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仿生“彩虹色套装”点亮分子多彩世界 - 站长搜索
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仿生“彩虹色套装”点亮分子多彩世界

趣科技 2020-07-14 09:51:07 转载来源: 科技日报

科技日报讯 (记者陈曦)多色系荧光蛋白,被广泛应用于分子世界的精准动态成像。日前,天津大学化工学院齐崴教授、王跃飞博士团队在新型仿生荧光多肽的研究中取得新进展

科技日报讯 (记者陈曦)多色系荧光蛋白,被广泛应用于分子世界的精准动态成像。日前,天津大学化工学院齐崴教授、王跃飞博士团队在新型仿生荧光多肽的研究中取得新进展。其研发的“彩虹色仿生荧光多肽纳米颗粒”,可作为天然绿色荧光蛋白(GFP)的潜在替代物。此项研究工作在线发表于《美国化学会应用材料与界面》。

海洋生物水母中的GFP是一种能够发射绿色荧光的生物分子,著名华裔科学家钱永健教授因对GFP的定向改造研究,被授予2008年诺贝尔化学奖。其开发的多色系荧光蛋白,被广泛应用于生命体系中不同尺度精细结构的精准动态成像。

天津大学化工学院齐崴、王跃飞团队近年来开展新型仿生荧光多肽的研究工作,并将其成功应用于药物递送、分子示踪、生物成像与病毒检测等生物医学领域。

近期,课题组开发了一种基于多色系多肽荧光纳米颗粒的“颜色工具箱”,可作为潜在的GFP替代物。研究团队设计了12种含有苯基丙氨酸、酪氨酸、色氨酸或组氨酸的短肽,通过在N端添加疏水性二茂铁基团,使得多肽分子组装成球形荧光纳米颗粒,改变多肽分子序列后,肽基纳米颗粒能够发出不同颜色的荧光,覆盖红、橙、黄、绿、蓝在内的整个可见光区域颜色,被命名为“彩虹色套装”。特别是在生理条件下,仿生荧光多肽展现出良好的生物活性、生物相容性、光稳定性和靶向特性,并且使用简便、成本低廉,在生物成像与检测领域具有很好的应用前景。

标签: 仿生 彩虹色套装 点亮 分子 多彩 世界


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