Summer reading about science and a little around it.

Read the latest issue of IJS News.

https://ijs.si/ijsw/Novice%20IJS (pdf. file)

The main purpose of the conference is to encourage collaboration between younger and well-established Slovenian researchers and other users of microscopic techniques working in the fields of life science, material science, and industry. In addition to presenting the latest achievements in microscopy, the conference is also intended to showcase the activities of various groups using microscopic techniques at all levels of resolution.

The registration fee is 100 EUR for members of the Slovenian Society for Microscopy and 150 EUR for non-members, including participation in the symposium, abstract book, coffee breaks, and lunch on Friday. We have negotiated a special rate for accommodation with Hotel Superior on Rogla, including full board. When making a hotel reservation (reservation email: rogla@unitur.eu), please mention that you will be attending the SDM 2024 meeting.

Registrations, submission of contributions, and more information about the conference can be found on the website: https://www.mikroskopsko-drustvo.si/posvet/.

The deadline for abstract submissions is April 1, 2024, and the hotel reservation deadline is May 2, 2024.

See you at Rogla!

Collaborations with the Center for Electron Microscopy and Microanalysis, Department of Surface Engineering and Chemical Institute.

https://onlinelibrary.wiley.com/doi/10.1002/adma.202308027

In the article Mnemonic Rutile-Rutile Interfaces Triggering Spontaneous Dissociation of Water (doi: 10.1002/adma.202308027), Vesna Ribić, Vanja Jordan, Aleksander Rečnik, Sandra Drev, Janez Kovač and Goran Dražić demonstrate that epitaxial rutile fibers grown in acidic conditions are capable of conveying their structurally encoded properties into a neutral medium when re-immersed. Their very specific translation state triggers spontaneous cracking of the O─H bond resulting in water dissociation.

Water interaction with mineral surfaces is a complex living system decisive for any photocatalytic process. Resolving the atomistic structure of mineral–water interfaces is thus crucial for understanding these processes. Fibrous rutile TiO₂, grown hydrothermally on twinned rutile seeds under acidic conditions, is studied in terms of interface translation, atomic structure, and surface chemistry in the presence of water, by means of advanced microscopy and spectroscopy methods combined with structure modeling and density functional theory calculations. It is shown that fibers while staying in stable separation during their growth, adopt a special crystallographic registry that is controlled by repulsion forces between fully hydroxylated and protonated (110) surfaces. During relaxation, a turbulent proton transfer and cracking of O─H bonds is observed, generating a strong acidic character via proton jump from bridge ─OH^b to terminal ─OH^t groups, and spontaneous dissociation of interfacial water via a transient protonation of the ─OH^t groups. It is shown, that this specific interface structure can be implemented to induce acidic response in an initially neutral medium when re-immersed. This is thought to be the first demonstration of quantum-confined mineral–water interface, capable of memorizing its past and conveying its structurally encoded properties into a new environment.

A zoomable electron backscatter image of a CoFeNi High Entropy Alloy sample after electrochemical etching, acquired on our Verios G4 SEM. The sample was prepared by Barbara Ljubec Božiček.