Antifouling PVC Catheters by Gamma Radiation-Induced Zwitterionic Polymer Grafting.

ABSTRACT: In medical environments, polymeric surfaces tend to become contaminated, hindering the treatment and recovery from diseases. Biofouling-resistant materials, such as zwitterionic polymers, may mitigate this problem. In this work, the modification of PVC catheters with a binary graft of 4-vinylpyridine (4VP) and sulfobetaine methacrylate (SBMA) by the oxidative pre-irradiation method is proposed to develop pH-responsive catheters with an antifouling capacity. The ionizing radiation allowed us to overcome limitations in the synthesis associated with the monomer characteristics. In addition, the grafted materials showed a considerable increase in their hydrophilic character and antifouling capacity, significantly decreasing the protein adsorption compared to the unmodified catheters. These mat

SUBMITTER: Duarte-Pena L 

PROVIDER: S-EPMC8950535 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature