1
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Liu X, Wu Z, Cavalli R, Manzoli M, Cravotto G. Ultrasonic Preparation of Nano-CaCO 3 Templates and Hollow Mesoporous SiO 2 Nanoparticles for Voriconazole Loading. AAPS PharmSciTech 2024; 25:165. [PMID: 39009915 DOI: 10.1208/s12249-024-02872-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 06/18/2024] [Indexed: 07/17/2024] Open
Abstract
CaCO3 nanoparticles (nano-CaCO3) as nano-templates were prepared using CaCl2 and Na2CO3 solutions under controlled sonication (19.5 kHz). Using the same ultrasonic device, subsequently, hollow mesoporous silica nanoparticles (HMSNs) were obtained by the hard template of nano-CaCO3. HMSNs were selected as carriers for the antifungal drug voriconazole (VOR) loading to overcome poor water solubility. Three-dimensional CaCO3 nanosheets HMSNs were obtained under gentle sonication. Three-dimensional CaCO3 nanosheets of 24.5 nm (hydrodynamic diameter) were obtained under 17.6 W for 3 min. HMSNs were synthesized by double-template method with nano-CaCO3 as the hard template. Transmission electron microscopy measurements showed that the prepared HMSNs possess hollow structures with particle size between 110 and 120 nm. Nitrogen physisorption at -196 °C revealed that the HMSNs had high surface area (401.57 m2/g), high pore volume (0.11 cm3/g), and uniform pore size (2.22 nm) that facilitated the effective encapsulation of VOR in the HMSNs. The loading capacity of VOR (wt%) on the HMSNs was 7.96%, and the total VOR release amount of VOR-HMSNs material was 71.40% at 480 min. The kinetic model confirmed that the release mechanism of HMSNs nanoparticles followed Fickian diffusion at pH = 7.4 and 37 °C. Moreover, the cumulative VOR release at 42 °C (86.05%) was higher than that at 37 °C (71.40%). The cumulative release amount of VOR from the VOR-HMSNs material was 92.37% at pH = 5.8 at the same temperature. Both nano-CaCO3 templates and HMSNs were prepared by sonication at 19.5 kHz. The as-prepared HMSNs can effectively encapsulate VOR and released drug by Fickian diffusion.
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Affiliation(s)
- Xiaolin Liu
- Department of Drug Science and Technology and NIS - Centre, University of Turin, Via Pietro Giuria 9, Turin, 10125, Italy
| | - Zhilin Wu
- Country College of Chemistry and Chemical Engineering, Chemistry and Chemical Engineering Guangdong Province Laboratory, Shantou University, Daxue Road 243, Shantou, 515063, China.
| | - Roberta Cavalli
- Department of Drug Science and Technology and NIS - Centre, University of Turin, Via Pietro Giuria 9, Turin, 10125, Italy
| | - Maela Manzoli
- Department of Drug Science and Technology and NIS - Centre, University of Turin, Via Pietro Giuria 9, Turin, 10125, Italy
| | - Giancarlo Cravotto
- Department of Drug Science and Technology and NIS - Centre, University of Turin, Via Pietro Giuria 9, Turin, 10125, Italy.
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2
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Claesson PM, Wojas NA, Corkery R, Dedinaite A, Schoelkopf J, Tyrode E. The dynamic nature of natural and fatty acid modified calcite surfaces. Phys Chem Chem Phys 2024; 26:2780-2805. [PMID: 38193529 DOI: 10.1039/d3cp04432g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Calcium carbonate, particularly in the form of calcite, is an abundant mineral widely used in both human-made products and biological systems. The calcite surface possesses a high surface energy, making it susceptible to the adsorption of organic contaminants. Moreover, the surface is also reactive towards a range of chemicals, including water. Consequently, studying and maintaining a clean and stable calcite surface is only possible under ultrahigh vacuum conditions and for limited amounts of time. When exposed to air or solution, the calcite surface undergoes rapid transformations, demanding a comprehensive understanding of the properties of calcite surfaces in different environments. Similarly, attention must also be directed towards the kinetics of changes, whether induced by fluctuating environments or at constant condition. All these aspects are encompassed in the expression "dynamic nature", and are of crucial importance in the context of the diverse applications of calcite. In many instances, the calcite surface is modified by adsorption of fatty acids to impart a desired nonpolar character. Although the binding between carboxylic acid groups and calcite surfaces is strong, the fatty acid layer used for surface modification undergoes significant alterations when exposed to water vapour and liquid water droplets. Therefore, it is also crucial to understand the dynamic nature of the adsorbed layer. This review article provides a comprehensive overview of the current understanding of both the dynamics of the calcite surface as well as when modified by fatty acid surface treatments.
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Affiliation(s)
- Per M Claesson
- KTH Royal Institute of Technology, Department of Chemistry, Division of Surface and Corrosion Science, Teknikringen 29, SE-100 44 Stockholm, Sweden.
| | - Natalia A Wojas
- RISE Research Institutes of Sweden, Division of Bioeconomy and Health - Material and Surface Design, Drottning Kristinas väg 61B, SE-114 28 Stockholm, Sweden
| | - Robert Corkery
- KTH Royal Institute of Technology, Department of Chemistry, Division of Surface and Corrosion Science, Teknikringen 29, SE-100 44 Stockholm, Sweden.
| | - Andra Dedinaite
- KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Engineering Pedagogics, SE-100 44 Stockholm, Sweden
- RISE Research Institutes of Sweden, Division Bioeconomy and Health, Department Chemical Process and Pharmaceutical Development, Box 5604, SE-114 86 Stockholm, Sweden
| | | | - Eric Tyrode
- KTH Royal Institute of Technology, Department of Chemistry, Division of Surface and Corrosion Science, Teknikringen 29, SE-100 44 Stockholm, Sweden.
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3
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Hue KY, Lew JH, Myo Thant MM, Matar OK, Luckham PF, Müller EA. Molecular Dynamics Simulation of Polyacrylamide Adsorption on Calcite. Molecules 2023; 28:6367. [PMID: 37687196 PMCID: PMC10563068 DOI: 10.3390/molecules28176367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/21/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
In poorly consolidated carbonate rock reservoirs, solids production risk, which can lead to increased environmental waste, can be mitigated by injecting formation-strengthening chemicals. Classical atomistic molecular dynamics (MD) simulation is employed to model the interaction of polyacrylamide-based polymer additives with a calcite structure, which is the main component of carbonate formations. Amongst the possible calcite crystal planes employed as surrogates of reservoir rocks, the (1 0 4) plane is shown to be the most suitable surrogate for assessing the interactions with chemicals due to its stability and more realistic representation of carbonate structure. The molecular conformation and binding energies of pure polyacrylamide (PAM), hydrolysed polyacrylamide in neutral form (HPAM), hydrolysed polyacrylamide with 33% charge density (HPAM 33%) and sulfonated polyacrylamide with 33% charge density (SPAM 33%) are assessed to determine the adsorption characteristics onto calcite surfaces. An adsorption-free energy analysis, using an enhanced umbrella sampling method, is applied to evaluate the chemical adsorption performance. The interaction energy analysis shows that the polyacrylamide-based polymers display favourable interactions with the calcite structure. This is attributed to the electrostatic attraction between the amide and carboxyl functional groups with the calcite. Simulations confirm that HPAM33% has a lower free energy than other polymers, presumably due to the presence of the acrylate monomer in ionised form. The superior chemical adsorption performance of HPAM33% agrees with Atomic Force Microscopy experiments reported herein.
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Affiliation(s)
- Keat Yung Hue
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK; (K.Y.H.); (J.H.L.); (O.K.M.); (P.F.L.)
| | - Jin Hau Lew
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK; (K.Y.H.); (J.H.L.); (O.K.M.); (P.F.L.)
| | - Maung Maung Myo Thant
- PETRONAS Research Sdn. Bhd., Lot 3288 & 3289, Off Jalan Ayer Itam, Kawasan Institusi Bangi, Kajang 43000, Selangor, Malaysia;
| | - Omar K. Matar
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK; (K.Y.H.); (J.H.L.); (O.K.M.); (P.F.L.)
| | - Paul F. Luckham
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK; (K.Y.H.); (J.H.L.); (O.K.M.); (P.F.L.)
| | - Erich A. Müller
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK; (K.Y.H.); (J.H.L.); (O.K.M.); (P.F.L.)
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4
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Fang Y, Lee S, Xu H, Farfan GA. Organic Controls over Biomineral Ca-Mg Carbonate Compositions and Morphologies. CRYSTAL GROWTH & DESIGN 2023; 23:4872-4882. [PMID: 37426546 PMCID: PMC10326858 DOI: 10.1021/acs.cgd.3c00102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/27/2023] [Indexed: 07/11/2023]
Abstract
Calcium carbonate minerals, such as aragonite and calcite, are widespread in biomineral skeletons, shells, exoskeletons, and more. With rapidly increasing pCO2 levels linked to anthropogenic climate change, carbonate minerals face the threat of dissolution, especially in an acidifying ocean. Given the right conditions, Ca-Mg carbonates (especially disordered dolomite and dolomite) are alternative minerals for organisms to utilize, with the added benefit of being harder and more resistant to dissolution. Ca-Mg carbonate also holds greater potential for carbon sequestration due to both Ca and Mg cations being available to bond with the carbonate group (CO32-). However, Mg-bearing carbonates are relatively rare biominerals because the high kinetic energy barrier for the dehydration of the Mg2+-water complex severely restricts Mg incorporation in carbonates at Earth surface conditions. This work presents the first overview of the effects of the physiochemical properties of amino acids and chitins on the mineralogy, composition, and morphology of Ca-Mg carbonates in solutions and on solid surfaces. We discovered that acidic, negatively charged, hydrophilic amino acids (aspartic and glutamic) and chitins could induce the precipitation of high-magnesium calcite (HMC) and disordered dolomite in solution and on solid surfaces with these adsorbed biosubstrates via in vitro experiments. Thus, we expect that acidic amino acids and chitins are among the controlling factors in biomineralization used in different combinations to control the mineral phases, compositions, and morphologies of Ca-Mg carbonate biomineral crystals.
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Affiliation(s)
- Yihang Fang
- Department
of Geoscience, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
- Department
of Mineral Sciences, National Museum of
Natural History, Smithsonian Institution, Washington, District of Columbia 20560, United States
- Department
of Earth and Planetary Sciences, Washington
University in St. Louis, St. Louis, Missouri 63130, United States
| | - Seungyeol Lee
- USRA
Lunar and Planetary Institute, Houston, Texas 77058, United States
- ARES,
NASA Johnson Space Center, Houston, Texas 77058, United States
- Department
of Earth and Environmental Sciences, Chungbuk
National University, Cheongju 28644, Republic
of Korea
| | - Huifang Xu
- Department
of Geoscience, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Gabriela A. Farfan
- Department
of Mineral Sciences, National Museum of
Natural History, Smithsonian Institution, Washington, District of Columbia 20560, United States
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5
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Olsen R, Kvamme B. Impact of ethylene glycol on ions influencing corrosion in pores between iron oxide and calcium carbonate. MOLECULAR SIMULATION 2023. [DOI: 10.1080/08927022.2023.2184298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Affiliation(s)
- Richard Olsen
- Department of Physics and Technology, University of Bergen, Bergen, Norway
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6
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Dickbreder T, Lautner D, Köhler A, Klausfering L, Bechstein R, Kühnle A. How water desorbs from calcite. Phys Chem Chem Phys 2023; 25:12694-12701. [PMID: 36987935 DOI: 10.1039/d3cp01159c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
The desorption of water from calcite (10.4) reveals that the (2 × 1) surface reconstruction not only persist at room temperature but crucially influences the surface properties.
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Affiliation(s)
- Tobias Dickbreder
- Faculty of Chemistry, Physical Chemistry I, Bielefeld University, 33615 Bielefeld, Germany.
| | - Dirk Lautner
- Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55099 Mainz, Germany
| | - Antonia Köhler
- Faculty of Chemistry, Physical Chemistry I, Bielefeld University, 33615 Bielefeld, Germany.
| | - Lea Klausfering
- Faculty of Chemistry, Physical Chemistry I, Bielefeld University, 33615 Bielefeld, Germany.
| | - Ralf Bechstein
- Faculty of Chemistry, Physical Chemistry I, Bielefeld University, 33615 Bielefeld, Germany.
| | - Angelika Kühnle
- Faculty of Chemistry, Physical Chemistry I, Bielefeld University, 33615 Bielefeld, Germany.
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7
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Nada H. Stable Binding Conformations of Polymaleic and Polyacrylic Acids at a Calcite Surface in the Presence of Countercations: A Metadynamics Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:7046-7057. [PMID: 35604639 DOI: 10.1021/acs.langmuir.2c00750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Elucidating the stable binding conformations of additives at the surface of CaCO3 crystals is essential to biomineralization, scale inhibition, and materials technology. However, accomplishing this by experimental means is rather difficult. In this study, molecular dynamics simulations based on a metadynamics approach were conducted to elucidate the stable binding conformations of a deprotonated polymaleic acid (PMA) additive and two deprotonated poly(acrylic acid) (PAA) additives with different polymerization degrees in the presence of various countercations at a hydrated calcite (104) surface. The simulated free-energy surfaces suggested the existence of several slightly different stable binding conformations for each additive. The appearance of these distinct binding conformations is speculated to originate from different balances of interactions between the additive, the calcite surface, and the countercations. The binding conformations and binding stabilities at the calcite surface were affected by the countercations, with Ca2+ ions producing a more pronounced effect than Na+ ions. Furthermore, the simulation results suggested that the binding stability at the calcite surface was higher for the PMA additive than for the PAA additives, and the PAA additive with a polymerization degree of 10 displayed a binding stability that was similar to or lower than that of the PAA additive with a polymerization degree of 5. The present simulation method provides a new strategy for analyzing the binding conformations of complex additives at material surfaces, developing additives that stably bind to these surfaces, and designing additives to control crystal growth.
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Affiliation(s)
- Hiroki Nada
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8569, Japan
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8
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Mokkath JH. Impact of Adsorption of Straight Chain Alcohol Molecules on the Optical Properties of Calcite (10.4) Surface. NANOMATERIALS 2022; 12:nano12091460. [PMID: 35564169 PMCID: PMC9099925 DOI: 10.3390/nano12091460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/09/2022] [Accepted: 04/15/2022] [Indexed: 01/27/2023]
Abstract
Calcium carbonate plays a central role in controlling the chemistry of the oceans, biomineralization and oil production, to name a few. In this work, using density functional theory with semiempirical dispersion corrections and simplified TD-DFT using Tamm-Dancoff approximation, we investigated the impact of the adsorption of straight chain alcohol (ethanol and pentanol) molecules on the optical properties of a calcite (10.4) surface. Our results show that ethanol and/or pentanol molecules form a well-ordered monolayer (through their hydroxyl group with carbon chains sticking away in a standing-up position) on the calcite (10.4) surface. Additionally, we found intriguing modulations in the photoabsorption spectra and circular dichroism spectra. In particular, the latter was a unique optical fingerprint for a molecule-adsorbed calcite (10.4) surface. Our findings provide useful insights into the structural and optical features of calcite-based systems at the atomic level.
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Affiliation(s)
- Junais Habeeb Mokkath
- Quantum Nanophotonics Simulations Lab, Department of Physics, Kuwait College of Science and Technology, Doha Area, 7th Ring Road, Kuwait City P.O. Box 27235, Kuwait
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9
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Fang Y, Zhang F, Farfan GA, Xu H. Low-Temperature Synthesis of Disordered Dolomite and High-Magnesium Calcite in Ethanol-Water Solutions: The Solvation Effect and Implications. ACS OMEGA 2022; 7:281-292. [PMID: 35036699 PMCID: PMC8757334 DOI: 10.1021/acsomega.1c04624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
How dolomite [CaMg(CO3)2] forms is still underdetermined, despite over a century of efforts. Challenges to synthesizing dolomite at low temperatures have hindered our understanding of sedimentary dolomite formation. Unlike calcium, magnesium's high affinity toward water results in kinetic barriers from hydration shells that prevent anhydrous Ca-Mg carbonate growth. Previous synthesis studies show that adding low-dielectric-constant materials, such as dioxane, dissolved sulfide, and dissolved silica, can catalyze the formation of disordered dolomite. Also, polar hydrophilic amino acids and polysaccharides, which are very common in biomineralizing organisms, could have a positive role in stimulating Mg-rich carbonate precipitation. Here, we show that disordered dolomite and high-magnesium calcite can be precipitated at room temperature by partially replacing water with ethanol (which has a lower dielectric constant) and bypassing the hydration barrier. Increasing the ethanol volume percentage of ethanol results in higher Mg incorporation into the calcite structure. When the ethanol volume percentage increases to 75 vol %, disordered dolomite (>60 mol % MgCO3) can rapidly precipitate from a solution with [Mg2+] and [Ca2+] mimicking seawater. Thus, our results suggest that the hydration barrier is the critical kinetic inhibitor to primary dolomite precipitation. Ethanol synthesis experiments may provide insights into other materials that share similar properties to promote high-Mg calcite precipitation in sedimentary and biomineral environments.
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Affiliation(s)
- Yihang Fang
- NASA
Astrobiology Institute, Department of Geoscience, University of Wisconsin−Madison, 1215 W Dayton Street, Madison, Wisconsin 53706, United States
- Department
of Mineral Sciences, National Museum of Natural History, Smithsonian Institution, 10th St. & Constitution Ave. NW, Washington, District of Columbia 20560, United States
| | - Fangfu Zhang
- NASA
Astrobiology Institute, Department of Geoscience, University of Wisconsin−Madison, 1215 W Dayton Street, Madison, Wisconsin 53706, United States
| | - Gabriela A. Farfan
- Department
of Mineral Sciences, National Museum of Natural History, Smithsonian Institution, 10th St. & Constitution Ave. NW, Washington, District of Columbia 20560, United States
| | - Huifang Xu
- NASA
Astrobiology Institute, Department of Geoscience, University of Wisconsin−Madison, 1215 W Dayton Street, Madison, Wisconsin 53706, United States
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10
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Tetteh J, Bai S, Kubelka J, Piri M. Surfactant-induced wettability reversal on oil-wet calcite surfaces: Experimentation and molecular dynamics simulations with scaled-charges. J Colloid Interface Sci 2021; 609:890-900. [PMID: 34848057 DOI: 10.1016/j.jcis.2021.11.080] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/03/2021] [Accepted: 11/15/2021] [Indexed: 01/29/2023]
Abstract
HYPOTHESIS Surfactant flooding is the leading approach for reversing the wettability of oil-wet carbonate reservoirs, which is critical for the recovery of the remaining oil. Combination of molecular dynamics (MD) simulations with experiments on simplified model systems can uncover the molecular mechanisms of wettability reversal and identify key molecular properties for systematic design of new, effective chemical formulations for the enhanced oil recovery. EXPERIMENTS/SIMULATIONS Wettability reversal by a series of surfactant solutions was studied experimentally using contact angle measurements on aged calcite chips, and a novel MD simulation methodology with scaled-charges that provides superior description of the ionic interactions in aqueous solutions. FINDINGS The MD simulation results were in excellent agreement with the experiments. Cationic surfactants were the most effective in reversing the calcite wettability, resulting in complete detachment of the oil from the surface. Some nonionic surfactants also altered the wettability, but to a lesser degree, while the amphoteric and anionic surfactants had no effect. From the tested cationic surfactants, the double-tailed one was the least effective, but the experiments were inconclusive due to its poor solubility. Contributions of specific interactions to the wettability reversal process and implications for the design and optimization of surfactants for the enhanced oil recovery are discussed.
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Affiliation(s)
- Julius Tetteh
- Center of Innovation for Flow Through Porous Media, Department of Petroleum Engineering, University of Wyoming, Laramie, WY 82071, United States
| | - Shixun Bai
- Center of Innovation for Flow Through Porous Media, Department of Petroleum Engineering, University of Wyoming, Laramie, WY 82071, United States
| | - Jan Kubelka
- Center of Innovation for Flow Through Porous Media, Department of Petroleum Engineering, University of Wyoming, Laramie, WY 82071, United States.
| | - Mohammad Piri
- Center of Innovation for Flow Through Porous Media, Department of Petroleum Engineering, University of Wyoming, Laramie, WY 82071, United States
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11
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Molecular dynamics modeling and simulation of silicon dioxide-low salinity water nanofluid for enhanced oil recovery. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Söngen H, Schlegel SJ, Morais Jaques Y, Tracey J, Hosseinpour S, Hwang D, Bechstein R, Bonn M, Foster AS, Kühnle A, Backus EH. Water Orientation at the Calcite-Water Interface. J Phys Chem Lett 2021; 12:7605-7611. [PMID: 34350760 PMCID: PMC8365774 DOI: 10.1021/acs.jpclett.1c01729] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
Mineral-water interfaces play an important role in many natural as well as technological fields. Fundamental properties of these interfaces are governed by the presence of the interfacial water and its specific structure at the surface. Calcite is particularly interesting as a dominant rock-forming mineral in the earth's crust. Here, we combine atomic force microscopy, sum-frequency generation spectroscopy, and molecular dynamics simulations to determine the position and orientation of the water molecules in the hydration layers of the calcite surface with high resolution. While atomic force microscopy provides detailed information about the position of the water molecules at the interface, sum-frequency generation spectroscopy can deduce the orientation of the water molecules. Comparison of the calcite-water interface to the interfaces of magnesite-water, magnesite-ethanol, and calcite-ethanol reveals a comprehensive picture with opposite water orientations in the first and second layer of the interface, which is corroborated by the molecular dynamics simulations.
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Affiliation(s)
- Hagen Söngen
- Physical
Chemistry I, Faculty of Chemistry, Bielefeld
University, Universitätsstrasse 25, 33615 Bielefeld, Germany
| | - Simon J. Schlegel
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Ygor Morais Jaques
- Department
of Applied Physics, Aalto University, Helsinki, FI-00076, Finland
| | - John Tracey
- Department
of Applied Physics, Aalto University, Helsinki, FI-00076, Finland
| | - Saman Hosseinpour
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Doyk Hwang
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Ralf Bechstein
- Physical
Chemistry I, Faculty of Chemistry, Bielefeld
University, Universitätsstrasse 25, 33615 Bielefeld, Germany
| | - Mischa Bonn
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Adam S. Foster
- Department
of Applied Physics, Aalto University, Helsinki, FI-00076, Finland
- Nano
Life Science Institute (WPI-NanoLSI), Kanazawa
University, Kanazawa 920-1192, Japan
| | - Angelika Kühnle
- Physical
Chemistry I, Faculty of Chemistry, Bielefeld
University, Universitätsstrasse 25, 33615 Bielefeld, Germany
| | - Ellen H.G. Backus
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Department
of Physical Chemistry, University of Vienna, Währinger Strasse 42, 1090 Vienna Austria
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13
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Li H, Vovusha H, Sharma S, Singh N, Schwingenschlögl U. Modeling of
n
‐Alkanes on Calcite/Dolomite by Molecular Dynamics Simulations and First‐Principles Calculations. ADVANCED THEORY AND SIMULATIONS 2021. [DOI: 10.1002/adts.202100226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Huifang Li
- Physical Sciences and Engineering Division (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955–6900 Saudi Arabia
| | - Hakkim Vovusha
- Physical Sciences and Engineering Division (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955–6900 Saudi Arabia
| | - Sitansh Sharma
- Physical Sciences and Engineering Division (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955–6900 Saudi Arabia
| | - Nirpendra Singh
- Physical Sciences and Engineering Division (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955–6900 Saudi Arabia
| | - Udo Schwingenschlögl
- Physical Sciences and Engineering Division (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955–6900 Saudi Arabia
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14
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Abstract
For the present work, calcite nanocrystals were grown by annealing precursors at 500 °C. These precursors were obtained by three different thermal schemes. Among these schemes, two involve heating at 100 °C for 16 h and 16 + 24 h, respectively. In the third scheme, heating was performed at 100 °C for 16 h, followed by annealing at 300 °C for 24 h. X-ray diffraction studies, followed by Fourier transform infrared and Raman spectroscopic studies, exhibited the formation of calcite phase of calcium carbonate. Transmission electron microscopy showed that particle sizes of synthesized calcite nanocrystals were in the range of 25–40 nm. Onsets of shape change were also observed with different thermal schemes, using these measurements. X-ray absorption spectroscopy envisaged that the coordination numbers of Ca-O and Ca-Ca shell were not influenced by the thermal schemes; however, bond lengths of these shells were modified. This study in the near edge region evidenced the manifestation of a local electronic structure of calcite when kept in an open environment, depending upon different thermal schemes.
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15
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Kubelka J, Bai S, Piri M. Effects of Surfactant Charge and Molecular Structure on Wettability Alteration of Calcite: Insights from Molecular Dynamics Simulations. J Phys Chem B 2021; 125:1293-1305. [PMID: 33475371 DOI: 10.1021/acs.jpcb.0c10361] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Wettability alteration of oil-wet calcite by surfactants was studied by means of molecular dynamics (MD) simulations. The simulations use the recently developed model for positively charged calcite surface, whose oil-wet state originates from binding of negatively charged carboxylate molecules contained in the oil, consistently with the bulk of the available experimental data. The ability to alter the surface wettability, which can be directly quantified by the release of the surface-bound carboxylates, is tested for nine different surfactants of all charge types-cationic, anionic, nonionic, and zwitterionic-and compared to that of brine. It was found that only the cationic surfactants are able to detach the organic carboxylates more efficiently than brine, while the neutral and anionic surfactants do not seem to have any measurable effect on the wettability. The outperformance of the cationic surfactants is generally consistent with the majority of previously published experimental observations. The data also point toward a consistently better performance of single-tailed cationic surfactants over the two-tailed structure. Molecular mechanism of the wettability alteration by different types of surfactants is discussed, along with the implications of the results for the design of new surfactant formulations for the enhanced oil recovery.
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Affiliation(s)
- Jan Kubelka
- Department of Chemical and Petroleum Engineering, University of Wyoming, 1000 East University Avenue, Laramie, Wyoming 82071, United States
| | - Shixun Bai
- Department of Chemical and Petroleum Engineering, University of Wyoming, 1000 East University Avenue, Laramie, Wyoming 82071, United States
| | - Mohammad Piri
- Department of Chemical and Petroleum Engineering, University of Wyoming, 1000 East University Avenue, Laramie, Wyoming 82071, United States
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16
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Cai B, Li Z, Chen CL. Programming Amphiphilic Peptoid Oligomers for Hierarchical Assembly and Inorganic Crystallization. Acc Chem Res 2021; 54:81-91. [PMID: 33136361 DOI: 10.1021/acs.accounts.0c00533] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Natural organisms make a wide variety of exquisitely complex, nano-, micro-, and macroscale structured materials in an energy-efficient and highly reproducible manner. During these processes, the information-carrying biomolecules (e.g., proteins, peptides, and carbohydrates) enable (1) hierarchical organization to assemble scaffold materials and execute high-level functions and (2) exquisite control over inorganic materials synthesis, generating biominerals whose properties are optimized for their functions. Inspired by nature, significant efforts have been devoted to developing functional materials that can rival those natural molecules by mimicking in vivo functions using engineered proteins, peptides, DNAs, sequence-defined synthetic molecules (e.g., peptoids), and other biomimetic polymers. Among them, peptoids, a new type of synthetic mimetics of peptides and proteins, have received particular attention because they combine the merits of both synthetic polymers (e.g., high chemical stability and efficient synthesis) and biomolecules (e.g., sequence programmability and biocompatibility). The lack of both chirality and hydrogen bonds in their backbone results in a highly designable peptoid-based system with reduced structural complexity and side chain-chemistry-dominated properties.In this Account, we present our recent efforts in this field by programming amphiphilic peptoid sequences for (1) the controlled self-assembly into different hierarchically structured nanomaterials with favorable properties and (2) manipulating inorganic (nano)crystal nucleation, growth, and assembly into superstructures. First, we designed a series of amphiphilic peptoids with controlled side chain chemistries that self-assembled into 1D highly stiff and dynamic nanotubes, 2D membrane-mimetic nanosheets, hexagonally patterned nanoribbons, and 3D nanoflowers. These crystalline nanostructures exhibited sequence-dependent properties and showed promise for different applications. The corresponding peptoid self-assembly pathways and mechanisms were also investigated by leveraging in situ atomic force microscopy studies and molecular dynamics simulations, which showed precise sequence dependency. Second, inspired by peptide- and protein-controlled formation of hierarchical inorganic nanostructures in nature, we developed peptoid-based biomimetic approaches for controlled synthesis of inorganic materials (e.g., noble metals and calcite), in which we took advantage of the substantial side chain chemistry of peptoids and investigated the relationship between the peptoid sequences and the morphology and growth kinetics of inorganic materials. For example, to overcome the challenges (e.g., complexity of protein- and peptide-folding, poor thermal and chemical stabilities) facing the area of protein- and peptide-controlled synthesis of inorganic materials, we recently reported the design of sequence-defined peptoids for controlled synthesis of highly branched plasmonic gold particles. Moreover, we developed a rule of thumb for designing peptoids that predictively enabled the morphological evolution from spherical to coral-shaped gold nanoparticles (NPs). With this Account, we hope to stimulate the research interest of chemists and materials scientists and promote the predictive synthesis of functional and robust materials through the design of sequence-defined synthetic molecules.
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Affiliation(s)
- Bin Cai
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Zhiliang Li
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Chun-Long Chen
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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17
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Guo H, Nazari N, Esmaeilzadeh S, Kovscek AR. A Critical Review of the Role of Thin Liquid Films for Modified Salinity Brine Recovery Processes. Curr Opin Colloid Interface Sci 2020. [DOI: 10.1016/j.cocis.2020.101393] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Gold nanoparticles onto cerium oxycarbonate as highly efficient catalyst for aerobic allyl alcohol oxidation. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.105989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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19
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Söngen H, Jaques YM, Spijker P, Marutschke C, Klassen S, Hermes I, Bechstein R, Zivanovic L, Tracey J, Foster AS, Kühnle A. Three-dimensional solvation structure of ethanol on carbonate minerals. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:891-898. [PMID: 32566439 PMCID: PMC7296196 DOI: 10.3762/bjnano.11.74] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 05/13/2020] [Indexed: 05/12/2023]
Abstract
Calcite and magnesite are important mineral constituents of the earth's crust. In aqueous environments, these carbonates typically expose their most stable cleavage plane, the (10.4) surface. It is known that these surfaces interact with a large variety of organic molecules, which can result in surface restructuring. This process is decisive for the formation of biominerals. With the development of 3D atomic force microscopy (AFM) it is now possible to image solid-liquid interfaces with unprecedented molecular resolution. However, the majority of 3D AFM studies have been focused on the arrangement of water at carbonate surfaces. Here, we present an analysis of the assembly of ethanol - an organic molecule with a single hydroxy group - at the calcite and magnesite (10.4) surfaces by using high-resolution 3D AFM and molecular dynamics (MD) simulations. Within a single AFM data set we are able to resolve both the first laterally ordered solvation layer of ethanol on the calcite surface as well as the following solvation layers that show no lateral order. Our experimental results are in excellent agreement with MD simulations. The qualitative difference in the lateral order can be understood by the differing chemical environment: While the first layer adopts specific binding positions on the ionic carbonate surface, the second layer resides on top of the organic ethyl layer. A comparison of calcite and magnesite reveals a qualitatively similar ethanol arrangement on both carbonates, indicating the general nature of this finding.
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Affiliation(s)
- Hagen Söngen
- Physical Chemistry I, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
- Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10 - 14, 55099 Mainz, Germany
- Graduate School Materials Science in Mainz, Staudingerweg 9, 55128 Mainz, Germany
| | - Ygor Morais Jaques
- Department of Applied Physics, Aalto University, Helsinki FI-00076, Finland
| | - Peter Spijker
- Department of Applied Physics, Aalto University, Helsinki FI-00076, Finland
| | - Christoph Marutschke
- Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10 - 14, 55099 Mainz, Germany
| | - Stefanie Klassen
- Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10 - 14, 55099 Mainz, Germany
| | - Ilka Hermes
- Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10 - 14, 55099 Mainz, Germany
| | - Ralf Bechstein
- Physical Chemistry I, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
- Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10 - 14, 55099 Mainz, Germany
| | - Lidija Zivanovic
- Department of Applied Physics, Aalto University, Helsinki FI-00076, Finland
| | - John Tracey
- Department of Applied Physics, Aalto University, Helsinki FI-00076, Finland
| | - Adam S Foster
- Graduate School Materials Science in Mainz, Staudingerweg 9, 55128 Mainz, Germany
- Department of Applied Physics, Aalto University, Helsinki FI-00076, Finland
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakumamachi, Kanazawa 920-1192, Japan
| | - Angelika Kühnle
- Physical Chemistry I, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
- Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10 - 14, 55099 Mainz, Germany
- Graduate School Materials Science in Mainz, Staudingerweg 9, 55128 Mainz, Germany
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20
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An atomistic insight into the implications of ion-tuned water injection in wetting preferences of carbonate reservoirs. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111530] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Kim S, Marcano MC, Becker U. Mechanistic Study of Wettability Changes on Calcite by Molecules Containing a Polar Hydroxyl Functional Group and Nonpolar Benzene Rings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:2527-2537. [PMID: 30681863 DOI: 10.1021/acs.langmuir.8b03666] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Oil extraction efficiency strongly depends on the wettability status (oil- vs water-wet) of reservoir rocks during oil recovery. Aromatic compounds with polar functional groups in crude oil have a significant influence on binding hydrophobic molecules to mineral surfaces. Most of these compounds are in the asphaltene fraction of crude oil. This study focuses on the hydroxyl functional group, an identified functional group in asphaltenes, to understand how the interactions between hydroxyl groups in asphaltenes and mineral surfaces begin. Phenol and 1-naphthol are used as asphaltene surrogates to model the simplest version of asphaltenes. Adsorption of oil molecules on the calcite {101̅4} surface is described using static quantum-mechanical density functional theory (DFT) calculations and classical molecular dynamics (MD) simulations. DFT calculations indicate that adsorption of phenol and 1-naphthol occurs preferentially between their hydroxyl group and calcite step edges. 1-Naphthol adsorbs more strongly than phenol, with different adsorption geometries due to the larger hydrophobic part of 1-naphthol. MD simulations show that phenol can behave as an agent to separate oil from the water phase and to bind the oil phase to the calcite surface in the water/oil mixture. In the presence of phenol, partial separation of water/oil with an incomplete lining of phenol at the water/oil boundary is observed after 0.2 ns. After 1 ns, perfect separation of water/oil with a complete lining of phenol at the water/oil boundary is observed, and the calcite surface becomes oil-wet. Phenol molecules enclose decane molecules at the water-decane boundary preventing water from repelling decane molecules from the calcite surface and facilitate further accumulation of hydrocarbons near the surface, rendering the surface oil-wet. This study indicates phenol and 1-naphthol to be good proxies for polar components in oil, and they can be used in designing further experiments to test pH, salinity, and temperature dependence to improve oil recovery.
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Affiliation(s)
- Sooyeon Kim
- Department of Earth and Environmental Sciences , University of Michigan , 3021 North University Building, 1100 North University Avenue , Ann Arbor , Michigan 48109-1005 , United States
| | - Maria C Marcano
- Department of Earth and Environmental Sciences , University of Michigan , 3021 North University Building, 1100 North University Avenue , Ann Arbor , Michigan 48109-1005 , United States
| | - Udo Becker
- Department of Earth and Environmental Sciences , University of Michigan , 3021 North University Building, 1100 North University Avenue , Ann Arbor , Michigan 48109-1005 , United States
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Wojas NA, Swerin A, Wallqvist V, Järn M, Schoelkopf J, Gane PAC, Claesson PM. Iceland spar calcite: Humidity and time effects on surface properties and their reversibility. J Colloid Interface Sci 2019; 541:42-55. [PMID: 30682592 DOI: 10.1016/j.jcis.2019.01.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/10/2019] [Accepted: 01/11/2019] [Indexed: 10/27/2022]
Abstract
Understanding the complex and dynamic nature of calcite surfaces under ambient conditions is important for optimizing industrial applications. It is essential to identify processes, their reversibility, and the relevant properties of CaCO3 solid-liquid and solid-gas interfaces under different environmental conditions, such as at increased relative humidity (RH). This work elucidates changes in surface properties on freshly cleaved calcite (topography, wettability and surface forces) as a function of time (≤28 h) at controlled humidity (≤3-95 %RH) and temperature (25.5 °C), evaluated with atomic force microscopy (AFM) and contact angle techniques. In the presence of humidity, the wettability decreased, liquid water capillary forces dominated over van der Waals forces, and surface domains, such as hillocks, height about 7.0 Å, and trenches, depth about -3.5 Å, appeared and grew primarily in lateral dimensions. Hillocks demonstrated lower adhesion and higher deformation in AFM experiments. We propose that the growing surface domains were formed by ion dissolution and diffusion followed by formation of hydrated salt of CaCO3. Upon drying, the height of the hillocks decreased by about 50% suggesting their alteration into dehydrated or less hydrated CaCO3. However, the process was not entirely reversible and crystallization of new domains continued at a reduced rate.
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Affiliation(s)
- Natalia A Wojas
- RISE Research Institutes of Sweden, Division of Bioscience and Materials - Surface, Process and Formulation, Box 5607, SE-114 86 Stockholm, Sweden; KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry, Division of Surface and Corrosion Science, Drottning Kristinas väg 51, SE-100 44 Stockholm, Sweden.
| | - Agne Swerin
- RISE Research Institutes of Sweden, Division of Bioscience and Materials - Surface, Process and Formulation, Box 5607, SE-114 86 Stockholm, Sweden; KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry, Division of Surface and Corrosion Science, Drottning Kristinas väg 51, SE-100 44 Stockholm, Sweden
| | - Viveca Wallqvist
- RISE Research Institutes of Sweden, Division of Bioscience and Materials - Surface, Process and Formulation, Box 5607, SE-114 86 Stockholm, Sweden
| | - Mikael Järn
- RISE Research Institutes of Sweden, Division of Bioscience and Materials - Surface, Process and Formulation, Box 5607, SE-114 86 Stockholm, Sweden
| | | | - Patrick A C Gane
- Omya International AG, Baslerstrasse 42, CH-4665 Oftringen, Switzerland; Aalto University, School of Chemical Engineering, Department of Bioproducts and Biosystems, P.O. Box 16300, FI-00076 Aalto, Finland
| | - Per M Claesson
- RISE Research Institutes of Sweden, Division of Bioscience and Materials - Surface, Process and Formulation, Box 5607, SE-114 86 Stockholm, Sweden; KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry, Division of Surface and Corrosion Science, Drottning Kristinas väg 51, SE-100 44 Stockholm, Sweden.
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Gao Y, Wang X, Yu W, Liu G, Dong X, Wang J. Construction of LiMn2O4 microcubes and spheres via the control of the (104) crystal planes of MnCO3 for high rate Li-ions batteries. RSC Adv 2019; 9:21009-21017. [PMID: 35515518 PMCID: PMC9065749 DOI: 10.1039/c9ra02952d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 06/19/2019] [Indexed: 11/21/2022] Open
Abstract
LiMn2O4 cathode materials with different morphologies were produced as a result of the addition of ethanol that interacts with the MnCO3 (104) crystal planes.
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Affiliation(s)
- Yanshen Gao
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Xinlu Wang
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Wensheng Yu
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Guixia Liu
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Xiangting Dong
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Jinxian Wang
- School of Chemistry and Environmental Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
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Effect of ethanol on the crystallization and phase transformation of MgCO3·3H2O in a MgCl2–CO2–NH3·H2O system. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.04.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Mineral Surface-Templated Self-Assembling Systems: Case Studies from Nanoscience and Surface Science towards Origins of Life Research. Life (Basel) 2018; 8:life8020010. [PMID: 29738443 PMCID: PMC6027067 DOI: 10.3390/life8020010] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 04/26/2018] [Accepted: 05/03/2018] [Indexed: 01/20/2023] Open
Abstract
An increasing body of evidence relates the wide range of benefits mineral surfaces offer for the development of early living systems, including adsorption of small molecules from the aqueous phase, formation of monomeric subunits and their subsequent polymerization, and supramolecular assembly of biopolymers and other biomolecules. Each of these processes was likely a necessary stage in the emergence of life on Earth. Here, we compile evidence that templating and enhancement of prebiotically-relevant self-assembling systems by mineral surfaces offers a route to increased structural, functional, and/or chemical complexity. This increase in complexity could have been achieved by early living systems before the advent of evolvable systems and would not have required the generally energetically unfavorable formation of covalent bonds such as phosphodiester or peptide bonds. In this review we will focus on various case studies of prebiotically-relevant mineral-templated self-assembling systems, including supramolecular assemblies of peptides and nucleic acids, from nanoscience and surface science. These fields contain valuable information that is not yet fully being utilized by the origins of life and astrobiology research communities. Some of the self-assemblies that we present can promote the formation of new mineral surfaces, similar to biomineralization, which can then catalyze more essential prebiotic reactions; this could have resulted in a symbiotic feedback loop by which geology and primitive pre-living systems were closely linked to one another even before life’s origin. We hope that the ideas presented herein will seed some interesting discussions and new collaborations between nanoscience/surface science researchers and origins of life/astrobiology researchers.
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26
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Budi A, Stipp SLS, Andersson MP. The effect of solvation and temperature on the adsorption of small organic molecules on calcite. Phys Chem Chem Phys 2018; 20:7140-7147. [DOI: 10.1039/c7cp06747j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of multicomponent mixture on small organic molecule adsorption on calcite at nonzero temperature was investigated.
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Affiliation(s)
- A. Budi
- Nano-Science Center
- Department of Chemistry
- University of Copenhagen
- Copenhagen
- Denmark
| | - S. L. S. Stipp
- Nano-Science Center
- Department of Chemistry
- University of Copenhagen
- Copenhagen
- Denmark
| | - M. P. Andersson
- Nano-Science Center
- Department of Chemistry
- University of Copenhagen
- Copenhagen
- Denmark
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27
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Xue Z, Shen Q, Liang L, Shen JW, Wang Q. Adsorption Behavior and Mechanism of SCA-1 on a Calcite Surface: A Molecular Dynamics Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:11321-11331. [PMID: 28666388 DOI: 10.1021/acs.langmuir.7b01217] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The crystallization mechanism for natural mineral, especially the role of biological molecules in biomineralization, is still under debate. Protein adsorption on material surfaces plays a key role in biomineralization. In this article, molecular dynamics (MD) simulations were performed to systematically investigate the adsorption behavior of struthio camelus eggshell protein struthiocalcin-1 (SCA-1) on the calcite (104) surface with several different starting orientations in an explicit water environment. For each binding configuration, detailed adsorption behaviors and a mechanism were presented with the analysis of interaction energy, binding residues, hydrogen bonding, and structures (such as DSSP, dipole moment, and the electrostatic potential calculation). The results indicate that the positively charged and polar residues are the dominant residues for protein adsorption on the calcite (104) surface, and the strong electrostatic interaction drives the binding of model protein to the surface. The hydrogen bond bridge was found to play an important role in surface interactions as well. These results also demonstrate that SCA-1 is relatively rigid in spite of strong adsorption with few structural changes in α-helix and β-sheet contents. The results of the orientation calculation suggest that the dipole moment of the protein tends to remain parallel to calcite in most stable cases, which was confirmed by electrostatic potential isosurfaces analysis.
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Affiliation(s)
- Zhengyang Xue
- Department of Chemistry, Zhejiang University , Hangzhou 310027, People's Republic of China
| | - Qiying Shen
- School of Medicine, Hangzhou Normal University , Hangzhou 310016, People's Republic of China
| | - Lijun Liang
- College of Life Information Science and Instrument Engineering, Hangzhou Dianzi University , Hangzhou, People's Republic of China
| | - Jia-Wei Shen
- School of Medicine, Hangzhou Normal University , Hangzhou 310016, People's Republic of China
| | - Qi Wang
- Department of Chemistry, Zhejiang University , Hangzhou 310027, People's Republic of China
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Interactions of the Calcite {10.4} Surface with Organic Compounds: Structure and Behaviour at Mineral - Organic Interfaces. Sci Rep 2017; 7:7592. [PMID: 28790315 PMCID: PMC5548931 DOI: 10.1038/s41598-017-06977-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 06/21/2017] [Indexed: 11/29/2022] Open
Abstract
The structure and the strength of organic compound adsorption on mineral surfaces are of interest for a number of industrial and environmental applications, oil recovery, CO2 storage and contamination remediation. Biomineralised calcite plays an essential role in the function of many organisms that control crystal growth with organic macromolecules. Carbonate rocks, composed almost exclusively of calcite, host drinking water aquifers and oil reservoirs. In this study, we examined the ordering behaviour of several organic compounds and the thickness of the adsorbed layers formed on calcite {10.4} surfaces. We used X-ray reflectivity (XRR) to study calcite {10.4} surfaces that were prepared in three alcohols: methanol, isopropanol and pentanol and one carboxylic acid: octanoic acid. All molecules adsorbed in self-assembled layers, where thickness depended on the density and the length of the molecule. For methanol and isopropanol, molecular dynamic simulations (MD) provided complementary information, which allowed us to develop a surface model. Branching in isopropanol induced slightly less ordering because of the additional degree of freedom. Pentanol and octanoic acid adsorbed as single monolayers. The results of this work indicate that adhered organic compounds from the surrounding environment can affect the surface behaviour, depending on properties of the organic compound.
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A molecular dynamics investigation into the adsorption behavior inside {001} kaolinite and {1014} calcite nano-scale channels: the case with confined hydrocarbon liquid, acid gases, and water. APPLIED NANOSCIENCE 2017. [DOI: 10.1007/s13204-017-0563-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Bampoulis P, Witteveen JP, Kooij ES, Lohse D, Poelsema B, Zandvliet HJW. Structure and Dynamics of Confined Alcohol-Water Mixtures. ACS NANO 2016; 10:6762-8. [PMID: 27337245 DOI: 10.1021/acsnano.6b02333] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The effect of confinement between mica and graphene on the structure and dynamics of alcohol-water mixtures has been studied in situ and in real time at the molecular level by atomic force microscopy (AFM) at room temperature. AFM images reveal that the adsorbed molecules are segregated into faceted alcohol-rich islands on top of an ice layer on mica, surrounded by a pre-existing multilayer water-rich film. These faceted islands are in direct contact with the graphene surface, revealing a preferred adsorption site. Moreover, alcohol adsorption at low relative humidity (RH) reveals a strong preference of the alcohol molecules for the ordered ice interface. The growth dynamics of the alcohol islands is governed by supersaturation, temperature, the free energy of attachment of molecules to the island edge and two-dimensional (2D) diffusion. The measured diffusion coefficients display a size dependence on the molecular size of the alcohols, and are about 6 orders of magnitude smaller than the bulk diffusion coefficients, demonstrating the effect of confinement on the behavior of the alcohols. These experimental results provide new insights into the behavior of multicomponent fluids in confined geometries, which is of paramount importance in nanofluidics and biology.
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Affiliation(s)
- Pantelis Bampoulis
- Physics of Interfaces and Nanomaterials, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500AE Enschede, The Netherlands
- Physics of Fluids and J.M. Burgers Centre for Fluid Mechanics, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500AE Enschede, The Netherlands
| | - Jorn P Witteveen
- Physics of Interfaces and Nanomaterials, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500AE Enschede, The Netherlands
| | - E Stefan Kooij
- Physics of Interfaces and Nanomaterials, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500AE Enschede, The Netherlands
| | - Detlef Lohse
- Physics of Fluids and J.M. Burgers Centre for Fluid Mechanics, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500AE Enschede, The Netherlands
- Max Planck Institute for Dynamics and Self-Organization , Am Fassberg, 37077 Göttingen, Germany
| | - Bene Poelsema
- Physics of Interfaces and Nanomaterials, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500AE Enschede, The Netherlands
| | - Harold J W Zandvliet
- Physics of Interfaces and Nanomaterials, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500AE Enschede, The Netherlands
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Rodriguez-Navarro C, Vettori I, Ruiz-Agudo E. Kinetics and Mechanism of Calcium Hydroxide Conversion into Calcium Alkoxides: Implications in Heritage Conservation Using Nanolimes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:5183-5194. [PMID: 27149182 DOI: 10.1021/acs.langmuir.6b01065] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Nanolimes are alcohol dispersions of Ca(OH)2 nanoparticles used in the conservation of cultural heritage. Although it was believed that Ca(OH)2 particles were inert when dispersed in short-chain alcohols, it has been recently shown that they can undergo transformation into calcium alkoxides. Little is known, however, about the mechanism and kinetics of such a phase transformation as well as its effect on the performance of nanolimes. Here we show that Ca(OH)2 particles formed after lime slaking react with ethanol and isopropanol and partially transform (fractional conversion, α up to 0.08) into calcium ethoxide and isopropoxide, respectively. The transformation shows Arrhenius behavior, with apparent activation energy Ea of 29 ± 4 and 37 ± 6 kJ mol(-1) for Ca-ethoxide and Ca-isopropoxide conversion, respectively. High resolution transmission electron microscopy analyses of reactant and product phases show that the alkoxides replace the crystalline structure of Ca(OH)2 along specific [hkl] directions, preserving the external hexagonal (platelike) morphology of the parent phase. Textural and kinetic results reveal that this pseudomorphic replacement involves a 3D diffusion-controlled deceleratory advancement of the reaction front. The results are consistent with an interface-coupled dissolution-precipitation replacement mechanism. Analysis of the carbonation of Ca(OH)2 particles with different degree of conversion into Ca-ethoxide (α up to 0.08) and Ca-isopropoxide (α up to 0.04) exposed to air (20 °C, 80% relative humidity) reveals that Ca-alkoxides significantly reduce the rate of transformation into cementing CaCO3 and induce the formation of metastable vaterite, as opposed to stable calcite which forms in untransformed Ca(OH)2 samples. Similar effects are obtained when a commercial nanolime partially transformed into Ca-ethoxide is subjected to carbonation. Such effects may hamper/delay the strengthening or consolidation effects of nanolimes, thus having important implications in the conservation of cultural heritage.
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Affiliation(s)
- Carlos Rodriguez-Navarro
- Department of Mineralogy and Petrology, University of Granada , Fuentenueva s/n, 18002 Granada, Spain
| | - Irene Vettori
- Department of Mineralogy and Petrology, University of Granada , Fuentenueva s/n, 18002 Granada, Spain
| | - Encarnacion Ruiz-Agudo
- Department of Mineralogy and Petrology, University of Granada , Fuentenueva s/n, 18002 Granada, Spain
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32
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Gehl A, Dietzsch M, Mondeshki M, Bach S, Häger T, Panthöfer M, Barton B, Kolb U, Tremel W. Anhydrous Amorphous Calcium Oxalate Nanoparticles from Ionic Liquids: Stable Crystallization Intermediates in the Formation of Whewellite. Chemistry 2015; 21:18192-201. [DOI: 10.1002/chem.201502229] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Indexed: 11/08/2022]
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33
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Shen Z, Szlufarska I, Brown PE, Xu H. Investigation of the Role of Polysaccharide in the Dolomite Growth at Low Temperature by Using Atomistic Simulations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:10435-10442. [PMID: 26334253 DOI: 10.1021/acs.langmuir.5b02025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Dehydration of water from surface Mg(2+) is most likely the rate-limiting step in the dolomite growth at low temperature. Here, we investigate the role of polysaccharide in this step using classical molecular dynamics (MD) calculations. Free energy (potential of mean force, PMF) calculations have been performed for water molecules leaving the first two hydration layers above the dolomite (104) surface under the following three conditions: without catalyst, with monosaccharide (mannose), and with oligosaccharide (three units of mannose). MD simulations reveal that there is no obvious effect of monosaccharide in lowering the dehydration barrier for surface Mg(2+). However, we found that there are metastable configurations of oligosaccharide, which can decrease the dehydration barrier of surface Mg(2+) by about 0.7-1.1 kcal/mol. In these configurations, the molecule lies relatively flat on the surface and forms a bridge shape. The hydrophobic space near the surface created by the nonpolar -CH groups of the oligosaccharide in the bridge conformation is the reason for the observed reduction of dehydration barrier.
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Affiliation(s)
- Zhizhang Shen
- NASA Astrobiology Institute, Department of Geoscience, ‡Department of Materials Science and Engineering, and §Materials Science Program, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Izabela Szlufarska
- NASA Astrobiology Institute, Department of Geoscience, ‡Department of Materials Science and Engineering, and §Materials Science Program, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Philip E Brown
- NASA Astrobiology Institute, Department of Geoscience, ‡Department of Materials Science and Engineering, and §Materials Science Program, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Huifang Xu
- NASA Astrobiology Institute, Department of Geoscience, ‡Department of Materials Science and Engineering, and §Materials Science Program, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
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Olsen R, Leirvik KN, Kvamme B, Kuznetsova T. Adsorption Properties of Triethylene Glycol on a Hydrated {101̅4} Calcite Surface and Its Effect on Adsorbed Water. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:8606-8617. [PMID: 26161580 DOI: 10.1021/acs.langmuir.5b02228] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Molecular dynamics (MD) and Born-Oppenheimer MD (BOMD) simulations were employed to investigate adsorption of aqueous triethylene glycol (TEG) on a hydrated {101̅4} calcite surface at 298 K. We analyzed the orientation of TEG adsorbed on calcite, as well as the impact of TEG on the water density and adsorption free energy. The adsorption energies of TEG, free energy profiles for TEG, details of hydrogen bonding between water and adsorbed TEG, and dihedral angle distribution of adsorbed TEG were estimated. We found that while the first layer of water was mostly unaffected by the presence of adsorbed TEG, the density of the second water layer was decreased by 71% at 75% surface coverage of TEG. TEG primarily attached to the calcite surface via two adjacent adsorption sites. Hydrogen bonds between water and adsorbed TEG in the second layer almost exclusively involved the hydroxyl oxygen of TEG. The adsorption energy of TEG on calcite in a vacuum environment calculated by classical MD amounted to 217 kJ/mol, which agreed very well with estimates found by using BOMD. Adsorption on hydrated calcite yielded a drastically lower value of 33 kJ/mol, with the corresponding adsorption free energy of 55.3 kJ/mol, giving an entropy increase of 22.3 kJ/mol due to adsorption. We found that the presence of TEG resulted in a decreased magnitude of the adsorption free energy of water, thus decreasing the calcite wettability. This effect can have a profound effect on oil and gas reservoir properties and must be carefully considered when evaluating the risk of hydrate nucleation.
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Affiliation(s)
- Richard Olsen
- Department of Physics and Technology, University of Bergen, Allégaten 55, 5007 Bergen, Norway
| | - Kim N Leirvik
- Department of Physics and Technology, University of Bergen, Allégaten 55, 5007 Bergen, Norway
| | - Bjørn Kvamme
- Department of Physics and Technology, University of Bergen, Allégaten 55, 5007 Bergen, Norway
| | - Tatiana Kuznetsova
- Department of Physics and Technology, University of Bergen, Allégaten 55, 5007 Bergen, Norway
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35
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Synthesis, characterization and DFT-modeling of novel agents for the protection and restoration of historical calcareous stone substrates. J Colloid Interface Sci 2015; 448:320-30. [DOI: 10.1016/j.jcis.2015.01.092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 12/23/2014] [Accepted: 01/27/2015] [Indexed: 11/30/2022]
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36
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Probing the energetics of organic-nanoparticle interactions of ethanol on calcite. Proc Natl Acad Sci U S A 2015; 112:5314-8. [PMID: 25870281 DOI: 10.1073/pnas.1505874112] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Knowing the nature of interactions between small organic molecules and surfaces of nanoparticles (NP) is crucial for fundamental understanding of natural phenomena and engineering processes. Herein, we report direct adsorption enthalpy measurement of ethanol on a series of calcite nanocrystals, with the aim of mimicking organic-NP interactions in various environments. The energetics suggests a spectrum of adsorption events as a function of coverage: strongest initial chemisorption on active sites on fresh calcite surfaces, followed by major chemical binding to form an ethanol monolayer and, subsequently, very weak, near-zero energy, physisorption. These thermochemical observations directly support a structure where the ethanol monolayer is bonded to the calcite surface through its polar hydroxyl group, leaving the hydrophobic ends of the ethanol molecules to interact only weakly with the next layer of adsorbing ethanol and resulting in a spatial gap with low ethanol density between the monolayer and subsequent added ethanol molecules, as predicted by molecular dynamics and density functional calculations. Such an ordered assembly of ethanol on calcite NP is analogous to, although less strongly bonded than, a capping layer of organics intentionally introduced during NP synthesis, and suggests a continuous variation of surface structure depending on molecular chemistry, ranging from largely disordered surface layers to ordered layers that nevertheless are mobile and can rearrange or be displaced by other molecules to strongly bonded immobile organic capping layers. These differences in surface structure will affect chemical reactions, including the further nucleation and growth of nanocrystals on organic ligand-capped surfaces.
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Keller KS, Olsson MHM, Yang M, Stipp SLS. Adsorption of ethanol and water on calcite: dependence on surface geometry and effect on surface behavior. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:3847-3853. [PMID: 25790337 DOI: 10.1021/la504319z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Molecular dynamics (MD) simulations were used to explore adsorption on calcite, from a 1:1 mixture of ethanol and water, on planar {10.4} and stepped, i.e. vicinal, surfaces. Varying the surface geometry resulted in different adsorption patterns, which would directly influence the ability of ethanol to control calcite crystal growth, dissolution, and adsorption/desorption of other ions and molecules. Ethanol forms a well-ordered adsorbed layer on planar faces and on larger terraces, such as between steps and defects, providing little chance for water, with its weaker attachment, to displace it. However, on surfaces with steps, adsorption affinity depends on the length of the terraces between the steps. Long terraces allow ethanol to form a well-ordered, hydrophobic layer, but when step density is high, ethanol adsorption is less ordered, allowing water to associate at and near the steps and even displacing pre-existing ethanol. Water adsorbed at steps forms mass transport pathways between the bulk solution and the solid surface. Our simulations confirm the growth inhibiting properties of ethanol, also explaining how certain crystal faces are more stabilized because of their surface geometry. The -O(H) functional group on ethanol forms tight bonds with calcite; the nonpolar, -CH3 ends, which point away from the surface, create a hydrophobic layer that changes surface charge, thus wettability, and partly protects calcite from precipitation and dissolution. These tricks could easily be adopted by biomineralizing organisms, allowing them to turn on and off crystal growth. They undoubtedly also play a role in the wetting properties of mineral surfaces in commercial CaCO3 manufacture, oil production, and contamination remediation.
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Affiliation(s)
- K S Keller
- †Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - M H M Olsson
- †Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - M Yang
- ‡School of Material Science and Engineering, Southwest Petroleum University, Sichuan, China
| | - S L S Stipp
- †Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
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38
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Na C, Tang Y, Wang H, Martin ST. Opposing effects of humidity on rhodochrosite surface oxidation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:2366-2371. [PMID: 25656732 DOI: 10.1021/la504465y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Rhodochrosite (MnCO3) is a model mineral representing carbonate aerosol particles containing redox-active elements that can influence particle surface reconstruction in humid air, thereby affecting the heterogeneous transformation of important atmospheric constituents such as nitric oxides, sulfur dioxides, and organic acids. Using in situ atomic force microscopy, we show that the surface reconstruction of rhodochrosite in humid oxygen leads to the formation and growth of oxide nanostructures. The oxidative reconstruction consists of two consecutive processes with distinctive time scales, including a long waiting period corresponding to slow nucleation and a rapid expansion phase corresponding to fast growth. By varying the relative humidity from 55 to 78%, we further show that increasing humidity has opposing effects on the two processes, accelerating nucleation from 2.8(±0.2) × 10(-3) to 3.0(±0.2) × 10(-2) h(-1) but decelerating growth from 7.5(±0.3) × 10(-3) to 3.1(±0.1) × 10(-3) μm(2) h(-1). Through quantitative analysis, we propose that nanostructure nucleation is controlled by rhodochrosite surface dissolution, similar to the dissolution-precipitation mechanism proposed for carbonate mineral surface reconstruction in aqueous solution. To explain nanostructure growth in humid oxygen, a new Cabrera-Mott mechanism involving electron tunneling and solid-state diffusion is proposed.
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Affiliation(s)
- Chongzheng Na
- Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame , 156 Fitzpatrick Hall, Notre Dame, Indiana 46556, United States
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39
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Bovet N, Yang M, Javadi MS, Stipp SLS. Interaction of alcohols with the calcite surface. Phys Chem Chem Phys 2015; 17:3490-6. [DOI: 10.1039/c4cp05235h] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
XPS spectra for adsorption of ethanol on clean calcite (left) and snapshot of MD simulations for monolayer adsorption of various alcohols on calcite.
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Affiliation(s)
- N. Bovet
- Nano-Science Center
- Department of Chemistry
- University of Copenhagen
- Denmark
| | - M. Yang
- Nano-Science Center
- Department of Chemistry
- University of Copenhagen
- Denmark
- School of Materials Science and Engineering
| | - M. S. Javadi
- Nano-Science Center
- Department of Chemistry
- University of Copenhagen
- Denmark
| | - S. L. S. Stipp
- Nano-Science Center
- Department of Chemistry
- University of Copenhagen
- Denmark
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40
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Nada H. Importance of water in the control of calcite crystal growth by organic molecules. Polym J 2014. [DOI: 10.1038/pj.2014.87] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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41
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Tuning calcite morphology and growth acceleration by a rational design of highly stable protein-mimetics. Sci Rep 2014; 4:6266. [PMID: 25189418 PMCID: PMC5385837 DOI: 10.1038/srep06266] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 08/15/2014] [Indexed: 12/02/2022] Open
Abstract
In nature, proteins play a significant role in biomineral formation. One of the ultimate goals of bioinspired materials science is to develop highly stable synthetic molecules that mimic the function of these natural proteins by controlling crystal formation. Here, we demonstrate that both the morphology and the degree of acceleration or inhibition observed during growth of calcite in the presence of peptoids can be rationally tuned by balancing the electrostatic and hydrophobic interactions, with hydrophobic interactions playing the dominant role. While either strong electrostatic or hydrophobic interactions inhibit growth and reduces expression of the {104} faces, correlations between peptoid-crystal binding energies and observed changes in calcite growth indicate moderate electrostatic interactions allow peptoids to weakly adsorb while moderate hydrophobic interactions cause disruption of surface-adsorbed water layers, leading to growth acceleration with retained expression of the {104} faces. This study provides fundamental principles for designing peptoids as crystallization promoters, and offers a straightforward screening method based on macroscopic crystal morphology. Because peptoids are sequence-specific, highly stable, and easily synthesized, peptoid-enhanced crystallization offers a broad range of potential applications.
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42
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Guo XY, Watermann T, Sebastiani D. Local Microphase Separation of a Binary Liquid under Nanoscale Confinement. J Phys Chem B 2014; 118:10207-13. [DOI: 10.1021/jp505203t] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xiang-Yang Guo
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Tobias Watermann
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Daniel Sebastiani
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, 06120 Halle (Saale), Germany
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43
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Fernandes M, Almeida Paz FA, Mano JF, de Zea Bermudez V. Investigation of calcium carbonate precipitated in the presence of alkanols. CRYSTAL RESEARCH AND TECHNOLOGY 2014. [DOI: 10.1002/crat.201400059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- M. Fernandes
- Chemistry Department and CQ-VR; University of Trás-os-Montes e Alto Douro; 5001-801 Vila Real Portugal
| | - F. A. Almeida Paz
- Chemistry Department and CICECO; University of Aveiro; 3810-193 Aveiro Portugal
| | - J. F. Mano
- 3B´s Research Group, University of Minho; AvePark; 4806-909 Taipas Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - V. de Zea Bermudez
- Chemistry Department and CQ-VR; University of Trás-os-Montes e Alto Douro; 5001-801 Vila Real Portugal
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44
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Adsorption of Aerosol-OT at the calcite/water interface – Comparison of the sodium and calcium salts. J Colloid Interface Sci 2014; 418:140-6. [DOI: 10.1016/j.jcis.2013.11.046] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Revised: 11/17/2013] [Accepted: 11/18/2013] [Indexed: 11/24/2022]
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45
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Okhrimenko DV, Nissenbaum J, Andersson MP, Olsson MHM, Stipp SLS. Energies of the adsorption of functional groups to calcium carbonate polymorphs: the importance of -OH and -COOH groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:11062-73. [PMID: 23919655 DOI: 10.1021/la402305x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The adsorption behavior of calcium carbonate is an important factor in many processes in nature, industry, and biological systems. We determined and compared the adsorption energies for a series of small molecules of different sizes and polarities (i.e., water, several alcohols, and acetic acid) on three synthetic CaCO3 polymorphs (calcite, aragonite, and vaterite). We measured isosteric heats of adsorption from vapor adsorption isotherms for 273 < T < 293 K, and we used XRD and SEM to confirm that samples did not change phase during the experiments. Density functional calculations and molecular dynamics simulations complemented the experimental results and aided interpretation. Alcohols with molecular mass greater than that of methanol bind more strongly to the calcium carbonate polymorphs than water and acetic acid. The adsorption energies for the alcohols are typical of chemisorption and indicate alcohol displacement of water from calcium carbonate surfaces. This explains why organisms favor biomolecules that contain alcohol functional groups (-OH) to control which polymorph they use, the crystal face and orientation, and the particle shape and size in biomineralization processes. This new insight is also very useful in understanding organic molecule adsorption mechanisms in soils, sediments, and rocks, which is important for predicting the behavior of mineral-fluid interactions when the challenge is to remediate contaminated groundwater aquifers or to produce oil and gas from reservoirs.
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Affiliation(s)
- D V Okhrimenko
- Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark.
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46
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Imada H, Kimura K, Onishi H. Water and 2-propanol structured on calcite (104) probed by frequency-modulation atomic force microscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:10744-51. [PMID: 23945021 DOI: 10.1021/la402090w] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The structure of liquid water and 2-propanol on the (104) surface of calcite (CaCO3) was probed by frequency-modulation atomic force microscopy. The microscope tip scanned each liquid to record the tip-surface force perturbed by the liquid structure at the interface. In water, the force distribution on planes cross-sectional to the surface presents a 0.5-nm-thick checkerboard-like pattern matching the corrugated topography of the calcite surface. This provides evidence that the local water density was laterally and vertically modulated. With 2-propanol, a laterally uniform, vertically layered structure was found between the first laterally structured layer and the bulk liquid. These results are consistent with the density distributions of water and ethanol proposed in earlier X-ray and simulation studies.
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Affiliation(s)
- Hirotake Imada
- Department of Chemistry, School of Science, Kobe University, Rokkodai, Nada, Kobe 657-8501, Japan
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47
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Phan A, Cole DR, Striolo A. Liquid Ethanol Simulated on Crystalline Alpha Alumina. J Phys Chem B 2013; 117:3829-40. [DOI: 10.1021/jp312238d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Anh Phan
- School of Chemical, Biological,
and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - David R. Cole
- School of Earth Sciences, The Ohio State University, Columbus, Ohio 43210, United
States
| | - Alberto Striolo
- School of Chemical, Biological,
and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
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48
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Wang L, Jin D, Wang L. Evolution of hierarchical-structured CaCO 3in binary mixed solvent. CRYSTAL RESEARCH AND TECHNOLOGY 2013. [DOI: 10.1002/crat.201200318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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49
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Pasarín IS, Bovet N, Glyvradal M, Nielsen MM, Bohr J, Feidenhans'l R, Stipp SLS. Atomic modifications by synchrotron radiation at the calcite-ethanol interface. JOURNAL OF SYNCHROTRON RADIATION 2012; 19:530-535. [PMID: 22713885 DOI: 10.1107/s0909049512021504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Accepted: 05/11/2012] [Indexed: 06/01/2023]
Abstract
This article reports on studies of the chemical alterations induced by synchrotron radiation at the calcite-ethanol interface, a simple model system for interfaces between minerals and more complex organic molecules containing OH groups. A combination of X-ray reflectivity and X-ray photoelectron spectroscopy of natural calcite, cleaved in distilled ethanol to obtain new clean interfaces, indicated that, during a 5 h period, the two top atomic layers of calcite, CaCO(3), transform into calcium oxide, CaO, by releasing CO(2). Also, the occupation of the first ordered layer of ethanol attached to calcite by hydrogen bonds almost doubles. Comparison between radiated and non-radiated areas of the same samples demonstrate that these effects are induced only by radiation and not caused by aging. These observations contribute to establishing a time limit for synchrotron experiments involving fluid-mineral interfaces where the polar OH group, as present in ethanol, plays a key role in their molecular structure and bonding. Also, the chemical evolution observed in the interface provides new insight into the behavior of some complex organic molecules involved in biomineralization processes.
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Affiliation(s)
- I S Pasarín
- Nano-Science Center, Department of Chemistry, University of Copenhagen, Denmark.
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50
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Kholmurodov K, Dushanov E, Yasuoka K, Khalil H, Galal A, Ahmed S, Sweilam N, Moharram H. Molecular dynamics study of ethanol solvated by water on the Pt (111) surface. Chem Phys 2012. [DOI: 10.1016/j.chemphys.2012.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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