Results 51 to 60 of about 6,358 (315)

Precise cooperative sulfur placement leads to semi-crystallinity and selective depolymerisability in CS2/oxetane copolymers

Nature Communications, 2023
CS2 promises easy access to degradable sulfur-rich polymers and insights into how main-group derivatisation affects polymer formation and properties, though its ring-opening copolymerisation is plagued by low linkage selectivity and small-molecule by ...
Christoph Fornacon-Wood, Bhargav R. Manjunatha, Merlin R. Stühler, Cesare Gallizioli, Carsten Müller, Patrick Pröhm, Alex J. Plajer   +6 more
doaj   +1 more source

λ-Carrageenan Oligosaccharides of Distinct Anti-Heparanase and Anticoagulant Activities Inhibit MDA-MB-231 Breast Cancer Cell Migration

Marine Drugs, 2019
In tumor development, the degradation of heparan sulfate (HS) by heparanase (HPSE) is associated with cell-surface and extracellular matrix remodeling as well as the release of HS-bound signaling molecules, allowing cancer cell migration, invasion and ...
Hugo Groult, Rémi Cousin, Caroline Chot-Plassot, Maheva Maura, Nicolas Bridiau, Jean-Marie Piot, Thierry Maugard, Ingrid Fruitier-Arnaudin   +7 more
doaj   +1 more source

Depolymerisation of organosolv lignin by supported Pt metal catalysts

Catalysis Communications, 2022
The conversion of lignocellulosic biomass into value-added chemicals and biofuels has been attracting the attention of researchers in recent years. Lignin is an abundant, natural polymer and a major component of lignocellulose comprising an aromatic ...
Raphaela Süss, Gottfried Aufischer, Lukas Zeilerbauer, Birgit Kamm, Gisa Meissner, Hendrik Spod, Christian Paulik   +6 more
doaj   +1 more source

Differential dysregulation of granule subsets in WASH-deficient neutrophil leukocytes resulting in inflammation

Nature Communications, 2022
Responsive exocytosis in neutrophil leukocytes involves actin depolymerisation-dependent sequential release of gelatinase granules, then strongly pro-inflammatory azurophilic granules.
Jennifer L. Johnson, Elsa Meneses-Salas, Mahalakshmi Ramadass, Jlenia Monfregola, Farhana Rahman, Raquel Carvalho Gontijo, William B. Kiosses, Kersi Pestonjamasp, Dale Allen, Jinzhong Zhang, Douglas G. Osborne, Yanfang Peipei Zhu, Nathan Wineinger, Kasra Askari, Danni Chen, Juan Yu, Scott C. Henderson, Catherine C. Hedrick, Matilde Valeria Ursini, Sergio Grinstein, Daniel D. Billadeau, Sergio D. Catz   +21 more
doaj   +1 more source

Upcycling of BPA-PC into trimethylene carbonate by solvent assisted organocatalysed depolymerisation

, 2023
In this study, a solvent assisted organocatalysed method for the depolymerisation of bisphenol A-based polycarbonate (BPA-PC) at low temperature is described.
De Meester, Steven, Jehanno, Coralie, Sardon, Haritz, Luna Barrios, Emelin Yhoany, Olazabal, Ion   +4 more
core   +1 more source

Holzforschung / Depolymerisation of kraft lignin to obtain high value-added products : antioxidants and UV absorbers

, 2022
This study demonstrates that bio-based products of lignin depolymerisation can potentially replace common antioxidants and UV absorbers in the plastics and cosmetics industries.
Süss, Raphaela, Kamm, Birgit, Paulik, Christian, Aufischer, Gottfried   +3 more
core   +1 more source

Structural and biophysical characterization of the multidomain xylanase Xyl.

PLoS ONE, 2022
The depletion of fossil fuels, associated pollution, and resulting health hazards are of concern worldwide. Woody biomass constitutes an alternative source of cleaner and renewable energy.
Valentine Anye, Robert F Kruger, Wolf-Dieter Schubert   +2 more
doaj   +3 more sources

INFLUENCE OF REACTION CONDITIONS ON LIGNIN HYDROTHERMAL TREATMENT

Frontiers in Energy Research, 2014
Organosolv lignin, obtained from olive tree pruning under optimised conditions, was subjected to a hydrothermal depolymerisation process catalysed by sodium hydroxide.
Xabier eErdocia, Raquel ePrado, M. Ángeles eCorcuera, Jalel eLabidi   +3 more
doaj   +1 more source

Pyrolysis Oils from Used Tires and Plastic Waste: A Comparison of a Co-Processing with Atmospheric Gas Oil

Energies, 2022
This study aimed to determine the effect of the supplied pyrolysis oils (oils obtained from the pyrolysis of used tyres and the depolymerisation of plastics) on the activity of the hydrodesulphurisation catalyst.
Martin Pšenička, Anna Roudová, Aleš Vráblík, Radek Černý   +3 more
doaj   +1 more source

Thermal degradation of citrus pectin in low-moisture environment – Investigation of backbone depolymerisation [PDF]

, 2021
Thermal degradation of modified pectin samples with varying molecular structure during storage was recently studied at 60 °C and 80% relative humidity (rh) for 28 days.
Drusch, Stephan, Kastner, Hanna, Fatouros, Alexandra, Krähmer, Andrea, Kroh, Lothar W., Einhorn-Stoll, Ulrike   +5 more
core   +1 more source