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Keyword:'281042'
Showing 1-30 of 47 results for "

281042

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Frédéric Gaboyer et al.
Research in microbiology, 165(7), 490-500 (2014-08-03)
A novel halophilic bacterium, strain RHS90(T), was isolated from marine sediments from the Gulf of Lions, in the Mediterranean Sea. Its metabolic and physiological characteristics were examined under various cultural conditions, including exposure to stressful ones (oligotrophy, high pressure and
Synthetic Communications, 26, 1861-1861 (1996)
Perfluorohexane-encapsulated mesoporous silica nanocapsules as enhancement agents for highly efficient high intensity focused ultrasound (HIFU).
Xia Wang et al.
Advanced materials (Deerfield Beach, Fla.), 24(6), 785-791 (2012-01-10)
Liselotte M Kornmann et al.
Molecular imaging and biology : MIB : the official publication of the Academy of Molecular Imaging, 10(5), 264-270 (2008-06-10)
We investigated in vitro the potential of macrophages to act as targeted vehicle for ultrasound molecular imaging. Murine bone marrow-derived macrophages (BMM), incubated for 3 h with different concentrations of perfluorohexane (PFH) emulsions, were monitored by microscopy, flow cytometry, and
L-M L Toms et al.
Environment international, 71, 74-80 (2014-07-02)
Some perfluoroalkyl and polyfluoroalkyl substances (PFASs) have become widespread pollutants detected in human and wildlife samples worldwide. The main objective of this study was to assess temporal trends of PFAS concentrations in human blood in Australia over the last decade
Jörg U Bleyl et al.
Pulmonary pharmacology & therapeutics, 23(5), 450-455 (2010-04-07)
We investigated the effects of vaporized perfluorohexane (PFH) on pulmonary vascular tone, pulmonary vascular resistance and peak inspiratory pressure as well as lipid mediator formation in the treatment of calcium ionophore induced lung injury in a model of the isolated
Zohra Mana et al.
International journal of pharmaceutics, 338(1-2), 231-237 (2007-03-21)
Commonly, the microencapsulation of a lipophilic drug in a polymeric matrix via an ordinary oil/oil emulsification allows entrapping limited drug amounts due to its loss into the external phase. In this present paper, a new microencapsultion method describes the use
Amanda L Martin et al.
Ultrasound in medicine & biology, 38(10), 1799-1810 (2012-08-28)
Perfluorocarbon (PFC) nanodroplets (NDs) have been proposed as phase-change contrast agents for ultrasound imaging. Since the ultrasound energy required to convert PFC droplets to microbubbles is inversely related to size, the conversion of PFC NDs at clinically-relevant pressures is challenging.
Sheng Song et al.
Acta biomaterialia, 24, 266-278 (2015-06-27)
In this work, superparamagnetic self-assembled microbubbles (SAMBs) consisting of "Poly(acrylic acid)-Iron oxide nanoparticles-Polyamine" sandwich-like shells and tetradecafluorohexane cores were fabricated by a template-free self-assembly approach. The SAMBs exhibit not only magnetic resonance (MR) T2 imaging functionality, but also ultrasound (US)
T Hölscher et al.
AJNR. American journal of neuroradiology, 28(4), 635-639 (2007-04-10)
To test a new contrast-specific sonography imaging method that offers visualization of the intracranial vasculature in a manner similar to that seen on angiography. Thirty patients (35 sonography studies total) were included in the study after they provided written informed
Xia Wang et al.
Biomaterials, 34(8), 2057-2068 (2012-12-19)
Au nanoparticles-coated, perfluorohexane-encapsulated and PEGylated mesoporous silica nanocapsule-based enhancement agents (MSNC@Au-PFH-PEG, abb. as MAPP) have been synthesized, for the ultrasound-induced cytoclasis, contrast-intensified ultrasound (US) imaging and US-guided high intensity focused ultrasound (HIFU) surgical therapy. Both the US-induced thermal effect and
James R Lattin et al.
Journal of drug targeting, 23(5), 469-479 (2015-02-13)
Vaporizing emulsion droplets may aid in endosomal rupture as a drug delivery route to the cytosol. Upon insonation, emulsion droplets formed from perfluorocarbon liquids may vaporize with sufficient expansion to disrupt liposomal or endosomal membranes. Emulsion droplets of perfluorohexane (PFC6)
Reaction of hexafluorobenzene and tetradecafluorohexane with lithium amalgam.
Kavan L and Dousek FP.
Journal of Fluorine Chemistry, 41(3), 383-391 (1988)
Sara Persson et al.
Environment international, 59, 425-430 (2013-08-10)
This study investigates the influence of biological and environmental factors on the concentrations of perfluoroalkyl acids (PFAAs) in a top predator; the American mink. Perfluorobutane sulfonate (PFBS), perfluorohexane sulfonate (PFHxS), perfluorooctane sulfonate (PFOS) and perfluoroalkyl carboxylates (PFCAs) with C8-C13 perfluorinated
James R Lattin et al.
Journal of pharmaceutical sciences, 104(4), 1373-1384 (2015-02-03)
Liposomes containing emulsion droplets (eLiposomes) were studied as ultrasound-responsive liposomal drug carriers. This paper presents the effects of temperature, eLiposome size, and ultrasound parameters on the ultrasonically actuated release of calcein, to test hypotheses concerning the physics of acoustic droplet
Dirk Haufe et al.
Artificial cells, blood substitutes, and immobilization biotechnology, 39(4), 239-246 (2011-01-26)
The intraperitoneal instillation of perfluorocarbons augmented systemic oxygenation and was protective in mesenteric ischemia-reperfusion and experimental lung injury. To study biocompatibility and potential anti-inflammatory effects of intraperitoneal perfluorocarbons, we evaluated the influence of perfluorohexane and/or inflammatory stimuli on human mesothelial
Koichi Kitaguchi et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 30(6), 687-690 (2014-06-13)
A fluorocarbon and hydrocarbon organic solvent mixture is known as a temperature-induced phase-separation solution. When a mixed solution of tetradecafluorohexane as a fluorocarbon organic solvent and hexane as a hydrocarbon organic solvent (e.g., 71:29 volume ratio) was delivered in a
Ming-Wei Chang et al.
Langmuir : the ACS journal of surfaces and colloids, 26(7), 5115-5121 (2010-01-26)
The feasibility of producing a hollow microsphere with a single hole in its shell by coaxial electrohydrodynamic atomization (CEHDA) is demonstrated. Polymethylsilsesquioxane (PMSQ) was used as a model shell material encapsulating a core of a volatile liquid, perfluorohexane (PFH), which
Davide R Ceratti et al.
Advanced materials (Deerfield Beach, Fla.), 27(34), 4958-4962 (2015-07-23)
A new, simple bi-phasic dip-coating method is developed. This method is considered as a great improvement of the technique for research, development and production, since expensive, rare, harmful, or time-evolving solutions can now be easily deposited on large surfaces and
Charlotta Rylander et al.
Journal of environmental monitoring : JEM, 11(11), 2002-2008 (2009-11-06)
The associations between age, body mass index (BMI), parity, place of residence (coastal or inland) and plasma concentrations of perfluorinated compounds (PFCs) were assessed in a study population from south central Vietnam. The study group consisted of 91 delivering women
Lisbeth Stigaard Kjeldsen et al.
Environmental science and pollution research international, 20(11), 8031-8044 (2013-06-15)
Perfluorinated compounds (PFCs) are a large group of chemicals used in different industrial and commercial applications. Studies have suggested the potential of some PFCs to disrupt endocrine homeostasis, increasing the risk of adverse health effects. This study aimed to elucidate
Ming-Wei Chang et al.
Journal of the Royal Society, Interface, 7 Suppl 4, S451-S460 (2010-06-04)
In this study, the ability to control the shell thickness of hollow polymeric microspheres prepared using electrohydrodynamic processing at ambient temperature was investigated. Polymethylsilsesquioxane (PMSQ) was used as a model material for the microsphere shell encapsulating a core of liquid
Jörg U Bleyl et al.
Experimental lung research, 36(6), 342-351 (2010-07-27)
The authors investigated the protective effects and dose dependency of perfluorohexane (PFH) vapor on leukocyte-mediated lung injury in isolated, perfused, and ventilated rabbit lungs. Lungs received either 18 vol.% (n = 7), 9 vol.% (n = 7), or 4.5 vol.%
L Mousnier et al.
International journal of pharmaceutics, 471(1-2), 10-17 (2014-05-20)
Ultrasound contrast agents (UCAs) composed of a liquid perfluorocarbon (PFC) core surrounded by a polymer shell have shown promising echogenicity as well as stability. In a strategy to optimize the ultrasound properties of these systems, encapsulating a liquid PFC with
Ondine S von Ehrenstein et al.
Reproductive toxicology (Elmsford, N.Y.), 27(3-4), 239-245 (2009-05-12)
Polyfluoroalkyl chemicals (PFCs) comprise a group of man-made organic compounds, some of which are persistent contaminants with developmental toxicity shown in laboratory animals. There is a paucity of human perinatal exposure data. The US EPA conducted a pilot study (Methods
Zhi-Jun Ge et al.
Pharmacological reports : PR, 62(1), 170-177 (2010-04-03)
Clinical trials with partial liquid ventilation demonstrate improvement in oxygenation, as well as some adverse side effects linked to the application of liquid perfluorocarbons (PFCs) during liquid ventilation. Thus, we examined the effects of systemic administration of PFC on acute
Wenhai Xu et al.
Journal of hazardous materials, 151(2-3), 692-698 (2007-07-31)
The influence of collection solvents hexane and perfluorohexane on the permeation of the non-polar and non-volatile di-n-octyl disulfide (DOD) through nitrile glove material was investigated using the American Society for Testing and Materials (ASTM) F739-99a method. The weight and the
Veerle L B Jaspers et al.
Environment international, 52, 9-16 (2012-12-26)
Perfluoroalkyl substances (PFASs) were investigated in tail feathers and soft tissues (liver, muscle, preen gland and adipose tissue) of barn owl (Tyto alba) road-kill victims (n=15) collected in the province of Antwerp (Belgium). A major PFAS producing facility is located
Kyunghee Ji et al.
Environment international, 45, 78-85 (2012-05-15)
Perfluorinated compounds (PFCs) have been frequently detected in both the environment and biota, and have become a growing concern. However, information is limited on the potential sources and human health implications of such exposure. We evaluated the exposure levels of
Meifang Zhou et al.
Ultrasonics sonochemistry, 17(2), 333-337 (2009-10-24)
Liquid-encapsulated lysozyme microspheres were successfully synthesized using a sonochemical method. The encapsulation of four different liquids, namely, sunflower oil, tetradecane, dodecane and perfluorohexane on the formation, stability and morphology of the lysozyme microspheres was studied. Among the four different liquids
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