We propose a method for implementing nanoscale optical logic circuits via single-step Förster resonance energy transfer (FRET). Use of single-step FRET enabled circuits with simple design and high expandability. Two kinds of FRET gates, a YES gate and a NOT gate, were used to modulate fluorescence output signals based on light inputs. Various logic circuits could be implemented by connecting FRET gates on a DNA structure. The experimental results demonstrated that FRET gates for two kinds of input lights were constructed, and that logic circuits executing the AND and OR operations produced fluorescence signals as outputs.

中文翻译：

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单步 FRET 纳米级光学逻辑电路

我们提出了一种通过单步福斯特共振能量转移 (FRET) 实现纳米级光学逻辑电路的方法。使用具有简单设计和高可扩展性的单步 FRET 使能电路。两种 FRET 门，YES 门和 NOT 门，用于根据光输入调制荧光输出信号。通过在 DNA 结构上连接 FRET 门，可以实现各种逻辑电路。实验结果表明，构建了两种输入光的FRET门，执行AND和OR运算的逻辑电路产生荧光信号作为输出。