Results 181 to 190 of about 211,113 (260)

Step‐Ladder Bioprinting to Align Collagen Fibers for Anisotropic Tissue Fabrication

open access: yesSmall, EarlyView.
The step‐ladder printing platform includes successive segments of channels with varying widths in a custom barrel design. This design allows for improved anisotropy of collagen fibers during extrusion. To demonstrate its effectiveness, corneal constructs with high transparency and shape fidelity, as well as articular cartilage constructs, displaying ...
Ilayda Namli   +8 more
wiley   +1 more source

The Effect of Mechanical Loading on Sprouting Angiogenesis from Engineered Macro‐vessel Model

open access: yesSmall Methods, EarlyView.
A stretchable macro‐vessel model embedded in collagen is subjected to distinct mechanical loading profiles to study sprouting angiogenesis. Finite element analysis maps strain distributions, revealing that lateral stretch enhances sprouting and alignment, while longitudinal stretch inhibits it.
Lior Debbi   +5 more
wiley   +1 more source

Engineering Biomimetic Nanoparticle Performance Through Fabrication Method Selection: Turbulent Jet Mixing, Microfluidics, and Extrusion

open access: yesSmall Methods, EarlyView.
Biomimetic nanoparticles (BNPs) combine liposomal biocompatibility with cell‐mimicking functions for targeted delivery. This study compares turbulent jet mixing, microfluidic mixing, and extrusion for BNP fabrication. Characterization, proteomics, and in vitro assays show that turbulent jet and microfluidic mixing produce stable, protein‐enriched ...
Ilana Elizarov   +3 more
wiley   +1 more source

Phase Hologram by Acoustic Metasurfaces

open access: yesSmall Structures, EarlyView.
This work has achieved a breakthrough in holographic communication, realizing phase holographic imaging. The proposed phase holographic concept overcomes the limitations of traditional amplitude holographic energy attenuation. The design of its amplitude compensation method further addresses the key challenge of phase holographic imaging clarity ...
Xiao Guo   +11 more
wiley   +1 more source

Impact of half‐joint failures on RC girder bridges: A robustness quantification study

open access: yesStructural Concrete, EarlyView.
Abstract The robustness of bridge structures is critical to ensuring safety and service continuity, particularly in aging infrastructure exposed to degradation and unexpected loads. Reinforced concrete (RC) half‐joint bridges—widely built in Italy between the 1950s and 1970s—exhibit specific vulnerabilities due to inspection challenges, durability ...
Paolo Martinelli, Matteo Colombo
wiley   +1 more source

Motion study on upright patient positioning in walk-through PET: evaluation in a clinical setting. [PDF]

open access: yesEJNMMI Phys
Aziz R   +8 more
europepmc   +1 more source

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