This is demonstrated by utilizing the polymer as an outer coating at the distal end of an amperometric NO sensor to create a device that generates response toward the RSNO species in the blood. This polymer possesses the combined benefits of a commercial biomedical-grade polyurethane with the ability to generate biologically active NO when in contact with blood, and thus may serve as a useful coating to improve the hemocompatibility of various medical devices.
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Affiliation(s)
- Sangyeul Hwang
- Department of Chemistry, The University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109-1055, USA
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Hwang S, Cha W, Meyerhoff M. Amperometric Nitrosothiol Sensor Using Immobilized Organoditelluride Species as Selective Catalytic Layer. ELECTROANAL 2008. [DOI: 10.1002/elan.200704053] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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38
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Hwang S, Meyerhoff ME. Organoditelluride-tethered polymers that spontaneously generate nitric oxide when in contact with fresh blood. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b715523a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cha W, Meyerhoff ME. Catalytic generation of nitric oxide from S-nitrosothiols using immobilized organoselenium species. Biomaterials 2007; 28:19-27. [PMID: 16959311 DOI: 10.1016/j.biomaterials.2006.08.019] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2006] [Accepted: 08/11/2006] [Indexed: 12/01/2022]
Abstract
Novel nitric oxide (NO) generating polymeric materials possessing immobilized organoselenium species are described. These materials mimic the capability of small organoselenium molecules as well as a known selenium-containing enzyme, glutathione peroxidase (GPx), by catalytically decomposing S-nitrosothiols (RSNO) into NO and the corresponding free thiol. Model polymeric materials, e.g., cellulose filter paper and polyethylenimine, are modified with an appropriate diselenide species covalently linked to the polymeric structures. Such organoselenium (RSe)-derivatized polymers are shown to generate NO from RSNO species in the presence of an appropriate thiol reducing agent (e.g., glutathione). The likely involvement of both immobilized selenol/selenolate and diselenide species for NO production is suggested via a catalytic pathway, as deduced in separate homogeneous solution phase experiments using non-immobilized forms of small organodiselenide species. Preliminary experiments with the new RSe-polymers clearly demonstrate the ability of such materials to generate NO from RSNO species even after the contact with fresh animal plasma. It is anticipated that such NO generation from endogenous S-nitrosothiols in blood could render RSe-containing polymeric materials more thromboresistant when in contact with flowing blood, owing to NO's ability to inhibit platelet adhesion and activation.
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Affiliation(s)
- Wansik Cha
- Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48109-1055, USA
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40
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Hwang S, Meyerhoff ME. Organoditelluride-mediated catalytic S-nitrosothiol decomposition. ACTA ACUST UNITED AC 2007. [DOI: 10.1039/b700375g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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