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He H, Guo J, Zhao J, Xu J, Zhao C, Gao Z, Song YY. Engineering CuMOF in TiO 2 Nanochannels as Flexible Gas Sensor for High-Performance NO Detection at Room Temperature. ACS Sens 2022; 7:2750-2758. [PMID: 36097963 DOI: 10.1021/acssensors.2c01318] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
As a marker molecule in respiratory gases for the pulmonary disease asthma, nitric oxide (NO) has attracted much attention for real-time gas monitoring. However, low sensitivity, poor selectivity, and high operating temperature limit the practical applications of metal oxide semiconductor (MOS) based chemiresistor gas sensors. Herein, by deliberately introducing metal-organic frameworks (MOFs) in free-standing TiO2 nanochannels (NCs), a chemiresistor gas sensor with excellent detection ability and outstanding selective traits is developed for sensing NO at room temperature (RT). The precisely engineered Cu(II)-based MOF Cu-TCA (H3TCA = tricarboxytriphenyl amine) induces more active surface in the NCs, causing the buildup of CuTCA/TiO2 p-n heterojunctions that improve the sensing response at RT just via a simple UV irradiation (λ = 365 nm). Importantly, the specialized reductive reaction of Cu(II) by NO enables a remarkable selectivity toward NO analysis. Owing to the synergistic large active surface and chemical sensitization effects from Cu-TCA, the resulting Cu-TCA/TiO2 NCs show outstanding sensing performance; i.e., the response ((Rgas - Rair)/Rair) reaches 124% at 50 ppm of NO with a detection limit of 140 ppb at RT. In addition, the response time decreases to 25.6% if the system is subjected to UV irradiation. The as-formed sensing membrane is also demonstrated to be practically effective for flexible and wearable sensing devices for quantitative NO analysis. This study facilitates the use of MOFs to achieve synergistically enhanced selectivity and sensitivity to develop high-performance gas sensors.
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Affiliation(s)
- Haoxuan He
- College of Sciences, Northeastern University, Shenyang 110819, China
| | - Junli Guo
- College of Sciences, Northeastern University, Shenyang 110819, China
| | - Jiahui Zhao
- College of Sciences, Northeastern University, Shenyang 110819, China
| | - Jing Xu
- College of Sciences, Northeastern University, Shenyang 110819, China
| | - Chenxi Zhao
- College of Sciences, Northeastern University, Shenyang 110819, China
| | - Zhida Gao
- College of Sciences, Northeastern University, Shenyang 110819, China
| | - Yan-Yan Song
- College of Sciences, Northeastern University, Shenyang 110819, China
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2
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Ling P, Gao X, Sun X, Yang P, Gao F. Versatile metal-organic frameworks as a catalyst and an indicator of nitric oxide. J Mater Chem B 2022; 10:3817-3823. [PMID: 35481965 DOI: 10.1039/d2tb00480a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The imaging of nitric oxide (NO) and its donors is crucial to explore NO-related physiological and pathological processes. In this work, we demonstrate the use of Cu-based metal-organic frameworks (Cu-MOFs) as nanoprobes for NO detection and as a catalyst for the generation of NO from the biologically occurring substrate, S-nitrosothiols (RSNOs). The paramagnetic Cu2+ in the MOFs could quench the luminescence of triphenylamine; Cu-MOFs only exhibited weak emission at 450 nm. Upon the addition of NO, the paramagnetic Cu2+ was reduced to diamagnetic Cu+, and thus the luminescence was recovered directly. Cu-MOFs exhibited high selectivity for other species in the reaction system, including NO2-, H2O2, AA, NO3- and 1O2. More significantly, the Cu+ can react with s-nitrosoglutathione (GSNO), s-nitrosocysteine (CysNO), and s-nitrosocysteamine (CysamNO) to generate NO and then oxidize to Cu2+-MOFs with quenched luminescence, respectively, and thus the catalysis is inhibited, noted as a self-controlled process. The Cu-MOFs catalyst was confirmed by powder X-ray diffraction to remain structurally intact in aqueous environments. The Cu-MOFs have been successfully employed in the biological imaging of NO in living cells. The bifunctional MOFs could offer a novel platform for the real-time monitoring of NO species, provide potential for exploiting NO in cancer therapy and improve the methodologies to elucidate the NO-related biological processes.
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Affiliation(s)
- Pinghua Ling
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China.
| | - Xianping Gao
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China.
| | - Xinyu Sun
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China.
| | - Pei Yang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China.
| | - Feng Gao
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China.
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Ling P, Gao X, Zang X, Sun X, Gao F. Understanding the Performance of Metal-Organic Frameworks for Modulation of Nitric oxide Release from S-nitrosothiols. Chem Asian J 2022; 17:e202101358. [PMID: 35178879 DOI: 10.1002/asia.202101358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/25/2022] [Indexed: 11/09/2022]
Abstract
S-Nitrosothiols (RSNOs) which were important intermediates in circulating reservoirs of nitric oxide (NO), transport and numerous NO signaling pathway plays intricate roles in the etiology of several pathologies. However, it is still a challenge to control release of NO from nitrosylated compounds under physiological pH. In this paper, for the first time, we report the catalytic activity and kinetic study for modulation of NO release from RSNOs by an array of metal-organic frameworks (MOFs) (M-MOF (M'); M = Zr, Cu; and M' = Cu, Pd, no metal) under physiological conditions via time-dependent absorbance spectra. The result showed that metal active site and the morphology and pore size of MOFs exhibited different activities toward RSNOs. The order of catalytic activity of these MOFs toward RSNOs is ordered in the decreasing sequence: Cu-MOF(Pd) ˃ Cu-MOF(Cu) ˃ Cu-MOF(no metal) ˃ Zr-MOF(Pd) ˃ Zr-MOF(Cu) ˃ Zr-MOF(no metal). In addition, Zr-MOF(Pd) was as model for cell experiment, demonstrated Zr-MOF(Pd) could react with RSNOs to generate NO in the complex environment of cell. Collectively, these findings establish a platform for MOFs-based, highly catalyze RSNOs in biological samples, a powerful tool for expanding the knowledge of the biology and chemistry of NO-mediated phenomena.
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Affiliation(s)
- Pinghua Ling
- Anhui Normal University, college of chemistry and materials, 189 Jiuhua South Road, 241002, wuhu, CHINA
| | - Xianping Gao
- Anhui Normal University, college of Chemistry and Materials Science, 189 Jiuhua South Road, Wuhu, CHINA
| | - Xiaona Zang
- Anhui Normal University, College of Chemistry and Materials Science, 189 Jiuhua South Road, Wuhu, CHINA
| | - Xinyu Sun
- Anhui Normal University, College of Chemistry and Materials Science, 189 Jiuhua South Road, Wuhu, CHINA
| | - Feng Gao
- Anhui Normal University, College of Chemistry and Materials Science, 189 Jiuhua South Road, Wuhu, CHINA
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Mosqueira M, Konietzny R, Andresen C, Wang C, H A Fink R. Cardiomyocyte depolarization triggers NOS-dependent NO transient after calcium release, reducing the subsequent calcium transient. Basic Res Cardiol 2021; 116:18. [PMID: 33728868 PMCID: PMC7966140 DOI: 10.1007/s00395-021-00860-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 03/09/2021] [Indexed: 12/18/2022]
Abstract
Cardiac excitation-contraction coupling and metabolic and signaling activities are centrally modulated by nitric oxide (NO), which is produced by one of three NO synthases (NOSs). Despite the significant role of NO in cardiac Ca2+ homeostasis regulation under different pathophysiological conditions, such as Duchenne muscular dystrophy (DMD), no precise method describes the production, source or effect of NO through two NO signaling pathways: soluble guanylate cyclase-protein kinase G (NO-sGC-PKG) and S-nitrosylation (SNO). Using a novel strategy involving isolated murine cardiomyocytes loaded with a copper-based dye highly specific for NO, we observed a single transient NO production signal after each electrical stimulation event. The NO transient signal started 67.5 ms after the beginning of Rhod-2 Ca2+ transient signal and lasted for approximately 430 ms. Specific NOS isoform blockers or NO scavengers significantly inhibited the NO transient, suggesting that wild-type (WT) cardiomyocytes produce nNOS-dependent NO transients. Conversely, NO transient in mdx cardiomyocyte, a mouse model of DMD, was dependent on inducible NOS (iNOS) and endothelial (eNOS). In a consecutive stimulation protocol, the nNOS-dependent NO transient in WT cardiomyocytes significantly reduced the next Ca2+ transient via NO-sGC-PKG. In mdx cardiomyocytes, this inhibitory effect was iNOS- and eNOS-dependent and occurred through the SNO pathway. Basal NO production was nNOS- and iNOS-dependent in WT cardiomyocytes and eNOS- and iNOS-dependent in mdx cardiomyocytes. These results showed cardiomyocyte produces NO isoform-dependent transients upon membrane depolarization at the millisecond time scale activating a specific signaling pathway to negatively modulate the subsequent Ca2+ transient.
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Affiliation(s)
- Matias Mosqueira
- Cardio-Ventilatory Muscle Physiology Laboratory, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, Im Neuenheimer Feld 326, R. 305, 69120, Heidelberg, Germany.
- Medical Biophysics Unit, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, 69120, Heidelberg, Germany.
| | - Roland Konietzny
- Cardio-Ventilatory Muscle Physiology Laboratory, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, Im Neuenheimer Feld 326, R. 305, 69120, Heidelberg, Germany
- Medical Biophysics Unit, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, 69120, Heidelberg, Germany
| | - Carolin Andresen
- Cardio-Ventilatory Muscle Physiology Laboratory, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, Im Neuenheimer Feld 326, R. 305, 69120, Heidelberg, Germany
- Medical Biophysics Unit, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, 69120, Heidelberg, Germany
- Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), Heidelberg, Germany
- Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Chao Wang
- Cardio-Ventilatory Muscle Physiology Laboratory, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, Im Neuenheimer Feld 326, R. 305, 69120, Heidelberg, Germany
- Medical Biophysics Unit, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, 69120, Heidelberg, Germany
- Cardiovascular Department, Wuhan No. 1 Hospital, Hubei, China
| | - Rainer H A Fink
- Medical Biophysics Unit, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, 69120, Heidelberg, Germany
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Wang L, Zhang J, An X, Duan H. Recent progress on the organic and metal complex-based fluorescent probes for monitoring nitric oxide in living biological systems. Org Biomol Chem 2020; 18:1522-1549. [PMID: 31995085 DOI: 10.1039/c9ob02561h] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nitric oxide (NO) is an important gaseous signaling molecule related to various human diseases. To investigate the biological functions of NO, many strategies have been developed for real-time monitoring the NO levels in biological systems. Among these strategies, fluorescent probes are considered to be one of the most efficient and applicable methods owing to their excellent sensitivity and selectivity, high spatiotemporal resolution, noninvasiveness, and experimental convenience. Therefore, great efforts have been paid to the design, synthesis, and fluorescence investigation of novel NO fluorescent probes in the past several years. However, few of them exhibit practical applications owing to the low concentration, short half-life, and rapid diffusion characteristics of NO in biological systems. Rational design of NO fluorescent probes with excellent selectivity and sensitivity, low cytotoxicity, long-lived fluorescent emission, and low background interference is still a challenge for scientists all over the word. To provide spatial-temporal information, this article focuses on the progress made in the organic and metal complex-based NO fluorescent probes during the past five years. The key structural elements and sensing mechanisms of NO fluorescent probes are discussed. Some novel ratiometric, luminescence, and photoacoustic probes with low background interference and deep tissue penetrating ability are mentioned. All these probes have been used for imaging exogenous and endogenous NO in cells and animal models. More importantly, this article also describes the development of multi-functional NO fluorescent probes, such as organelle targeting probes, dual-analysis probes, and probe-drug conjugates, which will inspire the design of various functional fluorescent probes.
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Affiliation(s)
- Lizhen Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, Shandong Province, China. and Engineering Research Center of Zebrafish Models for Human Diseases and Drug Screening of Shandong Province, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, Shandong Province, China
| | - Juan Zhang
- Shandong Jinan Qilu Science Patent Office Ltd, Ji'nan 250014, Shandong Province, China
| | - Xue An
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250300, Shandong Province, China.
| | - Hongdong Duan
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250300, Shandong Province, China.
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6
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Alday J, Mazzeo A, Suarez S. Selective detection of gasotransmitters using fluorescent probes based on transition metal complexes. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119696] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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7
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Islam ASM, Bhowmick R, Chandra Garain B, Katarkar A, Ali M. Nitric Oxide Sensing through 1,2,3,4-Oxatriazole Formation from Acylhydrazide: A Kinetic Study. J Org Chem 2018; 83:13287-13295. [DOI: 10.1021/acs.joc.8b02110] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Abu Saleh Musha Islam
- Department of Chemistry, Jadavpur University, 188 Raja S.C. Mallick Road, Kolkata 700 032, India
| | - Rahul Bhowmick
- Department of Chemistry, Jadavpur University, 188 Raja S.C. Mallick Road, Kolkata 700 032, India
| | - Bidhan Chandra Garain
- Department of Chemistry, Jadavpur University, 188 Raja S.C. Mallick Road, Kolkata 700 032, India
| | - Atul Katarkar
- Department of Biochemistry, University of Lausanne, Ch. des Boveresses 155, 1066 Epalinges, Switzerland
| | - Mahammad Ali
- Department of Chemistry, Jadavpur University, 188 Raja S.C. Mallick Road, Kolkata 700 032, India
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Toussaint SNW, Calkins RT, Lee S, Michel BW. Olefin Metathesis-Based Fluorescent Probes for the Selective Detection of Ethylene in Live Cells. J Am Chem Soc 2018; 140:13151-13155. [DOI: 10.1021/jacs.8b05191] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Sacha N. W. Toussaint
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
| | - Ryan T. Calkins
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
| | - Sumin Lee
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Brian W. Michel
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80210, United States
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9
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Maiti D, Islam ASM, Sasmal M, Prodhan C, Ali M. Selective sensing of nitric oxide by a 9,10-phenanthroquinone-pyridoxal based fluorophore. Photochem Photobiol Sci 2018; 17:1213-1221. [PMID: 30065978 DOI: 10.1039/c8pp00115d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this article, we have designed and synthesized a new, convenient and efficient phenanthroquinone-pyridoxal based fluorogenic probe PQPY, highly suitable for the selective and sensitive detection of nitric oxide in an aerated aqueous (7 : 3/H2O : MeCN) medium at pH 7.0 (10 mM HEPES buffer). Upon addition of nitric oxide, this probe exhibits emission in the green region (λem = 505 nm) which is ascribed to ICT (intramolecular charge transfer) from the phenanthroquinone moiety to the imidazole -N-N[double bond, length as m-dash]O fragment. The apparent formation constant, Kf, of the NO product of the ligand is (1.00 ± 0.2) × 105 M-1 and the LOD is 78 nM. The substantial enhancement of the life-time of the ligand (τ0 = 2.68 ns) occurs due to binding with nitric oxide (τ0 = 3.96 ns). This probe is low cytotoxicity, cell permeable and suitable for living cell imaging application.
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Affiliation(s)
- Debjani Maiti
- Department of Chemistry, Jadavpur University, 188 Raja S.C. Mallick Road, Kolkata 700 032, India.
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Alam R, Islam ASM, Sasmal M, Katarkar A, Ali M. A rhodamine-based turn-on nitric oxide sensor in aqueous medium with endogenous cell imaging: an unusual formation of nitrosohydroxylamine. Org Biomol Chem 2018; 16:3910-3920. [DOI: 10.1039/c8ob00822a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The sensor L3 selectively recognizes NO in purely aqueous medium with an unusual formation of nitrosohydroxylamine with a turn-on fluorescence response which might be suitable for in vivo application.
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Affiliation(s)
- Rabiul Alam
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
| | | | - Mihir Sasmal
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
| | - Atul Katarkar
- Department of Molecular & Human Genetics Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
| | - Mahammad Ali
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
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Au-Yeung HY, Chan CY, Tong KY, Yu ZH. Copper-based reactions in analyte-responsive fluorescent probes for biological applications. J Inorg Biochem 2017; 177:300-312. [DOI: 10.1016/j.jinorgbio.2017.07.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 06/29/2017] [Accepted: 07/01/2017] [Indexed: 02/04/2023]
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12
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An aryl-bridged dixanthene scaffold for building multinucleating ligands and supramolecular assemblies: Syntheses and structures. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.09.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Islam ASM, Bhowmick R, Pal K, Katarkar A, Chaudhuri K, Ali M. A Smart Molecule for Selective Sensing of Nitric Oxide: Conversion of NO to HSNO; Relevance of Biological HSNO Formation. Inorg Chem 2017; 56:4324-4331. [DOI: 10.1021/acs.inorgchem.6b02787] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Abu Saleh Musha Islam
- Department of Chemistry, Jadavpur University, 188 Raja S.C. Mallick Road, Kolkata 700 032, India
| | - Rahul Bhowmick
- Department of Chemistry, Jadavpur University, 188 Raja S.C. Mallick Road, Kolkata 700 032, India
| | - Kaberi Pal
- Department of Chemistry, Jadavpur University, 188 Raja S.C. Mallick Road, Kolkata 700 032, India
| | - Atul Katarkar
- Molecular & Human Genetics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mallick Road, Kolkata 700 032, India
| | - Keya Chaudhuri
- Molecular & Human Genetics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mallick Road, Kolkata 700 032, India
| | - Mahammad Ali
- Department of Chemistry, Jadavpur University, 188 Raja S.C. Mallick Road, Kolkata 700 032, India
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15
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Yang B, Liu Y, Li Z, Lei L, Zhou J, Zhang X. Preferential adsorption of pentachlorophenol from chlorophenols-containing wastewater using N-doped ordered mesoporous carbon. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:1482-1491. [PMID: 26374540 DOI: 10.1007/s11356-015-5384-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 09/07/2015] [Indexed: 06/05/2023]
Abstract
Preferential removal of pentachlorophenol (PCP) from chlorophenols-containing wastewater has been attracted more attentions in wastewater treatment, since it is one of the most toxic pollutants. The adsorbent of N-doped ordered mesoporous carbon (M-OMC) with high BET surface area of 1901 m(2)/g, large pore volume of 1.64 cm(3)/g and uniform pore size of 3.45 nm has been successfully synthesized via evaporation-induced self-assembly (EISA) method. The effects of solution pH, pore structure of adsorbent and their surface chemical properties on PCP adsorption by M-OMC were investigated in comparison with ordered mesoporous carbon (OMC), and much higher PCP adsorption capacities of M-OMC were obtained. The significantly preferential adsorption of PCP was achieved in the treatment of tri-component wastewater including PCP, p-chlorophenol (CP) and 2.4.6-trichlorophenol (TCP), and its adsorption process well fitted the pseudo-second-order kinetics model and the Langmuir isotherm. The initial sorption rate of PCP was 103.5 μmol/(g/min), which was 2.97 times of TCP. It may be attributed to the intensification of π-π interaction between PCP and M-OMC with the nitrogen functional groups. Therefore, M-OMC is promising for removal of PCP in the adsorption pretreatment of chlorophenols-containing wastewater.
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Affiliation(s)
- Bin Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yunpeng Liu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhongjian Li
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Lecheng Lei
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jie Zhou
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.
- Department of Environmental Science and Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China.
| | - Xingwang Zhang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.
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16
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Barzegar Amiri Olia M, Zavras A, Schiesser CH, Alexander SA. Blue ‘turn-on’ fluorescent probes for the direct detection of free radicals and nitric oxide in Pseudomonas aeruginosa biofilms. Org Biomol Chem 2016; 14:2272-81. [DOI: 10.1039/c5ob02441b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Novel blue cell-permeable ‘turn-on’ fluorescent probes have been developed to visualize and quantify nitric oxide and free radical formation and reaction within aPseudomonas aeruginosabiofilm.
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Affiliation(s)
- Mina Barzegar Amiri Olia
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology
- Australia
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute
- The University of Melbourne
- Victoria
| | - Athanasios Zavras
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology
- Australia
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute
- The University of Melbourne
- Victoria
| | - Carl H. Schiesser
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology
- Australia
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute
- The University of Melbourne
- Victoria
| | - Stefanie-Ann Alexander
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology
- Australia
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute
- The University of Melbourne
- Victoria
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17
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Rivera-Fuentes P, Lippard SJ. Metal-based optical probes for live cell imaging of nitroxyl (HNO). Acc Chem Res 2015; 48:2927-34. [PMID: 26550842 DOI: 10.1021/acs.accounts.5b00388] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Nitroxyl (HNO) is a biological signaling agent that displays distinctive reactivity compared to nitric oxide (NO). As a consequence, these two reactive nitrogen species trigger different physiological responses. Selective detection of HNO over NO has been a challenge for chemists, and several fluorogenic molecular probes have been recently developed with that goal in mind. Common constructs take advantage of the HNO-induced reduction of Cu(II) to Cu(I). The sensing mechanism of such probes relies on the ability of the unpaired electron in a d orbital of the Cu(II) center to quench the fluorescence of a photoemissive ligand by either an electron or energy transfer mechanism. Experimental and theoretical mechanistic studies suggest that proton-coupled electron transfer mediates this process, and careful tuning of the copper coordination environment has led to sensors with optimized selectivity and kinetics. The current optical probes cover the visible and near-infrared regions of the spectrum. This palette of sensors comprises structurally and functionally diverse fluorophores such as coumarin (blue/green emission), boron dipyrromethane (BODIPY, green emission), benzoresorufin (red emission), and dihydroxanthenes (near-infrared emission). Many of these sensors have been successfully applied to detect HNO production in live cells. For example, copper-based optical probes have been used to detect HNO production in live mammalian cells that have been treated with H2S and various nitrosating agents. These studies have established a link between HSNO, the smallest S-nitrosothiol, and HNO. In addition, a near-infrared HNO sensor has been used to perform multicolor/multianalyte microscopy, revealing that exogenously applied HNO elevates the concentration of intracellular mobile zinc. This mobilization of zinc ions is presumably a consequence of nitrosation of cysteine residues in zinc-chelating proteins such as metallothionein. Future challenges for the optical imaging of HNO include devising probes that can detect HNO reversibly, especially because ratiometric imaging can only report equilibrium concentrations when the sensing event is reversible. Another important aspect that needs to be addressed is the creation of probes that can sense HNO in specific subcellular locations. These tools would be useful to identify the organelles in which HNO is produced in mammalian cells and probe the intracellular signaling networks in which this reactive nitrogen species is involved. In addition, near-infrared emitting probes might be applied to detect HNO in thicker specimens, such as acute tissue slices and even live animals, enabling the investigation of the roles of HNO in physiological or pathological conditions in multicellular systems.
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Affiliation(s)
- Pablo Rivera-Fuentes
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Stephen J. Lippard
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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18
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A copper(II) complex as selective turn-on fluorosensor for nitric oxide and its intracellular application. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.08.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Loas A, Radford RJ, Deliz Liang A, Lippard SJ. Solid-phase synthesis provides a modular, lysine-based platform for fluorescent discrimination of nitroxyl and biological thiols. Chem Sci 2015; 6:4131-4140. [PMID: 28717469 PMCID: PMC5497726 DOI: 10.1039/c5sc00880h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 05/05/2015] [Indexed: 11/24/2022] Open
Abstract
A synthetically facile solid-phase approach yields fluorescent Cu(ii)-based lysine conjugates which selectively detect nitroxyl and thiols in live cells.
We describe a modular, synthetically facile solid-phase approach aimed at separating the fluorescent reporter and binding unit of small-molecule metal-based sensors. The first representatives contain a lysine backbone functionalized with a tetramethylrhodamine fluorophore, and they operate by modulating the oxidation state of a copper ion ligated to an [N4] (cyclam) or an [N2O] (quinoline-phenolate) moiety. We demonstrate the selectivity of their Cu(ii) complexes for sensing nitroxyl (HNO) and thiols (RSH), respectively, and investigate the mechanism responsible for the observed reactivity in each case. The two lysine conjugates are cell permeable in the active, Cu(ii)-bound forms and retain their analyte selectivity intracellularly, even in the presence of interfering species such as nitric oxide, nitrosothiols, and hydrogen sulfide. Moreover, we apply the new probes to discriminate between distinct levels of intracellular HNO and RSH generated upon stimulation of live HeLa cells with ascorbate and hydrogen sulfide, respectively. The successful implementation of the lysine-based sensors to gain insight into biosynthetic pathways validates the method as a versatile tool for producing libraries of analogues with minimal synthetic effort.
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Affiliation(s)
- Andrei Loas
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , MA 02139 , USA . ; ; Tel: +1-617-253-1892
| | - Robert J Radford
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , MA 02139 , USA . ; ; Tel: +1-617-253-1892
| | - Alexandria Deliz Liang
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , MA 02139 , USA . ; ; Tel: +1-617-253-1892
| | - Stephen J Lippard
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , MA 02139 , USA . ; ; Tel: +1-617-253-1892
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Zhang H, Liu R, Tan Y, Xie WH, Lei H, Cheung HY, Sun H. A FRET-based ratiometric fluorescent probe for nitroxyl detection in living cells. ACS APPLIED MATERIALS & INTERFACES 2015; 7:5438-43. [PMID: 25658137 DOI: 10.1021/am508987v] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
HNO has recently been found to possess distinct biological functions from NO. Studying the biological functions of HNO calls for the development of sensitive and selective fluorescent probes. Herein, we designed and synthesized a FRET-based ratiometric probe to detect HNO in living cells. Our studies revealed that the probe is capable of detecting HNO in a rapid and ratiometric manner under physiological conditions. In bioimaging studies, the probe displayed a clear color change from blue to green when treated with HNO.
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Affiliation(s)
- Huatang Zhang
- Department of Biology and Chemistry, City University of Hong Kong , 83 Tat Chee Avenue, Kowloon, Hong Kong, People's Republic of China
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21
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Victor E, Kim S, Lippard SJ. Synthesis of Bis(imidazole) Metal Complexes and Their Use in Rapid NO Detection and Quantification Devices. Inorg Chem 2014; 53:12809-21. [DOI: 10.1021/ic501765g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Eric Victor
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Sunghee Kim
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Stephen J. Lippard
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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22
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Sivaraman G, Anand T, Chellappa D. A Fluorescence Switch for the Detection of Nitric Oxide and Histidine and Its Application in Live Cell Imaging. Chempluschem 2014. [DOI: 10.1002/cplu.201402217] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Choi AWT, Yim VMW, Liu HW, Lo KKW. Rhenium(I) Polypyridine Diamine Complexes as Intracellular Phosphorogenic Sensors: Synthesis, Characterization, Emissive Behavior, Biological Properties, and Nitric Oxide Sensing. Chemistry 2014; 20:9633-42. [DOI: 10.1002/chem.201402502] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Indexed: 11/09/2022]
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Muthuraj B, Deshmukh R, Trivedi V, Iyer PK. Highly selective probe detects Cu2+ and endogenous NO gas in living cell. ACS APPLIED MATERIALS & INTERFACES 2014; 6:6562-9. [PMID: 24703409 DOI: 10.1021/am501476w] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The rapid and highly sensitive detection of extremely short-lived nitric oxide (NO) gas generated in vivo by a water-soluble fluorescein derivative is developed. This assay system comprises of indole-3-carboxaldehyde functionalized fluorescein hydrazone (FI) assay which displays a typically high absorption at 492 and 620 nm in the presence of Cu2+ and also shows FRET induced fluorescence turn-on exclusively with Cu2+. FI selectively detects Cu2+ in vivo and in vitro by the "turn-on" mechanism followed by fluorescence "turn-off" with NO gas generated by the lipopolysaccharide (LPS) action. The in vivo experiment performed in the cellular system indicates that FI loaded RAW264.7 cells showed bright fluorescence in the presence of Cu2+, while other metals did not influence the FI fluorescence. In addition, the fluorescence of FI-Cu2+ was efficiently quenched by NO generated in macrophages through LPS stimulation. FI demonstrates characteristic "turn-on" behavior in the presence of Cu2+ via spirolactom ring-opening, while other metals such as Na+, K+, Ca2+, Cr3+, Mn2+, Fe3+, Fe2+, Co2+, Ni2+, Zn2+, Cd2+, Hg2+, and Ag+ did not influence FI fluorescence even at very high concentration. Further, the FI-Cu2+ complex fluorescence was not quenched with any anions or amino acids but totally quenched by NO and the paramagnetic nature of Cu2+ ion converted into the diamagnetic nature when reduced to Cu1+. FI and the FI-Cu2+ complex are nontoxic to the cellular system and have high potential for biomedical applications.
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Affiliation(s)
- Balakrishnan Muthuraj
- Department of Chemistry, Indian Institute of Technology , Guwahati-781039, Assam, India
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25
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Anand T, Sivaraman G, Chellappa D. Quinazoline copper(II) ensemble as turn-on fluorescence sensor for cysteine and chemodosimeter for NO. J Photochem Photobiol A Chem 2014. [DOI: 10.1016/j.jphotochem.2014.02.015] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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26
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Lo KKW, Li SPY. Utilization of the photophysical and photochemical properties of phosphorescent transition metal complexes in the development of photofunctional cellular sensors, imaging reagents, and cytotoxic agents. RSC Adv 2014. [DOI: 10.1039/c3ra47611a] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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27
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Vegesna GK, Sripathi SR, Zhang J, Zhu S, He W, Luo FT, Jahng WJ, Frost M, Liu H. Highly water-soluble BODIPY-based fluorescent probe for sensitive and selective detection of nitric oxide in living cells. ACS APPLIED MATERIALS & INTERFACES 2013; 5:4107-12. [PMID: 23614822 DOI: 10.1021/am303247s] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A highly water-soluble BODIPY dye bearing electron-rich o-diaminophenyl groups at 2,6-positions was prepared as a highly sensitive and selective fluorescent probe for detection of nitric oxide (NO) in living cells. The fluorescent probe displays an extremely weak fluorescence with fluorescence quantum yield of 0.001 in 10 mM phosphate buffer (pH 7.0) in the absence of NO as two electron-rich o-diaminophenyl groups at 2,6-positions significantly quench the fluorescence of the BODIPY dye via photoinduced electron transfer mechanism. The presence of NO in cells enhances the dye fluorescence dramatically. The fluorescent probe demonstrates excellent water solubility, membrane permeability, and compatibility with living cells for sensitive detection of NO.
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Affiliation(s)
- Giri K Vegesna
- Department of Chemistry, Michigan Technological University, Houghton, Michigan 49931, United States
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28
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Apfel UP, Buccella D, Wilson JJ, Lippard SJ. Detection of Nitric Oxide and Nitroxyl with Benzoresorufin-Based Fluorescent Sensors. Inorg Chem 2013; 52:3285-94. [DOI: 10.1021/ic302793w] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ulf-Peter Apfel
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Daniela Buccella
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Chemistry, New York University, New York, New York
10003, United States
| | - Justin J. Wilson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Stephen J. Lippard
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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29
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Choi AWT, Poon CS, Liu HW, Cheng HK, Lo KKW. Rhenium(i) polypyridine complexes functionalized with a diaminoaromatic moiety as phosphorescent sensors for nitric oxide. NEW J CHEM 2013. [DOI: 10.1039/c3nj00033h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Mechanisms of Nitric Oxide Reactions Mediated by Biologically Relevant Metal Centers. NITROSYL COMPLEXES IN INORGANIC CHEMISTRY, BIOCHEMISTRY AND MEDICINE II 2013. [DOI: 10.1007/430_2013_117] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Meng Q, Zhang Y, Hou D, Xin G, Li T, He C, Duan C. Fluorimetric and colorimetric detection of nitric oxide in living cells by rhodamine derivatives assisted by Cu2+. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.11.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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33
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Lieb D, Friedel FC, Yawer M, Zahl A, Khusniyarov MM, Heinemann FW, Ivanović-Burmazović I. Dinuclear Seven-Coordinate Mn(II) Complexes: Effect of Manganese(II)-Hydroxo Species on Water Exchange and Superoxide Dismutase Activity. Inorg Chem 2012; 52:222-36. [DOI: 10.1021/ic301714d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Dominik Lieb
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Felix C. Friedel
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Mirza Yawer
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Achim Zahl
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Marat M. Khusniyarov
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Frank W. Heinemann
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Ivana Ivanović-Burmazović
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
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34
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Pluth MD, Tomat E, Lippard SJ. Biochemistry of mobile zinc and nitric oxide revealed by fluorescent sensors. Annu Rev Biochem 2011; 80:333-55. [PMID: 21675918 DOI: 10.1146/annurev-biochem-061009-091643] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Biological mobile zinc and nitric oxide (NO) are two prominent examples of inorganic compounds involved in numerous signaling pathways in living systems. In the past decade, a synergy of regulation, signaling, and translocation of these two species has emerged in several areas of human physiology, providing additional incentive for developing adequate detection systems for Zn(II) ions and NO in biological specimens. Fluorescent probes for both of these bioinorganic analytes provide excellent tools for their detection, with high spatial and temporal resolution. We review the most widely used fluorescent sensors for biological zinc and nitric oxide, together with promising new developments and unmet needs of contemporary Zn(II) and NO biological imaging. The interplay between zinc and nitric oxide in the nervous, cardiovascular, and immune systems is highlighted to illustrate the contributions of selective fluorescent probes to the study of these two important bioinorganic analytes.
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Affiliation(s)
- Michael D Pluth
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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36
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Generation, Translocation, and Action of Nitric Oxide in Living Systems. ACTA ACUST UNITED AC 2011; 18:1211-20. [DOI: 10.1016/j.chembiol.2011.09.009] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Revised: 09/19/2011] [Accepted: 09/20/2011] [Indexed: 01/01/2023]
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37
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Pluth MD, Chan MR, McQuade LE, Lippard SJ. Seminaphthofluorescein-based fluorescent probes for imaging nitric oxide in live cells. Inorg Chem 2011; 50:9385-92. [PMID: 21895023 DOI: 10.1021/ic200986v] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fluorescent turn-on probes for nitric oxide based on seminaphthofluorescein scaffolds were prepared and spectroscopically characterized. The Cu(II) complexes of these fluorescent probes react with NO under anaerobic conditions to yield a 20-45-fold increase in integrated emission. The seminaphthofluorescein-based probes emit at longer wavelengths than the parent FL1 and FL2 fluorescein-based generations of NO probes, maintaining emission maxima between 550 and 625 nm. The emission profiles depend on the excitation wavelength; maximum fluorescence turn-on is achieved at excitations between 535 and 575 nm. The probes are highly selective for NO over other biologically relevant reactive nitrogen and oxygen species including NO(3)(-), NO(2)(-), HNO, ONOO(-), NO(2), OCl(-), and H(2)O(2). The seminaphthofluorescein-based probes can be used to visualize endogenously produced NO in live cells, as demonstrated using Raw 264.7 macrophages.
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Affiliation(s)
- Michael D Pluth
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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38
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Hydrogen peroxide differentially modulates cardiac myocyte nitric oxide synthesis. Proc Natl Acad Sci U S A 2011; 108:15792-7. [PMID: 21896719 DOI: 10.1073/pnas.1111331108] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Nitric oxide (NO) and hydrogen peroxide (H(2)O(2)) are synthesized within cardiac myocytes and play key roles in modulating cardiovascular signaling. Cardiac myocytes contain both the endothelial (eNOS) and neuronal (nNOS) NO synthases, but the differential roles of these NOS isoforms and the interplay of reactive oxygen species and reactive nitrogen species in cardiac signaling pathways are poorly understood. Using a recently developed NO chemical sensor [Cu(2)(FL2E)] to study adult cardiac myocytes from wild-type, eNOS(null), and nNOS(null) mice, we discovered that physiological concentrations of H(2)O(2) activate eNOS but not nNOS. H(2)O(2)-stimulated eNOS activation depends on phosphorylation of both the AMP-activated protein kinase and kinase Akt, and leads to the robust phosphorylation of eNOS. Cardiac myocytes isolated from mice infected with lentivirus expressing the recently developed H(2)O(2) biosensor HyPer2 show marked H(2)O(2) synthesis when stimulated by angiotensin II, but not following β-adrenergic receptor activation. We discovered that the angiotensin-II-promoted increase in cardiac myocyte contractility is dependent on H(2)O(2), whereas β-adrenergic contractile responses occur independently of H(2)O(2) signaling. These studies establish differential roles for H(2)O(2) in control of cardiac contractility and receptor-dependent NOS activation in the heart, and they identify new points for modulation of NO signaling responses by oxidant stress.
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Hu X, Wang J, Zhu X, Dong D, Zhang X, Wu S, Duan C. A copper(ii) rhodamine complex with a tripodal ligand as a highly selective fluorescence imaging agent for nitric oxide. Chem Commun (Camb) 2011; 47:11507-9. [DOI: 10.1039/c1cc14032a] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Zhang J, Boghossian AA, Barone PW, Rwei A, Kim JH, Lin D, Heller DA, Hilmer AJ, Nair N, Reuel NF, Strano MS. Single molecule detection of nitric oxide enabled by d(AT)15 DNA adsorbed to near infrared fluorescent single-walled carbon nanotubes. J Am Chem Soc 2010; 133:567-81. [PMID: 21142158 DOI: 10.1021/ja1084942] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report the selective detection of single nitric oxide (NO) molecules using a specific DNA sequence of d(AT)(15) oligonucleotides, adsorbed to an array of near-infrared fluorescent semiconducting single-walled carbon nanotubes (AT(15)-SWNT). While SWNT suspended with eight other variant DNA sequences show fluorescence quenching or enhancement from analytes such as dopamine, NADH, L-ascorbic acid, and riboflavin, d(AT)(15) imparts SWNT with a distinct selectivity toward NO. In contrast, the electrostatically neutral polyvinyl alcohol enables no response to nitric oxide, but exhibits fluorescent enhancement to other molecules in the tested library. For AT(15)-SWNT, a stepwise fluorescence decrease is observed when the nanotubes are exposed to NO, reporting the dynamics of single-molecule NO adsorption via SWNT exciton quenching. We describe these quenching traces using a birth-and-death Markov model, and the maximum likelihood estimator of adsorption and desorption rates of NO is derived. Applying the method to simulated traces indicates that the resulting error in the estimated rate constants is less than 5% under our experimental conditions, allowing for calibration using a series of NO concentrations. As expected, the adsorption rate is found to be linearly proportional to NO concentration, and the intrinsic single-site NO adsorption rate constant is 0.001 s(-1) μM NO(-1). The ability to detect nitric oxide quantitatively at the single-molecule level may find applications in new cellular assays for the study of nitric oxide carcinogenesis and chemical signaling, as well as medical diagnostics for inflammation.
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Affiliation(s)
- Jingqing Zhang
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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