Sami & Mika make the back cover of Advanced Optical Materials

Our back cover picture has been published in the Advanced Optical Materials journal! The image depicts hackmanite crystal’s coloration mechanism upon X-ray exposure where electron and hole cascades create a color center. The original idea and graphics, which was accepted by the journal, was made by Adj. Prof. Mika Lastusaari:

PhD student Sami Vuori then refined it a bit with Gimp by creating the final version. The picture is related to our article Detection of X-Ray Doses with Color-Changing Hackmanites: Mechanism and Application, which was published in this journal:

Sami’s article receives attention in newspapers and magazines

IMC group and our whole chemistry department has received attention from various newspapers and magazines with PhD student Sami Vuori‘s article (corresponding author Adjunct Professor Mika Lastusaari) that was recently published in Advanced Optical Materials: “Detection of X-Ray Doses with Color-Changing Hackmanites: Mechanism and Application“. In addition to showing a practical application, the article also reveals the mechanism of hackmanite’s coloration upon X-ray exposure, which has never been researched thoroughly before.

Image by Sami Vuori.

In the article, Sami imaged a dead body of an ant using a film with hackmanite powder on it. When the X-rays hit the film, the hackmanite colors from natural white to pink, and since the ant’s body attenuates X-rays, some photons are absorbed in it and won’t color the film. This is a simple method, which does not require any expensive analyzers since one can see the result directly.

Image by Sami Vuori.
Image by Sami Vuori.

The article was an international joint effort consisting of researchers from the University of Turku (PhD student Sami Vuori, Adjunct Professor Mika Lastusaari, Dr. Isabella Norrbo, Professor Petriina Paturi, Professor Timo Saarinen and University Teacher Heikki Palonen), University of São Paulo in Brazil (Dr. Lucas C. V. Rodrigues), Karlsruhe Institute of Technology (Dr. Jörg Göttlicher and Dr. Ralph Steininger) and University of Lyon (PhD student Pauline Colinet, Assistant Professor Tangui Le Bahers).

Pasi and Anssi make the cover picture for Dalton Transactions!

Several years’ worth of active efforts to understand vanadium-catalyzed catechol oxidase mimetic chemistry have finally paid off in full. In our most recent paper, entitled “Vanadium aminophenolates in catechol oxidation: conformity with Finke’s common catalyst hypothesis“, published in the RSC journal Dalton Transactions, and representing the pinnacle of these studies, we have been able to link vanadium-catalyzed catechol oxidase and catechol dioxygenase mimetic studies for the first time. The paper will make a great addition to Pasi’s PhD thesis, especially since the following study gives a nice closure to work already started at the MSc level!

The article, which can be found at doi: 10.1039/d1dt00419k, was so well received by the reviewers and editors, that it was not only added to the HOT article collection at Dalton Transactions, but also granted a place at the Front Cover of the current issue!

Cover art: Pasi Salonen & Anssi Peuronen

Press release: scientists (Ari, Anssi, Pasi) discover new information about the function of enzymes

Ari, Anssi, Pasi and Åbo Akademi’s project researcher Risto Savela discovered new information about the functionality of vanadium aminophenolates in cathecol oxidation. The article is published in Dalton Transactions and was selected to their HOT article collection. Good job!

Press release (in Finnish):

Tutkijat löysivät uutta tietoa entsyymien toiminnasta


Vanadium aminophenolates in catechol oxidation: conformity with Finke’s common catalyst hypothesis

Natural hackmanite paper spreads everywhere

It seems that the natural hackmanite article published in Chemistry of Materials has spread wider than we could ever imagine. It has now been found in 17 different sources from 5 different language regions throughout the world, and there will probably be even more during the coming months.

Check the links from this list:

IMC’s hackmanite research gets country-wide attention in two major newspapers

We wrote a press release based on our hackmanite research article in the high-impact Chemistry of Materials journal. The news was published on University of Turku’s website, and it spread instantly to Finland’s biggest newspaper Helsingin Sanomat and also to a Turku-based newspaper Aamuset:

Tutkijat selvittivät, miksi luonnonkivi loistaa pimeässä – Hackmaniitin ytimessä hehkuu titaaniHelsingin Sanomat 23/10/2020

Pimeässä loistavan luonnonkiven salaisuus selvisi tuoreessa tutkimuksessaAamuset 23/10/2020

Congratulations Cecilia and Sami!

The first paper for Cecilia and Sami was just accepted for publication in Chemistry of Materials. The paper is entitled “Hackmanite – the natural glow-in-the-dark material” and it will be published soon in open access.

Great work from Cecilia, Sami and the truly multidisciplinary international collaborator group!

Photo by Adefunke Koyejo.

Esko Salojärvi’s first article

Our PhD student Esko Salojärvi had a big step towards his PhD dissertation as he had his first article published recently. The article’s information can be found below:

Salojärvi, E., Peuronen, A., Huhtinen, H., Vlasenko, L. S., Halme, J., Mäkinen, P., Lastusaari, M., Lehtonen, A. “NIR-absorbing transition metal complexes with redox-active ligands” Inorg. Chem. Comm. 112 (2020) 107711.
Read online:

Good work, Esko!

Two new collaboration publications about glasses

Check out these two new collaboration publicatoins about persistent luminescence in glass materials.

Ojha, N., Trautvetter, T., Norrbo, I., Kallide, A., Lastusaari, M., Mueller, R., and Petit, L. “Sintered silica bodies with persistent luminescence” Scripta Mater. 166 (2019) 15-18.
Read online:

Szczodra, A., Kuusela, L., Norrbo, I., Mardoukhi, A., Hokka, M., Lastusaari, M., Petit, L., “Successful preparation of fluorine containing glasses with persistent luminescence using the direct doping method” J. Alloy Compd. 787 (2019) 1260-1264.
Read online: