Boosting the Electrochemical Detection Response Toward Hydroxychloroquine via Tungsten Trioxide Nanorods/Nitrogen-Doped Carbon Nanofiber Nanocomposite

The overusage of hydroxychloroquine (HQ) amidst the outbreak of coronavirus disease has contributed to increased fatalities concerning HQ poisoning. Hence, there is an utmost requirement to develop accurate and onsite methodologies for monitoring HQ in biological samples and water bodies. Metal-oxide-decorated carbon nanomaterials present excellent electrocatalytic properties, contributing to improved sensor responses. This study introduces tungsten trioxide nanorods/ nitrogen-doped carbon nanofiber (WO3/N-CNF) nanocomposite, capable of detecting HQ electrochemically. The conjunction of WO ;with N-CNF offers accelerated charge transfer kinetics with an abundance of surface-active sites that benefit the sensing mechanism. Furthermore, synergistic effects arising from the nanocomposite augment the conductivity and promote faster ion diffusion. The WO3/N-CNF-based electrochemical sensor deliver high performance in the working concentration range of 0.007-480 mu M and provides a detection limit of 2.0 nM for HQ The fabricated sensor has excellent operational stability and reproducibility and is also able to show a superb selectivity toward HQin comparison to various interfering compounds. This indicates that the designed WO3/N-CN.F nanocomposite can be used as a potential electrocatalyst for the real-time monitoring of HQ.

E-COMMERCE WEBSITE ON COVID ESSENTIALS

Electronic Commerce is the process of doing business through computer networks. He/she sitting on the chair in front of a computer can access all the facilities of the Internet to sell or buy the products. Unlike traditional commerce that is carried out physically with an effort of a person to go & get products, e-commerce has made it easier for a human to reduce physical work and to save time. This was started in the early 1990s and it had taken a great effect in the world of computers. the growth of e-commerce is security. E-commerce is facing many challenges & still there is a lot of security for this. The main advantage of e-commerce over traditional commerce is the user can browse online shops, compare prices, and order merchandise sitting at home on their PC. For increasing the use of e-commerce in developing countries the Business to Business ecommerce is implemented for improving access to global markets for firms in developing countries. For a developing country, advancement in the field of ecommerce is essential. The research strategy shows the importance of e-commerce in developing countries for business applications. © 2022 University of Stockholm. All rights reserved.