Functional polypyrrole coatings for wirelessly controlled magnetic microrobots

Sivaraman, Kartik M.; Chatzipirpiridis, George; Becsek, Barna; Luhmann, Tessa; Ergeneman, Olgac; Nelson, Bradley J.; Pane, Salvador (2013). Functional polypyrrole coatings for wirelessly controlled magnetic microrobots. In: 1st IEEE-EMBS Special Topic Conference on Point-of-Care (POCT) Healthcare Technologies (PHT) (pp. 22-25). IEEE 10.1109/PHT.2013.6461275

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A wirelessly controlled magnetic microrobot has been proposed to diagnose and treat pathologies in the posterior segment of the human eye. The robot consists of a magnetic CoNi platform with a conformal coating of functional polymers. Electrodeposition has been the preferred method to fabricate and to functionalize the microrobot. Poly(pyrrole), a widely studied intrinsically conductive polymer has been investigated as a biocompatible coating to reduce biofouling, and as a coating that can release incorporated drugs on demand. The mechanism of redox cycling has been investigated to reduce the stiction of NIH 3T3 fibroblasts onto poly(pyrrole) surfaces. To demonstrate triggered drug release, Rhodamine B has been incorporated into the Ppy matrix as a model drug. Rapid Rhodamine B release is obtained when eddy current losses are induced by alternating magnetic fields on the CoNi substrates underneath these films.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Cardiovascular Engineering (CVE)

UniBE Contributor:

Becsek, Barna Errol Mario

ISBN:

978-1-4673-2765-7

Publisher:

IEEE

Language:

English

Submitter:

Barna Errol Mario Becsek

Date Deposited:

21 Oct 2014 14:52

Last Modified:

28 Dec 2014 03:29

Publisher DOI:

10.1109/PHT.2013.6461275

BORIS DOI:

10.7892/boris.59410

URI:

https://boris.unibe.ch/id/eprint/59410

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