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CuO-Rice Starch Nanocomposites: Synthesis, Characterization and Antibacterial Properties
Ist Teil von
Asian journal of chemistry, 2023-05, Vol.35 (5), p.1169-1177
Erscheinungsjahr
2023
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
In current study, the copper oxide-rice starch nanocomposites has been synthesized from the different
salts of copper and rice starch. The synthesized nanocomposites were characterized by FT-IR, XRD,
SEM, TGA and DSC spectroscopic methods. The spectroscopic analysis showed that the CuO-starch
nanocomposite was formed and CuO nanoparticles (CuONPs) were uniformly dispersed in the starch
network with relatively smooth surfaces in the CuO-starch nanocomposite. The average crystalline
size of CuO-starch nanocomposites from different precursors viz. copper acetate, copper chloride and
equimolar mixture of copper acetate and copper chloride were calculated as 3.13 nm, 6.46 nm and
17.42 nm, respectively, while average particle size were 1421, 1504 and 1796 nm, respectively. The
TGA and DSC data showed that the CuO-starch nanocomposites were thermally stable. The
nanocomposites were scrutinized by antibacterial activity against two tested bacterial strain Serratia
marcescens (17.67 ± 0.90 mm) and Escherichia coli (16.3 ± 0.30). It was concluded that, CuO-starch
nanocomposites were thermally stable and exhibited significant antibacterial activity.