ArticleJournal of drug delivery science and technology2023
Development of favipiravir loaded PLGA nanoparticles entrapped in in-situ gel for treatment of Covid-19 via nasal route.
Article in Journal of drug delivery science and technology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 32 citations in OpenAlex.
- Strategic Preparedness of Broad-Spectrum Antivirals for Rapid Response Towards Next Pandemics.Small science · 2026Article
- Lactoferrin-modified PLGA nanoparticles for pregabalin: development, characterization, in vitro targeting and pharmacodynamic evaluation.Drug delivery and translational research · 2025Article
- Gels as Promising Delivery Systems: Physicochemical Property Characterization and Recent Applications.Pharmaceutics · 2025Review
- PLGA-Based Strategies for Intranasal and Pulmonary Applications.Pharmaceutics · 2025Review
- Preparation, and ex vivo and in vivo Characterization of Favipiravir-Loaded Aspasomes and Niosomes for Nose-to-Brain Administration.International journal of nanomedicine · 2025Article
- Nanoparticles incorporated hydrogels for delivery of antimicrobial agents: developments and trends.RSC advances · 2024Review
- The Application of Biomaterials for the Vaccine, Treatment, and Detection of SARS-CoV-2.ACS omega · 2024Review
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In 2019 the emergence of SARS-COV-2 caused pandemic situation worldwide and claimed ∼6.4 M lives (WHO 2022). Favipiravir (FAV) is recommended as a therapy for Covid-19 which belongs to BCS class III with a short half-life of 2-5.5h. Thus, the objective of current study was the development of favipiravir loaded PLGA nanoparticles (NPs) by box-behnken design. Moreover, these NPs were entrapped in thermosensitive gel to increase the permeation through nasal route. The nanoparticles exhibit particle size of 175.6 ± 2 nm with >70 ± 0.5 %EE. NPs showed PDI (0.130) and zeta potential (-17.1 mV) suggesting homogeneity and stability of NPs. DSC, XRD, and FTIR studies concluded absence of any interaction of FAV and the excipients. SEM and AFM studies demonstrated spherical morphology of NPs with smooth surface. The NPs entrapped in-situ gel showed clarity and pH 5.5-6.1. The gelation temperature of NPs dispersed in-situ gel was found in the range of 35 °C -37 °C. The gel has viscosity in range of 34592-4568 cps. The texture analysis profile of gel showed good gelling properties. Dissolution study suggested a sustained release of FAV from NPs (24h) and NPs dispersed gel (32h) as compared to FAV solution (4h). The gel showed good mucoadhesion properties (9373.9 dyne/cm
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