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科学家成功用激光控制果蝇心脏 - 站长搜索
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科学家成功用激光控制果蝇心脏

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2015-10-12 20:48:08 转载来源: 网络整理/侵权必删

麻醉的果蝇一动不动的躺在显微镜载片上,科学家对着它的腹部发射了蓝色激光。激光没有伤害果蝇,激光脉冲以每秒10次的节奏发射,而果蝇的心脏也以每秒10次的速度精确同步

麻醉的果蝇一动不动的躺在显微镜载片上,科学家对着它的腹部发射了蓝色激光。激光没有伤害果蝇,激光脉冲以每秒10次的节奏发射,而果蝇的心脏也以每秒10次的速度精确同步。研究人员在《Science Advances》期刊上报告了他们发明的光学起搏器。

传统的起搏器是基于心脏是一个发电器官这一事实,电脉动流过心肌细胞,触发了心跳,心脏的收缩将血输送到各处器官。植入式的电子起搏器使用电极向心脏组织稳定传输电脉冲,帮助有问题的心脏维持固定的节奏。

光学起搏器利用的是光遗传学(Optogenetics)技术,使用激光脉冲触发心肌细胞收缩。领导这项研究的是Lehigh大学的助理教授Chao Zhou。他表示将这项技术运用于人类还有很多挑战需要解决。

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标签: 科学家 功用 激光 控制 果蝇 心脏


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