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Hydrogen-Bonded Multilayers for the Release of Polyelectrolyte Nanotubes in Biocompatible Conditions AITranslate

Wanlin Xu; Etienne Ferain; Sophie DemoustierChampagne; Karine Glinel; Alain M. Jonas;
Université catholique de Louvain; Université catholique de Louvain; Université catholique de Louvain; Université catholique de Louvain; Université catholique de Louvain
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Publisher: ACS
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Abstract AITranslate

The growth and disaggregation of hydrogen-bonded layer-by-layer (LbL) multilayers based on poly(methacrylic acid) (PMAA) and poly(N-vinylcaprolactam) (PVCL) are studied depending on pH, NaCl concentration, and PVCL molar mass. Whereas multilayer growth is essentially insensitive to salt and PVCL molar mass, the critical pH for disaggregation strongly depends on salt concentration. The PMAA/PVCL multilayers are then used as sacrificial compartments for the release of LbL nanostructures in biocompatible close-to-neutral 0.15 M NaCl aqueous conditions. We particularly demonstrate the liberation of LbL nanotubes grown inside the nanopores of templating polymer membranes without having to dissolve the membrane template in nonbiocompatible organic solvents and show that the amount of released nanotubes is close to the amount of noncrossing nanopores in the membrane.

KeyWords AITranslate

layerbylayer assembly Hbonded multilayers LbL nanotubes sacrificial layers hard templating
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Basic Information:

DOI：https://doi.org/10.1021/acsapm.9b00529

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Citation Information:

The growth and disaggregation of hydrogen-bonded layer-by-layer (LbL) multilayers based on poly(methacrylic acid) (PMAA) and poly(N-vinylcaprolactam) (PVCL) are studied depending on pH, NaCl concentration, and PVCL molar mass. Whereas multilayer growth is essentially insensitive to salt and PVCL molar mass, the critical pH for disaggregation strongly depends on salt concentration. The PMAA/PVCL multilayers are then used as sacrificial compartments for the release of LbL nanostructures in biocompatible close-to-neutral 0.15 M NaCl aqueous conditions. We particularly demonstrate the liberation of LbL nanotubes grown inside the nanopores of templating polymer membranes without having to dissolve the membrane template in nonbiocompatible organic solvents and show that the amount of released nanotubes is close to the amount of noncrossing nanopores in the membrane.

quote

GB/T 7714-2015 [1] Wanlin Xu, Etienne Ferain, Sophie DemoustierChampagne, et al. ACS Applied Polymer Materials, 2019(1). DOI:10.1021/acsapm.9b00529.
MLA [1] Wanlin Xu, et al., ACS Applied Polymer Materials, no. 1, 2019, https://doi.org/10.1021/acsapm.9b00529.
APA [1] Wanlin Xu, Etienne Ferain, Sophie DemoustierChampagne, Karine Glinel, & Alain M. Jonas. (2019). ACS Applied Polymer Materials(1). https://doi.org/10.1021/acsapm.9b00529
IEEE [1] Wanlin Xu, Etienne Ferain, Sophie DemoustierChampagne, Karine Glinel, and Alain M. Jonas, ACS Applied Polymer Materials, no. 1, 2019, doi: 10.1021/acsapm.9b00529. keywords: {layerbylayer assembly;Hbonded multilayers;LbL nanotubes;sacrificial layers;hard templating}