氧释放型单宁酸修饰过氧化钙纳米颗粒的简易制备

Park Ji Sun, Song Yeong Jun, Lim Yong Geun, Park Kyeongsoon

Department of Systems Biotechnology, Chung-Ang University, Anseong, Gyeonggi 17546, Korea.

Materials (Basel). 2020 Sep 1;13(17):3864. doi: 10.3390/ma13173864.

This study reports a new approach for the facile fabrication of calcium peroxide (CaO) nanoparticles using tannic acid (TA) as the coordinate bridge between calcium ions. Tannylated-CaO (TA/CaO) nanoparticles were prepared by reacting calcium chloride (CaCl) with hydrogen peroxide (HO) in ethanol containing ammonia and different amounts of TA (10, 25, and 50 mg). The prepared TA/CaO aggregates consisted of nanoparticles 25-31 nm in size. The nanoparticles prepared using 10 mg of TA in the precursor solution exhibited the highest efficiency for oxygen generation. Moreover, the oxygen generation from TA (10 mg)/CaO nanoparticles was higher in an acidic environment.

本研究报道了一种以单宁酸（TA）作为钙离子间配位桥简便制备过氧化钙（CaO₂）纳米颗粒的新方法。通过氯化钙（CaCl₂）与过氧化氢（H₂O₂）在含氨及不同量TA（10、25和50 mg）的乙醇中反应制备了单宁化CaO₂（TA/CaO₂）纳米颗粒。制备的TA/CaO₂聚集体由尺寸为25 - 31 nm的纳米颗粒组成。在前驱体溶液中使用10 mg TA制备的纳米颗粒表现出最高的产氧效率。此外，在酸性环境中，TA（10 mg）/CaO₂纳米颗粒的产氧量更高。