Work

Three-Input Logic Gates with Potential Applications for Neuronal Imaging

Year: 2014

Type: article

Abstract: Convenient methods for the direct visualization of neurotransmitter trafficking would bolster investigations into the development of neurodegenerative diseases. Here, tunable fluorescent molecular logic gates with applications to neuronal imaging have been developed. The three-input AND molecular logic gates are based on the coumarin-3-aldehyde scaffold and designed to give a turn-on fluorescence response upon the corelease of glutamate and zinc from secretory vesicles via exocytosis. Spectroscopic studies reveal an 11-fold fluorescence enhancement under conditions mimicking exocytosis. Methylation of the scaffold was used to optimize the spectral profile of the sensors toward desired excitation wavelengths. A binding study that elucidates the sensor-analyte interactions is presented. These sensors serve as a proof-of-concept toward the direct imaging of neurotransmitters released upon exocytosis using fluorescent molecular logic gates.

Source: Journal of the American Chemical Society

DOI: 10.1021/ja501211v

Authors: Kenneth S. Hettie, Jessica L. Klockow, Timothy E. Glass

Institution: University of Missouri

Language: English

Topic: Molecular Sensors and Ion Detection

Subfield: Spectroscopy

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500

Funder: National Science Foundation