Random Number Generation by a Two-Dimensional Crystal of Protein Molecules

We discuss 2D and binary self-assemblies of protein molecules using apo-ferritin and holo-ferritin, which have identical outer-shell structures but different inner structures. The assemblies do not show any phase separation but form 2D monomolecular-layer crystals. Statistical analyses showed a rand...

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Bibliographic Details
Published in:Langmuir 2009-04, Vol.25 (8), p.4293-4297
Main Authors: Ikezoe, Yasuhiro, Kim, Song-Ju, Yamashita, Ichiro, Hara, Masahiko
Format: Article
Language:English
Subjects:
Algorithms
Apoferritins - chemistry
Chemistry
Colloidal state and disperse state
Computer Simulation
Crystallization
Exact sciences and technology
Ferritins - chemistry
General and physical chemistry
Mathematics
Microscopy, Electron, Scanning
Models, Statistical
Models, Theoretical
Monte Carlo Method
Probability
Proteins - chemistry
Surface physical chemistry
Surface Properties
Water
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Summary:We discuss 2D and binary self-assemblies of protein molecules using apo-ferritin and holo-ferritin, which have identical outer-shell structures but different inner structures. The assemblies do not show any phase separation but form 2D monomolecular-layer crystals. Statistical analyses showed a random molecular distribution in the crystal where the molar ratio was conserved as it was in the solution. This molecular pattern is readily prepared, but it is neither reproducible nor predictable and hence can be used as a nanometer-scale cryptographic device or an identification tag.
ISSN:0743-7463
1520-5827
DOI:10.1021/la9000413