A5073220012- Surfactants and Colloidal Systems
- Neonatal Respiratory Health Research
- Lipid Membrane Structure and Behavior
- Inhalation and Respiratory Drug Delivery
- Proteins in Food Systems
- Neuroscience of respiration and sleep
- Hemoglobin structure and function
- Electrostatics and Colloid Interactions
- Analytical Chemistry and Chromatography
- Chemical and Physical Properties in Aqueous Solutions
- Environmental Chemistry and Analysis
- Soybean genetics and cultivation
- Food Chemistry and Fat Analysis
- Surface Modification and Superhydrophobicity
- thermodynamics and calorimetric analyses
- Digital Imaging for Blood Diseases
- Protein purification and stability
- Sphingolipid Metabolism and Signaling
- Cellular transport and secretion
- Sensory Analysis and Statistical Methods
- Phase Equilibria and Thermodynamics
- Advanced Chemical Sensor Technologies
- Plant Reproductive Biology
- Advanced Polymer Synthesis and Characterization
- Protein Interaction Studies and Fluorescence Analysis
Centre for Cellular and Molecular Biology
1999-2021
Oregon Health & Science University
2002-2011
Institut National de la Recherche Agronomique
2001-2006
Limagrain (France)
2002
Jadavpur University
1997-1999
(Orgeig and Daniels) This surfactant symposium reflects the integrative multidisciplinary aims of 1st ICRB, by encompassing in vitro vivo research, studies vertebrates invertebrates, research across multiple disciplines. We explore physical structural challenges that face gas exchange surfaces insects, focusing on role system. Pulmonary is a complex mixture lipids proteins lines air-liquid interface lungs all air-breathing vertebrates, where it functions to vary surface tension with changing...
The extent of adsorption (Γ21) cetyltrimethylammonium bromide (CTAB), myristyltrimethylammonium (MTAB), and dodecyltrimethylammonium (DTAB) from aqueous solution onto a cellulose−water interface has been measured analytically in wide range surfactant concentrations below above the critical micelle concentration (cmc) at different physicochemical conditions presence electrolytes urea. Γ21 is found to increase with bulk C2 until it reaches maximum value Γ2m when value, C2m. With further beyond...
Puroindolines are lipid-binding proteins from wheat flour that play a significant role in bread crumb texture. The localization of lipids and puroindoline-a (PIN-a) dough was studied by confocal scanning laser microscopy (CSLM). Wheat were located around gas cells (GC) embedded within the protein−starch matrix (SPM) dough. PIN-a mainly dough, where it associated with lipids. In contrast, defatted found GC. Addition puroindolines induced defatting bubble surface decrease lipid vesicles and/or...
Monomolecular films of phospholipids in the liquid-expanded (LE) phase after supercompression to high surface pressures (π), well above equilibrium pressure (π e ) at which fluid collapse from interface form a three-dimensional bulk phase, and tilted-condensed (TC) both replicate resistance that is characteristic alveolar lungs. To provide basis for determining film present alveolus, we measured melting characteristics monolayers containing TC dipalmitoyl phosphatidylcholine (DPPC), as...
Adsorption of pulmonary surfactant to an air−water interface lowers surface tension (γ) at rates that initially decrease progressively, but which then accelerate close the equilibrium γ. The studies here tested a series hypotheses concerning mechanisms might cause late accelerated drop in Experiments used captive bubbles and Wilhelmy plate measure γ during adsorption vesicles containing constituents from extracted calf surfactant. faster fall reflects rather than any feature equation state...
By use of the equilibrium dialysis technique, extent binding (Γ21) cationic surfactants cetyltrimethylammonium bromide (CTAB), myristyltrimethylammonium (MTAB), and dodecyltrimethylammonium (DTAB) with dextrin carboxymethyl cellulose (CMC) respectively have been measured as a function surfactant concentration (C2), pH, ionic strength, temperature. Γ21 increases increase C2 until it reaches maximum value, Γ2m. On further C2, in all cases sharply decreases linearly its value becomes zero at...
To determine if the hydrophobic surfactant proteins affect stability of pulmonary monolayers at an air/water interface, we compared kinetics collapse for complete set lipids in calf with and without proteins. Monomolecular films spread surface captive bubbles were compressed 37°C to pressures (π) above 46 mN/m, which collapsed first occurred. The rate area‐compression required maintain constant π determined collapse. For proteins, higher initially produced faster collapse, but rates then...