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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1021/la1047358
|2 doi
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|a pubmed24n1340.xml
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|a (DE-627)NLM207796106
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|a (NLM)21526810
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Qin, Guoting
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Conductive AFM patterning on oligo(ethylene glycol)-terminated alkyl monolayers on silicon substrates
|b proposed mechanism and fabrication of avidin patterns
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 23.09.2011
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|a Date Revised 22.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Micro- and nanopatterns of biomolecules on inert, ultrathin platforms on nonoxidized silicon are ideal interfaces between silicon-based microelectronics and biological systems. We report here the local oxidation nanolithography with conductive atomic force microscopy (cAFM) on highly protein-resistant, oligo(ethylene glycol) (OEG)-terminated alkyl monolayers on nonoxidized silicon substrates. We propose a mechanism for this process, suggesting that it is possible to oxidize only the top ethylene glycol units to generate carboxylic acid and aldehyde groups on the film surface. We show that avidin molecules can be attached selectively to the oxidized pattern and the density can be varied by altering the bias voltage during cAFM patterning. Biotinylated molecules and nanoparticles are selectively immobilized on the resultant avidin patterns. Since one of the most established methods for immobilization of biomolecules is based on avidin-biotin binding and a wide variety of biotinylated biomolecules are available, this approach represents a versatile means for prototyping any nanostructures presenting these biomolecules on silicon substrates
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|a Journal Article
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|a Research Support, N.I.H., Extramural
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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|a Alkanes
|2 NLM
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|a Dendrimers
|2 NLM
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|a PAMAM Starburst
|2 NLM
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|a Avidin
|2 NLM
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|a 1405-69-2
|2 NLM
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|a Polyethylene Glycols
|2 NLM
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|a 3WJQ0SDW1A
|2 NLM
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|a Gold
|2 NLM
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|a 7440-57-5
|2 NLM
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|a Silicon
|2 NLM
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| 650 |
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|a Z4152N8IUI
|2 NLM
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| 700 |
1 |
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|a Gu, Jianhua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Kai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xiao, Zhongdang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yam, Chi Ming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cai, Chengzhi
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 27(2011), 11 vom: 07. Juni, Seite 6987-94
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:27
|g year:2011
|g number:11
|g day:07
|g month:06
|g pages:6987-94
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|u http://dx.doi.org/10.1021/la1047358
|3 Volltext
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