ABSTRACT
The advanced characteristics and functionality of hydrogels make them unique materials that differ from other materials. The unique properties of hydrogels like swelling, mechanical robustness, and modifiability are responsible for various applications of hydrogels in diverse fields. Research on the enhancement in the efficiency of hydrogels in their desired applications has led to forming new material with advanced characteristics. The objective of new technologies to develop the new advanced materials may simply be the innovative consolidation of established materials. These reciprocal benefits and the linked impending applications have seen a swell of attention in the past decade from multidisciplinary research groups. The inclusion of nanoparticles with hydrogel techniques has led to forming advanced materials, and the role of nanoparticles varies according to their use. In this book chapter, we highlighted the hydrogel nanocomposites with their synthesis approaches, like suspension polymerization, established nanoparticles as crosslinker, environmental green routes such as the freeze-thaw method. We also highlighted the crucial role of hydrogel and its structure for the generation of nanoparticles with different reports. The synthesis of nanocomposites with natural polymer as well as synthetic monomer is discussed. We focused on applications of nanocomposites in the fields of water remediation, drug delivery, tissue engineering, and catalysts. Nanocomposites as catalysts for the generation of hydrogen and the reduction of nitro-compound are promising materials.
