Laminated cubic biodegradable polymer structures for bacteria-based, robotic drug delivery

Hyung Jung Yoo, Sangmin Lee, Jae Hyun Ahn, Seok Jun Hong, Minjae Lee, Jong Mo Seo, Tae You Kim, Sung Jae Kim, Dong Il Dan Cho

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Recently, a bacteria-based drug delivery system has been proposed to achieve effective and localized drug delivery. Researchers have shown that flagellated bacteria have a chemotactic property to tumor cells, and they can be used as an energy source for active drug delivery. Our previous results have reported that a circular droplet made by a biodegradable polymer can be used in this bacteria-based, robotic drug delivery. In this paper, using laminated cubic structures made of several layers of biodegradable polymers for bacteria-based microrobot is proposed. The structures are made by laminating polymer layers and then, micromachining them using a deep X-ray synchrotron radiation into 40 μm x 40 μm x 40 μm cubes. The cubic structure is more beneficial in attaching bacteria in only selective surface directions than a circular structure, and in controlling the volume of drugs to be encapsulated with the outer polymer layer.

Original languageEnglish
Title of host publicationNanosystems in Engineering and Medicine
DOIs
StatePublished - 2012
EventNanosystems in Engineering and Medicine - Incheon, Korea, Republic of
Duration: 10 Sep 201212 Sep 2012

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8548
ISSN (Print)1605-7422

Other

OtherNanosystems in Engineering and Medicine
Country/TerritoryKorea, Republic of
CityIncheon
Period10/09/1212/09/12

Keywords

  • Bacteria
  • Biodegradable polymer
  • Drug delivery system
  • Lamination
  • Microfabrication
  • X-ray synchrotron radiation

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