Jacek Siódmiak

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In this study, a comprehensive view of a model crystal formation in a complex fluctuating medium is presented. The model incorporates Gaus-sian curvature effects at the crystal boundary as well as the possibility for super-diffusive motion near the crystal surface. A special emphasis is put on the finite-size effect of the building blocks (macroions, or the(More)
A computer study of the prediction of the protein crystal's shape and polymorphism of crystal's structures within the limits resulting from the exploration of the Miyazawa-Jernigan matrix is presented. In this study, a coarse-graining procedure was applied to prepare a two-dimensional growth unit, where instead of full atom representation of the protein a(More)
Phosphorescence spectra at 103 K and delayed fluorescence and phosphorescence spectra at 296 K of flavomononucleotide (FMN) stabilized by poly(vinyl alcohol) PVA matrix have been measured. At 103 K the FMN monomer and excimer exhibit phosphorescence bands at about 620 and 640 nm, respectively. At 295 K the delayed fluorescence and phosphorescence of the FMN(More)
We propose that the main mechanism controlling the selection rule of model (dis)orderly protein formations, such as non-Kossel crystal growth and aggregation of lysozyme from aqueous solution, is an ion-channeling filter having flicker-noise properties. This filter is originated at the interfaces between growing solidlike object and its external liquid-type(More)
The (dis)orderly aggregation of lysozyme is an intense field of research nowadays since such a model system contains all necessary paradigms to solve, preventing this way from the as-yet applied trial-and-error method for obtaining the desired crystalline and other forms of lysozyme aggregates. The notions of nucleation-growth phase transformation change,(More)
A superdiffusive random-walk action in the depletion zone around a growing protein crystal is considered. It stands for a dynamic boundary condition of the growth process and competes steadily with a quasistatic, curvature-involving (thermodynamic) free boundary condition, both of them contributing to interpret the (mainly late-stage) growth process in(More)
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