Design and synthesis of a fluorescent probe based on naphthalene anhydride and its detection of copper ions.

Abstract

Copper, as the third most abundant transition metal ions of human, plays an essential role in the redox reaction, signal transduction, hematopoiesis, and other physiological processes. Abnormal content of copper ions in the body will cause some diseases such as anemia, coronary heart disease, Menkes' syndrome. In this article, a new fluorescence probe L for Cu2+ was designed and synthetized by using 4-bromo-1,8 naphthalene anhydride and 2-thiophene formaldehyde as raw materials. Fluorescent probe L itself exhibited strong fluorescence, upon the addition of Cu2+ ions, the fluorescence was quenched. The fluorescent detection limit for Cu2+ ions was determined to be 1.8 μM based on a 3δ/S method. UV-vis absorption and fluorescence spectra indicated that probe L showed good selectivity and sensitivity for Cu2+, and this selectivity was not interfered by other metal ions and anions. Further cell fluorescence imaging experiments indicated that the probe L had potential to be used to examine copper ions in vivo.

• Authors: Guangjie He, Chenxi Liu, Xiaobo Liu, Qingzhi Wang, Aiying Fan, Songjun Wang, Xinlai Qian
• Journal: PloS one (PLoS One) Vol. 12 Issue 10 Pg. e0186994 ( 2017) ISSN: 1932-6203 [Electronic] United States
• PMID: 29073217 (Publication Type: Journal Article)

Chemical References

• Fluorescent Dyes
• Naphthalenes
• naphthalene
• Copper

Topics

• Chemistry Techniques, Synthetic
• Copper (analysis, chemistry)
• Drug Design
• Fluorescent Dyes (chemical synthesis, chemistry)
• Hydrogen-Ion Concentration
• Limit of Detection
• Naphthalenes (chemical synthesis, chemistry)