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Updated: May 1, 2026
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Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
Published on: June 20, 2019
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Nucleation-conversion-polymerization reactions of biological macromolecules with prenucleation clusters
Gonzalo A Garcia1, Samuel I A Cohen1, Christopher M Dobson1
1Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom.
Summary
Biomolecular filament formation involves new prenucleation clusters, not just classical nucleation. This generalized theory explains complex growth pathways and their timescales for better understanding biopolymer assembly.
Area of Science:
- Biochemistry
- Biophysics
- Materials Science
Background:
- Filamentous self-assembly of biomolecules (peptides, proteins) conventionally follows nucleated polymerization.
- Classical nucleation theory omits metastable intermediate species observed in recent experimental analyses.
- These intermediate species form prenucleation clusters, crucial for generating growth-competent nuclei.
Purpose of the Study:
- To generalize classical nucleation theory by incorporating prenucleation clusters.
- To provide a quantitative classification for nucleation-conversion-polymerization reactions.
- To delineate characteristic timescales governing biopolymer growth phenomena.
Main Methods:
- Analytical approach to generalize classical nucleation theory.
- Inclusion of prenucleation cluster formation in theoretical models.
- Construction of a phase diagram and derivation of analytical predictions for experimental observables.
Main Results:
- A generalized framework for nucleated polymerization including prenucleation clusters.
- Quantitative classification of nucleation-conversion-polymerization reaction behaviors.
- Identification of characteristic timescales that dictate biopolymer growth dynamics.
Conclusions:
- Prenucleation clusters are essential intermediates in biomolecular filament formation.
- The generalized theory accurately describes complex nucleation pathways.
- Understanding these timescales is key to controlling biopolymer self-assembly.
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