Frances Arnold

Innovation by evolution,
Linus Pauling Professor at Caltech,
Nobel Prize in Chemistry (I am an engineer of the biological world)

[Frances Arnold @francesarnold]

My ACS Priestley Medal address can be found here. Many stories not told in science talks...
https://t.co/8hYfgC7FUs

[Weizmann Institute @WeizmannScience]

We, the Weizmann Institute of Science community, deeply mourn the passing of Prof. Ada Yonath of the Institute’s Chemical and Structural Biology Department. Prof. Yonath pioneered the study of the ribosome, the cell’s protein factory, and was awarded the 2009 Nobel Prize in Chemistry for her research in this field. Her decades-long scientific journey led to an understanding of how various antibiotics work, helping pave the way for the development of new antibiotics and the fight against antibiotic-resistant bacteria.
Yonath, the first Israeli woman scientist to win a Nobel Prize, also received dozens of other awards and honors, including the Israel Prize in Chemistry and the Wolf Prize in Chemistry. Prof. Yonath exemplified how scientific vision, the courage to choose a major scientific question and unwavering dedication to its pursuit can lead to extraordinary achievements and expand the boundaries of knowledge for the future of humanity.
May her memory be a blessing.
https://t.co/HXKGqen1k5

[Frances Arnold @francesarnold]

@KFBChem Congratulations!!

[Frances Arnold @francesarnold]

looking forward to my visit to Notre Dame @NotreDame!

[Notre Dame Science @NDscience]

Nobel Laureate Frances H. Arnold has been named the 2026 recipient of the Carrier Medal, honoring her pioneering contributions to science and engineering.

Arnold received the 2018 Nobel Prize in Chemistry for her groundbreaking work in directed evolution: https://t.co/MK0p35LjfK

[Demis Hassabis @demishassabis]

I’ve been working towards AGI my whole life, and as we enter this pivotal moment, I’m stepping into a new role as Chair of Google DeepMind & Chief Scientist of Alphabet. This will allow me to focus on long-term strategy, and accelerating scientific breakthroughs, including leaning into my work at Isomorphic to help cure disease.

I’m excited that @koraykv will be stepping up to lead GDM as SVP, alongside @joshwoodward and our exec team. I could not be more excited and confident about our amazing next chapter! 🚀

https://t.co/2WtlIIlTUa

[Frances Arnold @francesarnold]

I love this!
https://t.co/sPoRUlei98

[Dr. Heather Berlin @heather_berlin]

Thrilled to be emceeing this 250th Revolutions in Science Symposium @theNASciences @smithsonian in DC on June 25th, and interviewing chemical engineer/inventor Robert Langer and @NobelPrize winner @francesarnold! https://t.co/CWOTzHarlh

[Frances Arnold @francesarnold]

Congratulations to Soumitra @athavale_s ! I love iron—it can do (almost) anything.

[Soumitra Athavale @athavale_s]

Honored to be a part of this year's C&EN Talented 12 cohort! All credit goes to my research group https://t.co/Kez8PQ178K for their supreme efforts in pushing the boundaries of what enzymes can do, and to the support of my mentors @uclachem @CaltechCCE @IISERPune @ChemistryUIUC

[Frances Arnold @francesarnold]

See what #enzymes can do! (With some #directed evolution)

[Science Magazine @ScienceMagazine]

Researchers in Science report a kilogram-scale synthesis of enlicitide, a peptide drug for lowering low-density cholesterol that is in a Phase 3 clinical trial.

This new synthesis route leverages engineered enzymes and crystallization of key intermediates, substantially cutting down the number of reaction steps while improving yield. Learn more in a new #SciencePerspective: https://t.co/2g5nUA7d9G

[Micah Olivas @MicahOlivas1]

Many experiments in biology happen one protein at a time, which means synthesizing DNA one gene at a time. This is fine for tens of genes. For thousands, the cost is unsustainable.

Introducing uSort-M: a method to isolate and sequence-verify thousands of genes at low cost

[Jennifer Listgarten @jlistgarten]

Our review on AI for protein engineering is out now, about this too-fast-moving field full of hype and overclaim, yet one that is having a real impact on the world and can be described in a coherent manner without histrionics
https://t.co/woOWuyTV5R

[Frances Arnold @francesarnold]

This is why international scientific exchange is so important. We must protect and encourage collaboration and mobility.

[Jarrid Rector-Brooks @jarridrb]

What if AI could invent enzymes that nature hasn’t seen? 👩‍🔬🧑‍🔬

Introducing 🪩 DISCO: Diffusion for Sequence-structure CO-design

14 rounds of directed evolution and over a year of wet lab work. That's what it took to engineer an enzyme for selective C(sp³)–H insertion, one of the most challenging transformations in organic chemistry.

DISCO surpasses this with a single plate. No pre-specified catalytic residues, no template, no theozyme, no inverse folding, just joint diffusion over protein sequence and structure.

📝 Blog: https://t.co/j9Za0JigfO
📄 Paper: https://t.co/ficrYNBBrM
💻 Code: https://t.co/p81sSwoaPH

[Sabine Brinkmann @Sabine_BC]

Congrats to my colleagues in the @francesarnold lab @jarridrb and @ChengHaoLiu1 and their co-authors for their fantastic work pushing the new frontier in enzyme design space!

I am cheering you on as if you did 20 uninterrupted strict pull-ups 💪

[Jarrid Rector-Brooks @jarridrb]

What if AI could invent enzymes that nature hasn’t seen? 👩‍🔬🧑‍🔬

Introducing 🪩 DISCO: Diffusion for Sequence-structure CO-design

14 rounds of directed evolution and over a year of wet lab work. That's what it took to engineer an enzyme for selective C(sp³)–H insertion, one of the most challenging transformations in organic chemistry.

DISCO surpasses this with a single plate. No pre-specified catalytic residues, no template, no theozyme, no inverse folding, just joint diffusion over protein sequence and structure.

📝 Blog: https://t.co/j9Za0JigfO
📄 Paper: https://t.co/ficrYNBBrM
💻 Code: https://t.co/p81sSwoaPH

[Patrick Drake @time8machine]

"At @time8machine, we believe in the usefulness of 'useless' knowledge. As Nobel Laureate Frances Arnold reminds us, the knowledge we explore purely for the sake of curiosity today is often the foundation for the essential breakthroughs of tomorrow. We are here to do the exploring that the future will depend on."🗝

[Prof. Anima Anandkumar @AnimaAnandkumar]

I am honored to be joining the Scientific Advisory Board of the @UN https://t.co/gk0cz7dT4y

The Secretary-General's Scientific Advisory Board and its associated global network of scientific institutions advise UN leaders on breakthroughs in science and technology – how to harness the benefits of these advances and mitigate potential risks. The Board provides independent insights on trends at the intersection of science, technology, ethics, governance and sustainable development to support UN System organizations in anticipating, adapting to and leveraging scientific advancements in their work for people, planet and prosperity.

[DK Pittsburgh Sports @DKPghSports]

Stockholm is home to the Nobel Prize Museum, which has an exhibit on Pittsburgh's own Frances Arnold -- the first American woman to win the Nobel Prize in Chemistry!

More FREE coverage of the #Penguins' trip to Sweden: https://t.co/5gIf6mxqFo

[Frances Arnold @francesarnold]

This profile came from lunch in Stockholm in December. https://t.co/s6wMdWvTaC

[Christopher Michel @chrismichel]

One of the quiet failures of our time is how rarely we humanize science.

We celebrate breakthroughs and technologies, but too often we lose the people behind them. The curiosity, doubt, persistence, and moral weight that shape real discovery. When science feels abstract, it becomes easy to dismiss or distrust.

Through New Heroes, a long-form project created with @theNASEM, I set out to do the opposite. To slow down. To listen. To photograph scientists, engineers, and medical leaders as humans first.

This collection brings together some of the most inspiring minds of our time, including Jennifer Doudna, @francesarnold, Saul Perlmutter, Steve Chu, David Baker, @demishassabis, Carolyn Bertozzi, etc...

The goal isn’t hero worship. It’s connection. When we see the people behind the work, science becomes relatable, accountable, and worth defending.

The full body of work lives on https://t.co/YuBRXFhRPH, where the stories can unfold beyond a single image.

If we want a future guided by evidence and wisdom, we need to tell better stories about the people doing the work.

https://t.co/50KSN00dM2

[Mikhail Shapiro (same on bsky) @mikhailshapiro]

Excited to co-found @Merge Labs!
TLDR: We’re developing a new paradigm for BCI using molecules instead of electrodes. If you’re excited about this and want to contribute in protein engineering, synbio, delivery, immunology, ultrasound, devices, neuroscience, or data/ML/AI, we’d love to hear from you.
https://t.co/YbMqQwePWv
https://t.co/XEG7p4NOCI
🧵

[Frances Arnold @francesarnold]

@mikhailshapiro @merge Congratulations, @mikhailshapiro, such an exciting vision.