Rapid fabrication of microfluidic chip with three-dimensional structures using natural lotus leaf template

2010 ◽  
Vol 9 (4-5) ◽  
pp. 923-931 ◽  
Author(s):  
Changchun Liu
Keyword(s):  
Microfluidic Chip ◽  
Three Dimensional ◽  
Lotus Leaf ◽  
Rapid Fabrication

Rapid fabrication system for three-dimensional tissues using cell sheet engineering and centrifugation

2015 ◽  
Vol 103 (12) ◽  
pp. 3825-3833 ◽  
Author(s):  
Akiyuki Hasegawa ◽  
Yuji Haraguchi ◽  
Tatsuya Shimizu ◽  
Teruo Okano
Keyword(s):  
Cell Sheet ◽  
Three Dimensional ◽  
Cell Sheet Engineering ◽  
Rapid Fabrication

scholarly journals Rapid Fabrication of Continuous Surface Fresnel Microlens Array by Femtosecond Laser Focal Field Engineering

Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 112 ◽  
Author(s):  
Linyu Yan ◽  
Dong Yang ◽  
Qihuang Gong ◽  
Yan Li
Keyword(s):  
Femtosecond Laser ◽  
Three Dimensional ◽  
Fresnel Lens ◽  
Two Dimensional ◽  
Direct Writing ◽  
Lens Array ◽  
Two Photon ◽  
Rapid Fabrication ◽  
Continuous Surface ◽  
Two Photon Polymerization

Femtosecond laser direct writing through two-photon polymerization has been widely used in precision fabrication of three-dimensional microstructures but is usually time consuming. In this article, we report the rapid fabrication of continuous surface Fresnel lens array through femtosecond laser three-dimensional focal field engineering. Each Fresnel lens is formed by continuous two-photon polymerization of the two-dimensional slices of the whole structure with one-dimensional scan of the corresponding two-dimensional engineered intensity distribution. Moreover, we anneal the lens array to improve its focusing and imaging performance.

Rapid fabrication of versatile omni-directional and long-distance three-dimensional flow paper-fluidic analytical devices using a cut-and-insert method for biomedical applications

2018 ◽  
Vol 10 (38) ◽  
pp. 4648-4654 ◽  
Author(s):  
Tae Joon Kwak ◽  
Wookkun Kwon ◽  
Jiang Yang ◽  
Sang Woo Lee ◽  
Woo-Jin Chang
Keyword(s):  
Liquid Flow ◽  
Biomedical Applications ◽  
Low Cost ◽  
Three Dimensional ◽  
Long Distance ◽  
Three Dimensional Flow ◽  
Dimensional Flow ◽  
Rapid Fabrication ◽  
Paper Fluidics ◽  
Cost Regime

Paper fluidics has recently offered an approach to precisely guide liquid flow in analytical devices with a low-cost regime.

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.

scholarly journals Fabrication of radially aligned electrospun nanofibers in a three-dimensional conical shape

2018 ◽  
Vol 2 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Michel Vong ◽  
Norbert Radacsi
Keyword(s):  
Electric Field ◽  
Three Dimensional ◽  
Electrospun Nanofibers ◽  
Fiber Alignment ◽  
Cone Structure ◽  
Rapid Fabrication ◽  
Field Lines ◽  
Working Distance ◽  
Specific Part ◽  
Shape And Size

Abstract This paper reports on the rapid fabrication of radially-aligned, three-dimensional conical structures by electrospinning. Three different polymers, Polyvinylpyrrolidone, Polystyrene and Polyacrylonitrile were used to electrospin the cones. These cone structures are spreading out from a vertical conductive pillar, which can be arbitrarily placed on specific part of the collector. The lower part of the cone is clearly defined on the collector, and the cone has a relatively uniform radius around the pillar. The cones are constituted of fibers that are radially aligned towards the top of the pillar, but there is no apex and the fibers fall flat on the top of the pillar surface. A parametric study has been performed to investigate the effects of the pillar morphology (height and thickness) and the electrospinning parameters (applied voltage and working distance) on the overall shape and size of the cone structure, as well as the fiber alignment. The pillar morphology influences directly the cone diameter and height. The electrospinning parameters have little effect on the cone structure. The formation mechanism has been identified to be related to the shape of the electric field, which has been systematically simulated to understand the effect of the electric field lines on the final dimensions of the cone structure.

scholarly journals Mapping three-dimensional temperature in microfluidic chip

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Jinbo Wu ◽  
Tsz Yan Kwok ◽  
Xiaolin Li ◽  
Wenbin Cao ◽  
Yu Wang ◽  
...  
Keyword(s):  
Microfluidic Chip ◽  
Three Dimensional

scholarly journals Adsorption and isolation of nucleic acids on cellulose magnetic beads using a three-dimensional printed microfluidic chip

2015 ◽  
Vol 9 (6) ◽  
pp. 064118 ◽  
Author(s):  
Lei Zhang ◽  
Rachel N. Deraney ◽  
Anubhav Tripathi
Keyword(s):  
Nucleic Acids ◽  
Microfluidic Chip ◽  
Magnetic Beads ◽  
Three Dimensional

scholarly journals Direct Materials Deposition: Designed Macro and Microstructure

1998 ◽  
Vol 542 ◽  
Author(s):  
J. Mazumder ◽  
A. Schifferer ◽  
J. Choi
Keyword(s):  
Tool Steel ◽  
State Of The Art ◽  
Three Dimensional ◽  
Water Cooling ◽  
Paper Briefly ◽  
Cooling Channels ◽  
Rapid Fabrication ◽  
Copper Chill ◽  
Direct Materials ◽  
Stress Accumulation

AbstractRapid Fabrication of three-dimensional shapes of engineering materials such as H 13 tool steel and Nickel super alloys are now possible using Direct Materials Deposition (DMD) technique. H 13 tool steel is one of the difficult alloys for deposition due to residual stress accumulation from martensitic transformation. However, it is the material of choice for the die and tool industry. DMD offers Copper chill blocks and water cooling channels as the integral part of the tool. On the other hand ZrO2 was co-deposited with nickel superalloys using DMD. This process thus is amenable to produce both macro and microstructure to a designed specification. This paper briefly reviews the state of the art of DMD and describes the microstructure and mechanical properties of selected engineering alloy systems deposited by DMD.

Sign in / Sign up

Export Citation Format

Share Document