1. Two-photon 3D printing of functional microstructures inside living cellsMaruša Mur, Aljaž Kavčič, Uroš Jagodič, Rok Podlipec, Matjaž Humar, 2026, izvirni znanstveni članek Povzetek: 3D printing is transforming manufacturing and biomedicine, yet it has not been demonstrated inside living cells. Additionally, there is no method to deliver micron-scale, free-standing solid microstructures directly into the cytosol of non-phagocytic cells. Here, both of these challenges are addressed by fabricating custom-shaped polymeric microstructures directly inside living cells using two-photon polymerization. A bio-compatible photoresist is injected into cells and selectively polymerized with a femtosecond laser, creating intracellular structures with submicron resolution. Structures of various shapes are printed in live cells, including a 10 elephant, barcodes for cell tracking, diffraction gratings for remote readout, and microlasers. The printed structures in cells can affect the cell biology. The demonstrated top-down intracellular biofabrication approach, combined with functional photoresists, may enable new applications in intracellular sensing, biomechanical manipulation, bioelectronics, and targeted drug delivery. These embedded structures could provide novel control over the intracellular environment, allowing engineering of cellular properties beyond natural limits and genetic engineering.
Ključne besede: living cells, polymeric microstructure
Objavljeno v DiRROS: 27.01.2026; Ogledov: 187; Prenosov: 102
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2. How vegetation alters the properties of raindropsKatarina Zabret, Mark Bryan Alivio, Urša Vilhar, Mojca Šraj, Nejc Bezak, Klaudija Lebar, Andrej Vidmar, 2025, objavljeni povzetek znanstvenega prispevka na konferenci Povzetek: The process of rainfall interception is an important part of the hydrological cycle in many regions. The rainfall which is intercepted by vegetation evaporates into the atmosphere, while throughfall and stemflow contribute to runoff generation, control soil moisture and affect soil erosion. These topics are closely connected to the aims of the ongoing bilateral research project between University of Ljubljana, Slovenian Forestry Institute and TU Wien. The project focuses on the understanding of the effect of meteorological and vegetation characteristics on changes in raindrop microstructure. The rain drop diameter and velocity of raindrops under vegetation, which reach the ground by dripping from leaves and branches as throughfall, are different than diameter and velocity of rain drops above the canopy.
Ključne besede: rainfall interception, rainfall erosivity, rainfall microstructure, hydrology
Objavljeno v DiRROS: 21.01.2026; Ogledov: 147; Prenosov: 87
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3. Designing the thermal processing of ▫$Ba(Ti0.8Zr_{0.2})O_3 - (Ba_{0.7}Ca_{0.3})TiO_3▫$ thin films from ethylene glycol-derived precursorSabi William Konsago, Katarina Žiberna, Jernej Ekar, Janez Kovač, Barbara Malič, 2024, izvirni znanstveni članek Ključne besede: chemical solution deposition, thin films, crystallinity, dielectric permittivity, microstructure
Objavljeno v DiRROS: 16.01.2026; Ogledov: 214; Prenosov: 83
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4. Engineering the microstructure and functional properties of ▫$0.5Ba(Zr_{0.2}Ti_{0.8})O_3‑0.5(Ba_{0.7}Ca_{0.3})TiO_3$▫ thin filmsSabi William Konsago, Katarina Žiberna, Aleksander Matavž, Barnik Mandal, Sebastjan Glinšek, Yves Fleming, Andreja Benčan, Geoff Brennecka, Hana Uršič Nemevšek, Barbara Malič, 2024, izvirni znanstveni članek Ključne besede: chemical solution deposition, thin films, crystallinity, dielectric permittivity, piezoelectric response, energy storage, microstructure
Objavljeno v DiRROS: 15.01.2026; Ogledov: 244; Prenosov: 275
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5. Numerical simulation and experimental verification of heat treatment of a saddle hollow tubeWeichi Pei, Jiawang Zhang, Rongdi Yu, Qing Huang, Shengqiang Liu, Menglong Xing, Hongchao Ji, 2025, izvirni znanstveni članek Ključne besede: 42CrMo steel, numerical simulation, microstructure, phase transformation mechanism
Objavljeno v DiRROS: 07.01.2026; Ogledov: 366; Prenosov: 147
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6. Influence of remelting on ▫$AlSi_9Cu_3(Fe)$▫ alloy propertiesZdenka Zovko Brodarac, Franjo Kozina, Davor Stanić, Martin Folta, Jože Medved, Jaka Burja, 2025, izvirni znanstveni članek Ključne besede: recycling potential, quality, AlSi9Cu3(Fe) alloy, solidification, thermodynamics, microstructure
Objavljeno v DiRROS: 24.12.2025; Ogledov: 360; Prenosov: 127
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7. DED-LB manufactured Ti–6Al–4V–4Cu alloy : materials development, characterization, and in vivo biocompatibilityAndrej Jeromen, Anish Nair, Peter Rodič, Denis Sačer, Barbara Kapun, Maša Čater, Ana Brunčić, Katarina Kozlica, Radmila Milačič Ščančar, Andrej Cör, Edvard Govekar, Ingrid Milošev, Simon Horvat, 2025, izvirni znanstveni članek Ključne besede: Ti–6Al–4V–4Cu alloy, additive manufacturing, laser-based directed energy deposition (DED-LB), microstructure and phase analyses, corrosion, in vivo biocompatibility
Objavljeno v DiRROS: 10.11.2025; Ogledov: 343; Prenosov: 168
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8. Effect of hardening on the magnetic behavior of AISI 1045 steelMario Vukotić, Damijan Miljavec, Jaka Burja, 2025, izvirni znanstveni članek Povzetek: Hardening is an effective method to improve the hardness of the steel construction elements of an electric machine, such as rotor shaft. Surface hardening is typically employed for shafts as it provides a material with hard wear-resistant surface (martensite) and tough and ductile core (ferrite and pearlite), with the transitional zone between them (martensite, ferrite, and pearlite). The investigations were performed on the specimens of AISI 1045 steel, which is commonly used in electric machines. There were three categories of specimens, each of them representing a region in a surface hardened shaft – normalized specimens found in as-delivered steel (core), partially hardened specimens obtained by partial hardening of normalized specimens (transitional zone), and fully hardened specimens (hardened surface), also obtained from the normalized steel. Comparison of the magnetization curves showed that partially and fully hardened specimens exhibited a decrease of saturation magnetic flux density for about 11% and 7%, respectively, compared to the normalized specimens. The magnetizing curves from this study can be directly used in the magnetic simulations of a surface-hardened shaft. This allows more accurate electromagnetic design of electric machines, in which the shaft represents an important part of the magnetic circuit, e.g. two-pole wound-rotor synchronous machine.
Ključne besede: electric machine, hardening, hysteresis loop, magnetic properties, magnetizing curve, microstructure, shaft
Objavljeno v DiRROS: 16.10.2025; Ogledov: 373; Prenosov: 185
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9. Effects of manganese dioxide and sintering temperature on the properties and microstructure of a secondary-aluminum-ash ceramic proppantYongming Zeng, Naichen Xiao, Haiping Yang, Peipeng Yang, Fei Yan, Sifeng Bi, Ruien Yu, 2025, izvirni znanstveni članek Ključne besede: ceramic proppant, secondary aluminum ash, crushing rate, microstructure
Objavljeno v DiRROS: 08.10.2025; Ogledov: 506; Prenosov: 236
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