نتایج جستجو برای: oxygen permeability

تعداد نتایج: 256260  

Journal: :iranian journal of pharmaceutical sciences 0
babak ghanbarzadeh department of food science and technology, faculty of agriculture, university of tabriz, tabriz, iran, abdorasul oromiehi iran polymers and petrochemical institute, pazhoohesh street, tehran, iran

zein is one of the best biopolymer for edible film making and sugars are natural plasticizers for biopolymers. in this research, sugars (fructose, galactose and glucose) at three levels (0.5, 0.7, 1 g/g of zein) were used as plasticizers for zein protein films and their water vapor permeability (wvp), oxygen permeability (op) and atomic force microscopy (afm) topography were studied. the pure z...

2012
Gary Chinga-Carrasco Kristin Syverud

Cellulose nanofibrils have been proposed for novel barrier concepts, based on their capability to form smooth, strong and transparent films, with high oxygen barrier properties. A series of cellulose-based films were manufactured and tested with respect to their oxygen transmission rate (OTR) capabilities. The obtained OTR levels were considerably better than the levels recommended for packagin...

2001
R. D. Hagenmaier

Mandarin hybrids were treated with wax and resin coatings having differing oxygen permeabilities. After storage for 7 days at 21 °C, fruit with coatings having O2 permeability 1.1×10 mol m s m Pa were rated by a sensory panel as markedly less fresh than fruit with higher permeability coatings. These low-permeability coatings were those composed mainly of shellac and wood resin. The flavor chang...

Journal: :The American journal of physiology 1970
R L Goodale B Goetzman M B Visscher

GOODALE, ROBERT L., BOYD GOETZMAN, AND MAURICE B. VISSCHER. Hypoxia and ioduacetic acid and alveohzpillary barrier permeability to albumin, Am. J. Physiol. 219(5): 12264230. 1970Perfusion studies at controlled flow rates using the isolated left lower lobe of the canine lung were performed under normal oxygen tensions and under conditions of low 0, tension, averaging 12 mm Hg. The average permea...

Journal: :Journal of controlled release : official journal of the Controlled Release Society 2000
H Maeda J Wu T Sawa Y Matsumura K Hori

Most solid tumors possess unique pathophysiological characteristics that are not observed in normal tissues or organs, such as extensive angiogenesis and hence hypervasculature, defective vascular architecture, impaired lymphatic drainage/recovery system, and greatly increased production of a number of permeability mediators. The phenomenon now known as the enhanced permeability and retention (...

Journal: :The Journal of pharmacology and experimental therapeutics 2007
Soo Bin Yim Sang Eun Park Chung Soo Lee

Defects in mitochondrial function have been shown to participate in the induction of neuronal cell injury. The aim of the present study was to assess the preventive effect of licorice compounds glycyrrhizin and 18beta-glycyrrhetinic acid against the toxicity of parkinsonian neurotoxin 1-methyl-4-phenylpyridinium (MPP+) in relation to the mitochondria-mediated cell death process and role of oxid...

Journal: :American journal of respiratory cell and molecular biology 2005
István Vadász Rory E Morty Andrea Olschewski Melanie Königshoff Markus G Kohstall Hossein A Ghofrani Friedrich Grimminger Werner Seeger

Coagulation is an emerging area of interest in the pathogenesis and treatment of acute lung injury. Concentrations of the edemagenic coagulation protease thrombin are elevated in plasma and lavage fluids from afflicted patients. We explored the impact of thrombin on the formation and resolution of alveolar edema. Intravascularly applied thrombin inhibited active transepithelial 22Na transport i...

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