Results 21 to 30 of about 766,908 (329)

Structure-functional activity relationship of β-glucans from the perspective of immunomodulation : a mini-review [PDF]

open access: yes, 2020
β-Glucans are a heterogeneous group of glucose polymers with a common structure comprising a main chain of β-(1,3) and/or β-(1,4)-glucopyranosyl units, along with side chains with various branches and lengths.
Baruah, Sri Kartik   +4 more
core   +2 more sources

On the dynamics of molecular conformation [PDF]

open access: yesProceedings of the National Academy of Sciences, 2006
Understanding the mechanism of fast transitions between conformed states of large biomolecules is central to reconciling the dichotomy between the relatively high speed of metabolic processes and slow (random-walk based) estimates on the speed of biomolecular processes.
openaire   +2 more sources

Three closely related 1-[(1,3-benzodioxol-5-yl)methyl]-4-(halobenzoyl)piperazines: similar molecular structures but different intermolecular interactions

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2019
In each of the compounds 1-[(1,3-benzodioxol-5-yl)methyl]-4-(3-fluorobenzoyl)piperazine, C19H19FN2O3 (I), 1-[(1,3-benzodioxol-5-yl)methyl]-4-(2,6-difluorobenzoyl)piperazine, C19H18F2N2O3 (II), and 1-[(1,3-benzodioxol-5-yl)methyl]-4-(2,4-dichlorobenzoyl ...
Ninganayaka Mahesha   +6 more
doaj   +1 more source

Transferable atomic multipole machine learning models for small organic molecules [PDF]

open access: yes, 2015
Accurate representation of the molecular electrostatic potential, which is often expanded in distributed multipole moments, is crucial for an efficient evaluation of intermolecular interactions.
Andrienko, Denis   +2 more
core   +4 more sources

Crystal structures of two C,N-disubstituted acetamides: 2-(4-chlorophenyl)-N-(2-iodophenyl)acetamide and 2-(4-chlorophenyl)-N-(pyrazin-2-yl)acetamide

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
In the crystal of 2-(4-chlorophenyl)-N-(2-iodophenyl)acetamide, C14H11ClINO, molecules are linked by a combination of N—H...O and C—H...O hydrogen bonds to form a C(4)C(4)[R21(7)] chain of rings and chains of this type are linked by a combination of C—Cl.
Badiadka Narayana   +3 more
doaj   +1 more source

IMPACT OF TEMPERATURE ON THE STABILITY OF SILKWORM COCOON FIBERS [PDF]

open access: yesQuímica Nova, 2019
In this study raw and processed silkworm (Bombyx mori) cocoons were investigated using confocal Raman spectroscopy in conjunction with differential scanning calorimetry (DSC) in order to examine the effect of temperature on the molecular conformation of ...
Bruno Luís Sacco, Henrique de Santana
doaj   +1 more source

Employing Molecular Conformations for Ligand-Based Virtual Screening with Equivariant Graph Neural Network and Deep Multiple Instance Learning

open access: yesMolecules, 2023
Ligand-based virtual screening (LBVS) is a promising approach for rapid and low-cost screening of potentially bioactive molecules in the early stage of drug discovery.
Yaowen Gu   +4 more
doaj   +1 more source

Helix untwisting and bubble formation in circular DNA [PDF]

open access: yes, 2013
The base pair fluctuations and helix untwisting are examined for a circular molecule. A realistic mesoscopic model including twisting degrees of freedom and bending of the molecular axis is proposed.
Bates A. D.   +3 more
core   +2 more sources

Crystal structure of 2-benzoylamino-N′-(4-hydroxybenzylidene)-3-(thiophen-2-yl)prop-2-enohydrazide

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
In the title compound, C21H17N3O3S, the non-H atoms, apart from those in the benzoyl group, are almost coplanar (r.m.s. deviation = 0.049 Å) and the benzoyl group is almost orthogonal to the plane of the rest of the molecule [dihedral angle = 80.34 (6)°].
Karanth N. Subbulakshmi   +5 more
doaj   +1 more source

A mechanophysical phase transition provides a dramatic example of colour polymorphism: the tribochromism of a substituted tri(methylene)tetrahydrofuran-2-one [PDF]

open access: yes, 2014
BACKGROUND: Derivatives of fulgides have been shown to have interesting photochromic properties. We have synthesised a number of such derivatives and have found, in some cases, that crystals can be made to change colour on crushing, a phenomenon we have ...
Asiri, AM   +6 more
core   +2 more sources

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