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Plasma Medicine

Publication de 4  numéros par an

ISSN Imprimer: 1947-5764

ISSN En ligne: 1947-5772

SJR: 0.216 SNIP: 0.263 CiteScore™:: 1.4 H-Index: 24

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Radio-Frequency Plasma-Induced Biocompatibility of Polyimide Substrates

Volume 8, Numéro 1, 2018, pp. 35-44
DOI: 10.1615/PlasmaMed.2018023951
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RÉSUMÉ

Surfaces of polyimide (PI) sheets were modified using 13.56-MHz radio-frequency discharges to enhance their affinity with fibroblast cells. Physico-chemical analysis of pristine and plasma-treated PI sheets showed different responses against argon (Ar), oxygen (O2), and nitrogen (N2) as the plasma process gases. Overall, hydrophilicity of treated PI surfaces was enhanced, and its surface free energy increased from 53 dyn/cm to at least 73 dyn/ cm. Surface roughness values also increased from 1.3 to 40.8 nm, as demonstrated by atomic force microscopy analyses. Infrared spectral analyses showed a decrease of imide functional group peak intensities on plasma exposure, corresponding to chemical surface structural changes. In addition, plasma-treated surfaces significantly increased cell adhesion and proliferation compared to pristine samples. N2-containing plasma exhibited the greatest increase among the test gases, due to the possible inclusion of N2-based functional groups that enhance biochemical affinity of fibroblast cells.

CITÉ PAR
  1. Latag Glenn V., Vasquez Magdaleno R., Effects of RF plasma modification on the thermal and mechanical properties of electrospun chitosan/poly(vinyl alcohol) nanofiber mats, Journal of Vacuum Science & Technology B, 36, 4, 2018. Crossref

  2. Lao Tiffany Louise B., Cordura Stephen Louis A., Diaz Leslie Joy L., Vasquez Magdaleno R., Influence of plasma treatment on the dissolution of cellulose in lithium chloride–dimethylacetamide, Cellulose, 27, 17, 2020. Crossref

  3. Taaca Kathrina Lois M., Prieto Eloise I., Vasquez Magdaleno R., Current Trends in Biomedical Hydrogels: From Traditional Crosslinking to Plasma-Assisted Synthesis, Polymers, 14, 13, 2022. Crossref

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