A polyphenolic biomacromolecule prepared from a flavonoid: Catechin as degradable microparticles

Suner S. S., Mohapatra S., Ayyala R. S., Brethanabotla V. R., ŞAHİNER N.

JOURNAL OF APPLIED POLYMER SCIENCE, vol.138, no.24, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 138 Issue: 24
  • Publication Date: 2021
  • Doi Number: 10.1002/app.50576
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Applied Science & Technology Source, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: biodegradable, biomaterials, biopolymers, catechin, renewable polymers, GREEN TEA, NATURAL POLYPHENOLS, CANCER, ANTIOXIDANT, POTENTIALS, CONJUGATE, TAXIFOLIN, HYDRATE
  • Çanakkale Onsekiz Mart University Affiliated: Yes


Catechin (CAT) was crosslinked with trimethylolpropane triglycidyl ether (TMPTGE) to obtain degradable poly(CAT) particles in a single step. Spherical p(CAT) particles with tens of micrometer size range and an isoelectronic point at pH 1.2 were obtained. The hydrolytic degradation of p(CAT) particles provided sustainable and extended release with 264 mg/g CAT release within 10 days at pH 7.4. The antioxidant capacity of 55.0 +/- 0.9 mu g/ml gallic acid equivalent in terms of total phenol content, and 0.88 +/- 0.3 mu mol/g trolox equivalent were estimated for p(CAT) particles displaying strong radical scavenging capability. Blood clotting and hemolysis assays demonstrated dose-dependent blood compatibility revealing higher blood compatibility for p(CAT) particles up to 10 mu g/ml concentration. The cytotoxicity results show that p(CAT) particles have almost no toxicity for CCD841 normal colon cells at 250 mu g/ml concentration in 24 h incubation time giving similar to 97% cell viability, whereas CAT molecules only provide similar to 34% cell viability.