Results 21 to 30 of about 647,511 (278)

Ester-based surfactants: Are they stable enough? [PDF]

open access: yes, 2023
Surfactants with an ester bond connecting the polar headgroup and the hydrophobic tail are common. They are easy to synthesize, they can often be made from natural raw materials and their biodegradation profile is generally good, partly due to lipase or ...
Maria Stjerndahl   +8 more
core   +1 more source

Pulmonary surfactant

open access: yesJournal of Applied Physiology, 1982
Pulmonary surfactant reduces the surface tension of the alveolar air-liquid interface, thereby providing mechanical stability and preventing alveolar atelectasis. More than 50% of surfactant is dipalmitoyl phosphatidylcholine, a material that is capable of reducing the surface tension of the alveolar interface to uniquely low values.
P, Gutkowski, W, Lejman
openaire   +4 more sources

Circulação extracorpórea por membrana (ECMO) em recém-nascido com insuficiência respiratória por síndrome de aspiração meconial: efeitos da administração de surfactante exógeno Extracorporeal membrane oxygenation (ECMO) in a neonate with respiratory distress due to meconium aspiration syndrome: Effect of the administration of exogenous surfactant

open access: yesJornal de Pediatria, 2001
OBJETIVO: apresentar a evolução clínica de recém-nascido portador de insuficiência respiratória grave neonatal secundária à Sindrome de Aspiração Meconial tratado por Circulação Extracorpórea por Membrana, ou, conforme o termo consagrado em língua ...
João Gilberto Maksoud-Filho   +6 more
doaj   +1 more source

Effects of Exogenous Surfactants on the Parameters of Blood Gas Composition in Neonatal Respiratory Distress Syndrome

open access: yesОбщая реаниматология, 2007
Objective: to study the effects of the surfactants Surfactant-BL and Curosurf on pulmonary oxygenizing properties in preterm neonatal infants with respiratory distress syndrome (RDS). The studies were performed in 81 preterm neonates with severe RDS. For
S. A. Perepelitsa   +2 more
doaj   +1 more source

Insights Gained Into the Treatment of COVID19 by Pulmonary Surfactant and Its Components

open access: yesFrontiers in Immunology, 2022
Pulmonary surfactant constitutes an important barrier that pathogens must cross to gain access to the rest of the organism via the respiratory surface.
Dan Li   +6 more
doaj   +1 more source

Assessment of the potential skin irritation of lysine-derivative anionic surfactants using mouse fibroblast and human keratinocytes as an alternative to animal testing [PDF]

open access: yes, 2004
Purpose. The aim of this study was to identify new surfactants with low skin irritant properties for use in pharmaceutical and cosmetic formulations, employing cell culture as an alternative method to in vivo testing.
Vinardell, M. Pilar   +7 more
core   +1 more source

Synthesis, Structure–Activity Relationships and In Vitro Toxicity Profile of Lactose-Based Fatty Acid Monoesters as Possible Drug Permeability Enhancers

open access: yesPharmaceutics, 2018
Permeability enhancers are receiving increased attention arising from their ability to increase transepithelial permeability and thus, bioavailability of orally or pulmonary administered biopharmaceutics.
Simone Lucarini   +9 more
doaj   +1 more source

Impact of Polymer Nanoparticles on DPPC Monolayer Properties

open access: yesColloids and Interfaces, 2022
The application of surface rheology and Brewster angle microscopy on mixed monolayers of DPPC and polymeric nanoparticles (cationic and anionic) showed that the sign of the particle charge affects the dynamic properties of the monolayers less than the ...
Alexey Bykov   +6 more
doaj   +1 more source

Effect of surfactants on liquid side mass transfer coefficients: a new insight [PDF]

open access: yes, 2009
Specific experiments are proposed to investigate the effect of surfactants on liquid side mass transfer coefficients. They are based on the determination of the liquid side mass transfer coefficient kL at a free gas-liquid interface, under controlled ...
Hebrard, Gilles   +2 more
core   +1 more source

In vitro characterization and in vivo comparison of the pulmonary outcomes of Poractant alfa and Calsurf in ventilated preterm rabbits.

open access: yesPLoS ONE, 2020
Poractant alfa and Calsurf are two natural surfactants widely used in China for the treatment of neonatal respiratory distress syndrome, which are extracted from porcine and calf lungs, respectively.
Xiaojing Guo   +11 more
doaj   +1 more source

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