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Lamarra J, Rivero S, Pinotti A, Lopez D. Nanofiber mats functionalized with Mentha piperita essential oil stabilized in a chitosan-based emulsion designed via an electrospinning technique. Int J Biol Macromol 2023; 248:125980. [PMID: 37506795 DOI: 10.1016/j.ijbiomac.2023.125980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/15/2023] [Accepted: 07/23/2023] [Indexed: 07/30/2023]
Abstract
A nanostructured device based on poly(vinyl alcohol) (PVA) loaded with a cross-linked chitosan (CH) emulsion, soy lecithin, and peppermint essential oil (Mentha piperita) was designed for topical applications using an electrospinning instrument coupled to a rotary drum collector. Different suspensions were obtained by varying the PVA to emulsion ratio (PVA:Em) 87.5:12.5, 82:18, and 75:25, using a PVA solution as a control. ATR-FTIR spectra confirmed the interactions among the components of the system. Scanning electron microscopy (SEM) of the mats evinced that the aligned fiber diameter decreased with higher proportions of emulsion while dynamic mechanical analysis (DMA) revealed a decrease in the storage modulus. The entrapment of the functionalized emulsions not only improved the elongation of the matrices but also provided them with greater structural integrity compared to the single PVA matrix. The most favorable formulation in terms of mechanical properties was found to be the 82:18 ratio. After 1 h of close contact between the 82:18 matrix and a porcine skin explant, the latter was examined by confocal microscopy, which revealed the localization of the essential oil mainly on the surface of the stratum corneum (SC).However, after 7 h of contact, the distribution of the peppermint EO throughout the viable epidermis was observed, which was further supported by ATR-FTIR studies. Tailored electrospun matrices would have potential applications as devices for topical or transdermal treatments due to their vehiculization role that allows the diffusion of peppermint essential oil as a skin penetration enhancer.
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Affiliation(s)
- Javier Lamarra
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CCT-CONICET La Plata, CIC, UNLP), 47 y 116 S/N, La Plata, Buenos Aires, Argentina; Facultad de Ciencias Exactas, UNLP, La Plata 1900, Argentina.
| | - Sandra Rivero
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CCT-CONICET La Plata, CIC, UNLP), 47 y 116 S/N, La Plata, Buenos Aires, Argentina; Facultad de Ciencias Exactas, UNLP, La Plata 1900, Argentina
| | - Adriana Pinotti
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CCT-CONICET La Plata, CIC, UNLP), 47 y 116 S/N, La Plata, Buenos Aires, Argentina; Facultad de Ingeniería, UNLP, La Plata 1900, Argentina
| | - Daniel Lopez
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Calle Juan de La Cierva 3, 28006 Madrid, Spain
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Abpeikar Z, Safaei M, Akbar Alizadeh A, Goodarzi A, Hatam G. The novel treatments based on tissue engineering, cell therapy and nanotechnology for cutaneous leishmaniasis. Int J Pharm 2023; 633:122615. [PMID: 36657555 DOI: 10.1016/j.ijpharm.2023.122615] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023]
Abstract
Cutaneous leishmaniasis (CL) is a global public health issue. Conventional treatments have substantial costs, side effects, and parasite resistance. Due to easy application and inexpensive cost, topical treatment is the optimal approach for CL. It could be used alone or with systemic treatments. Electrospun fibers as drug release systems in treating skin lesions have various advantages such as adjustable drug release rate, maintaining appropriate humidity and temperature, gas exchange, plasticity at the lesion site, similarity with the skin extracellular matrix (ECM) and drug delivery with high efficiency. Hydrogels are valuable scaffolds in the treatment of skin lesions. The important features of hydrogels include preserving unstable drugs from degradation, absorption of wound secretions, high biocompatibility, improving the re-epithelialization of the wound and preventing the formation of scars. One of the issues in local drug delivery systems for the skin is the low permeability of drugs in the skin. Polymeric scaffolds that are designed as microneedle patches can penetrate the skin and overcome this challenge. Also, drug delivery using nanocarriers increases the effectiveness of drugs in lower and more tolerable doses and reduces the toxicity of drugs. The application of cell therapy in the treatment of parasitic and infectious diseases has been widely investigated. The complexity of leishmaniasis treatment requires identifying new treatment options like cell therapy to overcome the disease. Topics investigated in this study include drug delivery systems based on tissue engineering scaffolds, nanotechnology and cell therapy-based studies to reduce the complications of CL.
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Affiliation(s)
- Zahra Abpeikar
- Department of Tissue Engineering, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Mohsen Safaei
- Department of Pharmaceutics, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ali Akbar Alizadeh
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Science and Technology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Arash Goodarzi
- Department of Tissue Engineering, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran; Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Gholamreza Hatam
- Basic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Kaptan Y, Güvenilir Y. Polycaprolactone/epoxide-functionalized silica composite microparticles for long-term controlled release of trans-chalcone. JOURNAL OF POLYMER ENGINEERING 2022. [DOI: 10.1515/polyeng-2021-0343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
In this study, controlled release of trans-chalcone was achieved by using a polycaprolactone-based hybrid system as the drug carrier material. Encapsulation efficiency was obtained in the range of 70–75% for various formulations and in vitro release studies, conducted at 37 °C and pH 7.4, revealed slow profile reaching 60% cumulative release. As interpreted from kinetic modelling, drug release was controlled mainly by Fickian diffusion; polymer erosion did not contribute to the TC release. Difference in drug loading efficiencies of the hybrid and neat PCL microparticles was observed such that PCL microparticles had lower loading efficiency than the hybrid microparticles whereas the release profiles were similar. pH of the release medium had affected release profiles; acidic medium enhanced drug release. Characterization of the microparticles were realized by FT-IR, TGA, DSC, SEM and WCA which revealed key properties such as molecular dispersion state and hydrophilicity. With the results obtained, we concluded that our hybrid system has a significant potential for long term release of trans-chalcone.
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Affiliation(s)
- Yasemin Kaptan
- Department of Chemical Engineering , Istanbul Technical University , İstanbul 34469 , Turkey
| | - Yüksel Güvenilir
- Department of Chemical Engineering , Istanbul Technical University , İstanbul 34469 , Turkey
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Kaptan Y, Güvenilir Y. Enzymatic PCL-grafting to NH 2-end grouped silica and development of microspheres for pH-stimulated release of a hydrophobic model drug. Eur J Pharm Biopharm 2022; 181:60-78. [PMID: 36347484 DOI: 10.1016/j.ejpb.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 10/24/2022] [Accepted: 11/01/2022] [Indexed: 11/07/2022]
Abstract
This study set out to evaluate novel PCL-based silica containing nanohybrids as the polymer matrix in a hydrophobic drug-loaded microsphere system. Nanohybrids were synthesized by PCL-grafting to NH2-end grouped silica by in situ enzymatic ring opening polymerization of ε-caprolactone. Molecular weight and monomer conversion, PCL grafting percentage, thermal properties and crystallinity of the nanohybrids were determined by 1H NMR, TGA, DSC and XRD. Synthesized nanohybrids had low crystallinity percentage (32 and 39 %) and molecular weight (4800 and 8700 g/mol), promising for controlled drug release applications. The nanohybrids were used for fabrication of trans-chalcone-loaded microspheres by O/W single emulsion solvent evaporation. Mean particle diameter of the microspheres were between 15 and 30 µm. The result of release studies showed that optimum microsphere formulations (AP4 and A2, respectively) had 61 and 64 % encapsulation efficiency. One of the more significant findings to emerge from this investigation is that TC release was extended to 16 and 37 days, in a controlled manner. TC release was significantly enhanced in acidic pH media (pH 3.6 and 5.6) indicating pH-dependent release from nanohybrid microspheres; releasing 80-100 % of the loaded drug in 4-14 days. Drug/polymer interactions and molecular structures were investigated by FT-IR spectroscopy and DSC analysis. According to the results obtained, enzymatically synthesized nanohybrids have potential for pH-dependent release of the model drug, trans-chalcone.
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Affiliation(s)
- Yasemin Kaptan
- Istanbul Technical University, Department of Chemical Engineering, Istanbul Technical University, 34469 Maslak-Istanbul, Turkey.
| | - Yüksel Güvenilir
- Istanbul Technical University, Department of Chemical Engineering, Istanbul Technical University, 34469 Maslak-Istanbul, Turkey
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Goonoo N, Laetitia Huët MA, Chummun I, Karuri N, Badu K, Gimié F, Bergrath J, Schulze M, Müller M, Bhaw-Luximon A. Nanomedicine-based strategies to improve treatment of cutaneous leishmaniasis. ROYAL SOCIETY OPEN SCIENCE 2022; 9:220058. [PMID: 35719886 PMCID: PMC9198523 DOI: 10.1098/rsos.220058] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 04/14/2022] [Indexed: 05/03/2023]
Abstract
Nanomedicine strategies were first adapted and successfully translated to clinical application for diseases, such as cancer and diabetes. These strategies would no doubt benefit unmet diseases needs as in the case of leishmaniasis. The latter causes skin sores in the cutaneous form and affects internal organs in the visceral form. Treatment of cutaneous leishmaniasis (CL) aims at accelerating wound healing, reducing scarring and cosmetic morbidity, preventing parasite transmission and relapse. Unfortunately, available treatments show only suboptimal effectiveness and none of them were designed specifically for this disease condition. Tissue regeneration using nano-based devices coupled with drug delivery are currently being used in clinic to address diabetic wounds. Thus, in this review, we analyse the current treatment options and attempt to critically analyse the use of nanomedicine-based strategies to address CL wounds in view of achieving scarless wound healing, targeting secondary bacterial infection and lowering drug toxicity.
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Affiliation(s)
- Nowsheen Goonoo
- Biomaterials, Drug Delivery and Nanotechnology Unit, Center for Biomedical and Biomaterials Research, University of Mauritius, Réduit 80837, Mauritius
| | - Marie Andrea Laetitia Huët
- Biomaterials, Drug Delivery and Nanotechnology Unit, Center for Biomedical and Biomaterials Research, University of Mauritius, Réduit 80837, Mauritius
| | - Itisha Chummun
- Biomaterials, Drug Delivery and Nanotechnology Unit, Center for Biomedical and Biomaterials Research, University of Mauritius, Réduit 80837, Mauritius
| | - Nancy Karuri
- Department of Chemical Engineering, Dedan Kimathi University of Technology, Private Bag 10143 – Dedan Kimathi, Nyeri, Kenya
| | - Kingsley Badu
- Vector-borne Infectious Disease Group, Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Fanny Gimié
- Animalerie, Plateforme de recherche CYROI, 2 rue Maxime Rivière, 97490 Sainte Clotilde, Ile de La Réunion, France
| | - Jonas Bergrath
- Department of Natural Sciences, University of Applied Sciences Bonn-Rhein-Sieg, Heisenbergstrasse 16, D-53359 Rheinbach, Germany
| | - Margit Schulze
- Department of Natural Sciences, University of Applied Sciences Bonn-Rhein-Sieg, Heisenbergstrasse 16, D-53359 Rheinbach, Germany
| | - Mareike Müller
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Strasse 2, 57076 Siegen, Germany
| | - Archana Bhaw-Luximon
- Biomaterials, Drug Delivery and Nanotechnology Unit, Center for Biomedical and Biomaterials Research, University of Mauritius, Réduit 80837, Mauritius
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Romo-Rico J, Krishna SM, Bazaka K, Golledge J, Jacob MV. Potential of plant secondary metabolite-based polymers to enhance wound healing. Acta Biomater 2022; 147:34-49. [PMID: 35649506 DOI: 10.1016/j.actbio.2022.05.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 11/01/2022]
Abstract
There is a global epidemic of non-healing wounds. Chronic inflammation, overexpression of pro-inflammatory cytokines, oxidative stress and bacterial infection are implicated in delayed wound healing. Natural extracts are a rich source of bioactive molecules called plant secondary metabolites (PSMs) that include terpenes and phenols. These molecules may facilitate wound healing through their antioxidant, anti-inflammatory, and antibacterial activity. After briefly outlining the process of wound healing and how it is compromised in chronic wounds, this review focuses on investigating how PSMs-based polymers may improve wound healing. Best methods for incorporating PSMs into wound dressings are reviewed and critically compared. The exiting body of literature strongly suggests that PSMs-based polymers incorporated into wound dressings could have clinical value in aiding wound healing. STATEMENT OF SIGNIFICANCE: Chronic wounds develop by the persistence of inflammation, oxidative stress and infection. Chronic wounds affect the worldwide population, by reducing quality of life of patients with significant cost to healthcare systems. To help chronic wounds to heal and overcome this burden, materials with anti-inflammatory, antioxidant and antibacterial properties are required. Plant secondary metabolites (PSMs) are volatile materials that have all these properties. PSMs-based polymers can be fabricated by polymerization techniques. The present review provides an overview of the state-of-the-art of the wound healing mechanisms of PSMs. Current developments in the field of PSMs-based polymers are reviewed and their potential use as wound dressings is also covered.
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Yalcin TE, Tuncel E, Yucel C, Tirnaksiz F. Nanoemulsions Containing Megestrol Acetate: Development, Characterization, and Stability Evaluation. AAPS PharmSciTech 2022; 23:142. [PMID: 35538251 DOI: 10.1208/s12249-022-02289-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/24/2022] [Indexed: 11/30/2022] Open
Abstract
Many active pharmaceutical ingredients (API) are poorly soluble in water and their low oral bioavailability is a major hindrance to their potential use. Megestrol acetate (MGA) is insoluble in water and its oral absorption is limited and considerably affected by food. Nanoemulsions (NEs) can be used as effective oral drug delivery systems where the hydrophobic API is loaded into the oil phase. In this study, MGA-loaded NEs were prepared based on the spontaneous emulsification technique. The effects of different excipients such as ethanol, Tween 80, Lipoid E80, and medium-chain triglyceride (MCT) on the NEs characterization were investigated. The experimental results indicated that optimum MGA-loaded NEs (F20) were nanometer-sized droplets (166.9 ± 3.0 nm) with negative zeta potential (-12.2 ± 1.1 mV). The effect of polyvinylpyrrolidone (PVP) on characteristic properties of F20 was also evaluated. On the selected NEs, in vitro dissolution tests and stability studies in various mediums and storage conditions were performed. The encapsulation efficiency of NEs were > 99%. The overall droplet size of F20 and PVP-2 (PVP-coated NEs) remained relatively stable as the pH changed from 1.2 to 6.8. It was determined that F20 and PVP-2 remained stable at 4°C until 12 weeks and had higher cytotoxicity on MCF-7 cells. To conclude, droplet size, surface charge, and stability are important properties for NEs to have sufficient effectiveness. In this study, alternative oral NEs of low-solubility drug MGA were developed considering the above features.
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Patil P, Zangade S. Synthesis and comparative study of cytotoxicity and anticancer activity of Chalconoid-Co(II) metal complexes with 2-hydroxychalcones analogue containing naphthalene moiety. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2021.100274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Karaca H, Kazancı S. The metal sensing applications of chalcones: The synthesis, characterization and theoretical calculations. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131454] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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