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- 저자 : Zehua Xia (검색결과 2 건)
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Fabrication of polymer compound microlens by lens-on-lens microstructures
Zehua Xia,Yan Li,Xiaoya Su,Yanhua Han,Zhongyi Guo,Jian-Min Gao,Qiaoqun Sun,Shiliang Qu 한국물리학회 2017 Current Applied Physics Vol.17 No.1
We proposed a novel method for fabricating polymer compound microlenses (PCMLs) using micro-inkjet technique and subsequent curing process. Two different types of PCMLs with sandwich microstructure (PDMS-Glycerol-PDMS), concave and convex PCMLs, have been designed and fabricated in experiments. Convex PCML has two real images and two foci. The concave PCML has one real and one virtual focal planes, which can generate one real image and one virtual image respectively. Moreover, the diameter of concave PCML can be controlled by adjusting the curing time and temperature. The proposed method is simple, efficient and suitable for realizing large-scale high numerical aperture PCMLs array, which has potential applications in diverse optical systems such as optical storage and three-dimensional imaging.
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Effects of chlorantraniliprole on detoxification enzymes activities in Locusta migratoria L.
Guangchun Cao,Miao Jia,Xia Zhao,Lei Wang,Xiongbing Tu,Guangjun Wang,Xiangqun Nong,Zehua Zhang 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.3
The broad insecticide chlorantraniliprole causes death by activating the ryanodine receptor, and its effects on detoxification enzymes limit its proper rotation and mixed use with other pesticides. Therefore, we studied the changes in detoxification enzymes activities of Locusta migratoria L. nymphs induced by chlorantraniliprole. When nymphs of locust were treated with chlorantraniliprole only on the first day, the LC50 was 4.8 μg mL−1, and the activities of esterases (ESTs) and glutathione S-transferases (GSTs) increased, but the activity of multifunction oxidases (MFOs) increased only at 3 day after treatment, although the activities fluctuated over 7 days after treatment. When the nymphs of locust were treated for 7 days, the LC50 was 2.3–3.1 μg mL−1, and similarly the activities of ESTs and GSTs increased while that of MFOs decreased significantly in a concentrationdependent manner. Synergism of triphenylphosphate, piperonyl butoxide, and diethyl maleate with chlorantraniliprole toxicity confirmed the correlation between chlorantraniliprole and changes in ESTs, GSTs, and MFOs activities. Herein, we improved the knowledge about the effects of chlorantraniliprole on these detoxification enzymes of L. migratória. These results clarified the effects of chlorantraniliprole on the activities of ESTs, GSTs, and MFOs in L. migratoria, and will provide insight into its proper rotation and mixed use with other pesticides.
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