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Nanomaterials
Volume 15
Issue 20
10.3390/nano15201540
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Retraction of Nanomaterials 2019, 9(12), 1721.
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Retraction

RETRACTED: Sabeela et al. Reactive Mesoporous pH-Sensitive Amino-Functionalized Silica Nanoparticles for Efficient Removal of Coomassie Blue Dye. Nanomaterials 2019, 9, 1721

by
Nourah I. Sabeela
1,
Tahani M. Almutairi
2,
Hamad A. Al-Lohedan
1,
Abdelrahman O. Ezzat
1 and
Ayman M. Atta
1,*
1
Surfactants Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
2
Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
*
Author to whom correspondence should be addressed.
Nanomaterials 2025, 15(20), 1540; https://doi.org/10.3390/nano15201540
Submission received: 17 September 2025 / Accepted: 7 October 2025 / Published: 10 October 2025
Versions Notes
The journal retracts the article “Reactive Mesoporous pH-Sensitive Amino-Functionalized Silica Nanoparticles for Efficient Removal of Coomassie Blue Dye” [1], cited above.
Following publication, concerns were brought to the attention of the publisher regarding the reliability of Figure 3 presented in this article [1].
Adhering to our complaint procedure, an investigation was conducted, which revealed multiple irregularities in Figure 3. While the authors cooperated with the Editorial Office during the investigation, they were unable to satisfactorily explain the irregularities present in this image, nor provide the appropriate raw material for Editorial Board evaluation.
As a result, the Editorial Board has lost confidence in the reliability of the findings and has decided to retract the publication [1], as per MDPI’s retraction policy:
https://www.mdpi.com/ethics#_bookmark30
This retraction was approved by the Editor-in-Chief of the journal Nanomaterials.
The authors did not agree to this retraction.

Reference

  1. Sabeela, N.I.; Almutairi, T.M.; Al-Lohedan, H.A.; Ezzat, A.O.; Atta, A.M. RETRACTED: Reactive Mesoporous pH-Sensitive Amino-Functionalized Silica Nanoparticles for Efficient Removal of Coomassie Blue Dye. Nanomaterials 2019, 9, 1721. [Google Scholar] [CrossRef] [PubMed]
Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content.

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MDPI and ACS Style

Sabeela, N.I.; Almutairi, T.M.; Al-Lohedan, H.A.; Ezzat, A.O.; Atta, A.M. RETRACTED: Sabeela et al. Reactive Mesoporous pH-Sensitive Amino-Functionalized Silica Nanoparticles for Efficient Removal of Coomassie Blue Dye. Nanomaterials 2019, 9, 1721. Nanomaterials 2025, 15, 1540. https://doi.org/10.3390/nano15201540

AMA Style

Sabeela NI, Almutairi TM, Al-Lohedan HA, Ezzat AO, Atta AM. RETRACTED: Sabeela et al. Reactive Mesoporous pH-Sensitive Amino-Functionalized Silica Nanoparticles for Efficient Removal of Coomassie Blue Dye. Nanomaterials 2019, 9, 1721. Nanomaterials. 2025; 15(20):1540. https://doi.org/10.3390/nano15201540

Chicago/Turabian Style

Sabeela, Nourah I., Tahani M. Almutairi, Hamad A. Al-Lohedan, Abdelrahman O. Ezzat, and Ayman M. Atta. 2025. "RETRACTED: Sabeela et al. Reactive Mesoporous pH-Sensitive Amino-Functionalized Silica Nanoparticles for Efficient Removal of Coomassie Blue Dye. Nanomaterials 2019, 9, 1721" Nanomaterials 15, no. 20: 1540. https://doi.org/10.3390/nano15201540

APA Style

Sabeela, N. I., Almutairi, T. M., Al-Lohedan, H. A., Ezzat, A. O., & Atta, A. M. (2025). RETRACTED: Sabeela et al. Reactive Mesoporous pH-Sensitive Amino-Functionalized Silica Nanoparticles for Efficient Removal of Coomassie Blue Dye. Nanomaterials 2019, 9, 1721. Nanomaterials, 15(20), 1540. https://doi.org/10.3390/nano15201540

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