title: Time-dependent biodistribution, clearance and biocompatibility of magnetic fibrin nanoparticles: an in vivo study.
abstract: Recently, bioretention and toxicity of injected nanoparticles in the body has drawn much attention in biomedical research. In the present study, 5 mg Fe per kg body weight of magnetic fibrin nanoparticles (MFNPs) were injected into mice intravenously and investigated for their blood clearance profile, biodistribution, haematology and pathology studies for a time period of 28 days. Moderately long circulation of MFNPs in blood was observed with probable degradation and excretion into the bloodstream via monoatomic iron forms. Inductively coupled plasma optical emission spectrometry (ICP-OES) and Prussian blue staining results showed increased accumulation of MFNPs in the liver, followed by spleen and other organs. Body weight, spleen/thymus indexes, haematology, serum biochemistry and histopathology studies demonstrated that MFNPs were biocompatible. These results suggest the feasibility of using MFNPs for drug delivery and imaging applications.
authors.affiliation: Bio-Products Laboratory, Central Leather Research Institute (CLRI), Adyar, Chennai 600 020, India. sastrytp@hotmail.com.
authors.forename: Periyathambi
authors.initials: P
authors.lastname: Prabu
authors.forename: Weslen S
authors.initials: WS
authors.lastname: Vedakumari
authors.forename: Thotapalli P
authors.initials: TP
authors.lastname: Sastry
mesh_terms: D000818:Animals; D001672:Biocompatible Materials / Q000737:chemistry* / Q000493:pharmacokinetics; D001835:Body Weight; D000067493:Dynamic Light Scattering; D005260:Female; D005337:Fibrin / Q000737:chemistry*; D006461:Hemolysis; D008099:Liver / Q000378:metabolism / Q000473:pathology; D058185:Magnetite Nanoparticles / Q000737:chemistry*; D051379:Mice; D008807:Mice, Inbred BALB C; D013154:Spleen / Q000378:metabolism / Q000473:pathology; D013997:Time Factors; D014018:Tissue Distribution
chemical_list: D001672:Biocompatible Materials; D058185:Magnetite Nanoparticles; D005337:Fibrin