Π-Π-Π stacking for capturing-releasing Au clusters in meso-structured system

Wei Geng, Jie Hu, Zhi Yi Hu, Li Wang, Tian Zhao, Xiao Yu Yang, Zhi Ming Qiu, Bao Lian Su

Research output: Contribution to journalArticle

Abstract

Smart delivery systems have received increasing attentions, due to the controllable capturing-releasing of the guests in many applications. Here, we propose a pH-responsive Au cluster capturing-releasing system using the mesoporous silica nanoparticles (MSNs) modified by organic molecular tweezers. The π-π-π stacking have been used to capture and stabilize the Au clusters in the pores of MSNs on the neutral or alkaline conditions, and responsively release and manipulate the Au clusters by adjustment of the pH value. The released Au clusters show high catalytic activity.

Original languageEnglish
Pages (from-to)134-138
Number of pages5
JournalChemical Physics Letters
Volume712
DOIs
Publication statusPublished - 16 Nov 2018

Keywords

  • Au clusters
  • Mesoporous silica nanoparticles
  • Organic molecular tweezers
  • pH-responsive controlled capturing and releasing
  • π-π-π stacking

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