Type

Conference Proceedings

Authors

Dermot Brabazon
Vázquez Mercedes
Apryll Stalcup
Komal Bagga
Ronan McCann

Subjects

Physics

Topics
nanotechnology materials thin films microfluidic devices raman spectroscopy micro engineering laser applications lasers

Laser micro-engineering of functionalised cyclic olefin polymers for microfluidic applications (2015)

Abstract Direct-write laser processing has been demonstrated to be capable of both surface patterning of micro- and nanoscale structures on polymer surfaces without significant modification of the surface chemistry or optical transmission of the laser processed area. In this work, the creation of microchannels via direct-write laser processing of 188 μm thickness cyclic olefin polymers is demonstrated, along with a route towards channel functionalization. Cyclic olefin polymers (COP) are an emerging class of polymers noted for their high chemical resistance, biocompatibility and higher optical transparency when compared to other common polymers. These properties make them excellent substrates for the fabrication of microfluidic devices. This paper presents the first investigation into infrared laser processing of COP using a 1064 nm Nd:YAG laser. Scanning electron microscopy and Raman spectroscopy were utilized to investigate the morphology and composition of these laser textured surfaces. A route for functionalization of these substrates for chemical and biological speciation and separation was examined using carbon nanoparticles. The nanoparticles were produced using pulsed laser ablation in liquid (PLAL) which has been reported as a fast and adaptable method for nanoparticle production. The nanoparticles produced were using transmission electron microscopy while the coating of substrates with these CNPs was examined using SEM. These results are discussed in the context of development of a new route for achieving surfaces optimized for microfluidicbased separations and speciation.
Collections Ireland -> Dublin City University -> Subject = Physical Sciences: Lasers
Ireland -> Dublin City University -> Publication Type = Conference or Workshop Item
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Science and Health: School of Chemical Sciences
Ireland -> Dublin City University -> Subject = Physical Sciences: Nanotechnology
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: Advanced Processing Technology Research Centre (APTRC)
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: National Centre for Plasma Science and Technology (NCPST)
Ireland -> Dublin City University -> Subject = Engineering: Materials
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: Irish Separation Science Cluster (ISSC)
Ireland -> Dublin City University -> Subject = Physical Sciences: Thin films

Full list of authors on original publication

Dermot Brabazon, Vázquez Mercedes, Apryll Stalcup, Komal Bagga, Ronan McCann

Experts in our system

1
Dermot Brabazon
Dublin City University
Total Publications: 162
 
2
Apryll Stalcup
Dublin City University
Total Publications: 7
 
3
Komal Bagga
Dublin City University
Total Publications: 9
 
4
Ronan McCann
Dublin City University
Total Publications: 10