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Self-Organization of Iron Sulfide Nanoparticles into Complex Multicompartment Supraparticles
E Sumeyra Turali-Emre1,2, Ahmet E Emre1,2, Drew A Vecchio2,3
1Biomedical Engineering Department, University of Michigan, Ann Arbor, MI, 48109, USA.
Advanced Materials (Deerfield Beach, Fla.)
|March 25, 2023
Summary
Researchers created biomimetic multicompartment supraparticles (mSPs) from iron disulfide nanoparticles. These mSPs can encapsulate DNA, enhancing its temperature stability for bioapplications.
Area of Science:
- Materials Science
- Nanotechnology
- Biomimetic Engineering
Background:
- Self-assembled compartments are fundamental to life, offering protection and function.
- Synthetic inorganic nanoparticles (NPs) offer potential for biomimetic functional particles.
- Developing novel delivery vehicles for biological cargo is crucial for biotechnological processes.
Purpose of the Study:
- To develop synthetic inorganic nanoparticles that self-assemble into functional multicompartment supraparticles (mSPs).
- To investigate the encapsulation capabilities and cargo protection properties of these novel mSPs.
- To demonstrate the potential of mSPs for biomedical applications, specifically nucleic acid delivery.
Main Methods:
- Self-assembly of iron disulfide (FeS2) NPs stabilized by l-cysteine.
- Characterization of NP assembly into concave and closed multicompartment supraparticles (mSPs).
- Encapsulation of DNA cargo and assessment of temperature stability and cellular transfection efficacy.
Main Results:
- FeS2 NPs self-assembled into ≈75 nm mSPs with ≈340 interconnected compartments (≈5 nm each).
- mSPs demonstrated successful encapsulation of DNA cargo.
- Encapsulated DNA exhibited enhanced temperature stability compared to traditional delivery vehicles.
- mSPs facilitated DNA transfection in mammalian cells.
Conclusions:
- Biomimetic mSPs can be synthesized from inorganic NPs, mimicking natural compartmentalization.
- These mSPs serve as effective carriers for biological cargo like DNA.
- The developed mSPs offer enhanced cargo stability and potential for diverse bioapplications, including gene delivery.
Keywords:
artificial virusesbiomimetic particlescellular organellescompartmentalizationinorganic nanoparticlesself-assemblysupraparticlesMore Related Videos
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