The Fletcher lab @UCBerkeley in the @BerkeleyBioE, @UCB_Biophysics, @BerkeleyMCB departments. Account run by students/post-docs.
Joined June 2020
- Tweets 153
- Following 317
- Followers 1,335
- Likes 297
52 Photos and videos
Pinned Tweet
1 Jul 2020
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!
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May 26
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: redcap.berkeley.edu/surveys/…
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May 21
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May 18
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: youtu.be/h7E9Nld7mtk?feature…
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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.
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Apr 27
Congratulations to Carlos (@NG04) for being a recipient of the 2026 Outstanding Graduate Student Peer Mentor Award. Images courtesy of Laure Andrillon.
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Apr 11
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
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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!
nature.com/articles/s41551-0…
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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.
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Feb 13
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: journals.plos.org/globalpubl…
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Feb 12
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.
biorxiv.org/content/10.64898…
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Jan 14
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
biorxiv.org/content/10.64898…
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15 Dec 2025
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!
nature.com/articles/s41556-0…
nature.com/articles/s41556-0…
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Fletcher Lab retweeted
13 Dec 2025
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)
nature.com/articles/s41556-0…
nature.com/articles/s41556-0…
@NatureCellBio @UCBerkeley
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6 Dec 2025
If you are going to #ASCB2025, check out some great talks and posters from our lab members
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27 Nov 2025
Happy Thanksgiving! Gratitude today for everyone pushing the frontiers of science in their different roles.
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25 Nov 2025
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)!
pnas.org/doi/10.1073/pnas.25…
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21 Oct 2025
Congrats Dan!
20 Oct 2025
Dan Fletcher, Chatterjee Professor of Bioengineering and Biophysics, is among the 100 new members elected to the National Academy of Medicine (@theNAMedicine)!
Learn more: bit.ly/4qpTYt6
ALT A portrait of Fletcher in 2017 in front of a projection screen of a project. (Photo © Noah Berger)
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Fletcher Lab retweeted
14 Oct 2025
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: tinyurl.com/4bazch67
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22 Sep 2025
Check out Siddhansh (@SidAg92) presentation at the 4th Physics of Life Symposium hosted by the #CZBiohubSF. youtu.be/b7G5wyE6iyo?feature…
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