Selective recognition of fumarate from maleate with a gold nanoparticle-based colorimetric sensing system

作者：Youk Kyung Seog; Kim Kyung Mi; Chatterjee Amrita; Ahn Kyo Han^*

来源：Tetrahedron Letters, 2008, 49(22): 3652-3655.

DOI：10.1016/j.tetlet.2008.03.142

• o-(trifluoroacetyl)carboxanilides
• gold nanoparticles
• colorimetric sensing
• fumarate
• dicarboxylates

A colorimetric sensing system of gold nanoparticles functionalized with carboxylate-binding units of o-(trifluoroacetyl)carboxanilide is described, which selectively recognizes a trans-dicarboxylate (fumarate) from its cis-isomer (maleate) and several dicarboxylates through inter-particle cross-linking, resulting in an apparent color change from red to purple.

• 出版日期2008-5-26