Protein Hydrogels with Reversibly Patterned Multidimensional Fluorescent Images for Information Storage

Area of Science:

• Biomaterials Science
• Soft Matter Physics
• Molecular Engineering

Background:

• Fluorescent polymeric hydrogels show promise for information storage in biomaterials and electronics.
• Protein-based hydrogels are of interest but their information storage potential is underexplored.

Purpose of the Study:

• To develop a protein-based hydrogel capable of reversible information storage.
• To explore light-controlled decoration and release of fluorescent proteins for data encoding.

Main Methods:

• Utilized the LOVTRAP system (LOV2 and ZDark1 proteins) for light-controlled protein manipulation.
• Developed strategies for reversible fluorescent pattern generation on a protein hydrogel.
• Implemented grayscale patterning for multi-dimensional fluorescent image creation.

Main Results:

• Demonstrated a novel protein hydrogel as a reversible information storage medium.
• Successfully generated fluorescent patterns, including quick response codes, using light control.
• Achieved increased storage capacity through grayscale and pseudo-colored multi-dimensional imaging.

Conclusions:

• Protein-based hydrogels offer a new platform for reversible information storage in soft, wet materials.
• This approach opens avenues for next-generation protein-based smart materials.
• Potential applications include advanced information storage and anti-counterfeit technologies.