Results 231 to 240 of about 383,517 (291)

Multimodal Imaging of Hypoxia, Metabolism and pH in Feline Sarcoma Using Hyperpolarized 13C MRI and PET

Advanced Science, EarlyView.
This work presents a clinically deployable simultaneous PET/MRI workflow which integrates hyperpolarized 13C imaging of metabolism and extracellular pH with [18F]FMISO PET to characterize hypoxia, acidosis, and metabolic reprogramming in feline sarcoma.
Martin Grashei, Tanja Groll, Stephanie Kahl, Silke Baer, Elisabeth Bliemsrieder, Frits H. A. van Heijster, Andre Wendlinger, Pascal Wodtke, Jorge Cabello, Susan Notohamiprodjo, Christian Lohrmann, Markus Schwaiger, Wolfgang A. Weber, Katja Steiger, Andrea Meyer‐Lindenberg, Johannes Hirschberger, Christine Baumgartner, Franz Schilling   +17 more
wiley   +1 more source

ROS/pH‐Responsive Phenylboronic Acid–Chitosan Nanoparticles Improve Silymarin‐Mediated Hepatoprotection After Hepatectomy With Gut‐Liver Axis‐Associated Responses

Advanced Science, EarlyView.
Bioactive phenylboronic acid–chitosan nanoparticles enable responsive silymarin delivery for post‐hepatectomy liver protection. The nanoplatform integrates antioxidant and antibacterial functions, improves hepatic recovery, and is associated with coordinated shifts in gut microbiota, metabolites, cytokines, and hepatic proteomic pathways, suggesting a ...
Jinjin Tong, Chaochao Luo, Zezheng Liu, Xinyan Zhang, Daixu Jia, Yang Sun, Zhaonan Zhang, Haoran Shi, Jianfang Wang, Hua Zhang   +9 more
wiley   +1 more source

Solvent‐Free Synthesis of Ultrabright Carbon Dots With Near‐Unity Quantum Yield for High‐Performance Light‐Emitting Diodes

Advanced Science, EarlyView.
A rational, solvent‐free synthesis utilizing 2,6‐diaminonaphthalene produces ultrabright green‐emissive carbon dots. Regulated by a self‐limiting oxidative capping mechanism, excitons undergo ultrafast intra‐particle funneling from the nitrogen‐doped carbon core to emissive surface traps.
Hyeonjin Park, Su Hwan Lee, Sejeong Seo, Soye Park, Soo min Ji, Hyunda Jo, Sehyeon Park, Young‐Hoon Kim, Woosung Kwon   +8 more
wiley   +1 more source

Optimization of supercritical dimethyl carbonate method for biodiesel production [PDF]

Fuel, 2012
Biodiesel could be produced from triglycerides and dimethyl carbonate, instead of the conventional methanol, in this non-catalytic supercritical dimethyl carbonate method.
Zul Ilham, Shiro Saka
exaly   +2 more sources

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The Chemistry of Dimethyl Carbonate

Accounts of Chemical Research, 2002
Dimethyl carbonate (DMC) is a versatile compound that represents an attractive eco-friendly alternative to both methyl halides (or dimethyl sulfate) and phosgene for methylation and carbonylation processes, respectively. In fact, the reactivity of DMC is tunable: at T = 90 degrees C, methoxycarbonylations take place, whereas at higher reaction ...
TUNDO, Pietro, SELVA, Maurizio
openaire   +3 more sources

Photolysis of dimethyl carbonate

Transactions of the Faraday Society, 1966
The gas-phase photolysis of dimethyl carbonate (DMC) has been studied in the temperature range 41–93°C. Methoxyl and methyl radicals are generated in this photolysis and their reactions have been studied. Arrhenius parameters have been measured for the following reactions: [graphic omitted] A value of 1014.13(mole–1 cm3 sec–1) at 41°C has been ...
M. J. Yee Quee, J. C. J. Thynne
openaire   +1 more source

Thermodynamic Properties of Dimethyl Carbonate

Journal of Physical and Chemical Reference Data, 2011
A thermodynamic property formulation for dimethyl carbonate has been developed with the use of available experimental thermodynamic property data. The equation of state was developed with multiproperty fitting methods involving pressure-density-temperature (pρT), heat capacity, vapor pressure, and saturated-liquid density data.
Yong Zhou, Jiangtao Wu, Eric W. Lemmon
openaire   +1 more source

Review on the synthesis of dimethyl carbonate

Catalysis Today, 2018
Abstract Dimethyl carbonate (DMC, (CH3O)2CO), as an important and environmentally friendly chemical intermediate, has been widely used in industrial fields. Several large-scale industrial routes of DMC production, e.g., phosgene route, transesterification route, and the liquid-phase oxidative carbonylation of methanol, have been developed to date ...
Hong-Zi Tan, Zhi-Qiao Wang, Zhong-Ning Xu, Jing Sun, Yu-Ping Xu, Qing-Song Chen, Yumin Chen, Guo-Cong Guo   +7 more
openaire   +1 more source

Dimethyl carbonate as a green chemical

Current Opinion in Green and Sustainable Chemistry, 2017
Dimethyl carbonate (DMC) is an established solvent and a green reagent which continues to attract attention. It is a nonpolar aprotic solvent with good miscibility with water, biodegrades readily in the atmosphere, and is non-toxic. DMC is classified in the greenest “recommended” bracket according to the solvent selection guide, and can be a potential ...
Sang-Hyun Pyo, Ji Hoon Park, Tae-Sun Chang, Rajni Hatti-Kaul   +3 more
openaire   +1 more source

On the conformational behavior of dimethyl carbonate

Physical Chemistry Chemical Physics, 1999
Infrared (4000–50 cm-1) spectra of the vapor, the amorphous and crystalline solid phase, and Raman spectra (4000–50 cm-1) of the vapor, liquid and crystalline solid phases of dimethyl carbonate have been recorded, and assignments are proposed. MP2 and DFT abinitio calculations were carried out using a 6-31G** basis set.
Bohets, H., van der Veken, B.J.
openaire   +5 more sources