From Nature to Pharmacy: Advances in Bio-Based Pharmaceutical Formulations

A special issue of Pharmaceutics (ISSN 1999-4923). This special issue belongs to the section "Biopharmaceutics".

Deadline for manuscript submissions: 28 February 2026 | Viewed by 1483

Special Issue Editors


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Guest Editor
Department of Pharmaceutical Technology, Medical University of Białystok, Mickiewicza 2c, 15222 Białystok, Poland
Interests: spray drying; alginates; natural polymers; microparticles; drug dosage formulations
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Guest Editor
Department of Drug Technology and Social Pharmacy, Faculty of Pharmacy, Medical Academy, Lithuanian University of Health Sciences, Sukileliu pr. 13, LT-50161 Kaunas, Lithuania
Interests: natural ingredients; pharmaceutical forms; microencapsulation; 3D printing
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue, "From Nature to Pharmacy: Advances in Bio-Based Pharmaceutical Formulations" focuses on the latest progress in the development and optimization of pharmaceutical systems derived from natural sources. Natural products—including plant extracts, marine compounds, microbial metabolites, and mineral substances—continue to play a crucial role in drug discovery and formulation science.

We invite contributions that explore innovative formulation techniques, novel delivery platforms, improvements in solubility and bioavailability, stability enhancements, and targeted delivery of natural bioactives. Research addressing regulatory aspects, safety evaluation, and quality control of natural product-based formulations is also welcome.

This Special Issue aims to bring together interdisciplinary studies that connect traditional knowledge with modern pharmaceutical technologies, contributing to safer, more effective, and scientifically validated natural therapies.

Natural products have long been a vital source of bioactive compounds for pharmaceutical development. In recent years, advances in extraction technologies, drug delivery systems, and nanotechnology have significantly enhanced the efficacy, stability, and bioavailability of natural product-based formulations. This Special Issue’s goal is to showcase the latest research on innovative pharmaceutical formulations derived from natural sources, including plant-based, marine, microbial, and mineral compounds. We welcome original studies and reviews on formulation strategies, pharmacokinetics, quality control, and therapeutic applications of these agents. Emphasis is placed on novel delivery systems such as nanoparticles, liposomes, hydrogels, 3D printing, and other biocompatible carriers that enhance the performance of natural products. By gathering multidisciplinary contributions, this issue seeks to highlight cutting-edge approaches that bridge traditional medicine and modern pharmaceutical sciences.

Dr. Marta Szekalska
Dr. Lauryna Pudžiuvelytė
Guest Editors

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Keywords

  • natural products
  • drug delivery systems
  • bioactive ingredients
  • nanotechnology
  • bioavailability
  • pharmaceutical formulations
  • plant-derived compounds
  • biocompatible carriers

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Published Papers (2 papers)

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Research

24 pages, 4100 KB  
Article
Comparative In Vitro Evaluation of Buccal Films, Microcapsules, and Liposomal Systems for Naringin and Citrus × paradisi L. Peel Extract: Effects of Encapsulation Strategy and Compound Origin on Release Profiles
by Jolita Stabrauskiene, Mindaugas Marksa and Jurga Bernatoniene
Pharmaceutics 2025, 17(10), 1311; https://doi.org/10.3390/pharmaceutics17101311 - 9 Oct 2025
Viewed by 419
Abstract
Background/Objectives: Citrus × paradisi Macfad., Rutaceae. peel is a rich source of naringin (NR), but its poor solubility and low bioavailability limit applications. This study aimed to improve NR delivery by comparing microencapsulation, liposomal microencapsulation, and buccal films containing either pure NR [...] Read more.
Background/Objectives: Citrus × paradisi Macfad., Rutaceae. peel is a rich source of naringin (NR), but its poor solubility and low bioavailability limit applications. This study aimed to improve NR delivery by comparing microencapsulation, liposomal microencapsulation, and buccal films containing either pure NR or grapefruit peel extract. Methods: Four spray-dried powder formulations—spray-dried NR (NS), liposomal NR (NLS), spray-dried extract (ES), and liposomal extract (ELS)—were produced using maltodextrin, β-cyclodextrin, and HPMC as wall materials. Buccal films (EP1, EP2, NP1, NP2) were prepared via solvent casting with HPMC, alginate (ALG), or polyvinyl alcohol (PVA). All samples were evaluated for solubility, moisture content, mucoadhesion, and in vitro release under simulated gastric, intestinal, and salivary conditions. Results: NR powders had the highest absolute solubility (306.42 ± 10.34 µg/mL), whereas ELS showed the lowest due to low loading. However, relative to theoretical NR content, ELS achieved the highest dissolution efficiency (55.3%), followed by NLS (42.7%), outperforming NS (5.6%) and ES (91.8%) in sustained release potential. Dual encapsulation (NLS, ELS) slowed gastric release and maintained intestinal delivery, while non-liposomal powders released rapidly. In buccal films, NP2 (NR + PVA) showed the highest release (69.97 ± 3.01 µg/mL; 40.9% efficiency) and strongest mucoadhesion (0.47 N·s). Extract-based films had lower absolute NR release but higher relative efficiency to content, likely due to co-extracted compounds enhancing wettability and matrix erosion. Conclusions: Liposomal microencapsulation improves relative dissolution efficiency and sustains intestinal release, while PVA-based buccal films enhance both release and mucoadhesion. Polymer choice and active ingredient composition are critical for optimising oral delivery of NR. These results demonstrate the potential of the proposed systems in the pharmaceutical or dietary supplement field, especially in improving the oral delivery of poorly soluble flavonoids. A graphical summary is included, visually summarising the main formulation strategies and results. Full article
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31 pages, 6995 KB  
Article
Dual-Cross-Linked Alginate Hydrogels as a Strategy to Improve the Antifungal Properties of Posaconazole
by Katarzyna Sosnowska, Marta Szekalska, Ewelina Piktel, Robert Bucki, Eliza Wolska, Iwona Misztalewska-Turkowicz, Karolina Halina Markiewicz, Agnieszka Zofia Wilczewska and Katarzyna Winnicka
Pharmaceutics 2025, 17(8), 1055; https://doi.org/10.3390/pharmaceutics17081055 - 14 Aug 2025
Viewed by 818
Abstract
Background/Objectives: Despite the continuous development of medicine, the treatment of dermatological fungal infections is difficult due to their chronic nature, recurrence, and resistance of some pathogens to standard therapies. In order to improve the effectiveness of treatment, not only are new active [...] Read more.
Background/Objectives: Despite the continuous development of medicine, the treatment of dermatological fungal infections is difficult due to their chronic nature, recurrence, and resistance of some pathogens to standard therapies. In order to improve the effectiveness of treatment, not only are new active substances with antifungal activity synthesized, but new, unconventional carriers are also developed for substances already used. Methods: Therefore, the focus of this research was to evaluate the possibility of using a combination of two cross-linking techniques for sodium alginate ionic cross-linking with Zn2+ ions and electrostatic interaction with ε-poly-L-lysine. The pharmaceutical properties, antifungal activity against Candida strains, and compatibility with human fibroblasts of the designed hydrogels were assessed. Results: It was shown that the double cross-linking process increased the viscosity of the developed hydrogels, improved bioadhesive properties to hairless mice skin, and provided an extended release profile of the active substance. In addition, obtained formulations were characterized by improved antifungal effect against C. albicans, C. krusei, and C. parapsilosis. Prepared hydrogels expressed biocompatibility with human fibroblasts. Conclusions: Dual-cross-linked alginate hydrogels are a promising dermatological formulation that might improve the efficacy of posaconazole in the treatment of antifungal infections. Full article
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