An efficient synthesis for silicon-rhodamines was developed, enabling the preparation and evaluation of silicon-rhodamine isothiocyanate (SITC) as a novel tool for facile fluorescent labeling. Ease of use in conjugation to amino groups, high stability and excellent photophysical properties are demonstrated. SITC-actin was found to be neutral to F-actin polymerization induction and well suited for high resolution fluorescence microscopy.
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http://dx.doi.org/10.1039/d0ob02016h | DOI Listing |
Org Biomol Chem
January 2021
Friedrich-Schiller-University, Institute of Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743 Jena, Germany.
An efficient synthesis for silicon-rhodamines was developed, enabling the preparation and evaluation of silicon-rhodamine isothiocyanate (SITC) as a novel tool for facile fluorescent labeling. Ease of use in conjugation to amino groups, high stability and excellent photophysical properties are demonstrated. SITC-actin was found to be neutral to F-actin polymerization induction and well suited for high resolution fluorescence microscopy.
View Article and Find Full Text PDFMol Pharm
August 2017
A. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, 149 13th Street, Suite 2301, Charlestown, Massachusetts 02129, United States.
New bifunctional hexa- and octadentate analogues of the hydroxamate-containing siderophore desferrichrome (DFC) have been synthesized and evaluated as Zr-chelating agents for immunoPET applications. The in vitro and in vivo inertness of these new ligands, Orn3-hx (hexadentate) and Orn-4hx derivatives (octadentate), was compared to the gold standard hexadentate, hydroxamate-containing chelator for Zr desferrioxamine (DFO). Density functional theory was employed to model the geometries of the resulting Zr(IV) complexes and to predict their relative stabilities as follows: Zr(Orn4-hx) > Zr(DFC) > Zr(Orn3-hx).
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