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do Nascimento JR, de Matos Monteiro Lira BS, do Nascimento MO, Lopes GLN, Ferreira GM, de Souza Nunes GC, Gonçalves RS, Carvalho ALM, Vilegas W, da Rocha CQ. Innovative Microemulsion Loaded with Unusual Dimeric Flavonoids from Fridericia platyphylla (Cham.) L.G. Lohmann Roots. AAPS PharmSciTech 2023; 24:212. [PMID: 37848719 DOI: 10.1208/s12249-023-02655-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/13/2023] [Indexed: 10/19/2023] Open
Abstract
Fridericia platyphylla (Cham.) L.G. Lohmann is a species native to the Brazilian cerrado, with promising bioactivity. The organic fraction of the roots is rich in unusual dimeric flavonoids, reported as potential candidates for cancer treatment. The exploration of these flavonoids is very important, considering their diverse biological activities and the need for innovative therapeutic options. This work aimed to develop and characterize a microemulsion loaded with a non-polar fraction (DCM). The constituents were chosen, and the pseudo-ternary diagram was constructed to determine the region of microemulsion formation. The microemulsions blank (ME), with 3% (ME3) and 5% (ME5) of fraction DCM, were characterized in terms of droplet size, zeta potential, and polydispersity index. Both MEs showed particle sizes <100 nm; only ME3 exhibited better values for polydispersity index and zeta potential and was therefore selected for further study. The organoleptic and physicochemical characteristics were evaluated, revealing limpidity and transparency typical of these microstructures, physiologically acceptable pH, refractive index of 1.42±0.01, and density of 1.017 g/cm3±0.01. The stability tests showed good stability profiles even after exposure to extreme thermal conditions, with minimal changes in pH and the content of the incorporated fraction. The in vitro release study demonstrated that ME3 enabled the controlled release of the fraction, with a cumulative amount released over 60% within 6 h. Furthermore, fraction DCM and ME3 exhibited no toxicity in Tenebrio molitor larvae. The developed microemulsion exhibited excellent properties, so this study represents the first successful attempt to develop a formulation that incorporates the dimeric flavonoid fraction.
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Affiliation(s)
| | | | | | | | - Glaucio Monteiro Ferreira
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | | | - Wagner Vilegas
- Institut of Biosciences, Coastal Campus of São Vicente, Paulista State University-UNESP, São Vicente, São Paulo, Brazil
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de Araujo GRS, Azevedo Lima OV, Barreto Neujahr JP, Matos SS, de Souza TA, Dos Santos AM, Chorilli M, de Souza Araujo AA, Duarte MC, da Cunha Gonsalves JKM, de Souza Nunes R, Dos Santos MRV, Vitorino Sarmento VH, Moreira Lira AA. Lyotropic liquid crystal mesophases as transdermal delivery systems for lipophilic drugs: A comparative study. Int J Pharm 2023; 636:122853. [PMID: 36931537 DOI: 10.1016/j.ijpharm.2023.122853] [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: 10/05/2022] [Revised: 03/10/2023] [Accepted: 03/12/2023] [Indexed: 03/17/2023]
Abstract
The present work aimed to evaluate different Liquid Crystal Mesophases (LCM) as transdermal drug delivery systems (TDDS) for nifedipine (NFD), a lipophilic drug model. The formulations composed of water, Citrus sinensis essential oil (CSEO), PPG-5-CETETH-20, and Olive oil ester PEG-7 were obtained and characterized by polarized light microscopy (PLM), rheology, small-angle x-ray scattering (SAXS), Fourier transform infrared coupled with an attenuated total reflection accessory (FTIR-ATR) and in vitro assays: bioadhesion, drug release, skin permeation, and retention tests. As a result, changes in component proportions led to several transparent viscous systems with an anisotropic profile. PLM and SAXS proved the presence of lamellar (S1), hexagonal (S3), and lamellar + hexagonal (S2) LCM, and rheology showed a high viscoelasticity profile. LCMs were able to adhere to the skin, and S2 achieved higher adhesion strength. NFD (5 mg/mL) has not modified the organization of LCMs. Results also showed that S3 promoted higher permeation and retention and higher disorganization of stratum corneum lipids, which is the main permeation-enhancing mechanism. Thus, the formulations obtained can carry and improve drug delivery through the skin and are promising TDDS for lipophilic drug administration, such as NFD.
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Affiliation(s)
| | | | | | - Saulo Santos Matos
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Thalisson Amorim de Souza
- Institute for Research in Pharmaceutical and Medications, Federal University of Paraíba, João Pessoa, PB, Brazil
| | | | - Marlus Chorilli
- School of Pharmaceutical Sciences, Paulista State University, Araraquara, SP, Brazil
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Souza de Araujo GR, Mendonça da Cruz Macieira G, Xavier de Oliveira D, Santos Matos S, Nery Dos Santos Q, Otubo L, Antunes de Souza Araújo A, Cavalcante Duarte M, Moreira Lira AA, de Souza Nunes R, Vitorino Sarmento VH. Microemulsions formed by PPG-5-CETETH-20 at low concentrations for transdermal delivery of nifedipine: Structural and in vitro study. Colloids Surf B Biointerfaces 2022; 214:112474. [PMID: 35338963 DOI: 10.1016/j.colsurfb.2022.112474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/13/2022] [Accepted: 03/19/2022] [Indexed: 12/26/2022]
Abstract
Nifedipine is a potent anti-hypertensive, which is poorly orally bioavailable on account of first-pass metabolism, short half-life, and low water solubility. This study aimed to develop a microemulsified system with low surfactant concentration and to evaluate the influence of microemulsion (ME) phase behavior on skin permeation of nifedipine, as drug model. Thereafter, MEs were obtained using PPG-5-CETETH-20, oleic acid, and phosphate buffer at pH 5.0. The selected MEs were isotropic, with droplet diameters less than 10 nm, polydispersity index < 0.25, and pH between 5.0 and 5.2. MEs presented low viscosity and Newtonian behavior. SAXS results confirmed bicontinuous and oil-in-water (o/w) MEs formation. The presence of the drug promoted only very slight modifications in the ME structure. The MEs presented ability to deliver nifedipine via the transdermal route when in comparison with the control. Nevertheless, the skin permeated and retained amounts from the o/w and bicontinuous formulations did not differ significantly. The ATR-FTIR demonstrated that both formulations promoted fluidization and disorganization of lipids and increased the drug diffusion and partition coefficients in the skin. In conclusion, PPG-5-CETETH-20 MEs obtained proved to be effective skin permeation enhancers, acting by rising the coefficients of partition and diffusion of the nifedipine in the skin.
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Affiliation(s)
| | - Givalda Mendonça da Cruz Macieira
- Department of Chemistry, Federal University of Sergipe, Av. Vereador Olimpio Grande, Sítio Porto, Itabaiana, s/n 49506-036 SE, Brazil
| | - Dayane Xavier de Oliveira
- Department of Chemistry, Federal University of Sergipe, Av. Vereador Olimpio Grande, Sítio Porto, Itabaiana, s/n 49506-036 SE, Brazil
| | - Saulo Santos Matos
- Department of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jd. Rosa Elze, São Cristóvão, s/n 49100-000 SE, Brazil
| | - Quesia Nery Dos Santos
- Department of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jd. Rosa Elze, São Cristóvão, s/n 49100-000 SE, Brazil
| | - Larissa Otubo
- Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, Cidade Universitária, Av. Prof. Lineu Prestes, 2242, São Paulo, CEP 05508-000 SP, Brazil
| | - Adriano Antunes de Souza Araújo
- Department of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jd. Rosa Elze, São Cristóvão, s/n 49100-000 SE, Brazil
| | - Marcelo Cavalcante Duarte
- Department of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jd. Rosa Elze, São Cristóvão, s/n 49100-000 SE, Brazil
| | - Ana Amélia Moreira Lira
- Department of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jd. Rosa Elze, São Cristóvão, s/n 49100-000 SE, Brazil
| | - Rogéria de Souza Nunes
- Department of Pharmacy, Federal University of Sergipe, Av. Marechal Rondon, Jd. Rosa Elze, São Cristóvão, s/n 49100-000 SE, Brazil
| | - Victor Hugo Vitorino Sarmento
- Department of Chemistry, Federal University of Sergipe, Av. Vereador Olimpio Grande, Sítio Porto, Itabaiana, s/n 49506-036 SE, Brazil.
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de Jesus Santos A, Macêdo NA, de Holanda Cavalcanti SC, Sarmento VHV, Moreira Lira AA, Dos Santos CP, La Corte Santos R, Souza Nunes RD. Larvicidal formulation containing N-tosylindole: A viable alternative to chemical control of Aedes aegypti. Colloids Surf B Biointerfaces 2022; 213:112380. [PMID: 35151995 DOI: 10.1016/j.colsurfb.2022.112380] [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: 11/09/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 11/16/2022]
Abstract
Aedes aegypti is currently a major public health problem. This mosquito is responsible for the spread of infectious diseases that have been causing epidemics worldwide. Surfactant-stabilized systems, such as microemulsions, liquid-crystalline precursors and liquid crystals, are promising sustained delivery formulations of hydrophilic and hydrophobic substances. These systems are biocompatible water-soluble reservoirs for N-tosylindole exhibiting biological activity against Aedes aegypti Linn. (Diptera: Culicidae) larvae. The ternary diagram displayed four regions: microemulsion (ME), liquid crystal (LC), emulsion (EM) and phase separation (PS). PLM and SAXS distinguished microemulsions, lamellar and hexagonal phase liquid crystals. The system had a lethal concentration of 50% (LC50 = 0.1 ppm, 0.36 µM) lower than pure N-tosylindole (0.24 ppm, 0.88 µM), which has limitations in aqueous media. Furthermore, the formulation displayed no toxicity to Artemia sp., a non-target organism. The system exhibited excellent larvicidal activity as an alternative to commercial larvicides that have shown resistance and toxicity to the environment by Ae. aegypti larvae due to prolonged use. In addition, a two-fold increase in potency was observed.
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Cohen N, Attia D, Levi‐Kalisman Y, Bitton R, Yerushalmi‐Rozen R. Emergent hybrid mesophases in ternary mixtures of cellulose nanocrystals ‐ Pluronic micelles‐water. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Neta Cohen
- Department of Chemical Engineering Ben‐Gurion University of the Negev Beer‐Sheva Israel
| | - David Attia
- Department of Chemical Engineering Ben‐Gurion University of the Negev Beer‐Sheva Israel
| | - Yael Levi‐Kalisman
- The Center for Nanoscience and Nanotechnology, and The Institute of Life Sciences The Hebrew University of Jerusalem Jerusalem Israel
| | - Ronit Bitton
- Department of Chemical Engineering Ben‐Gurion University of the Negev Beer‐Sheva Israel
- The Ilse Katz Institute for Nanoscience and Technology Ben‐Gurion University of the Negev Beer‐Sheva Israel
| | - Rachel Yerushalmi‐Rozen
- Department of Chemical Engineering Ben‐Gurion University of the Negev Beer‐Sheva Israel
- The Ilse Katz Institute for Nanoscience and Technology Ben‐Gurion University of the Negev Beer‐Sheva Israel
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Encapsulation of volatile compounds in liquid media: Fragrances, flavors, and essential oils in commercial formulations. Adv Colloid Interface Sci 2021; 298:102544. [PMID: 34717207 DOI: 10.1016/j.cis.2021.102544] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 12/23/2022]
Abstract
The first marketed example of the application of microcapsules dates back to 1957. Since then, microencapsulation techniques and knowledge have progressed in a plethora of technological fields, and efforts have been directed toward the design of progressively more efficient carriers. The protection of payloads from the exposure to unfavorable environments indeed grants enhanced efficacy, safety, and stability of encapsulated species while allowing for a fine tuning of their release profile and longer lasting beneficial effects. Perfumes or, more generally, active-loaded microcapsules are nowadays present in a very large number of consumer products. Commercial products currently make use of rigid, stable polymer-based microcapsules with excellent release properties. However, this type of microcapsules does not meet certain sustainability requirements such as biocompatibility and biodegradability: the leaking via wastewater contributes to the alarming phenomenon of microplastic pollution with about 4% of total microplastic in the environment. Therefore, there is a need to address new issues which have been emerging in relation to the poor environmental profile of such materials. The progresses in some of the main application fields of microencapsulation, such as household care, toiletries, cosmetics, food, and pesticides are reviewed herein. The main technologies employed in microcapsules production and the mechanisms underlying the release of actives are also discussed. Both the advantages and disadvantages of every technique have been considered to allow a careful choice of the most suitable technique for a specific target application and prepare the ground for novel ideas and approaches for encapsulation strategies that we expect to be proposed within the next years.
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Tian C, Jie H, Xia M, Liu Liu, Cao W, Chen J, Xiaoqin C. Physicochemical Evaluation and Pharmacodynamics of Itraconazole-loaded Liquid Crystal Precursor for Vaginal Delivery. Drug Dev Ind Pharm 2021; 47:1223-1234. [PMID: 34779328 DOI: 10.1080/03639045.2021.1988096] [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: 10/19/2022]
Abstract
PURPOSE To develop liquid crystal (LC) precursor that can be used as a novel vaginal delivery system for Itraconazole (ITZ) and evaluate its pharmacodynamics. Methods: The LC precursor was prepared by using phytantriol (PYT) as lipid matrix and N, N-dimethylformamide (DMAC) as solvent. Swelling studies were performed to assess the phase conversion ability. The formulations were characterized by crossed polarized light microscopy (CPLM), small-angle X-ray scatterin (SAXS). Moreover, the rheological and in vitro drug release behavior were investigated. Then the vaginal retention time of ITZ in the optimal prescription was evaluated. Finally, the pharmacodynamics studies of the ITZ-loaded LC precursor were performed in a mouse model of vulvovaginal candidiasis (VVC). Results: The LC precursor could transform to LC gels after administration into the vagina. Based on PLM and SAXS, the LC gels, formed after phase-conversion, were cubic LC. The LC precursor was Non-Newtonian, while the LC gels exhibited a pseudo-plastic fluid behavior. In vitro release results revealed that F2 (68.0 %) had a higher cumulative drug release than that of F1 (59.17 %) at 72 h. Most of the LC gels could be retained in the vagina of mice for 24 - 36 h. Pharmacodynamics studies showed that there was only mild inflammation or no inflammatory stimulation in the control group. The ITZ-loaded LC precursor significantly improved the symptoms of vaginitis in mice and had a better therapeutic effect than that of positive control group. Conclusions: The ITZ-loaded LC precursor would be a promising formulation for vaginal drug delivery.
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Affiliation(s)
- Chunling Tian
- Department of Pharmacy, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Huang Jie
- Department of Pharmacy, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Mengqiu Xia
- Department of Pharmacy, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Liu Liu
- Department of Pharmacy, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Wenxuan Cao
- Department of Pharmacy, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Jingbao Chen
- Department of Pharmacy, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Chu Xiaoqin
- Department of Pharmacy, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China.,Institute of Pharmaceutics, Anhui Academy of Chinese Medical Sciences, Hefei 230012, China
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Curcumin-loaded Polyethyleneimine and chitosan polymer-based Mucoadhesive liquid crystalline systems as a potential platform in the treatment of cervical Cancer. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115080] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Luz TRSA, de Mesquita LSS, Amaral FMMD, Coutinho DF. Essential oils and their chemical constituents against Aedes aegypti L. (Diptera: Culicidae) larvae. Acta Trop 2020; 212:105705. [PMID: 32956639 DOI: 10.1016/j.actatropica.2020.105705] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 09/08/2020] [Accepted: 09/08/2020] [Indexed: 11/19/2022]
Abstract
This review focused on the toxicity of essential oils and their constituents against Aedes aegypti L. (Diptera, Culicidae) larvae, a key vector of important arboviral diseases, such as dengue, chikungunya, zika, and yellow fever. This review is based on original articles obtained by searching major databases in the last six years. Our literature review shows that 337 essential oils from 225 plant species have been tested for larvicidal bioactivity. More than 60% of these essential oils were considered active (LC50<100 µg/mL). Most species belong to the families Lamiaceae (19.3%), Lauraceae (9.9%), and Myrtaceae (9.4%). The plants studied for their larvicidal activity against A. aegypti were mainly collected in India and Brazil (30 and 20%, respectively) and the parts of the plants most used were the leaves. Less than 10% of essential oils were evaluated for toxicity against non-target organisms and with the aim to demonstrate safe use. The most used plant parts are leaves and the main compounds of essential oils were described. The most active essential oils are rich in sesquiterpene hydrocarbons, oxygenated sesquiterpenes, and monoterpene hydrocarbons. Here, factors affecting bioactivity (chemical composition, plant parts, and harvesting site) of essential oils and their constituents, as well as safety to non-target organisms are discussed. Essential oils have considerable potential against A. aegypti. This review shows that essential oils might be used to control arboviruses, and further studies on safety and formulations for application in the field should be performed.
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Affiliation(s)
- Tássio Rômulo Silva Araújo Luz
- Laboratory of Phytotherapy and Biotechnology in Health (LaFiBioS), Health Sciences Graduate Program, Federal University of Maranhão, São Luís, Maranhão, Brazil.
| | - Ludmilla Santos Silva de Mesquita
- Laboratory of Phytotherapy and Biotechnology in Health (LaFiBioS), Health Sciences Graduate Program, Federal University of Maranhão, São Luís, Maranhão, Brazil
| | - Flavia Maria Mendonça do Amaral
- Laboratory of Phytotherapy and Biotechnology in Health (LaFiBioS), Health Sciences Graduate Program, Federal University of Maranhão, São Luís, Maranhão, Brazil
| | - Denise Fernandes Coutinho
- Laboratory of Phytotherapy and Biotechnology in Health (LaFiBioS), Health Sciences Graduate Program, Federal University of Maranhão, São Luís, Maranhão, Brazil
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Duarte JL, Taira TC, Di Filippo LD, Fonseca-Santos B, Pinto MC, Chorilli M. Novel bioadhesive polycarbophil-based liquid crystal systems containing Melaleuca alternifolia oil as potential repellents against Aedes aegypti. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113626] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Jorge MR, do Amaral Crispim B, Merey FM, Barufatti A, Cabrini I, da Silva Dantas FG, de Oliveira KMP, Kummrow F, Beatriz A, Santos T, Dias C, Ventura J, Nogueira CR, da Silva Gomes R, de Arruda EJ. Sulphonates' mixtures and emulsions obtained from technical cashew nut shell liquid and cardanol for control of Aedes aegypti (Diptera: Culicidae). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:27870-27884. [PMID: 32405938 DOI: 10.1007/s11356-020-08998-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 04/22/2020] [Indexed: 06/11/2023]
Abstract
Aedes aegypti is the main mosquito vector of dengue, zika, chikungunya, and yellow fever diseases. The low effectiveness of vector control options is mainly related to the increased insect's resistance and to the toxicity of products used for non-target organisms. The development of new environmentally friendly and safer products is imperative. Technical cashew nut shell liquid (tCNSL), mostly composed by cardanol (C), is an abundant by-product of the cashew (Anacardium occidentale L.) production chain, available at low cost, and with proven larvicidal activity. However, chemical modifications in both tCNSL and cardanol were required to increase their water solubilities. Our objectives were to synthesise and characterise sustainable, low-cost and easy-to-use multiple function products based on tCNSL, cardanol, and the sulphonates obtained from both; and to evaluate all these products efficacy as surfactants, larvicidal, and antimicrobial agents. None of the sulphonates presented antimicrobial and larvicidal activities. tCNSL and cardanol were successfully emulsified with sodium technical cashew nut shell liquid sulphonate (NatCNSLS, complex mixture of surfactants). The emulsions obtained presented larvicidal activity due to the presence of tCNSL and cardanol in their composition. Our results showed that the tCNSL+NatCNSLS mixture emulsion was an effective larvicide and surfactant multiple function product, with high availability and easy-to-use, which can facilitate its large-scale use in different environments. Graphical abstract.
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Affiliation(s)
- Márcia Ramos Jorge
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12-Unidade II, Cidade Universitária, Dourados, MS, 79804-970, Brazil
| | - Bruno do Amaral Crispim
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12-Unidade II, Cidade Universitária, Dourados, MS, 79804-970, Brazil
| | - Felipe Mendes Merey
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12-Unidade II, Cidade Universitária, Dourados, MS, 79804-970, Brazil
| | - Alexeia Barufatti
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12-Unidade II, Cidade Universitária, Dourados, MS, 79804-970, Brazil
| | - Isaías Cabrini
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12-Unidade II, Cidade Universitária, Dourados, MS, 79804-970, Brazil
| | - Fabiana Gomes da Silva Dantas
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12-Unidade II, Cidade Universitária, Dourados, MS, 79804-970, Brazil
| | - Kelly Mari Pires de Oliveira
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12-Unidade II, Cidade Universitária, Dourados, MS, 79804-970, Brazil
| | - Fábio Kummrow
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo-Campus Diadema, Rua São Nicolau, 210-Centro, Diadema, SP, 09913-030, Brazil
| | - Adilson Beatriz
- Instituto de Química, Universidade Federal de Mato Grosso do Sul, Avenida Senador Filinto Muller, 1555-Cidade Universitária, Campo Grande, MS, 79074-460, Brazil
| | - Tiago Santos
- Instituto de Investigação e Inovação em Saúde/Instituto Nacional de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal
| | - Catarina Dias
- Instituto de Física de Materiais Avançados, Nanotecnologia e Fotónica, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007, Porto, Portugal
| | - João Ventura
- Instituto de Física de Materiais Avançados, Nanotecnologia e Fotónica, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007, Porto, Portugal
| | - Cláudio Rodrigo Nogueira
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12-Unidade II, Cidade Universitária, Dourados, MS, 79804-970, Brazil
| | - Roberto da Silva Gomes
- School of Pharmacy, North Dakota State University, 1401 Albrecht Boulevard, Fargo, ND, 58102, USA
| | - Eduardo José de Arruda
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12-Unidade II, Cidade Universitária, Dourados, MS, 79804-970, Brazil.
- Faculdade de Ciências Exatas e Tecnologia, Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, Km 12-Unidade II|Caixa Postal: 364, Dourados, MS, CEP: 79804-970, Brazil.
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Workman MJ, Gomes B, Weng JL, Ista LK, Jesus CP, David MR, Ramalho-Ortigao M, Genta FA, Matthews SK, Durvasula R, Hurwitz I. Yeast-encapsulated essential oils: a new perspective as an environmentally friendly larvicide. Parasit Vectors 2020; 13:19. [PMID: 31931883 PMCID: PMC6958686 DOI: 10.1186/s13071-019-3870-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 12/29/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Effective mosquito control approaches incorporate both adult and larval stages. For the latter, physical, biological, and chemical control have been used with varying results. Successful control of larvae has been demonstrated using larvicides including insect growth regulators, e.g. the organophosphate temephos, as well as various entomopathogenic microbial species. However, a variety of health and environmental issues are associated with some of these. Laboratory trials of essential oils (EO) have established the larvicidal activity of these substances, but there are currently no commercially available EO-based larvicides. Here we report on the development of a new approach to mosquito larval control using a novel, yeast-based delivery system for EO. METHODS Food-grade orange oil (OO) was encapsulated into yeast cells following an established protocol. To prevent environmental contamination, a proprietary washing strategy was developed to remove excess EO that is adsorbed to the cell exterior during the encapsulation process. The OO-loaded yeast particles were then characterized for OO loading, and tested for efficacy against Aedes aegypti larvae. RESULTS The composition of encapsulated OO extracted from the yeast microparticles was demonstrated not to differ from that of un-encapsulated EO when analyzed by high performance liquid chromatography. After lyophilization, the oil in the larvicide comprised 26-30 percentage weight (wt%), and is consistent with the 60-65% reduction in weight observed after the drying process. Quantitative bioassays carried with Liverpool and Rockefeller Ae. aegypti strains in three different laboratories presented LD50 of 5.1 (95% CI: 4.6-5.6) to 27.6 (95% CI: 26.4-28.8) mg/l, for L1 and L3/L4 mosquito larvae, respectively. LD90 ranged between 18.9 (95% CI: 16.4-21.7) mg/l (L1 larvae) to 76.7 (95% CI: 69.7-84.3) mg/l (L3/L4 larvae). CONCLUSIONS The larvicide based on OO encapsulated in yeast was shown to be highly active (LD50 < 50 mg/l) against all larval stages of Ae. aegypti. These results demonstrate its potential for incorporation in an integrated approach to larval source management of Ae. aegypti. This novel approach can enable development of affordable control strategies that may have significant impact on global health.
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Affiliation(s)
- Michael J Workman
- Center for Global Health, University of New Mexico Health Sciences Center, Albuquerque, NM, USA.,Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM, USA
| | - Bruno Gomes
- Laboratório de Bioquímica e Fisiologia de Insetos, Instituto Oswaldo Cruz (IOC-Fiocruz), Rio de Janeiro, Brazil
| | - Ju-Lin Weng
- Department of Preventive Medicine and Biostatistics, Uniformed Services University, Bethesda, MD, USA
| | - Linnea K Ista
- Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, NM, USA
| | - Camila P Jesus
- Laboratório de Bioquímica e Fisiologia de Insetos, Instituto Oswaldo Cruz (IOC-Fiocruz), Rio de Janeiro, Brazil
| | - Mariana R David
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz (IOC-Fiocruz), Rio de Janeiro, Brazil
| | - Marcelo Ramalho-Ortigao
- Department of Preventive Medicine and Biostatistics, Uniformed Services University, Bethesda, MD, USA
| | - Fernando A Genta
- Laboratório de Bioquímica e Fisiologia de Insetos, Instituto Oswaldo Cruz (IOC-Fiocruz), Rio de Janeiro, Brazil.,Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, Brazil
| | - Scott K Matthews
- Department of General Preventive Medicine, School of Medicine and Dentistry, University of Rochester, Rochester, NY, USA
| | - Ravi Durvasula
- Loyola University Stritch School of Medicine, Maywood, IL, USA
| | - Ivy Hurwitz
- Center for Global Health, University of New Mexico Health Sciences Center, Albuquerque, NM, USA.
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Galvão JG, Cerpe P, Santos DA, Gonsalves JK, Santos AJ, Nunes RK, Lira AA, Alves PB, La Corte R, Blank AF, Silva GF, Cavalcanti SC, Nunes RS. Lippia gracilis essential oil in β-cyclodextrin inclusion complexes: an environmentally safe formulation to control Aedes aegypti larvae. PEST MANAGEMENT SCIENCE 2019; 75:452-459. [PMID: 29998608 DOI: 10.1002/ps.5138] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 06/26/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND One of the most efficient ways to prevent arboviruses, such as dengue fever, yellow fever, chikungunya and Zika, is by controlling their vector, the Aedes aegypti. Because this vector is becoming resistant to most larvicides used, the development of new larvicides should be considered. β-Cyclodextrin (β-CD) complexes have been investigated as an interesting way of enabling the use of essential oils in water as larvicides. This study comprised the development of Lippia gracilis essential oil (LGEO) and β-CD inclusion complexes for control of Ae. aegypti. RESULTS Thermal analysis clearly showed the formation of complexes using kneading and co-evaporation methods. Gas chromatography analysis showed that kneading without co-solvent (KW) gave the highest content (∼ 15%) of the LGEO major component. Moreover, KW showed that the complex had a 50% lethal concentration (LC50 ; 33 ppm) lower than that of pure LGEO (39 ppm); in other words, complexing LGEO with β-CD improved the larvicidal activity. In addition, LGEO complexed with β-CD (KW) was not harmful to non-target organisms at the concentrations needed to control Ae. aegypti larvae. CONCLUSION The inclusion complex with LGEO was a feasible formulation, being economically viable, easy-to-apply and without impact on non-target organisms and, therefore, is a potential alternative larvicide for Ae. aegypti control. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Juliana G Galvão
- Pharmacy Department, Federal University of Sergipe, São Cristóvão, Brazil
| | - Patrícia Cerpe
- Pharmacy Department, Federal University of Sergipe, São Cristóvão, Brazil
| | - Darlisson A Santos
- Chemistry Department, Federal University of Sergipe, São Cristóvão, Brazil
| | | | - Adriana J Santos
- Pharmacy Department, Federal University of Sergipe, São Cristóvão, Brazil
| | - Rafaela Kv Nunes
- Pharmacy Department, Federal University of Sergipe, São Cristóvão, Brazil
| | - Ana Am Lira
- Pharmacy Department, Federal University of Sergipe, São Cristóvão, Brazil
| | - Péricles B Alves
- Chemistry Department, Federal University of Sergipe, São Cristóvão, Brazil
| | - Roseli La Corte
- Morphology Department, Federal University of Sergipe, São Cristóvão, Brazil
| | - Arie F Blank
- Agronomy Department, Federal University of Sergipe, São Cristóvão, Brazil
| | - Gabriel F Silva
- Chemical Engineering Department, Federal University of Sergipe, São Cristóvão, Brazil
| | | | - Rogéria S Nunes
- Pharmacy Department, Federal University of Sergipe, São Cristóvão, Brazil
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Leite FDG, Oshiro Júnior JA, Chiavacci LA, Chiari-Andréo BG. Assessment of an anti-ageing structured cosmetic formulation containing goji berry. BRAZ J PHARM SCI 2019. [DOI: 10.1590/s2175-97902019000217412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Tailoring microstructural, drug release properties, and antichagasic efficacy of biocompatible oil-in-water benznidazol-loaded nanoemulsions. Int J Pharm 2018; 555:36-48. [PMID: 30448310 DOI: 10.1016/j.ijpharm.2018.11.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 11/12/2018] [Accepted: 11/15/2018] [Indexed: 12/25/2022]
Abstract
This study explored the transition of lamellar-type liquid crystal (LLC) to biocompatible oil-in-water nanoemulsions able to modify benznidazole (BNZ) release and target the drug to cells infected with the T. cruzi parasite. Three cosolvents (2methylpyrrolidone [NMP], polyethylene glycol [POL], and propylene glycol [PRO] were tested to induce the transition of anisotropic LLC systems to isotropic nanoemulsions. Mixtures of soy phosphatidylcholine with sodium oleate stabilized the dispersions of medium chain triglyceride in water. Rheological measurements, polarized microscopy, and small angle X-ray scattering demonstrated that there is a phase transition from LLC to desired nanoemulsions. These small and narrow droplet-sized nanocarriers exhibited some advantages and promising features, such as the enhanced BNZ aqueous solubility and slow drug release rate. In vitro cell biocompatibility of formulations was assessed in the Vero E6 and SiHa cell lines. Drug-loaded nanoemulsions inhibited the epimastigote growth of the T. cruzi parasite (IC50 0.208 ± 0.052 μg mL-1) and reduced its infective life form trypomastigote (IC50 0.392 ± 0.107 μg mL-1). The oil-in-water nanoemulsions were demonstrated as promising biocompatible liquid drug delivery systems capable of improving the BNZ trypanocidal activity for the treatment of Chagas disease.
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Temperature and composition effects on the morphology of o/w dispersions based on poly(oxyethylene 20) sorbitan monolaurate and sorbitan monolaurate. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.11.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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Enhanced oil recovery in high temperature carbonates using microemulsions formulated with a new hydrophobic component. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.05.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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