Electroosmotic flow suppression in capillary electrophoresis: Chemisorption of trimethoxy silane-modified polydimethylacrylamide (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Electroosmotic flow suppression in capillary electrophoresis: Chemisorption of trimethoxy silane-modified polydimethylacrylamide (Articolo in rivista) (literal)

Anno

• 2005-01-01T00:00:00+01:00 (literal)

Alternative label

• Cretich M.; Chiari M.; Pirri G.; Crippa A. (2005)
  Electroosmotic flow suppression in capillary electrophoresis: Chemisorption of trimethoxy silane-modified polydimethylacrylamide
  in Electrophoresis (Weinh., Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Cretich M.; Chiari M.; Pirri G.; Crippa A. (literal)

Pagina inizio

• 1913 (literal)

Pagina fine

• 1919 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 26 (literal)

Rivista

• Electrophoresis (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto di Chimica del Riconoscimento Molecolare (ICRM), CNR (literal)

Titolo

• Electroosmotic flow suppression in capillary electrophoresis: Chemisorption of trimethoxy silane-modified polydimethylacrylamide (literal)

Abstract

• Adsorbed polymers are widely used to suppress electroosmotic flow (EOF) in capillary electrophoresis (CE). Polymeric coatings, physisorbed onto the surface of the capillary wall, are often unstable under harsh conditions. This can be attributed to the reversible nature of the coating which becomes apparent when the adsorbed layer competes with a second species in the electrophoresis buffer solution for attachment/interaction with the capillary surface. In an effort to overcome the problem of coating instability, trimethoxysilane-modified polydimethylacrylamide was synthesized. This copolymer rapidly adsorbs on the wall from ultradilute aqueous solutions. After incubation at a temperature of 60° C silyl groups, which extend from the polymer backbone, form condensation bonds with the silanols on the capillary surface. This enables subsequent formation of strong covalent bonds between the copolymer and the capillary wall. In this research, we establish that physisorption of polymer chains to the surface is essential for close alignment of surface and polymer silane groups which facilitates the formation of covalent bonds. (literal)

Prodotto di

• Istituto di chimica del riconoscimento molecolare (ICRM) (Istituto)
• Sintesi di materiali funzionali e sviluppo di sistemi analitici miniaturizzati (PM.P06.003.001) (Modulo)

Autore CNR

• MARCELLA CHIARI (Unità di personale interno)
• MARINA CRETICH (Persona)
• ALESSANDRO CRIPPA (Persona)
• GIOVANNA PIRRI (Unità di personale esterno)

Incoming links:

Autore CNR di

• MARINA CRETICH (Persona)
• MARCELLA CHIARI (Unità di personale interno)
• ALESSANDRO CRIPPA (Persona)
• GIOVANNA PIRRI (Unità di personale esterno)

Prodotto

• Istituto di chimica del riconoscimento molecolare (ICRM) (Istituto)
• Sintesi di materiali funzionali e sviluppo di sistemi analitici miniaturizzati (PM.P06.003.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Electrophoresis (Rivista)