Open Access Article
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Expression of concern: Evaluating the biological characteristics of targeted ZIF-8-encapsulated individual and combined drug systems for enhanced in vivo toxicity mitigation using folic acid ligands
Noor S. Sadeq*ab,
Mas Jaffri Masarudincd,
Mohd Basyaruddin Abdul Rahmanef,
Suet Lin Chiafg,
Syahida Ahmadh and
Haslina Ahmad*af
aDepartment of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor, Malaysia. E-mail: haslina_ahmad@upm.edu.my; noor.s.sadeq@uotechnology.edu.iq
bMedical & Industrial Materials Branch, Applied Science Department, University of Technology, Baghdad, Iraq
cDepartment of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
dNanomaterials Synthesis and Characterisation Laboratory, Institute of Nanoscience and Nanotechnology, Universiti Putra Malaysia, Selangor, Malaysia
eIntegrated Chemical BioPhysics Research, Faculty of Science, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
fUPM-MAKNA Cancer Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
gDepartment of Microbiology, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor, Malaysia
hDepartment of Biochemistry, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, UPM, 43400 Serdang, Selangor, Malaysia
First published on 10th April 2026
Abstract
Expression of concern for ‘Evaluating the biological characteristics of targeted ZIF-8-encapsulated individual and combined drug systems for enhanced in vivo toxicity mitigation using folic acid ligands’ by Noor S. Sadeq et al., RSC Adv., 2026, 16, 1912–1931, https://doi.org/10.1039/D5RA07756G.
The Royal Society of Chemistry is publishing this expression of concern in order to alert readers that concerns have been raised regarding the interpretation of the FTIR data in Fig. 1 and the reliability of the survival rate data in Fig. 8.
An update will be provided as soon as possible.
Laura Fisher
2nd April 2026
Executive Editor, RSC Advances
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