Two-dimensional nanomaterials hold the most promising future, even surpassing conventional electromagnetic interference shields of heavy and corrosion-prone metallic materials. Among the materials discussed in this review, graphene and MXene prove to be the most promising materials owing to their flexibility, affordability and numerous attractive properties. Advancement in electromagnetic interference shielding materials has been a center of interest in research since the discovery of unwanted radiations emitted from the electromagnetic waves which cause severe damage to the environment, human beings and unshielded electronic devices. This review discusses some of the most recent preparation methodologies using the most effective nanomaterials, creating electromagnetic interference shielding materials at par in performance compared to conventional shielding methods.
This study deals with the pollution impact of biomedical waste (BMW) generation due to the COVID-19 pandemic at both the global and national levels. This discussion is important in light of clear scientific evidence that, apart from the airborne transmission of the disease, the virus also survives on different surfaces and poses the risk of infection. Moreover, an investigation is conducted on BMW generation in tons/day in India during the COVID-19 period, with implications for future projection. Additionally, a pioneering study was conducted to estimate the usage of facemasks during the COVID-19 pandemic in India. This paper also provides a feasible solution, by adopting a modern perspective, towards managing BMW generated in the context of SARS-CoV-2 at isolation wards and crematoriums. Strategical approaches have been suggested for segregating and safely disposing BMW. The latest availability of disposal facilities is discussed based on source data provided by the Central Pollution Control Board (CPCB), India. Among the many disposal methods, incineration technologies are examined in depth. The impact of existing incineration technology on the environment and human health has been extensively studied. This study suggests strategies for controlling BMW generation during the COVID-19 pandemic.
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