title: Biocompatibility and characterization of renewable agricultural residues and polyester composites.
abstract: Composites of sesame husk and glycidyl methacrylate-grafted polytrimethylene terephthalate (PTT-g-GMA/SH) exhibit noticeably superior mechanical properties compared to PTT/SH composites due to greater compatibility between the two components. The dispersion of SH in the PTT-g-GMA matrix is highly homogeneous as a result of condensation reaction formations. Human lung fibroblasts (FBs) were seeded on these two series of composites to characterize the biocompatibility properties. In a time-dependent course, the FB proliferation results demonstrated higher performance from the PTT/SH series of composites than from the PTT-g-GMA/SH composites. In addition, collagen production by FBs present in the PTT/SH series was 20% higher than in regular culture-plates after 7 days of incubation. The water resistance of PTT-g-GMA/SH was higher than that of PTT/SH, although the weight loss of both composites buried in soil compost indicated that they were both biodegradable, especially at higher levels of SH substitution. The PTT/SH and PTT-g-GMA/SH composites were more biodegradable than pure PTT, implying a strong connection between SH content and biodegradability.
authors.affiliation: Department of Chemical and Biochemical Engineering, Kao Yuan University, Kaohsiung County, 82101, Taiwan, ROC. t50008@cc.kyu.edu.tw
authors.forename: Chin-San
authors.initials: CS
authors.lastname: Wu
authors.forename: Yi-Chiang
authors.initials: YC
authors.lastname: Hsu
authors.forename: Jen-taut
authors.initials: JT
authors.lastname: Yeh
authors.forename: Hsin-Tzu
authors.initials: HT
authors.lastname: Liao
authors.forename: Jheng-Jie
authors.initials: JJ
authors.lastname: Jhang
authors.forename: Yong-Yu
authors.initials: YY
authors.lastname: Sie
mesh_terms: D000042:Absorption; D000383:Agriculture; D001672:Biocompatible Materials / Q000138:chemical synthesis* / Q000737:chemistry / Q000633:toxicity; D001673:Biodegradation, Environmental; D002236:Carbohydrate Conformation; D002448:Cell Adhesion; D049109:Cell Proliferation; D002478:Cells, Cultured; D003521:Cyclopropanes / Q000737:chemistry; D005347:Fibroblasts / Q000187:drug effects / Q000502:physiology; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D011091:Polyesters / Q000138:chemical synthesis* / Q000737:chemistry / Q000633:toxicity; D012639:Seeds / Q000737:chemistry; D031685:Sesamum / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties; D014866:Waste Products; D014867:Water / Q000737:chemistry
chemical_list: D001672:Biocompatible Materials; D003521:Cyclopropanes; D008689:Methacrylates; D011091:Polyesters; D014866:Waste Products; D014867:Water