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首页> 外文期刊>RSC Advances >PHB/PCL fibrous membranes modified with SiO2@TiO2-based core@shell composite nanoparticles for hydrophobic and antibacterial applications
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PHB/PCL fibrous membranes modified with SiO2@TiO2-based core@shell composite nanoparticles for hydrophobic and antibacterial applications

机译：用SiO 2的纤维膜改性PHB / PCL纤维膜，用于疏水和抗菌应用的SiO 2核心甲壳复合纳米粒子

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摘要

In order to prepare multifunctional fibrous membranes with hydrophobicity, antibacterial properties and UV resistance, we used silica and titanium dioxide for preparing SiO2@TiO2 nanoparticles (SiO2@TiO2 NPs) to create roughness on the fibrous membranes surfaces. The introduction of TiO2 was used for improving UV resistance. N-Halamine precursor and silane precursor were introduced to modify SiO2@TiO2 NPs to synthesize SiO2@TiO2-based core@shell composite nanoparticles. The hydrophobic antibacterial fibrous membranes were prepared by a dip-pad process of electrospun biodegradable polyhydroxybutyrate/poly-epsilon-caprolactone (PHB/PCL) with the synthesized SiO2@TiO2-based core@shell composite nanoparticles. TEM, SEM and FT-IR were used to characterize the synthesized SiO2@TiO2-based core@shell composite nanoparticles and the hydrophobic antibacterial fibrous membranes. The fibrous membranes not only showed excellent hydrophobicity with an average water contact angle of 144 degrees +/- 1 degrees, but also appreciable air permeability. The chlorinated fibrous membranes could inactivate all S. aureus and E. coli O157:H7 after 5 min and 60 min of contact, respectively. In addition, the chlorinated fibrous membranes exhibited outstanding cell compatibility with 102.1% of cell viability. Therefore, the prepared hydrophobic antibacterial degradable fibrous membranes may have great potential application for packaging materials.
机译：为了制备具有疏水性的多功能纤维膜，抗菌性能和紫外线，我们使用二氧化硅和二氧化钛制备SiO 2 @ TiO2纳米颗粒（SiO 2 @ TiO 2 NP），以在纤维膜表面上产生粗糙度。用于改善紫外线的TiO 2引入。将N-卤素前体和硅烷前体引入改性SiO 2 @ TiO2 NPS以合成SiO 2〜TiO2的核心甲壳复合纳米粒子。通过电纺可生物降解的多羟基丁酸酯/聚ε-己内酯（PHB / PCL）的浸渍焊盘工艺制备疏水性抗菌纤维膜，用合成的SiO 2基核心甲壳复合纳米颗粒制备。 TEM，SEM和FT-IR用于表征合成的SiO 2 @ TiO2核心壳复合纳米粒子和疏水性抗菌纤维膜。纤维膜不仅显示出优异的疏水性，具有144度+/- 1度的平均水接触角，而且具有明显的透气性。氯化纤维膜分别可以分别在5分钟和60分钟的接触后灭活所有S. aureus和大肠杆菌O157：H7。此外，氯化纤维膜表现出与102.1％的细胞活力具有出色的细胞相容性。因此，制备的疏水性抗菌可降解纤维膜可具有很大的潜在应用包装材料。

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  • 来源
    《RSC Advances》 |2019年第40期|共10页
  • 作者

    Lin Xinghuan; Li Shanshan; Jung Joonhoo; Ma Wei; Li Lin; Ren Xuehong; Sun Yuyu; Huang Tung-Shi;

  • 作者单位

    Jiangnan Univ Coll Text &

    Clothing Minist Educ Key Lab Ecotext Wuxi 214122 Jiangsu Peoples R China;

    Jiangnan Univ Coll Text &

    Clothing Minist Educ Key Lab Ecotext Wuxi 214122 Jiangsu Peoples R China;

    Univ Massachusetts Dept Chem Lowell MA 01854 USA;

    Jiangnan Univ Coll Text &

    Clothing Minist Educ Key Lab Ecotext Wuxi 214122 Jiangsu Peoples R China;

    Jiangnan Univ Coll Text &

    Clothing Minist Educ Key Lab Ecotext Wuxi 214122 Jiangsu Peoples R China;

    Jiangnan Univ Coll Text &

    Clothing Minist Educ Key Lab Ecotext Wuxi 214122 Jiangsu Peoples R China;

    Univ Massachusetts Dept Chem Lowell MA 01854 USA;

    Dept Poultry Sci Auburn AL 36849 USA;

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  • 正文语种 eng
  • 中图分类 化学;
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