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Mingxin Ye,Lei Xu,Jieyun Yan,Liying Liu,Liyong Ji,Wencheng Wang 한국물리학회 2004 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.44 No.32
Photo-degradation of electric eld poled alpha0-cyano-40-nitro-4-N,N-dimethylaminostilbene (CNDS) doped polymer was investigated by second-harmonic generation (SHG), UV-Vis absorption and FTIR. We found that the addition of a cyano group makes CNDS much more easily photoisomerized, and thus destroys the molecular ordering in poled chromophore doped polymers. A comparison experiment revealed that the photo-isomerization of CNDS is even easier than that of a modal system of azobenzene, which shows that CNDS has potential applications, such as in optical switches.
Xu-Dong TANG,Nan LIU,Wei Wang,Jieyun Yan,Li Xu,Zhongyuan Shen 한국응용곤충학회 2016 Journal of Asia-Pacific Entomology Vol.19 No.1
The silkworm (Bombyx mori) is an important insect for various industrial applications and is also a model insect for the order Lepidoptera. The silkworm is more resistant to deltamethrin at high temperatures than at low temperatures. To elucidate the role of the negative temperature coefficient of deltamethrin in the silkworm, digital gene expression (DGE) analysis was performed for the identification of differentially expressed genes in silkworms challenged with deltamethrin at different temperatures. Compared with deltamethrin exposure at 30 °C, silkworms treated at 20 °C exhibited more severe stress responses, and gene sets associated with peptidoglycan recognition protein (PGRP),mucin, and antimicrobial peptides (AMPs)were downregulated dramatically. Similarly, a decrease in genes related to reactive oxygen species scavenging was also detected, which may have resulted in an imbalance between radical-generating and radical-scavenging systems. These results indicated that the lower mortality rate after deltamethrin treatment at high temperature was caused by a series of gene alterations (quantitative increases) rather than qualitative changes.