Cited by 54Polymer Surface Interaction StudiesNitric Oxide and Endothelin EffectsDyeing and Modifying Textile Fibers

Improved hemocompatibility of poly(ethylene terephthalate) modified with various thiol-containing groups

Gappa-Fahlenkamp, Heather, Lewis, Randy S.·2005·Biomaterials

Abstract

Thiol groups were attached to polyethylene terephthalate (PET) to promote the transfer of a known platelet inhibitor, nitric oxide (NO), from nitrosated thiols naturally found in the body to PET, followed by the release of NO from PET to prevent platelet adhesion. In order to immobilize the most thiols on the modified polymer, the processing parameters used to attach the following three thiol containing groups were assessed: L-cysteine, 2-iminothiolane, and a cysteine polypeptide. When comparing the immobilized concentrations of thiol groups from each of the optimized processes the amount of immobilized thiol groups increased in order with the following groups: cysteine polypeptide <2-iminothiolane <L-cysteine. The effect of each optimized polymer on platelet adhesion was studied by in vitro experiments utilizing a parallel plate perfusion chamber. Platelets in the following solutions were tested: Tyrode's buffer, 7 microm nitrosated bovine serum albumin in Tyrode's buffer, 50% plasma in Tyrode's buffer, and 50% whole blood in Tyrode's buffer. All of the polymers demonstrated a significant decrease in platelet adhesion compared to controls when exposed to the BSANO, plasma and whole blood solutions. The most significant decrease was for the L-cysteine modified polymer in the plasma solution with a 65% decrease.

Integrity signals

Registry

Crossref · 10.1016/j.biomaterials.2004.09.028

Cites

18 of 18 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?

  • Catalysis-based NO generating polymers generate NO from endogenous RSNOs or infused RSNO solutions through thiol transnitrosations and subsequent catalytic reactions using immobilized copper or selenium species.

    “Instead of incorporating NO donors or NO functionalities into polymers, many efforts have been devoted to generate NO from endogenous RNSOs or infusion of RSNO solutions through thiol transnitrosations,160,253 and subsequent catalytic reactions using immobilized copper or selenium-based species”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Gappa-Fahlenkamp, H., & Lewis, R. S.
Affiliations
Oklahoma State University (US)
Corresponding author
Lewis, Randy S.
Venue
Biomaterials
Publisher
Elsevier BV
Published
2005-06
Volume
26
Issue
17
Pages
3479-3485
ISSN
0142-9612 (ISSN-L)
OpenAlex
W2057764953
Cited by
53
References
18
Citations by year
2023: 2 · 2022: 2 · 2021: 1 · 2019: 1 · 2018: 4 · 2017: 2 · 2016: 4 · 2015: 4 · 2014: 2 · 2013: 5 · 2012: 3
FWCI
0.94
Type
journal article
Language
en
Open access
closed
Locations
  • Biomaterials (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Surfaces, Coatings and Films › Polymer Surface Interaction Studies
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Physical Sciences › Engineering › Building and Construction › Dyeing and Modifying Textile Fibers
Keywords
polyethylene terephthalate, hemocompatibility, nitric oxide release, platelet adhesion, cysteine, 2-iminothiolane, surface modification
MeSH terms
Blood, Blood Platelets, Cells, Cultured, Cysteine, Humans, Materials Testing, Nitric Oxide, Platelet Adhesiveness, Polyethylene Terephthalates, Sulfhydryl Compounds, 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