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Micro-sensors based on hypha-templated coaxial microfibers†
Analytical Methods ( IF 2.7 ) Pub Date : 2017-11-24 00:00:00 , DOI: 10.1039/c7ay02318a Li Zhihua 1, 2, 3, 4 , Shi Jiyong 1, 2, 3, 4 , Huang Xiaowei 1, 2, 3, 4 , Zou Xiaobo 1, 2, 3, 4 , Hu Xuetao 1, 2, 3, 4 , Zhou Xucheng 1, 2, 3, 4 , Haroon Elrasheid Tahir 1, 2, 3, 4
Analytical Methods ( IF 2.7 ) Pub Date : 2017-11-24 00:00:00 , DOI: 10.1039/c7ay02318a Li Zhihua 1, 2, 3, 4 , Shi Jiyong 1, 2, 3, 4 , Huang Xiaowei 1, 2, 3, 4 , Zou Xiaobo 1, 2, 3, 4 , Hu Xuetao 1, 2, 3, 4 , Zhou Xucheng 1, 2, 3, 4 , Haroon Elrasheid Tahir 1, 2, 3, 4
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Biological templates show great potential in the fabrication of advanced materials since they are green, renewable and easy to obtain. Hyphae of Penicillium are demonstrated to be a versatile template for the fabrication of coaxial microfibers. Five kinds of nanomaterials, including ZnO, Fe3O4, Cu(OH)2, polypyrrole (PPy) and polyaniline (PANI), are coated on the hyphal surface without any modification. SEM, EDS, XRD and FT-IR were employed to confirm the morphology and chemical components of the prepared microfibers. The results showed that the fabricated nanomaterials were attached firmly on the hyphal surface to form an outside shell. An adsorption experiment showed that the cations could be attached on the hyphal surface with the help of related functional groups, which explained well the formation mechanism of the coaxial structure. Microsensors based on PANI/hypha, PPy/hypha and ZnO/hypha microfibers were fabricated and tested with TMA as the model gas. The prepared sensors showed a good linear response toward TMA with an R2 higher than 0.977, relative standard deviation for reproducibility measurement lower than 7.2%, and fast response–recovery speed, which demonstrate the applicability of the prepared coaxial microfibers.
中文翻译：
基于菌丝模板化的同轴微纤维的微传感器†
生物模板具有绿色，可再生且易于获得的特点，因此在制造高级材料方面显示出巨大的潜力。青霉菌的菌丝被证明是用于制造同轴微纤维的通用模板。ZnO，Fe 3 O 4，Cu（OH）2等五种纳米材料聚吡咯（PPy）和聚苯胺（PANI）直接涂在菌丝表面。SEM，EDS，XRD和FT-IR证实了所制备超细纤维的形貌和化学成分。结果表明，所制备的纳米材料牢固地附着在菌丝表面上，形成外壳。吸附实验表明，阳离子可以借助相关的官能团附着在菌丝表面，很好地解释了同轴结构的形成机理。制造了基于PANI /菌丝，PPy /菌丝和ZnO /菌丝微纤维的微传感器，并以TMA作为模型气体进行了测试。制备的传感器对R 2的TMA表现出良好的线性响应 高于0.977，再现性测量的相对标准偏差低于7.2％，响应恢复速度快，证明了所制备同轴微纤维的适用性。
更新日期：2017-11-24
中文翻译：
基于菌丝模板化的同轴微纤维的微传感器†
生物模板具有绿色，可再生且易于获得的特点，因此在制造高级材料方面显示出巨大的潜力。青霉菌的菌丝被证明是用于制造同轴微纤维的通用模板。ZnO，Fe 3 O 4，Cu（OH）2等五种纳米材料聚吡咯（PPy）和聚苯胺（PANI）直接涂在菌丝表面。SEM，EDS，XRD和FT-IR证实了所制备超细纤维的形貌和化学成分。结果表明，所制备的纳米材料牢固地附着在菌丝表面上，形成外壳。吸附实验表明，阳离子可以借助相关的官能团附着在菌丝表面，很好地解释了同轴结构的形成机理。制造了基于PANI /菌丝，PPy /菌丝和ZnO /菌丝微纤维的微传感器，并以TMA作为模型气体进行了测试。制备的传感器对R 2的TMA表现出良好的线性响应 高于0.977，再现性测量的相对标准偏差低于7.2％，响应恢复速度快，证明了所制备同轴微纤维的适用性。
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