Correction to: Development of cysteine‑doped MnO2 quantum dots for spectrofluorimetric estimation of copper: applications in different matrices

Affiliations

• ¹ Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt.
• ² Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, 42511, Egypt.
• ³ Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman.
• ⁴ Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shibin‑Elkom, 32511, Egypt.
• ⁵ Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman. s.eldeeb@tu-bs.de.
• ⁶ Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106, Braunschweig, Germany. s.eldeeb@tu-bs.de.