Glucose Monitoring: Something to Cry About

  • Author: David Bradley
  • Published: 24 June 2013
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
  • Source / Publisher: Analytical Chemistry/ACS Publications
thumbnail image: Glucose Monitoring: Something to Cry About

It almost sounds like science fiction, but Sergey Shleev of Malmö University in Sweden and colleagues are developing a miniature bio-based fuel cell that can power a glucose sensor embedded into a contact lens. The biodevice with its three-dimensional nanostructured gold electrodes contains an organic complex (tetrathiafulvalene-tetracyanoquinodimethane conducting complex) and a redox enzyme (Myrothecium verrucaria bilirubin oxidase). Ascorbate and oxygen naturally present in tears act as fuel and oxidant for the device, which then drives a glucose sensor that keeps an eye on the patient's health.

The tiny size of the electronics means the user's vision is not impaired and presumably even patients with 20:20 vision could wear one optically "inactive" lens to monitor their blood glucose during the day. The system would preclude the need for regular pin-prick blood tests, which people with diabetes must carry out regularly to ensure they take insulin when their body needs it.

Article Views: 2923

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission. more

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH