Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Norland optical adhesive (NOA81) microchannels with adjustable wetting behavior and high chemical resistance against a range of mid-infrared-transparent organic solvents
 
Loading...
Thumbnail Image
research article

Norland optical adhesive (NOA81) microchannels with adjustable wetting behavior and high chemical resistance against a range of mid-infrared-transparent organic solvents

Wägli, Ph.  
•
Homsy, A.  
•
de Rooij, N. F.  
2011
Sensors and Actuators B: Chemical

Different methods to adjust the wetting behavior of surfaces of the UV-curable adhesive NOA81 were investigated and quantitatively characterized by dynamic contact angle measurements with an optical goniometer. A new method to make NOA81 surfaces hydrophobic by mixing an additive in the uncured polymer was presented. The effect was confirmed by surface roughness studies using atomic force microscopy and X-ray photoelectron spectroscopy measurements. The chemical resistance of NOA81 microfluidic channels was evaluated by flowing organic solvents therein. Emphasis was placed on IR-transparent organic solvents. A simple, low-cost method to fabricate chemically resistant, hydrophilic, hydrophobic and hybrid (hydrophilic and hydrophobic), all-polymer microfluidic channels made of NOA81 was reported. Applications like oil-in-water and water-in-oil droplet generation or handling of a multi-phase flow were presented to demonstrate the chemical resistance and the control over the wetting behavior of NOA81 microfluidic chips. (C) 2011 Elsevier B.V. All rights reserved.

  • Details
  • Metrics
Type
research article
DOI
10.1016/j.snb.2011.02.005
Web of Science ID

WOS:000292354600073

Author(s)
Wägli, Ph.  
•
Homsy, A.  
•
de Rooij, N. F.  
Date Issued

2011

Publisher

Elsevier

Published in
Sensors and Actuators B: Chemical
Volume

156

Issue

2

Start page

0994

End page

1001

Subjects

Noa81

•

Rapid prototyping

•

Microfluidics

•

Surface properties

•

Wetting behavior

•

Organic solvents

•

Multi-phase flow

•

Afm

•

Xps

•

Microfluidic Devices

•

Surface Modification

•

Polymer

•

Systems

•

Bulk

•

Flow

Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
SAMLAB  
Available on Infoscience
March 10, 2011
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/65242
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés