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Rehman R, Hussain M, Muzaffar R, Bano A, Ahmed M, Sadia H. Eucalyptus Essential Oil Based Nanoemulsions: Preparation and Biological Activities. Chem Biodivers 2024; 21:e202400406. [PMID: 38687088 DOI: 10.1002/cbdv.202400406] [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: 02/15/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/02/2024]
Abstract
Eucalyptus essential oil has remarkable industrial importance and biological properties due to its effectiveness against various diseases, reported throughout human history. Despite the extraordinary bioactivities of essential oil, its applications are limited due to volatility, insolubility in water, and less stability. Formulation of nanoemulsion is the best way to enhance the bio-efficacy of this essential oil and eliminate the factors responsible for limited application. This review article compiles the information regarding formulation of Eucalyptus essential oil-based nanoemulsion and their several biological activities and medicinal properties including antibacterial, antifungal, larvicidal, insecticidal, and cytotoxic activities etc. The bio-efficacy of essential oil-based nanoemulsion has also been found to be enhanced as compared utilization of essential oil alone. This review can be beneficial for researchers working on medicinal plant-based natural products, specifically containing Eucalyptus essential oil, to explore new research horizons in this emerging field.
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Affiliation(s)
- Rafia Rehman
- Section of Phytochemistry and Natural Products, Department of Biological Sciences, National University of Medical sciences, Rawalpindi, 46000, Punjab, Pakistan
- Department of Chemistry, University of Okara, Okara, 56300, Pakistan
| | - Muzammal Hussain
- Department of Chemistry, University of Okara, Okara, 56300, Pakistan
| | - Rabeea Muzaffar
- Department of Biochemistry, University of Agriculture, Faisalabad, Faisalabad, 38000
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, 46000, Punjab, Pakistan
| | - Afsar Bano
- Department of Physics, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences, LUMS, 54792, Lahore, Pakistan
| | - Marghoob Ahmed
- School of Chemical and Materials Engineering, National University of Science and Technology, Islamabad, 44000, Islamabad, Pakistan
| | - Haleema Sadia
- Department of Chemistry, University of Okara, Okara, 56300, Pakistan
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Dalabehera M, Rathore C, Rathee A, Lal UR. From plants to particles: herbal solutions and nanotechnology combating resistant vulvovaginal candidiasis. Ther Deliv 2024; 15:371-392. [PMID: 38651887 PMCID: PMC11221605 DOI: 10.4155/tde-2023-0133] [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: 12/02/2023] [Accepted: 03/13/2024] [Indexed: 04/25/2024] Open
Abstract
Despite having current advanced therapy, vulvovaginal candidiasis (VVC) remains a common yet debated healthcare-associated topic worldwide due to multi-drug resistance Candida species. In our review, we outlined and highlighted upcoming values with scope of existing and emerging information regarding the possibility of using various natural molecules combined with modern technology that shows promising anti-candida activity in VVC. Furthermore, in this review, we compiled herbal drug molecules and their nanocarriers approach for enhancing the efficacy and stability of herbal molecules. We have also summarized the patent literature available on herbal drug molecules and their nanoformulation techniques that could alternatively become a new innovative era to combat resistance VVC.
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Affiliation(s)
- Manoj Dalabehera
- University Institute of Pharma Sciences, Chandigarh University, Ajitgarh, Punjab, India
| | - Charul Rathore
- University Institute of Pharma Sciences, Chandigarh University, Ajitgarh, Punjab, India
| | - Ankit Rathee
- University Institute of Pharma Sciences, Chandigarh University, Ajitgarh, Punjab, India
| | - Uma Ranjan Lal
- Department of Natural Products, National Institute of Pharmaceutical Education & Research, Punjab 160062 Mohali, India
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da Silva JT, Dantas de Sousa PH, Costa AF, de Menezes LB, Alves SF, Pellegrini F, Amaral AC. Fluconazole and propolis co-encapsulated in chitosan nanoparticles for the treatment of vulvovaginal candidiasis in a murine model. Med Mycol 2023; 61:myad113. [PMID: 37947253 DOI: 10.1093/mmy/myad113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 09/25/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023] Open
Abstract
Vulvovaginal candidiasis (VVC) is a fungal infection caused mainly by Candida albicans. The treatment of VVC with azoles has been impaired due to the increased cases of resistance presented by this pathogen. The aim of the present study was to investigate the antifungal activity of mucoadhesive chitosan nanoparticles encapsulating both green propolis and fluconazole for topical use in the treatment of VVC. The nanoparticles were prepared by the ionic gelation method, resulting in a size of 316.5 nm containing 22 mg/kg of green propolis and 2.4 mg/kg of fluconazole. The nanoparticles were non-toxic in vitro using red blood cells or in vivo in a Galleria mellonella toxicity model. The treatment of female BALB/c mice infected by C. albicans ATCC 10231 with topical nanoparticles co-encapsulating fluconazole and green propolis was effective even using a fluconazole amount 20 times lower than the amount of miconazole nitrate 2% cream. Considering that the mucoadhesive property of chitosan, which is known to allow a prolonged retention time of the compounds at the mucous epithelia, the antifungal potential of the phenols and flavonoids present in green propolis may have favored the effectiveness of this treatment. These results indicate that this formulation of topical use for fluconazole associated with green propolis can be used as a promising approach to therapy for the treatment of VVC, thus contributing to reducing the development of resistance to azoles.
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Affiliation(s)
- Jacqueline Teixeira da Silva
- Laboratory of Nano & Biotechnology, Institute of Tropical Pathology and Public Health, Universidade Federal de Goiás, St 235 university sector, Goiânia, GO, 74605-050, Brazil
| | - Paulo Henrique Dantas de Sousa
- Laboratory of Nano & Biotechnology, Institute of Tropical Pathology and Public Health, Universidade Federal de Goiás, St 235 university sector, Goiânia, GO, 74605-050, Brazil
| | - Adelaide Fernandes Costa
- Laboratory of Nano & Biotechnology, Institute of Tropical Pathology and Public Health, Universidade Federal de Goiás, St 235 university sector, Goiânia, GO, 74605-050, Brazil
| | - Liliana Borges de Menezes
- Laboratory of Pathology, Universidade Federal de Goiás, St 235 university sector, Goiânia, GO, 74605-050, Brazil
| | - Suzana Ferreira Alves
- Pharmacy Course, School of Medical Sciences, Pharmaceuticals and Biomedical Sciences, Pontifícia Universidade Católica de Goiás, Av university, 1440, Goiânia, GO, 74175-120, Brazil
| | - Flavio Pellegrini
- Company Citrinitas, St Pedroso Alvarenga, 505, São Paulo, SP, 04531-930, Brazil
| | - Andre Correa Amaral
- Laboratory of Nano & Biotechnology, Institute of Tropical Pathology and Public Health, Universidade Federal de Goiás, St 235 university sector, Goiânia, GO, 74605-050, Brazil
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Garcia LGS, Rocha MGD, Freire RS, Nunes PIG, Nunes JVS, Fernandes MR, Pereira-Neto WA, Sidrim JJC, Santos FA, Rocha MFG, Rodrigues LKA, Vieira RS, Brilhante RSN. Chitosan microparticles loaded with essential oils inhibit duo-biofilms of Candida albicans and Streptococcus mutans. J Appl Oral Sci 2023; 31:e20230146. [PMID: 37729259 PMCID: PMC10519671 DOI: 10.1590/1678-7757-2023-0146] [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: 04/20/2023] [Revised: 08/07/2023] [Accepted: 08/07/2023] [Indexed: 09/22/2023] Open
Abstract
OBJECTIVE Oral candidiasis is a common fungal infection that affects the oral mucosa, and happens when Candida albicans interacts with bacteria in the oral microbiota, such as Streptococcus mutans, causing severe early childhood caries. C. albicans and S. mutans mixed biofilms are challenging to treat with conventional antimicrobial therapies, thus, new anti-infective drugs are required. This study aimed to test a drug delivery system based on chitosan microparticles loaded with geranium and lemongrass essential oils to inhibit C. albicans and S. mutans mixed biofilms. METHODOLOGY Chitosan microparticles loaded with essential oils (CM-EOs) were obtained by spray-drying. Susceptibility of planktonic were performed according CLSI at 4 to 2,048 µg/mL. Mixed biofilms were incubated at 37ºC for 48 h and exposed to CM-EOs at 256 to 4,096 µg/mL. The antimicrobial effect was evaluated using the MTT assay, with biofilm architectural changes analyzed by scanning electron microscopy. RAW 264.7 cell was used to evaluate compound cytotoxicity. RESULTS CM-EOs had better planktonic activity against C. albicans than S. mutans. All samples reduced the metabolic activity of mixed C. albicans and S. mutans biofilms, with encapsulated oils showing better activity than raw chitosan or oils. The microparticles reduced the biofilm on the slides. The essential oils showed cytotoxic effects against RAW 264.7 cells, but encapsulation into chitosan microparticles decreased their toxicity. CONCLUSION This study demonstrates that chitosan loaded with essential oils may provide an alternative method for treating diseases caused by C. albicans and S. mutans mixed biofilm, such as dental caries.
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Affiliation(s)
| | | | | | - Paulo Iury Gomes Nunes
- Universidade Federal do Ceará, Faculdade de Medicina, Departamento de Fisiologia e Farmacologia, Laboratório de Produtos Naturais, Ceará, Brasil
| | | | - Mirele Rodrigues Fernandes
- Universidade Federal do Ceará, Faculdade de Medicina, Departamento de Patologia e Medicina Legal, Centro Especializado em Micologia Médica, Ceará, Brasil
| | - Waldemiro Aquino Pereira-Neto
- Universidade Federal do Ceará, Faculdade de Medicina, Departamento de Patologia e Medicina Legal, Centro Especializado em Micologia Médica, Ceará, Brasil
| | - José Júlio Costa Sidrim
- Universidade Federal do Ceará, Faculdade de Medicina, Departamento de Patologia e Medicina Legal, Centro Especializado em Micologia Médica, Ceará, Brasil
| | - Flavia Almeida Santos
- Universidade Federal do Ceará, Faculdade de Medicina, Departamento de Fisiologia e Farmacologia, Laboratório de Produtos Naturais, Ceará, Brasil
| | | | - Lidiany Karla Azevedo Rodrigues
- Universidade Federal do Ceará, Faculdade de Farmácia, Odontologia e Enfermagem, Departamento de Odontologia Restauradora, Ceará, Brasil
| | | | - Raimunda Sâmia Nogueira Brilhante
- Universidade Federal do Ceará, Faculdade de Medicina, Departamento de Patologia e Medicina Legal, Centro Especializado em Micologia Médica, Ceará, Brasil
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Sosa L, Espinoza LC, Valarezo E, Bozal N, Calpena A, Fábrega MJ, Baldomà L, Rincón M, Mallandrich M. Therapeutic Applications of Essential Oils from Native and Cultivated Ecuadorian Plants: Cutaneous Candidiasis and Dermal Anti-Inflammatory Activity. Molecules 2023; 28:5903. [PMID: 37570874 PMCID: PMC10420932 DOI: 10.3390/molecules28155903] [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: 07/15/2023] [Revised: 07/28/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
Essential oils are a complex mixture of aromatic substances whose pharmacological actions, including antimicrobial, antioxidant, anticancer, and anti-inflammatory activities, have been widely reported. This study aimed to evaluate the anti-Candida and dermal anti-inflammatory activity of essential oils from native and cultivated Ecuadorian plants. Essential oils from Bursera graveolens, Dacryodes peruviana, Mespilodaphne quixos, and Melaleuca armillaris were isolated by hydrodistillation and were characterized physically and chemically. Its tolerance was analyzed by in vitro and in vivo studies. The antifungal activity was studied against Candida albicans, Candida glabrata, and Candida parapsilosis, whereas the anti-inflammatory effect was evaluated by a mouse ear edema model. The main compounds were limonene, α-phellandrene, (E)-methyl cinnamate, and 1,8-cineole, respectively. All essential oils showed high tolerability for skin application, antifungal activity against the three Candida strains, and anti-inflammatory efficacy by decreasing edema and overexpression of pro-inflammatory cytokines. Dacryodes peruviana essential oil showed the highest antifungal activity. On the other hand, Dacryodes peruviana and Melaleuca armillaris showed the greatest anti-inflammatory potential, decreasing edema by 53.3% and 65.25%, respectively, and inhibiting the overexpression of TNF-α, IL-8, IL-17A, and IL-23. The results suggest that these essential oils could be used as alternative therapies in the treatment of both cutaneous candidiasis and dermal inflammation.
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Affiliation(s)
- Lilian Sosa
- Microbiological Research Institute (IIM), National Autonomous University of Honduras (UNAH), Tegucigalpa 11101, Honduras;
- Research Institute of Applied Sciences and Technology, National Autonomous University of Honduras (UNAH), Tegucigalpa 11101, Honduras
| | - Lupe Carolina Espinoza
- Departamento de Química, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador; (L.C.E.); (E.V.)
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain;
| | - Eduardo Valarezo
- Departamento de Química, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador; (L.C.E.); (E.V.)
| | - Núria Bozal
- Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain;
| | - Ana Calpena
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain;
- Departament Farmàcia, Tecnologia Farmacèutica, i Físicoquímica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain
| | - María-José Fábrega
- Department of Experimental and Health Sciences, Parc of Biomedical Research of Barcelona, Pompeu Fabra University, 08003 Barcelona, Spain;
| | - Laura Baldomà
- Departament de Bioquímica i Fisiologia, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain;
| | - María Rincón
- Departament de Ciència de Materials i Química Física, Facultat de Química, Universitat de Barcelona (UB), 08028 Barcelona, Spain;
| | - Mireia Mallandrich
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona (UB), 08028 Barcelona, Spain;
- Departament Farmàcia, Tecnologia Farmacèutica, i Físicoquímica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain
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Balasubramanian D, Girigoswami A, Girigoswami K. Antimicrobial, Pesticidal and Food Preservative Applications of Lemongrass Oil Nanoemulsion: A Mini-Review. RECENT ADVANCES IN FOOD, NUTRITION & AGRICULTURE 2022; 13:51-58. [PMID: 35638282 DOI: 10.2174/2212798412666220527154707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Essential oils that are extracted from plants have shown beneficial effects on humans and animals, evidenced by traditional medicine. They possess many essential phytocomponents that act as antimicrobial agents, and most of them are safe for external usage. INTRODUCTION Lemongrass essential oil is extracted from the grass, such as Cymbopogon flexuosus, and is used for antimicrobial activity for a long time. The efficacy of this oil is limited due to the poor solubility and microbial penetration, easy vaporization, and lower stability. Nanoformulations and nanoencapsulations are nanotechnology fields that aim to improve the bioavailability of many natural compounds and enhance their stability. Lemongrass oil has also been nanoformulated as nanoemulsion, and various antimicrobial activities against various pathogens have been demonstrated, which are superior to free lemongrass oil. METHODOLOGY We have used the search engines PubMed and Google Scholar for the mentioned keywords and selected the recent references related to this topic. CONCLUSION In this review, we have discussed various antimicrobial properties of lemongrass essential oil nanoemulsion and its application, such as antibacterial, antifungal, pesticidal, food preservative, and antibiofilm activity.
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Affiliation(s)
- Deepika Balasubramanian
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Chettinad Health City, Kelambakkam, 603103, Tamilnadu, India
| | - Agnishwar Girigoswami
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Chettinad Health City, Kelambakkam, 603103, Tamilnadu, India
| | - Koyeli Girigoswami
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Chettinad Health City, Kelambakkam, 603103, Tamilnadu, India
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Haghighi TM, Saharkhiz MJ, Khalesi M, Mousavi SS, Ramezanian A. Eco-friendly 'ochratoxin A' control in stored licorice roots - quality assurance perspective. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2022; 39:1321-1336. [PMID: 35594289 DOI: 10.1080/19440049.2022.2077460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
According to toxicity data, ochratoxin A (OTA) is the second most important mycotoxin and is produced by Aspergillus and Penicillium. As a natural antifungal agent, clove essential oil (CEO) is a substance generally recognised as safe (GRAS) and shows strong activity against fungal pathogens. Here, we aimed to investigate the control efficacy of CEO in nano-emulsions (CEN) against OTA production in licorice roots and rhizomes during storage. The experiments were performed under simulated conditions of all four seasons (i.e. Spring, Summer, Autumn and Winter). Relative humidity (RH) and temperature were simulated in desiccators along with various salt solutions in incubators. Fresh licorice roots were immersed in CEN at various concentrations (150, 300, 600, 1200 and 2400 µl/l). Before utilising the nano-emulsions, we measured their polydispersity index and mean droplet size by the dynamic light scattering (DLS) technique. Also, the chemical composition of the CEO was determined using GC and GC-MS analyses. Sampling was carried out to monitor OTA once every five days. The samples were dried immediately and analysed by high-performance liquid chromatography (HPLC). Results showed that various concentrations of CEN inhibited the growth of fungi and OTA production. The most effective CEN concentrations were 1200 and 2400 µl/l, which reduced OTA production to 19 and 20 ppb under Winter and Autumn conditions, respectively. These results suggest an effective eco-friendly method for the storage of licorice to reduce postharvest fungal decay.
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Affiliation(s)
| | - Mohammad Jamal Saharkhiz
- Department of Horticultural Science, School of Agriculture, Shiraz University, Shiraz, Iran.,Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammadreza Khalesi
- Department of Biological Sciences, School of Natural Sciences, University of Limerick, Limerick, Ireland
| | - Seyyed Sasan Mousavi
- Department of Horticultural Science, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Asghar Ramezanian
- Department of Horticultural Science, School of Agriculture, Shiraz University, Shiraz, Iran
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Dupuis V, Cerbu C, Witkowski L, Potarniche AV, Timar MC, Żychska M, Sabliov CM. Nanodelivery of essential oils as efficient tools against antimicrobial resistance: a review of the type and physical-chemical properties of the delivery systems and applications. Drug Deliv 2022; 29:1007-1024. [PMID: 35363104 PMCID: PMC8979527 DOI: 10.1080/10717544.2022.2056663] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
This review provides a synthesis of the last ten years of research on nanodelivery systems used for the delivery of essential oils (EOs), as well as their potential as a viable alternative to antibiotics in human and veterinary therapy. The use of essential oils alone in therapy is not always possible due to several limitations but nanodelivery systems seem to be able to overcome these issues. The choice of the essential oil, as well as the choice of the nanodelivery system influences the therapeutic efficacy obtained. While several studies on the characterization of EOs exist, this review assesses the characteristics of the nanomaterials used for the delivery of essential oils, as well as impact on the functionality of nanodelivered essential oils, and successful applications. Two classes of delivery systems stand out: polymeric nanoparticles (NPs) including chitosan, cellulose, zein, sodium alginate, and poly(lactic-co-glycolic) acid (PLGA), and lipidic NPs including nanostructured lipid carriers, solid lipid NPs, nanoemulsions, liposomes, and niosomes. While the advantages and disadvantages of these delivery systems and information on stability, release, and efficacy of the nanodelivered EOs are covered in the literature as presented in this review, essential information, such as the speed of emergence of a potential bacteria resistance to these new systems, or dosages for each type of infection and for each animal species or humans is still missing today. Therefore, more quantitative and in vivo studies should be conducted before the adoption of EOs loaded NPs as an alternative to antibiotics, where appropriate.
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Affiliation(s)
- Victoria Dupuis
- Department of Infectious Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Cluj-Napoca, Romania
| | - Constantin Cerbu
- Department of Infectious Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Cluj-Napoca, Romania
| | - Lucjan Witkowski
- Laboratory of Veterinary Epidemiology and Economic, Institute of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Warsaw, Poland
| | - Adrian-Valentin Potarniche
- Department of Infectious Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Cluj-Napoca, Romania
| | - Maria Cristina Timar
- Faculty of Furniture Design and Wood Engineering, Department of Wood Processing and Wood Products Design, Transilvania University of Brasov, Brasov, Romania
| | - Monika Żychska
- Laboratory of Veterinary Epidemiology and Economic, Institute of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Warsaw, Poland
| | - Cristina M Sabliov
- Biological and Agricultural Engineering Department, Louisiana State University and LSU Agricultural Center, Baton Rouge, LA, USA
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Development, Optimization, and Evaluation of Luliconazole Nanoemulgel for the Treatment of Fungal Infection. J CHEM-NY 2021. [DOI: 10.1155/2021/4942659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The present study aimed to optimize luliconazole nanoemulsion using Box–Behnken statistical design, which was further incorporated into the polymeric gel of Carbopol 934. The formulation was characterized for its size, entrapment efficiency, ex vivo permeation, and mechanism of release. The size of the dispersed globules of the optimized drug-loaded nanoemulsion was found to be 17 ± 3.67 nm with a polydispersity index (PDI) less than 0.5. Although the surface charge was recorded at –9.53 ± 0.251, the stability was maintained by the polymeric matrix that prevented aggregation and coalescence of the dispersed globules. The luliconazole-nanoemulgel (LUL-NEG) was characterized for drug content analysis, viscosity, pH, and refractive index, where the results were found to be 99.06 ± 0.59%, 9.26 ± 0.08 Pa.s, 5.65 ± 0.17, and 1.31 ± 0.08, respectively. The permeation across the rat skin was found to be significantly higher with LUL-NEG when compared with LUL gel. Furthermore, the skin irritation test performed in experimental animals revealed that the blank NEG, as well as the LUL-NEG, did not produce any signs of erythema following 48 h exposure. In addition, the histopathological findings of the experimental skins reported no abnormal signs at the formulation application site. Finally, the NEG formulation was found to create a statistically significant zone of inhibition (
< 0.05) when compared to all other test groups. Overall, it could be summarized that the nanoemulgel approach of delivering luliconazole across the skin to treat skin fungal infections could be a promising strategy.
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Emulsion-Based Multicompartment Vaginal Drug Carriers: From Nanoemulsions to Nanoemulgels. Int J Mol Sci 2021; 22:ijms22126455. [PMID: 34208652 PMCID: PMC8233730 DOI: 10.3390/ijms22126455] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/10/2021] [Accepted: 06/11/2021] [Indexed: 01/05/2023] Open
Abstract
In order to overcome the limitations associated with vaginal administration of drugs, e.g., the short contact time of the drug form with the mucosa or continuous carrier wash-out, the development of new carriers for gynecological use is necessary. Furthermore, high individual anatomical and physiological variability resulting in unsatisfactory therapeutic efficacy of lipophilic active substances requires application of multicompartment drug delivery systems. This manuscript provides an up-to-date comprehensive review of the literature on emulsion-based vaginal dosage forms (EVDF) including macroemulsions, microemulsions, nanoemulsions, multiple emulsions and self-emulsifying drug delivery systems. The first part of the paper discusses (i) the influence of anatomical-physiological conditions on therapeutic efficacy of drug forms after local and systemic administration, (ii) characterization of EVDF components and the manufacturing techniques of these dosage forms and (iii) methods used to evaluate the physicochemical and pharmaceutical properties of emulsion-based vaginal dosage forms. The second part of the paper presents (iv) the results of biological and in vivo studies as well as (v) clinical evaluation of EVDF safety and therapeutic efficacy across different indications.
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Essential oils encapsulated in chitosan microparticles against Candida albicans biofilms. Int J Biol Macromol 2020; 166:621-632. [PMID: 33137389 DOI: 10.1016/j.ijbiomac.2020.10.220] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 10/14/2020] [Accepted: 10/27/2020] [Indexed: 11/20/2022]
Abstract
The aim of the study was to produce and characterize chitosan microparticles loaded with essential oils (CMEOs), evaluate the essential oil (EO) release profile and the CMEOs' anti-Candida activity. The chitosan microparticles (CMs) loaded with lemongrass essential oil (LEO) and geranium essential oil (GEO) were produced by the spray-drying method and characterized regarding CMEO morphological and physicochemical parameters and EO encapsulation efficiency (EE) and release profile. The planktonic activity was quantified by broth microdilution, and the activity against biofilm was quantified by biomass formation measurement. The LEO and GEO compositions were analyzed by gas chromatography combined with mass spectrometry (GC/MS), finding the main components citral (83.17%) and citronellol (24.53%). The CMs and CMEOs showed regular distribution and spherical shape (1 to 15 μm), without any morphological and physical modifications after EO incorporation. EE% ranged from 12 to 39%. In vitro release tests demonstrated the EO release rates, after 144 h, were 33% and 55% in PBS and HCl media, respectively. The minimum inhibitory concentration (MIC) values for CMEOs were lower than for CMs and pure EOs (P < 0.05). The higher CMEO biofilm inhibition percentage demonstrates the efficiency of microparticles against Candida biofilm. These results indicate that CMEOs are promising compounds that have antibiofilm activity against C. albicans.
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Antibacterial, Antifungal, Antimycotoxigenic, and Antioxidant Activities of Essential Oils: An Updated Review. Molecules 2020; 25:molecules25204711. [PMID: 33066611 PMCID: PMC7587387 DOI: 10.3390/molecules25204711] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/11/2020] [Accepted: 10/13/2020] [Indexed: 01/19/2023] Open
Abstract
The interest in using natural antimicrobials instead of chemical preservatives in food products has been increasing in recent years. In regard to this, essential oils-natural and liquid secondary plant metabolites-are gaining importance for their use in the protection of foods, since they are accepted as safe and healthy. Although research studies indicate that the antibacterial and antioxidant activities of essential oils (EOs) are more common compared to other biological activities, specific concerns have led scientists to investigate the areas that are still in need of research. To the best of our knowledge, there is no review paper in which antifungal and especially antimycotoxigenic effects are compiled. Further, the low stability of essential oils under environmental conditions such as temperature and light has forced scientists to develop and use recent approaches such as encapsulation, coating, use in edible films, etc. This review provides an overview of the current literature on essential oils mainly on antifungal and antimycotoxigenic but also their antibacterial and antioxidant activities. Additionally, the recent applications of EOs including encapsulation, edible coatings, and active packaging are outlined.
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