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ArticlePharmaceutical nanotechnology2025

Soluplus-Stabilized Nimodipine-Entrapped Spanlastic Formulations Prepared with Edge Activator (Tween20): Comparative Physicochemical Evaluation.

Hussein K Alkufi, Hanan J Kassab

Abstract readComparative Study
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Article in Pharmaceutical nanotechnology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

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3citing papers in PubMed
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3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Response Surface Optimization, Fabrication andPharmaceutical nanotechnology · 2025
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4 · The record

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5 · Who and what money

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2 authors.

Hussein K AlkufiDepartment of Pharmacognosy, College of Pharmacy, University of Thi-Qar, Nasiriyah, 64001, Iraq.ORCID 0000-0001-6977-6737
Hanan J KassabDepartment of Pharmaceutics, College of Pharmacy, University of Baghdad, Baghdad, Iraq.ORCID 0000-0001-9590-339X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNimodipine (ND) is a vasodilator drug that is used for acute subarachnoid hemorrhage. It has a predominant hydrophobic property, causing low solubility and low bioavailability. Spanlastics are elastic nanovesicular systems based on non-ionic surfactants and edge activators as major components. The goal of this work is to formulate ND as spanlastic nanovesicles to improve the drug's bioavailability.

methodsSpanlastic formulations containing ND were prepared by using the ethanol injection method. The composition of the ND formulation includes Span60 as a nonionic surfactant and Tween 20 as edge activators in different ratios. Stabilizers like Soluplus (SP) are used in some formulations and then compared with other formulations without that stabilizer. The evaluation study involved Vesicle Size (VS), PolyDispersity Index (PDI), and Entrapment Efficiency (%EE). Then, the optimized formula was subjected to an

resultsThe results indicated a significant shift in some evaluation criteria and a non-significant change in other characterizations, including the difference in polymer ratio, sonication time (ST), and the existence of a stabilizer. The best formula, F27, was found to have VS, PDI, %EE, and zeta potential of 125.7±0.29 nm, 0.4744±0.002, and 85.43±0.17% and -20.01 ± 0.89 mV, respectively. The photomicrographs of the prepared spanlastic revealed a more uniform and spherical spanlastic, indicating a greater capacity for continuous release. With the addition of Soluplus, the formula became more stable in one month and had a higher deformability index. DISCUSSION: A significant shift was observed in both VS and PDI. As the stabilizer concentration increases, VS and PDI will decrease. The non-significant shift was noted in the %EE with the presence of a stabilizer. Soluplus has the ability to spontaneously self-assemble into spherical particles. Additionally, PEG 6000, as a component of Soluplus's structure, has a tendency to form strong or tightly bound bilayers and prevent aggregation and formulation of large vesicles.

conclusionThis study explains the accessibility of the formulation of ND as spanlastic nanovesicles by using the ethanol injection method. This spanlastic formulation contains non-ionic surfactants and edge activators (Span 40 and Tween 20) in varying ratios. To get a stable formula, Soluplus is added to prevent the development of crystals and agglomeration.

Indexed as

NimodipinePolyethylene GlycolsPolysorbatesPolyvinylsVasodilator AgentsBiological AvailabilityChemistry, PharmaceuticalDrug LiberationDrug StabilityExcipientsParticle SizeSolubilitySurface-Active AgentsExcipientsNimodipinePolyethylene GlycolsPolysorbatespolyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymerPolyvinylsSurface-Active AgentsVasodilator AgentsComparative assessmentdeformability indexdesign researchnimodipinesoluplusspanlastic nanovesicle

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.