Cited by 115Polymer Surface Interaction StudiesNitric Oxide and Endothelin EffectsBlood Coagulation and Thrombosis Mechanisms

Preparation and characterization of polymeric coatings with combined nitric oxide release and immobilized active heparin

Zhou, Zhengrong, Meyerhoff, Mark E.·2005·Biomaterials

Abstract

A new dual acting polymeric coating is described that combines nitric oxide (NO) release with surface-bound active heparin, with the aim of mimicking the nonthrombogenic properties of the endothelial cell (EC) layer that lines the inner wall of healthy blood vessels. A trilayer membrane configuration is employed to create the proposed blood compatible coating. A given polymeric substrate (e.g., the outer surface of a catheter sleeve, etc.) is first coated with a dense polymer layer, followed by a plasticized poly(vinyl chloride) (PVC) or polyurethane (PU) layer doped with a lipophilic N-diazeniumdiolate as the NO donor species. Finally, an outer aminated polymer layer is applied. Porcine heparin is then covalently linked to the outer layer via formation of amide bonds. The surface-bound heparin is shown to possess anti-coagulant activity in the range of 4.80-6.39 mIU/cm2 as determined by a chromogenic anti-Factor Xa assay. Further, the surface NO flux from the underlying polymer layer containing the diazeniumdiolate species can be controlled and maintained at various levels (from 0.5 to 60 x 10(-10) mol cm(-2)min(-1)) for at least 24 h and up to 1 week (depending on the flux level desired) by changing the chemical/polymer composition of the NO release layer. The proposed polymeric coatings are capable of functioning by two complementary anti-thrombotic mechanisms, one based on the potent anti-platelet activity of NO, and the other the result of the ability of immobilized heparin to inhibit Factor Xa and thrombin (Factor IIa). Thus, the proposed polymeric coatings are expected to exhibit greatly enhanced thromboresistivity compared to polymers that utilize either immobilized heparin or NO release alone.

Integrity signals

Registry

Crossref · 10.1016/j.biomaterials.2005.04.046

Cites

64 of 64 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Considerable effort has been devoted to developing combination therapy and hybrid drugs that combine NO release functionality with other active agents for increased efficacies, including anticoagulants, direct thrombin inhibitors, antimicrobial metal ions, quaternary ammonium compounds, PEG, antibiotics, and NSAIDs.

    “Recently, considerable effort has been devoted to develop combination therapy and hybrid drugs that combine NO release functionality with other active agents for increased efficacies, including anticoagulants,35,126 direct thrombin inhibitors,36,43 antimicrobial metal ions,215 quaternary ammonium compounds,70 PEG,115 antibiotics,296 and non-steroidal anti-inflammatory drugs (NSAIDs), such as ibu”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Zhou, Z., & Meyerhoff, M. E.
Affiliations
University of Michigan (US)
Corresponding author
Meyerhoff, Mark E.
Venue
Biomaterials
Publisher
Elsevier BV
Published
2005-11
Volume
26
Issue
33
Pages
6506-6517
ISSN
0142-9612 (ISSN-L)
OpenAlex
W2006883085
Cited by
115
References
64
Citations by year
2026: 2 · 2024: 3 · 2023: 6 · 2022: 2 · 2021: 8 · 2020: 13 · 2019: 5 · 2018: 3 · 2017: 4 · 2016: 8 · 2015: 4 · 2014: 11 · 2013: 7 · 2012: 5
FWCI
3.40
Type
journal article
Language
en
Open access
closed
Locations
  • Biomaterials (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Michigan
  • National Institutes of Health
  • National Institute of Biomedical Imaging and Bioengineering (EB 00783, R01EB000783)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD-015434, R01HD015434)
Topics
  • Physical Sciences › Materials Science › Surfaces, Coatings and Films › Polymer Surface Interaction Studies
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Hematology › Blood Coagulation and Thrombosis Mechanisms
Keywords
nitric oxide release, polymer coatings, antithrombotic coatings, N-diazeniumdiolates, polyvinyl chloride, polyurethane, anti-Xa activity, thrombin inhibition, antiplatelet activity, catheter coatings, thromboresistance
MeSH terms
Animals, Antibodies, Anticoagulants, Biocompatible Materials, Electron Probe Microanalysis, Heparin, Models, Chemical, Nitric Oxide, Magnetic Resonance Spectroscopy, Polymers, Polyurethanes, Polyvinyl Chloride, Surface Properties, Swine, Thrombin, Time Factors, Toluidines, Vinyl Chloride, Factor Xa, Spectroscopy, Fourier Transform Infrared, Nitric Oxide Donors, Coated Materials, Biocompatible

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review