Fletcher Lab

The Fletcher lab @UCBerkeley in the @BerkeleyBioE, @UCB_Biophysics, @BerkeleyMCB departments. Account run by students/post-docs.

[Fletcher Lab @FletcherLab_UCB]

Lab: Why aren't we on Twitter?
Dan: Umm. I don't follow Twitter.
Lab: But the rest of the world does. Scientists too.
Dan: I see. What's your point?
Lab: We should be on Twitter. And join scientific discussions.
Dan: I'm more the silent type.
Lab: We'll run it.
Dan: Go for it!

[Fletcher Lab @FletcherLab_UCB]

We are recruiting participants for endometriosis research. Our lab is studying menstrual blood to develop better diagnostic and therapeutic tools for endometriosis. If you would like to participate, please complete this survey: https://t.co/L5WuTsFkNt

[Fletcher Lab @FletcherLab_UCB]

Congratulations to Carlos (@NG04) for his doctoral hooding ceremony! #PhinisheD #PhD

[Fletcher Lab @FletcherLab_UCB]

A huge thanks to everyone who participated in the Fletcher Lab Art Show 2026! Your creativity, talent, and passion made this event truly special. Check out the Ground State Ensemble performance: https://t.co/wDyUneFeXX

[Fletcher Lab @FletcherLab_UCB]

Fletcher Lab members brought hand-held microscopes to the @exploratorium outreach event — putting the power to explore the microscopic world directly in people's hands. Huge shoutout to Michael Anne, Zaina, Andres, and Chunzi.
©Exploratorium, photo by Ida Tietgen Høyrup.

[Fletcher Lab @FletcherLab_UCB]

Congratulations to Carlos (@NG04) for being a recipient of the 2026 Outstanding Graduate Student Peer Mentor Award. Images courtesy of Laure Andrillon.

[Fletcher Lab @FletcherLab_UCB]

Congratulations Smiti (@smiti_m) for passing your qualifying exam! #PhDCandidate

[Fletcher Lab @FletcherLab_UCB]

Join us for the 22nd Fletcher Lab Artshow! We’re looking for artists to submit their work and be part of an evening celebrating creativity and community. We will also have the return of the Ground State Ensemble! Art by @chunzi_liu

@QB3Berkeley
@UCB_Biophysics
@berkeleyMCB

[Fletcher Lab @FletcherLab_UCB]

In our new work published in @natBME in collaboration with @TheOttLab and @Doudna_lab, we introduce "interfering" guide RNAs (igRNAs) for CRISPR-Cas13a that regulate enzyme activity after activation. Congratulations to all the authors!

https://t.co/d8k3x4hTt5

[Fletcher Lab @FletcherLab_UCB]

Happy #internationalwomensday to all of the incredible women, especially those from our lab (past and present). Your curiosity, creativity and determination continue to shape our science and community.

[Fletcher Lab @FletcherLab_UCB]

The NTDscope is a portable brightfield, darkfield, and fluorescence microscope used for diagnosing neglected tropical diseases (NTDs). This video shows S. mansoni miracidia. Check out our most recent publication: https://t.co/OKN9qAULAG

[Fletcher Lab @FletcherLab_UCB]

Check out our latest preprint: LUCas! A direct light control of Cas13 trans-cleavage activity. Congrats to all the authors: Carlos (@NG04), Deepak (@deepak_me90), Andres (@adextre521), and Aymeric.

https://t.co/ntVf9qa3Pf

[Fletcher Lab @FletcherLab_UCB]

Preprint out! Cell surfaces are crowded with tall proteins that block immune recognition.

We discovered tall binding proteins create “stepping stones” that help short receptors engage, even in dense crowds.

In memory of Phillip L. Geissler

https://t.co/XS3yKP1n7u

[Fletcher Lab @FletcherLab_UCB]

How does a macrophage decide to eat or simply nibble? Check out our latest paper! You can also read this nice review. Congrats @CaitlinCornell6 for leading this amazing work!

https://t.co/4kw2vhqdCi
https://t.co/BLRZpHcWts

[Waggoner Lab @LabWaggoner]

Macrophages can engulf targets whole (phagocytosis) or nibble them in small fragments (trogocytosis), a decision controlled by cortical tension in the targets (high tension favors former, low latter)
https://t.co/bWqUvSxpRs
https://t.co/eBZHkmmHb6
@NatureCellBio @UCBerkeley

[Fletcher Lab @FletcherLab_UCB]

If you are going to #ASCB2025, check out some great talks and posters from our lab members

[Fletcher Lab @FletcherLab_UCB]

Happy Thanksgiving! Gratitude today for everyone pushing the frontiers of science in their different roles.

[Fletcher Lab @FletcherLab_UCB]

Check out our latest published manuscript: SurFlex microscopy, a new technique to measure molecular flexibility. Congrats to Aymeric, Sid (@SidAg92), Lena (@lfblackmon) and Andrés (@adextre521)!
https://t.co/jZEJeyZzFK

[Fletcher Lab @FletcherLab_UCB]

Congrats Dan!

[Berkeley Engineering @Cal_Engineer]

Dan Fletcher, Chatterjee Professor of Bioengineering and Biophysics, is among the 100 new members elected to the National Academy of Medicine (@theNAMedicine)!

Learn more: https://t.co/G0tTMZPyAF

[Isaac Bogoch @BogochIsaac]

Our team is developing portable digital microscopes that harness AI to automatically detect parasitic infections.

This shows great potential to help public health programs expand access to affordable disease screening in low-resource settings.

Link: https://t.co/KIIl8jdVuh

[Fletcher Lab @FletcherLab_UCB]

Check out Siddhansh (@SidAg92) presentation at the 4th Physics of Life Symposium hosted by the #CZBiohubSF. https://t.co/EKJCOTtB7n