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測量應(yīng)用案例-20210903

來源:美國布魯克海文儀器公司   2021年09月23日 16:29  
 

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

 

 

作者 Selin Sagbas Suner, Subhra Mohapatra, Ramesh S. Ayyala, Venkat R. Brethanabotla, Nurettin Sahiner

Department of Chemistry, Faculty of Sciences & Arts, and Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale, Turkey

Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida, USA

 

 

摘要: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 10days at pH 7.4. The antioxidant capacity of 55.0 ±0.9 μg/ml gallic acid equivalent in terms of total phenol content, and 0.88 ±0.3 μmol/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 μg/ml concentration. The cytotoxicity results show that p(CAT) particles have almost no toxicity for CCD841 normal colon cells at 250 μg/ml concentration in 24h incubation time giving ~97% cell viability, whereas CAT molecules only provide ~34% cell viability.

 

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