19 research outputs found

    Cellulose membrane as a biomaterial: from hydrolysis to depolymerization with electron beam

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    The cellulose membrane (CM) is a major component of plant cell walls and is both a chemically and mechanically stable synthetic polymer with many applications for use in tissue engineering. However, due to its dissolution difficulty, there are no known physiologically relevant or pharmaceutically clinical applications for this polymer. Thus, research is underway on controlled and adjusted forms of cellulose depolymerization. To advance the study of applying CM for tissue engineering, we have suggested new possibilities for electron beam (E-beam) treatment of CM. Treatment of CM with an E-beam can modify physical, chemical, molecular and biological properties, so it can be studied continuously to improve its usefulness and to enhance value. We review clinical applications of CM, cellulose binding domains, cellulose crosslinking proteins, conventional hydrolysis of cellulose, and depolymerization with radiation and focus our experiences with depolymerization of E-beam irradiated CM in this article

    Relationship between adult oviposition preference and larval performance of the diamondback moth, Plutella xylostella

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    Unraveling the relationship between adult oviposition preference and offspring performance is central to understanding the evolution of plant-insect interactions. In the present study, we collated previously reported data, including our own, of adult oviposition preference and offspring performance of the diamondback moth, on various wild and cultivated crucifer plants, and did correlation analysis between the two. Intrinsic rate of increase, pupal weight and fecundity of the ensuing adults were regarded as an indicator of larval performance of among 18 species of wild and cultivated host plants. Adult preference was estimated as the relative number of eggs laid on the plants by in a two-choice test or similar tests. Adult oviposition preference and larval performance of were positively related, so at least for undamaged (not induced) plants mother appears to know best
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