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DNA-Based Boolean Logic Gates for Molecular Computation and Biosensing: A Critical Review.

Abinaya Srinivasan1, Hema Kesavan2, Umamaheswari Rajendran3

  • 1Department of Physics, AMET University, Kanathur, Chennai, Tamil Nadu, 603112, India.

Molecular Biotechnology
|June 1, 2026
PubMed
Summary

DNA logic gates offer powerful molecular computation for diagnostics and biosensing. Advances in DNA computing address challenges like signal leakage, paving the way for reliable molecular intelligence platforms.

Keywords:
BiosensingBoolean logic gatesDNA computingDiagnosticsMolecular computationPhotocaging

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Area of Science:

  • Molecular computation
  • Biotechnology
  • Bioelectronics

Background:

  • DNA-based Boolean logic gates are emerging as a powerful platform for molecular computation.
  • They offer advantages like massive parallelism, biocompatibility, energy efficiency, and programmability, surpassing silicon-based technologies.
  • Current applications span biomedical diagnostics, autonomous biosensing, and therapeutic regulation.

Purpose of the Study:

  • To review the advancements in DNA-based Boolean logic gates for molecular computation.
  • To highlight sophisticated designs, applications, and emerging solutions to key challenges.
  • To discuss the integration with AI, machine learning, and bioelectronics for hybrid systems.

Main Methods:

  • Review of sophisticated DNA logic gate designs.
  • Analysis of applications in diagnostics, biosensing, and therapeutics.
  • Exploration of emerging solutions for challenges like signal leakage and scalability.
  • Investigation of integration with AI, machine learning, and bioelectronics.

Main Results:

  • DNA computing enables operations beyond silicon-based technologies, with applications in diagnostics and biosensing.
  • Multi-layered architectures and neural network-like designs show practical potential.
  • Emerging solutions like photocaging and enzyme-mediated processing enhance reliability and scalability.
  • Integration with AI and bioelectronics creates hybrid systems for digital processing.

Conclusions:

  • DNA logic gates are transitioning from basic concepts to practical applications.
  • Overcoming challenges in signal leakage, stability, and scalability is crucial for adoption.
  • Standardization, reproducibility, and cost reduction are key for future progress.
  • DNA logic gates are foundational for developing molecular intelligence platforms.