Results 21 to 30 of about 4,764,380 (406)

Structural stability of biofilms produced from silkworm cocoon fibers [PDF]

Journal of the Serbian Chemical Society, 2022
Biofilms were obtained from cocoons of the silkworm, Bombyx mori, involving the removal of sericin, extraction and solubilization of fibroin fibers, dialysis of fibroin dispersions and preparation of biofilms by the casting process.
Felício Souza Madureira Ana Lúcia de, Santana Henrique de   +1 more
doaj   +1 more source

Ionic Liquid Lubricant for Ultra-Low Head-Media Spacing in Hard Disk Drives

Tribology Online, 2020
In order to attain high recording density in a hard disk drive, reduction of the head-media spacing (HMS) is crucial. The contribution of lubricant thickness to the HMS is a significant factor in performance.
Kouki Hatsuda, Nobuo Tano, Hiroshi Tani
doaj   +1 more source

Tetra­butyl­ammonium tris­(methyl­sulfanylmeth­yl)phenyl­borate [PDF]

, 2009
In the title molecular salt, C16H36N+·C12H20BS3-, three of the four n-butyl chains show a trans conformation, whereas the fourth has the C—C—C—C torsion angle in a gauche conformation [-77.8 (5)°]. In the crystal, mol­ecules are packed in layers parallel
Bolte, Michael, Lerner, Hans-Wolfram, Tillmann, Jan   +2 more
core   +3 more sources

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

Acta 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, Belakavadi K. Sagar, Hemmige S. Yathirajan, Tetsundo Furuya, Tomoyuki Haraguchi, Takashiro Akitsu, Christopher Glidewell   +6 more
doaj   +1 more source

Structural investigation of N-[2-(4-fluoro-3-phenoxybenzoyl)hydrazinecarbothioyl]benzamide and N-[2-(4-fluoro-3-phenoxybenzoyl)hydrazinecarbothioyl]-4-methoxybenzamide

Acta Crystallographica Section E: Crystallographic Communications, 2021
The compound N-[2-(4-fluoro-3-phenoxybenzoyl)hydrazinecarbothioyl]benzamide, C21H16FN3O3S, crystallizes in the monoclinic centrosymmetric space group P21/c and its molecular conformation is stabilized via an intramolecular N—H...O hydrogen bond.
Dhananjay Dey, I. Shruti, Deepak Chopra, T. P. Mohan   +3 more
doaj   +1 more source

Molecular flexibility of citrus pectins by combined sedimentation and viscosity analysis [PDF]

, 2007
The flexibility/rigidity of pectins plays an important part in their structure-function relationship and therefore on their commercial applications in the food and biomedical industries.
Alan Smith, Alvaro Ortega, Axelos, Bohdanecky, Braccini, Chapman, Corredig, Cros, Fishman, Gordon A. Morris, Harding, Harding, Harding, Harding, Hearst, Hearst, Huggins, Jonathan Castile, José García de al Torre, Kraemer, Kratky, Lapasin, Morris, Morris, Morris, Norziah, Noto, Pavlov, Pavlov, Perez, Picout, Pilgrim, Ralet, Ralston, Ridley, Rowe, Schuck, Schuck, Stephen E. Harding, Stockmayer, Tanford, Tombs, Van Buren, Wales, Willats, Wyatt, Yamakawa, Yoo   +47 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

Acta 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, Hemmige S. Yathirajan, Ravindranath Rathore, Christopher Glidewell   +3 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]

, 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, Heller, HG, Hughes, DS, Hursthouse, MB, Kendrick, J, Leusen, FJ, Montis, R   +6 more
core   +2 more sources

Crystal structures of (E)-1-{3-[(5-fluoro-2-hydroxybenzylidene)amino]phenyl}ethanone and of a fourth polymorph of (E)-1-{3-[(2-hydroxy-3-methoxybenzylidene)amino]phenyl}ethanone

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the molecules of both (E)-1-{3-[(5-fluoro-2-hydroxybenzylidene)amino]phenyl}ethanone, C15H12FNO2, (I), and (E)-1-{3-[(2-hydroxy-3-methoxybenzylidene)amino]phenyl}ethanone, C16H15NO3, (II), which crystallizes with Z′ = 2 in space group Pca21, there are
Marisiddaiah Girisha, Hemmige S. Yathirajan, Ravindranath S. Rathore, Christopher Glidewell   +3 more
doaj   +1 more source

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

Molecules, 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, Sang Guan You, Boo-Yong Lee   +2 more
doaj   +1 more source