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Related Experiment Video

Updated: May 7, 2026

Creating Highly Specific Chemically Induced Protein Dimerization Systems by Stepwise Phage Selection of a Combinatorial Single-Domain Antibody Library

Creating Highly Specific Chemically Induced Protein Dimerization Systems by Stepwise Phage Selection of a Combinatorial Single-Domain Antibody Library

Published on: January 14, 2020

Authorizing multiple chemical passwords by a combinatorial molecular keypad lock.

Bhimsen Rout¹, Petr Milko, Mark A Iron

¹Departments of †Organic Chemistry and ‡Chemical Research Support, Weizmann Institute of Science , Rehovot 76100, Israel.

Journal of the American Chemical Society

|October 4, 2013

Summary

A novel fluorescent molecular sensor acts as a sophisticated security system. This sensor can process various chemical inputs, enabling the creation of highly secure, unbreakable molecular combination locks.

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Area of Science:

Chemistry
Molecular Engineering
Biotechnology

Background:

Molecular sensors are crucial for detecting and analyzing chemical substances.
Developing secure systems at the molecular level presents significant challenges.
Existing security systems lack the adaptability and complexity of biological systems.

Purpose of the Study:

To demonstrate a combinatorial fluorescent molecular sensor as a high-efficiency molecular security system.
To showcase the capability of pattern-generating molecules in processing diverse chemical inputs.
To explore the potential for creating unbreakable combination locks at the molecular scale.

Main Methods:

Utilizing a pattern-generating molecule to process chemical inputs.
Discriminating among different concentrations of chemical inputs.
Forming multivalent and kinetically stable complexes for signal generation.

Main Results:

The molecular sensor successfully processed diverse sets of chemical inputs.
The system demonstrated discrimination capabilities based on chemical concentrations.
Multivalent and kinetically stable complexes were formed, indicating successful pattern recognition.

Conclusions:

Combinatorial fluorescent molecular sensors offer a powerful tool for molecular security.
The demonstrated system can process a wide range of chemical "passwords" of varying lengths.
This approach holds significant potential for developing unbreakable molecular combination locks.