Article
Engineering, Manufacturing
Edvinas Skliutas, Danielius Samsonas, Arunas Ciburys, Lukas Kontenis, Darius Gailevicius, Jonas Berzins, Donatas Narbutas, Vytautas Jukna, Mikas Vengris, Saulius Juodkazis, Mangirdas Malinauskas
Summary: Multiphoton photopolymerisation (MPP), also known as 3D nanoprinting, was studied using a wavelength-tunable femtosecond laser. The influence of wavelength on the dynamic fabrication window (DFW) and the control over voxel aspect ratio were investigated. The results show that optimizing the wavelength can significantly improve the efficiency of 3D nanoprinting in various applications.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Article
Chemistry, Multidisciplinary
Sebastian Lamb-Camarena, Fabrizio Porrati, Alexander Kuprava, Qi Wang, Michal Urbanek, Sven Barth, Denys Makarov, Michael Huth, Oleksandr V. Dobrovolskiy
Summary: Magnonics is a rapidly developing field in nanomagnetism, with potential applications in information processing systems. This study demonstrates the fabrication of 3D magnonic nanoconduits using the focused-electron-beam induced deposition (FEBID) technique. The researchers use Brillouin light scattering (BLS) spectroscopy to compare the spin-wave resonances of 2D and 3D nanostructures, revealing significant qualitative differences due to the non-uniformity of the internal magnetic field. This work highlights the additive manufacturing capability of FEBID for magnetic 3D nanoarchitectures and presents the first characterization of FEBID conduits using BLS spectroscopy.
Review
Chemistry, Multidisciplinary
Viviana Maffeis, Lukas Heuberger, Anamarija Nikoletic, Cora-Ann Schoenenberger, Cornelia G. Palivan
Summary: This article reviews the exponential growth of research on artificial cells and organelles, highlighting their potential for advancing fundamental biological processes. It focuses on the construction of artificial cells using micro- and nanoscale polymer-based compartments, exploring their varied chemistry for customizable assembly. The review delves into the architecture, usage, functional aspects, and communication of artificial cells, shedding light on the development of sophisticated multifunctional systems.
Article
Chemistry, Multidisciplinary
Alessandro Alcinesio, Idil Cazimoglu, Gabriella Raye Kimmerly, Vanessa Restrepo Schild, Ravinash Krishna Kumar, Hagan Bayley
Summary: The authors applied modular design to construct modular synthetic tissues, assembling different functional 3D-printed building blocks for storing and releasing reagents, performing logic operations, responding to magnetic fields, and encapsulating living cells. They successfully built synthetic tissues capable of transmitting electrical signals and assembled hybrid tissues composed of both synthetic modules and modules containing living cells. By incorporating mutant protein nanopores within the building blocks, they created modular synthetic tissues with electrical outputs modulated by chemical inputs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Fabrizio Porrati, Sven Barth, Gian Carlo Gazzadi, Stefano Frabboni, Oleksii M. Volkov, Denys Makarov, Michael Huth
Summary: Recent advancements in additive manufacturing have allowed the fabrication of free-shaped 3D objects with micrometer-scale feature sizes. Among these methods, focused electron beam and focused ion beam-induced deposition offer high flexibility and accuracy, providing a wide range of materials for growth. The combination of 3D nanowriting and chemical vapor deposition techniques enables the synthesis of complex core-shell heterostructures, showcasing great potential for unlocking further functionalities.
Article
Physics, Applied
O. V. Dobrovolskiy, N. R. Vovk, A. V. Bondarenko, S. A. Bunyaev, S. Lamb-Camarena, N. Zenbaa, R. Sachser, S. Barth, K. Y. Guslienko, A. V. Chumak, M. Huth, G. N. Kakazei
Summary: Extending 2D nanodisks into 3D nanovolcanoes allows deliberate tuning of higher-frequency eigenmodes without affecting the lowest-frequency mode. These nanovolcanoes can be viewed as multi-mode microwave resonators and 3D building blocks for nanomagnonics.
APPLIED PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Ahmad Moukachar, Katie Harvey, Eva Roke, Katherine Sloan, Cameron Pool, Shabbir Moola, Ameer Alshukri, Danielle Jarvis, Phoebe Crews-Rees, Grace McDermott, Lluan Evans, Jin Li, Christopher Thomas, Sion Coulman, Oliver Castell
Summary: The development of low-cost accessible technologies for rapid prototyping of mechanical components has made engineering tools more accessible to hobbyists and researchers. A similar approach can be applied to the fabrication of soft-matter and biologically compatible materials, enabling advancements in biological research.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Yuseok Kim, Chae Hwa Kim, Tae Hee Kim, Suk Hee Park
Summary: This study developed a biomimetic 3D customizable artificial vascular graft with a highly porous and uniform microscale structure. The graft demonstrated ultrasoft mechanical compliance and biomechanical compatibility similar to native vascular tissues. The use of a nonporous coating selectively reinforced the graft, ensuring practical sutureability for clinical use and alleviating stiffness mismatch issues.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Yuseok Kim, Chae Hwa Kim, Tae Hee Kim, Suk Hee Park
Summary: This study introduces a biomimetic 3D customizable artificial vascular graft with a highly porous and uniform microscale structure, offering excellent mechanical compliance and biocompatibility. The structural arrangement during graft preparation process and clinically confirmed low cytotoxicity lay a foundation for successful clinical application.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Computer Science, Information Systems
Manal El Rhazi, Arsalane Zarghili, Aicha Majda, Ayat Allah Oufkir
Summary: Physical attractiveness has a significant impact on human social life, and people enhance their attractiveness through makeup and plastic surgery. This study introduces a novel system based on Bezier function for analyzing and enhancing the attractiveness of 3D faces.
JOURNAL OF KING SAUD UNIVERSITY-COMPUTER AND INFORMATION SCIENCES
(2022)
Article
Engineering, Manufacturing
Saja Aabith, Richard Caulfield, Omid Akhlaghi, Anastasia Papadopoulou, Shervanthi Homer-Vanniasinkam, Manish K. Tiwari
Summary: Direct-write printing has been instrumental in additive manufacturing, especially in extrusion-based printing, expanding the range of materials and applications. However, the synthesis and preparation of printing inks for direct-write printing can be complex. This study develops a precise 3D printable polymer that allows for the easy prototyping of micrometre-scale silicone structures without the need for cleanroom facilities.
ADDITIVE MANUFACTURING
(2022)
Article
Chemistry, Multidisciplinary
Qing Sun, Christian Dolle, Chantal Kurpiers, Kristian Kraft, Monsur Islam, Ruth Schwaiger, Peter Gumbsch, Yolita M. M. Eggeler
Summary: This study presents a novel in situ electron microscopy approach for investigating the shrinkage dynamics of 3D-printed nanoarchitectures during isothermal pyrolysis. The results reveal significant changes in the kinetic parameters and morphological textures of the 3D objects under different temperatures and atmospheric conditions. Understanding and controlling pyrolysis in 3D structures enables precise modification of shrinkage, creation of tensegrity structures, and promotes development of pyrolytic carbon with custom architectures and properties.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Aaron Haake, Ravi Tutika, Gwyneth M. Schloer, Michael D. Bartlett, Eric J. Markvicka
Summary: A direct ink writing technique has been developed to program the LM microstructure in elastomer composites, enabling the creation of filaments, films, and 3D structures with unique LM microstructures. The printed materials are soft, highly deformable, and can be made locally insulating or electrically conductive using a single ink by controlling the process conditions.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Alyssa L. Troksa, Hannah V. Eshelman, Swetha Chandrasekaran, Nicholas Rodriguez, Samantha Ruelas, Eric B. Duoss, James P. Kelly, Maira R. Ceron, Patrick G. Campbell
Summary: This study developed a ceramic ink compatible with both PμSL and DIW additive manufacturing techniques, allowing for the printing of 3YZ ceramic structures with engineered macro cavities, varying wall thicknesses, and nanoporosity. The research demonstrated the feasibility of using the same ink base for multiple AM techniques through facile composition changes without the need for separate cumbersome ink development processes.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
Tanmay Jain, Yen-Ming Tseng, Chinnapatch Tantisuwanno, Joshua Menefee, Aida Shahrokhian, Irada Isayeva, Abraham Joy
Summary: This study presented the synthesis and characterization of a series of multifunctional polyesters for direct-write 3D printing, showing their potential for biomedical applications. Rheological analysis revealed that these polyesters are unentangled melts, enabling printing at ambient temperatures and temporary physical cross-linking for shape retention in 3D printing.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Raphael Behrle, Vanessa Krause, Michael S. Seifner, Benedikt Koestler, Kimberly A. Dick, Matthias Wagner, Masiar Sistani, Sven Barth
Summary: Si1-xGex nanowires (NWs) were prepared using a single-source precursor with preformed Si-Ge bonds through gold-supported chemical vapor deposition (CVD). The process reduces the control parameters associated with decomposition characteristics and dosing of individual precursors. The synthesized Si1-xGex/Au core-shell NWs exhibit metal-like behavior and show potential for applications in nano- and quantum-electronics.
Article
Chemistry, Multidisciplinary
Jason D. Fowlkes, Robert Winkler, Philip D. Rack, Harald Plank
Summary: This article presents an electron dose compensation strategy, called DBEA, to address the structural artifact issue caused by temperature gradient in 3D nanoprinting using focused electron beam-induced deposition. By modulating the electron dose, the deviations caused by temperature variations can be corrected, thus improving the printing accuracy.
Article
Chemistry, Multidisciplinary
Fabrizio Porrati, Sven Barth, Gian Carlo Gazzadi, Stefano Frabboni, Oleksii M. Volkov, Denys Makarov, Michael Huth
Summary: Recent advancements in additive manufacturing have allowed the fabrication of free-shaped 3D objects with micrometer-scale feature sizes. Among these methods, focused electron beam and focused ion beam-induced deposition offer high flexibility and accuracy, providing a wide range of materials for growth. The combination of 3D nanowriting and chemical vapor deposition techniques enables the synthesis of complex core-shell heterostructures, showcasing great potential for unlocking further functionalities.
Article
Chemistry, Multidisciplinary
Hendrik Kaehler, Holger Arthaber, Robert Winkler, Robert G. West, Ioan Ignat, Harald Plank, Silvan Schmid
Summary: One challenge in nanoelectromechanical systems (NEMS) is the efficient transduction of tiny resonators. In this study, an electromechanical transduction method based on surface acoustic waves (SAWs) is presented, which successfully transduces freestanding nanomechanical platinum-carbon pillar resonators in the first-order bending and compression mode.
Article
Chemistry, Analytical
Andreas Pfuetzner, Barbora Tencer, Boris Stamm, Mandar Mehta, Preeti Sharma, Rustam Gilyazev, Hendrick Jensch, Nicole Thome, Michael Huth
Summary: The Sencell sensor uses osmotic pressure chamber and nano-granular tunneling resistive pressure sensors to measure glucose continuously in a small device. The miniaturized sensors showed reliable pressure changes in benchmark and dynamic glucose tests. The NTR pressure sensor technology successfully reduced the size of the core osmotic pressure chamber by more than 95% without compromising the osmotic pressure signal.
Article
Chemistry, Multidisciplinary
Robert Winkler, Michele Brugger-Hatzl, Lukas Matthias Seewald, David Kuhness, Sven Barth, Thomas Mairhofer, Gerald Kothleitner, Harald Plank
Summary: Magnetic force microscopy (MFM) is extended by the additive direct-write fabrication of magnetic nano-cones via focused electron beam-induced deposition (FEBID) using an HCo3Fe(CO)(12) precursor. Highly crystalline nano-tips with minimal surface contamination and sub-15 nm apex radii are fabricated and benchmarked against commercial products. The results demonstrate high performance during MFM operation and virtually loss-free behavior after almost 8 hours of continuous operation, as well as no performance loss after more than 12 months of storage in ambient conditions for the FEBID-based Co3Fe MFM nano-probes introduced in this study.
Review
Chemistry, Multidisciplinary
Robert Winkler, Miguel Ciria, Margaret Ahmad, Harald Plank, Carlos Marcuello
Summary: Magnetism is crucial in biological systems but the magnetic forces between bodies are often weak, demanding ultra-sensitive tools for sensing. Magnetic force microscopy (MFM) provides high lateral resolution and the capability for single-molecule studies. This comprehensive review highlights the importance of magnetic forces in biological applications, describes the working principles of MFM, and focuses on novel fabrication procedures to enhance magnetic response signals.
Article
Chemistry, Multidisciplinary
Robert Winkler, Michele Brugger-Hatzl, Fabrizio Porrati, David Kuhness, Thomas Mairhofer, Lukas M. Seewald, Gerald Kothleitner, Michael Huth, Harald Plank, Sven Barth
Summary: This study provides solid evidence on the decomposition process of the HFeCo3(CO)(12) precursor, emphasizing the influence of microstructure and composition on the properties of electron beam-induced deposits. It reveals the activity of different fragmentation channels during single-spot growth processes.
Article
Chemistry, Multidisciplinary
Sebastian Lamb-Camarena, Fabrizio Porrati, Alexander Kuprava, Qi Wang, Michal Urbanek, Sven Barth, Denys Makarov, Michael Huth, Oleksandr V. Dobrovolskiy
Summary: Magnonics is a rapidly developing field in nanomagnetism, with potential applications in information processing systems. This study demonstrates the fabrication of 3D magnonic nanoconduits using the focused-electron-beam induced deposition (FEBID) technique. The researchers use Brillouin light scattering (BLS) spectroscopy to compare the spin-wave resonances of 2D and 3D nanostructures, revealing significant qualitative differences due to the non-uniformity of the internal magnetic field. This work highlights the additive manufacturing capability of FEBID for magnetic 3D nanoarchitectures and presents the first characterization of FEBID conduits using BLS spectroscopy.
Article
Physics, Multidisciplinary
Heinz-Juergen Schmidt, Christian Schroeder
Summary: Small spin systems at the interface between analytical studies and experimental application have been extensively investigated. The spin ring with uniform antiferromagnetic interaction serves as a completely integrable system, both quantum mechanically and classically. In this study, we derive analytical expressions for various thermodynamic quantities and confirm the results through numerical tests. By comparing quantum mechanical quantities for increasing spin quantum numbers with their classical counterparts, we find a good agreement, except for the low temperature region, which shrinks with increasing spin.
Article
Education, Special
Jason D. Fowlkes, Robert Winkler, Philip D. Rack, Harald Plank
Summary: 3D nanoprinting using focused electron beam-induced deposition is susceptible to structural distortions caused by temperature gradients. In this study, an electron dose compensation strategy called the Decelerating Beam Exposure Algorithm (DBEA) is proposed to correct for nanowire bending during computer-aided design. The DBEA utilizes an analytical solution derived from 3D nanoprinting simulations to offset undesired heating effects. This compensation strategy has the potential to improve the fidelity of 3D nanoscale printing.
RESEARCH IN AUTISM SPECTRUM DISORDERS
(2023)
Article
Chemistry, Multidisciplinary
Jason D. Fowlkes, Robert Winkler, Philip D. Rack, Harald Plank
Summary: 3D nanoprinting using focused electron beam-induced deposition often results in structural artifacts caused by temperature gradients during the deposition process. Researchers have developed an electron dose compensation strategy to correct for these artifacts and improve the precision of 3D nanoprinting.
