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    • 4. 发明申请
    • ANALOG AND MIXED-SIGNAL COMPUTATION AND CIRCUITS IN LIVING CELLS
    • 模拟和混合信号计算和电路在生活细胞
    • US20150087055A1
    • 2015-03-26
    • US14391817
    • 2013-04-12
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    • Rahul SarpeshkarTimothy Kuan-Ta LuRamez DanialJacob Rosenblum Rubens
    • G06N3/00
    • G06N3/002B82Y10/00
    • Provided herein are molecular analog gene circuits that exploit positive and negative feedback to implement logarithmically linear sensing, addition, subtraction, and scaling thus enabling multiplicative, ratiometric, and power-law computations. The circuits exhibit Weber's Law behavior as in natural biological systems, operate over a wide dynamic range of up to four orders of magnitude, and can be architected to have tunable transfer functions. The molecular circuits described herein can be composed together to implement higher-order functions that are well-described by both intricate biochemical models and by simple mathematical functions. The molecular circuits described herein enable logarithmically linear analog computation within in-vitro and in-vivo systems with a broad class of molecules, all of which obey the Boltzmann exponential equations of thermodynamics that govern molecular association, attenuation, transformation, and degradation.
    • 本文提供了分子模拟基因电路,其利用正反馈来实现对数线性感测,加法,减法和缩放,从而实现乘法,比例和幂律计算。 电路表现出韦伯定律的行为,如在自然生物系统中,在多达四个数量级的宽动态范围内运行,并且可以被设计为具有可调谐的传递函数。 本文描述的分子电路可以组合在一起以实现由复杂的生物化学模型和简单的数学函数所描述的高阶函数。 本文描述的分子电路能够在具有广泛分子类型的体外和体内系统中进行对数线性模拟计算,所有这些分子都遵守支配分子缔合,衰减,转化和降解的热力学的Boltzmann指数方程。