Melting Fibres To Make Nanochannels - New Technology

Cornell University researchers have found a way to construct fluidic channels that permits fluid to flow more freely. The simple and inexpensive method results in tiny channels with corners that are elliptical rather than sharp. These channels can be used to control the flow of minuscule amounts of fluid through “labs-on-a-chip” and inexpensive, hand-held chemical and biological testing devices.

The channels are made using a spinning technique to deposit parallel, evenly-spaced polymer fibres onto silicon, silicon dioxide or glass chips. That is covered with a layer of liquid glass. Photolithography is then used to add reservoirs to the chip and a hot plasma beam etches holes at each end. Then by heating the materials 350 degrees Celsius decomposes the fibres, leaving elliptical channels.

These channels could be used to separate, count and analyze biological molecules.

Posted 8th December 2003

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Your comment type

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.