3 years ago

Photoresponsive Passive Micromixers Based on Spiropyran Size-Tunable Hydrogels

Photoresponsive Passive Micromixers Based on Spiropyran Size-Tunable Hydrogels
Giuseppe G. Melpignano, Albertus P. H. J. Schenning, Hossein Eslami Amirabadi, Menno H. J. M. Houben, Jeroen ter Schiphorst, Jaap M. J. den Toonder, Sterre Bakker
Microfluidic devices allow the manipulation of fluids down to the micrometer scale and are receiving a lot of attention for applications where low volumes and high throughputs are required. In these micro channels, laminar flow usually dominates, which requires long residence times of the fluids, limiting the flow speed and throughput. Here a switchable passive mixer has been developed to control mixing and to easily clean microchannels. The mixer is based on a photoresponsive spiropyran based hydrogel of which the dimensions can be tuned by changing the intensity of the light. The size-tunable gels have been used to fabricate a passive slanted groove mixer that can be switched off by light allowing to change mixing of microfluidics to non-mixed flows. These findings open new possibilities for multi-purpose microfluidic devices where mixers and valves can be tuned by light. Passive micromixers have proven their use in microfluidic systems, improving the mixing efficiency and allowing higher throughput. In this work a spiropyran containing photoresponsive size-tunable hydrogel based passive micromixer is fabricated, which is used as a passive micromixer allowing to switch from a mixed to a nonmixed fluid flow in a microchannel by light.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/marc.201700086

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.