Due to the coronavirus situation around the world, safe and contactless home delivery services have become substantial concerns for the people while they are forced to stay at home. In this context, we have proposed a prototype robot that can be very helpful to reduce the risk of infectious disease transmission in the product delivery system during the extreme strain on healthcare and hygiene. The design and development of a cost effective autonomous mobile robot prototype have been presented that can deliver packages safely to a desired destination using Global Positioning System (GPS). The robot ensures a secure and human-contactless delivery by using a password protected container to carry the delivery package. The four wheel drive robot can successfully navigate to a preset location by receiving GPS coordinates from satellites and correcting its direction using a digital compass. After the robot arrives at its destination, it waits for the customer to unlock the container. The customer will have to use a password upon delivery to unlock the container and retrieve the ordered product. This password can be sent to the customer with the order confirmation message. After completing the delivery, the robot can autonomously return to its starting location. Heading angle accuracy test and trajectory completion accuracy test have been performed to ascertain the accuracy of the robot. Alongside an infection risk-free product delivery, our robot can be an effective technological solution of the last mile problem which will reduce the last mile delivery cost significantly.

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Growing concerns about fossil fuel’s environmental impact, along with the recent breakthrough of electric vehicles, have turned research focus to energy storage solutions. Despite the fact that batteries were invented about 200 years ago, modern technologies are required to store energy in a larger grid with a high density. The electrode materials used in energy storage devices such as batteries and supercapacitors play a major role in their overall performance. A lot of materials have been explored but due to appealing electrical and electrochemical properties, MXene has received a lot of interest for energy storage devices. Because of their layered structure and high conductivity, MXenes are promising candidates for energy storage applications. Two-dimensional heterostructured materials are more advantageous than individual building blocks for batteries and supercapacitors. In this review work, we looked at different MXene based heterostructures and their electrochemical performance as electrode materials of batteries. A particular application of MXene in Lithium-ion batteries has been studied. Synthesis and characteristics of MXenes are briefly discussed here. Finally, future prospects and challenges are highlighted.