Self-Propelled Capsules for Cleaning Oil Spills

  • Author: ChemPlusChem
  • Published Date: 11 April 2013
  • Source / Publisher: ChemPlusChem/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: Self-Propelled Capsules for Cleaning Oil Spills

Related Societies

Environmental remediation has always been a pressing issue because of the multiple instances of devastating oil spills such as the major spill over the gulf coast.

Martin Pumera and co-workers, Nanyang Technological University, Singapore, use self-propelled biocompatible capsules of millimetre dimensions loaded with various surfactants containing negative, positive and neutral charge (sodiaum dodecyl sulphate (SDS), cetyl trimethylammonium bromide, and Tween 20) and compared their influence upon movement of oil droplets (see figure for mechanism of motion of the oil droplet where γ is surface tension and F is pulling force). With increasing concentration of surfactants the velocity of the repulsed oil droplet increases monotonically.

The increase is most dramatic for SDS. Their findings will have profound impact on the potential applications of such millimetre capsules for environmental clean-up applications.

Article Views: 3169

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 and consult our permission guidance prior to making your request

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