“时-空耦合”活细胞合成量子点

贾剑红; 杨玲玲; 刘安安; 庞代文

doi:10.12211/2096-8280.2021-059

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“时-空耦合”活细胞合成量子点

特约评述 | 更新时间：2025-03-20

- “时-空耦合”活细胞合成量子点
  封面论文
- Space-time-coupled live-cell synthesis of quantum dots
- 合成生物学 2022年3卷第2期页码：385-398
- 作者机构：
  
  1.南开大学药物化学生物学国家重点实验室，化学学院分析科学研究中心，天津市生物传感及分子识别重点实验室，天津　300071
  2.武汉大学高等研究院，化学与分子科学学院，湖北　武汉　430072
- 作者简介：
  
  [ "贾剑红（1994—），女，博士研究生。研究方向为纳米材料生物合成。E-mail：1076215263@qq.com" ]
  [ "杨玲玲（1992—），女，博士研究生。研究方向为纳米生物医学分析。E-mail：doublelengyang@163.com" ]
  [ "庞代文（1961—），男，教授，博士生导师。研究方向为生物医学分析化学、纳米生物技术、纳米光电显示技术等。E-mail：dwpang@whu.edu.cn" ]
- 基金信息：
  
  国家自然科学基金(91859123);国家重点研发计划(2019YFA0210103);中央高校基本科研业务费专项(63201024);天津市自然科学基金(19JCQNJC02400)
- DOI：10.12211/2096-8280.2021-059
  中图分类号： Q 591.1
- 收稿：2021-05-08，
  
  修回：2021-05-29，
  
  纸质出版：2022-04-30
- 稿件说明：
移动端阅览
贾剑红，杨玲玲，刘安安，庞代文. “时-空耦合”活细胞合成量子点［J］. 合成生物学， 2022， 3（2）： 385-398

JIA Jianhong， YANG Lingling， LIU An’an， PANG Daiwen. Space-time-coupled live-cell synthesis of quantum dots［J］. Synthetic Biology Journal， 2022， 3（2）： 385-398
贾剑红，杨玲玲，刘安安，庞代文. “时-空耦合”活细胞合成量子点［J］. 合成生物学， 2022， 3（2）： 385-398 DOI： 10.12211/2096-8280.2021-059.

JIA Jianhong， YANG Lingling， LIU An’an， PANG Daiwen. Space-time-coupled live-cell synthesis of quantum dots［J］. Synthetic Biology Journal， 2022， 3（2）： 385-398 DOI： 10.12211/2096-8280.2021-059.

摘要

细胞是生命活动的基本单位。随着材料学、化学和生物学等多学科交叉日益加深，借助活细胞内代谢途径合成无机纳米材料的研究受到广泛关注，同时也拓展了合成生物学的研究领域。然而，活细胞合成无机纳米材料主要以胞内生物大分子为模板，且依赖单一生化反应途径，产物的尺寸、形貌和性质均难以人为调控。自2009年，本课题组通过人为设计、巧妙耦合活细胞内的硒代谢途径和重金属离子解毒途径，发展出“时-空耦合”活细胞合成策略，在真菌、细菌和哺乳动物细胞内原位合成了不同组成、尺寸和性能的无机半导体荧光纳晶（量子点）。在从物质和能量代谢的角度研究活细胞合成机理的基础上，将活细胞合成体系简化，设计构建了无细胞的准生物体系，成功合成了多种纳米材料，同时也验证了“时-空耦合”策略的正确性。本文将总结评述“时-空耦合”活细胞合成量子点的策略、机理及其在生物标记、生物成像和病原微生物与重金属离子检测等方面的应用，并简要介绍准生物体系。同时，将阐明目前活细胞合成策略面临的挑战。随着合成生物学的发展，通过“时-空耦合”活细胞合成策略可以将无机功能材料“自然地”融入生物体系，赋予生物体系超常的能力，拓展合成生物学。

Abstract

As fundamental units of structure and function in all living organisms

cells grow and proliferate through intracellular metabolism. The metabolism is characterized by catabolism

through which cells break down complex molecules to produce energy and reducing power

and anabolism

through which cells use energy and reducing power to construct complex molecules for biological functions. Due to the develop

ment of interdisciplinary research in materials science

chemistry and biology

many new ideas and concepts inspired by biological systems have been proposed to synthesize various inorganic nanomaterials. Some bacteria

such as magnetotactic bacteria

have evolved to be able to synthesize inorganic nanomaterials. On the other hand

some inorganic-based skeletal structures can be synthesized by harnessing specific biomolecules as templates and the metabolic functions of live cells

which is well known as biomineralization. However

metabolic pathways in live cells are extremely complicated

and it is difficult to elaborately trigger and simultaneously control the specific metabolic pathways for designed synthesis. To overcome this challenge

the “space-time coupling” strategy for controllable synthesis of quantum dots in live cells has been developed since 2009. By delicately coupling of intracellular selenite reduction metabolism and detoxification of heavy metal ions

quantum dots with different components and tunable sizes can be synthesized. This review focuses on the synthetic regulation

mechanism and biological applications of quantum dots

in situ

synthesized in live cells by the “space-time coupling” strategy. Subsequently

cell-free quasi-biological systems that are inspired by the live-cell synthesis and constructed by mimetic intracellular biochemical reaction pathways are briefly presented. Finally

challenges and prospects of this strategy are discussed. In the future

with more in-depth research on metabolomics

we believe that in addition to quantum dots

various inorganic nanomaterials with hierarchical structures and multifunction properties can be produced in live cells on purpose by elaborately coupling multiple metabolic pathways

which provides a new insight to synthetic biology.

关键词

Keywords

references

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