Article
Polymer Science
Guangyue Zu, Marnix Meijer, Olga Mergel, Heng Zhang, Patrick van Rijn
Summary: The hierarchical nature of ECM allows for storage of small biomolecules, while nanogels are versatile tools in nanomedicine due to their simplicity of chemical control and biological compatibility. This study presents a stable hierarchical nanogel-GelMA composite hydrogel system with the potential to achieve in situ delivery and controllable release of bioactive molecules in 3D cell culture systems.
Article
Chemistry, Multidisciplinary
Nicholas A. Sather, Hiroaki Sai, Ivan R. Sasselli, Kohei Sato, Wei Ji, Christopher Synatschke, Ryan T. Zambrotta, John F. Edelbrock, Ryan R. Kohlmeyer, James O. Hardin, John Daniel Berrigan, Michael F. Durstock, Peter Mirau, Samuel Stupp
Summary: Liquid crystalline hydrogels can be 3D printed from aqueous supramolecular polymer inks, with pH and salt concentration influencing intermolecular interactions and ink viscosity. Enhanced hierarchical interactions in high viscosity inks lead to greater nanoscale alignment, enabling the creation of materials with anisotropic properties and scaffolds that promote cell alignment.
Article
Chemistry, Multidisciplinary
Hiroyuki Tetsuka, Lorenzo Pirrami, Ting Wang, Danilo Demarchi, Su Ryon Shin
Summary: The integration of flexible and stretchable electronics into biohybrid soft robotics can enable the fabrication of new biohybrid soft machines with various applications. Using wireless transmission of electrical power, untethered biohybrid soft robots capable of swimming motions have been developed. By differentiating induced pluripotent stem cell-derived cardiomyocytes on wireless-powered cell stimulators, the native myofiber architecture is replicated with enhanced contractibility. The wirelessly modulated electrical frequencies control the speed and direction of the robots.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Polymer Science
Huan Hong, Menglei Hu, Liansong Dai
Summary: This paper utilized 3D printing technology to prepare resin honeycomb materials with different levels and studied their mechanical properties. The study revealed that multi-level hierarchical honeycomb (MHH) has better mechanical properties compared to single-level hierarchical honeycomb (SHH). Increasing the hierarchical level of honeycomb can improve the mechanical properties of the materials.
Article
Engineering, Manufacturing
Eliezer F. Oliveira, Rushikesh S. Ambekar, Douglas S. Galvao, Chandra S. Tiwary
Summary: This study proposes and tests a new approach to create hierarchical porous structures with a radial gradient in mass density. By exploiting the topology of two carbon-based families with different pore sizes, atomistic models were created and 3D printed. Simulations and mechanical tests show that the mechanical response of these gradient structures can be engineered and outperform their density uniform counterparts.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Ladislav Cvrcek, Jan Krcil, Jana Musilkova, Veronika Musilkova, Lucie Bacakova, Vaclav Nehasil, Frantisek Denk, Zdenek Cejka
Summary: In this study, a PEEK material with a gradient surface topography and suitable chemical composition was prepared by 3D printing and coating with a nanostructured TiNb layer. The surface properties and biological activity were analyzed, and the results showed that the nanostructured TiNb layer significantly improved the biological activity of PEEK.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Multidisciplinary
Anatolii Makhinia, Pooya Azizian, Valerio Beni, Jasmina Casals-Terre, Joan M. Cabot, Peter Andersson Ersman
Summary: Microfluidic surface chemistry allows for control of capillary-driven flow without bulky external instrumentation. A novel nonhomogeneous coating is used to define regions with different wetting properties on microchannel walls, leading to different capillary pressures and automatic flow control. This method employs inkjet printing to deposit hydrophilic coatings on the surfaces of 3D-printed microfluidic devices, enabling capillary flow control in 3D-printed microfluidics for the first time. The method is further utilized to create stop and delay valves and integrated with organic electrochemical transistors for sensing applications.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Pharmacology & Pharmacy
Ainhoa Gonzalez-Pujana, Teresa Carranza, Edorta Santos-Vizcaino, Manoli Igartua, Pedro Guerrero, Rosa Maria Hernandez, Koro de la Caba
Summary: In this study, dual 3D printed and electrospun polycaprolactone (PCL) scaffolds with multiple mesh layers were successfully prepared. The scaffolds demonstrated enhanced hydrophilicity, cell adhesion and growth. Biological results indicated that the hybrid PCL scaffolds are biocompatible and capable of guiding osteogenic differentiation.
Article
Chemistry, Multidisciplinary
Wei Guo, Yuanlan Liu, Yinghui Sun, Yawen Wang, Wei Qin, Bo Zhao, Zhiqiang Liang, Lin Jiang
Summary: Inspired by natural forest light absorption strategies, researchers have successfully constructed a hierarchical plasmonic superstructure composed of vertical TiO2 pillar arrays, nanorod arrays, and numerous plasmonic Au nanoparticles to achieve higher nitrogen photo-fixation photocatalytic activity. This forest-like plasmonic superstructure effectively absorbs light through surface plasmonic resonance effects of Au nanoparticles and multiple light scattering.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yang Shi, Jue Shi, Yuan Sun, Qiqi Liu, Chun Zhang, Changyu Shao, Kang Yu, Mingjie Ge, Rui Mi, Jingyi Gu, Wenzhi Wu, Weiying Lu, Zhuo Chen, Yong He, Ruikang Tang, Zhijian Xie
Summary: An ideal craniofacial bone repair graft should focus on both repair ability and regeneration of natural architecture with occlusal loads-related function restoration. However, functional bone tissue engineering scaffold with such properties is rarely reported. In this study, a hierarchical 3D graft is proposed for rebuilding craniofacial bone, which includes a cortical layer containing Haversian system and a cancellous layer featured with triply periodic minimum surface macrostructures. The graft exhibits excellent osteogenic and angiogenic potential in vitro, and promotes revascularization and reconstruction of neo-bone with original morphology in vivo.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Manufacturing
Shuai Zhang, Qiang Gao, Yu Zhang, Xianzhe Sheng, Zhenyun Miao, Jianbin Qin, Guangcheng Zhang, Xuetao Shi
Summary: This paper combines 3D printing with supercritical CO2 foaming technology to develop a novel strategy for manufacturing lightweight hierarchical structures. By adjusting the printing parameters, the thickness of the shell layer and the size of the core layer's cells can be changed, thereby improving the mechanical properties and energy absorption efficiency of the printed foam, and it has a broad range of applications.
ADDITIVE MANUFACTURING
(2023)
Review
Materials Science, Multidisciplinary
Wei Ying Lieu, Daliang Fang, Kay Jin Tay, Xue Liang Li, Wei Che Chu, Yee Sin Ang, Dong-Sheng Li, Lay-Kee Ang, Ye Wang, Hui Ying Yang
Summary: This review summarizes the recent progress in the research and applications of 3D-printed metal-organic frameworks (MOFs) and introduces the methods of MOF coating, in situ growth, and using pre-synthesized MOFs to regulate the structure. It also discusses the principles of different 3D printing technologies and the development of various devices manufactured by 3D-printed MOFs.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Engineering, Chemical
Jun Zhang, Josh Tuohey, Negin Amini, David A. Morton, Karen P. Hapgood
Summary: This study used artificial models to represent porous particle beds and found that the porous structure has a more significant effect on liquid capillary rise than material surface wettability. The experimental results also pave the way for a new production method for reproducible models of irregular powder beds.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Bo Zhao, Jiawen Wu, Zhiqiang Liang, Wenkai Liang, He Yang, Dan Li, Wei Qin, Meiwen Peng, Yinghui Sun, Lin Jiang
Summary: This study demonstrates the construction of a bioinspired hierarchical fast transport network in a 3D printed reduced graphene oxide/carbon nanotube electrode, which exhibits superior electrochemical performance. The efficient utilization of surface area and catalysts enables high mass activity and low overpotential, resulting in improved stability and low voltage characteristics.
Article
Chemistry, Multidisciplinary
Yuto Katsuyama, Nagihiro Haba, Hiroaki Kobayashi, Kazuyuki Iwase, Akira Kudo, Itaru Honma, Richard B. Kaner
Summary: A 3D-hierarchical carbon lattice with ordered macropores and uniform nanopores is prepared using a cheap 3D printer and CO2 activation process. It exhibits a high areal capacitance and is further improved by electrochemically depositing manganese oxide. A high-performance asymmetric supercapacitor is then fabricated, achieving one of the highest reported areal energy and power densities.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Alina R. Garcia-Taormina, Chantal M. Kurpiers, Ruth Schwaiger, Andrea M. Hodge
Summary: Magnetron sputtering is a versatile deposition method for generating novel nano- and micro-lattice materials, but achieving uniform coatings on fine-featured structures remains a challenge. Evaluating different sputtering configurations, cathode geometries, and deposition parameters can help in understanding their implications on coating thickness and uniformity.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Michael G. Eberhardt, Andrea M. Hodge, Paulo S. Branicio
Summary: The research found that non-flat areas on copper substrates have lower film coverage, but this can be offset by increasing deposition energy. Higher energy atoms are able to increase adatom mobility to cover line-of-sight regions and reduce surface roughness.
COMPUTATIONAL MATERIALS SCIENCE
(2022)
Article
Materials Science, Ceramics
Xiaoqiang Li, Xi Xie, Jesus Gonzalez-Julian, Rui Yang, Ruth Schwaiger, Juergen Malzbender
Summary: The oxidation behavior of nanostructured Ti2AlC and Ti3AlC2 ceramics shows anisotropy in high-temperature air, with a correlation between oxidation temperature and overall parabolic rate constant. However, in a certain temperature and stress range, the creep behavior of these materials is influenced by grain boundary sliding.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
W. G. Yang, G. Hasemann, M. Yazlak, B. Gorr, R. Schwaiger, M. Krueger
Summary: The solidification behavior near the ternary V-ss-V3Si-V5SiB2 eutectic reaction in the V-Si-B system was experimentally investigated, and the composition of the reaction was determined. A comparison was made with calculated results to reveal the competitive solidification behavior between the two-phase and three-phase eutectic growth.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Juergen Peter Gross, Juergen Malzbender, Ruth Schwaiger
Summary: The fracture strength of thin ceramic materials was studied using various testing methods, and the effective volume approach was found to be the most suitable. Fractographic analysis revealed that pores were the main failure initiating defect.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Energy & Fuels
Matthias Binder, Christian Schuhbauer, Ralf Uhlig, Peter Schwarzbozl, Ruth Schwaiger, Robert Pitz-Paal
Summary: Solar power tower plants have the potential to provide renewable energy, but reducing investment and operating costs is crucial. This study introduces a new approach to compare different safety concepts in terms of permissible strains and stresses, and also suggests using cost-effective stainless steels instead of expensive nickel-based alloys for receiver design optimization.
Article
Materials Science, Ceramics
Xiaoqiang Li, Sylvain Badie, Jesus Gonzalez-Julian, Ruth Schwaiger, Juergen Malzbender
Summary: The abrasive behavior of M2AlX MAX phase materials was found to be related to the brittleness index B, which is determined by the hardness, elastic modulus, and fracture toughness. The findings provide guidance for predicting the abrasive behavior of a wider range of brittle materials.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Wenyu Zhou, Juergen Malzbender, Fanlin Zeng, Wendelin Deibert, Louis Winnubst, Arian Nijmeijer, Olivier Guillon, Ruth Schwaiger, Wilhelm Albert Meulenberg
Summary: The mechanical properties of BCZ20Y15-GDC15 dual-phase material were investigated in this study. The introduction of GDC15 was found to enhance the material's toughness, providing a foundation for designing structurally stable components.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Jin Wang, Likang Luan, Tillmann Volz, Sabine M. Weygand, Ruth Schwaiger
Summary: Wedge indentation experiments on single-crystalline tungsten revealed the depth dependence of geometrically necessary dislocation structures, showing the evolution of dislocation structures at different depths.
JOURNAL OF MATERIALS RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
Christian Brandl, In-Chul Choi, Ruth Schwaiger
Summary: The thermally activated plasticity of body-centered cubic (BCC) metals was investigated through high-temperature nanoindentation, revealing the change in slip plane as a result of dislocation kink pair formation with increasing temperature.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
W. G. Yang, R. S. Touzani, G. Hasemann, M. Yazlak, M. Ziegner, B. Gorr, R. Schwaiger, M. Krueger
Summary: The present study reports the existence of a new ternary phase, V8SiB4, in the V-Si-B system. The phase was discovered through heat treatment at high temperatures and its crystal structure was determined by experimental and theoretical methods. The stability of V8SiB4 was further examined and compared with V5SiB2 (T2).
Article
Materials Science, Multidisciplinary
Juergen Peter Gross, Gerald Dueck, Frank Schaefer, Michael Holzapfel, Martin Finsterbusch, Juergen Malzbender, Ruth Schwaiger
Summary: NASICON-type solid electrolytes hold promise as materials for high energy density solid-state batteries. In this study, Na1+xHf2Si2.3P0.7O10.85+0.5x with varying sodium content and Sc- or Mg-doped and undoped Na1+xZr2P3-xSixO12 were synthesized and their microstructural, mechanical, and conductivity properties were investigated. The results show that the electrochemical and microstructural properties of the materials are strongly influenced by the glassy phase and secondary phase formation, as well as bloating. The mechanical properties depend mainly on the microstructural characteristics. Additionally, inhibiting bloating and secondary phase formation leads to improved mechanical behavior.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Adie Alwen, Andrea M. Hodge
Summary: The effect of target geometry on coating microstructure and morphology is investigated. Changes in deposition conditions, plasma characteristics, and film growth during planar and hollow cathode sputtering are correlated to target geometry. The study shows that varying target geometry significantly affects the deposition rate, temperature, and ion density, leading to changes in film morphology and texture without affecting grain size.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Materials Science, Multidisciplinary
Wenyu Zhou, Fanlin Zeng, Juergen Malzbender, Hartmut Schlenz, Wendelin Deibert, Dmitry Sergeev, Ivan Povstugar, Ruth Schwaiger, Arian Nijmeijer, Michael Mueller, Olivier Guillon, Wilhelm Albert Meulenberg
Summary: In this study, almost fully densified BaCe0.65Zr0.2Y0.15O3-delta material with large grain sizes was successfully fabricated by using NiO as a sintering aid. The mechanism behind the promoted densification and grain growth was elucidated through experimental results and literature review.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Chelsea D. Appleget, Juan Sebastian Riano, Andrea M. Hodge
Summary: This study investigates the microstructural transformations of binary nanometallic multilayers (NMMs) to equiaxed nanostructured materials. The results reveal the key factors and mechanisms that influence grain size growth, as well as the segregation behaviors in different material systems.