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Updated: May 14, 2026

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles
Published on: May 8, 2015
Denaturation-resistant bifunctional colloidal superstructures assembled via the proteinaceous barnase-barstar
Ulkar F Aghayeva1, Maxim P Nikitin, Sergey V Lukash
1Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 16/10 Miklukho-Maklaya Street, Moscow 117997, Russia.
We developed highly durable protein-assisted nanoparticle self-assembly systems. These robust colloidal superstructures withstand extreme conditions, unlike most protein-based systems, enabling advanced theranostic applications.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Protein Engineering
Background:
- Biomolecule-mediated nanoparticle self-assembly is crucial for advanced materials.
- Existing systems often lack stability under harsh conditions, limiting applications.
- High stability is essential for self-assembled multifunctional theranostic agents.
Purpose of the Study:
- To develop and evaluate highly durable protein-assisted nanoparticle self-assembly systems.
- To assess the resistance of these systems to extreme denaturing conditions.
- To compare the performance of different biomolecular pairs in nanoparticle conjugation and assembly.
Main Methods:
- Utilized protein-assisted nanoparticle self-assembly.
- Tested system durability under extreme conditions (chaotropic agents, high temperature).
- Compared barnase-barstar (BBS), streptavidin-biotin, antibody-antigen, and protein A-immunoglobulin systems.
Main Results:
- Achieved extraordinarily high durability in protein-assisted nanoparticle self-assembly systems.
- Developed bifunctional colloidal superstructures resistant to extreme denaturing conditions.
- Barnase-barstar system demonstrated notable resistance and genetic engineering advantages.
- Preassembled structures were resistant, but biomolecular pair assembly efficiency varied under stress.
Conclusions:
- Protein-assisted nanoparticle self-assembly can yield highly stable structures.
- The barnase-barstar system offers a robust platform for creating durable, genetically engineered nanostructures.
- These findings advance the development of stable theranostic agents and other robust nanomaterials.
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