Skip to main content

Core–Shell Magnetic Nanoparticles of Heparin Conjugate as Recycling Anticoagulants

Buy Article:

$105.00 plus tax (Refund Policy)

Polyvinyl alcohol-shell magnetic nanoparticles (PVA-shell MNPs, PMNPs) were successfully prepared by in-situ co-precipitation process. Heparin (HEP) was then covalently conjugated on the PMNPs by using aminotrimethoxysilane (ATMS) and 4,4-diphenyl methane diisocyanate (HMDI) as molecular coupling agent (spacer). The morphology of the core–shell PMNPs was examined using transmission electron microscope (TEM), X-ray diffraction (XRD), and Raman spectrometry to demonstrate the core–shell structure, as well as X-ray photoelectron spectroscope (XPS) to provide direct evidence that the heparin molecules were immobilized on the surface of the core–shell PMNPs. Anticoagulant activity was evaluated with several parameters including activated partial thrombin time (APTT), prothrombin time (PT), fibrinogen time (FT), and thrombin time (TT). The results show that longer spacer would give better anticoagulant activity since lower steric hindrance can induce higher heparin grafting density. It might be anticipated that PMNPs of heparin conjugate can be used as anticoagulants instead of traditional free heparin, owing to its recycling characteristics by magnetic fields.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics


Document Type: Research Article

Publication date: 2007-12-01

More about this publication?
  • Journal of Biomedical Nanotechnology (JBN) is a peer-reviewed multidisciplinary journal providing broad coverage in all research areas focused on the applications of nanotechnology in medicine, drug delivery systems, infectious disease, biomedical sciences, biotechnology, and all other related fields of life sciences.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more