| Popis: |
Technological development in scaling devices may lead to novel applications, including those that are important for environmental analysis and protection. Pollution of potable water with heavy metals is a serious environmental problem that directly affects global sustainability. The non-biodegradable nature of heavy metals such as arsenic (As), lead (Pb), cadmium (Cd), chromium (Cr), and mercury (Hg) makes them highly toxic and hazardous to human health and the environment. Researchers undertaking efforts to develop simple, stable, sensitive, and label-free portable sensors for monitoring heavy metals in the environment. Nanomaterials and nanostructure- based electrochemical sensors have led to substantial improvement in the performance of sensing device in terms of sensitivity, selectivity, multiplexed detection capability, and portability. In this chapter, we discuss recent achievements in electrochemical sensing of heavy metals using various nanostructured electrodes modified with organic and inorganic materials, metals, metal oxides, thin films, microspheres, biomaterials, and nanoparticles. |
