1. Zinc sensors with lower binding affinities for cellular imaging
- Author
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Jin Hoon Kim, Youngmee Kim, Insup Noh, In Hong Hwang, Juhye Kang, Seung Pyo Jang, Roger G. Harrison, Sumi Kim, and Cheal Kim
- Subjects
inorganic chemicals ,Metal ions in aqueous solution ,Inorganic chemistry ,Molecular Conformation ,chemistry.chemical_element ,Zinc ,Crystallography, X-Ray ,Cell Line ,Inorganic Chemistry ,chemistry.chemical_compound ,Coordination Complexes ,Humans ,Amines ,Picolinic Acids ,Fluorescent Dyes ,Binding affinities ,Microscopy, Confocal ,Cellular imaging ,Quinoline ,Fluorescence ,In vitro ,chemistry ,Metals ,Quinolines ,Single crystal - Abstract
Zinc sensors based on 2,3-dipicolylamine (DPA) and quinoline have been synthesized. They fluoresced in the presence of Zn(2+) and remained fluorescent when other metal ions were present. Fluorescence enhancement of the sensors was not seen for most other metal ions. In vitro studies with fibroblasts showed fluorescence when sensor and Zn(2+) were present. As seen by single crystal X-ray analysis, four nitrogens from the sensor bind to Zn(2+). These new sensors have lower binding constants than the pentadentate sensors based on 2,2-DPA.
- Published
- 2013
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