Development of a Plasma Process for Microfluidic Devices in the Prospect of Cell Attachment

2010 ◽  
Vol 89-91 ◽  
pp. 598-603
Author(s):  
Nathalie Vo Tan Tho ◽  
Hervé Willaime ◽  
Patrick Tabeling ◽  
Farzaneh Arefi-Khonsari ◽  
D. Mantovani ◽  
...  

Plasma processing has been developed to produce selective chemistry in the inner surface of a microfluidic system. This dry process is an alternative solution to the Chemical Vapor Deposition (CVD) process that allows us to work at low temperatures thus avoiding the degradation of the substrate by heat. The present study focused on the surface modification of PDMS in order to make them more hydrophilic and capable to exhibit a high percentage of COOH functions which will provide a good asset for future cell attachment.

2015 ◽  
pp. 551-577

This chapter describes surface modification processes that go beyond conventional heat treatments, including plasma nitriding, plasma carburizing, low-pressure carburizing, ion implantation, physical and chemical vapor deposition, salt bath coating, and transformation hardening via high-energy laser and electron beams. The chapter compares methods and includes several example applications.


2007 ◽  
Vol 51 (5) ◽  
pp. 1743-1747 ◽  
Author(s):  
J. Y. Huh ◽  
W. K. Seong ◽  
T. G. Lee ◽  
W. N. Kang ◽  
N. K. Yang ◽  
...  

2019 ◽  
Vol 74 (3) ◽  
pp. 767-778 ◽  
Author(s):  
Xinhe Zhao ◽  
Chao Wei ◽  
Zuoqi Gai ◽  
Shaoxuan Yu ◽  
Xiaojie Ren

Polymers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1490 ◽  
Author(s):  
Sanghyun Roh ◽  
Sungmin Kim ◽  
Jooyoun Kim

With the growing concern about the health impacts associated with airborne particles, there is a pressing need to design an effective filter device. The objective of this study is to investigate the effect of plasma-based surface modifications on static charges of electrospun filter media and their resulting filtration performance. Polystyrene (PS) electrospun web (ES) had inherent static charges of ~3.7 kV due to its electric field-driven process, displaying effective filtration performance. When oxygen species were created on the surface by the oxygen plasma process, static charges of electret media decreased, deteriorating the filter performance. When the web surface was fluorinated by the plasma-enhanced chemical vapor deposition (PECVD), the filtration efficiency against oily aerosol significantly increased due to the combined effect of decreased wettability and strong static charges (~−3.9 kV). Solid particles on the charged media formed dendrites as particles were attracted to other layers of particles, building up a pressure drop. The PECVD process is suggested as a facile functionalization method for effective filter design, particularly for capturing oily aerosol.


Sign in / Sign up

Export Citation Format

Share Document