Details

Autor(en) / Beteiligte

• Nguyen, Thoi D
• Leung, Ken C.-F
• Liong, Monty
• Pentecost, Cari D
• Stoddart, J. Fraser
• Zink, Jeffrey I

Titel

Construction of a pH-Driven Supramolecular Nanovalve

Ist Teil von

• Organic letters, 2006-07, Vol.8 (15), p.3363-3366

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2006

Quelle

MEDLINE

Beschreibungen/Notizen

• The versatility of supramolecular chemistry has been exploited in constructing nanovalves based on mesoporous silica MCM-41 and the mutual recognition between secondary dialkylammonium ions and dibenzo[24]crown-8 (DB24C8). Naphthalene-containing dialkylammonium threads were tethered to the MCM-41, followed by loading with coumarin 460 and capping with DB24C8. Controlled release of coumarin 460 from the pores of MCM-41 was demonstrated using different bases. The rate of release of coumarin 460 from the nanovalves depends on the size of the base.