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Grace Han

@gracegdhan.bsky.social
703 followers 104 following 18 posts

Associate Professor at UCSB Chemistry & Biochemistry | Energy Storage via Photochemical Reactions☀️| Recycling♻️ Catalysts and Polymers 🔗https://hangroupucsb.wordpress.com/

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Reposted by Grace Han
Jake Yeston @jakeyeston.bsky.social · 23/04/2026
Ok chemsky here's the @gracegdhan.bsky.social paper in print, and I've been working with Chris Bickel for coming up on 20 years, but I think you'll all agree he outdid himself with the artistic concept of this cover!
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Reposted by Grace Han
Jake Yeston @jakeyeston.bsky.social · 23/04/2026
Anyway here's the paper again www.science.org/doi/10.1126/...
science.org
Molecular solar thermal energy storage in Dewar pyrimidone beyond 1.6 megajoules per kilogram
Storing sunlight in a compact and rechargeable form remains a central challenge for solar energy utilization. Molecular solar thermal (MOST) energy storage systems, which harness photon energy and rel...
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Reposted by Grace Han
Science Magazine @science.org · 23/04/2026
A new Science study highlights the potential of molecular solar thermal technology as a practical route toward scalable, on-demand heat delivery for water heating, cooking, and surface defrosting. Learn more in this week's issue: scim.ag/4tu9AwJ
The illustrated molecular isomerization sequence channels ultraviolet energy into heat release. A particular type of pyrimidone compound rearranges into a highly strained, folded conformation upon absorbing ultraviolet light (left). Acid exposure rapidly flattens the isomers into their original geometry while releasing a burst of heat sufficient to boil water (right).

Illustration: C. Bickel/Science
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Reposted by Grace Han
UCSB Science | UC Santa Barbara @ucsbscience.bsky.social · 13/02/2026
The team, led by @gracegdhan.bsky.social and PhD students @hanpqnguyen.bsky.social and Benjamin Baker, proved the stored energy was intense enough to boil water under ambient conditions without the need for electricity.
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Jake Yeston @jakeyeston.bsky.social · 12/02/2026
Exciting chemsky work out First Release in @science.org from @gracegdhan.bsky.social and collaborators, scrunching up pyrimidones so tight with UV light that the strain release can boil water! www.science.org/doi/10.1126/...
science.org
Molecular solar thermal energy storage in Dewar pyrimidone beyond 1.6 MJ/kg
Storing sunlight in a compact and rechargeable form remains a central challenge for solar energy utilization. Molecular solar thermal (MOST) energy storage systems, which harness photon energy and rel...
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Reposted by Grace Han
Shao-Liang Zheng @shaoliangzheng.bsky.social · 11/12/2025
🚀 A new class of ortho-palladated oxazolone complexes that capture and release solar energy via visible-light-triggered [2+2] photocycloaddition 🌞✨ doi.org/10.1039/D5SC... @gracegdhan.bsky.social @chemicalscience.rsc.org #crystallography #education
doi.org
Visible Photon Energy Storage by [2+2] Cycloaddition of Pd-Oxazolones
We report a new class of ortho-palladated oxazolone complexes that capture and release solar energy through visible-light-triggered [2+2] photocycloaddition reactions. The free oxazolone ligands weakl...
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Reposted by Grace Han
Research Corporation for Science Advancement @rescorp.org · 12/11/2025
RCSA, @sloanfoundation.bsky.social & @kavlifoundation.org have made awards to eight cross-disciplinary teams of early career researchers in the second year of #Scialog: Sustainable Minerals, Metals, and Materials.
rescorp.org
2025 Scialog SM3 Awards
Eight cross-disciplinary teams have won funding in the second year of Scialog: Sustainable Minerals, Metals, and Materials, a three-year initiative catalyzing cutting-edge basic science to address how...
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Reposted by Grace Han
moth-poulsen.bsky.social @moth-poulsen.bsky.social · 23/07/2025
Comment on @gracegdhan.bsky.social recent work on energy storage molecules in @cenmag.bsky.social cen.acs.org/energy/solar...
cen.acs.org
Curved molecule bottles sunlight and releases it as heat
Liquid anthracene morphs into high-energy isomer to store solar heat for use on demand hours later
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Reposted by Grace Han
Ivan Aprahamian @aprahamian.bsky.social · 03/07/2025
Congrats to Daniil for his publication in @chemcomm.rsc.org bit.ly/4l8B3jd showing how hydrazone photoswitches can be used in Raman scattering spectroscopy. A step forward for using hydrazones in super-resolution stimulated Raman scattering microscopy #molswitch #chemsky 🧪⚗️
bit.ly
Alkyne hydrazones for Raman scattering spectroscopy
We explored alkyne-functionalized hydrazone photoswitches and enhanced their performance, achieving improved UV resolution, higher photostationary states, and tunable alkyne shifts (up to 34 cm−1), es...
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Grace Han @gracegdhan.bsky.social · 01/07/2025
After 7 incredible years at Brandeis, I'm excited to start a new chapter at UCSB Chemistry today 😊 I'm forever grateful to my wonderful colleagues at Brandeis for their support. Looking forward to building an interdisciplinary program in materials & energy @ucsb.bsky.social 🌴☀️🔋
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moth-poulsen.bsky.social @moth-poulsen.bsky.social · 30/06/2025
Excited to share the publication of our automated characterisation platform for measuring the quantum yield and half life of molecular photoswitches. The method is easy to use and reduce also the needed amount for characterisation. #chemsky #molswitch pubs.rsc.org/en/content/a...
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Steve Goldup @sgoldup.bsky.social · 30/06/2025
Honored to receive the #RSCPrizes Corday-Morgan Mid-Career Prize for Chemistry. Credit has to go to the hard work and creativity of many outstanding researchers over 10 years at 3 institutions (@qmul.bsky.social, @unisouthampton.bsky.social, @unibirmingham.bsky.social). Short🧵
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Olalla Vázquez @olallalab.bsky.social · 28/06/2025
Back🏡-❤️full! Inspiring GRC-Endless gratitude to #AlexLippert & #MindyLevine for making it happen💫An honour to introduce 2 of the BIG GUYS #AmarFlood & #DirkTrauner How powerful it is coming together with purpose & good will. BTW, will we ever agree on molecular machine definition😅?See you soon! 👋🏼👋🏼
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Reposted by Grace Han
Ivan Aprahamian @aprahamian.bsky.social · 26/06/2025
Congrats to Stephen Wright & Cathy Welder on their new paper in J Chem Ed showing how we phased out DCM from undergrad orgo labs @dartmouthartsci.bsky.social. Timely work as many grapple with new EPA regs on DCM use pubs.acs.org/doi/10.1021/... #ChemEd #GreenChemistry #DCM #EPA #Chemsky 🧪⚗️
pubs.acs.org
Elimination of Dichloromethane from the Introductory Organic Chemistry Teaching Laboratory
Recent regulatory action in the United States has made it impractical for many institutions of higher learning to continue the use of dichloromethane in their teaching laboratories. We offer condensed...
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Reposted by Grace Han
Dirk Trauner @dirktrauner.bsky.social · 26/06/2025
Greetings from the GRC on Artificial Molecular Switches and Motors! It’s exciting to see how the field has grown and is moving toward everyday applications—think photoswitchable tattoos!
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Reposted by Grace Han
Flood Group @floodgroup.bsky.social · 29/05/2025
Yay! @gracegdhan.bsky.social for receiving the Cram Lehn Pedersen (CLP) Award in Supramolecular Chemistry at #ISMSC2025
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Ivan Aprahamian @aprahamian.bsky.social · 15/04/2025
Have been waiting for this to come out for a while - what a great feat by Sophie and her team pubs.acs.org/doi/full/10....
pubs.acs.org
Enzyme-Mediated Dynamic Combinatorial Chemistry Enables Large-Scale Synthesis of δ-Cyclodextrin
α-, β-, and γ-cyclodextrins (CDs) are macrocycles formed from six, seven, and eight α-1,4-linked d-glucopyranose units and are industrially produced on ton scales for use as hosts for bioactive guests...
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Matt Fuchter @fuchtermatt.bsky.social · 24/03/2025
@gracegdhan.bsky.social smashing it, as always, during her award lecture at #ACSSpring2025
Grace Han giving a lecture at the ACS national meeting
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Kristin Hutchins @kristinhutchins.bsky.social · 24/03/2025
I am so excited and honored to be named a 2025 ACS WCC Rising Star! Come see the fantastic lineup @acs.org #ACSSpring2025 Monday from 8am-noon in Room 29A!
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Alex Lippert @alexlippert.bsky.social · 20/02/2025
Good news! We have a notice of funding from the DoD Air Force OSR to support the 2025 Molecular Switches and Motors GRC. We will be selecting talks from submitted abstracts soon! Grateful to the scientific community and the DoD Natural Materials and Systems program for their support. Stay strong
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Reposted by Grace Han
Matt Fuchter @fuchtermatt.bsky.social · 30/01/2025
Who wants to come and work with our group @oxfordchemistry.bsky.social on photoswitches and photopharmacology 🙋‍♀️🙋🏻🙋‍♂️ Apply for our open #chempostdoc position now! Deadline 28th Feb. Reposts appreciated #Chemsky my.corehr.com/pls/uoxrecru...
media.tenor.com
a beam of green light is shining on a black background
ALT: a beam of green light is shining on a black background
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Reposted by Grace Han
Alex Lippert @alexlippert.bsky.social · 30/01/2025
Strengthening our scientific community is more important than ever. The 2025 Molecular Switches & Motors GRC brings together scientists in the areas of molecular switches & motors, DNA nanotech, emergent materials, haptics, biological motors, and more. Apply today! www.grc.org/artificial-m...
An aerial photograph of Colby-Sawyer College, the site of the 2025 Artificial Molecular Switches & Motors Gordon Research Conference.
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Reposted by Grace Han
Sarah Reisman @reiswoman.bsky.social · 11/01/2025
Thanks to those who’ve reached out the last few days. I am grateful that my family and home are safe. Many of my friends and colleagues have lost homes. If you want to help Caltech/JPL faculty/students/staff, a relief fund has been established: giving.caltech.edu/areas-to-sup...
giving.caltech.edu
The Caltech and JPL Disaster Relief Fund
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Grace Han @gracegdhan.bsky.social · 18/12/2024
Very grateful for 2025 Marion Milligan Mason Award 🌟 by @aaas.bsky.social Congrats to all fantastic recipients Jessica Lamb @ewerpointe.bsky.social Erin Stache @stache-lab.bsky.social Michelle Calabrese! www.aaas.org/news/four-ch...
aaas.org
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Ivan Aprahamian @aprahamian.bsky.social · 13/12/2024
Our 3D volumetric display is on the front cover of the December issue of Chem! Congrats to all involved including awesome collaborator @alexlippert.bsky.social 🧪⚗️#molswitch #photoswitches bit.ly/4ckn44N
Metalic robotic hands gifting a ref cube in which a blue pyramid is engraved
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Grace Han @gracegdhan.bsky.social · 10/12/2024
Excited and honored to deliver #ChemComm Emerging Investigator Lecture today in #SICC-12 Singapore🌴 Thank you #ChemComm and @roysocchem.bsky.social for the award, Xiaodong & Kailin for joining the ceremony🥂🙏
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Ivan Aprahamian @aprahamian.bsky.social · 21/11/2024
Here is a starter pack for folks into tiny switches and machines. I am sure I missed many. Please let me know if you should be included and I will add you go.bsky.app/EwimNbK
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