The morphologies of triblock copolymer/homopolymer blend films, ABA/A and ABAIB, confined between two neutral hard walls were studied via Monte Carlo （MC） simulation on a simple .cubic lattice. The effects of φh （...The morphologies of triblock copolymer/homopolymer blend films, ABA/A and ABAIB, confined between two neutral hard walls were studied via Monte Carlo （MC） simulation on a simple .cubic lattice. The effects of φh （the volume fraction of homopolymer） and Md/Mb （the molecular weight of homopolymer in relation to that of the corresponding blocks in the copolymer） on the morphologies were investigated in detail.展开更多
A simple solution-phase approach has been demonstrated for the large-scale synthesis of silver nanowires with diameters in the range of 15–25 nm,and lengths usually in the range of tens of micrometers.In the presence...A simple solution-phase approach has been demonstrated for the large-scale synthesis of silver nanowires with diameters in the range of 15–25 nm,and lengths usually in the range of tens of micrometers.In the presence of gemini surfactant 1,3-bis(cetyldimethylammonium)propane dibro-mide(16-3-16),the growth of silver could be directed into a highly anisotropic mode to form uniform nanowires with aspect ratios up to about 2,000.X-ray photoelectron spec-troscopy(XPS),transmission electron microscopy(TEM),energy-dispersive X-ray(EDX),X-ray powder diffraction(XRD),electron diffraction(ED),and UV-vis absorption spectroscopy,were used to characterize the as-prepared silver nanowires,indicating the formation of a highly pure phase,good crystallinity,as well as a uniform diameter.展开更多
Copper(Ⅱ)theophylline[Cu(THP)2(H2O)4]complex in nanoscale has synthesized by ultrasonic sonication method.This method was used in the development of smaller,dispersed,and unaggregated nanoparticles(NPs).The structure...Copper(Ⅱ)theophylline[Cu(THP)2(H2O)4]complex in nanoscale has synthesized by ultrasonic sonication method.This method was used in the development of smaller,dispersed,and unaggregated nanoparticles(NPs).The structure of nanocomplex was described and suggested by the molar conductance,Fourier transform infrared spectroscopy(FTIR),ultraviolet-visible spectroscopy(UV-Vis),solubility,atomic fire absorption,and C.H.N.elemental analysis as octahedral geometry.The size and morphology of nanocomplex measured by transmission electron microscopy(TEM)were 20 nm.The nanocomplex was studied on phosphodiesterase enzyme activity in human serum of Iraqi patient›s asthma disease.The results showed a highly significant(p<0.01)increase in the serum levels of phosphodiesterase enzyme activity in asthma patients(mean=14.939±3.021 ng/mL)compared with a control group(mean=9.974±2.032 ng/mL).The result also showed a highly significant(p<0.01)decrease in the serum levels of phosphodiesterase activity in patients of asthma disease with theophylline(mean=11.253±2.479 ng/mL)compared to serum patients without nano and control groups.It is vital that the result showed a highly significant(p<0.01)decrease in the serum levels of phosphodiesterase activity in patients of asthma disease with copper nano complex(mean=9.563±2.082 ng/mL)compared in patients of asthma disease with and without theophylline.As for comparing asthma disease with copper nano complex and control group,the result showed there was no significant effect(p>0.05).展开更多
基金Acknowledgements This work is supported by the National Natural Science Foundation of China （Projects No. 20236010. 20476025, 20490200）. E-Institute of Shanghai High Institution Grid （No.200303） and Shanghai Municipal Education Commission of China.
文摘The morphologies of triblock copolymer/homopolymer blend films, ABA/A and ABAIB, confined between two neutral hard walls were studied via Monte Carlo （MC） simulation on a simple .cubic lattice. The effects of φh （the volume fraction of homopolymer） and Md/Mb （the molecular weight of homopolymer in relation to that of the corresponding blocks in the copolymer） on the morphologies were investigated in detail.
基金supported by the National Natural Science Foundation of China(Grant No.20490200)the Doctoral Research Foundation Sponsored by the Ministry of Education of China(Granct No.20050251004)Shanghai Municipal Commission of Education in China。
文摘A simple solution-phase approach has been demonstrated for the large-scale synthesis of silver nanowires with diameters in the range of 15–25 nm,and lengths usually in the range of tens of micrometers.In the presence of gemini surfactant 1,3-bis(cetyldimethylammonium)propane dibro-mide(16-3-16),the growth of silver could be directed into a highly anisotropic mode to form uniform nanowires with aspect ratios up to about 2,000.X-ray photoelectron spec-troscopy(XPS),transmission electron microscopy(TEM),energy-dispersive X-ray(EDX),X-ray powder diffraction(XRD),electron diffraction(ED),and UV-vis absorption spectroscopy,were used to characterize the as-prepared silver nanowires,indicating the formation of a highly pure phase,good crystallinity,as well as a uniform diameter.
基金supported by the Chemistry Department,college of science,Mustansiriyah University.
文摘Copper(Ⅱ)theophylline[Cu(THP)2(H2O)4]complex in nanoscale has synthesized by ultrasonic sonication method.This method was used in the development of smaller,dispersed,and unaggregated nanoparticles(NPs).The structure of nanocomplex was described and suggested by the molar conductance,Fourier transform infrared spectroscopy(FTIR),ultraviolet-visible spectroscopy(UV-Vis),solubility,atomic fire absorption,and C.H.N.elemental analysis as octahedral geometry.The size and morphology of nanocomplex measured by transmission electron microscopy(TEM)were 20 nm.The nanocomplex was studied on phosphodiesterase enzyme activity in human serum of Iraqi patient›s asthma disease.The results showed a highly significant(p<0.01)increase in the serum levels of phosphodiesterase enzyme activity in asthma patients(mean=14.939±3.021 ng/mL)compared with a control group(mean=9.974±2.032 ng/mL).The result also showed a highly significant(p<0.01)decrease in the serum levels of phosphodiesterase activity in patients of asthma disease with theophylline(mean=11.253±2.479 ng/mL)compared to serum patients without nano and control groups.It is vital that the result showed a highly significant(p<0.01)decrease in the serum levels of phosphodiesterase activity in patients of asthma disease with copper nano complex(mean=9.563±2.082 ng/mL)compared in patients of asthma disease with and without theophylline.As for comparing asthma disease with copper nano complex and control group,the result showed there was no significant effect(p>0.05).
