In situ synthesis of protein-resistant poly(oligo(ethylene glycol)methacrylate) films in capillary for protein separation
We report a method to modify a silica capillary with poly(oligo(ethylene glycol)methacrylate) (POEGMA) and its performance for protein separation. We optimized the grafting density and thickness of the POEGMA film and investigated the effect of running buffer pH, ionic strength, separation voltage...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/105886 http://hdl.handle.net/10220/20971 |
| Summary: | We report a method to modify a silica capillary with poly(oligo(ethylene glycol)methacrylate) (POEGMA) and
its performance for protein separation. We optimized the grafting density and thickness of the POEGMA film
and investigated the effect of running buffer pH, ionic strength, separation voltage, and sample injection
time. The POEGMA-coated capillary was successfully utilized for the separation of six model proteins.
Under optimized conditions, the resolution was found to be much better than a bare capillary, and even
better than a widely used, commercially available PEG-modified capillary. |
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