Fabrication of microfluidic chip using foil-assisted CO2 laser ablation for suspended particles separation

2015 ◽  
Author(s):  
H.P. Long ◽  
C. C. Lai ◽  
C.K. Chung
Keyword(s):  
Laser Ablation ◽  
Microfluidic Chip ◽  
Suspended Particles

Studied on the Microfluidic Chip Based on the Kapton by Excimer Laser Ablation

2010 ◽  
Vol 458 ◽  
pp. 81-86 ◽  
Author(s):  
S.J. Sun ◽  
Ji Jun Zhu ◽  
Winco K.C. Yung
Keyword(s):  
Laser Ablation ◽  
Excimer Laser ◽  
Microfluidic Chip ◽  
Surface Characterization ◽  
Polyimide Film ◽  
Excimer Laser Ablation ◽  
Light Interference ◽  
Atomic Force ◽  
White Light Interference

This work has been undertaken to study the microfluidic chip made by the excimer laser ablation. A Kind of Micro electrophoresis chip, Micro polymer chain reaction (PCR) and combined with electrochemical detection and micro blood separator are made using the commercial Polyimide film (Kapton from Dupont). The surface characterization of the excimer-ablated polymide is studied by using the Scanning Electron Microscopy (SEM), Atomic Force Microscope (AFM) and X-ray photoelectronic spectroscopy (XPS). The surface roughness is also measured by white light interference microscope (Wyco NT8000, Vecco. Com, USA). A kind of heat transfer equation is also given in this paper.

PMMA microfluidic chip fabrication using laser ablation and low temperature bonding with OCA film and LOCA

2016 ◽  
Vol 23 (6) ◽  
pp. 1937-1942 ◽  
Author(s):  
Kan Liu ◽  
Jianzhen Xiang ◽  
Zhao Ai ◽  
Shoukun Zhang ◽  
Yi Fang ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Low Temperature ◽  
Microfluidic Chip ◽  
Chip Fabrication ◽  
Low Temperature Bonding

scholarly journals Etching-Assisted Ablation of the UV-Transparent Fluoropolymer CYTOP Using Various Laser Pulse Widths and Subsequent Microfluidic Applications

Micromachines ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 662 ◽  
Author(s):  
Keisuke Nemoto ◽  
Yasutaka Hanada
Keyword(s):  
Laser Ablation ◽  
Microfluidic Chip ◽  
Pulse Width ◽  
Industrial Applications ◽  
Nanosecond Laser ◽  
Mechanism Study ◽  
Laser Ablation Process ◽  
Chip Fabrication ◽  
Fluid Boundary ◽  
Quality Surface

This work demonstrated the surface microfabrication of the UV-transparent fluoropolymer CYTOP (perfluoro 1-butenyl vinyl ether), by etching-assisted ablation using lasers with different pulse widths. In previous studies, we developed a technique for CYTOP microfluidic fabrication using laser ablation followed by etching and annealing. However, this technique was not suitable for some industrial applications due to the requirement for prolonged etching of the irradiated areas. The present work developed a faster etching-assisted ablation method in which the laser ablation of CYTOP took place in fluorinated etching solvent and investigated into the fabrication mechanism of ablated craters obtained from various pulse width lasers. The mechanism study revealed that the efficient CYTOP microfabrication can be achieved with a longer pulse width laser using this technique. Therefore, the rapid, high-quality surface microfabrication of CYTOP was demonstrated using a conventional nanosecond laser. Additionally, Microfluidic systems were produced on a CYTOP substrate via the new etching-assisted laser ablation process followed by annealing within 1 h, which is faster than the prior work of the microfluidic chip fabrication. Subsequently, CYTOP and polydimethylsiloxane substrates were bonded to create a 3D microfluidic chip that allowed for a clear microscopic image of the fluid boundary.

Observations on the growth of YBa2Cu3O7-δ thin films on MgO by pulsed-laser ablation

1991 ◽  
Vol 49 ◽  
pp. 1068-1069
Author(s):  
M. Grant Norton ◽  
C. Barry Carter
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Laser Ablation ◽  
Substrate Surface ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Laser Ablation Process ◽  
Deposition Parameters

Pulsed-laser ablation has been widely used to produce high-quality thin films of YBa2Cu3O7-δ on a range of substrate materials. The nonequilibrium nature of the process allows congruent deposition of oxides with complex stoichiometrics. In the high power density regime produced by the UV excimer lasers the ablated species includes a mixture of neutral atoms, molecules and ions. All these species play an important role in thin-film deposition. However, changes in the deposition parameters have been shown to affect the microstructure of thin YBa2Cu3O7-δ films. The formation of metastable configurations is possible because at the low substrate temperatures used, only shortrange rearrangement on the substrate surface can occur. The parameters associated directly with the laser ablation process, those determining the nature of the process, e g. thermal or nonthermal volatilization, have been classified as ‘primary parameters'. Other parameters may also affect the microstructure of the thin film. In this paper, the effects of these ‘secondary parameters' on the microstructure of YBa2Cu3O7-δ films will be discussed. Examples of 'secondary parameters' include the substrate temperature and the oxygen partial pressure during deposition.

153: Successful Gold Nanoshell Assisted Laser Ablation of Prostate Carcinoma in Vitro

2007 ◽  
Vol 177 (4S) ◽  
pp. 52-52
Author(s):  
Joshua M. Stem ◽  
Jer-Tsang Hsieh ◽  
Sangtae Park ◽  
Yair Lotan ◽  
Jeffrey A. Cadeddu
Keyword(s):  
Laser Ablation ◽  
Prostate Carcinoma ◽  
Gold Nanoshell
Sign in / Sign up

Export Citation Format

Share Document