Search results for "GOME"
showing 10 items of 329 documents
Valorization of apple peels through the study of the effects on the amyloid aggregation process of ?-casein
2021
Waste valorization represents one of the main social challenges when promoting a circular economy and environmental sustainability. Here, we evaluated the effect of the polyphenols extracted from apple peels, normally disposed of as waste, on the amyloid aggregation process of ?-casein from bovine milk, a well-used amyloidogenic model system. The effect of the apple peel extract on protein aggregation was examined using a thioflavin T fluorescence assay, Congo red binding assay, circular dichroism, light scattering, and atomic force microscopy. We found that the phenolic extract from the peel of apples of the cultivar "Fuji", cultivated in Sicily (Caltavuturo, Italy), inhibited ?-casein fib…
Introduction and Technical Survey: Protein Aggregation and Fibrillogenesis
2012
In this chapter we provided the overall background to the subject of protein aggregation and fibrillogenesis in amyloidogenesis, with introduction and brief discussion of the various topics that are included with the coming chapters. The division of the book into basic science and clinical science sections enables correlation of the topics to be made. The many proteins and peptides that have currently been found to undergo fibrillogenesis are tabulated. A broad technical survey is made, to indicate the vast array of techniques currently available to study aspects of protein oligomerization, aggregation and fibrillogenesis. These are split into three groups and tabulated, as the microscopica…
Linear Organo-Soluble Poly(p-benzamide)
2009
Organo-soluble, shape-persistent oligo- and poly(p-benzamide)s were synthesized and characterized. A triethylene glycol (TEG) substituent was introduced to the p-aminobenzoic acid monomer structure as a solubilizing side chain giving 4-amino-2-triethylene glycol benzoic acid. This new monomer was polymerized by the facile polycondensation of the corresponding acid halide derivative of the amine hydrochloric salt. Additionally, a well-defined heptamer was prepared from this monomer on a peptide synthesizer as a model compound. The TEG-substituted oligomers and polymers exhibited good solubility yet high aggregation tendency in common polar and nonpolar organic solvents. The solution self-org…
Argomentare e congetturare : nella scuola primaria e dell'infanzia
2005
Novel Imidazolium Based Catalyst for the Chemical Fixation of Carbon Dioxide
2015
The Self between Vehicle Externalism and the Myth of the Cartesian Theatre
2011
Il saggio esamina il dilemma proposto da Andy Clark secondo il quale o accettiamo gli argomenti di parità per la conclusione che il sé può essere in parte costituito da strutture ambientali, o siamo implicitamente impegnati al Mito del teatro Cartesiano. Si criticano in primo luogo gli argomenti di parità di Clark perché riducono e assimilano le relazioni vigenti tra organismo e strutture ambientali al livello personale - mediate da coscienza e intenzionalità – alle relazioni causali autorganizzanti che mediano il reclutamento e mantenimento delle risorse interne. Si critica quindi la tesi di Clark secondo la quale l’internalismo sarebbe necessariamente impegnato al Mito del Teatro Cartesia…
FERULIC ACID INHIBITS OXIDATE STRESS AND CELL DEATH INDUCED BY Ab OLIGOMERS: IMPROVED DELIVERY BY SOLID LIPID NANOPARTICLES.
2009
Oxidative stress and dysfunctional mitochondria are among the earliest events in AD, triggering neurodegeneration. The use of natural antioxidants could be a neuroprotective strategy for blocking cell death. Here, the antioxidant action of ferulic acid (FA) on different paths leading to degeneration of recombinant beta-amyloid peptide (rAbeta42) treated cells was investigated. Further, to improve its delivery, a novel drug delivery system (DDS) was used. Solid lipid nanoparticles (SLNs), empty or containing ferulic acid (FA-SNL), were developed as DDS. The resulting particles had small colloidal size and highly negative surface charge in water. Using neuroblastoma cells and rAbeta42 oligome…
Paulo Emílio Sales Gomes ou la critique à contre-courant
2016
International audience; Paulo Emilio Sales Gomes, intellectuel, homme de lettres et fondateur de la Cinemateca Brasileira, fait partie des personnalités essentielles de la critique de cinéma internationale. Grand défenseur du cinéma brésilien qu'il contribue à révéler (Cinema Novo), Sales Gomes est un personnage à multiples facettes : militant politique, critique, essayiste, historien et conservateur de la première cinémathèque du Brésil. Auteur de Panorama du cinéma brésilien : 1896/1966 (1970), Humberto Mauro, Cataguases, Cinearte (1974), ainsi que des nouvelles littéraires Três mulheres de 3 pppês (1977), (traduit en français P... comme Polydore ― 1986), il reste essentiellement connu en…
Magnetic Molecular Conductors Based on Bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) and the Tris(chlorocyananilato)ferrate(III) Complex
2019
Electrocrystallization of the bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) organic donor in the presence of the [Fe(ClCNAn)3]3– tris(chlorocyananilato)ferrate(III) paramagnetic anion in different stoichiometric ratios and solvent mixtures afforded two different hybrid systems formulated as [BEDT-TTF]4[Fe(ClCNAn)3]·3H2O (1) and [BEDT-TTF]5[Fe(ClCNAn)3]2·2CH3CN (2) (An = anilato). Compounds 1 and 2 present unusual structures without the typical segregated organic and inorganic layers, where layers of 1 are formed by Λ and Δ enantiomers of the anionic paramagnetic complex together with mixed-valence BEDT-TTF tetramers, while layers of 2 are formed by Λ and Δ enantiomers of the paramagnetic…
2,5-Bis[(E)-2-phenylethenyl]-3,6-bis(pyridin-2-yl)pyrazine
2020
The molecule of the title compound, C30H22N4, exhibits inversion symmetry adopting the shape of a St Andrew's Cross. It shows dihedral angles between adjacent aryl units of around 50° whereas torsion angles of ca 10° are found along the arylene vinylene path.