Electrokinetic transport of molecules through nanochanneled membranes

Alessandro Grattoni, Xuewu Liu, Zongxing Wang, Jaskaran Gill, Arturas Ziemys, Mauro Ferrari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Our research group was the first one to microfabricate and demonstrate nano-channels in silicon membranes (1, 2). We employed nano-channeled chips to provide immuno-isolation for cell transplantation towards the treatment of diabetes (3), for biomolecular separation (4), and for the controlled passive and active release of drug molecules from implanted capsules (5). We showed that the constraints placed upon molecular agitation in nano-channels affected their concentration-driven transport kinetics (6, 7). A zero-order passive release of biological molecules was achieved, by the rational tailoring of nano-channels dimensions. This achievement allowed releasing of a constant amount of drugs over a long period of time. However, the development and optimization of many drug therapies require long-term drug delivery with controlled but variable dosage using miniaturized systems (8). Moreover, application such as drug release from implanted devices requires tight operational control, of regulatory agency caliber. We have engaged in the development and characterization of elecroosmotic nano-channels membranes, and present our results in this communication. These include the influence of the drug release rate on nanochannel size, membrane configuration, and applied voltage.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME 1st Global Congress on NanoEngineering for Medicine and Biology 2010, NEMB2010
PublisherASME
Pages131-134
Number of pages4
ISBN (Print)9780791843925
DOIs
StatePublished - 2010
Event1st Global Congress on NanoEngineering for Medicine and Biology: Advancing Health Care through NanoEngineering and Computing, NEMB 2010 - Houston, TX, United States
Duration: Feb 7 2010Feb 10 2010

Publication series

NameProceedings of the ASME 1st Global Congress on NanoEngineering for Medicine and Biology 2010, NEMB2010

Other

Other1st Global Congress on NanoEngineering for Medicine and Biology: Advancing Health Care through NanoEngineering and Computing, NEMB 2010
CountryUnited States
CityHouston, TX
Period2/7/102/10/10

Keywords

  • Drug release
  • Electroosmosis
  • Silicon nanochannel

ASJC Scopus subject areas

  • Biomedical Engineering
  • Medicine(all)

Fingerprint Dive into the research topics of 'Electrokinetic transport of molecules through nanochanneled membranes'. Together they form a unique fingerprint.

Cite this