title: Application of Targeted Molecular and Material Property Optimization to Bacterial Attachment-Resistant (Meth)acrylate Polymers.
abstract: Developing medical devices that resist bacterial attachment and subsequent biofilm formation is highly desirable. In this paper, we report the optimization of the molecular structure and thus material properties of a range of (meth)acrylate copolymers which contain monomers reported to deliver bacterial resistance to surfaces. This optimization allows such monomers to be employed within novel coatings to reduce bacterial attachment to silicone urinary catheters. We show that the flexibility of copolymers can be tuned to match that of the silicone catheter substrate, by copolymerizing these polymers with a lower Tg monomer such that it passes the flexing fatigue tests as coatings upon catheters, that the homopolymers failed. Furthermore, the Tg values of the copolymers are shown to be readily estimated by the Fox equation. The bacterial resistance performance of these copolymers were typically found to be better than the neat silicone or a commercial silver containing hydrogel surface, when the monomer feed contained only 25 v% of the "hit" monomer. The method of initiation (either photo or thermal) was shown not to affect the bacterial resistance of the copolymers. Optimized synthesis conditions to ensure that the correct copolymer composition and to prevent the onset of gelation are detailed.
authors.forename: Kevin
authors.initials: K
authors.lastname: Adlington
authors.forename: Nam T
authors.initials: NT
authors.lastname: Nguyen
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Eaves
authors.forename: Jing
authors.initials: J
authors.lastname: Yang
authors.forename: Chien-Yi
authors.initials: CY
authors.lastname: Chang
authors.forename: Jianing
authors.initials: J
authors.lastname: Li
authors.forename: Alexandra L
authors.initials: AL
authors.lastname: Gower
authors.forename: Amy
authors.initials: A
authors.lastname: Stimpson
authors.affiliation: Department of Chemical Engineering, Institute for Medical Engineering and Science, Harvard-MIT Division of Health Sciences and Technology, David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology , 500 Main Street, Cambridge, Massachusetts 02139, United States.
authors.forename: Daniel G
authors.initials: DG
authors.lastname: Anderson
authors.affiliation: Department of Chemical Engineering, Institute for Medical Engineering and Science, Harvard-MIT Division of Health Sciences and Technology, David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology , 500 Main Street, Cambridge, Massachusetts 02139, United States.
authors.forename: Robert
authors.initials: R
authors.lastname: Langer
authors.forename: Martyn C
authors.initials: MC
authors.lastname: Davies
authors.forename: Andrew L
authors.initials: AL
authors.lastname: Hook
authors.forename: Paul
authors.initials: P
authors.lastname: Williams
authors.forename: Morgan R
authors.initials: MR
authors.lastname: Alexander
authors.forename: Derek J
authors.initials: DJ
authors.lastname: Irvine
mesh_terms: D000179:Acrylates / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects*; D001422:Bacterial Adhesion / Q000187:drug effects*; D024881:Drug Resistance, Bacterial; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate / Q000737:chemistry; D046911:Macromolecular Substances / Q000737:chemistry; D058105:Polymerization; D011108:Polymers / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000179:Acrylates; D000900:Anti-Bacterial Agents; D046911:Macromolecular Substances; D011108:Polymers; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate