The optical sensor for "tea catechins" was built by immobilizing 2,2'-(1,4-phenylenedivinylene)bis-8-hydroxyquinoline (PBHQ) on TiO₂ nanoparticles (NPs). The sensor worked by "indophenol blue" dye formation on PBHQ-immobilized TiO₂ NPs as a result of p-aminophenol (PAP) autoxidation with dissolved O₂ at pH 10. Among quercetin, rutin, naringenin, naringin, gallic acid, caffeic acid, ferulic acid...

Rapidly progressive glomerulonephritis is the most aggressive form of glomerulonephritis with the worst prognosis. The current unspecific immunosuppressive therapy with corticosteroids and cytotoxic agents is often complicated by severe side effects. Peng and colleagues studied the therapeutic potential of the green tea component (-)-epigallocatechin-3-gallate (EGCG) in a murine model of immune...