Search results for "Gel"
showing 10 items of 3561 documents
Human Macrophage Invasion: Gelatin‐Hyaluronan Click‐Crosslinked Cryogels Elucidate Human Macrophage Invasion Behavior (Adv. Funct. Mater. 28/2021)
2021
How Ionic Liquid Gels Work on the Removal of Bisphenol A from Wastewater
2022
The occurrence of emerging pollutants in water bodies is a pressing issue of modern society and identifying materials to remove them is the main target of current research. In this work, we prepared and characterized supramolecular gels of 1,3:2,4-dibenzylidene-d-sorbitol (DBS) in ionic liquids differing for the anion and the aliphatic or aromatic nature of the cation. We characterized our gels for their thermal stability and mechanical properties. We also found that all gels self-heal in 24 h after being cut by a razor blade. We then used our gels as sorbents to remove bisphenol A, an endocrine disruptor compound, from aqueous solutions. All gels adsorb BPA with high removal efficiencies, …
Variability of shell repair in the Manila clam Ruditapes philippinarum affected by the Brown Ring Disease: A microstructural and biochemical study
2011
11 pages; International audience; For more than two decades, the Manila clam Ruditapes philippinarum has been regularly affected by Brown Ring Disease (BRD), an epizootic event caused by the bacterium Vibrio tapetis and characterized by the development of a brown deposit on the inner face of valves. Although BRD infection is often lethal, some clams recover by mineralizing a new repair shell layer, which covers the brown deposit and fully isolates it from living tissues. In order to understand this specific shell repair process, the microstructures of repaired zones were compared to those of shells unaffected by BRD. In addition, the organic matrix associated with unaffected shells and to r…
Phosphorylation of serine residues is fundamental for the calcium-binding ability of Orchestin, a soluble matrix protein from crustacean calcium stor…
2003
International audience; Orchestia cavimana is a terrestrial crustacean, which cyclically stores calcium in diverticula of the midgut, in the form of calcified amorphous concretions. These concretions are associated with a proteinaceous matrix, the main constituent of the soluble matrix is Orchestin, an acidic calcium-binding protein [Testenière et al., Biochem. J. 361 (2002) 327-335]. In the present paper, we clearly demonstrate that Orchestin is phosphorylated on serine and tyrosine residues, but that calcium binding only occurs via the phosphoserine residues. To our knowledge, this is the first example of an invertebrate mineralization for which a post-translational modification is clearl…
Sedimentation properties of chitosomal chitin synthetase from the wild-type strain and the 'slime' variant of Neurospora crassa.
1989
Marked differences in the pattern of sedimentation of cellular structures were observed after isopycnic centrifugation of crude cell-free preparations from the Neurospora crassa wall-less 'slime' variant and mycelial wild-type strain. Kinetic studies of particle sedimentation showed that the various types of subcellular components, as revealed by turbidity, UV absorption, polypeptide patterns, and chitin synthetase activity determinations, sediment independently of one another. An important feature was the finding that chitin synthetase from 'slime' peaked at a median specific gravity of 1.1201 +/- 0.0036, whereas that from wild-type strain sedimented at a higher buoyant density (specific g…
Bio-polymeric Ionic Liquid Gels for the Desulfurization of Fuel
Hoc in aureo opere optimo cuiq[ue] lectori apprime necessario haec sequentia contine[n]tur, videlicet Textus bibliae cum Glossa ordinaria, Nicolai de…
1528
Sig. a-z8/6, A-L6/8, M6. - Inclou una Epístola de Conradus Leontorius V. - Quinta pars huius operis in se continens Glossam Ordinaria[m] cu[m] expositio[n]e literali & morali... Nicolai Lyrani, necno[n] additio[n]ib[us] ac Replicis super libros Matthaei, Marci, Lucae, Iohannis... - 244 f. Un sol grav. xil. al f. 7r. - Port. amb orla i grav. xil. - Capitals grav. Text envoltat pel comentari, a dos col. - Postil·les marginals. - Reclams. - Registre. - Errates de fol.
[Epistolas y Euangelios delos domingos y festiuidades principales enlas quales hay sermones o doctrinas sobre el euangelio dela mesma fiesta ... / Fr…
1512
Sig. [ ]1, [creu grega]6, a-n8, o6, p-q10, r-z8. A-B8, C10, D-E8, F6 Capitals grav. - Els grav. xil. Lletra gòtica. - Text amb postil·les marginals. - Text dels evangelis i epístoles a dos col., els sermons a línia tirada
Evangelicarum Institutionum, libri octo ... / Authore P. Garcia Galarza ... Episcopo Cauriensi
1579
Sig.: *9, a6, A-Y8, Z4 Caplletres orl. - Errades de fol. - Port. amb escut xil.