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Issue 18, 2013
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Controlled perturbation of the thermodynamic equilibrium by microfluidic separation of porphyrin-based aggregates in a multi-component self-assembling system

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Abstract

In a microfluidic H-cell, a multi-component self-assembled system is brought out-of-equilibrium by changing the bimodal composition of porphyrin stacks and pyridine-capped dimers. Driven by their different diffusivities, diffusion-controlled separation in methylcyclohexane reveals different compositions when detected in-line and off-line, which demonstrates the kinetic behaviour of this metastable system. The microfluidic technique also proves to be highly equipped to determine diffusion constants of the different assemblies.

Graphical abstract: Controlled perturbation of the thermodynamic equilibrium by microfluidic separation of porphyrin-based aggregates in a multi-component self-assembling system

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Publication details

The article was received on 22 Sep 2012, accepted on 08 Nov 2012 and first published on 08 Nov 2012


Article type: Communication
DOI: 10.1039/C2CC36887K
Citation: Chem. Commun., 2013,49, 1796-1798
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    Controlled perturbation of the thermodynamic equilibrium by microfluidic separation of porphyrin-based aggregates in a multi-component self-assembling system

    F. Helmich and E. W. Meijer, Chem. Commun., 2013, 49, 1796
    DOI: 10.1039/C2CC36887K

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