Results 21 to 30 of about 1,954,606 (334)

Comparison of Fatty Acid Composition and Antioxidant Contents of Tribulus Terrestris L. Collected from Different Localities

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2021
For a long time, many cultures around the world have used Tribulus terrestris L. in the prevention and treatment of various diseases. In this study, the antioxidant activity and total phenolic and flavonoid content of extracts obtained with various ...
Nazan Çömlekçioğlu, Rıdvan Çırak
doaj   +1 more source

All-Cellulose Composites: A Review of Recent Studies on Structure, Properties and Applications

open access: yesMolecules, 2020
Nowadays, there is greater demand for greener materials in societies due to environmental consciousness, depleting fossil fuels and growing ecological concerns.
Behnaz Baghaei, Mikael Skrifvars
doaj   +1 more source

Solute Effects on the Helix-Coil Transition [PDF]

open access: yes, 2002
We discuss the effects of the solvent composition on the helix-coil transition of a polypeptide chain. We use a simple model to demonstrate that improving the hydrogen-bonding ability of the solvent can make the transition less cooperative, without ...
Farago, Oded, Pincus, Philip
core   +1 more source

Effect of the environment on the electrical conductance of the single benzene-1,4-diamine molecule junction

open access: yesBeilstein Journal of Nanotechnology, 2011
We investigated the effect of the environment on the electrical conductance of a single benzene-1,4-diamine (BDA) molecule bridging Au electrodes, using the scanning tunneling microscope (STM).
Shigeto Nakashima   +2 more
doaj   +1 more source

Porosity and morphology control of mesoporous Cu-BTC Metal-Organic Framework microparticles [PDF]

open access: yesProgress in Physics of Applied Materials
In this study, Cu-BTC structures, one of the most widely used metal-organic frameworks (MOF), were synthesized by solvothermal technique, and the effect of metal-to-ligand ratio and the solvent content on their crystalline structure, chemical bonding ...
Kobra Vazirinezhad   +2 more
doaj   +1 more source

Polyphenols Recovery from Tropical Fruits (Pink Guava) Wastes via Ultra-Filtration Membrane Technology Application by Optimum Solvent Selection [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2016
Wastes generated from the processing of some fruits still contain large amounts of chemical components such as polyphenols, which are deemed as very effective antioxidants.This study involves the characterization of wastes generation by pink guava ...
Lilis Sukeksi   +4 more
doaj  

Coupling hydrophobic, dispersion, and electrostatic contributions in continuum solvent models [PDF]

open access: yes, 2005
Recent studies of the hydration of micro- and nanoscale solutes have demonstrated a strong {\it coupling} between hydrophobic, dispersion and electrostatic contributions, a fact not accounted for in current implicit solvent models.
H. S. Ashbaugh   +4 more
core   +1 more source

The local phase transitions of the solvent in the neighborhood of a solvophobic polymer at high pressures

open access: yes, 2014
We investigate local phase transitions of the solvent in the neighborhood of a solvophobic polymer chain which is induced by a change of the polymer-solvent repulsion and the solvent pressure in the bulk solution.
Budkov, Yu. A.   +5 more
core   +1 more source

Solvent mediated interactions between model colloids and interfaces: A microscopic approach [PDF]

open access: yes, 2009
We determine the solvent mediated contribution to the effective potentials for model colloidal or nano- particles dispersed in a binary solvent that exhibits fluid-fluid phase separation.
Andrew J. Archer   +7 more
core   +3 more sources

Critical Casimir forces and colloidal aggregation: A numerical study

open access: yes, 2012
We present a numerical study of the effective potential $V_\mathrm{eff}$ between two hard-sphere colloids dispersed in a solvent of interacting particles, for several values of temperature and solvent density, approaching the solvent gas-liquid critical ...
Asakura   +40 more
core   +1 more source

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