“头足类动物能够通过调控皮肤的乳突（皮肤上可伸缩的微小突起）和色素细胞改变自身纹理和颜色，这是它们实现惊人伪装能力的关键。”该论文的共同通讯作者、斯坦福大学博士生西达尔特·多希在接受本报记者采访时表示，研究团队一直希望能在工程材料上复现这一精妙的自然机制。一次偶然的发现让他们找到了突破口。“我们发现，一块曾在扫描电子显微镜下观察过的PEDOT:PSS（一种导电聚合物）样品，其被电子束照射的区域，溶胀行为（指材料接触溶剂时因溶剂分子渗透而发生的膨胀现象）与未照射区域截然不同。受到电子束照射的区域，其结构变得紧致，遇水后的膨胀能力被大大抑制；而未照射的区域则能自由吸水大幅隆起。”多希说。
上任後，哈梅內伊成為戰時領袖。
植物组培架上，中药材幼苗泛着嫩绿的光泽。来自湖南农业大学的曾建国教授团队正利用基因芯片和高通量测序技术，破解中药材的基因密码。“中药材品质与基因、环境的相互关系，长期缺乏系统研究。”曾建国介绍，依托岳麓山实验室，湖南与国家中医药管理局共建国家中药材种质资源库，助力从“经验种药”转向“精准育药”。，详情可参考服务器推荐
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