Biodegradation control of a polyamide 4–visible-light-sensitive TiO2 composite by a fluorescent light irradiation
作者： Akihiko Masui , Satoshi Ikawa , Norioki Kawasaki , Naoko Yamano , Atsuyoshi Nakayama
DOI: 10.1016/J.POLYMDEGRADSTAB.2019.06.019
关键词: Antibacterial activity 、 Visible spectrum 、 Materials science 、 Irradiation 、 Copper 、 Nuclear chemistry 、 Biodegradation 、 Polyamide 、 Biodegradable polymer 、 Nanocomposite
摘要: Abstract A biodegradable polymer–titanium dioxide (TiO 2 ) nanocomposite with antimicrobial activity by photooxidation of the composited TiO under fluorescent light irradiation was investigated. Polyamide 4 (PA4)–visible-light-sensitive films were prepared. The exhibited antibacterial slightly in dark, whereas against Escherichia coli enhanced according to increase concentration for 1 h at 4000 lx. As illumination intensity and time, high activity. cell count on 1 wt% decreased three orders magnitude comparing that without 6 h at 3000 Staphylococcus aureus resistant PA4-TiO nanocomposites contrast E. . In contrast, a PA4-degrading bacteria (ND-11) sensitive addition, copper containing Therefore, biodegradability reduced (copper) dark. It suggested effects microbial differ from every polymer. this study, we able impart biodegradation control function, which is suppressed progressed PA4 compositing visible-light-sensitive
sci-hub.se 参考文章(16)
Ryoiti Shukuya, George W. Schwert, Glutamic Acid Decarboxylase: I. ISOLATION PROCEDURES AND PROPERTIES OF THE ENZYME Journal of Biological Chemistry. ,vol. 235, pp. 1649- 1652 ,(1960) , 10.1016/S0021-9258(19)76856-2
Naoko Yamano, Norioki Kawasaki, Maki Oshima, Atsuyoshi Nakayama, Polyamide 4 with long-chain fatty acid groups – Suppressing the biodegradability of biodegradable polymers Polymer Degradation and Stability. ,vol. 108, pp. 116- 122 ,(2014) , 10.1016/J.POLYMDEGRADSTAB.2014.06.011
Valentina Siracusa, Pietro Rocculi, Santina Romani, Marco Dalla Rosa, Biodegradable polymers for food packaging: a review Trends in Food Science and Technology. ,vol. 19, pp. 634- 643 ,(2008) , 10.1016/J.TIFS.2008.07.003
Hitoshi Ando, Norioki Kawasaki, Naoko Yamano, Kouichi Uegaki, Atsuyoshi Nakayama, Biodegradation of a poly(ε-caprolactone-co-l-lactide)–visible-light-sensitive TiO2 composite with an on/off biodegradation function Polymer Degradation and Stability. ,vol. 114, pp. 65- 71 ,(2015) , 10.1016/J.POLYMDEGRADSTAB.2015.02.003
Naoko Yamano, Atsuyoshi Nakayama, Norioki Kawasaki, Noboru Yamamoto, Seiichi Aiba, Mechanism and Characterization of Polyamide 4 Degradation by Pseudomonas sp. Journal of Polymers and The Environment. ,vol. 16, pp. 141- 146 ,(2008) , 10.1007/S10924-008-0090-Y
Norioki Kawasaki, Atsuyoshi Nakayama, Naoko Yamano, Sahori Takeda, Yoshikazu Kawata, Noboru Yamamoto, Sei-ichi Aiba, Synthesis, thermal and mechanical properties and biodegradation of branched polyamide 4 Polymer. ,vol. 46, pp. 9987- 9993 ,(2005) , 10.1016/J.POLYMER.2005.06.092
Alma D. Homola, Eugene E. Dekker, Decarboxylation of gamma-hydroxyglutamate by glutamate decarboxylase of Escherichia coli (ATCC 11246). Biochemistry. ,vol. 6, pp. 2626- 2634 ,(1967) , 10.1021/BI00860A046
Xiaoqing Qiu, Masahiro Miyauchi, Kayano Sunada, Masafumi Minoshima, Min Liu, Yue Lu, Ding Li, Yoshiki Shimodaira, Yasuhiro Hosogi, Yasushi Kuroda, Kazuhito Hashimoto, Hybrid CuxO/TiO2Nanocomposites As Risk-Reduction Materials in Indoor Environments ACS Nano. ,vol. 6, pp. 1609- 1618 ,(2012) , 10.1021/NN2045888
Kazuhiko Hashimoto, Tsuyoshi Hamano, Masahiko Okada, Degradation of several polyamides in soils Journal of Applied Polymer Science. ,vol. 54, pp. 1579- 1583 ,(1994) , 10.1002/APP.1994.070541023
D. Briassoulis, An Overview on the Mechanical Behaviour of Biodegradable Agricultural Films Journal of Polymers and The Environment. ,vol. 12, pp. 65- 81 ,(2004) , 10.1023/B:JOOE.0000010052.86786.EF