title: Development of anti-biofouling interface on hydroxyapatite surface by coating zwitterionic MPC polymer containing calcium-binding moieties to prevent oral bacterial adhesion.
abstract: The purpose of the present study is to synthesize a 2-methacryloyloxyethyl phosphorylcholine (MPC) polymer capable of being immobilized on the tooth surface to prevent oral bacterial adhesion. The strategy is to develop an MPC-based polymer with Ca(2+)-binding moieties, i.e., phosphomonoester groups, for stronger binding with hydroxyapatite (HA) of the tooth surface. To this end, a 2-methacryloyloxyethyl phosphate (MOEP) monomer was synthesized and copolymerized with MPC by free radical polymerization. The coating efficiency of the synthesized polymer, MPC-ran-MOEP (abbreviated as PMP) with varied composition, onto a HA surface was estimated by means of contact angle measurement and X-ray photoelectron spectroscopy. The anti-biofouling nature of PMP-coated HA surfaces was estimated by analyzing protein adsorption, cell adhesion, and Streptococcus mutans adhesion. As a result, HA surface coated with a copolymer containing around 50% MPC (PMP50) showed the best performance in preventing protein adsorption and the downstream cell and bacterial adhesion.
  
  
  
  Preparation of anti-biofouling surface on the tooth enamel is the key technique to prevent dental and periodontal diseases, which are closely related with the biofilm formation that induced by the adsorption of salivary proteins and the adhesion of oral bacteria on the tooth surface. In this research, a PMP copolymer with an optimized ratio of zwitterionic and Ca(2+)-binding moieties could form a highly effective and robust anti-biofouling surface on HA surfaces by a simple coating method. The PMP-coated surface with high stability can provide a new strategy for an anti-adsorptive and anti-bacterial platform in dentistry and related fields.
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-747, Republic of Korea.
authors.forename: Sunah
authors.initials: S
authors.lastname: Kang
authors.affiliation: Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 136-701, Republic of Korea.
authors.forename: Myoungjin
authors.initials: M
authors.lastname: Lee
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-747, Republic of Korea.
authors.forename: Minji
authors.initials: M
authors.lastname: Kang
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-747, Republic of Korea.
authors.forename: Minwoo
authors.initials: M
authors.lastname: Noh
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-747, Republic of Korea.
authors.forename: Joohee
authors.initials: J
authors.lastname: Jeon
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-747, Republic of Korea. Electronic address: gacn@snu.ac.kr.
authors.forename: Yan
authors.initials: Y
authors.lastname: Lee
authors.affiliation: Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 136-701, Republic of Korea. Electronic address: seojh79@korea.ac.kr.
authors.forename: Ji-Hun
authors.initials: JH
authors.lastname: Seo
mesh_terms: D000818:Animals; D001422:Bacterial Adhesion; D002118:Calcium / Q000737:chemistry*; D002417:Cattle; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry*; D006801:Humans; D008689:Methacrylates / Q000737:chemistry*; D051379:Mice; D009055:Mouth / Q000382:microbiology; D041681:NIH 3T3 Cells; D010767:Phosphorylcholine / Q000031:analogs & derivatives* / Q000737:chemistry; D013295:Streptococcus mutans / Q000378:metabolism*
chemical_list: D020099:Coated Materials, Biocompatible; D008689:Methacrylates; D010767:Phosphorylcholine; C070638:2-methacryloyloxyethyl phosphorylcholine; D017886:Durapatite; D002118:Calcium
keywords: 2-Methacryloyloxyethyl phosphorylcholine; Anti-bacterial adhesion; Anti-fouling; Calcium binding; Dental materials; Streptococcus mutans