Results 61 to 70 of about 96,589 (331)

Nonlinear dielectric response at the excess wing of glass-forming liquids

, 2013
We present nonlinear dielectric measurements of glass-forming glycerol and propylene carbonate applying electrical fields up to 671 kV/cm. The measurements extend to sufficiently high frequencies to allow for the investigation of the nonlinear behavior ...
A. Loidl, A. Piekara, P. Lunkenheimer, S. Kastner, Th. Bauer   +4 more
core   +1 more source

From ether to acid: a plausible degradation pathway of glycerol dialkyl glycerol tetraethers [PDF]

, 2016
Glycerol dialkyl glycerol tetraethers (GDGTs) are ubiquitous microbial lipids with extensive demonstrated and potential roles as paleoenvironmental proxies.
Baugh, Baugh, Becker, Birgel, Birgel, Birgel, Birgel, Brocks, Chappe, Chuanlun Zhang, Clari, Clari, Daniel Birgel, Elling, Felix J. Elling, Feng, Gutierrez, Harvey, Huguet, Inagaki, Innes, Jansen, Julius S. Lipp, Jörn Peckmann, Kai-Uwe Hinrichs, Knappy, Knappy, Kuypers, Könneke, Lengger, Lipp, Liu, Liu, Liu, Lunau, Lutnaes, Lutnaes, Mackenzie, Martens-Habbena, Martin Könneke, Meador, Meador, Meunier-Christman, Moldowan, Morii, Paul A. Sutton, Pearson, Pearson, Pease, Peckmann, Peters, Roger E. Summons, Rong Zhu, Rontani, Rowland, Saito, Sandy, Schouten, Schouten, Schouten, Schouten, Schouten, Steven J. Rowland, Stickland, Sturt, Sutton, Sutton, Teske, Thiel, Weijers, Wuchter, Xiao-Lei Liu, Xie, Yang, Yoshinaga, Zhu, Zhu   +76 more
core   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Glycerol Carbonate Solventless Synthesis Using Ethylene Carbonate, Glycerol and a Tunisian Smectite Clay: Activity, Stability and Kinetic Studies

Applied Sciences, 2023
Biodiesel is nowadays added in 5–10% v/v to diesel, and its production involves the parallel creation of a vast glycerol amount as a by-product. Despite its many applications, there is a surplus of glycerol (Gly) that has boosted the search for new ...
Yosra Snoussi, Itziar A. Escanciano, Mariana Alvarez Serafini, Neji Besbes, Juan M. Bolivar, Miguel Ladero   +5 more
doaj   +1 more source

The excess wing in the dielectric loss of glass-forming ethanol: A relaxation process

, 2000
A detailed dielectric investigation of liquid, supercooled liquid, and glassy ethanol reveals a third relaxation process, in addition to the two processes already known.
Brand, R., Loidl, A., Lunkenheimer, P., Schneider, U.   +3 more
core   +1 more source

Hydrogen production by sorption-enhanced steam reforming of glycerol [PDF]

, 2009
Catalytic steam reforming of glycerol for H(2) production has been evaluated experimentally in a continuous flow fixed-bed reactor. The experiments were carried out under atmospheric pressure within a temperature range of 400-700 degrees C.
Blakeman, N, Chen, H, Ding, Y, Dou, B, Dupont, V, Ghadiri, M, Rickett, G, Williams, PT   +7 more
core   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

A new interpretation of dielectric data in molecular glass formers [PDF]

, 2006
Literature dielectric data of glycerol, propylene carbonate and ortho-terphenyl (OTP) show that the measured dielectric relaxation is a decade faster than the Debye expectation, but still a decade slower than the breakdown of the shear modulus.
Buchenau, U., Ohl, M., Wischnewski, A.
core   +3 more sources

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Glycerol Carbonate from Dimethyl Carbonate and Glycerol Over TBD‐Functionalized SBA‐16

ChemCatChem
Abstract The transesterification reaction of glycerol with dimethyl carbonate (DMC) into glycerol carbonate presents an attractive route for simultaneous biodiesel by‐product valorization and indirect CO 2 utilization.
Amirreza Faraj‐Nezhadi, Chi‐Cong Tran, François Béland, Serge Kaliaguine   +3 more
openaire   +1 more source