Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Mu Yao Guo"'
Autor:
Yanling He, Kaimin Shih, Fangzhou Liu, Aleksandra B. Djurišić, Hangkong Li, Wai Kin Chan, Alan Man Ching Ng, Yu Hang Leung, Mu Yao Guo
Publikováno v:
The Journal of Physical Chemistry C. 121:24060-24068
We demonstrate that annealing at 850 °C in the presence of Cu universally results in robust antibacterial activity under ambient illumination for TiO2 nanoparticles, different from those annealed in a quartz crucible without metal or in the presence
Transmission electron microscopy artifacts in characterization of the nanomaterial-cell interactions
Autor:
Frederick C. Leung, Natalie Degger, Mu Yao Guo, Yu Hang Leung, Aleksandra B. Djurišić, Angel P. Y. Ma, Alan Man Ching Ng
Publikováno v:
Applied Microbiology and Biotechnology. 101:5469-5479
We investigated transmission electron microscopy artifacts obtained using standard sample preparation protocols applied to the investigation of Escherichia coli cells exposed to common nanomaterials, such as TiO2, Ag, ZnO, and MgO. While the common p
Autor:
Yu Hang Leung, Wai Kin Chan, Kenneth M.Y. Leung, Frederick C. Leung, Stella W.Y. Wong, Charis M.N. Chan, Hung Kay Lee, Mu Yao Guo, Angel P. Y. Ma, Mana M.N. Yung, Alan Man Ching Ng, Aleksandra B. Djurišić
Publikováno v:
Journal of Photochemistry and Photobiology B: Biology. 151:17-24
A number of different nanomaterials produced and incorporated into various products are rising. However, their environmental hazards are frequently unknown. Here we consider three different metal oxide compounds (SnO2, In2O3, and Al2O3), which have n
Autor:
Fangzhou Liu, Wai Kin Chan, Albert A. Voskanyan, Aleksandra B. Djurišić, Jenkin Tsui, Kwong-Yu Chan, Alan Man Ching Ng, Mu Yao Guo
Publikováno v:
Materials Chemistry and Physics. 153:243-247
Indium oxide cubes have been prepared by hydrothermal synthesis. The cubes exhibited significantly better catalytic activity towards CO oxidation compared to commercial In 2 O 3 powder and nanoparticles. With the addition of a metal co-catalyst, the
Autor:
Jenkin Tsui, Changzhong Liao, Albert A. Voskanyan, Kwong-Yu Chan, Wai Kin Chan, Fangzhou Liu, Mu Yao Guo, Charles Surya, Aleksandra B. Djurišić, Kaimin Shih, Alan Man Ching Ng
Publikováno v:
Journal of Materials Chemistry A. 3:3627-3632
Hydrothermally synthesized CuxO exhibited improved performance for CO oxidation compared to the hydrothermally synthesized Cu2O, as well as commercial CuO nanoparticles. Hydrothermally synthesized CuxO predominantly consists of CuO, but it also conta
Autor:
Zhiyong Shen, David Lee Phillips, Yip Hang Ng, Wai Kin Chan, Patrick K. H. Lee, Frederick C. Leung, Xiaoying Xu, Li Hong Yu, Alan Man Ching Ng, Charis M.N. Chan, Lee A. Gethings, Angel P. Y. Ma, Mu Yao Guo, Aleksandra B. Djurišić, Yu Hang Leung, Mabel Ting Wong
Publikováno v:
Small. 10:1171-1183
The toxicity of metal oxide nanomaterials and their antimicrobial activity is attracting increasing attention. Among these materials, MgO is particularly interesting as a low cost, environmentally-friendly material. The toxicity of MgO, similar to ot
Autor:
Mu Yao Guo, Fangzhou Liu, Alan Man Ching Ng, Yu Hang Leung, Wai Kin Chan, Aleksandra B. Djurišić
Publikováno v:
Applied Surface Science. 283:914-923
Eight commercial ZnO samples were investigated, as-received and after annealing in the flow of oxygen or forming gas. We found that ZnO nanoparticles with higher photoluminescence (PL) intensity (fewer nonradiative defects) exhibited a high photocata
Autor:
Fangzhou Liu, Aleksandra B. Djurišić, Mu Yao Guo, Yu Hang Leung, Alan Man Ching Ng, Wai Kin Chan
Publikováno v:
Current Applied Physics. 13:1280-1287
We investigated the influence of the crystal structure of TiO2 and the use of different TiO2 precursors on the properties and photocatalytic activity of carbon nanotube (CNTs)–titania composites. We found that the crystal structure and properties o
Publikováno v:
Surface and Coatings Technology. 228:S568-S573
Electrospun PLLA fiber films were coated with chitosan and heparin by electrostatic self-assembly as scaffolds of vascular tissue engineering. Analyses on morphology and composition of the coated fibers were investigated by scanning electron microsco
Autor:
Xu Hu, Yu Hang Leung, Aleksandra B. Djurišić, Mu Yao Guo, Frederick Chi Chung Leung, Charis M.N. Chan, S. Y. Tong, Wai Kin Chan, Alan Man Ching Ng
Publikováno v:
Applied Microbiology and Biotechnology. 97:5565-5573
We studied antibacterial and photocatalytic activity of anatase TiO2 and ZnO in phosphate buffer and saline solution. We found that the different anions in the suspension medium (chloride and phosphate) significantly affected the following suspension