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Updated: May 8, 2025

Reliably Engineering and Controlling Stable Optogenetic Gene Circuits in Mammalian Cells

Reliably Engineering and Controlling Stable Optogenetic Gene Circuits in Mammalian Cells

Published on: July 6, 2021

Optogenetic Engineered Living Materials.

Varun Sai Tadimarri¹, Shrikrishnan Sankaran²

¹INM-Leibniz Institute for New Materials, Saarbrücken, Germany.

Methods in Molecular Biology (Clifton, N.J.)

|December 26, 2024

Summary

This summary is machine-generated.

Engineered living materials (ELM) combine hydrogels with optogenetically programmed bacteria. These smart materials can sense light and release drugs, offering new therapeutic solutions for chronic diseases.

Keywords:

Agarose Blue light Drug delivery E. coli Engineered living materials Living therapeutics

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Published on: August 4, 2021

Area of Science:

Materials Science
Synthetic Biology
Biotechnology

Background:

Engineered living materials (ELM) integrate living microorganisms with nonliving materials.
Optogenetics enables remote control of ELM functions using light stimuli.
Current ELMs offer potential for advanced therapeutic applications.

Purpose of the Study:

To describe methods for creating a light-sensing and drug-releasing ELM.
To utilize optogenetically engineered bacteria within a hydrogel matrix.
To explore ELMs for smart therapeutic solutions in chronic diseases.

Main Methods:

Genetically programming bacteria with stimulus-sensing modules for light detection.
Incorporating optogenetically engineered bacteria into a Pluronic F127-based hydrogel.
Developing a system for light-induced drug production and release from the ELM.

Main Results:

Successful creation of a simple ELM responsive to light stimuli.
Demonstration of light-controlled drug production and release by engineered bacteria.
Validation of the hydrogel-bacteria composite as a functional engineered living material.

Conclusions:

Engineered living materials offer a novel platform for smart therapeutics.
Optogenetics and hydrogel-based systems provide a viable approach for controllable drug delivery.
Further design variations are being explored to enhance ELM performance and safety for clinical applications.