Microwave-assisted green synthesis of silver nanoparticles using Mitragyna parvifolia bark extract and their biological activities: an economical and environment-friendly approach oleh Apoorva Dwivedi, Sinchan Das, Vaishali Tiwari, Varsha Yadav, Sunil K. Jain, Vivekananda Mandal, Souvik Mukherjee, Swaha Satpathy, Debadatta Mohapatra, Alakh N. Sahu, Mantra Prasad Satpathy, Sanjay Kumar Mehta, Sneha Singh, Manoj Goyal, Mohsin Kazi, Muhammad Delwar Hussain, Arjun Patra