PMID- 18969394
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20121002
LR  - 20081030
IS  - 1873-3573 (Electronic)
IS  - 0039-9140 (Linking)
VI  - 62
IP  - 5
DP  - 2004 Apr 19
TI  - A novel fluorometric detection of Cu(2+) based on self-assembled bilayers.
PG  - 1035-40
LID - 10.1016/j.talanta.2003.10.029 [doi]
AB  - Fluorescent reagent sodium 1-naphthylamine diacetate (NADA) was assembled onto 
      gold electrodes via its electrostatic interaction with cysteine (Cys) that was 
      directly assembled on the gold electrode surface. Formation of the self-assembled 
      bilayers was confirmed and primarily characterized by cyclic voltammetry and 
      X-ray photoelectron spectra (XPS). The Cys modification of the gold electrode 
      prevented direct adsorption of NADA onto the gold electrode and hence eliminated 
      fluorescence quenching by gold. Strong fluorescence was observed from the NADA 
      self-assembled bilayers at gold surface and was highly efficiently quenched by 
      Cu(2+) that allowed for an extremely highly sensitive detection of Cu(2+) with a 
      detection limit of 0.2ppt and quantitative detection range of 0.5-9ppt. The 
      fluorescence from NADA/Cys/Au can be easily regenerated and therefore the present 
      report showed a reusable method for immobilizing reagent in fabricating 
      fluorescent chemosensors.
FAU - Sun, Xiang-Ying
AU  - Sun XY
AD  - College of Material Science and Engineering, Huaqiao University, Quanzhou 362011, 
      China.
FAU - Liu, Bin
AU  - Liu B
FAU - Weng, Wen-Ting
AU  - Weng WT
FAU - Jiang, Yun-Bao
AU  - Jiang YB
LA  - eng
PT  - Journal Article
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
EDAT- 2008/10/31 09:00
MHDA- 2008/10/31 09:01
CRDT- 2008/10/31 09:00
PHST- 2003/08/07 00:00 [received]
PHST- 2003/10/27 00:00 [revised]
PHST- 2003/10/27 00:00 [accepted]
PHST- 2008/10/31 09:00 [pubmed]
PHST- 2008/10/31 09:01 [medline]
PHST- 2008/10/31 09:00 [entrez]
AID - S0039-9140(03)00629-5 [pii]
AID - 10.1016/j.talanta.2003.10.029 [doi]
PST - ppublish
SO  - Talanta. 2004 Apr 19;62(5):1035-40. doi: 10.1016/j.talanta.2003.10.029.