Process development for high-resolution 3D-printing of bioresorbable vascular stents

2017 ◽  
Author(s):  
Henry Oliver T. Ware ◽  
Adam C. Farsheed ◽  
Robert van Lith ◽  
Evan Baker ◽  
Guillermo Ameer ◽  
...  
Keyword(s):  
High Resolution ◽  
3D Printing ◽  
Process Development ◽  
Vascular Stents

3D-Printing Strong High-Resolution Antioxidant Bioresorbable Vascular Stents

2016 ◽  
Vol 1 (9) ◽  
pp. 1600138 ◽  
Author(s):  
Robert van Lith ◽  
Evan Baker ◽  
Henry Ware ◽  
Jian Yang ◽  
Adam Cyrus Farsheed ◽  
...  
Keyword(s):  
High Resolution ◽  
3D Printing ◽  
Vascular Stents

High-resolution 3D printing in seconds

Nature ◽  
2020 ◽  
Vol 588 (7839) ◽  
pp. 594-595
Author(s):  
Cameron Darkes-Burkey ◽  
Robert F. Shepherd
Keyword(s):  
High Resolution ◽  
3D Printing

X-Ray Nanotomography (XRMT) Tool for Non-Destructive High-Resolution Imaging of ICs

2001 ◽  
Author(s):  
Wenbing Yun ◽  
Steve Wang ◽  
David Scott ◽  
Kenneth W. Nill ◽  
Waleed S. Haddad
Keyword(s):  
High Resolution ◽  
Process Development ◽  
3D Visualization ◽  
Tomographic Reconstruction ◽  
Reconstruction Algorithms ◽  
X Ray ◽  
Visualization Software ◽  
Volumetric Reconstruction ◽  
Resolution Imaging ◽  
Non Destructive

Abstract A high-resolution table-sized x-ray nanotomography (XRMT) tool has been constructed that shows the promise of nondestructively imaging the internal structure of a full IC stack with a spatial resolution better than 100 nm. Such a tool can be used to detect, localize, and characterize buried defects in the IC. By collecting a set of X-ray projections through the full IC (which may include tens of micrometers of silicon substrate and several layers of Cu interconnects) and applying tomographic reconstruction algorithms to these projections, a 3D volumetric reconstruction can be obtained, and analyzed for defects using 3D visualization software. XRMT is a powerful technique that will find use in failure analysis and IC process development, and may facilitate or supplant investigations using SEM, TEM, and FIB tools, which generally require destructive sample preparation and a vacuum environment.

Understanding and improving FDM 3D printing to fabricate high-resolution and optically transparent microfluidic devices

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Reverson Fernandes Quero ◽  
Gessica Domingos Silveira ◽  
Jose Alberto Fracassi da Silva ◽  
Dosil Pereira de Jesus
Keyword(s):  
High Resolution ◽  
3D Printing ◽  
Fused Deposition Modeling ◽  
Microfluidic Devices ◽  
Fused Deposition ◽  
Optically Transparent ◽  
Deposition Modeling

The fabrication of microfluidic devices through Fused Deposition Modeling (FDM) 3D printing has faced several challenges, mainly regarding obtaining microchannels with suitable transparency and sizes. Thus, the use of this...

Highly stretchable hydrogels for UV curing based high-resolution multimaterial 3D printing

2018 ◽  
Vol 6 (20) ◽  
pp. 3246-3253 ◽  
Author(s):  
Biao Zhang ◽  
Shiya Li ◽  
Hardik Hingorani ◽  
Ahmad Serjouei ◽  
Liraz Larush ◽  
...  
Keyword(s):  
High Resolution ◽  
3D Printing ◽  
Uv Curing ◽  
Digital Light Processing ◽  
Highly Stretchable ◽  
Hydrogel System

We report a highly stretchable hydrogel system that is suitable for digital light processing (DLP) based high-resolution multimaterial 3D printing.

High‐resolution 3D Printing of Mechanically Tough Hydrogels Prepared by Thermo‐Responsive Poloxamer Ink Platform

2021 ◽  
pp. 2100579
Author(s):  
Kusuma Betha Cahaya Imani ◽  
Ara Jo ◽  
Gyeong Min Choi ◽  
Beogyeong Kim ◽  
Jin‐Woong Chung ◽  
...  
Keyword(s):  
High Resolution ◽  
3D Printing

NeuroPort: Retractor tubular personalizado para cirugías mínimamente invasivas fabricado mediante impresión 3D por estereolitografía

2021 ◽  
Author(s):  
◽  
C. J. González Leal
Keyword(s):  
High Resolution ◽  
3D Printing ◽  
Brain Tumors ◽  
Vascular Malformations ◽  
Low Cost ◽  
Lighting System ◽  
Minimal Invasion ◽  
The Brain ◽  
Intended Use ◽  
Printing Method

NeuroPort is a low cost customized biodevice for minimal invasion surgeries designed within Servicio Neurocirugía UANL and Departamento de Ingeniería Biomédica; and manufactured by stereolithography, a high- resolution 3D printing method. This biodevice provides a channel of approach for subcortical and intraventricular cerebral surgical procedures with an intended use in the treatment of diseases such as brain tumors, anomalies or vascular malformations, parenchymal hematomas, among others. It has a design that minimizes tissue damage by displacing the tissues of the brain during the advance toward the desired abnormality; in addition to its integration with neuronavigational equipment and its own lighting system. All these features designed to make the surgical procedure faster and safer for the patient, facilitating the work of the neurosurgeon.

scholarly journals The Electric-Field-Driven Fusion Jetting 3D Printing for Fabricating High Resolution Polylactic Acid/Multi-Walled Carbon Nanotube Composite Micro-Scale Structures

Micromachines ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1132
Author(s):  
Xiaoqiang Li ◽  
Guangming Zhang ◽  
Wenhai Li ◽  
Zun Yu ◽  
Kun Yang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Resolution ◽  
3D Printing ◽  
Electric Field ◽  
Polylactic Acid ◽  
Line Width ◽  
Micro Scale ◽  
Biomimetic Scaffolds ◽  
Multi Walled Carbon Nanotube ◽  
Scale Structures

Existing 3D printing techniques are still facing the challenge of low resolution for fabricating polymer matrix composites, inhibiting the wide engineering applications for the biomedical engineering (biomimetic scaffolds), micro fuel cells, and micro-electronics. In order to achieve high resolution fabrication of polylactic acid (PLA)/multi-walled carbon nanotube (MWCNT) composites, this paper presents an electric-field-driven (EFD) fusion jetting 3D printing method by combining the mixing effect and material feeding of the micro-screw and the necking effect of Taylor cone by the EFD. The effects of main process parameters (the carbon loading, the voltage, the screw speed, and the printing speed) on the line width and the printing quality were studied and optimized. To demonstrate the printing capability of this proposed method, meshes with line width of 30 µm to 100 μm and 1 wt.% to 5 wt.% MWCNT for the application of conductive biomimetic scaffold and the anisotropic flexible meshes were prepared. The electrical properties were investigated to present the frequency dependence of the alternating current conductivity and the dielectric loss (tanδ), and the microstructures of printed structures demonstrated the uniformly dispersed MWCNT in PLA matrix. Therefore, it provides a new solution to fabricate micro-scale structures of composite materials, especially the 3D conductive biomimetic scaffolds.

scholarly journals Rapid and Inexpensive Fabrication of Multi-Depth Microfluidic Device using High-Resolution LCD Stereolithographic 3D Printing

2019 ◽  
Vol 3 (1) ◽  
pp. 26 ◽  
Author(s):  
Mohamed Mohamed ◽  
Hitendra Kumar ◽  
Zongjie Wang ◽  
Nicholas Martin ◽  
Barry Mills ◽  
...  
Keyword(s):  
High Resolution ◽  
3D Printing ◽  
Soft Lithography ◽  
Liquid Crystal Display ◽  
Three Dimensional ◽  
Microfluidic Devices ◽  
Single Step ◽  
Droplet Generator ◽  
Rapid Fabrication ◽  
Printing System

With the dramatic increment of complexity, more microfluidic devices require 3D structures, such as multi-depth and -layer channels. The traditional multi-step photolithography is time-consuming and labor-intensive and also requires precise alignment during the fabrication of microfluidic devices. Here, we present an inexpensive, single-step, and rapid fabrication method for multi-depth microfluidic devices using a high-resolution liquid crystal display (LCD) stereolithographic (SLA) three-dimensional (3D) printing system. With the pixel size down to 47.25 μm, the feature resolutions in the horizontal and vertical directions are 150 μm and 50 μm, respectively. The multi-depth molds were successfully printed at the same time and the multi-depth features were transferred properly to the polydimethylsiloxane (PDMS) having multi-depth channels via soft lithography. A flow-focusing droplet generator with a multi-depth channel was fabricated using the presented 3D printing method. Experimental results show that the multi-depth channel could manipulate the morphology and size of droplets, which is desired for many engineering applications. Taken together, LCD SLA 3D printing is an excellent alternative method to the multi-step photolithography for the fabrication of multi-depth microfluidic devices. Taking the advantages of its controllability, cost-effectiveness, and acceptable resolution, LCD SLA 3D printing can have a great potential to fabricate 3D microfluidic devices.

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