pH-amplified exponential growth multilayers: a facile method to develop 
hierarchical micro- and nanostructured surfaces

Fu, Jinhong; Ji, Jian; Shen, Liyan; Küller, Alexander; Rosenhahn, Axel; Shen, Jiacong; Grunze, Michael

doi:10.1021/la803692v

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

pH-amplified exponential growth multilayers: a facile method to develop hierarchical micro- and nanostructured surfaces

MPS-Authors

/persons/resource/persons211638

Grunze, Michael
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

External Resource

https://pubs.acs.org/doi/pdf/10.1021/la803692v
(全文テキスト（全般）)

https://doi.org/10.1021/la803692v
(全文テキスト（全般）)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

公開されているフルテキストはありません

付随資料 (公開)

There is no public supplementary material available

引用

Fu, J., Ji, J., Shen, L., Küller, A., Rosenhahn, A., Shen, J., & Grunze, M. (2009). pH-amplified exponential growth multilayers: a facile method to develop hierarchical micro- and nanostructured surfaces. Langmuir, 25(2), 672-675. doi:10.1021/la803692v.

引用: https://hdl.handle.net/21.11116/0000-0001-9AF0-2

要旨

We report a direct method to amplify the exponential growth of multilayers significantly by the alternating deposition of polyethylenimine (PEI) at high pH and poly(acrylic acid) (PAA) at low pH. The alternating pH switches the degree of ionization of the polyelectrolytes in the multilayers, which enhances the diffusion of PEI into and out of the film and hence increases the deposited mass per cycle. The synergetic action of the pH-tunable charge density and diffusivity of the weak polyelectrolytes provides a new method for the enhanced growth of multilayers with hierarchal micro- and nanostructured surfaces.