publikace
Co-glass and blue pigment smalt production at the turn of the 15th/16th centuries: LA-ICP-MS study
This study investigates the origins and technological development of cobalt-coloured blue glass and smalt pigment production in the 15th–16th centuries in the Ore Mountains region. By analysing glass melts, archaeological glass, metallurgical slag and paint micro-samples, the authors identify distinct elemental signatures linked to changing raw materials and production methods. The results provide new insights […]
Fat or flat? The impact of dipole moment vectors on non-covalent interactions between aromatic tags and macromolecules
This study demonstrates that replacing a planar phenyl group with a 3D ortho-carborane cage in a peptidomimetic inhibitor significantly enhances binding to the parasitic protease SmCB1 and improves anti-schistosomal activity. Structural and quantum-mechanical analyses reveal that this improvement arises from a unique CH-based hydrogen bond and strong electrostatic interactions driven by the large dipole moment […]
Smart Materials for Water Purification: A New Catalyst Breaks Down Pharmaceutical Residues Even Without Light
The study explores the underlying mechanisms that allow this dual-function catalyst to work both in light and in darkness – without external energy input. The material combines copper, manganese, and titanium oxides to initiate two distinct degradation pathways. It decomposes diclofenac within minutes, offering a promising strategy for sustainable water treatment. The results were published […]
Hungarian Mine Green”, a Semi-Natural Copper Pigment From Banská Bystrica Region (Slovakia) – Analytical Evidence and Laboratory Replication
This study presents the results of a comprehensive investigation of the “Hungarian mine green” pigment which was precipitated from drainage water containing basic Cu sulfates and represented an important commodity with the peak of its production in 16th and 17th century in Banská Bystrica region (Slovakia). Morphological and compositional fingerprints of this pigment have been […]
High Temperature Interactions of Lead Palmitate with Linseed Oil
This study reveals that heating lead palmitate in linseed oil leads to the formation of mixed lead palmitate–stearate compounds and a metastable high-temperature polymorph with unique structural features. These transformations, even at moderate heating, suggest complex chemical changes that may contribute to long-term degradation in oil paintings. The findings emphasize the need for careful temperature […]
Cationic Polyhedral Chalcogenaboranes: Activation without breaking Wade’s Rules
This study reports the first cationic chalcogenaboranes that retain the same skeletal electron pair count as their neutral counterparts, defying Wade’s rules. The ionization significantly enhances their electrophilicity, enabling reactions with very weak bases. Furthermore, it allows for regioselective control over interactions with hard and soft bases by modulating the LUMO. https://onlinelibrary.wiley.com/doi/10.1002/anie.202419677
Site-specific substitution in atomically precise carboranethiol-protected nanoclusters and concomitant changes in electronic properties
This study presents the synthesis and structural modification of a silver-based nanocluster [Ag17(o1-CBT)12]3- (Ag17) by incorporating Au and Cu at specific sites, forming AuAg16, Ag13Cu4, and AuAg12Cu4. These modifications systematically alter their structural, electronic, and optical properties, with Au stabilizing the core and Cu enhancing photoluminescence and prolonging excited-state lifetimes. The study demonstrates a tunable […]
Expanding Luminescence Horizons in Macropolyhedral Heteroboranes
The macropolyhedral compound anti-B18H22 was long thought to be the only boron hydride compound that exhibited fluorescence when illuminated with ultraviolet light. We have recently shown that new and, indeed, some previously known macropolyhedral compounds, containing sulphur or selenium, and exhibiting a wide range of structural types, possess luminescent properties. https://onlinelibrary.wiley.com/doi/full/10.1002/ange.202401872