montmorillonite – TechConnect Briefs

Alginate/Montmorillonite nancomposites for the delivery of curcumin

Ramadan A.R., Ahmed M., The American University in Cairo, EG

Curcumin is a well-known traditional medicine with anti-inflammatory and antioxidant properties. Its pharmacological mechanism of action and safety have been studied to investigate its use in clinical and therapeutic applications. However, its low water solubility [...]

Conductive Ppy-DS/Fe-MMT Layered Nanocomposites

Enomoto H., Kanda R., Lerner M.M., Osaka Electro-Communication University, JP

Conductive polypyrrole/montmorillonite (Ppy/MMT) nanocomposites were synthesized by the in-situ polymerization of Ppy in the gallery of MMT layers. The constrained environment of the interlayer gallery of clay host is expected to serve as a template [...]

Interaction of Surface Modified Silica Nanoparticles with Clay Minerals

Metin C.O., Nguyen Q.P., The University of Texas at Austin, US

The interaction of silica nanoparticles with montmorillonite clay was investigated by visual swelling tests, Fourier Transform Infrared (FTIR), and x-ray diffraction (XRD). The adsorption of silica nanoparticles onto montmorillonite was also studied with a UV-Vis [...]

Interaction of Surface Modified Silica Nanoparticles with Clay Minerals

Metin C.O., Nguyen Q.P., The University of Texas at Austin, US

The interaction of silica nanoparticles with montmorillonite clay was investigated by visual swelling tests, Fourier Transform Infrared (FTIR), and x-ray diffraction (XRD). The adsorption of silica nanoparticles onto montmorillonite was also studied with a UV-Vis [...]

Preparation of Composite of ZnS Nanoparticles and Montmorillonite by Cavitation Deposition

Praus P., Svoboda L., Kostura B., VŠB-Technical University of Ostrava, CZ

The ZnS-montmorillonite (MMT) nanocomposite was formed by cavitation implosion of ZnS nanoparticles into MMT pores. As a result of very high impact velocities at collisions of ZnS nanoparticles and MMT particles increase of a number [...]

Polyol–clay matrices with improved hydrophilic character and affinity towards CO2 – Attempts to CO2 concentration at room temperature

Nousir S., Ghomari K., Roy R., Azzouz A., University of Quebec at Montreal, CA

Polyol-clay matrices were prepared by incorporating various polyalcohols ranging from ethylene-glycol to bulky polyol dendrimers. Through thermal programmed desorption (TPD) revealed a significant enhancement of both the hydrophilic character and affinity towards CO2. The amounts [...]

Polyol–clay matrices with improved hydrophilic character and affinity towards CO2 – Attempts to CO2 concentration at room temperature

Nousir S., Ghomari K., Roy R., Azzouz A., University of Quebec at Montreal, CA

Polyol-clay matrices were prepared by incorporating various polyalcohols ranging from ethylene-glycol to bulky polyol dendrimers. Through thermal programmed desorption (TPD) revealed a significant enhancement of both the hydrophilic character and affinity towards CO2. The amounts [...]

New Electrochemical Sensors Based on Clay and Carbon Micro and Nanoparticles for Pharmaceutical and Environmental Analysis

Maghear A., Cernat A., Cristea C., Marian A., Marian I.O., Marian A., Marian I.O., Săndulescu R., Iuliu Hatieganu University of Medicine and Pharmacy, RO

New composite materials based on clay micro and nanoparticles, MWCNTs and polymeric films for the development of electrochemical sensors and biosensors have been realized. Particle size separation of two Romanian bentonites from Răzoare and Valea [...]

Order Development in Polymer-Clay Nanocomposites: from Aqueous Gels to Multilayered Films

Stefanescu C., Stefanescu E.A., Stefanescu C., Stefanescu E.A., Daly W.H., Negulescu I.I., Virginia Commonwealth University, US

When passing a material through a semihyperbolic convergent die in an elongational rheometer, high degrees of order are induced in the material, and the entropy changes, indicative of orientation, can be calculated. The aim of [...]

Corrosion Protection by Multifunctional Stratified Coatings

Westcott S.L., Kotov N.A., Ostrander J.W., Mamedov A.A., Reust D.K., Roark J.P., Nomadics, Inc., US

We have demonstrated a hybrid coating consisting of both a stratified layer that incorporates corrosion inhibiting ions and a silicate barrier layer. The stratified layer is applied to the aluminum alloy using the layer-by-layer assembly [...]