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Updated: Aug 4, 2026
11:23
A Multilayer Microfluidic Platform for the Conduction of Prolonged Cell-Free Gene Expression
Published on: October 6, 2019
Toggles and oscillators: new genetic circuit designs
E M Judd1, M T Laub, H H McAdams
1Department of Applied Physics, Stanford University.
Summary
Scientists designed and built novel biological circuits using genetic engineering and mathematical modeling. While successful, observed behaviors deviate from predictions, offering new insights into genetic networks.
Area of Science:
- Synthetic biology
- Systems biology
- Genetic engineering
Background:
- Recent advances in synthetic biology have enabled the de novo design of biological circuits.
- Mathematical modeling is increasingly used to guide the design of these circuits.
Purpose of the Study:
- To report the de novo design and construction of functioning biological circuits.
- To assess the predictive power of mathematical models in circuit design.
- To highlight the potential for new insights from discrepancies between predicted and observed circuit behavior.
Main Methods:
- Design of a genetic toggle switch (Gardner et al.).
- Construction of an oscillating genetic circuit (Elowitz and Leibler).
- Utilized mathematical models for circuit design and prediction.
Main Results:
- Successfully designed and constructed functional biological circuits.
- Observed behaviors of the circuits partially matched model predictions.
- Discrepancies between predicted and observed behaviors were identified.
Conclusions:
- The study demonstrates progress in unifying theory and experiment in genetic circuit research.
- Further investigation of unpredicted behaviors is crucial for advancing understanding of genetic networks.
- The findings pave the way for more sophisticated biological circuit design and analysis.
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