During the last few decades, there has been evident growth in the development and fabrication of nano structured materials due to their wide application for different fields of material science and engineering. Among all these materials, natural polymer-based hydrogels such as polysaccharides, proteins, lipids etc. are gaining significant attention in the field of nanotechnology. Among them Chitosan hydrogels are widely used. These are cross-linked hydrophilic polymers which facilitate the uptake of significant quantity of water without being dissolved in water. They are hydrophilic in nature antimicrobial mainly need for fabrication of novel biomaterial These are chemically and physically firm, soft, stretchy polymeric network, reusable and multi-functional in nature. Chitosan has extensive properties including electrical, photo thermal characteristics, catalysis, anti-microbial characteristics, drug degradation, pollutants removal; bio-sensing etc. make it ultimate for “smart” nanostructure material. Recently, advance in the applications of Chitosan has made it an appreciable research material among the researchers. In this review we will focus on properties and applications of Chitosan as smart material in sensor configurations in various fields like clinical and environmental analysis.

在过去的几十年中，由于纳米结构材料在材料科学和工程学的不同领域中的广泛应用，纳米结构材料的开发和制造有了明显的增长。在所有这些材料中，基于天然聚合物的水凝胶，例如多糖，蛋白质，脂质等，在纳米技术领域受到了广泛关注。其中壳聚糖水凝胶被广泛使用。这些是交联的亲水性聚合物，其有助于吸收大量水而不溶于水。它们本质上是亲水性的，抗菌是制造新型生物材料的主要需求。这些化学和物理上牢固，柔软，可拉伸的聚合物网络，本质上可重复使用和多功能。壳聚糖具有广泛的性能，包括电，光热特性，催化，抗微生物特性，药物降解，污染物去除；生物传感等使它成为“智能”纳米结构材料的终极选择。最近，壳聚糖的应用进展使其成为研究人员中可观的研究材料。在本文中，我们将重点研究壳聚糖作为智能材料在临床和环境分析等各个领域中的传感器配置的性能和应用。