Polyacrylate guanidine and polymethacrylate guanidine as novel cationic polymers for effective bilirubin binding

Alexander S. Timin, Alexey V. Solomonov, Evgeniy V. Rumyantsev

Результат исследований: Материалы для журналаСтатьярецензирование

12 Цитирования (Scopus)

Аннотация

The effect of polycationic polymers of polyacrylate guanidine (PAG) and polymethacrylate guanidine (PMAG) on bilirubin absorbance were studied in phosphate buffer (pH 7.4). It was shown that the change in absorbance spectra of bilirubin in the presence of PAG/PMAG can be associated with the formation of a bilirubin-polymer complex and dissociation of tetramers on bilirubin monomers. Also, the organicinorganic composite materials based on silica gels and guanidine polymers were synthesized via the sol-gel technique. The incorporated guanidine polymers have a big influence on particle size distribution of silica gel due to their high crosslinking ability. The infrared spectroscopy revealed the presence of guanidine polymers inside solid networks of silica gel. The bilirubin adsorption process onto a guanidine functionalized silica surface was investigated. The Langmuir and Redlich-Peterson isotherm models were tested to explain the adsorption mechanism. The analysis of the adsorption isotherms confirms the possibility of electrostatic interactions of bilirubin molecules with guanidine polymers incorporated inside silica matrix. We conclude that cationic guanidine polymers might be effectively applied for bilirubin removal.

Язык оригиналаАнглийский
Номер статьи400
ЖурналJournal of Polymer Research
Том21
Номер выпуска4
DOI
СостояниеОпубликовано - 2014
Опубликовано для внешнего пользованияДа

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Organic Chemistry

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