Results 71 to 80 of about 19,580 (279)

Nanoindentation and tribology of a (Hf-Ta-Zr-Nb-Ti)C high-entropy carbide

, 2021
Ján Dusza, Tamás Csanádi, Dávid Medveď, Richard Sedlák, Marek Vojtko, Michal Ivor, Hakan Ünsal, Peter Tatarko, Monika Tatarková, Pavol Šajgalı́k   +9 more
openalex   +1 more source

Hydrogel‐Based Vat Photopolymerization of Ceramics and Metals with Low Shrinkages via Repeated Infusion Precipitation

Advanced Materials, EarlyView.
This work introduces an in situ precipitation strategy for the hydrogel‐based vat photopolymerization of architected ceramics and metals with reduced shrinkages and improved densities. Repeated infusion‐precipitation significantly increases metal loading within the hydrogels, which improves part quality after thermal conversion.
Yiming Ji, Ying Hong, Dhruv R. Bhandari, Daryl W. Yee   +3 more
wiley   +1 more source

Tunable Enhancement of T Cell Expansion Through Modulation of Stiffness and Adhesion Receptor Engagement in an Engineered Hydrogel Platform

Advanced Materials, EarlyView.
We develop a hydrogel scaffold with controlled substrate stiffness and ligand functionalization for cell culture. Stiff substrates presenting CD3/CD28/CD2 ligands induce 2000‐fold expansion of T cells; this is 68% greater than the clinical standard (Dynabeads) and the first hydrogel capable of large‐scale expansion. Although expanding at a lower yield,
Niroshan Anandasivam, Rabia Ali, Lordean Gustinvil, Matthew J. Rosenwasser, Iain E. Dunlop, Derfogail Delcassian   +5 more
wiley   +1 more source

Substrate effect in the evaluation of elastic modulus of thin PVD coatings from nanoindentation

Acta Polytechnica CTU Proceedings
The comparison of nanoindentation results on reactive HiTUS TiZrHf+ME-Ny (ME = Nb, V, Ta and VNbTa) and reactive DCMS NbMoTaW coatings showed that the influence of substrate stiffness is still not fully eliminated in the evaluation of indentation ...
František Lofaj
doaj   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

Advanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi, Mario Palacios‐Corella, Arjan Mol, Salvador Pané, Josep Puigmartí‐Luis   +4 more
wiley   +1 more source

A Water‐Soluble PVA Macrothiol Enables Two‐Photon Microfabrication of Cell‐Interactive Hydrogel Structures at 400 mm s−1

Advanced Materials, EarlyView.
A PVA‐based macromolecular thiol‐ene formulation enables efficient two‐photon polymerization at extremely low polymer concentrations and high writing speeds of 400 mm s−1 (20×), allowing high‐fidelity laser writing of cell‐interactive hydrogel structures on demand.
Wanwan Qiu, Margherita Bernero, Muja Emilie Ye, Xianjun Yang, Philipp Fisch, Ralph Müller, Xiao‐Hua Qin   +6 more
wiley   +1 more source

The Macroscopic Stress–Macroscopic Strain Relationship of the Hierarchical Honeycomb Nanoporous Materials by the Spherical Nanoindentation Simulation

Nanomaterials
The spherical nanoindentation macroscopic stress–macroscopic strain relationship of hierarchical honeycomb nanoporous material is defined by combining the spherical nanoindentation simulation and the uniaxial compression simulation. At the same time, the
Fue Han, Hongwei Zhang, Jingnan Zhang
doaj   +1 more source

Nanoindentation creep behavior of human enamel [PDF]

, 2008
Lihong He, Michael V. Swain
openalex   +1 more source

Sculpting the Future of Bone: The Evolution of Absorbable Materials in Orthopedics

Advanced Materials, EarlyView.
This review summarizes the current status of polymeric, ceramic, and metallic absorbable materials in orthopedic applications, and highlights several innovative strategies designed to enhance mechanical performance, control degradation, and promote bioactivity. We also discuss the progress and translational potential of absorbable materials in treating
Zhao Wang, Zehui Lv, Xuejie Cai, Yingjie Wang, Bo Peng, Haojing Xu, Hualuo Pang, Xingdong Yang, Jiawei Xu, Yixin Bian, Bin Feng, Peng Wen, Yufeng Zheng, Xisheng Weng   +13 more
wiley   +1 more source

Nanoindentation induced anisotropy of deformation and damage behaviors of MgF2 crystals

Journal of Materials Research and Technology
The competition mechanism between the slip motions and cleavage fractures is related to the anisotropy of deformation behaviors, which is essential to manufacture complex optical components.
Yinchuan Piao, Chen Li, Yuxiu Hu, Hailong Cui, Xichun Luo, Yanquan Geng, Feihu Zhang   +6 more
doaj   +1 more source