| 具有抗菌性能的新型载银细菌纤维素纳米纤维(英文) |
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| 引用本文： | 杨加志,刘晓丽,黄立勇,孙东平. 具有抗菌性能的新型载银细菌纤维素纳米纤维(英文)[J]. 中国化学工程学报, 2013, 21(12): 1419-1424. DOI: 10.1016/S1004-9541(13)60636-9 |
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| 作者姓名： | 杨加志 刘晓丽 黄立勇 孙东平 |
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| 作者单位： | 1.Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, Nanjing University of Science and Technology, Nanjing 210094, China;2.State Key Laboratory of Bioelectronics, School of Biological and Medical Engineering, Southeast University, Nanjing 210096, China;3.Taixing Yulang Chemical Co., Ltd. |
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| 基金项目： | Supported by the National Natural Science Foundation of China(21206076);the Natural Science Foundation of Jiangsu Province(BK2012401 and BK2011715);National High Technology Research and Development Program of China(2011AA050701) |
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| 摘 要： | In this work, we describe a novel facile method to prepare long one-dimensional hybrid nanofibers by using hydrated bacterial cellulose nanofibers（BCF） as a template. Silver（Ag） nanoparticles with an average diameter of 1.5 nm were well dispersed on BCF via a simple in situ chemical-reduction between AgNO3 and NaBH4 at a relatively low temperature. A growth mechanism is proposed that Ag nanoparticles are uniformly anchored onto BCF by coordination with BC-containing hydroxyl groups. The bare BCF and as-prepared Ag/BCF hybrid nanofibers were characterized by several techniques including transmission electron microscopy, X-ray diffraction, thermogravimetric analyses, and ultraviolet-visible（UV-Vis） absorption spectra. The antibacterial properties of Ag/BCF hybrid nanofibers against Escherichia coli（E. coli, Gram-negative） and Staphylococcu saureus（S. saureus, Gram-positive） bacteria were evaluated by using modified Kirby Bauer method and colony forming count method. The results show that Ag nanoparticles are well dispersed on BCF surface via in situ chemical-reduction. The Ag/BCF hybrid nanofiber presents strong antibacterial property and thus offers its candidature for use as functional antimicrobial agents.
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| 关 键 词： | bacterial cellulose nanofiber antimicrobial agents silver |
| 收稿时间： | 2013-05-16 |
Antibacterial Properties of Novel Bacterial Cellulose Nanofiber Containing Silver Nanoparticles |
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| YANG Jiazhi;LIU Xiaoli;HUANG Liyong;SUN Dongping. Antibacterial Properties of Novel Bacterial Cellulose Nanofiber Containing Silver Nanoparticles[J]. Chinese Journal of Chemical Engineering, 2013, 21(12): 1419-1424. DOI: 10.1016/S1004-9541(13)60636-9 |
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| Authors: | YANG Jiazhi LIU Xiaoli HUANG Liyong SUN Dongping |
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| Affiliation: | 1.Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, Nanjing University of Science and Technology, Nanjing 210094, China;2.State Key Laboratory of Bioelectronics, School of Biological and Medical Engineering, Southeast University, Nanjing 210096, China;3.Taixing Yulang Chemical Co., Ltd. |
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| Abstract: | In this work, we describe a novel facile method to prepare long one-dimensional hybrid nanofibers by using hydrated bacterial cellulose nanofibers (BCF) as a template. Silver (Ag) nanoparticles with an average diameter of 1.5 nm were well dispersed on BCF via a simple in situ chemical-reduction between AgNO3 and NaBH4 at a relatively low temperature. A growth mechanism is proposed that Ag nanoparticles are uniformly anchored onto BCF by coordination with BC-containing hydroxyl groups. The bare BCF and as-prepared Ag/BCF hybrid nanofibers were characterized by several techniques including transmission electron microscopy, X-ray diffraction, thermogravimetric analyses, and ultraviolet-visible (UV-Vis) absorption spectra. The antibacterial properties of Ag/BCF hybrid nanofibers against Escherichia coli (E. coli, Gram-negative) and Staphylococcu saureus (S. saureus, Gram-positive) bacteria were evaluated by using modified Kirby Bauer method and colony forming count method. The results show that Ag nanoparticles are well dispersed on BCF surface via in situ chemical-reduction. The Ag/BCF hybrid nanofiber presents strong antibacterial property and thus offers its candidature for use as functional antimicrobial agents. |
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| Keywords: | bacterial cellulose nanofiber antimicrobial agents silver |
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