Results 61 to 70 of about 738,855 (305)

Research Progress of Biodegradable Polyester Polyols Based on Ring-Opening Polymerization of Cyclohexene Carbonate

open access: yesMedžiagotyra, 2020
The polycarbonate polyols(PCD) obtained by ring-opening polymerization of a general cyclic monomer is mostly a linear flexible structure, which is used as a raw material to synthesize polyurethanes, and it is difficult to simultaneously ensure good ...
Xuemei WANG   +4 more
doaj   +1 more source

Dual Versatility of Triazolium-Based Cyclic Carbonate Inimer: From Homopolymerization to On-Demand Thermally Activated Initiating Site

open access: yes, 2016
Dual Versatility of Triazolium-Based Cyclic Carbonate Inimer: From Homopolymerization to On-Demand Thermally Activated Initiating ...
Sébastien Moins (1853353)   +2 more
core   +1 more source

Preparation, physical-chemical characterisation and cytocompatibility of calcium carbonate cements [PDF]

open access: yes, 2006
The feasibility of calcium carbonate cements involving the recrystallisation of metastable calcium carbonate varieties has been demonstrated. Calcium carbonate cement compositions presented in this paper can be prepared straightforwardly by simply mixing
Bareille, Reine   +3 more
core   +1 more source

Dose‐dependent hepatotoxicity of hydrogen peroxide in HepG2 cells and its modulation by CYP450 induction

open access: yesFEBS Open Bio, EarlyView.
NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks   +4 more
wiley   +1 more source

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

open access: yesFEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty   +13 more
wiley   +1 more source

The skeletal carbonate contribution to mixed terrigenous-carbonate sediments on the temperate northeastern Northland continental shelf, New Zealand [PDF]

open access: yes, 2012
The northeastern Northland continental shelf (NNCS) includes the coastal, shelf and uppermost slope seafloor out to depths of 210 m and over a distance of 150 km between North Cape and Ngurauru Bay slightly north of Whangarei. The nature of the surficial
Rogers, Danielle Claire
core  

The first example of natural cyclic carbonate in terpenoids

open access: yes, 2006
The first natural occurring cyclic carbonate terpenoid, the guaianolide hololeucin (1), was isolated from the aerial part of Centaurea hololeuca. Its structure was elucidated on the basis of extensive proton, C-13 and two-dimensional NMR experiments, as ...
BRUNO, Maurizio   +3 more
core   +1 more source

Avidin is evolutionarily conserved in fish but dispensable for development and resistance against Streptococcus agalactiae in zebrafish

open access: yesFEBS Open Bio, EarlyView.
The presence of biotin‐binding avidin proteins in fish and their biological significance are poorly characterized. We cataloged fish avidins and demonstrate that they are widely present and evolutionarily conserved. We created avd knockout zebrafish and show that zebavidin is dispensable for development and that resistance of avd knockout embryos in ...
Anni K. Saralahti   +5 more
wiley   +1 more source

Synthesis and characterization of lignin-carbonate prepolymers as formaldehyde-free wood adhesives

open access: yesIndustrial Crops and Products
As most conventional wood adhesives are still based on petrochemicals and harmful formaldehyde, there is an increasing demand for the development of sustainable alternatives.
Nils Ortner   +6 more
doaj   +1 more source

Propylene carbonate synthesis from propylene oxide and CO2 over Ga-Silicate-1 catalyst

open access: yesGreen Processing and Synthesis, 2020
Gallosilicate zeolite (Ga-Silicate-1) was synthesized and characterized by wet chemical analysis, Fourier transform infrared spectroscopy, X-ray diffraction, BET surface area analysis and 29Si MAS NMR.
Aouissi Ahmed   +3 more
doaj   +1 more source

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