Chemical waves and pattern formation in the 1,2-dipalmitoyl-sn-glycero-3-phosphocholine/water lamellar system
Articolo
Data di Pubblicazione:
2004
Citazione:
Chemical waves and pattern formation in the 1,2-dipalmitoyl-sn-glycero-3-phosphocholine/water lamellar system / Magnani, A., Marchettini, N., Ristori, S., Rossi, C., Rossi, F., Rustici, M., Spalla, O., Tiezzi, E.. - In: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. - ISSN 0002-7863. - 126:(2004), pp. 11406-11407. [10.1021/ja047030c]
Abstract:
In this work, we studied
a Belousov Zhabotinsky (BZ) reaction, carried out in the anisotropic environment of the
1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC)/water binary
system, that presents layered aqueous domains separated by lipid bilayers.
When the system reached 25% w/w of lipid content, inwardly
rotating spirals and spiral-like structures coexisted
with striped standing waves.
We demonstrated that peculiar patterns, first
discovered in AOT microemulsions were also formed in layered
water domains. Thus, we showed that these structures are not
exclusive of spherical droplets. In our case, the coupling mechanism
between different aqueous compartments, which provide the
observation of patterns at a macroscopic scale length, that is,
centimeters, is likely due to membrane defects and permeability of some intermediates. The system we investigated has some unique features, being the
first one that really represents the model for a biological structure.
a Belousov Zhabotinsky (BZ) reaction, carried out in the anisotropic environment of the
1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC)/water binary
system, that presents layered aqueous domains separated by lipid bilayers.
When the system reached 25% w/w of lipid content, inwardly
rotating spirals and spiral-like structures coexisted
with striped standing waves.
We demonstrated that peculiar patterns, first
discovered in AOT microemulsions were also formed in layered
water domains. Thus, we showed that these structures are not
exclusive of spherical droplets. In our case, the coupling mechanism
between different aqueous compartments, which provide the
observation of patterns at a macroscopic scale length, that is,
centimeters, is likely due to membrane defects and permeability of some intermediates. The system we investigated has some unique features, being the
first one that really represents the model for a biological structure.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Belousov-Zhabotinsky; pattern formation; reaction-diffuson systems
Elenco autori:
Magnani, A; Marchettini, N; Ristori, S; Rossi, C; Rossi, F; Rustici, Mauro; Spalla, O; Tiezzi, E.
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