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可变色形状记忆材料 被引量:1
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作者 钱茜茜 刘赛赛 +2 位作者 蒋璐 刘罡 武荣兰 《大学化学》 CAS 2020年第4期161-167,共7页
以聚乙烯醇和单宁酸为原料制备出了形状记忆水凝胶,以乙二胺四乙酸、二水合氯化铜、六水合氯化镁、氧化铝为原料制备出了无机热致变色材料,以结晶紫内酯、硼酸、十六醇为原料制备出了有机热致变色材料,并将形状记忆材料与热致变色材料结... 以聚乙烯醇和单宁酸为原料制备出了形状记忆水凝胶,以乙二胺四乙酸、二水合氯化铜、六水合氯化镁、氧化铝为原料制备出了无机热致变色材料,以结晶紫内酯、硼酸、十六醇为原料制备出了有机热致变色材料,并将形状记忆材料与热致变色材料结合,成功制备出了两种既能记忆形状又能变色的新型复合高分子材料。本实验原料简单易得,方法简便,并与本科阶段有机化学、无机化学、仪器分析、精细化学品化学等课程中所学习的自由基聚合反应、化学交联、络合反应等知识结合,可作为本科教学的一个综合实验,提高学生的动手能力,激发学生学习化学的兴趣和热情。 展开更多
关键词 聚乙烯醇 单宁酸 形状记忆 热致变色 综合实验
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Effectiveness and Controversy of Convalescent Plasma Therapy for Coronavirus Disease 2019 Patients
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作者 Zhanjun Shu Peipei Wu +5 位作者 qianqian qian Li Zhou Dandan Du Mengxuan Ding Tao Peng Ke Fang 《Infectious Diseases & Immunity》 2022年第1期49-54,共6页
Since the coronavirus disease 2019(COVID-19)began to spread,it remains pandemic worldwide.The European Medicines Agency’s human medicines committee and Food and Drug Administration have only granted a conditional mar... Since the coronavirus disease 2019(COVID-19)began to spread,it remains pandemic worldwide.The European Medicines Agency’s human medicines committee and Food and Drug Administration have only granted a conditional marketing authorization for remdesivir to treat COVID-19.It is essential to apply other valuable treatments.Convalescent plasma(CP),donated by persons who have recovered from COVID-19,is the cellular component of blood that contains specific antibodies.Therefore,to determine the feasibility of CP for COVID-19,the effectiveness and controversy are discussed in depth here.It is suggested that CP plays a certain role in the treatment of COVID-19.As a treatment,it may have its own indications and contraindications,which need to be further discussed.Meanwhile,it is critical to establish a standard procedure for treatment from CP collection,preservation,transport,to transfusion,and conduct some large sample randomized controlled trials to confirm the transfusion dosage,appropriate time,frequency,and actively prevent adverse outcomes that may occur. 展开更多
关键词 COVID-19 Controversy Convalescent plasma EFFECTIVENESS THERAPY
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