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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1021/la501306n
|2 doi
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|a pubmed24n0802.xml
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|a (NLM)25100297
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|a DE-627
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|a eng
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|a Nagaiyanallur, Venkataraman V
|e verfasserin
|4 aut
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|a Tailoring SU-8 surfaces
|b covalent attachment of polymers by means of nitrene insertion
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 12.05.2015
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|a Date Revised 26.08.2014
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The photoresist material SU-8 has found a variety of applications in microfabricated systems, such as microelectromechanical (MEMS) and lab-on-a-chip devices. Although the bulk properties of SU-8 are appropriate for many such applications, tailoring its surface-chemical properties has, until now, proven to be challenging but is essential in order to carry out any subsequent self-assembly steps. We have demonstrated that the SU-8 surface can be functionalized by the covalent grafting of a wide variety of polymers by means of nitrene insertion. This is readily achieved with poly(allylamine)-graft-perfluorophenyl azide (PAAm-g-PFPA) or poly(ethyleneimine)-graft-PFPA (PEI-g-PFPA), which can form covalent bonds to both the SU-8 surface and a functionalizing polymer. As examples, poly(diallyl-dimethylammonium chloride) (PDDA) and poly(styrenesulfonate) (PSS) have been covalently linked to a SU-8 substrate, yielding positively and negatively charged surfaces, respectively. The grafted polymers were characterized by means of X-ray photoelectron spectroscopy, and their charge characteristics were confirmed via charged-particle adsorption
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|a Journal Article
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|a Kumar, Deepak
|e verfasserin
|4 aut
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|a Rossi, Antonella
|e verfasserin
|4 aut
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|a Zürcher, Stefan
|e verfasserin
|4 aut
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|a Spencer, Nicholas D
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 30(2014), 33 vom: 26. Aug., Seite 10107-11
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:30
|g year:2014
|g number:33
|g day:26
|g month:08
|g pages:10107-11
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|u http://dx.doi.org/10.1021/la501306n
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