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Displaying posts with the tag: is_archive

Featured image with Denise Scuffi

Posted by , on 30 January 2026

Our featured image, acquired by Denise Scuffi, shows stomata – small pores surrounded by a pair of specialised cells known as guard cells – from Arabidopsis thaliana expressing the fluorescent biosensor roGFP2-Orp1 in the cytosol, which enables in vivo monitoring of intracellular H₂O₂ dynamics.

Highlighting signalling biosensors 1.

Posted by , on 16 January 2025

Why there is interest in signalling biosensors, considerations for using biosensors, and the original biosensor, GFP. Why write about signalling biosensors? In my first postdoctoral position, I was introduced to the concept of endosomal signalling- a way for receptor signalling outcomes to be changed by delivering a signal to different regions of the cell. I

A biologist’s checklist for calcium imaging and optogenetic analysis

Posted by , on 12 April 2021

Technological advancement constantly makes these methods more accessible, however, there are a number of understated complexities involved with these types of imaging-based experiments