Results 31 to 40 of about 2,186,410 (361)

Solvent Supercritical Fluid Technologies to Extract Bioactive Compounds from Natural Sources: A Review

open access: yesMolecules, 2017
Supercritical fluid technologies offer a propitious method for drug discovery from natural sources. Such methods require relatively short processing times, produce extracts with little or no organic co-solvent, and are able to extract bioactive molecules
K. Khaw, M. Parat, P. Shaw, J. Falconer
semanticscholar   +1 more source

Highly crystalline graphite-like carbon from wood via low-temperature catalytic graphitization

open access: yesCarbon Trends, 2022
In this study, we investigated the synthesis of wood-sawdust-derived high-crystalline graphite-like carbon. The sawdust was first impregnated with Fe and semi-carbonized by a hydrothermal treatment (HT) at 250°C, followed by the second carbonization ...
Yuta Nakayasu   +4 more
doaj  

Supercritical fluid technology for solubilization of poorly water soluble drugs via micro- and naonosized particle generation

open access: yesADMET and DMPK, 2020
Approximately two-third of the compounds in the pharmaceutical industry were developed through combinatorial chemistry and high throughput screening of particulate solids.
Shashi Kiran Misra, Kamla Pathak
doaj   +1 more source

Supercritical Fluid Extraction [PDF]

open access: yes, 2014
Peer ...
Mendiola, J. A.   +3 more
openaire   +3 more sources

Modeling Heat Capacity of Supercritical Fluids: A Phonon Theory Approach [PDF]

open access: yesarXiv, 2023
Recent research shows that liquids and dense supercritical fluids support high frequency shear waves. Here, we proposed a general heat capacity model of supercritical fluids using the latest theoretical findings (the liquid phonon theory). In this theory, heat capacity cv of supercritical fluids is only related to the infinite-frequency shear modulus ...
arxiv  

Lipid metabolism in pancreatic cancer: emerging roles and potential targets

open access: yesCancer Communications, Volume 42, Issue 12, Page 1234-1256, December 2022., 2022
Abstract Pancreatic cancer is one of the most serious health issues in developed and developing countries, with a 5‐year overall survival rate currently <9%. Patients typically present with advanced disease due to vague symptoms or lack of screening for early cancer detection.
Xinpeng Yin   +6 more
wiley   +1 more source

Supercritical Fluid‐Facilitated Exfoliation and Processing of 2D Materials

open access: yesAdvancement of science, 2019
Since the first intercalation of layered silicates by using supercritical CO2 as a processing medium, considerable efforts have been dedicated to intercalating and exfoliating layered two‐dimensional (2D) materials in various supercritical fluids (SCFs ...
Zhenyu Sun   +5 more
semanticscholar   +1 more source

Chemical Recycling for Plastic Waste: Status and Perspectives 

open access: yesChemBioEng Reviews, Volume 9, Issue 6, Page 541-555, December 2022., 2022
The already well‐established industrial‐scale mechanical recycling of plastics has technical and economic limits. New goods for all areas of plastics application can be generated by chemical recycling processes. This review focuses on pyrolysis and solvolysis processes. The procedures and their most important features are described.
Arkadi Maisels   +2 more
wiley   +1 more source

A corresponding-state framework for the structural transition of supercritical fluids across the Widom delta [PDF]

open access: yesJ. Chem. Phys. 150, 154503 (2019), 2018
This work proposes a classification algorithm based on the radical Voronoi tessellation to define the Widom delta, supercritical gas-liquid coexistence region, of polyatomic molecules. In specific, we use a weighted mean-field classification method to classify a molecule into either gas-like or liquid-like.
arxiv   +1 more source

Energy Savings through Adaptive Upstream Throttling and Supply Shut‐Off on Downstream Throttled Drives

open access: yesChemical Engineering &Technology, Volume 46, Issue 1, Page 137-146, January 2023., 2023
Pneumatic drives are widely used for their robustness and simple commissioning but tend to have a high energy demand. A simple to implement energy‐saving speed controller is presented. A design method for the controller is proposed and analyzed by a lumped parameter model. The results suggest this approach as a promising strategy to economically reduce
Christian Reese Jimenez   +2 more
wiley   +1 more source

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