Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2004-11-19
pubmed:abstractText
The conducting polymer polypyrrole (PPy) was electrochemically grown on hydrogel scaffolds deposited on the surface of microfabricated neural prosthetic devices. It is shown that the pyrrole monomer can be grown vertically through the hydrogel layer up to the surface without affecting the adjacent sites on the probes. The electrochemical properties of the conducting polymer-modified hydrogels were studied by impedance spectroscopy and cyclic voltammetry. It is also found that the conducting polymers could still be readily grown through the hydrogel after the microstructure is disrupted by freeze drying. Impedance measurements at the biologically important frequency of 1 kHz showed that the minimum impedance of this polymer-modified hydrogel was 7 kOmega. This is much lower than the minimum impedance of polypyrrole film ( approximately 100 kOmega).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1549-3296
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
71
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
577-85
pubmed:dateRevised
2005-5-10
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Conducting polymers grown in hydrogel scaffolds coated on neural prosthetic devices.
pubmed:affiliation
Biomedical Engineering, The University of Michigan, Ann Arbor, Michigan 48109, USA.
pubmed:publicationType
Journal Article