Synthetic biology: engineering Escherichia coli to see light

We have designed a bacterial system that is switched between different states by red light. The system consists of a synthetic sensor kinase that allows a lawn of bacteria to function as a biological film, such that the projection of a pattern of light on to the bacteria produces a high-definition (about 100 megapixels per square inch), two-dimensional chemical image. This spatial control of bacterial gene expression could be used to 'print' complex biological materials, for example, and to investigate signalling pathways through precise spatial and temporal control of their phosphorylation steps.     

矩阵多项式的综合除法及其应用

给出矩阵多项式的综合除法,利用微分代数的观点,将其应用于一类常系数偏微分方程化为无穷维Hamilton系统的问题中.再结合标准型算法,将其应用于构造一类偏微分方程组通解的问题中.     

关于多项式综合除法的推广应用

多项式是现代数学最重要的概念和工具之一，所谓多项式长除法就是多项式与多项式做类似于数与数的除法，其在求多项式因式分解、求多项式切线、求积分、求导、求解微分方程及线性代数中的求逆等问题中有着广泛应用。长除法的计算虽然不需要任何技巧，但其计算过程非常冗长。为了简化多项式长除法的运算过程，使其在实际运用中更容易操作，本文在多项式综合除法的基础上，对多项式长除法进行探讨，并推出一种多项式除法，称为短除法。     

量子可逆逻辑电路最小代价综合算法

采用位运算构造了一个完备的Hash函数,提出了基于Hash表的新型量子可逆逻辑电路综合算法.利用该算法可对多种量子门采用任意量子代价标准,以较高的效率生成最优的量子可逆逻辑电路.按照国际同行认可的三变量可逆函数测试标准,该算法不仅能够生成全部最优电路,而且运行速度远远超过其他算法.实验结果表明,该算法在同等计算环境下,以目前最好结果为基准,按最小量子代价标准,综合电路的平均速度是最好结果的472.5倍.     

Synthetic biology: From the first synthetic cell to see its current situation and future development

Synthetic biology is an emerging field,which,since its birth,has shown great value and potential in many fields including medicine,energy,environment and agriculture.It is also important for the study of the origin and evolution of life.Since the publication of the first synthetic cell in May,2010,synthetic biology again attracts high attention and leads to extensive discussions all over the world.There have been a number of researches and achievements on synthetic biology in the United States and European countries.While in China,so far there is no systematic research on synthetic biology.In order to promote the development of this new discipline in China,we organized this review to systematically introduce the concept and research content of synthetic biology,summarize the achievements,and investigate the current situation in both China and abroad.We also analyzed the opportunities and challenges in synthetic biology,and looked forward to the future development of synthetic biology,especially its future development in China.