Results 1 to 10 of about 93,640 (301)

Sulfonated Polyimide Membranes Derived from a Novel Sulfonated Diamine with Pendant Benzenesulfonic Acid for Fuel Cells

Energies, 2021
For improving the hydrolytic stability of sulfonated polyimides consisting of five membered anhydrides, novel sulfonated polyimides (NSPIs) were prepared via polymerization of 3,3′,4,4′-benzophenonetetracarboxylic dianhydride (BTDA), with a novel diamine
Khurram Liaqat, Srosh Fazil, Wajid Rehman, Shaukat Saeed, Farid Menaa, Syed Asim Hussain Shah, Muhammad Nawaz, Walaa Naji Alharbi, Bouzid Menaa, Muhammad Farooq   +9 more
doaj   +1 more source

A minimalist chemical model of matrix metalloproteinases- Can small peptides mimic the more rigid metal binding sites of proteins? [PDF]

, 2013
In order to develop a minimalist chemical model of matrix metalloproteinases (MMPs), we synthesized a pentadecapeptide (Ac-KAHEFGHSLGLDHSK-NH2) corresponding to the catalytic zinc(II) binding site of human MMP-13.
Aguilar, Attila Jancsó, Beck, Burns, Camerman, Daignault, Dávid Árus, Farkas, Farkas, Gajda, Grossoehme, Harford, Heitzer, Högfeldt, Jancsó, Jancsó, Kaiser, Khairy, Kimura, Koike, Kolozsi, Kállay, Massova, Millhauser, Mylonas, Mylonas, Nóra Veronika Nagy, Paksi, Rabenstein, Rajkovic, Rockenbauer, Rosotti, Róbert Berkecz, Stanczak, Sternlicht, Sóvágó, Tallant, Tamás Gajda, Valensin, Valensin, Valensin, Verma, Witkowska, Zastrow, Zoroddu, Zékány, Ágnes Dancs, Árus, Ősz   +48 more
core   +1 more source

Medium-Temperature Phosphate Glass Composite Material as a Matrix for the Immobilization of High-Level Waste Containing Volatile Radionuclides

Energies, 2022
The search for matrices and technological solutions for the reliable immobilization of volatile radionuclides and high-level waste (HLW) components is an actual radiochemical problem.
Anna V. Frolova, Sergey E. Vinokurov, Irina N. Gromyak, Sergey S. Danilov   +3 more
doaj   +1 more source

A new kinetic model for predicting polyamide 6-6 hydrolysis and its mechanical embrittlement [PDF]

, 2012
PA 6-6 hydrolysis at 60, 70, 80 and 90 °C in distilled water has been studied by Fourier transform infrared spectroscopy, viscometry in molten state, differential scanning calorimetry and uniaxial tensile testing.
COLIN, Xavier, CORREC, Olivier, EL MAZRY, Chaker   +2 more
core   +6 more sources

Long‐term hydrolytic stability of CAD/CAM composite blocks

European Journal of Oral Sciences, 2021
AbstractThis study aimed to assess water sorption and solubility of CAD/CAM composite blocks compared to CAD/CAM ceramic after 8 months storage in water and artificial saliva. Eight CAD/CAM blocks were investigated: Five resin‐composite blocks (RCBs), one polymer‐infiltrated ceramic network (PICN) block, one ceramic‐filled polyetheretherketone (PEEK ...
Rasha A. Alamoush, Nesreen A. Salim, Nick Silikas, Julian D. Satterthwaite   +3 more
openaire   +5 more sources

Inhibition of an extracellular polygalacturonase from Geotrichum candidum by a proteinaceous inhibitor isolated from lemon fruits [PDF]

, 2017
An extracellular polygalacturonase [EC 3.2.1.15], named PG-543, was purified from the culture of Geotrichum candidum IEV 543, a phytopathogenic fungi isolated from infected lemon.
Isla, Maria Ines, Ordóñez, Roxana Mabel, Rodriguez, Ivana Fabiola, Sayago, Jorge Esteban, Torres, Sebastián, Zampini, Iris Catiana   +5 more
core   +1 more source

Comparison of Zinc-Containing and Zinc-Free Hydraulic Packages Using Severe Laboratory Performance Tests

Tribology Online, 2010
Ever increasing demands on productivity, performance, worker's safety, as well as realization of total cost management lead to new and higher requirements placed on industrial lubricants. Higher machining speeds and new processes may cause much more
Thomas Rühle, Thomas Rossrucker, Georg Hering, Steffen Sandhöfner, Michael König   +4 more
doaj   +1 more source

One-pot domino synthesis of polyvicinalamine monomers [PDF]

, 2011
On a genere de l'imidazole par une reaction de type domino in situ entre le glyoxal, le formaldehyde et deux unites d'ammoniac aqueux. L'addition de bicarbonate aqueux et d'un anhydride carboxylique ou d'un dicarbonate de dialkyle conduit a la formation ...
Kılıç, Cem Burak, Taralp, Alpay
core   +4 more sources

Hydrolytic Stability of Sengon-Oriented Strand Board Bonded with Hybrid Phenol-Formaldehyde/Polymeric Methylene Diphenyl Diisocyanate Adhesives

Jurnal Sylva Lestari
The hydrolytic stability of oriented strand board (OSB) is critical to guarantee good performance in humid conditions over the long term. The adhesive system impacts hydrolytic stability in addition to the wood strands. This study aims to investigate the
Rita Kartika Sari, Fadilah Fitrianum, Muhammad Iqbal Maulana, Wahyu Hidayat, Ina Winarni, Apri Heri Iswanto, Muhammad Adly Rahandi Lubis   +6 more
doaj   +1 more source

Polyoxometalate multi-electron-transfer catalytic systems for water splitting [PDF]

, 2014
The viable production of solar fuels requires a visible-light-absorbing unit, a H2O (or CO2) reduction catalyst (WRC), and a water oxidation catalyst (WOC) that work in tandem to split water or reduce CO2 with H2O rapidly, selectively, and for long ...
Fielden, John, Geletii, Yurii V., Hill, Craig L., Lv, Hongjin, Sumliner, Jordan M.   +4 more
core   +1 more source