Epoxy-silane linking of biomolecules is simple and effective for patterning neuronal cultures.

Epoxy-silane linking of biomolecules is simple and effective for patterning neuronal cultures. Research Abstract Details 

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Epoxy-silane linking of biomolecules is simple and effective for patterning neuronal cultures. Abstract Text:

Yoonkey Nam,Darren W Branch,Bruce C Wheeler,

Surface chemistry is one of the main factors that contributes to the longevity and compliance of cell patterning. Two to three weeks are required for dissociated, embryonic rat neuronal cultures to mature to the point that they regularly produce spontaneous and evoked responses. Though proper surface chemistry can be achieved through the use of covalent protein attachment, often it is not maintainable for the time periods necessary to study neuronal growth. Here we report a new and effective covalent linking approach using (3-glycidoxypropyl) trimethoxysilane (3-GPS) for creating long term neuronal patterns. Micrometer scale patterns of cell adhesive proteins were formed using microstamping; hippocampal neurons, cultured up to 1 month, followed those patterns. Cells did not grow on unmodified 3-GPS surfaces, producing non-permissive regions for the long-term cell patterning. Patterned neuronal networks were formed on two different types of MEA (polyimide or silicon nitride insulation) and maintained for 3 weeks. Even though the 3-GPS layer increased the impedance of metal electrodes by a factor of 2-3, final impedance levels were low enough that low noise extracellular recordings were achievable. Spontaneous neural activity was recorded as early as 10 days in vitro. Neural recording and stimulation were readily achieved from these networks. Our results showed that 3-GPS could be used on surfaces to immobilize biomolecules for a variety of neural engineering applications.

Epoxy-silane linking of biomolecules is simple and effective for patterning neuronal cultures. Publishing Authors By Initials

Y Nam,DW Branch,BC Wheeler,

For similar investigative techniques: clinical laboratory techniques: culture techniques: tissue engineering research abstracts see: investigative techniques: clinical laboratory techniques: culture techniques: tissue engineering research

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Epoxy-silane linking of biomolecules is simple and effective for patterning neuronal cultures. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Biosensors & bioelectronics

VOLUME: 22

Page Numbers: 589-97

Journal Abbreviation:

ISSN: 0956-5663

DAY: 10

MONTH: 03

YEAR: 2006

Epoxy-silane linking of biomolecules is simple and effective for patterning neuronal cultures. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9001289

Epoxy-silane linking of biomolecules is simple and effective for patterning neuronal cultures. Keywords Mesh Terms:

KEYWORDS: Tissue Engineering

MESH TERMS: methods

Chemical & Substance for Abstract: Epoxy-silane linking of biomolecules is simple and effective for patterning neuronal cultures. Information

Substance Name: Silanes

Registry Number: 0

Grant and Affiliation Information for Epoxy-silane linking of biomolecules is simple and effective for patterning neuronal cultures.

AFFILIATION: Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. ynam1@uiuc.edu

Country: England

AGENCY: United States NIBIB

GRANT: R01 EB000786

ACRONYM: EB

MEDLINETA: Biosens Bioelectron

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