A Reproducible sol-gel synthesis of magnetic-coated silica nanoparticles for reliable SARS-CoV-2 RNA extractionGrace Tjungirai Sulungbudi, Muflikhah, Ahadi Damar Prasetya, Mujamilah, Andon Insani, Wildan Zakiah Lubis and Uus SaepullohBIO Web Conf., 226 (2026) 03003DOI: https://doi.org/10.1051/bioconf/202622603003