Next Article in Journal
A Strategy toward Realizing Ultrashort Channels and Microstructures Array by Piezoelectric Inkjet Printing
Next Article in Special Issue
Biocompatible Polymer Materials with Antimicrobial Properties for Preparation of Stents
Previous Article in Journal
SmS/EuS/SmS Tri-Layer Thin Films: The Role of Diffusion in the Pressure Triggered Semiconductor-Metal Transition
Previous Article in Special Issue
Shape Dependent EMA Model of Nanostructured Anisotropic Materials
Open AccessArticle

Tuning the Properties of Nanogel Surfaces by Grafting Charged Alkylamine Brushes

by Zbyšek Posel 1,2,* and Paola Posocco 2
1
Department of Informatics, Faculty of Science, Jan Evangelista Purkyně University in Ústí nad Labem, 40096 Ústí nad Labem, Czech Republic
2
Department of Engineering and Architecture, University of Trieste, 34127 Trieste, Italy
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(11), 1514; https://doi.org/10.3390/nano9111514
Received: 30 September 2019 / Revised: 17 October 2019 / Accepted: 21 October 2019 / Published: 24 October 2019
Nanogels are chemically crosslinked polymeric nanoparticles endowed with high encapsulation ability, tunable size, ease of preparation, and responsiveness to external stimuli. The presence of specific functional groups on their surfaces provides an opportunity to tune their surface properties and direct their behavior. In this work, we used mesoscale modeling to describe conformational and mechanical properties of nanogel surfaces formed by crosslinked polyethylene glycol and polyethyleneimine, and grafted by charged alkylamine brushes of different lengths. Simulations show that both number of chains per area and chain length can be used to tune the properties of the coating. Properly selecting these two parameters allows switching from a hydrated, responsive coating to a dried, highly charged layer. The results also suggest that the scaling behavior of alkylamine brushes, e.g., the transition from a mushroom to semi-dilute brush, is only weakly coupled with the shielding ability of the coating and much more with its compressibility. View Full-Text
Keywords: nanogels; charged brushes; dissipative particle dynamics; adsorption; smart surfaces; responsive surfaces nanogels; charged brushes; dissipative particle dynamics; adsorption; smart surfaces; responsive surfaces
Show Figures

Graphical abstract

MDPI and ACS Style

Posel, Z.; Posocco, P. Tuning the Properties of Nanogel Surfaces by Grafting Charged Alkylamine Brushes. Nanomaterials 2019, 9, 1514.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop