The monolayer structure of the branched nonyl phenol oxyethylene glycols at the air-water interface

Article Abstract:

An investigation into the surface behavior of the para-substituted nonyl phenol ethoxylates with branched nonyl chains at the air-water interface by neutron reflection and surface tension measurements is described.

Chemical research, Chemistry, Physical and theoretical, Physical chemistry

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The structure of monododecyl pentaethylene glycol monolayers with and without added dodecane at the air/solution interface: a neutron reflection study

Article Abstract:

A study was conducted to analyze the composition and structure of a mixed monolayer of dodecane and the nonionic surfactant pentaethylene glycol monododecyl ether. Neutron reflectometry and surface tensiometry were utilized to carry out the analysis. The neutron reflection supported measurements of a suitably deuterated surfactant dissolved in null reflecting water. In addition, the structure of the C12E5 at the surface of aqueous solutions of C12E5 was examined.

Monomolecular films, Surfaces (Materials), Ethers, Ethers (Class of compounds), Surfaces (Technology), Glycols, Glycols (Class of compounds)

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The conformational structure of bovine serum albumin layers adsorbed at the silica-water interface

Article Abstract:

The adsorption of bovine serum albumin (BSA) at the hydrophilic silica-water interface was investigated through specular neutron reflection. The measurements were performed over the concentration range of 0.005 to 0.5 g/cu dm. The surface excess was observed to vary from 1.8 to 2.4 mg/sq m. Comparison of the layer thickness with the dimensions of the ellipsoidal structure of the globular solution structure showed that the molecules adsorb sideways-on.

Water, Silica, Molecular structure, Adsorption, Serum albumin, Water analysis, Silicon dioxide

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