Results 1 to 10 of about 994,012 (284)

Evaluation of Antibacterial Activity and Characterization of Phytochemical Compounds from Selected Mangrove Plants [PDF]

open access: yesInternational Journal of Biomedicine, 2022
The aim of this study was to investigate the antibacterial activity of n-butanol, petroleum ether, ethyl acetate, ethanol, methanol, and chloroform extracts of the sponges and leaves of different mangrove species (Bruguiera cylindrica, Suaeda maritima ...
M. Duraipandian   +3 more
doaj   +1 more source

Solvent quality and solvent polarity in polypeptides

open access: yesPhysical Chemistry Chemical Physics, 2023
Synthetic polymers assume a compact/extended conformation in a poor/good solvent. Proteins, formed by both hydrophobic and polar moieties fold in water but not in apolar solvents. This difference can be rationalized and quantified by calculating the solvation free energy.
Dongmo Foumthuim, Cedrix J   +1 more
openaire   +3 more sources

Chain Conformations and Phase Separation in Polymer Solutions with Varying Solvent Quality [PDF]

open access: yesJournal of Polymer Science 59 (22), 2819-2831 (2021), 2021
Molecular dynamics simulations are used to investigate the conformations of a single polymer chain, represented by the Kremer-Grest bead-spring model, in a solution with a Lennard-Jones liquid as the solvent when the interaction strength between the polymer and solvent is varied.
arxiv   +1 more source

Influence of asymmetric depletion of solvents on the electric double layer of charged objects in binary polar solvent mixture [PDF]

open access: yesPhys. Chem. Chem. Phys., 2016,18, 26509-26518, 2022
For binary solvent mixtures composed of ions and two kinds of polar solvents, electric double layer near a charged object is strongly affected by not only the binary solvent composition but also nature of solvents such as volume and dipole moment of a solvent molecule. Accounting for difference in sizes of solvents and orientational ordering of solvent
arxiv   +1 more source

Contents of total phenolics and flavonoids in and antioxidant activity of Ilex paraguariensis leaves [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2019
: The objective of this work was to evaluate different solvents and times in the ultrasound-assisted extraction of polyphenols, in order to quantify the total phenolic and flavonoid contents in and the antioxidant activity of mate (Ilex paraguariensis ...
Dilson Antônio Bisognin   +4 more
doaj   +1 more source

Green–Solvent–Processable Perovskite Solar Cells

open access: yesAdvanced Energy & Sustainability Research, 2021
Organ–inorganic hybrid perovskite solar cells (PSCs) have attracted extensive attention with a certified power conversion efficiency (PCE) beyond 25% due to their superior photoelectric properties.
Yuying Cui   +3 more
doaj   +1 more source

Replacing SF6 in Electrical Gas-Insulated Switchgear: Technological Alternatives and Potential Life Cycle Greenhouse Gas Savings in an EU-28 Perspective

open access: yesEnergies, 2020
To date, atmospheric concentrations of sulfur hexafluoride (SF6) are the most potent among the greenhouse gases identified by the Intergovernmental Panel on Climate Change (IPCC) and are still rising.
Pieter Billen   +3 more
doaj   +1 more source

On the mechanism of the reaction of enamines and dimethyl acetylenedicarboxylate (DMAD) in polar and apolar solvents [PDF]

open access: yes, 1982
[2+2]-Cycloadducts of enamines and DMAD, formed in apolar solvents, isomerize to pyrrolizine derivatives under mild conditions in protic polar solvents like methanol and 1 ...
Reinhoudt, D.N.   +3 more
core   +8 more sources

Machine Learning Implicit Solvation for Molecular Dynamics [PDF]

open access: yesJ. Chem. Phys. 155, 084101 (2021), 2021
Accurate modeling of the solvent environment for biological molecules is crucial for computational biology and drug design. A popular approach to achieve long simulation time scales for large system sizes is to incorporate the effect of the solvent in a mean-field fashion with implicit solvent models. However, a challenge with existing implicit solvent
arxiv   +1 more source

Home - About - Disclaimer - Privacy