TY - JOUR
T1 - Utilization of a spiropyran derivative in a polymeric film optode for selective fluorescent sensing of zinc ion
AU - Zhang, Ying
AU - Shao, Na
AU - Yang, Ronghua
AU - Li, Ke'an
AU - Liu, Feng
AU - Chan, Winghong
AU - Mo, Tian
N1 - Funding Information:
Natural Science Foundation of China (Grant No. 20475005) and the National Outstanding Youth Foundation of China (Grant No. 20525518) are gratefully acknowledged.
PY - 2006/6
Y1 - 2006/6
N2 - A new spiropyran derivative was synthesized and first utilized in a polymeric film-based optical sensor for zinc ion. Spiropyrans, combining the characteristics of metal binding and signal transduction, show potential function in the design of optical chemical sensors (optodes) toward metal ions. When embedded in a plasticized poly(vinyl chloride) (PVC) membrane, the newly synthesized spiropyran derivative 1 exhibits obvious fluorescence enhancement at 630 nm in the presence of zinc ion in aqueous solution. With the optimum condition described, the optode membrane responds to zinc ion over a dynamic range of 4.94 × 10-7 to 4.15 × 10-4 mol·L-1, with a detection limit of 1.51 × 10-7 mol·L-1. The membrane not only displays excellent photostability, reproducibility and reversibility, but also exhibits high selectivity toward zinc ion over transition metal ions including Hg2+, Cd2+, Pb2+, Cu2+, Fe3+ and common cationic ions presented in the physiological fluids.
AB - A new spiropyran derivative was synthesized and first utilized in a polymeric film-based optical sensor for zinc ion. Spiropyrans, combining the characteristics of metal binding and signal transduction, show potential function in the design of optical chemical sensors (optodes) toward metal ions. When embedded in a plasticized poly(vinyl chloride) (PVC) membrane, the newly synthesized spiropyran derivative 1 exhibits obvious fluorescence enhancement at 630 nm in the presence of zinc ion in aqueous solution. With the optimum condition described, the optode membrane responds to zinc ion over a dynamic range of 4.94 × 10-7 to 4.15 × 10-4 mol·L-1, with a detection limit of 1.51 × 10-7 mol·L-1. The membrane not only displays excellent photostability, reproducibility and reversibility, but also exhibits high selectivity toward zinc ion over transition metal ions including Hg2+, Cd2+, Pb2+, Cu2+, Fe3+ and common cationic ions presented in the physiological fluids.
KW - Fluorescent spectroscopy
KW - PVC membrane
KW - Sensor
KW - Spiropyran
KW - Zinc ion
UR - http://www.scopus.com/inward/record.url?scp=33747078728&partnerID=8YFLogxK
U2 - 10.1007/s11426-006-0246-3
DO - 10.1007/s11426-006-0246-3
M3 - Journal article
AN - SCOPUS:33747078728
SN - 1006-9291
VL - 49
SP - 246
EP - 255
JO - Science in China, Series B: Chemistry
JF - Science in China, Series B: Chemistry
IS - 3
ER -