Abstract Tamarind nut powder (TNP) from kitchen waste of tamarind nuts was modified with in situ generated copper nanoparticles (CuNPs) using hydrothermal method. The modified TNP had spherical CuNPs with an average size of 84 nm. The thermal stability of the modified TNP was lower than that of the TNP due to the catalytic activity of the in situ generated CuNPs in lowering the thermal stability. Further, it exhibited significant antibacterial activity against both the Gram negative and Gram positive bacteria and hence can be used as low-cost filler to prepare antibacterial hybrid polymer nanocomposites for packaging and medical applications.

中文翻译：

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一步水热法制备原位铜纳米颗粒罗望子粉的制备及表征

摘要 采用水热法对原位生成的纳米铜（CuNPs）改性罗望子坚果厨余中的罗望子坚果粉（TNP）。修饰的 TNP 具有平均尺寸为 84 nm 的球形 CuNP。由于原位生成的CuNPs在降低热稳定性方面的催化活性，改性TNP的热稳定性低于TNP。此外，它对革兰氏阴性菌和革兰氏阳性菌均表现出显着的抗菌活性，因此可用作低成本填料来制备用于包装和医疗应用的抗菌杂化聚合物纳米复合材料。