Eco-friendly biosynthesis of copper oxide nanoparticles using black tea extract: multifaceted biological activities and potential as drug carriers. - Yalçın, M. Serkan; Çevik, Pınar K.; Yetkin, Derya; Alhroub, Farah; Geçgel, Cihan; Özdemir, Sadin; Yabalak, Erdal (International Journal of Environmental Health Research, 2026)