Structure analysis of amphiphilic di-block copolymer monolayer by X-ray reflectivity

Amphiphilic Block Copolymer Nano-micelles: Effect of Length Ratio of the Hydrophilic Block

Block copolymer nano-micelles are especially important in cancer treatment because of their fine dimensions. In this article, three systems of amphiphilic copolymers with similar lengths and different ratios of the hydrophobic and hydrophilic chains are studied using implicit-solvent coarse-grained molecular dynamics simulations. The factor fphil is defined as the ratio of the number...

X-ray reflectivity of a Langmuir monolayer on water

2014 We built a special Langmuir through allowing the use of X-ray reflectivity. Using the device we studied for the first time the density profile of a Langmuir monolayer directly on water. This experiment opens new prospects in particular to measure the roughness of solid films on water subphase. Revue Phys. Appl. 22 .(1987) 775-778 AOÛT 1987,

Biomimetic monolayer and bilayer membranes made from amphiphilic block copolymer micelles.

The deposition of amphiphilic poly(ethylene oxide)-block-poly(butadiene) (PEO-b-PBD) copolymer micelles is demonstrated on solid substrates. Depending upon surface chemistry, micelle adsorption creates either monolayer or bilayer films. Lateral diffusion measurements reveal that strong coupling between hydrophilic surfaces and PEO blocks creates immobile bilayers, while monolayers retain the fl...

Accuracy in x-ray reflectivity analysis

The influence of Poisson noise on the accuracy of x-ray reflectivity analysis is studied with an aluminium oxide (AlO) layer on silicon. A null hypothesis which argues that other than the exact solution gives the best fitness is examined with a statistical p-value test using a significance level of α = 0.01. Simulations are performed for a fit instead of a measurement since the exact error caus...

Magnetic X-ray Reflectivity