Cytoprotective Metal-Phenolic Network Sporulation to Modulate Microalgal Mobility and Division.

Area of Science:

• Materials Science
• Biotechnology
• Synthetic Biology

Background:

• Synthetic cell exoskeletons offer novel ways to control cell behavior and introduce new functions.
• Mimicking natural cellular processes like sporulation is a key goal in synthetic biology.

Purpose of the Study:

• To develop a facile strategy for artificial sporulation of microalgae using responsive metal-phenolic networks (MPNs).
• To enable on-demand germination and locomotion of microalgae through engineered exoskeletons.
• To impart enhanced environmental stress resistance to microalgae.

Main Methods:

• Deposition of tunable metal-phenolic networks (MPNs) onto microalgae surfaces via one-step coordination.
• Utilizing pH or chemical stimuli for controlled disassembly of MPN coatings.
• Assessing cell viability, photosynthetic properties, and stress resistance post-coating and germination.

Main Results:

• Successful creation of MPN-coated microalgae without compromising cell viability or photosynthesis.
• On-demand germination of microalgae within 1 minute upon stimulus-induced MPN disassembly.
• Acquired resistance to environmental stresses such as metal ions and antibiotics, similar to natural sporulation.

Conclusions:

• The developed MPN strategy effectively mimics microalgal sporulation, offering control over cell dormancy and revival.
• This approach provides a synthetic method for creating hybrid microorganisms with regulated life cycles and enhanced resilience.
• The technology holds potential for designing advanced biomaterials and engineered cellular systems.