Volume 56, Issue 7 pp. 417-431
RESEARCH ARTICLE

Molecular interaction of nonsteroidal anti-inflammatory prodrug nepafenac with ionic surfactants

Arshi Abbas

Arshi Abbas

Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan

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Syed Salman Shafqat

Corresponding Author

Syed Salman Shafqat

Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan

Correspondence

Syed Salman Shafqat, Department of Chemistry, Division of Science and Technology, University of Education, Lahore 54770, Pakistan.

Email: [email protected]

Muhammad Nadeem Zafar, Department of Chemistry, University of Gujrat, Gujrat 50700, Pakistan.

Email: [email protected] and [email protected]

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Muhammad Faizan Nazar

Corresponding Author

Muhammad Faizan Nazar

Department of Chemistry, University of Education, Lahore, Multan Campus, Multan, Pakistan

Correspondence

Syed Salman Shafqat, Department of Chemistry, Division of Science and Technology, University of Education, Lahore 54770, Pakistan.

Email: [email protected]

Muhammad Nadeem Zafar, Department of Chemistry, University of Gujrat, Gujrat 50700, Pakistan.

Email: [email protected] and [email protected]

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Hafeez Ullah Khan

Hafeez Ullah Khan

Department of Pharmaceutics, College of Pharmacy, University of Sargodha, Sargodha, Pakistan

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Asma Mukhtar

Asma Mukhtar

School of Chemistry, University of the Punjab, Lahore, Pakistan

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Muhammad Tayyab

Muhammad Tayyab

Key Laboratory for Advanced Materials, Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, China

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Asad Syed

Asad Syed

Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia

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Muhammad Nadeem Zafar

Corresponding Author

Muhammad Nadeem Zafar

Department of Chemistry, University of Gujrat, Gujrat, Pakistan

Correspondence

Syed Salman Shafqat, Department of Chemistry, Division of Science and Technology, University of Education, Lahore 54770, Pakistan.

Email: [email protected]

Muhammad Nadeem Zafar, Department of Chemistry, University of Gujrat, Gujrat 50700, Pakistan.

Email: [email protected] and [email protected]

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Syeda Amna Masood

Syeda Amna Masood

Department of Pharmaceutics, College of Pharmacy, University of Sargodha, Sargodha, Pakistan

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Kashif Kamran

Kashif Kamran

Department of Physics, University of Agriculture, Faisalabad, Pakistan

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First published: 15 March 2024

Abstract

Drug-surfactant interaction increases the solubility of poorly water-soluble drugs and design better pharmaceutical formulations. The degree of interaction of nepafenac (NP), a nonsteroidal anti-inflammatory prodrug was studied with ionic surfactant molecules such as cationic surfactant cetrytrimethyl ammonium bromide (CTAB) and anionic surfactant sodium dodecyl sulphate (SDS) in an aqueous medium at room temperature. NP made mixed micelles with CTAB and SDS. To investigate the influence of interactions, conductivity measurements, UV–visible spectroscopy, and fluorescence measurements were recorded. The quantification of NP–surfactant interactions was investigated using various mathematical models. The CMC values determined from conductivity measurements of pure surfactants were 0.96 mM for CTAB and 8.14 mM for SDS near to their literature values. At different mole fractions of NP in UV measurements, binding constants from lnKb were found 0.025 and 0.123 and number of NP molecules per micelles (n) 67, 46 for CTAB and SDS, respectively. The mixed micelles of NP–CTAB and NP–SDS revealed that CTAB has a strong interaction with NP than SDS. The Benesi–Hildebrand relationship, Stern–Volmer and Kawamura replica for the partition coefficient were used to confirm the findings. We are confident that the host–guest interaction mechanism can contribute to a better understanding of molecular recognition in the phospholipid membrane model.

CONFLICT OF INTEREST STATEMENT

The authors declare no conflicts of interest.

DATA AVAILABILITY STATEMENT

Data sharing is not applicable to this article as no new data were created or analyzed in this study.

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