Fabrication of Functional Plastic Parts Using Nanostructured Steel Mold Inserts

We report on the fabrication of sub-micro and nanostructured steel mold inserts for the replication of nanostructured immunoassay biochips. Planar and microstructured stainless steel inserts were textured at the sub-micron and nanoscale by combining nanosphere lithography and electrochemical etching...

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Bibliographic Details
Published in:Micromachines (Basel) 2017-06, Vol.8 (6), p.179
Main Authors: Blondiaux, Nicolas, Pugin, Raphaël, Andreatta, Gaëlle, Tenchine, Lionel, Dessors, Stéphane, Chauvy, Pierre-François, Diserens, Matthieu, Vuillermoz, Philippe
Format: Article
Language:English
Subjects:
hot embossing
immunoassay
injection molding
mold
nanostructures
polymer
steel
wettability
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Summary:We report on the fabrication of sub-micro and nanostructured steel mold inserts for the replication of nanostructured immunoassay biochips. Planar and microstructured stainless steel inserts were textured at the sub-micron and nanoscale by combining nanosphere lithography and electrochemical etching. This allowed the fabrication of structures with lateral dimensions of hundreds of nanometers and aspect ratios of up to 1:2. Nanostructured plastic parts were produced by means of hot embossing and injection molding. Surface nanostructuring was used to control wettability and increase the sensitivity of an immunoassay.
ISSN:2072-666X
2072-666X
DOI:10.3390/mi8060179