Adsorption-Freezing Transition for Random Heteropolymers near Disordered 2D Manifolds due to {open_quote}{open_quote}Pattern Matching{close_quote}{close_quote}

Journal Article · Tue Oct 01 04:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.3157· OSTI ID:388356

Srebnik, S; Chakraborty, A K ^[1]; Shakhnovich, E I ^[2]

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1. Department of Chemical Engineering, University of California, Berkeley, California 94720 (United States)
2. Department of Chemistry, Harvard University, Cambridge, Massachusetts 02138 (United States)

We study the simplest model for random heteropolymers near chemically disordered surfaces, and predict a new phenomenon that may have implications for pattern recognition applications. As the strength of surface fluctuations increases a smooth adsorption transition occurs first, with a multitude of chain conformations being sampled. More interestingly, beyond a larger threshold value of the strength of surface fluctuations, a sharp second adsorption transition is observed that is accompanied by the polymer freezing into a few dominant conformations that match the pattern of the surface fluctuations. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 388356
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADSORPTION
CONFORMATIONAL CHANGES
FLUCTUATIONS
FREEZING
PHASE TRANSFORMATIONS
POLYMERS
RANDOMNESS
SURFACES