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Surfactin is a cyclic lipopeptide, commonly used as an antibiotic for its capacity as a surfactant. [2] It is an amphiphile capable of withstanding hydrophilic and hydrophobic environments. The Gram-positive bacterial species Bacillus subtilis produces surfactin for its antibiotic effects against competitors. [3]
Triton X--100 (C 14 H 22 O(C 2 H 4 O) n) is a nonionic surfactant that has a hydrophilic polyethylene oxide chain (on average it has 9.5 ethylene oxide units) and an aromatic hydrocarbon lipophilic or hydrophobic group. The hydrocarbon group is a 4-(1,1,3,3-tetramethylbutyl)-phenyl group.
Biodegradable and plant-derived from sugars, these surfactants are usually derivatives of glucose and fatty alcohols. [1] The raw materials are typically starch and fat , and the final products are typically complex mixtures of compounds with different sugars comprising the hydrophilic end and alkyl groups of variable length comprising the ...
Sample preparation for mass spectrometry is used for the optimization of a sample for analysis in a mass spectrometer (MS). Each ionization method has certain factors that must be considered for that method to be successful, such as volume, concentration, sample phase, and composition of the analyte solution.
GenX chemicals are used as replacements for PFOA for manufacturing fluoropolymers such as Teflon, [2] [10] the GenX chemicals serve as surfactants and processing aids in the fluoropolymer production process to lower the surface tension allowing the polymer particles to grow larger. The GenX chemicals are then removed from the final polymer by ...
An unusually small crossbow bolt with a tapered "waist" shaft section and rear skirt compared to a 1 euro cent coin A bolt or quarrel is a dart -like projectile used by crossbows . [ 1 ] The word quarrel is from the Old French quarrel (> French carreau ) "square thing", [ 2 ] specialized use as quarrel d'arcbaleste (> carreau d'arbalète ...
CHAPS is a zwitterionic surfactant used in the laboratory to solubilize biological macromolecules such as proteins.It may be synthesized from cholic acid [1] and is zwitterionic due to its quaternary ammonium and sulfonate groups; it is structurally similar to certain bile acids, such as taurodeoxycholic acid and taurochenodeoxycholic acid.
Franziska Peer of Austria, 2012 World Champion Anna Sushko of Russia, 2006 Junior World Champion, holding an IAU 10 m Match Crossbow Rajmond Debevec 1991, 1993 and 1997 World Champion IAU 30 meter Match-crossbow World Championships, Sulgen, Switzerland 2008. Match crossbow is a target shooting sport using crossbows.
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