Publications associées à Après-shampooing

Ion Adsorption Enhances Apparent Nonelectrostatic Attraction between Monomers in Polyelectrolyte Brushes

Polyelectrolyte brushes are responsive to salt in the environment, and this has found broad applications in antifouling, biolubrication, and drug delivery. Salt primarily influences the conformation of the polyelectrolytes through ion adsorption. While ion ...

American Chemical Society2024

Formation of N-nitrosamines by micelle-catalysed nitrosation of aliphatic secondary amines

Urs von Gunten, Florian Frédéric Vincent Breider, Isuf Salihu

N-Nitrosamines are an important class of potent human carcinogens and mutagens that can be present in water and wastewater. For instance, N-nitrosamines can be formed by reaction of nitrosating agents such as NO+ or N2O3 formed from nitrite under acidic co ...

2018

Structure and functionality of polyelectrolyte brushes, a surface force perspective

Harm-Anton Klok, Xingyu Xu, Mark Billing, Jing Yu

The unique functionalities of polyelectrolyte brushes depend on several types of specific interactions, including solvent structure effects, hydrophobic forces, electrostatic interactions, and specific ion interactions. Subtle variations in the solution en ...

2018

Selective Peptide-Mediated Enhanced Deposition of Polymer Fragrance Delivery Systems on Human Hair

Harm-Anton Klok, Kemal Arda Günay

The deposition of fragrance delivery systems onto human hair from a shampoo formulation is a challenging task, as the primary function of shampoo is to cleanse the hair by removing primarily hydrophobic moieties. In this work, to tackle this challenge, pha ...

2017

Bioinspired Selective Surface Deposition of Fragrance Delivery Systems

Kemal Arda Günay

The perception of pleasantness in many of the consumer goods is provided by volatile chemical compounds called fragrances. While the volatility of fragrances is essential to provide a pleasant olfactory response, it presents at the same time a technologi ...

EPFL2016

Tribology of surface-grafted polymer brushes

Harm-Anton Klok, Piotr Mocny

Surface-grafted polymer brushes are a very attractive class of boundary lubricants. This article presents an overview of the tribological properties of surface-attached synthetic polymers. After a brief review of some mechanistic considerations and a discu ...

Royal Soc Chemistry2016

Improving the Stability in Aqueous Media of Polymer Brushes Grafted from Silicon Oxide Substrates by Surface-Initiated Atom Transfer Radical Polymerization

Harm-Anton Klok, Dusko Paripovic

Hydrophilic polymer brushes grown via surface-initiated ATRP from silicon oxide surfaces are susceptible to detachment via hydrolytic cleavage of the anchoring siloxane bond. This paper investigates the influence of the structure of the ATRP initiator on t ...

2011

Biofunctional and biomimetic polymer brushes prepared via surface-initiated atom transfer radical polymerization

Harm-Anton Klok

Surface-initiated controlled radical polymerization is a powerful strategy to tailor the chemical and physical surface properties of materials. This article highlights recent work from the author's laboratory in which surface-initiated atom transfer radica ...

2008

Model surfaces for human hair : screening perfumes and surfactants

The thesis describes the development of surfaces that model the surface of human hair in order to characterize the adsorption of detergents and perfumes. Three types of model surfaces were investigated consisting of (i) a self-assembled monolayer of protei ...

EPFL2006

Protein-Functionalized Polymer Brushes

Harm-Anton Klok, Kai Johnsson, Stefano Tugulu, India Christina Sielaff, Anke Arnold

A new strategy for the prepn. of protein-functionalized polymer brushes is reported, which is based on a combination of surface-initiated atom transfer radical polymn. (ATRP), p-nitrophenyl chloroformate activation of the surface hydroxyl groups, and subse ...

American Chemical Society2005