A self-assembled squarylium dye monolayer for the detection of metal ions by surface plasmon resonances

Self-assembly of a squarylium dye containing an alkanethiol substituent on a gold surface is described. The self-assembled monolayers (SAMs) obtained were investigated by contact angle measurement and atomic force microscopy (AFM). Surface plasmon resonance (SPR) has been employed to investigate the...

Full description

Saved in:
Bibliographic Details
Published in:Dyes and pigments 1999, Vol.44 (1), p.55-61
Main Authors: Kim, Sung-Hoon, Han, Sun-Kyung, Kim, Jae-Ho, Lee, Myung-Bock, Koh, Kwang-Nak, Kang, Shin-Won
Format: Article
Language:English
Subjects:
Cu 2+ ion sensor
Resonance angle
Self-assembled monolayer (SAM)
Squarylium dye (SQ)
Surface plasmon resonance (SPR)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Self-assembly of a squarylium dye containing an alkanethiol substituent on a gold surface is described. The self-assembled monolayers (SAMs) obtained were investigated by contact angle measurement and atomic force microscopy (AFM). Surface plasmon resonance (SPR) has been employed to investigate the interaction of the squarylium dye monolayer on gold with metal ions. A highly Cu 2+ selective SPR sensing system was demonstrated with SAM for the squarylium dye on gold.
ISSN:0143-7208
1873-3743
DOI:10.1016/S0143-7208(99)00071-6