Hydrogen-Bonded Multilayers for the Release of Polyelectrolyte Nanotubes in Biocompatible Conditions
(2019) ACS Applied Polymer Materials — Vol. 1, n° 9, p. 2407-2416 (2019)
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- Abstract
- The growth and disaggregation of hydrogen-bonded layer-by-layer (LbL) multilayers based on poly(methacrylic acid) (PMAA) and poly(N-vinyl caprolactam) (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 non-biocompatible organic solvents, and show that the amount of released nanotubes is close to the amount of non-crossing nanopores in the membrane.
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Citations
Xu, W., Ferain, E., Demoustier, S., Glinel, K., & Jonas, A. (2019). Hydrogen-Bonded Multilayers for the Release of Polyelectrolyte Nanotubes in Biocompatible Conditions. ACS Applied Polymer Materials, 1(9), 2407-2416. https://doi.org/10.1021/acsapm.9b00529 (Original work published 2019)