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Qiangxing Zhang,Jianfeng Liu,Huining Xu,Yin Zeng,Chunping Wang,Lu Wang 대한토목학회 2019 KSCE Journal of Civil Engineering Vol.23 No.12
To investigate the gas sealing capacity of limestone as cap rock for gas reservoir at different burial depths, triaxial compression coupled with permeability tests of limestone subjected to different confining pressures and temperatures were carried out using the improved MTS 815 test machine. During the tests, acoustic emission (AE) monitoring system was also employed to estimate the rock damage. Test results demonstrated a degradation of triaxial compression strength with the increase in temperature and decrease of confining pressure. An empirical equation for the peak stress was established considering confining pressure and temperature. Three different permeability evolution patterns of limestone samples can be proposed based on the experimental results under different coupled thermo-hydro-mechanical (THM) conditions. According to the spatial-temporal characteristics of AE signals, permeability evolution was highly related to the fracture growth and connection in limestone. Ultimately, the experimental results revealed that the permeability of limestone gradually decreased with the increasing confining pressure and temperature. In addition, an exponential relationship between initial permeability and confining pressure was established.
Junxiao Ye,Xing Pei,Hui Cui,Zhili Yu,이혁진,Jian-Xin Wang,Xu Wang,Lu Sun,Huining He,Victor C. Yang 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.63 No.-
The covalent attachment of CPPs to siRNA molecules offers great potential for CPP-mediated siRNA delivery. We recently reported a concise and high-yield synthesis strategy of the cell-permeable, cytosol-dissociable LMWP-siRNA covalent conjugate. Herein, cell uptake mechanism and cellular toxicity studies of this conjugate were performed to evaluate the potential of LMWP-siRNA conjugate for clinical translation. Cellular uptake mechanism study indicated that the conjugate could be taken up by cells via multiple pathways, including direct penetration of the plasma membrane and clathrin- and caveolae-independent endocytosis. In vitro cytotoxicity study revealed that the conjugation promoted internalization in a low-toxic fashion.
Ye, Junxiao,Pei, Xing,Cui, Hui,Yu, Zhili,Lee, Hyukjin,Wang, Jianxin,Wang, Xu,Sun, Lu,He, Huining,Yang, Victor C. THE KOREAN SOCIETY OF INDUSTRIAL AND ENGINEERING 2018 JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY -S Vol.63 No.-
<P><B>Abstract</B></P> <P>The covalent attachment of CPPs to siRNA molecules offers great potential for CPP-mediated siRNA delivery. We recently reported a concise and high-yield synthesis strategy of the cell-permeable, cytosol-dissociable LMWP-siRNA covalent conjugate. Herein, cell uptake mechanism and cellular toxicity studies of this conjugate were performed to evaluate the potential of LMWP-siRNA conjugate for clinical translation. Cellular uptake mechanism study indicated that the conjugate could be taken up by cells via multiple pathways, including direct penetration of the plasma membrane and clathrin- and caveolae-independent endocytosis. <I>In vitro</I> cytotoxicity study revealed that the conjugation promoted internalization in a low-toxic fashion.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>