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Now showing items 11-20 of 36
Unraveling the correlations between conformation, lubrication, and chemical stability of bottlebrush polymers at interfaces
(American Chemical Society, 2017-09-29)
In the present study, we monitored the conformation and chemical stability of a hydrophilic bottlebrush (BB) polymer in pure water and buffered saline solutions. We correlated these parameters to lubricating and wear ...
Hydration forces at solid and fluid biointerfaces
(American Vacuum Society, 2016-01)
We review the different molecular mechanisms giving rise to the repulsive hydration force between biologically relevant surfaces such as lipid bilayers and bio-ceramics. As we will show, the hydration force manifests ...
Wear protection without surface modification using a synergistic mixture of molecular brushes and linear polymers
(American Chemical Society, 2017-01-10)
We describe the design of lubricating and wear protecting fluids based on mixtures of bottlebrushes (BB) and linear polymers solutions. To illustrate this concept we used hyaluronic acid (HA) - a naturally occurring linear ...
Bioinspired microstructures of chitosan hydrogel provide enhanced wear protection
(Royal Society of Chemistry, 2018-02-16)
We describe the fabrication of physical chitosan hydrogels exhibiting a layered structure. This
bilayered structure, as shown by SEM and confocal microscopy, is composed of a thin dense
superficial zone (SZ), covering a ...
Nanoparticle heterogeneity : an emerging structural parameter 2 influencing particle fate in biological media?
(Royal Society of Chemistry, 2018-11-27)
Drug nanocarriers’ surface chemistry is often presumed to be uniform. For instance, the polymer surface coverage and distribution of ligands on nanoparticles are described with averaged values obtained from quantification ...
Intermolecular interactions between Bottlebrush Polymers boost the protection of surfaces against frictional wear
(ACS Publications, 2018-05-30)
Polymers exhibiting the bottlebrush (BB) architecture have excellent lubricating properties. However, to motivate their use in real life systems, they must also protect surfaces against frictional damage. In this article, ...
Insiders, smart drugs et pharmaceuticalisation : éléments pour une typologie de la nouvelle déviance conformiste
(Département de sociologie de l’Université du Québec à Montréal & Athéna éditions, 2016)
La multiplication des usagers et usagères des smart drugs sur les campus universitaires, des go-pills dans l’armée ou encore des coast-to-coast chez les camionneurs de longue distance invite à revisiter la légitimité ...
2D, 3D and 4D active compound delivery in tissue engineering and regenerative medicine
(2015-07-01)
Recent advances in tissue engineering and regenerative medicine have shown that controlling cells microenvironment during growth is a key element to the development of successful therapeutic system. To achieve such control, ...
Increased platelet reactivity and platelet–leukocyte aggregation after elective coronary bypass surgery
(Taylor & Francis, 2018-11-13)
Inflammatory mechanisms are activated, and thrombotic complications occur during the initial
months after coronary artery bypass grafting (CABG). Therefore, changes over time of platelet
activation and platelet–leukocyte ...