Biomimetic Honeycomb-Structured Surfaces Formed from Block Copolymers Incorporating Acryloyl Phosphorylcholine

Abstract

We report the preparation of biomimetic honeycomb-structured porous films. These regular arrays were obtained by casting block copolymers composed of polystyrene and poly(acryloyl phosphorylcholine), so that they mimicked a cell membrane. The size of the pores and regularity of the hexagonal array is strongly dependent on the block length. The block copolymers were prepared via RAFT (reversible addition fragmentation transfer) polymerization leading to well-defined products with a good control over block sizes.

Breath Figures as a Dynamic Templating Method for Polymers and Nanomaterials

“…A larger or smaller ratio of PS to acryloyl phosphocholine block gave polydisperse and disordered BFAs of inferior quality. [39] The blue-fluorescent PPQ (poly(5-phenyl-8-(4-vinylphenyl)quinoline, 12) with a degree of polymerization of 450 repeat units forms bubble arrays of moderate quality.…”

“…[34, [37][38][39][40][41] All of these polymers formed BFAs when cast from CS 2 in moist air. Polymer concentrations (10-20 mg L -1 ) were quite low.…”

Formation of honeycomb‐structured, porous films via breath figures with different polymer architectures

“…2003 CSIRO Publishing. 31 time, 35 grows preferably on hydrophobic surfaces. Another marine bacterium, Vibrio sp.…”

“…The experimental pore sizes are not easily predictable but seem to be strongly dependent on the ratio of hydrophilic and hydrophobic blocks. In our work, we employed block copolymers based on polystyrene as the hydrophobic block together with N,N-dimethylacetamide, 29,30 2-hydroxyethyl acrylate, 29,30 acrylic acid, 29,30 and acryloyl phophorylcholine 31 as the hydrophilic blocks (Fig. 7).…”

Australian Colloid and Interface Symposium Special Issue

“…Gentle et al [10] report the formation of an interdigitated bilayer of porphyrins in cast films; Vanderlick et al [11] describes the use of peptides to control drug delivery by leakage from vesicles; and the preparation of cell membrane-mimetic polymer structures is reported by Stenzel and Davis. [12] The remaining papers cover diverse aspects of surfactant science including liquid crystals (Cassidy and Warr), [13] emulsion structure (Beattie et al), [14] sonochemistry (Grieser et al), [15] and some unusual features of liquids and solutions confined near surfaces (Kaneko et al [16] and Kurihara et al). [17] You will find Stephen Hyde's essay [18] as thoughtprovoking as his conference presentation.…”