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Gaur A, Balasubramanian S. Liquid-Vapor Interface of Aqueous Ethylene Glycol Solutions: A Molecular Dynamics Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:230-240. [PMID: 38150706 DOI: 10.1021/acs.langmuir.3c02431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
While the organic constituent in an aqueous binary solution enriches its liquid-vapor (l-v) interface, the extent of enrichment can depend nonlinearly on its mole fraction. A microscopic quantification and rationalization of this behavior are crucial to understand the dependence of properties such as surface tension and evaporation rate of the solution on its composition. Extensive all-atom molecular dynamics simulations of aqueous ethylene glycol (EG) solutions show that the composition of the solution at the l-v interface deviates the most from that in the bulk solution at an EG mole fraction of 0.3. The population of EG molecules with their central C-C dihedral in the gauche conformation was found to be higher at the l-v interface than that in the bulk solution to facilitate the orientation of its hydrophobic methyl groups toward the vapor phase. Free energy calculations reveal that in dilute EG solutions, an EG molecule is most stable at the l-v interface. The behavior of vapor pressure in aqueous EG solutions is ideal and follows Raoult's law, while in contrast, the aqueous solution of dimethyl sulfoxide does not. A rationale for the same is provided through the orientational distribution of interfacial water molecules in the respective solutions.
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Affiliation(s)
- Anjali Gaur
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560 064, India
| | - Sundaram Balasubramanian
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560 064, India
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2
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Rajagopal R, Hong MK, Ziegler LD, Erramilli S, Narayan O. Conjugate Acid–Base Interaction Driven Phase Transition at a 2D Air–Water Interface. J Phys Chem B 2021; 125:6330-6337. [DOI: 10.1021/acs.jpcb.1c02388] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- R. Rajagopal
- Department of Physics, Boston University, Boston, Massachusetts 02215, United States
| | - M. K. Hong
- Department of Physics, Boston University, Boston, Massachusetts 02215, United States
| | - L. D. Ziegler
- Department of Chemistry and The Photonics Center, Boston University, Boston, Massachusetts 02215, United States
| | - S. Erramilli
- Department of Physics, Boston University, Boston, Massachusetts 02215, United States
| | - Onuttom Narayan
- Physics Department, University of California, Santa Cruz, California 95064, United States
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3
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Zhang Y, Apsokardu MJ, Kerecman DE, Achtenhagen M, Johnston MV. Reaction Kinetics of Organic Aerosol Studied by Droplet Assisted Ionization: Enhanced Reactivity in Droplets Relative to Bulk Solution. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:46-54. [PMID: 32469218 DOI: 10.1021/jasms.0c00057] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Droplet Assisted Ionization (DAI) is a relatively new method for online analysis of aerosol droplets that enables measurement of the rate of an aerosol reaction. Here, we used DAI to study the reaction of carbonyl functionalities in secondary organic aerosol (SOA) with Girard's T (GT) reagent, a reaction that can potentially be used to enhance the detection of SOA in online measurements. SOA was produced by α-pinene ozonolysis. Particulate matter was collected on a filter, extracted, and mixed with GT reagent in water. While the reaction hardly proceeded at all in bulk solution, products were readily observed with DAI when the solution was atomized to produce micron-size droplets. Varying the droplet transit time between the atomizer and mass spectrometer allowed the reaction rate constant to be determined, which was found to be 4 orders of magnitude faster than what would be expected from bulk solution kinetics. Decreasing the water content of the droplets, either by heating the capillary inlet to the mass spectrometer or by decreasing the relative humidity of the air surrounding the droplets in the transit line from the atomizer to the mass spectrometer, enhanced product formation. The results suggest that reaction enhancement occurs at the droplet surface, which is consistent with previous reports of reaction acceleration during mass spectrometric analysis, where a bulk solution is analyzed with an ionization method that produces aerosol droplets.
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Affiliation(s)
- Yao Zhang
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Michael J Apsokardu
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Devan E Kerecman
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Marcel Achtenhagen
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Murray V Johnston
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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4
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Hou J, Sun G, Liu J, Gao X, Zhang X, Lu Z. Liquid/Vapor Interface of Dimethyl Carbonate-Methanol Binary Mixtures Investigated by Sum Frequency Generation Vibrational Spectroscopy and Molecular Dynamics Simulation. J Phys Chem B 2020; 124:4211-4221. [PMID: 32338908 DOI: 10.1021/acs.jpcb.0c01566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In the present work, the dimethyl carbonate (DMC)-methanol binary mixture was used as a benchmark system to study the molecular structures of the liquid/vapor interface of organic-organic mixtures by sum frequency generation vibrational spectroscopy (SFG-VS) and molecular dynamics (MD) simulations. It was discovered that both the methanol and DMC molecules are anisotropically oriented at the surface, yielding strong SFG-VS signals in the C-H stretching frequency range for both molecules. The detailed analyses of the spectroscopic and MD data reveal that the increase of the methanol bulk concentrations reduces the orientational order of the methyl groups for both the interfacial DMC and methanol molecules but does not significantly affect the orientations of the carbonyl group in DMC. Moreover, no obvious correlations were found between the room-temperature orientations of the surface molecules and the azeotropic mole fraction. The present work paves the road for future investigations on the molecular structures of the liquid/vapor interfaces of other organic-organic mixtures, especially those that are important in industrial separations.
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Affiliation(s)
- Jian Hou
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guanlun Sun
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Jianchuan Liu
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Gao
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Xianyi Zhang
- Anhui Province Key Laboratory of Optoelectronic Material Science and Technology, School of Physics and Electronic Information, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Zhou Lu
- Anhui Province Key Laboratory of Optoelectronic Material Science and Technology, School of Physics and Electronic Information, Anhui Normal University, Wuhu, Anhui 241002, China
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Andino RS, Liu J, Miller CM, Chen X, Devlin SW, Hong MK, Rajagopal R, Erramilli S, Ziegler LD. Anomalous pH-Dependent Enhancement of p-Methyl Benzoic Acid Sum-Frequency Intensities: Cooperative Surface Adsorption Effects. J Phys Chem A 2020; 124:3064-3076. [DOI: 10.1021/acs.jpca.9b10809] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Richard S. Andino
- Department of Chemistry and The Photonics Center, Boston University, Boston, Massachusetts 02215, United States
| | - Jian Liu
- Department of Chemistry and The Photonics Center, Boston University, Boston, Massachusetts 02215, United States
| | - Christina M. Miller
- Department of Chemistry and The Photonics Center, Boston University, Boston, Massachusetts 02215, United States
| | - Xin Chen
- Department of Chemistry and The Photonics Center, Boston University, Boston, Massachusetts 02215, United States
| | - Shane W. Devlin
- Department of Chemistry and The Photonics Center, Boston University, Boston, Massachusetts 02215, United States
| | - M. K. Hong
- Department of Physics, Boston University, Boston, Massachusetts 02215, United States
| | - R. Rajagopal
- Department of Physics, Boston University, Boston, Massachusetts 02215, United States
| | - S. Erramilli
- Department of Physics, Boston University, Boston, Massachusetts 02215, United States
| | - L. D. Ziegler
- Department of Chemistry and The Photonics Center, Boston University, Boston, Massachusetts 02215, United States
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6
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The degenerin region of the human bile acid-sensitive ion channel (BASIC) is involved in channel inhibition by calcium and activation by bile acids. Pflugers Arch 2018; 470:1087-1102. [PMID: 29589117 DOI: 10.1007/s00424-018-2142-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 02/12/2018] [Accepted: 03/13/2018] [Indexed: 12/22/2022]
Abstract
The bile acid-sensitive ion channel (BASIC) is a member of the ENaC/degenerin family of ion channels. It is activated by bile acids and inhibited by extracellular Ca2+. The aim of this study was to explore the molecular mechanisms mediating these effects. The modulation of BASIC function by extracellular Ca2+ and tauro-deoxycholic acid (t-DCA) was studied in Xenopus laevis oocytes heterologously expressing human BASIC using the two-electrode voltage-clamp and outside-out patch-clamp techniques. Substitution of aspartate D444 to alanine or cysteine in the degenerin region of BASIC, a region known to be critically involved in channel gating, resulted in a substantial reduction of BASIC Ca2+ sensitivity. Moreover, mutating D444 or the neighboring alanine (A443) to cysteine significantly reduced the t-DCA-mediated BASIC stimulation. A combined molecular docking/simulation approach demonstrated that t-DCA may temporarily form hydrogen bonds with several amino acid residues including D444 in the outer vestibule of the BASIC pore or in the inter-subunit space. By these interactions, t-DCA may stabilize the open state of the channel. Indeed, single-channel recordings provided evidence that t-DCA activates BASIC by stabilizing the open state of the channel, whereas extracellular Ca2+ inhibits BASIC by stabilizing its closed state. In conclusion, our results highlight the potential role of the degenerin region as a critical regulatory site involved in the functional interaction of Ca2+ and t-DCA with BASIC.
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Wei Q, Zhou D, Bian H. Molecular structure and adsorption of dimethyl sulfoxide at the air/aqueous solution interface probed by non-resonant second harmonic generation. Phys Chem Chem Phys 2018; 20:11758-11767. [DOI: 10.1039/c8cp00099a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, non-resonant second harmonic generation (SHG) was used to investigate the molecular structure and adsorption of DMSO at the air/neat DMSO liquid and air/DMSO aqueous solution interfaces.
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Affiliation(s)
- Qianshun Wei
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an
- China
| | - Dexia Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an
- China
| | - Hongtao Bian
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an
- China
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8
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9
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Abiotic production of sugar phosphates and uridine ribonucleoside in aqueous microdroplets. Proc Natl Acad Sci U S A 2017; 114:12396-12400. [PMID: 29078402 PMCID: PMC5703324 DOI: 10.1073/pnas.1714896114] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Phosphorylation is essential for life. Phosphorylated molecules play diverse functions in cells, including metabolic (e.g., sugar phosphates), structural (e.g., phospholipids), and instructional (e.g., RNA and DNA). In nature, the phosphorylation of sugars via condensation is thermodynamically and kinetically unfavorable in bulk solution. Thus, a key question arising within prebiotic chemistry concerning the origin of life is, “How was phosphorus incorporated into the biological world?” Here, we show that sugar phosphates and a ribonucleoside form spontaneously in microdroplets, without enzymes or an external energy source. Sugar phosphorylation in microdroplets has a lower entropic cost than in bulk solution. Therefore, thermodynamic obstacles of prebiotic condensation reactions can be circumvented in microdroplets. Phosphorylation is an essential chemical reaction for life. This reaction generates fundamental cell components, including building blocks for RNA and DNA, phospholipids for cell walls, and adenosine triphosphate (ATP) for energy storage. However, phosphorylation reactions are thermodynamically unfavorable in solution. Consequently, a long-standing question in prebiotic chemistry is how abiotic phosphorylation occurs in biological compounds. We find that the phosphorylation of various sugars to form sugar-1-phosphates can proceed spontaneously in aqueous microdroplets containing a simple mixture of sugars and phosphoric acid. The yield for d-ribose-1-phosphate reached over 6% at room temperature, giving a ΔG value of −1.1 kcal/mol, much lower than the +5.4 kcal/mol for the reaction in bulk solution. The temperature dependence of the product yield for the phosphorylation in microdroplets revealed a negative enthalpy change (ΔH = −0.9 kcal/mol) and a negligible change of entropy (ΔS = 0.0007 kcal/mol·K). Thus, the spontaneous phosphorylation reaction in microdroplets occurred by overcoming the entropic hurdle of the reaction encountered in bulk solution. Moreover, uridine, a pyrimidine ribonucleoside, is generated in aqueous microdroplets containing d-ribose, phosphoric acid, and uracil, which suggests the possibility that microdroplets could serve as a prebiotic synthetic pathway for ribonucleosides.
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10
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Canales M, Guàrdia E. A comparative molecular dynamics study of sulfuric and methanesulfonic acids. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.10.097] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Fábián B, Idrissi A, Marekha B, Jedlovszky P. Local lateral environment of the molecules at the surface of DMSO-water mixtures. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:404002. [PMID: 27506283 DOI: 10.1088/0953-8984/28/40/404002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Molecular dynamics simulations of the liquid-vapour interface of dimethyl sulphoxide (DMSO)-water mixtures of 11 different compositions, including two neat systems are performed on the canonical (N, V, T) ensemble at 298 K. The molecules constituting the surface layer of these systems are selected by means of the identification of the truly interfacial molecules (ITIM) method, and their local lateral environment at the liquid surface is investigated by performing Voronoi analysis. The obtained results reveal that both molecules prefer to be in a mixed local environment, consisting of both kinds of molecules, at the liquid surface, and this preference is even stronger here than in the bulk liquid phase. Neat-like patches, in which a molecule is surrounded by like neighbours, are not found. However, vacancies that are surrounded solely by water molecules are observed at the liquid surface. Our results show that strongly hydrogen bonded DMSO·H2O complexes, known to exist in the bulk phase of these mixtures, are absent from the liquid surface.
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Affiliation(s)
- Balázs Fábián
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellért tér 4, H-1111 Budapest, Hungary. Institut UTINAM (CNRS UMR 6213), Université Bourgogne Franche-Comté, 16 route de Gray, F-25030 Besançon, France
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12
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Nastasa V, Pascu A, Boni M, Smarandache A, Staicu A, Pascu M. Insights into the photophysics of zinc phthalocyanine and photogenerated singlet oxygen in DMSO-water mixture. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.04.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Structure and dynamics of solvated hydrogenoxalate and oxalate anions: a theoretical study. J Mol Model 2016; 22:210. [DOI: 10.1007/s00894-016-3075-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 07/27/2016] [Indexed: 11/26/2022]
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14
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Enami S, Sakamoto Y, Hara K, Osada K, Hoffmann MR, Colussi AJ. "Sizing" Heterogeneous Chemistry in the Conversion of Gaseous Dimethyl Sulfide to Atmospheric Particles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:1834-1843. [PMID: 26761399 DOI: 10.1021/acs.est.5b05337] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The oxidation of biogenic dimethyl sulfide (DMS) emissions is a global source of cloud condensation nuclei. The amounts of the nucleating H2SO4(g) species produced in such process, however, remain uncertain. Hydrophobic DMS is mostly oxidized in the gas phase into H2SO4(g) + DMSO(g) (dimethyl sulfoxide), whereas water-soluble DMSO is oxidized into H2SO4(g) in the gas phase and into SO4(2-) + MeSO3(-) (methanesulfonate) on water surfaces. R = MeSO3(-)/(non-sea-salt SO4(2-)) ratios would therefore gauge both the strength of DMS sources and the extent of DMSO heterogeneous oxidation if Rhet = MeSO3(-)/SO4(2-) for DMSO(aq) + ·OH(g) were known. Here, we report that Rhet = 2.7, a value obtained from online electrospray mass spectra of DMSO(aq) + ·OH(g) reaction products that quantifies the MeSO3(-) produced in DMSO heterogeneous oxidation on aqueous aerosols for the first time. On this basis, the inverse R dependence on particle radius in size-segregated aerosol collected over Syowa station and Southern oceans is shown to be consistent with the competition between DMSO gas-phase oxidation and its mass accommodation followed by oxidation on aqueous droplets. Geographical R variations are thus associated with variable contributions of the heterogeneous pathway to DMSO atmospheric oxidation, which increase with the specific surface area of local aerosols.
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Affiliation(s)
- Shinichi Enami
- The Hakubi Center for Advanced Research, Kyoto University , Kyoto 606-8302, Japan
- Research Institute for Sustainable Humanosphere, Kyoto University , Uji 611-0011, Japan
- PRESTO, Japan Science and Technology Agency , Kawaguchi 332-0012, Japan
| | - Yosuke Sakamoto
- Faculty of Environmental Earth Science, Hokkaido University , Sapporo 060-0610, Japan
| | - Keiichiro Hara
- Department of Earth Science System, Fukuoka University , Fukuoka 814-0180, Japan
| | - Kazuo Osada
- Graduate School of Environmental Studies, Nagoya University , Nagoya 464-8601, Japan
| | - Michael R Hoffmann
- Linde Center for Global Environmental Science, California Institute of Technology , California 91125, United States
| | - Agustín J Colussi
- Linde Center for Global Environmental Science, California Institute of Technology , California 91125, United States
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Henriques AC, De Marco P. Methanesulfonate (MSA) Catabolic Genes from Marine and Estuarine Bacteria. PLoS One 2015; 10:e0125735. [PMID: 25978049 PMCID: PMC4433239 DOI: 10.1371/journal.pone.0125735] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 03/26/2015] [Indexed: 11/19/2022] Open
Abstract
Quantitatively, methanesulfonate (MSA) is a very relevant compound in the global biogeochemical sulfur cycle. Its utilization by bacteria as a source of carbon and energy has been described and a specific enzyme, methanesulfonate monooxygenase (MSAMO), has been found to perform the first catabolic step of its oxidation. Other proteins seemingly involved in the import of MSA into bacterial cells have been reported. In this study, we obtained novel sequences of genes msmA and msmE from marine, estuary and soil MSA-degraders (encoding the large subunit of the MSAMO enzyme and the periplasmic component of the import system, respectively). We also obtained whole-genome sequences of two novel marine Filomicrobium strains, Y and W, and annotated two full msm operons in these genomes. Furthermore, msmA and msmE sequences were amplified from North Atlantic seawater and analyzed. Good conservation of the MsmA deduced protein sequence was observed in both cultured strains and metagenomic clones. A long spacer sequence in the Rieske-type [2Fe-2S] cluster-binding motif within MsmA was found to be conserved in all instances, supporting the hypothesis that this feature is specific to the large (α) subunit of the MSAMO enzyme. The msmE gene was more difficult to amplify, from both cultivated isolates and marine metagenomic DNA. However, 3 novel msmE sequences were obtained from isolated strains and one directly from seawater. With both genes, our results combined with previous metagenomic analyses seem to imply that moderate to high-GC strains are somehow favored during enrichment and isolation of MSA-utilizing bacteria, while the majority of msm genes obtained by cultivation-independent methods have low levels of GC%, which is a clear example of the misrepresentation of natural populations that culturing, more often than not, entails. Nevertheless, the data obtained in this work show that MSA-degrading bacteria are abundant in surface seawater, which suggests ecological relevance for this metabolic group of bacteria.
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Affiliation(s)
- Ana C. Henriques
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, CESPU, Rua Central de Gandra 1317, 4585–116 Paredes, Portugal
| | - Paolo De Marco
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, CESPU, Rua Central de Gandra 1317, 4585–116 Paredes, Portugal
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16
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Wang HF, Velarde L, Gan W, Fu L. Quantitative Sum-Frequency Generation Vibrational Spectroscopy of Molecular Surfaces and Interfaces: Lineshape, Polarization, and Orientation. Annu Rev Phys Chem 2015; 66:189-216. [DOI: 10.1146/annurev-physchem-040214-121322] [Citation(s) in RCA: 156] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hong-Fei Wang
- William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352;
| | - Luis Velarde
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260
| | - Wei Gan
- Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China
| | - Li Fu
- William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352;
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18
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Johnson CM, Baldelli S. Vibrational Sum Frequency Spectroscopy Studies of the Influence of Solutes and Phospholipids at Vapor/Water Interfaces Relevant to Biological and Environmental Systems. Chem Rev 2014; 114:8416-46. [DOI: 10.1021/cr4004902] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- C. Magnus Johnson
- Division of Surface and Corrosion
Science, Royal Institute of Technology (KTH), Drottning Kristinas Väg 51, SE-100 44 Stockholm, Sweden
| | - Steven Baldelli
- Department
of Chemistry, University of Houston, Texas 77204-5003, United States
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19
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Canales M, Alemán C. Molecular Dynamics Simulation Study of Methanesulfonic Acid. J Phys Chem B 2014; 118:3423-30. [DOI: 10.1021/jp500817s] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manel Canales
- Departament
de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Campus
Nord-Edifici B4-B5, Jordi Girona 1-3, Barcelona E-08034, Spain
| | - Carlos Alemán
- Departament
d’Enginyeria Química, Universitat Politècnica de Catalunya, Diagonal
647, Barcelona E-08028, Spain
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20
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Velarde L, Lu Z, Wang H. Coherent Vibrational Dynamics and High‐resolution Nonlinear Spectroscopy: A Comparison with the Air/DMSO Liquid Interface. CHINESE J CHEM PHYS 2013. [DOI: 10.1063/1674-0068/26/06/710-720] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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21
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Verreault D, Hua W, Allen HC. From Conventional to Phase-Sensitive Vibrational Sum Frequency Generation Spectroscopy: Probing Water Organization at Aqueous Interfaces. J Phys Chem Lett 2012; 3:3012-3028. [PMID: 26292243 DOI: 10.1021/jz301179g] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Elucidation of water organization at aqueous interfaces has remained a challenging problem. Conventional vibrational sum frequency generation (VSFG) spectroscopy and its most recent extension, phase-sensitive VSFG (PS-VSFG), have emerged as powerful experimental methods for unraveling structural information at various aqueous interfaces. In this Perspective, we briefly describe the two possible VSFG detection modes, and we point out features that make these methods highly suited to address questions about water organization at air/aqueous interfaces. Several important aqueous interfacial systems are discussed to illustrate the versatility of these methods. Remaining challenges and exciting prospective directions are also presented.
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Affiliation(s)
- Dominique Verreault
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Wei Hua
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Heather C Allen
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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Jubb AM, Hua W, Allen HC. Environmental chemistry at vapor/water interfaces: insights from vibrational sum frequency generation spectroscopy. Annu Rev Phys Chem 2012; 63:107-30. [PMID: 22224702 DOI: 10.1146/annurev-physchem-032511-143811] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The chemistry that occurs at surfaces has been an intense area of study for many years owing to its complexity and importance in describing a wide range of physical phenomena. The vapor/water interface is particularly interesting from an environmental chemistry perspective as this surface plays host to a wide range of chemistries that influence atmospheric and geochemical interactions. The application of vibrational sum frequency generation (VSFG), an inherently surface-specific, even-order nonlinear optical spectroscopy, enables the direct interrogation of various vapor/aqueous interfaces to elucidate the behavior and reaction of chemical species within the surface regime. In this review we discuss the application of VSFG to the study of a variety of atmospherically important systems at the vapor/aqueous interface. Chemical systems presented include inorganic ionic solutions prevalent in aqueous marine aerosols, small molecular solutes, and long-chain fatty acids relevant to fat-coated aerosols. The ability of VSFG to probe both the organization and reactions that may occur for these systems is highlighted. A future perspective toward the application of VSFG to the study of environmental interfaces is also provided.
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Affiliation(s)
- Aaron M Jubb
- Department of Chemistry, The Ohio State University, Columbus, 43210, USA.
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Velarde L, Zhang XY, Lu Z, Joly AG, Wang Z, Wang HF. Communication: Spectroscopic phase and lineshapes in high-resolution broadband sum frequency vibrational spectroscopy: Resolving interfacial inhomogeneities of “identical” molecular groups. J Chem Phys 2011; 135:241102. [DOI: 10.1063/1.3675629] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Affiliation(s)
- Veronica Vaida
- Department of Chemistry and Biochemistry, CIRES, University of Colorado, Boulder, Colorado 80309-0215, USA
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Liu Y, Minofar B, Desyaterik Y, Dames E, Zhu Z, Cain JP, Hopkins RJ, Gilles MK, Wang H, Jungwirth P, Laskin A. Internal structure, hygroscopic and reactive properties of mixed sodium methanesulfonate-sodium chloride particles. Phys Chem Chem Phys 2011; 13:11846-57. [DOI: 10.1039/c1cp20444k] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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