3 Results for "

entropy

" in MedChemExpress (MCE) Product Catalog:
Products (3)

3 Results for "entropy" in MCE Product Catalog:

Cat. No.: HY-W099535
CAS No.: 2044-56-6
Research Areas:  

Others

Lithium dodecyl sulfate is an anionic hydrocarbon surfactant with both surface tension reduction and interfacial adsorption capabilities. Lithium dodecyl sulfate forms micelles in aqueous solutions via entropy-driven (low temperature) and enthalpy-driven (high temperature) mechanisms, and can also form an adsorption layer at the air-water interface with quantifiable surface excess and minimum area per molecule. Lithium dodecyl sulfate exhibits favorable equilibrium surface tension and foamability, but shows low foam stability above its critical micelle concentration. When acting synergistically with tetrabutylammonium bromide, Lithium dodecyl sulfate also exhibits unique cloud point behavior due to micelle aggregation and phase separation .
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Cat. No.: HY-W096983
CAS No.: 112-00-5
Synonyms: Dodecyltrimethylammonium chloride,for IPC,≥99%
DTAC (Dodecyltrimethylammonium chloride), for IPC, ≥99% is a quaternary ammonium cationic surfactant. DTAC, for IPC, ≥99% can form micelles in aqueous media, which interact with and encapsulate Diclofenac sodium (HY-15037) molecules; the micellization process is entropy-driven at lower temperatures and enthalpy-driven at higher temperatures .
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Cat. No.: HY-P5340
CAS No.: 339091-39-3
Target:  

Inhibitory Antibodies

Research Areas:  

Others

Amyloid-Forming peptide GNNQQNY is a biological active peptide. (This is a heptapeptide from the N-terminal prion-determining domain of the yeast protein Sup35 that forms amyloid fibrils. The availability of its detailed atomic oligomeric structure makes it a good model for studying the early stage of aggregation. The GNNQQNY dimer forms three stable sheet structures. in-register parallel, off-register parallel, and anti-parallel. The in-register parallel dimer, which is close to the amyloid beta-sheet structure, has few interpeptide hydrogen bonds, making hydrophobic interactions more important and increasing the conformational entropy compared to the anti-parallel sheet.)
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