Copper oxide nanoplatelets and nanoflowers: facile synthesis and catalytic activity in oxidative degradation of methylene blue

Micro & nano letters

article

Jinyun Liao¹  Hao Li¹  Xibin Zhang¹  Dinshu Xiao¹ 

[1]Department of Chemical Engineering, Huizhou University

关键词: copper compounds;    nanofabrication;    self-assembly;    catalysis;    nanowires;    oxidation;    organic compounds;    copper oxide nanoplatelets;    copper oxide nanoflowers;    catalytic activity;    methylene blue oxidative degradation;    copper oxide nanostructures;    morphology;    physicochemical properties;    hydrothermal method;    hydrogen peroxide;    three-dimensional nanostructures;    self-assembly;    nanowires;    CuO;   

DOI  :  10.1049/mnl.2014.0199

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Objective: Acute heart failure frequently happens in critically ill patients due to myocardial injury, cardiac dysfunction, arrhythmias, and inflammatory mediators. Till now, the outcomes of studies comparing levosimendan with dobutamine for patients requiring inotropic support remain controversial and ambiguous.  The present study was aimed to compare the effects of levosimendan and dobutamine in the management of critically ill patients in ICU and establish preference of one over the other drug.Methodology: In this study 100 critically ill patients with clinical diagnosis of heart failure or impending heart failure due to any cause of age between 21 years to 80 years (left ventricular ejection fraction 0.05) in both the groups. Heart rate decreased significantly in both the groups at 24 h and 5th day, although it remained higher in Group-1 patients receiving levosimendan. Systolic blood pressure and Cardiac Index (CI) increased significantly in both the groups but was more in Group-1 patients receiving levosimendan at all times. Cardiac output increased significantly in Group-1 pts whereas in Group-2, after an initial increase for first 48 hrs ultimately decrease in cardiac output was observed on 5th day. 7 Day survival was more (56%) in Group-1 patients as compared to 52% in Group-2 patients.Conclusion: Based upon the results of our study, we conclude that levosimendan shows better results than dobutamine in maintaining hemodynamic stability in critically ill patients. Larger, multi-center studies may have to be done for confirming or discrediting our results.

【 授权许可】

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