A Ratiometric Fluorescent Sensor for AgI with High Selectivity and Sensitivity
摘要:
A bicyclic cycloadduct 1 bearing a pyrenyl moiety has been synthesized and investigated as a ratiometric fluorescent sensor for AgI. In an aqueous ethanol solution of 1, the presence of silver ion induces the formation of a 1:2 metal-ligand complex, which exhibits a strong intensity enhancement of the pyrene excimer emission at the expense of the emission of monomeric pyrene.
A Ratiometric Fluorescent Sensor for AgI with High Selectivity and Sensitivity
摘要:
A bicyclic cycloadduct 1 bearing a pyrenyl moiety has been synthesized and investigated as a ratiometric fluorescent sensor for AgI. In an aqueous ethanol solution of 1, the presence of silver ion induces the formation of a 1:2 metal-ligand complex, which exhibits a strong intensity enhancement of the pyrene excimer emission at the expense of the emission of monomeric pyrene.
Synthesis and Biological Activity of Isoxazolidinyl Polycyclic Aromatic Hydrocarbons: Potential DNA Intercalators
作者:Antonio Rescifina、Maria A. Chiacchio、Antonino Corsaro、Erik De Clercq、Daniela Iannazzo、Antonio Mastino、Anna Piperno、Giovanni Romeo、Roberto Romeo、Vincenza Valveri
DOI:10.1021/jm050772b
日期:2006.1.1
Isoxazolidinyl polycyclic aromatic hydrocarbons (isoxazolidinyl-PAHs) have been synthesized in good yields by 1,3-dipolar cycloaddition methodology promoted by microwave irradiation. The structures of the obtained cycloadducts have been determined by NOE experiments and supported by computational studies at the AMI level. The cytotoxicity and antiviral activity of the synthesized compounds have been investigated. In particular, compounds 7c and 7e show high levels of cytotoxicity on MOLT-3 leukemia cells;, 7e exerts a remarkable enhancing activity on apoptosis caused by anti-fas antibody addition. Furthermore, compounds 7b and 8b exhibit specific antiviral effects against the Punta Toro virus.
A Ratiometric Fluorescent Sensor for Ag<sup>I</sup> with High Selectivity and Sensitivity
作者:Rong-Hua Yang、Wing-Hong Chan、Albert W. M. Lee、Ping-Fang Xia、Hong-Kui Zhang、L
DOI:10.1021/ja029253d
日期:2003.3.1
A bicyclic cycloadduct 1 bearing a pyrenyl moiety has been synthesized and investigated as a ratiometric fluorescent sensor for AgI. In an aqueous ethanol solution of 1, the presence of silver ion induces the formation of a 1:2 metal-ligand complex, which exhibits a strong intensity enhancement of the pyrene excimer emission at the expense of the emission of monomeric pyrene.