Alginate extracted from the marine brown algae is a massively utilized biopolymer in multiple fields such as microreactors for the fabrication of metal nanoparticles along with other polymeric and nonpolymeric materials to enhance their mechanical strength. These sodium alginate (Na-Alg)-based fabricated nanocomposites find applications in the field of catalysis and biological treatment as antibacterial/antifungal agent due to the synergistic properties of Na-Alg and fabricated metal nanoparticles (NPs). Na-Alg offers mechanical strength and nanoparticles provide high reactivity due to their small size. Sodium alginate exhibits hydroxyl and carboxylate functional groups that can easily interact with the metal nanoparticles to form composite particles. The research on the preparation of Na-Alg–based nanoparticles and nanoaggregates have been started recently but developed quickly due to their extensive applications in different fields. This review article encircles different methods of preparation of sodium alginate–based metal nanocomposites; analytical techniques reported to monitor the formation of these nanocomposites and used to characterize these nanocomposites as well as applications of these nanocomposites as catalyst, antibacterial, and antifungal agent.

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海藻酸钠基纳米复合材料的制备策略及其作为催化、抗菌和抗真菌剂的作用

从海洋褐藻中提取的海藻酸盐是一种在多个领域中大量使用的生物聚合物，例如用于制造金属纳米颗粒以及其他聚合物和非聚合物材料以提高其机械强度的微反应器。由于 Na-Alg 和制造的金属纳米粒子 (NPs) 的协同特性，这些基于海藻酸钠 (Na-Alg) 的制造纳米复合材料在催化和生物处理领域作为抗菌/抗真菌剂找到了应用。Na-Alg 提供机械强度，而纳米颗粒由于尺寸小而提供高反应性。海藻酸钠具有羟基和羧酸盐官能团，可以很容易地与金属纳米颗粒相互作用形成复合颗粒。Na-Alg 基纳米粒子和纳米聚集体的制备研究最近开始，但由于它们在不同领域的广泛应用而迅速发展。这篇综述文章涵盖了海藻酸钠基金属纳米复合材料的不同制备方法；据报道，分析技术监测这些纳米复合材料的形成并用于表征这些纳米复合材料以及这些纳米复合材料作为催化剂、抗菌剂和抗真菌剂的应用。