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Updated: Apr 28, 2026

Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry

Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry

Published on: April 8, 2020

Exercises in molecular computing.

Milan N Stojanovic¹, Darko Stefanovic, Sergei Rudchenko

¹Departments of Medicine, Biomedical Engineering, and Systems Biology, Columbia University , New York, New York 10032, United States.

Accounts of Chemical Research

|May 31, 2014

Summary

Researchers developed molecular logic circuits using DNA enzymes for advanced computation. These biomolecular computing systems offer a novel approach to sensing and information processing, with potential theranostic applications.

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Area of Science:

Biomolecular Engineering
Molecular Computing
Synthetic Biology

Background:

Electronic digital logic has revolutionized computing, but molecular-scale computation remains a significant scientific challenge.
Humans, as complex molecular assemblies, demonstrate inherent computational capabilities, inspiring the development of synthetic molecular systems.
Molecular computing involves designing molecules that respond to specific inputs (e.g., analytes) with defined outputs.

Purpose of the Study:

To review the development and application of molecular logic circuits engineered in the laboratory.
To demonstrate the construction of biomolecular logic gates from catalytic nucleic acids.
To explore the potential of these molecular circuits for intelligent theranostic applications.

Main Methods:

Designed molecular logic circuits using deoxyribozymes (DNA enzymes) as reporting elements and stem-loops as input detection elements.
Engineered deoxyribozymes where stem-loop structures modulate substrate binding and enzymatic activity based on input oligonucleotides.
Integrated these logic gates into larger circuits to achieve complex logical and temporal information processing.

Main Results:

Successfully created modular logic gates by combining deoxyribozymes with stem-loop input elements.
Demonstrated that input oligonucleotides can induce conformational changes to control deoxyribozyme activity and signal output (e.g., fluorescence).
Constructed large-scale circuits exhibiting intricate input-output relationships and temporal dynamics.

Conclusions:

The developed molecular logic circuits provide a versatile platform for sophisticated biomolecular computation.
These systems effectively integrate multiple molecular inputs to produce specific outputs, mimicking sensor functionalities.
The research paves the way for intelligent theranostic systems, with initial experiments targeting cell surface marker detection on lymphocytes.