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  • vesicles
  • The work in this thesis was designed to investigate the effects of HCP on mitochondrial membranes, lipid vesicles, and lipid bilayer membranes and their relation to the above toxic effects. (oregonstate.edu)
  • The method for labeling of inner membrane leaflet in unilamellar giant POPC vesicles was developed and characterised. (ebscohost.com)
  • Recently, several studies demonstrated the ability to generate a large number of membrane vesicles from cultured cells treated with a drug, Cytochalasin B. This cost-effective approach permits the generation of large quantities of extracellular vesicles. (kpfu.ru)
  • To address this, an international team of investigators, led from Kazan Federal University, Russia by Professor Albert Rizvanov , with international collaborators, characterized the biological activity of membrane vesicles. (kpfu.ru)
  • The lead author, Dr. Marina Gomzikova , and colleagues described the morphology, molecular composition, fusion capacity and biological activity of Cytochalasin B-induced membrane vesicles (CIMVs). (kpfu.ru)
  • Cytochalasin B-induced membrane vesicles convey angiogenic activity of parental cells. (kpfu.ru)
  • They cause disruption of both biological membranes and artificial vesicles, particularly to those rich in phosphatidylcholine. (wikipedia.org)
  • 2007) present an integrated model for the uptake and inositolphosphate-induced activation of toxin B. Clostridium difficile infection, caused by the actions of the homologous toxins TcdA and TcdB on colonic epithelial cells is due to binding to target cells which triggers toxin internalization into acidified vesicles, whereupon cryptic segments from within the 1,050-aa translocation domain unfurl and insert into the bounding membrane, creating a transmembrane passageway to the cytosol. (wikipedia.org)
  • Since its basic organization is broadly similar to a liposome, a Transfersome differs from more conventional vesicles primarily by its "softer", more deformable, and better adjustable artificial membrane. (wikipedia.org)
  • silicon carbide
  • An example of a highly porous membrane is the type made of silicon carbide. (wikipedia.org)
  • Other companies outside France include Philips Ceramics Uden[permanent dead link], Atech, Inopor, Jiangsu Jiuwu, MetaWater, Likuid Nanotek, Liqtech, and Mantec Technical Ceramics Ltd (http://www.mantectechnicalceramics.com/products-services/porous-ceramics/filtration/star-sep-membranes/elements) While most of the ceramic membrane manufacturers produce the membranes of carriers and membrane layers of alumina oxide, titanium oxide and zirconia oxide only a few manufacturers work with silicon carbide. (wikipedia.org)
  • Silicon carbide requires higher sintering temperatures (>2000 °C) compared to oxide based membranes (1200-1600 °C). The pioneers in developing and commercializing silicon carbide membranes are the Danish company Liqtech, French company Veolia (CeraMem) and American company Kemco Systems. (wikipedia.org)
  • photosynthetic
  • We discuss the figures of merit for conducting membranes in artificial photosynthetic systems and describe an electronically and ionically conducting polymer composite with attractive performance characteristics. (caltech.edu)
  • ions
  • This is how nonactin is able to transport potassium ions across lipid membranes. (wikipedia.org)
  • Those ions were more damaging to the simulated membrane in lower concentrations than higher (a somewhat counter-intuitive result in itself) because in the latter, they more readily recombine with each other instead of interfering with the membrane. (wikipedia.org)
  • surfaces
  • Early efforts to mimic membrane surfaces in the lab were crude and simplistic, with no control over the number or distribution of sugars. (healthcanal.com)
  • Consequently, researchers frequently use model membranes that are applied to special surfaces. (kit.edu)
  • The L-DPN technique uses a very sharp tip to write lipid membranes onto surfaces in a way similar to what a quill pen does with ink on paper," explains Dr. Michael Hirtz from the INT. This tip has an apex in the range of a few nanometers only and is controlled with a high precision by a machine. (kit.edu)
  • vesicle
  • The simplest form of a membrane, called a liposome or vesicle, will self-assemble when its phospholipid building blocks are placed in water. (healthcanal.com)
  • molecular
  • By modifying a single building block in Gal-8's structure, exactly as nature does in a portion of the population, the researchers dramatically impaired its ability to communicate with the artificial membrane, suggesting a possible molecular basis for the disease. (healthcanal.com)
  • Wykes et al (5) have described the use of a soluble high molecular weight derivative of NAD which can be retained in a continuous flow reactor by an ultrafiltration membrane. (springer.com)
  • Modulation of the molecular arrangement in artificial and biological membranes by phospholipid-shelled microbubbles. (nih.gov)
  • Actual chemical structure of the anaesthetic agent per se is not important, but its molecular volume plays the major role: the more space within membrane is occupied by anaesthetic - the greater is the anaesthetic effect. (wikipedia.org)
  • Electron
  • Transmission electron microscopy of the membrane cross-sections confirmed the formation of channels with hydroxyl groups beneficial for hydrogen-bond forming sites. (edu.sa)
  • cations
  • Polysulfone (PS) Polyethylene (PE) Polytetrafluoroethylene (PTFE) Polypropylene (PP) Polymer membranes may be functionalized into ion exchange membranes by the addition of highly acidic or basic functional groups, e.g. sulfonic acid and quaternary ammonium, enabling the membrane to form water channels and selectively transport cations or anions, respectively. (wikipedia.org)
  • polymers
  • Many polymers are available, but the choice of membrane polymer is not a trivial task. (wikipedia.org)
  • The polymers can form amorphous and semicrystalline structures (can also have different glass transition temperatures), affecting the membrane performance characteristics. (wikipedia.org)
  • Many membrane polymers are grafted, custom-modified, or produced as copolymers to improve their properties. (wikipedia.org)
  • bind
  • By modifying a single amino acid in the protein's structure, as occurs naturally in human populations, they could significantly impair Gal-8's ability to bind to the membrane. (healthcanal.com)
  • polyethylene
  • We further show that polyethylene-glycol, used in many clinical microbubble formulations, also has a major impact on both membrane lipid ordering and the extent of lipid transfer, and that this occurs even in the absence of ultrasound exposure. (nih.gov)
  • stimulate
  • ARNOP: Antiprogesterone, relaxin, nitric oxide donors, oxytocin, prostaglandins "Membrane sweep", also known as membrane stripping, or "stretch and sweep" in Australia and the UK - during an internal examination, the practitioner moves their finger around the cervix to stimulate and/or separate the membranes around the baby from the cervix. (wikipedia.org)