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在适当的条件下分子开关将输入的信息转换为输出信号,利用这一特点,可在分子体系根据二进位布尔逻辑规则实现信号转换。目前,用化学体系进行基本的布尔逻辑功能执行(PASS、YES、NOT、AND、NAND、OR、NOR、XNOR和INH)都已成为可能。在此基础上,逻辑门的整合与编程,以及更进一步的复杂分子运算开始受到人们的关注。迄今为止,以高灵敏性的荧光输出信号为主,人们在分子水平上设计实现了多种复杂的逻辑电路,包括组合逻辑电路和时序逻辑电路等,并开始涉及信息处理的安全平台设计。本文主要介绍了近年来用分子荧光开关体系模拟数字逻辑电路过程中所取得的最新进展,对分子逻辑电路研究的热点和问题进行了展望。
Under appropriate conditions, the molecular switch converts the input information into an output signal. With this feature, the signal conversion can be realized in the molecular system according to the binary Boolean logic rules. At present, it has become possible to perform basic Boolean logic functions (PASS, YES, NOT, AND, NAND, OR, NOR, XNOR and INH) with chemical systems. On this basis, the logic gate integration and programming, as well as further complex molecular computing began to receive the attention of people. So far, with highly sensitive fluorescent output signals, people have designed and implemented many complex logic circuits at the molecular level, including combinational logic circuits and sequential logic circuits, and started the design of a secure platform involving information processing. In this paper, we introduce the latest progress in the simulation of digital logic circuits with molecular fluorescence switching system in recent years, and prospect the hot spots and problems of molecular logic circuits.