Results 81 to 90 of about 38,500 (312)

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

3D printing by stereolithography using thermal initiators

Nature Communications
Additive manufacturing technologies based on stereolithography rely on initiating spatial photopolymerization by using photoinitiators activated by UV-visible light.
Doron Kam, Omri Rulf, Amir Reisinger, Rama Lieberman, Shlomo Magdassi   +4 more
doaj   +1 more source

Optimising continuous microstructures: a comparison of gradient-based and stochastic methods [PDF]

, 2004
This work compares the use of a deterministic gradient based search with a stochastic genetic algorithm to optimise the geometry of a space frame structure.
Hanna, S., Haroun Mahdavi, S.
core  

Triply‐Twinned Metamaterials: Unraveling the Mechanics and Failure Pathways Through High‐Resolution XCT

Advanced Materials, EarlyView.
Triply‐twinned architected lattices transform deformation from bending to stretching of struts, delivering up to threefold increases in stiffness and strength across polymeric and metallic systems. High‐resolution synchrotron XCT and image‐based simulations reveal how meta‐grain architecture, defects, and AM build orientation govern failure pathways ...
David McArthur, George Maddison, Jaianth Vijayakumar, Paul Tafforeau, Kathy Christofidou, Peter David Lee, PJ Tan, Chu Lun Alex Leung   +7 more
wiley   +1 more source

The Impact of Thermocycling on the Physico-mechanical Properties of SLA and DLP 3D-Printed Dental Ceramics: A Comparative Study

Dentistry 3000
Objective: Three-dimensional (3D) printing technology is highly promising for producing nanoceramic resin dental restorations. However, the effects of environmental stressors on the structural integrity and clinical performance of these restorations ...
Nadia H Hasan
doaj   +1 more source

Hybrid Two-Scale Fabrication of Sub-Millimetric Capillary Grippers

Micromachines, 2019
Capillary gripping is a pick-and-place technique that is particularly well-suited for handling sub-millimetric components. Nevertheless, integrating a fluid supply and release mechanism becomes increasingly difficult to manufacture for these scales.
Sam Dehaeck, Marco Cavaiani, Adam Chafai, Youness Tourtit, Youen Vitry, Pierre Lambert   +5 more
doaj   +1 more source

3D printing of optical materials: an investigation of the microscopic properties [PDF]

, 2018
3D printing technologies are currently enabling the fabrication of objects with complex architectures and tailored properties. In such framework, the production of 3D optical structures, which are typically based on optical transparent matrices ...
Arinstein, A., Camposeo, A., Cardarelli, F., Persano, L., Pisignano, D., Uttiya, S., Zussman, E.   +6 more
core   +2 more sources

4D‐Printed Spin Crossover Metamaterials with Giant Programmable Positive or Negative Thermal Expansion

Advanced Materials, EarlyView.
Spin crossover composite filaments are implemented for the rational design of 4D‐printed mechanical metamaterials. The obtained bi‐material structures guided by a theoretical analysis based on analytical calculations and Finite Element Analysis simulations exhibit giant programmable positive or negative deformation with coefficients of thermal ...
Adelais Trapali, Yuteng Zhang, Seyed Ehsan Alavi, Nagham Mawassy, Raja Zulkarnain, Gábor Molnár, Lionel Salmon, Azzedine Bousseksou   +7 more
wiley   +1 more source

3D Printing of a Multi-Layered Polypill Containing Six Drugs Using a Novel Stereolithographic Method

Pharmaceutics, 2019
Three-dimensional printing (3DP) has demonstrated great potential for multi-material fabrication because of its capability for printing bespoke and spatially separated material conformations. Such a concept could revolutionise the pharmaceutical industry,
Pamela Robles-Martinez, Xiaoyan Xu, Sarah J. Trenfield, Atheer Awad, Alvaro Goyanes, Richard Telford, Abdul W. Basit, Simon Gaisford   +7 more
doaj   +1 more source

3D printing of gas jet nozzles for laser-plasma accelerators [PDF]

, 2016
Recent results on laser wakefield acceleration in tailored plasma channels have underlined the importance of controlling the density profile of the gas target.
Döpp, A., Gautier, J., Guillaume, E., Malka, V., Phuoc, K. Ta, Thaury, C.   +5 more
core   +3 more sources