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Grace Han

@gracegdhan.bsky.social

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

18 Posts695 Follower104 Folgt
Jake Yeston@jakeyeston.bsky.social · 4mo ago

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!

Science Magazine@science.org · 4mo ago

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: https://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
Jake Yeston@jakeyeston.bsky.social · 6mo ago

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/...

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...

science.org

Shao-Liang Zheng@shaoliangzheng.bsky.social · 8mo ago

🚀 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

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...

doi.org

Research Corporation for Science Advancement@rescorp.org · 9mo ago

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.

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...

rescorp.org

Ivan Aprahamian@aprahamian.bsky.social · last yr.

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 🧪⚗️

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...

bit.ly

Grace Han@gracegdhan.bsky.social · last yr.

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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Ivan Aprahamian@aprahamian.bsky.social · last yr.

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 🧪⚗️

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...

pubs.acs.org

Dirk Trauner@dirktrauner.bsky.social · last yr.

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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Ivan Aprahamian@aprahamian.bsky.social · last yr.

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....

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...

pubs.acs.org

Bethany Halford@bethanyhalford.bsky.social · last yr.

Little is known about what delta-cyclodextrin, a 9-sugar macrocycle, can do because it's been tough to make in large quantities. A new scaled-up synthesis from Sophie Beeren's group could change that. My latest for @cenmag.bsky.social. cen.acs.org/synthesis/pr...

Alex Lippert@alexlippert.bsky.social · last yr.

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