509-34-2Relevant articles and documents
ERYTHROMYCIN AS A SUPRAMOLECULAR RECEPTOR
Barra, Monica,Rossi, Rita H. de
, p. 1119 - 1122 (1988)
When Erythromycin A (E) is added to a solution of Rhodamine B base (Z) dissolved in chloroform, dioxane or DMSO the color disappears immediately and this effect is attributed to the formation of a Host-Guest complex between Z and E followed by a fast lactonization of Z.
Fluorescent probes based on O-glycoside, and synthetic methods and application thereof
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Paragraph 0033-0036, (2018/05/16)
The invention discloses fluorescent probes based on O-glycoside, and synthetic methods and application thereof. The fluorescent probes are prepared through four-step reactions, and the synthetic methods have the characteristics of usage of cheap and easily available reaction raw materials, few reaction steps, high yield, etc. The invention discloses a plurality of purposes of the fluorescent probes based on O-glycoside, including 1, detection of iron ions on the basis of the characteristic that the fluorescent probes are of spiro structures and have no fluorescence, but emits strong red fluorescence after addition of iron ions; 2, detection of a Job's Plot curve which is utilized for analyzing the bonding ratios of the probes to iron ions; and 3, ionic competition experiments, which are used for detection of the competitiveness of the probes in the presence of a plurality of other common cations.
A dual functional probe for "turn-on" fluorescence response of Pb2+ and colorimetric detection of Cu2+ based on a rhodamine derivative in aqueous media
Li, Min,Jiang, Xiu-Juan,Wu, Hui-Hui,Lu, Hong-Lin,Li, Hai-Yang,Xu, Hong,Zang, Shuang-Quan,Mak, Thomas C. W.
, p. 17326 - 17334 (2015/10/12)
A dual functional probe L based on rhodamine was devised and synthesized. Probe L can sense Pb2+ and Cu2+ in aqueous solution through two approaches: a significant fluorescence enhancement caused by Pb2+ and a visible color change from colorless to orchid induced by Cu2+. Competitive experiments showed that probe L had high fluorescence sensitivity for Pb2+ and excellent colorimetric selectivity for Cu2+ over many environmentally relevant ions. The mechanisms of L for sensing Pb2+ and Cu2+ have been well demonstrated by ESI-MS, 1H NMR titration, IR, the crystal structure of L-Pb2+ and density functional theory calculation of L-Cu2+. In addition, fluorescence image detection of Pb2+ in living cells displayed an enhanced fluorescence effect.