Development of amino acid-modified PET/PA6 segmented pie bicomponent spunbonded microfiber nonwoven for bilirubin affinity adsorption |
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| Authors: | Xianlin Xu Fang Zhang Wei Wang Nan Li Xupin Zhuang Hang Wang Lei Shi |
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| Institution: | 1.College of Textile,Tianjin Polytechnic University,Tianjin,P. R. China;2.Key Laboratory of Advanced Textile Composite Materials of Ministry of Education,Tianjin Polytechnic University,Tianjin,P. R. China |
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| Abstract: | A novel affinity membrane based on PET/PA6 segmented pie bicomponent spunbonded microfiber nonwoven (PET/PA6 SBSNW) was developed for bilirubin adsorption. PET/PA6 SBSNW was initially fabricated as microfiber nonwoven fabric, and was then ammoniated with ethylenediamine (ETDA). Finally, amino acids as affinity ligands were immobilized on the ammoniated PET/PA6 SBSNW. The amino acid-modified PET/PA6 SBSNW was applied to adsorb bilirubin, and the effects of pH, temperature, species of affinity ligands, and time were investigated. The results showed that amino acid-modified PET/PA6 SBSNW has decent adsorption performance, and adsorption capacity of PET/PA6 SBSNW-Lys peaked at 388.35 mg/g. |
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