Effect of metal ions on the absorption spectra and surface plasmon resonance of an azacrown indoaniline dye
2001; Elsevier BV; Volume: 49; Issue: 2 Linguagem: Inglês
10.1016/s0143-7208(01)00017-1
ISSN1873-3743
AutoresSu-Mi Lee, Shin‐Won Kang, Donguk Kim, Jian‐Zhong Cui, Sung‐Hoon Kim,
Tópico(s)Plasmonic and Surface Plasmon Research
ResumoThe effects of the complexation of a metal ion with an azacrown indoaniline (ACIA) dye on absorption spectra were evaluated using the Pariser–Parr–Pople (PPP-MO) method. The ACIA dye carrying a monoazacrown moiety exhibited sensitivity to metal ion complexation using an optical sensor based on surface plasmon resonance (SPR). A multilayer sensing chip was prepared with the ACIA dye sensing layer coated on a gold layer. Using the ACIA dye as a metal ion sensing molecule, a highly selective response to Li+ was observed.
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