Still Not Feeling the Same After COVID-19? You’re Not Alone The physical and mental effects of COVID-19 can linger for months and even years.

My wife @laurenwisk.bsky.social is in Time magazine!

time.com/7292910/covi...

Men's testosterone levels declined in last 20 years A new study has found a "substantial" drop in U.S. men's testosterone levels since the 1980s, but the reasons for the decline remain unclear. This trend also does not appear to be related to age.

Yes-ish. Possibly due to increased BMI and decreased smoking. www.reuters.com/article/busi...

Now this is welcome news. It’s spine-growing time!

Vibronic Engineering for Quantum Functional Groups ConspectusChemists have a firm understanding of the concept of a functional group: a small molecular moiety that confers properties (reactivity, solubility, and chemical recognition) onto a larger sca...

A summary of some work I have had the pleasure to contribute to. Weird molecules that *may* be the future of QIS.
pubs.acs.org/doi/full/10....

Thanks!

Wow! Have you guys reported uv-vis spectra of compound 1? The one that is 4f1?

I’m in this! Thanks Harriett!

Why don’t molecules ever stop moving? This ‘deceptively simple’ question demands a dip into the murky waters of quantum physics.

I’m in popular science! www.popsci.com/science/why-...

Finally, pray for me as I single parent for a few days a 3 year old todder 😭.

Finally, come see me talk about molecular j-aggregates at 2:30 on monday in room 32B, the same light-matter symposium!

See my other student Yongjia He talk about quantum sensing at 9:20AM on wednesday in Hall F room 3 in the QIS symposia!

Go see my student Ash Sueh Hua talk about fluorescent optical cycling at 10:45AM tomorrow in room 32B in the light-matter interactions symposia!

Going to @acs.org spring meeting! Come to my symposium "QIS for chemistry and chemistry for QIS" in Hall F, room 3! ttps://phys-acs.org/wp-content/uploads/2025/03/PHYS008-SD-Program_FINAL.pdf

I am left to ask, what’s the point of capitulating to people who despise you? I’m not here to just produce science points like some kind of perverse sims game.

Mapping philanthropic support of science - Scientific Reports Scientific Reports - Mapping philanthropic support of science

Its a bit more than I thought, but its not "most", significantly less than half.
www.nature.com/articles/s41...

Since Saquon went to a high school that played against my high school I feel a special kinship with this Eagles team. Let's go Birds, Allentown represent...

😭

I just deactivated my twitter account. Not one red cent to the Nazi.

RIP Sir Fraser Stoddart

chemsky ⚗️🧪

Beautiful work John, as per usual.

Congrats!!

Or systems that are pathologically protected (e.g. nv center in diamond)

I wish this is how molecular photophysics worked. But alas, relaxation is really fast in the condensed phase. Very few coherent processes survive. The rare cases that coherence matters are when processes are also fast (energy transfer), or somehow the coherence is protected (e.g. triplets).

To elaborate, there is a vibronic shoulder at ~1000 cm-1, 33 fs period. Relaxation time scale is probably about 300 fs (generously). so 9 ish periods. Is that the mechanism of action? Alternative explanations could be lower QY (and more thermal radiation) exciting the shoulder as well.

I may have missed it, but I see no conclusive proof here that it isnt just excess thermal energy by exciting at a specific band.

Ok, I read the paper, and I am not convinced. Yes the excited a vibrational shoulder, and that vibration is "coherent" but going by the width of the vibrational shoulder, and standare relaxation times probably only over like 5 periods (as someone who has extensively studied this).

Molecular jackhammers eradicate cancer cells by vibronic-driven action - Nature Chemistry In contrast to photothermal therapy requiring high powers over extended times and photodynamic therapy being abrogated by inhibitors of reactive oxygen species, actuation of vibronic modes in single m...

While I like the idea, this is a plasmon, by definition all excitations are plasmons.

www.nature.com/articles/s41...

Let’s play “why is my toddler crying?”

Today it’s because we are not heating up her fruit with her leftover hamburger.