Anionic鈭扖ationic Switchable Amphoteric Monodisperse Mesoporous Silica Nanoparticles

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• 作者：Yanhang Ma ; Lei Xing ; Haoquan Zheng ; Shunai Che
• 刊名：Langmuir
• 出版年：2011
• 出版时间：January 18, 2011
• 年：2011
• 卷：27
• 期：2
• 页码：517-520
• 全文大小：771K
• 年卷期：v.27,no.2(January 18, 2011)
• ISSN：1520-5827

文摘

Anionic鈭抍ationic switchable monodisperse mesoporous silica nanoparticles were synthesized by one-pot amino and carboxylic acid bifunctionalization based on the self-assembly of the surfactant, two types of co-structure-directing agents containing amino and carboxylic groups, and silica sources. These nanoparticles revealed properties of dispersity and reversibility, with the advantage of the pH-responsive anionic鈭抍ationic/acid鈭抌ase switchability. It was demonstrated that the extracted materials achieved reutilization and controllable dispersity in aqueous solution by adjusting the static electric power among the particles during the switching process.