Dr. Abhishek Kumar Bhardwaj is working as an Assistant Professor at Amity School of Life Sciences, Department of Environmental Science, Amity University, India. He obtained his PhD from the Central University of Allahabad, Prayagraj, India, in the field of environmental nanotechnology. He has also done Post-doctoral research at the Department of Environmental Science, VBS Purvanchal University, Jaunpur (India). Currently, He is actively involved in the teaching and guidance of undergraduate, MSc, and PhD students. Dr. Bhardwaj's research interests encompass a wide array of topics, including green synthesis of nanomaterials for water purification, bio-sensing, nano-based device fabrication, water treatment, diatom cultivation, mushroom cultivation, phytoremediation, and waste management. His contributions to the field are well-recognized, as he has published over 30 research papers in prestigious journals, including Elsevier, Springer, American Chemical Society, American Institute of Physics, MDPI, and Frontier, among others. Furthermore, Dr. Bhardwaj serves as a respected reviewer for esteemed journals such as Journals of Cleaner Production, Journals of Environmental Pollution, Bioresource Technology, Journals of Nanoparticle Research, Scientific Reports, and more. He has also edited two books in collaboration with Elsevier and Springer. His dedication to academia and research has made him a valuable asset to the scientific community and a significant influence in the field of environmental science and nanotechnology.