Antithrombogenic Polynitrosated Polyester/Poly(methyl methacrylate) Blend for the Coating of Blood‐Contacting Surfaces
Abstract
Abstract: A nitric oxide (NO) donor polyester containing multiple S‐nitrosothiol (S‐NO) groups covalently attached to the polymer backbone was synthesized through the esterification of poly(ethylene glycol) with mercaptosuccinic acid, followed by the nitrosation of the –SH moieties. The polynitrosated polyester (PNPE) obtained was blended with poly(methyl methacrylate) (PMMA), yielding solid films capable of releasing NO. Scanning electron microscopy analysis showed that acrylic plates and stainless steel intracoronary stents can be coated with continuous and adherent PNPE/PMMA films. After an initial NO burst, these films release NO spontaneously in dry condition or immersed in aqueous solution at constant rates of 1.8 and 180 nmol/g/h, respectively, for more than 24 h at physiological temperature. PNPE/PMMA coated surfaces were shown to inhibit platelet adhesion when in contact with whole blood. These results show that PNPE/PMMA blend can be used for the coating of blood‐contacting surfaces, with potential to inhibit thrombosis and restenosis after stenting.
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- Authors
- Seabra, A. B., Da Silva, R., De Souza, G. F. P., & De Oliveira, M. G.
- Affiliations
- Universidade Estadual de Campinas (UNICAMP) (BR)
- ORCID
- Seabra, Amedea B.
- Venue
- Artificial Organs
- Publisher
- Wiley
- Published
- 2008-03-27
- Volume
- 32
- Issue
- 4
- Pages
- 262-267
- ISSN
- 0160-564X (ISSN-L)
- 1525-1594
- OpenAlex
- W2094184870
- Cited by
- 63
- References
- 12
- Citations by year
- 2024: 1 · 2023: 1 · 2022: 3 · 2021: 5 · 2020: 2 · 2019: 3 · 2018: 4 · 2017: 3 · 2016: 6 · 2015: 8 · 2014: 6 · 2013: 5 · 2012: 7
- FWCI
- 1.53
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Artificial Organs (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
- Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
- Keywords
- nitric oxide donors, blood-contacting surfaces, antithrombogenic coatings, platelet adhesion inhibition, coronary stents, restenosis prevention, nitric oxide release, stainless steel coatings
- MeSH terms
- Acrylates, Biocompatible Materials, Blood Platelets, Delayed-Action Preparations, Fibrinolytic Agents, Humans, Kinetics, Materials Testing, Nitric Oxide, Platelet Adhesiveness, Polyesters, Prosthesis Design, Stainless Steel, Surface Properties, Thrombosis, Polymethyl Methacrylate, Nitric Oxide Donors, Coronary Restenosis, S-Nitrosothiols, Drug-Eluting Stents
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