Sh. Kim et al., A self-assembled squarylium dye monolayer for the detection of metal ions by surface plasmon resonances, DYE PIGMENT, 44(1), 1999, pp. 55-61
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 hig
hly Cu2+ selective SPR sensing system was demonstrated with SAM for the squ
arylium dye on gold. (C) 1999 Elsevier Science Ltd. All rights reserved.