5 results match your criteria Applied Clay Science[Journal]

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Interfacial Structure and Interaction of Kaolinite Intercalated with N-methylformamide Insight from Molecular Dynamics Modeling.

Appl Clay Sci 2018 Jun 4;158:204-210. Epub 2018 Apr 4.

Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824, United States.

The evolution of basal spacing and interfacial structure of kaolinite-N-methylformamide (NMF) complexes during the intercalation process were difficult to obtain using experimental methods. In present study, a series of kaolinite-NMF complex models with various numbers of NMF molecules in the interlayer space were constructed to mimic the progressive stage of the intercalation process of kaolinite intercalated by NMF. The MD simulations were performed on these models to explore the evolution of basal spacing and interfacial structure of kaolinite-NMF complexes during the intercalation process. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01691317183014
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http://dx.doi.org/10.1016/j.clay.2018.03.032DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6197067PMC
June 2018
15 Reads

Mechanism Responsible for Intercalation of Dimethyl Sulfoxide in Kaolinite: Molecular Dynamics Simulations.

Appl Clay Sci 2018 Jan 5;151:46-53. Epub 2017 Nov 5.

Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824, United States.

Intercalation is the promising strategy to expand the interlayer region of kaolinite for their further applications. Herein, the adaptive biasing force (ABF) accelerated molecular dynamics simulations were performed to calculate the free energies involved in the kaolinite intercalation by dimethyl sulfoxide (DMSO). Additionally, the classical all atom molecular dynamics simulations were carried out to calculate the interfacial interactions between kaolinite interlayer surfaces and DMSO with the aim at exploring the underlying force that drives the DMSO to enter the interlayer space. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01691317173047
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http://dx.doi.org/10.1016/j.clay.2017.10.022DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5846688PMC
January 2018
10 Reads

Exfoliation and intercalation of montmorillonite by small peptides.

Appl Clay Sci 2015 Apr;107:173-181

Department of Earth and Atmospheric Sciences, The City College of New York, 160 Convent Ave, New York, NY, 10031.

Understanding structural changes in clay minerals induced by complexation with organic matter is relevant to soil science and agricultural applications. In this study, the effect of peptide storage in montmorillonite and the thermal stability of peptide-clay complexes was examined through characterization by X-ray diffraction (XRD), electron microscopy, UV absorption, and thermogravimetric analysis (TGA). XRD analysis of small peptide-montmorillonite clay complexes produced profiles consisting of reflections associated with the smectite 001 reflection and related peaks similar to that produced by a mixed layer clay mineral structure. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S01691317150003
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http://dx.doi.org/10.1016/j.clay.2015.01.021DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4375959PMC
April 2015
3 Reads

Characterization and Safety of Uniform Particle Size NovaSil Clay as a Potential Aflatoxin Enterosorbent.

Appl Clay Sci 2011 Dec;54(3-4):248-257

Interdisciplinary Faculty of Toxicology, Department of Veterinary Integrative Biosciences, College of Veterinary Medicine, Texas A&M University 77843-4458 TAMU, College Station, TX, USA.

NovaSil (NS) clay, a common anti-caking agent in animal feeds, has been shown to adsorb aflatoxins and diminish their bioavailability in multiple animal models. The safety of long-term dietary exposure to NS has also been demonstrated in a 6-month sub-chronic study in rats and in a 3-month intervention in humans highly exposed to aflatoxins. Uniform particle size NovaSil (UPSN) is a refined material derived from parent NS; it contains lower levels of dioxins/furans, and has been selected for a more consistent uniform particle size. Read More

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http://dx.doi.org/10.1016/j.clay.2011.09.009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3253772PMC
December 2011
2 Reads

Methylene-Functionalize Saponite: A New Type of Organoclay with CH(2) Groups Substituting for Bridging Oxygen Centers in the Tetrahedral Sheet.

Appl Clay Sci 2010 Mar;48(1-2):60-66

Department of Chemistry, Michigan State University, MI 48824 USA.

The synthesis of saponite in the presence of bis(triethoxysilyl)methane (BTESM) as an organosilicon reagent results in the replacement of up to 33.3 % of the oxygen atoms in the tetrahedral sheet by bridging methylene groups. The methylene-functionalized saponites represent a new form of covalently-bonded organoclay that truly is isomorphic with purely inorganic saponite made under equivalent reaction conditions from sodium silicate as the silicon source. Read More

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http://dx.doi.org/10.1016/j.clay.2009.11.006DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2874865PMC
March 2010
6 Reads
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