Local grafting heterogeneities control water intrusion and extrusion in nanopores [PDF]
Hydrophobic nanoporous materials can be intruded by water only by exerting an external action, typically increasing pressure. For some materials, water extrudes when the pressure is lowered again. Controlling intrusion/extrusion hysteresis is central in a number of technological applications, including materials for energy applications and for high ...
arxiv +1 more source
A single liquid chromatography procedure to concentrate, separate and collect size-selected polyynes produced by pulsed laser ablation in water [PDF]
Polyynes are linear carbon chains characterized by alternated single and triple bonds and terminated by hydrogen or other terminal substituents. They can be synthesized by pulsed laser ablation in liquid (PLAL) as a scalable, cost-effective, and fast physical technique.
arxiv +1 more source
Acoustic Resonance Effects and Cavitation in SAW Aerosol Generation [PDF]
The interaction of surface acoustic waves (SAWs) with liquids enables the production of aerosols with adjustable droplet sizes in the micrometer range expelled from a very compact source. Understanding the nonlinear acousto-hydrodynamics of SAWs with a regulated micro-scale liquid film is essential for acousto-microfluidics platforms, particularly ...
arxiv +1 more source
Lipophilicity determination of β-hydroxy-β-arilalkanoic acids by reversed phase liquid chromatography under high pressure [PDF]
Lipophilicity parameters (logP) were determined for thirteen synthesized β-hydroxy-β-arilalkanoic acids using reversed phase high performance liquid chromatography.
Savić Jelena+4 more
doaj +1 more source
Preparation and Antioxidant Activities of Phenylethanoids from Dracocephalum heterophyllum
The health benefits of Dracocephalum heterophyllum are widely reported in traditional Tibetan medicines, but the reported chemical composition is limited, probably due to difficulties in separating and purifying compounds.
Yue Lv+6 more
doaj +1 more source
Application of New Supercritical Extraction Technology in Extraction and Separation of Effective Components of Traditional Chinese Medicine [PDF]
Supercritical CO2 extraction technology uses supercritical CO2 fluid as extractant to extract and separate effective components from plants from liquid or solid. At present, CO2 is widely used in supercritical fluid, with a critical temperature of 31.265
Cheng Lijuan
doaj +1 more source
Current developments in LC-MS for pharmaceutical analysis [PDF]
The current developments in liquid chromatography-mass spectrometry (LC-MS) and its applications to the analysis of pharmaceuticals are reviewed. Various mass spectrometric techniques, including electrospray and nanospray ionization, atmospheric pressure
Lim, Chang-Kee, Lord, Gwyn A.
core +1 more source
Glucosinolates are a well-studied and highly diverse class of natural plant compounds. They play important roles in plant resistance, rapeseed oil quality, food flavoring, and human health.
K. Großer, N. V. van Dam
semanticscholar +1 more source
STRUCTURE OF METHYLPHEOPHORBIDE-RCI [PDF]
he methanolic extract of the cyanobacterium (blue-green alga) Spirulina geitleri has been treated with methanolic acid to convert all chlorophyllous pigments to their methylpheophorbides.
Budzikiewicz H.+27 more
core +1 more source
Peptidoglycan encases the bacterial cytoplasmic membrane to protect the cell from lysis due to the turgor. The final steps of peptidoglycan synthesis require a membrane-anchored substrate called lipid II, in which the peptidoglycan subunit is linked to ...
Manuel Pazos+2 more
doaj +1 more source