Surfactant

Respiratory distress syndrome (RDS), also known as hyaline membrane disease (HMD), is a disease that predominantly affects premature neonates. It is due to a deficiency in surfactant which is vital in increasing lung compliance, preventing atelectasis at the end of expiration, and promoting the recruitment of collapsed alveoli by reducing surface tension. Its other name, HMD, is derived from the characteristic histological findings in early post mortems of premature babies, hyaline membranes were

Surfactant protein-D (SP-D) is a C-type lectin which is synthesized in various parts of the body. SP-D plays a key role in the auto immune disorders, lung infections and also helpful in the postnatal pregnancy. This also plays an active role in the host-defense mechanisms. In the host defense mechanism SP-D binds with various micro-organisms and other particles that enter the human body and act against them. In our present study we targeted on the interactions of surfactant protein –D with the lipid

Importance of Surfactant Introduction Surfactant is an essential component for the respiratory system to function properly. Knowing the physiology of surfactant in the alveoli is important to know when learning the structure of the air sacs and how they work. This experiment is designed to make the understanding of surfactant in the alveolar film easier to learn, because it's not very simple. Surfactant is a detergent-like substance produced by the Type II alveolar cells in the walls of the alveoli

Surfactant Lab Report: Gas Exchange In the Respiratory System Amanda De Los Santos Texas State Technical College 4/28/16 Introduction This experiment was conducted to show the importance of a surfactant using common household items and demonstrating how surface tension works in the respiratory system. Surface tension, according to Marieb and Hoehn, is when water molecules in the alveoli lining are attracted to each other and draw each other to a smaller dimension (Marieb & Hoehn, pg. 715)

The understanding that by adding designed shape or interaction anisotropy to nanoparticles will further increase possible packing schemes to the motifs in their self-assembly process. Therefore, the understanding of how individual anisotropy scale up to build complex structures are of desperate desire for designing creative particles to be transformed into materials with desired properties. Precisely defined giant molecules are providing a substantial enrichment of the library of nanoparticles with

non-thermal. The main focus of this project lies under non-thermal and in Chemical Floods. The most common global form of EOR is non-thermal. 2.4 Chemical Flooding Chemicals can be injected into reservoirs to improve oil recovery and efficiency. Surfactants like alkaline have a tendency to alter the interfacial tension properties when injected which improves oil production. The main challenge introduced while flooding with chemicals is the adsorption and

This laboratory experiment was conducted to examine the effects of a non-ionic surfactant known as Triton X-100 on the viability of a ciliated unicellular eukaryote, Tetrahymena thermophila. Due to T. thermophila being a ciliated unicellular microorganism, with a very short doubling time through binary fission it excels at being an alternative model organism utilized in the field of toxicology (Orias et al., 2011). These advantages along with its direct applicability to the toxicant without any further

and Drug Administration (FDA) approved the use of surfactants in neonates. Since then, surfactant therapy is considered as one of the few treatments that has reduced general mortality in preterm newborns with RDS. On the basis of production, surfactant is divided into two types: natural and synthetic (Roger Soll et al. 2001). The meta-analysis of number of smaller studies comparing synthetic and natural surfactants have shown that synthetic surfactants with their slower response might be supported for

in newborns including lack of pulmonary surfactant in preterm neonates, transient tachypnea of newborns, Meconium aspiration syndrome, infections, pneumothorax due to artificial ventilation and congenital heart disease [5]. Moreover, RDS due to Alveolar surfactant deficiency in preterm neonates considered as the most important cause of death between this group age during first 28 days of life, and it is the main responsible

wondered why rain drops form little bubbles, or how water makes little bubbles on pennies? To properly understand my project, you will have to understand water surface tension, and how hydrophobic and hydrophilic molecules work. Also how surfactants work, and how surfactants can propel a (n) object. Water molecules feel different pulls all around them, ones from the molecules on the surface of the water, and the other ones which are closely packed with other water molecules. Water molecules that are below