Pauline Colinet from Lyon visits IMC

We had the pleasure of having PhD student Pauline Colinet from the University of Lyon in France visit us for a couple of days. Pauline will be having her dissertation defense about computational chemistry early next year and wanted to come here to learn how we make hackmanite and do its measurements. For her part, Pauline showed what the sophisticated batch files of computational chemistry look like and how she commands the massive calculation clusters. We have collaborated a lot with her, and hopefully the collaboration will continue in the future! Splendid couple of day with her!

New photoluminescence spectrometer – meet Skye

This is our newest instrument, the Edinburgh Instruments FLS 1000 photoluminescence spectrometer. We are very excited for this because it has a wide detection range deep into the infrared range, ability to measure fluorescence lifetimes, quantum yield, time-resolved emission and excitation scans and many other gorgeous features. Edinburgh Instruments’ product engineer Peter Linton was instructing us for three days about how to operate the machine. We also had to give it a traditional Scottish name: it became Skye (thanks to Peter for the name suggestion).

For this great instrument, we thank Prof. Kati Miettunen, Prof. Jarno Salonen, Dr. Taina Laiho, Dr. Heikki Palonen and the whole Finnish Research Infrastructure for Characterization and Aging of Surfaces and Materials for the Local Businesses and Environmental Economy (Casual Bee) team in Turku. See https://sites.utu.fi/casualbee/en/

Some additional photos:

Zamaneh’s last day, Sami sees his teacher after 14 years

Every year we have one or two interns from Turku Vocational Institute (Turun ammatti-instituutti). Teacher Jouni Jantunen and doctoral candidates Sami and Hannah held a skills demonstration review for our intern Zamaneh Baradari who spent her last day here at IMC. The joy of reunion was immense because Jouni was Sami’s physical chemistry and chemistry calculations teacher in the vocational institute in 2004–2007, and they hadn’t seen each other after 2007 before this day.

Jouni (left) and Sami.

Let’s meet next year again, Jouni!

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).

Public outreach lecture about chemistry

As a public outreach, Adj. Prof. Mika Lastusaari had a presentation about chemistry in one of Turku Teacher Training School’s IB line’s Integrated Science course visitor lectures. Hannah and Sami also got to tell why they have come to study chemistry and what inspires them, and also demonstrated color change and afterglow with the compulsory praise for inorganic chemistry! The “set” is shown in the photos.

Gathering for Pasi’s research visit to Austria

Yesterday Pasi Salonen held a small gathering for his last day before leaving for a research visit to Graz, Austria. Pasi is confident to gather vital data for his PhD thesis and was, as many members of the team, especially excited to go to the place where Arnold Schwarzenegger is from. We wish him a pleasant stay in Graz, and as Pasi himself stated, we’ll see in no time! Hasta la vista!

GlowTrack kickoff meeting in Tampere

On Friday, Jan 10, 2020 we held the kickoff meeting for the Academy of Finland-funded GlowTrack project in the beautiful city of Tampere. We were warmly welcomed by the people of Tampere University: we had a tour in the laboratory facilities, discussed about ice hockey and had a mutual agreement on how to proceed with the project. We will eagerly be executing it in collaboration with the Tampere team.

From left to right: Adj. Prof. Mika Lastusaari (University of Turku), DI Agata Szczodra (Tampere University) , Assoc. Prof. Laeticia Petit (Tampere University), PhD Alexander Veber (Tampere University), MSc Sami Vuori (University of Turku) and Assoc. Prof. Jonathan Massera (Tampere University).

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: http://dx.doi.org/10.1016/j.scriptamat.2019.02.044

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: http://dx.doi.org/10.1016/j.jallcom.2019.02.075

New publications

Some new publications added into the year 2019! You can choose to read about oxovanadium complexes or if you’re more interested in luminescent materals you can choose between clays and glass materials.

Ojha, N., Tuomisto, M., Lastusaari, M., and Petit, L. “Phosphate glasses with blue persistent luminescence prepared using the direct doping methods” Opt. Mater. 87 (2019) 151-156.
Read online: http://dx.doi.org/10.1016/j.optmat.2018.03.063

Santos, H.S., Laihinen, T., Rodrigues, L.C.V., Sinkkonen, J., Mäkilä, E., Damlin, P., Nakamura, L.K.O., Brito, H.F., Hölsä, J., and Lastusaari, M., “Red- and green-emitting nano-clay materials doped with Eu3+ and/or Tb3+Luminescence 1 (2019) 23-38.
Read online: http://dx.doi.org/10.1002/bio.3561

Sobhanadhas, L.S., Kesavan, L., Lastusaari, M., and Fardim, P., “Layered Double Hydroxide-Cellulose Hybrid Beads: A Novel Catalyst for Topochemical Grafting of Pulp Fibers” ACS Omega 4 (2019) 320-330.
Read online: http://dx.doi.org/10.1021/acsomega.8b03061

Hossain, M.K., Haukka, M., Lisensky, G.C., Lehtonen, A., and Nordlander, E. “Oxovanadium(V) complexes with tripodal bisphenolate and monophenolate ligands: Syntheses, structures and catalytic activities” Inorg. Chim. Acta 487 (2019) 112-119.
Read online: http://dx.doi.org/10.1016/j.ica.2018.11.049