Direct evidence of singlet molecular oxygen [O2 (1Δg)] production from UVA excited 6-thioguanine - Lopes, André Luiz; Prado, Fernanda Manso; Junqueira, Helena Couto; Medeiros, Marisa Helena Gennari de; Ronsein, Graziella Eliza; Cadet, Jean; Di Mascio, Paolo (Photochemistry and Photobiology, 2025)