Imprinting of metal receptors into multilayer polyelectrolyte films: fabrication and applications in marine antifouling

Abstract

Polymeric films constructed using layer-by-layer fabrication were employed as a platform for metal ion immobilization and applied as a marine antifouling coating.

Parallel Control over Surface Charge and Wettability Using Polyelectrolyte Architecture: Effect on Protein Adsorption and Cell Adhesion

“…The increase in frequency upon passage of PEI solution was indicative of some dissolution of surface polyelectrolytes into solution for both systems. Previous studies suggest that for the assembly of LbL films based on electrostatic attraction, the charge density of the species in the solution and on the interface must be sufficient; otherwise, desorption of the adsorbed species may occur upon adsorption of an incoming layer. , Such desorption of surface polyelectrolytes may account for the observed increase in frequency in these two systems.…”

Surface hydration for antifouling and bio-adhesion

“…Antifouling properties are important for many extensively used materials in various applications and devices such as biomedical implants, drug delivery vehicles, marine antifouling coatings, sensors, and membranes. [1][2][3][4] Extensive research demonstrated that zwitterionic polymers and polymers containing poly(ethylene glycol) components (referred to as "PEG materials" in this article) exhibit excellent antifouling activities. [5][6][7][8][9] It is believed that the strong surface hydration of such polymers mediates their excellent antifouling performance.…”

Self-assembled, nanostructured coatings for water oxidation by alternating deposition of Cu-branched peptide electrocatalysts and polyelectrolytes

“…5B ). 34 This is evident from the Cu 2p 3/2 peaks that are present at nearly the same energy (with no shake-up peaks typical for Cu-oxide/hydroxide formations 27 ). Modelling the N 1s peak with amine (NH), quaternary ammonium (NH + ) and amide (OCNH) component peaks yields a somewhat changed ratio and enrichment in NH + .…”

“… 31 The layer-by-layer (LbL) deposition of composite systems consisting of polyelectrolytes of alternating charges is a well-established cost-effective methodology. 32 The notion that certain complexes with pincer ligands can be attached to polypeptides by coordinative bonds 33 and metal receptors can be imprinted into multilayer polyelectrolytes 34 made this strategy even more attractive, since the accessible axial sites in complexes Cu-3G and Cu-2GH and the amine or amide groups of the polyelectrolytes should allow this kind of attachment ( Scheme 2b ). However, catalytic applications of such systems would require analytical methods that can detect rather small changes in mass on the surface.…”