以超临界CO2流体为反应介质,通过固相接枝反应合成了具有PEG侧链的聚(苯乙烯-马来酸酐)(SMA)功能化梳状两亲共聚物(SMA-g-MPEG),用1 H NMR和FT-IR表征了SMA-g-MPEG的结构和组成。并以SMA-g-MPEG为亲水改性材料通过非溶剂诱导相分离法制...以超临界CO2流体为反应介质,通过固相接枝反应合成了具有PEG侧链的聚(苯乙烯-马来酸酐)(SMA)功能化梳状两亲共聚物(SMA-g-MPEG),用1 H NMR和FT-IR表征了SMA-g-MPEG的结构和组成。并以SMA-g-MPEG为亲水改性材料通过非溶剂诱导相分离法制备PVDF共混复合膜。表面元素分析结果表明SMA-g-MPEG共聚物中的PEG侧链在膜表面形成富集;纯水接触角测定和BSA吸附试验表明膜的亲水性和抗蛋白质污染性能得到明显的提高。展开更多
APTES-bounded MNP were prepared by chemical coprecipitation,followed by coating with((γ-aminopropyl))triethoxysilane.Norvancomycin hydrochloride(Van) was then immobilized onto the amino-functionalized nanopartiles.Po...APTES-bounded MNP were prepared by chemical coprecipitation,followed by coating with((γ-aminopropyl))triethoxysilane.Norvancomycin hydrochloride(Van) was then immobilized onto the amino-functionalized nanopartiles.Powder X-ray diffraction(XRD) results show the inverse spinel structure of MNP.The physics property measurement system(PPMS) indicates that the MNP are superparamagnetic.The presence of Van and APTES on the surface of MNP is confirmed by FTIR.By a separation assay of S.aureus and E.coli BL21,it is proved that MNP-APTES-Van can selectively capture S.aureus within 10 min,which can be isolated readily by applying an external magnetic field.展开更多
文摘以超临界CO2流体为反应介质,通过固相接枝反应合成了具有PEG侧链的聚(苯乙烯-马来酸酐)(SMA)功能化梳状两亲共聚物(SMA-g-MPEG),用1 H NMR和FT-IR表征了SMA-g-MPEG的结构和组成。并以SMA-g-MPEG为亲水改性材料通过非溶剂诱导相分离法制备PVDF共混复合膜。表面元素分析结果表明SMA-g-MPEG共聚物中的PEG侧链在膜表面形成富集;纯水接触角测定和BSA吸附试验表明膜的亲水性和抗蛋白质污染性能得到明显的提高。
文摘APTES-bounded MNP were prepared by chemical coprecipitation,followed by coating with((γ-aminopropyl))triethoxysilane.Norvancomycin hydrochloride(Van) was then immobilized onto the amino-functionalized nanopartiles.Powder X-ray diffraction(XRD) results show the inverse spinel structure of MNP.The physics property measurement system(PPMS) indicates that the MNP are superparamagnetic.The presence of Van and APTES on the surface of MNP is confirmed by FTIR.By a separation assay of S.aureus and E.coli BL21,it is proved that MNP-APTES-Van can selectively capture S.aureus within 10 min,which can be isolated readily by applying an external magnetic field.