Results 311 to 320 of about 507,031 (333)
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2013
Surface active agents are included in most aqueous treating fluids to improve the compatibility of aqueous fluids with the hydrocarbon-containing reservoir. To achieve a maximal conductivity of hydrocarbons from subterranean formations after fracture or other stimulation, it is the practice to cause the formation surfaces to be water-wet.
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Surface active agents are included in most aqueous treating fluids to improve the compatibility of aqueous fluids with the hydrocarbon-containing reservoir. To achieve a maximal conductivity of hydrocarbons from subterranean formations after fracture or other stimulation, it is the practice to cause the formation surfaces to be water-wet.
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Annual Review of Medicine, 1989
Pulmonary surfactant is a chemically heterogeneous material that provides a stable, low surface tension within the lung, thereby preventing alveolar collapse at low transpulmonary pressures. Both the lipid and the protein components of surfactant are important for establishing and maintaining a low surface tension.
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Pulmonary surfactant is a chemically heterogeneous material that provides a stable, low surface tension within the lung, thereby preventing alveolar collapse at low transpulmonary pressures. Both the lipid and the protein components of surfactant are important for establishing and maintaining a low surface tension.
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Medical Hypotheses, 1977
In previous publications (1,2) the hypothesis was put forward that atheroma is caused by some pathogen or metabolic fault which impairs the transportability of cholesterol in the plasma. The lipoproteins containing the faulty metabolites are assumed to be incapable of traversing the capillary endothelium and continue to circulate uselessly in the blood
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In previous publications (1,2) the hypothesis was put forward that atheroma is caused by some pathogen or metabolic fault which impairs the transportability of cholesterol in the plasma. The lipoproteins containing the faulty metabolites are assumed to be incapable of traversing the capillary endothelium and continue to circulate uselessly in the blood
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Surfactant–Amino Acid and Surfactant–Surfactant Interactions in Aqueous Medium: a Review
Applied Biochemistry and Biotechnology, 2015An overview of surfactant-amino acid interactions mainly in aqueous medium has been discussed. Main emphasis has been on the solution thermodynamics and solute-solvent interactions. Almost all available data on the topic has been presented in a lucid and simple way.
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Clinics in Perinatology, 1993
Exogenous surfactant replacement mixtures currently used for the prevention and treatment of neonatal respiratory distress syndrome are either obtained from mammalian lungs or are totally synthetic. The synthetic surfactants contain no surfactant proteins and tend to show less surface activity than protein-containing mammalian-based surfactants ...
Alan J. Waring, Bruce A. Holm
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Exogenous surfactant replacement mixtures currently used for the prevention and treatment of neonatal respiratory distress syndrome are either obtained from mammalian lungs or are totally synthetic. The synthetic surfactants contain no surfactant proteins and tend to show less surface activity than protein-containing mammalian-based surfactants ...
Alan J. Waring, Bruce A. Holm
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International Journal of Cosmetic Science, 1998
The skin surface is the interface between us, the organism, and the outside world. When we clean the skin we remove not only the bacteria, dirt and grease which have accumulated, but also part of our natural barrier ‐ the stratum corneum. Corneocytes, both singly and in clumps, are released from the skin surface by the action of detergents and ...
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The skin surface is the interface between us, the organism, and the outside world. When we clean the skin we remove not only the bacteria, dirt and grease which have accumulated, but also part of our natural barrier ‐ the stratum corneum. Corneocytes, both singly and in clumps, are released from the skin surface by the action of detergents and ...
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Surfactant and surfactant inhibitors in meconium aspiration syndrome
The Journal of Pediatrics, 2001Surfactant indices and inhibitors were measured in lung lavage fluid from 8 infants with meconium aspiration syndrome (MAS) who were receiving mechanical ventilation and 11 healthy control subjects. Surfactant phospholipid and surfactant protein A content in MAS was not different from that of control subjects, but concentrations of total protein ...
Peter A. Dargaville +2 more
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Emergency Medicine Clinics of North America, 2008
In this article, the physiology of surfactant is reviewed along with the research that lead to its current clinical uses. Acute lung injury (ALI) and Acute Respiratory Distress Syndrome (ARDS) will also be reviewed because they represent pulmonary disease processes in which secondary deficiency and surfactant inactivation occur, for which surfactant ...
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In this article, the physiology of surfactant is reviewed along with the research that lead to its current clinical uses. Acute lung injury (ALI) and Acute Respiratory Distress Syndrome (ARDS) will also be reviewed because they represent pulmonary disease processes in which secondary deficiency and surfactant inactivation occur, for which surfactant ...
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Neonatal Surfactant Deficiency and Surfactant Replacement Therapy
International Journal of Technology Assessment in Health Care, 1991For the past 25 years, attempts have been made to treat respiratory distress syndrome (RDS) by administration of surfactant into the airways. This practice is not yet an accepted form of therapy. Lack of generally available surfactant during the present era of prospective studies will hopefully decrease the therapeutic misuse of this novel medicine.
Mikko Hallman +3 more
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Microbial Surfactants: Alternative to Vegetable Oil Surfactants
2019Biosurfactants, surface active molecules synthesized by microorganisms, represent a promising alternative to the synthetic surfactants in many different applications. Among them, rhamnolipids have attracted considerable attention in the last years due to their extraordinary surface-active properties and biological activities.
Gudiña, Eduardo José, Rodrigues, L. R.
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