Latest Posts

All Posts

Photosensitizer Induced Cell Ablation with FAP-TAP MG-2I-dL5**

Posted by Beth Kenkel on Sep 19, 2017 9:20:04 AM

Have you ever wanted to selectively kill a subset of cells in your model system? Turns out that with light-inducible photosensitizers and a quick zap of the proper color light, you can do just that.  Photosensitizing dyes and proteins have been around for awhile (check out this review), but the Bruchez and Tsang labs recently developed a photosensitizer composed of the protein complex complex and the MG-2I-dL5** fluorogen that can be used to ablate cells in culture and in vivo.  Read on to learn more about this killer illumination technique!

Read More >

Topics: Fluorescent Proteins, Non-protein Fluorophores

Better Dyeing Through Chemistry & Small Molecule Fluorophores

Posted by Guest Blogger on Sep 8, 2016 10:30:00 AM

This post was contributed by guest blogger, Luke Lavis, a Group Leader at the Janelia Research Campus, Howard Hughes Medical Institute.

Chemistry is dead, long live chemistry!

The discovery of green fluorescent protein (GFP) sparked a renaissance in biological imaging. Suddenly, cell biologists were no longer beholden to chemists and (expensive) synthetic fluorophores. Add a dash of DNA with an electrical jolt and cells become perfectly capable of synthesizing fluorophore fusions on their own. Subsequent advances in fluorescent proteins have replicated many of the properties once exclusive to small-molecules: red-shifted spectra, ion sensitivity, photoactivation, etc. These impressive advances lead to an obvious question: In this age of GFP and its ilk, why should cell biologists talk to chemists?

Read More >

Topics: Fluorescent Proteins, Fluorescent Imaging, Non-protein Fluorophores

Click here to subscribe to the Addgene Blog
 
Subscribe

 

All Topics

see all

Recent Posts