Development of a Cholesterol-Conjugated Fluorescent Sensor for Site-Specific Detection of Zinc Ion at the Plasma Membrane
摘要:
A cholesterol-conjugated fluorescence Zn2+ sensor based on the fluorescein platform was designed and synthesized. The cholesterol moiety is essential for localizing the Zn2+ sensor to the cell membrane, allowing the sensor to probe changes in the Zn2+ concentration in a localized area of the cell.
Development of a Cholesterol-Conjugated Fluorescent Sensor for Site-Specific Detection of Zinc Ion at the Plasma Membrane
摘要:
A cholesterol-conjugated fluorescence Zn2+ sensor based on the fluorescein platform was designed and synthesized. The cholesterol moiety is essential for localizing the Zn2+ sensor to the cell membrane, allowing the sensor to probe changes in the Zn2+ concentration in a localized area of the cell.
We synthesized a new class of red- and far-red-emitting Zn2+ probes with minimalphototoxicity, μM affinities and high turn-on ratios. Tailored for 4D, long-term and multiple-color recording of Zn2+/insulin co-secretion in β-cells and islets, the new probes promise to unveil the spatial-temporal regulation of islet endocrinology.