A simple method to produce dendrimer nanodots over centimeter scales by rapid evaporation of solvents

Masahito Sano, Junko Okamura, Atsushi Ikeda, Seiji Shinkai

研究成果: ジャーナルへの寄稿学術誌査読

17 被引用数 (Scopus)

抄録

A simple method to produce aggregates of dendrimers in a form of nanometer-sized round dots over an area measured in centimeters is presented. The method is based on rapid evaporation of a solvent from a thin cast film of an electrolyte solution of polyamidoamine dendrimers on mica. Chemically specific adsorption, electrostatic interactions, phase transitions, and dewetting instabilities are shown not to be responsible for the dot formation. Changes in temperature and humidity have only little effect. There is a threshold evaporation rate above which the dots are formed. Once formed, the dot size and spacing are independent of the evaporation rate. The dot is also formed by different types of dendrimers and solutes, demonstrating the wide applicability of the present method.

本文言語英語
ページ(範囲)1807-1810
ページ数4
ジャーナルLangmuir
17
6
DOI
出版ステータス出版済み - 3月 20 2001

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 表面および界面
  • 分光学
  • 電気化学

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