Forces and physical properties of the Langmuir monolayers of TiO₂ particles at air/water interfaces after collisions by a particle in water

Abstract

Vary diameter (D) of TiO2 particles in monolayer and measure surface pressure–area/particle isotherms and force curves.

Subtle chemical modification for enrichment of Fmoc-amino acid at a phospholipid interface

“…3. 30,31 Bright domains of LC phase appeared already at 0.8 nm 2 per DMPA molecule, with remarkable monodispersity in size and shape. The bright domains increased their size with compression of the DMPA monolayer up to ca.…”

Interactions Between a Responsive Microgel Monolayer and a Rigid Colloid: From Soft to Hard Interfaces

“…For example, this has been done for rice starch or TiO 2 particles. 47,49 In solution, intra-microgel interactions, which dominate the deswelling, also lead to inter-microgel aggregation. 3,84 Measurements where both the probe and the monolayer are made from the same material, e.g.…”

“…The MPIA has already been successfully used to measure the interaction between different probes in aqueous solutions and films of surfactants, soft particles, or rigid particles at air-aqueous interfaces as a function of pH, salt concentration and lateral compression. [45][46][47][48][49] We investigated two pNIPAM-based microgels with different volume phase transition temperatures (VPTT). The different VPTTs were achieved by copolymerizing N,N -diethylacrylamide (DEAAM) and NIPAM in one of the microgels.…”

“…Increasing the lateral attraction between particles within the film, e.g., by enhancing capillary forces 47 or hydrophobic interactions, 46,70 leads to stiffer monolayers. In general, S N of the film is higher for films of particles with a lower lateral mobility.…”

Rice Starch Particle Interactions at Air/Aqueous Interfaces—Effect of Particle Hydrophobicity and Solution Ionic Strength

“…of the air/aqueous interface can be systematically studied. Here, we used a combined Langmuir trough and optical microscope system, and the Monolayer Interaction Particle Apparatus (MPIA) (McNamee et al, 2015 ; McNamee and Kappl, 2016 ; Azakami et al, 2017 ), which allows the interactions between the particles to be studied at the same time as the particle packing density and bulk phase properties are varied. In this study, we compared native rice starch particles (NRS) and rice starch particles that were modified with OSA to different degrees.…”