New Strategy for Quantifying Biological Zinc by a Modified Zinpyr Fluorescence Sensor
摘要:
Substitution of one pyridine by pyrazine in each DPA appendage of ZP1 leads to a new zinc sensor, ZPP1, with a modified background fluorescence and zinc affinity. ZPP1 exhibits a two-step zinc response during fluorescence titrations, which leads to a new method for zinc quantification. The ability of ZPP1 to image and quantify zinc was demonstrated in pancreatic Min6 cells.
Understanding Zinc Quantification with Existing and Advanced Ditopic Fluorescent Zinpyr Sensors
作者:Daniela Buccella、Joshua A. Horowitz、Stephen J. Lippard
DOI:10.1021/ja110907m
日期:2011.3.23
ditopic fluorescence zinc sensors functionalized with pyridine/pyrazine-containing metalchelating units is described, and through detailed studies the principles governing the characteristic OFF-ON-OFF fluorescence behavior and quantification capabilities of the family are delineated. Incorporation of carboxylate/ester groups in the 6 position of the fluorescein allows for control of the spatial distribution
Visualization of Peroxynitrite-Induced Changes of Labile Zn<sup>2+</sup> in the Endoplasmic Reticulum with Benzoresorufin-Based Fluorescent Probes
作者:Wei Lin、Daniela Buccella、Stephen J. Lippard
DOI:10.1021/ja4059487
日期:2013.9.11
cuvette, with similar responses obtained in live cells using standard wide-field fluorescence microscopy imaging. The new sensors localize spontaneously in the endoplasmicreticulum (ER) of various tested cell lines, allowing for organelle-specific monitoring of zinc levels in live cells. Study of ER zinc levels in neural stemcells treated with a peroxynitrite generator, Sin-1, revealed an immediate decrease
[EN] XANTHENE DYES COMPRISING A SULFONAMIDE GROUP<br/>[FR] COLORANTS XANTHÈNES COMPRENANT UN GROUPE SULFONAMIDE
申请人:BIOTIUM INC
公开号:WO2010091126A1
公开(公告)日:2010-08-12
The present invention relates to fluorescent dyes in general. The present invention provides a wide range of fluorescent dyes and kits containing the same, which are applicable for labeling a variety of biomolecules, cells and microorganisms. The present invention also provides various methods of using the fluorescent dyes for research and development, forensic identification, environmental studies, diagnosis, prognosis, and/or treatment of disease conditions.
A far-red emitting probe for unambiguous detection of mobile zinc in acidic vesicles and deep tissue
作者:Pablo Rivera-Fuentes、Alexandra T. Wrobel、Melissa L. Zastrow、Mustafa Khan、John Georgiou、Thomas T. Luyben、John C. Roder、Kenichi Okamoto、Stephen J. Lippard
DOI:10.1039/c4sc03388d
日期:——
A fluorescent sensor that is pH-insensitive and compatible with two-photon microscopy was developed and applied to live cell and deep tissue imaging.