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【答案】应助回帖
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phu_grassman: 金币+5, hah, diligent boy. 2013-03-02 08:51:50
lize886622: 金币+100, 翻译EPI+1, ★★★很有帮助 2013-03-04 09:45:11
Layer by layer self-assembly (LbL) is an important film preparation technique. It has lots of advantages such as the diversity of assembly primitives and driving force, the simple operation, and possible preparation on non-planar plate. Hence it is of great applications in field of membrane separation, catalysis, biosensors, and anti-infective. Especially, more and more attention has been paid to its potential application in biomedical materials with antibacterial multilayer film resistance to infection.
In this paper, Gadolinium-norfloxacin (Gd-NFLX) was combined with some other materials by alternately deposition to prepare the antibacterial multilayered films and their properties were studied. These materials include the tungsten phosphate with dawson structure (P2W18), vanadium replaced phosphorus tungstate with dawson structure (P2W17V), vanadium substituted phosphortungstate with dawson structure (P2W16V2), the copper modified antimony tungstate with sandwich structure (SbW9Cu3), the copper modified bismuth tungstate with sandwich structure (BiW9Cu3), The specific contents are as follows:
(2) P2W17V/Gd-NFLX multilayers has been prepared by self-assembly technique. The antimicrobial effect, the electrochemical and fluorescence properties, surface morphology, and membrane stability of the layers has been systematically investigated by tracking the growth process of the film using UV technique. It reveals that the film is of great transparency and smoothness, while presents excellent electrochemical performance and antimicrobial performance. It could do lasting sterilization against Escherichia coli, and the sterilization rate is up to 99%. Moreover, such film is very stable within the temperature range of 0 ~ 100 ℃, but the Gd-NFLX was quenched by P2W17V in this film.
看没人帮你，你就将就吧，仅供参考。 |
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