Results 31 to 40 of about 3,781,135 (297)

Macromolecular conformation of chitosan in dilute solution: A new global hydrodynamic approach [PDF]

open access: yes, 2009
Chitosans of different molar masses were prepared by storing freshly prepared samples for up to 6 months at either 4, 25 or 40 °C. The weight-average molar masses, Mw and intrinsic viscosities, [η] were then measured using size exclusion chromatography
Adams, G. G.   +4 more
core   +1 more source

Molecular Information Technology [PDF]

open access: yes, 2005
Molecular materials are endowed with unique properties of unrivaled potential for high density integration of computing systems. Present applications of molecules range from organic semiconductor materials for low-cost circuits to genetically modified ...
Zauner, Klaus-Peter, Klaus-Peter Zauner
core   +1 more source

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

CircRNA May Not Be “Circular”

open access: yesFrontiers in Genetics, 2021
Circular RNA (circRNA) is a novel regulatory non-coding RNA and participates in diverse physiological and pathological processes. However, the structures and molecular mechanisms of circRNAs remain unclear.
Handong Sun   +14 more
doaj   +1 more source

Conformation of the Mineralocorticoid Receptor N-terminal Domain: Evidence for Induced and Stable Structure [PDF]

open access: yes, 2010
The mineralocorticoid receptor (MR) binds the steroid hormones aldosterone and cortisol and has an important physiological role in the control of salt homeostasis.
Fischer, Katharina   +14 more
core   +1 more source

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

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

Study on the temperature dependence of the bulk modulus of polyisoprene by molecular dynamics simulations [PDF]

open access: yes, 2008
The temperature dependence of the bulk modulus of polyisoprene has been studied using molecular dynamics simulations. Virtual polyisoprenes have been submitted to volume contractions above and below the glass transition. Bulk modulus has been observed to
GILORMINI, Pierre   +2 more
core   +1 more source

Relationship between Oversulfation and Conformation of Low and High Molecular Weight Fucoidans and Evaluation of Their in Vitro Anticancer Activity

open access: yesMolecules, 2010
Low and high molecular weight fucoidans (F5-30K and F>30K) were chemically modified through the addition of sulfate groups, and the effect of oversulfation on the in vitro anticancer activity was investigated. After the addition of sulfate groups,
Myoung Lae Cho   +2 more
doaj   +1 more source

Order versus disorder in two isomorphous pyrazolone-substituted diethyl propanedioates prepared using a three-component one-pot reaction under solvent-free conditions

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2020
Two new substituted propanedioate esters have been synthesized using a three-component solvent-free thermal reaction between diethyl propanedioate (diethyl malonate), 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde and an aryl azide, forming two ...
Tharangini K. Shreekanth   +4 more
doaj   +1 more source

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