Reversibly pH-Responsive Nanoporous Layer-by-Layer Microtubes. Academic Article uri icon


  • Nanoporous layer-by-layer (LbL) microtubes consisting of poly(allylamine hydrochloride) (PAH) and poly(acrylic acid) (PAA) are prepared by LbL deposition in porous templates followed by postassembly acid treatment. The formation of the nanoporous structure is studied as a function of solution pH, treatment time, and number of layers. Pore formation is most effective at pH 1.8, requiring only 5 min to achieve a complete transition, and is shown to be reversible. Whereas the inner surface of the porous microtubes is rough, the outer surface is smoother and exhibited isolated pores, suggestive of an asymmetric porous structure.

published proceedings

  • ACS Macro Lett

author list (cited authors)

  • Sung, C., Ye, Y., & Lutkenhaus, J. L.

citation count

  • 9

complete list of authors

  • Sung, Choonghyun||Ye, Yixin||Lutkenhaus, Jodie L

publication date

  • April 2015