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具有可控制形状的工程细菌微镜的可调光聚焦行为

Lynn M Sidor¹, Kathren P Sage¹, Michelle M Beaulieu²

¹Department of Biology, University of Rochester, Rochester, New York, 14627, USA.

bioRxiv : the preprint server for biology

|December 25, 2025

概括

研究人员将细菌细胞改造成新的形状,创造了先进的生物光子设备. 这些修改后的细菌微镜头为生物传感器和光纤中的应用提供了增强的光操纵.

科学领域:

生物光子学生物光子学
材料科学材料科学材料科学
微生物学微生物学

背景情况:

工程细菌细胞可以作为光学活性光子装置发挥作用.
聚酸涂层增强了细菌细胞的光操纵能力.
以前的方法仅限于杆状细菌微镜.

研究的目的:

为改进光子设备应用设计细菌细胞形状.
扩大生物工程光子设备的功能,超出杆状微镜头.

主要方法:

在大肠杆菌中过度表达bolA和sulA基因.
用A22药物治疗大肠杆菌以改变细胞形态.
使用酸盐在多酸盐层中封装工程细菌细胞.

主要成果:

细菌细胞成功地被设计成球形和丝状的形状.
聚酸盐封装的球形细胞表现出增强和对称的光散射.
聚酸盐封装的丝状细胞表现出类似光纤的光导特性.

结论:

对细菌细胞大小和形状的控制是可以实现的.
工程细菌细胞为开发新型生物光子设备提供了一个多功能平台.
这一进步为纳米光子波导,球形微镜头阵列和先进的生物传感器铺平了道路.

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