Separation of nucleotides with an aqueous mobile phase using pH- and temperature-responsive polymer modified packing materials

Eri Ayano, Chikako Sakamoto, Hideko Kanazawa, Akihiko Kikuchi, Teruo Okano

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

A new method for the qualitative analysis of adenosine nucleotides (AMP, ADP, and ATP) and synthetic oligonucleotides has been proposed, utilizing a pH- and temperature-responsive polymer of N-isopropylacrylamide (NIPAAm), butyl methacrylate (BMA) and N,N-dimethylaminopropylacrylamide (DMAPAAm) as the stationary phase of HPLC. In the chromatographic system using the copolymer with ionizable groups of modified packing materials, we investigated how to separate adenosine nucleotides and oligonucleotides by temperature. The properties of the surface of the copolymer-grafted stationary phase altered from hydrophilic to hydrophobic and from charged to non-charged due to changes in the temperature and in the pH, respectively. In addition, it is possible to exhibit and hide ion-exchange groups on the polymer chain surface by temperature changes. These phenomena result from changes in the charge and hydrophobicity of the pH- and temperature-responsive polymer on the stationary surface with the controlling temperature. A pH- and temperature-responsive chromatography would be greatly useful for biopolymer and nucleotide separation and purification. 2006

Original languageEnglish
Pages (from-to)539-543
Number of pages5
JournalAnalytical Sciences
Volume22
Issue number4
DOIs
Publication statusPublished - 2006 Apr

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Polymers
Nucleotides
Temperature
Oligonucleotides
Adenosine
Copolymers
Biopolymers
Adenosine Monophosphate
Hydrophobicity
Chromatography
Adenosine Diphosphate
Purification
Ion exchange
Adenosine Triphosphate

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Separation of nucleotides with an aqueous mobile phase using pH- and temperature-responsive polymer modified packing materials. / Ayano, Eri; Sakamoto, Chikako; Kanazawa, Hideko; Kikuchi, Akihiko; Okano, Teruo.

In: Analytical Sciences, Vol. 22, No. 4, 04.2006, p. 539-543.

Research output: Contribution to journalArticle

Ayano, Eri ; Sakamoto, Chikako ; Kanazawa, Hideko ; Kikuchi, Akihiko ; Okano, Teruo. / Separation of nucleotides with an aqueous mobile phase using pH- and temperature-responsive polymer modified packing materials. In: Analytical Sciences. 2006 ; Vol. 22, No. 4. pp. 539-543.
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