Abstract
Marine cyanobacteria Lyngbya Majuscula supported manganese dioxide-based novel green nanoparticle synthesised by simple precipitation method. The combination of microscopic and spectroscopic techniques we are using to characterise the synthesised Lyngbya Majuscula with manganese nanoparticles (LmMnO2NPs). The preparation of manganese dioxide nanoparticles is an entirely eco-friendly green synthesis method. The existence of biomolecule-based metal oxides was confirmed using Fourier-transform infrared (FTIR) spectroscopy. The XRD pattern confirms a crystalline nature and polydispersity. The optical transmission 269 nm using commonly used UV spectra and compute the optical band gap values of the material to be approximately 3.71 eV. The photodegradation study reveals manganese dioxide nanoparticles under LED light to 86% degradation within the 150 min of reaction. The standard volume of the synthesised manganese dioxide nanoparticles range was 115.8, and the DLS study confirms the 0.375 polydispersity index value. The green synthesised manganese dioxide nanoparticles obtained from the blue-green algae extract of Lyngbya Majuscula revealed potent antimicrobial activity Pseudomonas aeruginosa, Micrococcus luteus, Aspergillus niger, Staphylococcus aureus, Escherichia coli, and Trichoderma viride. In addition, the biosynthesised manganese dioxide nanoparticles may lead to better activity against the pathogenic microorganisms by the agar well diffusion method.
Studies on the Efficient Dual Performance of Lyngbya Majuscula Extract With Manganese Dioxide Nanoparticles in Photodegradation and Antimicrobial Activity
