title: Attenuation of the in vivo toxicity of biomaterials by polydopamine surface modification.
abstract: OBJECTIVE
  Polydopamine coating is emerging as a useful method of surface functionalization due to the ability of this compound to form a nanometer-scale organic thin film on virtually any material surface to which proteins, peptides, oligonucleotides, metal ions or synthetic polymers are able to be attached. The unique properties of polydopamine make this technique suitable for nanomedicine. To facilitate the use of polydopamine, evaluation of toxicity is of great importance. In this article, we investigated the in vivo toxicity of polydopamine.
  
  
  RESULTS
  We found that the polydopamine functions as a biocompatible layer, attenuating adverse biological responses caused by intrinsic properties of the coated material. One-step polydopamine coating greatly reduced the inflammatory response to poly-L-lactic acid surfaces and the immunological responses of blood on quantum dots were also reduced.
  
  
  CONCLUSIONS
  Our results indicate that polydopamine provides a versatile platform that can reduce the in vivo toxicity of biomaterials that contact tissue or blood.
authors.affiliation: Department of Chemistry, Korea Advanced Institute of Science and Technology, 335 Science Road, Daejeon, Republic of Korea.
authors.forename: Seonki
authors.initials: S
authors.lastname: Hong
authors.forename: Keum Yeon
authors.initials: KY
authors.lastname: Kim
authors.forename: Hwang Jin
authors.initials: HJ
authors.lastname: Wook
authors.forename: Sung Young
authors.initials: SY
authors.lastname: Park
authors.forename: Kang Dae
authors.initials: KD
authors.lastname: Lee
authors.forename: Dong Yun
authors.initials: DY
authors.lastname: Lee
authors.forename: Haeshin
authors.initials: H
authors.lastname: Lee
mesh_terms: D000818:Animals; D056148:Chromatography, Reverse-Phase; D020099:Coated Materials, Biocompatible / Q000737:chemistry* / Q000633:toxicity*; D007211:Indoles / Q000737:chemistry* / Q000276:immunology / Q000633:toxicity*; D019344:Lactic Acid / Q000276:immunology; D007962:Leukocytes / Q000166:cytology; D008264:Macrophages / Q000166:cytology; D051379:Mice; D008807:Mice, Inbred BALB C; D011091:Polyesters; D011108:Polymers / Q000737:chemistry* / Q000633:toxicity*; D045663:Quantum Dots; D051381:Rats; D017207:Rats, Sprague-Dawley; D013499:Surface Properties
chemical_list: D020099:Coated Materials, Biocompatible; D007211:Indoles; D011091:Polyesters; D011108:Polymers; C568283:polydopamine; D019344:Lactic Acid; C033616:poly(lactide)