Search Results - "Kubicki, James D"
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A density functional theory study on the shape of the primary cellulose microfibril in plants: effects of C6 exocyclic group conformation and H-bonding
Published in Cellulose (London) (01-03-2020)“…Periodic planewave and molecular cluster density functional theory (DFT) calculations were performed on three potential arrangements of 18 chain chain…”
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Cellulose Structural Polymorphism in Plant Primary Cell Walls Investigated by High-Field 2D Solid-State NMR Spectroscopy and Density Functional Theory Calculations
Published in Biomacromolecules (13-06-2016)“…The native cellulose of bacterial, algal, and animal origins has been well studied structurally using X-ray and neutron diffraction and solid-state NMR…”
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X‑ray Absorption Spectroscopic Quantification and Speciation Modeling of Sulfate Adsorption on Ferrihydrite Surfaces
Published in Environmental science & technology (02-08-2016)“…Sulfate adsorption on mineral surfaces is an important environmental chemical process, but the structures and respective contribution of different adsorption…”
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The Shape of Native Plant Cellulose Microfibrils
Published in Scientific reports (18-09-2018)“…Determining the shape of plant cellulose microfibrils is critical for understanding plant cell wall molecular architecture and conversion of cellulose into…”
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ATR–FTIR and Density Functional Theory Study of the Structures, Energetics, and Vibrational Spectra of Phosphate Adsorbed onto Goethite
Published in Langmuir (16-10-2012)“…Periodic plane-wave density functional theory (DFT) and molecular cluster hybrid molecular orbital–DFT (MO–DFT) calculations were performed on models of…”
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Tertiary model of a plant cellulose synthase
Published in Proceedings of the National Academy of Sciences - PNAS (30-04-2013)“…A 3D atomistic model of a plant cellulose synthase (CESA) has remained elusive despite over forty years of experimental effort. Here, we report a…”
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Bridging molecular-scale interfacial science with continuum-scale models
Published in Nature communications (22-06-2024)“…Solid–water interfaces are crucial for clean water, conventional and renewable energy, and effective nuclear waste management. However, reflecting the…”
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Quantum Chemical Study of Arsenic (III, V) Adsorption on Mn-Oxides: Implications for Arsenic(III) Oxidation
Published in Environmental science & technology (01-09-2009)“…Density functional theory (DFT) calculations were used to investigate As(V) and As(III) surface complex structures and reaction energies on both Mn(III) and…”
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An evaluation of the structures of cellulose generated by the CHARMM force field: comparisons to in planta cellulose
Published in Cellulose (London) (01-07-2018)“…Molecular dynamics simulations of cellulose regularly sample a conformational space different to the crystal structures they were initiated from, with changes…”
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Simulations of Cellulose Synthesis Initiation and Termination in Bacteria
Published in The journal of physical chemistry. B (02-05-2019)“…The processivity of cellulose synthesis in bacterial cellulose synthase (CESA) was investigated using molecular dynamics simulations and the hybrid quantum…”
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Fourier-transform infrared spectroscopy (FTIR) analysis of triclinic and hexagonal birnessites
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (05-05-2017)“…The characterization of birnessite structures is particularly challenging for poorly crystalline materials of biogenic origin, and a determination of the…”
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Grazing-incidence diffraction reveals cellulose and pectin organization in hydrated plant primary cell wall
Published in Scientific reports (03-04-2023)“…The primary cell wall is highly hydrated in its native state, yet many structural studies have been conducted on dried samples. Here, we use grazing-incidence…”
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Cellulose Microfibril Twist, Mechanics, and Implication for Cellulose Biosynthesis
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (28-03-2013)“…All-atom molecular dynamics simulations with explicit water solvent were used to investigate the microstructure and conformational dynamics of cellulose Iβ…”
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Density functional theory modeling of chromate adsorption onto ferrihydrite nanoparticles
Published in Geochemical transactions GT (01-03-2018)“…Density functional theory (DFT) calculations were performed on a model of a ferrihydrite nanoparticle interacting with chromate ( CrO 4 2 - ) in water. Two…”
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Integrating Density Functional Theory Modeling with Experimental Data to Understand and Predict Sorption Reactions: Exchange of Salicylate for Phosphate on Goethite
Published in Soil systems (01-06-2020)“…Density functional theory (DFT) calculations are a quantum mechanical approach that can be used to model chemical reactions on an atomistic scale. DFT provides…”
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The Mechanism Responsible for Extraordinary Cs Ion Selectivity in Crystalline Silicotitanate
Published in Journal of the American Chemical Society (03-09-2008)“…Combining information from time-resolved X-ray and neutron scattering with theoretical calculations has revealed the elegant mechanism whereby hydrogen…”
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Quantum Mechanical Modeling of the Vibrational Spectra of Minerals with a Focus on Clays
Published in Minerals (Basel) (27-02-2019)“…We present an overview of how to use quantum mechanical calculations to predict vibrational frequencies of molecules and materials such as clays and silicates…”
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Photoinduced activation of CO₂ on TiO₂ surfaces: Quantum chemical modeling of CO₂ adsorption on oxygen vacancies
Published in Fuel processing technology (01-04-2011)“…Chemical processes that utilize CO₂ emissions from coal-fired power plants will be required as the world progresses towards reducing CO₂ emissions. The…”
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Evaluating Glutamate and Aspartate Binding Mechanisms to Rutile (α-TiO2) via ATR-FTIR Spectroscopy and Quantum Chemical Calculations
Published in Langmuir (01-03-2011)“…Attenuated total reflectance (ATR) Fourier transform infrared (FTIR) spectroscopy and quantum chemical calculations were used to elucidate the influence of…”
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Arsenic Adsorption onto Minerals: Connecting Experimental Observations with Density Functional Theory Calculations
Published in Minerals (Basel) (01-06-2014)“…A review of the literature about calculating the adsorption properties of arsenic onto mineral models using density functional theory (DFT) is presented…”
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