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STWM: Sliding Time Window Method Driven by Enzymes for Image Information Access.

Yixuan Shi1, Shuang Cui2, Xin Liu2

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ACS Applied Materials & Interfaces
|October 15, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a programmable sliding time window method (STWM) using exonuclease III (Exo III) for precise temporal control in DNA molecular circuits. This breakthrough enables advanced molecular computation and image data processing.

Keywords:
DNA molecular circuitexonucleaseinformation accessmolecular signal processingtime window

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Synthetic Biology

Background:

  • Precise temporal regulation is crucial for DNA molecular circuits in biological information processing.
  • Incorporating time as a regulatory parameter for information access in molecular circuits remains a significant challenge.

Purpose of the Study:

  • To present a programmable sliding time window method (STWM) for temporally regulated molecular circuits.
  • To enable multivariable regulation of time windows for molecular signal processing.
  • To demonstrate applications in image data encoding and decoding.

Main Methods:

  • Utilized exonuclease III (Exo III) to construct a sliding time window mechanism.
  • Tuned apurinic/apyrimidinic (AP) site positions and enzyme/strand concentrations for temporal control.
  • Designed a DNA molecular circuit with integrated time window functionality.

Main Results:

  • Achieved multivariable regulation of time windows for molecular signal processing.
  • Successfully demonstrated the complete workflow of image data encoding and decoding.
  • Reconstructed a 4x4 image matrix using the developed DNA molecular circuit.

Conclusions:

  • The proposed STWM offers a reusable and tunable framework for molecular timing control.
  • This strategy opens new avenues for molecular computing, bioinformation processing, and intelligent biosensing.