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Adel MM, Yoseif Salem N, Hussein HM. Enhance the physicochemical properties of the citronella oil -SLNPs to improve the insecticidal activity against Spodoptera littoralis (Boisd) (Lep. Nactuidae). Nat Prod Res 2024:1-17. [PMID: 38635374 DOI: 10.1080/14786419.2024.2342563] [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: 02/01/2024] [Accepted: 04/06/2024] [Indexed: 04/20/2024]
Abstract
The Nano-formulation of citronella essential oil (Cymbopogon nardus (L.) and their mixtures of three adjuvants (Provecta®, Top film®, and PEG600-dioleate) were studied to enhance physico-chemical properties of the Nano-formulation and improve the insecticidal effect against Spodoptera littoralis (Boisd). Characterisation of physicochemical properties of Nano-formulation was studied by calculating droplet size, polydispersity index (PDI), and Zeta-potential parameters. The results showed that the Solid Lipid Nanoparticles (SLNs) mixtures of three adjuvant mixtures had more toxic activity and stability than the Nano-formulation alone. Before storage the acidity, alkalinity (pH), and viscosity exhibited an acidic pH value in the range (4.11-5.34), whereas after three months of storage was recorded high pH, a shift in the pH on storage can indicate the instability of active substances or product under semi field-laboratory conditions. Nano-formulation of the citronella oil mixed with the three adjuvants increased the mortality percentage of S. littoralis larvae.
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Affiliation(s)
- Manal Mohamed Adel
- Pests & Plant Protection Department, National Research Center, Cairo, Egypt
| | - Nagwa Yoseif Salem
- Pests & Plant Protection Department, National Research Center, Cairo, Egypt
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Higuchi CT, Sales CC, Andréo-Filho N, Martins TS, Ferraz HO, Santos YR, Lopes PS, Grice JE, Benson HAE, Leite-Silva VR. Development of a Nanotechnology Matrix-Based Citronella Oil Insect Repellent to Obtain a Prolonged Effect and Evaluation of the Safety and Efficacy. LIFE (BASEL, SWITZERLAND) 2023; 13:life13010141. [PMID: 36676095 PMCID: PMC9866038 DOI: 10.3390/life13010141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/19/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023]
Abstract
Mosquito-borne diseases affect millions of people worldwide each year, and the use of a topically applied insect repellent is an economically viable preventative health practice. The general objective of this work was to encapsulate citronella oil (CO) in a nanostructured lipid carrier (NLC) to formulate a topical repellent with a long duration of efficacy on the skin and a good safety profile based on minimizing skin penetration. In the studied CO, the main chemical constituents of geraniol, citronellal, and citronellol were identified and subsequently used as markers for the in vitro skin permeation testing (IVPT). An optimal NLC encapsulating CO formulation was developed and had an average particle size of 350 nm. The NLC was then formulated in combination with CO at ratios of 2:1, 1:1, and 1:2 CO:NLC-CO as oil-in-water (O/W) emulsions and compared to CO in the same O/W emulsion base (all at 10% CO in the final O/W topical formulation). The markers geraniol, citronellol, and citronellal were detected in all samples tested F1 (10% CO in O/W emulsion) and F3 (10% CO/NLC-CO 1:1 in O/W emulsion). Even the percentages of F3 markers were higher than F1. The recovery of the percentage balance (based on the total remaining on the skin surface, on the skin, and penetrated through the skin to the receptor) of geraniol, citronellol, and citronellal markers for F1 and F3 was 7.70% and 11.96%; 25.51% and 31.89%; and 5.09% and 4.40%, respectively. The nanoparticle lipid solid forms a repellent reservoir on the skin surface, releasing the active ingredients slowly through volatilization, extending the repellent action, and reducing permeation through the skin. It is possible to assume that the remaining 92.30% and 88.03%; 74.49% and 68.11%; and 94.10% and 95.60% of geraniol, citronellol, and citronellal markers of F1 and F3, respectively, were lost to evaporation. In the in vivo efficacy test carried out with the Aedes aegypti mosquito, F3 was the optimal formulation, providing the greatest repellent action compared to free oil in O/W emulsion. Thermal analysis showed that the NLC-CO raised the boiling point of the encapsulated CO compared to the free oil, suggesting that the controlled release of the CO was a possible mechanism for its prolonged effect. We concluded that the nanocarriers developed with CO were stable and provided improved mosquito-repellent efficacy with minimal skin penetration of the CO actives over 24 h. Indeed, regardless of whether the CO was applied as free oil, a 1:1 mixture of CO (pure/free oil) or NLC-CO applied in an O/W emulsion can be considered safe for topical application due to minimal skin penetration.
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Affiliation(s)
- Celio Takashi Higuchi
- Instituto de Ciências Ambientais Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema CEP 09913-030, SP, Brazil
| | - Caroline Cianga Sales
- Instituto de Ciências Ambientais Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema CEP 09913-030, SP, Brazil
| | - Newton Andréo-Filho
- Instituto de Ciências Ambientais Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema CEP 09913-030, SP, Brazil
| | - Tereza Silva Martins
- Instituto de Ciências Ambientais Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema CEP 09913-030, SP, Brazil
| | - Helena Onishi Ferraz
- Instituto de Ciências Ambientais Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema CEP 09913-030, SP, Brazil
| | - Yasmin Rosa Santos
- Instituto de Ciências Ambientais Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema CEP 09913-030, SP, Brazil
| | - Patricia Santos Lopes
- Instituto de Ciências Ambientais Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema CEP 09913-030, SP, Brazil
| | - Jeffrey Ernest Grice
- Therapeutics Research Centre, The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Heather Ann Elizabeth Benson
- UniSA Clinical and Health Sciences, University of South Australia, Basil Hetzel Institute for Translational Health Research, Adelaide, SA 5001, Australia
- Curtin Medical School, Curtin University, Perth, WA 6845, Australia
| | - Vania Rodrigues Leite-Silva
- Instituto de Ciências Ambientais Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema CEP 09913-030, SP, Brazil
- Therapeutics Research Centre, The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, QLD 4102, Australia
- Correspondence:
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Gottardo FM, Biduski B, Franco dos Santos L, Sena dos Santos J, Rodrigues LB, Ruschel dos Santos L. Microencapsulated oregano and cinnamon essential oils as a natural alternative to reduce Listeria monocytogenes in Italian salami. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102146] [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]
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Mane S, Kumari P, Singh A, Taneja NK, Chopra R. Amelioration for oxidative stability and bioavailability of N-3 PUFA enriched microalgae oil: an overview. Crit Rev Food Sci Nutr 2022; 64:2579-2600. [PMID: 36128949 DOI: 10.1080/10408398.2022.2124505] [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: 11/03/2022]
Abstract
Technological improvements in dietary supplements and nutraceuticals have highlighted the significance of bioactive molecules in a healthy lifestyle. Eicosapentaenoic acid and Cervonic acid (DHA), omega-3 polyunsaturated fatty acids seem to be famed for their ability to prevent diverse physiological abnormalities. Selection of appropriate pretreatments and extraction techniques for extraction of lipids from robust microalgae cell wall are very important to retain their stability and bioactivity. Therefore, extraction techniques with optimized extraction parameters offer an excellent approach for obtaining quality oil with a high yield. Oils enriched in omega-3 are particularly imperiled to oxidation which ultimately affects customer acceptance. Bio active encapsulation could be one of the effective approaches to overcome this dilemma. This review paper aims to give insight into the cultivation methods, and downstream processes, various lipid extraction approaches, techniques for retaining oxidative stability, bioavailability and food applications based on extracted or encapsulated omega-3.
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Affiliation(s)
- Sheetal Mane
- Department of Food Engineering, National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonipat, Haryana, India
| | - Purnima Kumari
- Department of Food Engineering, National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonipat, Haryana, India
| | - Anupama Singh
- Department of Food Engineering, National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonipat, Haryana, India
| | - Neetu Kumra Taneja
- Department of Basic and Applied Sciences, National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonipat, Haryana, India
| | - Rajni Chopra
- Department of Food Science and Technology, National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonipat, Haryana, India
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Ogilvie-Battersby JD, Nagarajan R, Mosurkal R, Orbey N. Microencapsulation and controlled release of insect repellent geraniol in gelatin/gum arabic microcapsules. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128494] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ibrahim SS. Polyethylene Glycol Nanocapsules Containing Syzygium aromaticum Essential Oil for the Management of Lesser Grain Borer, Rhyzopertha dominica. FOOD BIOPHYS 2022. [DOI: 10.1007/s11483-022-09738-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ojewumi ME, Obanla OR, Atauba DM. A review on the efficacy of Ocimum gratissimum, Mentha spicata, and Moringa oleifera leaf extracts in repelling mosquito. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2021. [DOI: 10.1186/s43088-021-00176-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
@@@In recent times, repellents and synthetic drugs have been identified as having negative toxicity effects on humans and the environment. Apart from the unfavourable effects on man and livestock caused by these chemicals-based (synthetic) repellents, they are also expensive, non-biodegradable, and no more effective because mosquitoes are getting adapted. With these drawbacks, an eco-friendly plant-based insecticide as a substitute is needed urgently. This paper reviews the extraction and use of essential oil from the leaves of Mentha spicata, Ocimum gratissimum, and Moringa oleifera as mosquito repellent. Carvone, Eugenol, and 9-Octadecenoic acid were discovered to be the most active components in the M. spicata, O. gratissimum, and M. oleifera extracts, respectively, using gas chromatography-mass spectrometry (GC-MS).
Highlights
In recent times, repellents and synthetic drugs have been identified as having negative toxicity effects on humans and the environment. Apart from the unfavorable effects on man and livestock caused by these chemical-based (synthetic) repellents, they are also expensive, non-biodegradable, and no more effective because mosquitoes are getting adapted.
An eco-friendly plant-based insecticide as a substitute is needed urgently.
Diseases transmitted by mosquitoes are still a significant reason for the global mortality rate, with over 700 million individuals experiencing such diseases every year.
With the proper formulation of other repellent forms using their oils, they can replace non-degradable synthetic mosquito repellents since they are eco-friendly. In general, the mosquitocidal activity and percentage protection of plant extract increase with increasing concentration of the extracts in different formulations.
This paper is our original work. We certify that this manuscript has not been published in part or whole elsewhere in any language, and it has not been submitted to any other journal for reviews.
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Abrantes DC, Rogerio CB, de Oliveira JL, Campos EVR, de Araújo DR, Pampana LC, Duarte MJ, Valadares GF, Fraceto LF. Development of a Mosquito Repellent Formulation Based on Nanostructured Lipid Carriers. Front Pharmacol 2021; 12:760682. [PMID: 34707504 PMCID: PMC8542870 DOI: 10.3389/fphar.2021.760682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 09/27/2021] [Indexed: 11/13/2022] Open
Abstract
Arboviral diseases are a threat to global public health systems, with recent data suggesting that around 40% of the world's population is at risk of contracting arboviruses. The use of mosquito repellents is an appropriate strategy to avoid humans coming into contact with vectors transmitting these viruses. However, the cost associated with daily applications of repellents can make their use unfeasible for the low-income populations that most need protection. Therefore, the development of effective formulations offers a way to expand access to this means of individual protection. Consequently, research efforts have focused on formulations with smaller quantities of active agents and sustained release technology, aiming to reduce re-applications, toxicity, and cost. The present study investigates the development of nanostructured lipid carriers (NLCs) loaded with a mixture of the compounds icaridin (synthetic) and geraniol (natural), incorporated in cellulose hydrogel. The NLCs were prepared by the emulsion/solvent evaporation method and were submitted to physicochemical characterization as a function of time (at 0, 15, 30, and 60 days). The prepared system presented an average particle size of 252 ± 5 nm, with encapsulation efficiency of 99% for both of the active compounds. The stability profile revealed that the change of particle size was not significant (p > 0.05), indicating high stability of the system. Rheological characterization of the gels containing NLCs showed that all formulations presented pseudoplastic and thixotropic behavior, providing satisfactory spreadability and long shelf life. Morphological analysis using atomic force microscopy (AFM) revealed the presence of spherical nanoparticles (252 ± 5 nm) in the cellulose gel matrix. Permeation assays showed low fluxes of the active agents through a Strat-M® membrane, with low permeability coefficients, indicating that the repellents would be retained on the surface to which they are applied, rather than permeating the tissue. These findings open perspectives for the use of hybrid formulations consisting of gels containing nanoparticles that incorporate repellents effective against arthropod-borne virus. These systems could potentially provide improvements considering the issues of effectiveness, toxicity, and safety.
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Affiliation(s)
| | | | - Jhones L de Oliveira
- Faculty of Agronomy and Veterinary Sciences, São Paulo State University (UNESP), São Paulo, Brazil
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Chaib S, Benali N, Arhab R, Sadraoui Ajmi I, Bendaoued H, Romdhane M. Preparation of Thymus vulgaris Essential Oil Microcapsules by Complex Coacervation and Direct Emulsion: Synthesis, Characterization and Controlled Release Properties. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2021. [DOI: 10.1007/s13369-020-05223-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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10
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Pardini F, Iregui Á, Faccia P, Amalvy J, González A, Irusta L. Development and characterization of electrosprayed microcaspules of poly ε-caprolactone with citronella oil for mosquito-repellent application. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2021. [DOI: 10.1080/1023666x.2021.1916726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Francisco Pardini
- Grupo (Nano)Materiales Poliméricos - Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), (CCT La Plata CONICET - Universidad Nacional de La Plata), La Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), La Plata, Argentina
- Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales (CITEMA - UTN/CIC), Buenos Aires, Argentina
| | - Álvaro Iregui
- POLYMAT, Department of Polymer Science and Technology, University of the Basque Country UPV-EHU, Donostia, Spain
| | - Paula Faccia
- Grupo (Nano)Materiales Poliméricos - Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), (CCT La Plata CONICET - Universidad Nacional de La Plata), La Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), La Plata, Argentina
| | - Javier Amalvy
- Grupo (Nano)Materiales Poliméricos - Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), (CCT La Plata CONICET - Universidad Nacional de La Plata), La Plata, Argentina
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CICPBA), La Plata, Argentina
- Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales (CITEMA - UTN/CIC), Buenos Aires, Argentina
| | - Alba González
- POLYMAT, Department of Polymer Science and Technology, University of the Basque Country UPV-EHU, Donostia, Spain
| | - Lourdes Irusta
- POLYMAT, Department of Polymer Science and Technology, University of the Basque Country UPV-EHU, Donostia, Spain
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A new SeDeM-SLA expert system for screening of solid carriers for the preparation of solidified liquids: A case of citronella oil. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2021.01.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Mapossa AB, Focke WW, Tewo RK, Androsch R, Kruger T. Mosquito-repellent controlled-release formulations for fighting infectious diseases. Malar J 2021; 20:165. [PMID: 33761967 PMCID: PMC7988998 DOI: 10.1186/s12936-021-03681-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 03/03/2021] [Indexed: 12/18/2022] Open
Abstract
Malaria is a principal cause of illness and death in countries where the disease is endemic. Personal protection against mosquitoes using repellents could be a useful method that can reduce and/or prevent transmission of mosquito-borne diseases. The available repellent products, such as creams, roll-ons, and sprays for personal protection against mosquitoes, lack adequate long-term efficacy. In most cases, they need to be re-applied or replaced frequently. The encapsulation and release of the repellents from several matrices has risen as an alternative process for the development of invention of repellent based systems. The present work reviews various studies about the development and use of repellent controlled-release formulations such as polymer microcapsules, polymer microporous formulations, polymer micelles, nanoemulsions, solid-lipid nanoparticles, liposomes and cyclodextrins as new tools for mosquito-borne malaria control in the outdoor environment. Furthermore, investigation on the mathematical modelling used for the release rate of repellents is discussed in depth by exploring the Higuchi, Korsmeyer-Peppas, Weibull models, as well as the recently developed Mapossa model. Therefore, the studies searched suggest that the final repellents based-product should not only be effective against mosquito vectors of malaria parasites, but also reduce the biting frequency of other mosquitoes transmitting diseases, such as dengue fever, chikungunya, yellow fever and Zika virus. In this way, they will contribute to the improvement in overall public health and social well-being.
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Affiliation(s)
- António B Mapossa
- Department of Chemical Engineering, Institute of Applied Materials , University of Pretoria, Lynnwood Road, Pretoria, South Africa.
- UP Institute for Sustainable Malaria Control & MRC Collaborating Centre for Malaria Research, School of Health Systems and Public Health, University of Pretoria, Private Bag X20, Hatfield, 0028, Pretoria, South Africa.
| | - Walter W Focke
- Department of Chemical Engineering, Institute of Applied Materials , University of Pretoria, Lynnwood Road, Pretoria, South Africa
- UP Institute for Sustainable Malaria Control & MRC Collaborating Centre for Malaria Research, School of Health Systems and Public Health, University of Pretoria, Private Bag X20, Hatfield, 0028, Pretoria, South Africa
| | - Robert K Tewo
- Department of Chemical Engineering, Vaal University of Technology, Private Bag X021, 1911, Vanderbijlpark, South Africa
| | - René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, 06099, Halle/Saale, Germany
| | - Taneshka Kruger
- UP Institute for Sustainable Malaria Control & MRC Collaborating Centre for Malaria Research, School of Health Systems and Public Health, University of Pretoria, Private Bag X20, Hatfield, 0028, Pretoria, South Africa
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Shah SI, Khutoryanskiy VV, Williams AC. A Novel Polymer Insect Repellent Conjugate for Extended Release and Decreased Skin Permeation of Para-Menthane-3,8-Diol. Pharmaceutics 2021; 13:403. [PMID: 33803662 PMCID: PMC8002994 DOI: 10.3390/pharmaceutics13030403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND We developed a novel polymer insect repellent conjugate for extended release and decreased skin permeation of the volatile insect repellent p-menthane-3,8-diol (PMD). METHODS PMD was conjugated with acryloyl chloride via an ester bond to form acryloyl-PMD, which was subsequently copolymerised with acrylic acid at varying molar ratios. Copolymer structures were characterised by 1H NMR and FT-IR, analysed by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), molecular weights and reactivity ratios determined, and repellent loading assessed. RESULTS Using porcine liver esterases, ~45% of the insect repellent was released over five days. Penetration and permeation studies of the copolymer and free repellent using excised, full-thickness porcine ear skin showed no detectable permeation of the copolymer through skin compared to the PMD. Moreover, tape stripping revealed that over 90% of the copolymer remained on the outer surface of the skin, whereas free PMD was within all skin layers. A planarian toxicity fluorescence assay indicated that that the copolymer is unlikely to be a significant irritant when applied topically. CONCLUSIONS this study demonstrates the feasibility of the copolymer approach to develop extended-release insect repellents while reducing skin uptake and transdermal permeation of the small-molecular-weight active ingredient, in order to minimise any adverse effects.
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Affiliation(s)
| | | | - Adrian C. Williams
- Reading School of Pharmacy, University of Reading, Whiteknights, Reading RG6 6AD, UK; (S.I.S.); (V.V.K.)
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Pattnaik M, Mishra HN. Amelioration of the stability of polyunsaturated fatty acids and bioactive enriched vegetable oil: blending, encapsulation, and its application. Crit Rev Food Sci Nutr 2021; 62:6253-6276. [PMID: 33724100 DOI: 10.1080/10408398.2021.1899127] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Lipid oxidation in vegetable oils is the primary concern for food technologists. Modification of oils like hydrogenation, fractionation, inter-esterification, and blending are followed to improve nutritional quality. Blending non-conventional/conventional vegetable oils to obtain a synergistic oil mixture is commonly practiced in the food industry to enhance the nutritional characteristics and stability of oil at an affordable price. Microencapsulation of these oils provides a functional barrier of core and coating material from the adverse environmental conditions, thereby enhancing the oxidative stability, thermo-stability, shelf-life, and biological activity of oils. Microencapsulation of oils has been conducted and commercialized by employing different conventional methods including emulsification, spray-drying, freeze-drying, coacervation, and melt-extrusion compared with new, improved methods like microwave drying, spray chilling, and co-extrusion. The microencapsulated oil emulsion can be either dried to easy-to-handle solids/microcapsules, converted into soft solids, or enclosed in a gel-like matrix, increasing the shelf-life of the liquid oil. The omega-rich microcapsules have a wide application in confectionery, dairy, ice-cream, and pharmaceutical industries. This review summarizes recent developments in blending and microencapsulation technologies in improving the stability and nutritional value of edible oils.
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Affiliation(s)
- Monalisha Pattnaik
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Hari Niwas Mishra
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
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Tian Q, Zhou W, Cai Q, Ma G, Lian G. Concepts, processing, and recent developments in encapsulating essential oils. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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16
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da Silva MRM, Ricci-Júnior E. An approach to natural insect repellent formulations: from basic research to technological development. Acta Trop 2020; 212:105419. [PMID: 32119826 DOI: 10.1016/j.actatropica.2020.105419] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/24/2020] [Accepted: 02/24/2020] [Indexed: 02/06/2023]
Abstract
The incidence of dengue, Zika, chikungunya, yellow fever and malaria cases has increased significantly in the world. To avoid mosquito bites, one of the best strategies is the use of repellents. The interest in using plants as mosquito repellents has increased significantly. In this review, has been performed a bibliographic survey of the plants with repellent activity, evaluate the trends of natural repellent formulations in the scientific literature, those described in patents and commercially available products. Limonene, 1,8-cineole, geraniol, eugenol and citronellal are the active compounds that mostly appear in the essential oils of plants with repellent activity. The type of natural repellent formulation mostly widely marketed is the spray and lotion, respectively. In patents, classic formulation as emulsion was most frequently used, followed by lotions and sprays. Data collected from scientific articles and patents show that microparticles are the most widely used extended release systems nowadays for natural repellents. The citronella essential oil was the one mostly used among the classic commercially available formulations, as well as in the extended release systems described in the literature and patents. Future research must be conducted to the use of nanotechnology in the development of extended release systems containing essential oils with repellent activity produced from natural and biodegradable materials.
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Sharma R, Rao R, Kumar S, Mahant S, Khatkar S. Therapeutic Potential of Citronella Essential Oil: A Review. Curr Drug Discov Technol 2020; 16:330-339. [PMID: 30019646 DOI: 10.2174/1570163815666180718095041] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/30/2017] [Accepted: 07/09/2018] [Indexed: 11/22/2022]
Abstract
Mosquito-borne diseases such as malaria, filariasis, chikunguniya, yellow fever, dengue and Japanese encephalitis are the major cause of remarkable morbidity and mortality in livestock and humans worldwide. Since ancient times, aromatic plants are used for their medicinal value. Essential oils derived from these plants may be used as effective alternatives/adjuvants in pharmaceuticals, biomedical, cosmetic, food, veterinary and agriculture applications. These oils have also gained popularity and interest for prevention and treatment of various disorders. However, several reports on adverse effects including skin eruption, contact artricaria or toxic encephalopathy in children are available for synthetic repellent in the literature. Thus, natural insect repellents like essential oils have been explored recently as an alternative. One such essential oil studied widely, is citronella oil, extracted mainly from Cymbopogon nardus. This essential oil has exhibited good efficacy against mosquitoes. It is a mixture of components including citronellal, citronellol, geraniol as major constituents contributing to various activities (antimicrobial, anthelmintic, antioxidant, anticonvulsant antitrypanosomal and wound healing), besides mosquito repellent action. Citronella essential oil is registered in US EPA (Environmental protection agency) as insect repellent due to its high efficacy, low toxicity and customer satisfaction. However, poor stability in the presence of air and high temperature limits its practical applications. Since specific knowledge on properties and chemical composition of oil is fundamental for its effective application, the present review compiles and discusses biological properties of citronella oil. It also sheds light on various formulations and applications of this essential oil.
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Affiliation(s)
- Ruchi Sharma
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar-125001, India
| | - Rekha Rao
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar-125001, India
| | - Sunil Kumar
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar-125001, India
| | - Sheefali Mahant
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak-124001, India
| | - Sarita Khatkar
- Vaish Institute of Pharmaceutical Education and Research, Rohtak-124001, India
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Adsorption and solidification of peppermint oil on microcrystalline cellulose surface: An experimental and DFT study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127558] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sharma R, Kumar N, Singh SP, Kumar S, Rao R. Ecofriendly Ethyl Cellulose Microsponges of Citronella Oil: Preparation, Characterization and Evaluation of Cytotoxicity and Larvicidal assay. Curr Pharm Biotechnol 2020; 21:341-351. [DOI: 10.2174/1389201020666191120124314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/27/2019] [Accepted: 11/06/2019] [Indexed: 12/21/2022]
Abstract
Background:
Citronella Oil (CO) was used by the Indian army as mosquito repellant to repel
mosquitoes at the beginning of the 20th century and later in 1948, it was registered in the USA for commercial
purposes. Due to its ecofriendly nature, CO possesses immense potential as a mosquito repellent.
Methods:
Citronella oil is a valuable alternative to synthetic mosquito repellents commonly used nowadays.
However, its volatile nature, poor stability in air and high temperature restrict its application. Its
direct application on skin may lead to skin irritation. To surmount the above-mentioned issues, the present
research aims to develop Microsponge (MS), a novel dosage form for enhancing the utility and
safety of CO. Quasi emulsion solvent diffusion method was chosen for crafting MS using ethyl cellulose
with various drug-polymer ratios and characterized. In vitro cytotoxicity evaluation was also carried
out to check the dermal safety of COMS.
Results:
The present results revealed that the size of all prepared formulation lies in the micro range
(20 ± 3 to 41 ± 4 μm), with good payload (42.09± 3.24 to 67.08± 6.43%). The results of FE-SEM depicted
that MS were spherical in shape with porous nature. Cytotoxicity results indicated that COMS
were safe on skin cells, when compared to pure CO. The optimized MS were also assessed for larvicidal
assay against larvae of Anopheles culicifacies.
Conclusion:
The CO micro-formulations were found to possess enhanced stability of this oil. Entrapment
of CO in MS resulted in a better vehicle system in terms of safety, stability and handling benefits
of this oil.
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Affiliation(s)
- Ruchi Sharma
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India
| | - Nitish Kumar
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India
| | - Sompal P. Singh
- National Institute of Malaria Research, Sector-8, Dwarka, Delhi- 110077, India
| | - Sunil Kumar
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India
| | - Rekha Rao
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India
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Mohd Narawi M, Chiu HI, Yong YK, Mohamad Zain NN, Ramachandran MR, Tham CL, Samsurrijal SF, Lim V. Biocompatible Nutmeg Oil-Loaded Nanoemulsion as Phyto-Repellent. Front Pharmacol 2020; 11:214. [PMID: 32256345 PMCID: PMC7090166 DOI: 10.3389/fphar.2020.00214] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 02/14/2020] [Indexed: 01/02/2023] Open
Abstract
Plant essential oils are widely used in perfumes and insect repellent products. However, due to the high volatility of the constituents in essential oils, their efficacy as a repellent product is less effective than that of synthetic compounds. Using a nanoemulsion as a carrier is one way to overcome this disadvantage of essential oils. Nutmeg oil-loaded nanoemulsion (NT) was prepared using a high speed homogenizer and sonicator with varying amounts of surfactant, glycerol, and distilled water. Using a phase diagram, different formulations were tested for their droplet size and insect repellent activity. The nanoemulsion containing 6.25% surfactant and 91.25% glycerol (NT 6) had the highest percentage of protection (87.81%) in terms of repellent activity among the formulations tested for the 8 h duration of the experiment. The droplet size of NT 6 was 217.4 nm, and its polydispersity index (PDI) was 0.248. The zeta potential value was -44.2 mV, and the viscosity was 2.49 Pa.s at pH 5.6. The in vitro release profile was 71.5%. When the cytotoxicity of NT 6 at 400 μg/mL was tested using the MTS assay, cell viability was 97.38%. Physical appearance and stability of the nanoemulsion improved with the addition of glycerol as a co-solvent. In summary, a nutmeg oil-loaded nanoemulsion was successfully formulated and its controlled release of the essential oil showed mosquito repellent activity, thus eliminating the disadvantages of essential oils.
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Affiliation(s)
- Masturah Mohd Narawi
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
| | - Hock Ing Chiu
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
| | - Yoke Keong Yong
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Nur Nadhirah Mohamad Zain
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
| | | | - Chau Ling Tham
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Siti Fatimah Samsurrijal
- Craniofacial and Biomaterial Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
| | - Vuanghao Lim
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
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Formation of wax walled microcapsules via double emulsion using cross membrane emulsification at elevated temperatures. J FOOD ENG 2020. [DOI: 10.1016/j.jfoodeng.2019.109739] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Portilla-Pulido JS, Castillo-Morales RM, Barón-Rodríguez MA, Duque JE, Mendez-Sanchez SC. Design of a Repellent Against Aedes aegypti (Diptera: Culicidae) Using in silico Simulations With AaegOBP1 Protein. JOURNAL OF MEDICAL ENTOMOLOGY 2020; 57:463-476. [PMID: 31670811 PMCID: PMC7530563 DOI: 10.1093/jme/tjz171] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Skin irritation has been reported to be the main adverse effect of excessive use of N,N-diethyl-m-toluamide (DEET) and ethyl 3-acetyl(butyl)amino (IR3535) commercial repellents. Therefore, there is an interest in alternatives of natural origin such as essential oils (EOs) and major compounds, which have repellent effects but have no contraindications. The main purpose of the present study was to identify the repellent effect of selected terpenes on Aedes aegypti Linnaeus, 1762 (Diptera: Culicidae) by in silico analysis based on their affinity with the odorant protein AaegOBP1. The protein-metabolite interactions in 20 terpenes were analyzed using the SwissDock tool. Terpenes presenting the highest affinity compared with commercial repellents were selected to evaluate repellent activity at concentrations 0.1, 10, and 25% against Ae. aegypti. Different periods (0-2, 2-15, 15-60 min) were evaluated with DEET as a positive control. The toxicity of terpenes was verified through Osiris and Molinspiration Cheminformatics Software, and cytotoxicity assays in Vero and HepaRG cells were performed using the MTT method. Two formulations were prepared with polyethylene glycol to evaluate skin long-lasting in vivo assay. The results showed four terpenes: geranyl acetate, nerolidol, α-bisabolol, and nerol, with affinity to AaegOBP1 comparable with DEET and IR3535. Geranyl acetate, nerolidol, and their mixtures showed no cytotoxicity and protection percentages close to 100% during the test at concentrations 10 and 25%. Long-lasting assays with geranyl acetate and nerolidol formulate showed 3 h as maximum protection time with 100% protection percentage. These metabolites and their mixtures are candidates to repellent formulations with times and protection percentages similar to DEET.
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Affiliation(s)
- Johan Sebastián Portilla-Pulido
- Grupo de Investigación en Bioquímica y Microbiología (GIBIM). Escuela de Química, Universidad Industrial de Santander, Bucaramanga A.A., Colombia
- Centro de Investigaciones en Enfermedades Tropicales - CINTROP. Facultad de Salud. Escuela de Medicina, Departamento de Ciencias Básicas, Universidad Industrial de Santander, Guatiguará Technology and Research Park, Piedecuesta, Santander, Colombia
| | - Ruth Mariela Castillo-Morales
- Centro de Investigaciones en Enfermedades Tropicales - CINTROP. Facultad de Salud. Escuela de Medicina, Departamento de Ciencias Básicas, Universidad Industrial de Santander, Guatiguará Technology and Research Park, Piedecuesta, Santander, Colombia
| | | | - Jonny Edward Duque
- Centro de Investigaciones en Enfermedades Tropicales - CINTROP. Facultad de Salud. Escuela de Medicina, Departamento de Ciencias Básicas, Universidad Industrial de Santander, Guatiguará Technology and Research Park, Piedecuesta, Santander, Colombia
| | - Stelia Carolina Mendez-Sanchez
- Grupo de Investigación en Bioquímica y Microbiología (GIBIM). Escuela de Química, Universidad Industrial de Santander, Bucaramanga A.A., Colombia
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Cerceau CI, Barbosa LCA, Alvarenga ES, Maltha CRA, Ismail FMD. 1 H-NMR and GC for detection of adulteration in commercial essential oils of Cymbopogon ssp. PHYTOCHEMICAL ANALYSIS : PCA 2020; 31:88-97. [PMID: 31359561 DOI: 10.1002/pca.2869] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 06/08/2019] [Accepted: 06/09/2019] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Essential oils of Cymbopogon nardus and C. winterianus have fungicidal, bactericidal, and insect repellent activities. In addition, they are components of fragrances, cosmetics, and household products. The growing demand for essential oils has intensified adulteration practices of such products. OBJECTIVES To evaluate the authenticity and quality of citronella commercial essential oils based on chemical composition [by gas chromatography mass spectrometry (GC-MS)] and the contents of its major constituents [by 1 H-NMR, and gas chromatography with a flame ionisation detector using internal standardisation (GC-IS)]. MATERIALS AND METHODS The chemical composition of essential oil was determined by GC-MS. Major components were quantified by 1 H-NMR and the results compared to those obtained by GC-IS. RESULTS The adulteration of oils was verified by GC and 1 H-NMR. In the pure oils, the results obtained by 1 H-NMR were similar to those obtained by GC-IS for most of the oils. However, in adulterated oils, signal overlap prevented the quantification of citronellol and geraniol by NMR. Importantly, due to dilution with dipropylene glycol it was not possible to quantify citronellal using 1 H-NMR. However, for both pure and adulterated oils, GC-IS method proved successful in quantifying notable constituents. CONCLUSION All the methods used proved efficient in detecting adulteration. However, whilst GC-IS provided quantification of constituents of interest, both in pure and adulterated oils, their quantification by NMR was only possible in non-adulterated samples. None of the oils evaluated presented a composition within the threshold established by British Pharmacopoeia quality standards.
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Affiliation(s)
| | - Luiz C A Barbosa
- Department of Chemistry, Universidade Federal de Viçosa, Viçosa, MG, Brazil
- Department of Chemistry, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Elson S Alvarenga
- Department of Chemistry, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Celia R A Maltha
- Department of Chemistry, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Fyaz M D Ismail
- Centre for Natural Products Discovery (CNPD), Medicinal Chemistry & Natural Product Research Group, School of Pharmacy & Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
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Yingngam B, Kacha W, Rungseevijitprapa W, Sudta P, Prasitpuriprecha C, Brantner A. Response surface optimization of spray-dried citronella oil microcapsules with reduced volatility and irritation for cosmetic textile uses. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.07.065] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Carvalho VFM, Salata GC, de Matos JKR, Costa-Fernandez S, Chorilli M, Steiner AA, de Araujo GLB, Silveira ER, Costa-Lotufo LV, Lopes LB. Optimization of composition and obtainment parameters of biocompatible nanoemulsions intended for intraductal administration of piplartine (piperlongumine) and mammary tissue targeting. Int J Pharm 2019; 567:118460. [PMID: 31247278 DOI: 10.1016/j.ijpharm.2019.118460] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 05/27/2019] [Accepted: 06/23/2019] [Indexed: 11/30/2022]
Abstract
As a new strategy for treatment of ductal carcinoma in situ, biocompatible and bioadhesive nanoemulsions for intraductal administration of the cytotoxic agent piplartine (piperlongumine) were optimized in this study. To confer bioadhesive properties, the nanoemulsion was modified with chitosan or hyaluronic acid. Tricaprylin was selected as the nanoemulsion non-polar phase due to its ability to dissolve larger drug amounts compared to isopropyl myristate and monocaprylin. Use of phosphatidylcholine as sole surfactant did not result in a homogeneous nanoemulsion, while its association with polysorbate 80 and glycerol (in a surfactant blend) led to the formation of nanoemulsions with droplet size of 76.5 ± 1.2 nm. Heating the aqueous phase to 50 °C enabled sonication time reduction from 20 to 10 min. Inclusion of either chitosan or hyaluronic acid resulted in nanoemulsions with similar in vitro bioadhesive potential, and comparable ability to prolong mammary tissue retention (to 120 h) in vivo without causing undesirable histological alterations. Piplartine was stable in both nanoemulsions for 60 days; however, the size of loaded NE-HA was maintained at a similar range for longer periods of time, suggesting that this nanoemulsion may be a stronger candidate for intraductal delivery.
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Affiliation(s)
- Vanessa F M Carvalho
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Giovanna C Salata
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Jenyffer K R de Matos
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Sandra Costa-Fernandez
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Marlus Chorilli
- School of Pharmaceutical Sciences at Araraquara, São Paulo State University, Araraquara, SP, Brazil
| | - Alexandre A Steiner
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | | | - Edilberto R Silveira
- Department of Inorganic and Organic Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Leticia V Costa-Lotufo
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Luciana B Lopes
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil.
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Ngamekaue N, Chitprasert P. Effects of beeswax-carboxymethyl cellulose composite coating on shelf-life stability and intestinal delivery of holy basil essential oil-loaded gelatin microcapsules. Int J Biol Macromol 2019; 135:1088-1097. [DOI: 10.1016/j.ijbiomac.2019.06.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 05/30/2019] [Accepted: 06/01/2019] [Indexed: 01/17/2023]
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Abstract
Essential oils are environmentally friendly candidates for antimicrobial smart packaging systems. Encapsulation is needed to reduce their volatility and achieve controlled release. Within this study, the essential oil of Cymbopogon citratus (citronella oil) was microencapsulated and applied in pressure-sensitive antimicrobial functional coatings on papers for secondary packaging. Two microencapsulation methods were used: complex coacervation of gelatine with carboxymethylcellulose or with gum arabic, and in situ polymerization of melamine-formaldehyde prepolymers with a polyacrylic acid modifier. Minimum inhibitory concentrations of citronella oil microcapsules were determined for Bacillus subtilis (B. subtilis), Escherichia coli (B. subtilis), Pseudomonas aeruginosa (P. aeruginosa) and Saccharomyces cerevisiae (S. cerevisiae). Microcapsule suspensions were coated on papers for flexible packaging, 2 and 30 g/m2, and mechanically activated in the weight pulling test. A novel method on agar plates in sealed Petri dishes was developed to evaluate the antimicrobial activity of released citronella vapours on E. coli and S. cerevisiae. The results showed that both microencapsulation methods were successful and resulted in a container type single-core microcapsules. In situ microcapsule suspensions had better paper coating properties and were selected for industrial settings. The antimicrobial activity of 2 g/m2 coatings was not detected; however, the antimicrobial activity of 30 g/m2 partially activated coated papers was confirmed. The product enabled a prolonged use with the gradual release of citronella oil at multiple exposures of functional papers to pressure, e.g., by a human hand during product handling.
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Lis MJ, García Carmona Ó, García Carmona C, Maestá Bezerra F. Inclusion Complexes of Citronella Oil with β-Cyclodextrin for Controlled Release in Biofunctional Textiles. Polymers (Basel) 2018; 10:polym10121324. [PMID: 30961250 PMCID: PMC6401808 DOI: 10.3390/polym10121324] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 11/23/2018] [Accepted: 11/26/2018] [Indexed: 11/16/2022] Open
Abstract
Biofunctional textiles with integrated drug-delivery systems can help in the fight against vector-borne diseases. The use of repellent agents derived from plants and oils is an alternative to DEET (N,N-diethyl-m-methylbenzamide), which has disadvantages that include toxic reactions and skin damage. However, some researchers report that oils can be ineffective due to reasons related to uncontrolled release. In this work, the mechanism of control of citronella oil (OC) complexed with β-cyclodextrin (βCD) on cotton (COT) and polyester (PES) textiles was investigated. The results obtained reveal that finishing cotton and polyester with β-cyclodextrin complexes allows for control of the release mechanism of the drug from the fabric. To assess the complexes formed, optical microscopy, SEM, and FTIR were carried out; the yield of complex formation was obtained by spectroscopy in the ultraviolet region; and controlled release was performed in vitro. Oil complexation with βCD had a yield of 63.79%, and it was observed that the release, which was in seconds, moved to hours when applied to fabrics. The results show that complexes seem to be a promising basis when it comes to immobilizing oils and controlling their release when modified with chemical crosslinking agents.
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Affiliation(s)
- Manuel J Lis
- Institute of Textile Research and Cooperation of Terrassa, Polytechnic University of Catalonia, C/Colom 15, Terrassa, 08222 Barcelona, Spain.
| | - Óscar García Carmona
- Institute of Textile Research and Cooperation of Terrassa, Polytechnic University of Catalonia, C/Colom 15, Terrassa, 08222 Barcelona, Spain.
| | - Carlos García Carmona
- Institute of Textile Research and Cooperation of Terrassa, Polytechnic University of Catalonia, C/Colom 15, Terrassa, 08222 Barcelona, Spain.
| | - Fabricio Maestá Bezerra
- Textile Engineering, Federal University of Technology-Paraná, 635 Marcilio Dias St., Apucarana 86812-460, Parana, Brazil.
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Lis Arias MJ, Coderch L, Martí M, Alonso C, García Carmona O, García Carmona C, Maesta F. Vehiculation of Active Principles as a Way to Create Smart and Biofunctional Textiles. MATERIALS 2018; 11:ma11112152. [PMID: 30388791 PMCID: PMC6266968 DOI: 10.3390/ma11112152] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/23/2018] [Accepted: 10/29/2018] [Indexed: 11/17/2022]
Abstract
In some specific fields of application (e.g., cosmetics, pharmacy), textile substrates need to incorporate sensible molecules (active principles) that can be affected if they are sprayed freely on the surface of fabrics. The effect is not controlled and sometimes this application is consequently neglected. Microencapsulation and functionalization using biocompatible vehicles and polymers has recently been demonstrated as an interesting way to avoid these problems. The use of defined structures (polymers) that protect the active principle allows controlled drug delivery and regulation of the dosing in every specific case. Many authors have studied the use of three different methodologies to incorporate active principles into textile substrates, and assessed their quantitative behavior. Citronella oil, as a natural insect repellent, has been vehicularized with two different protective substances; cyclodextrine (CD), which forms complexes with it, and microcapsules of gelatin-arabic gum. The retention capability of the complexes and microcapsules has been assessed using an in vitro experiment. Structural characteristics have been evaluated using thermogravimetric methods and microscopy. The results show very interesting long-term capability of dosing and promising applications for home use and on clothes in environmental conditions with the need to fight against insects. Ethyl hexyl methoxycinnamate (EHMC) and gallic acid (GA) have both been vehicularized using two liposomic-based structures: Internal wool lipids (IWL) and phosphatidylcholine (PC). They were applied on polyamide and cotton substrates and the delivery assessed. The amount of active principle in the different layers of skin was determined in vitro using a Franz-cell diffusion chamber. The results show many new possibilities for application in skin therapeutics. Biofunctional devices with controlled functionality can be built using textile substrates and vehicles. As has been demonstrated, their behavior can be assessed using in vitro methods that make extrapolation to their final applications possible.
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Affiliation(s)
- Manuel J Lis Arias
- Textile Research Institute of Terrassa (INTEXTER-UPC), 08222 Terrassa, Spain.
| | - Luisa Coderch
- Catalonia Advanced Chemistry Institute (IQAC-CSIC), 08034 Barcelona, Spain.
| | - Meritxell Martí
- Catalonia Advanced Chemistry Institute (IQAC-CSIC), 08034 Barcelona, Spain.
| | - Cristina Alonso
- Catalonia Advanced Chemistry Institute (IQAC-CSIC), 08034 Barcelona, Spain.
| | | | | | - Fabricio Maesta
- Textile Engineering Dept., Federal Technological University of Paraná, Apucarana 86812-460, Brazil.
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Oviposition Deterrent Efficacy and Characteristics of a Botanical Natural Product, Ocimum gratissimum (L.) Oil-Alginate Beads, against Aedes aegypti (L.). ScientificWorldJournal 2018; 2018:3127214. [PMID: 30154681 PMCID: PMC6093078 DOI: 10.1155/2018/3127214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 06/12/2018] [Accepted: 07/19/2018] [Indexed: 11/21/2022] Open
Abstract
This study was aimed at investigating the oviposition deterrent activity of Ocimum gratissimum (L.) essential oil (O. gratissimum oil) and its product, Ocimum gratissimum (L.)- alginate beads (beads), against Aedes aegypti (Ae. aegypti) mosquitoes. Chemical analysis of O. gratissimum oil obtained by hydrodistillation, using gas chromatography-mass spectroscopy techniques, presented eugenol (67.38%) and Z-β-ocimene (14.95 %) as major constituents. Good characteristics of beads were obtained by the orifice-ionic gelation method with calcium chloride as hardening agent and Tween®20 as emulsifier. The beads exhibited a good spherical shape and good hardness and flexibility with an average size of 1.49 ± 1.36 mm. The oil content, the yield percentage, and the entrapping efficiency were also examined. The beads (formulation code, F2) could prolong the essential oil release until the 10th d. This beads provided a remarkably longer oviposition deterrence activity against gravid Ae. aegypti with high percentage for 27 d, whereas free O. gratissimum oil showed a short period of time (8 d) in this activity. The stability study showed the stability of oil content and its compositions in storage condition. These results are very affordable approaches to control the dengue fever.
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Yang YH, Li XZ, Zhang S. Preparation methods and release kinetics of Litsea cubeba essential oil microcapsules. RSC Adv 2018; 8:29980-29987. [PMID: 35547274 PMCID: PMC9085389 DOI: 10.1039/c8ra05769a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 08/06/2018] [Indexed: 01/17/2023] Open
Abstract
In this paper, using β-cyclodextrin (β-CD) as the shell material, LCEO (Litsea cubeba essential oil) microcapsules were prepared by various preparation methods, such as grinding, saturated solution, freeze-drying and spray-drying. The encapsulation yield, encapsulation efficiency, retention rate of the microcapsules and the citral content of the microcapsules were investigated. The surface morphologies of the microcapsules were observed using SEM (Scanning Electronic Microscopy); the entrapment efficiencies of the microcapsules were detected using IR (Infrared Spectrum) analysis; the citral contents of microcapsules were detected by GC (Gas Chromatography) analysis. The highest encapsulation efficiency for the microcapsules was obtained using spray-drying, followed by freeze-drying, saturated aqueous solution and grinding, while the encapsulation yield followed the opposite sequence to the encapsulation efficiency. At a specific storage temperature (15 °C) and humidity (60%), spray-drying had the most satisfactory protective effect on citral in LCEO, followed by freeze-drying and saturated aqueous solution, while the grinding method appeared to provide the worst protective effect. Avrami's model was used to simulate the release rates of the four kinds of microcapsules. The release mechanism parameters of microcapsules prepared by grinding, saturated aqueous solution, freeze-drying and spray-drying were 0.961, 1.096, 1.156 and 0.945, respectively. The release rate constants of microcapsules prepared by grinding, saturated aqueous solution, freeze-drying and spray-drying were 2.53 × 10-2, 2.22 × 10-2, 1.84 × 10-2, and 7.27 × 10-3 d-1, respectively. It was concluded that the release reactions of the microcapsules prepared by grinding or spray-drying lay between the diffusion limiting kinetics and the first-order release kinetics, and the release reactions of the microcapsules prepared by saturated aqueous solution or freeze-drying were larger than the first-order release kinetics.
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Affiliation(s)
- Yan-Hong Yang
- School of Materials Science and Engineering, Central South University of Forestry and Technology Changsha Hunan P. R. China +86-0731-8562-3303 +86-0731-8562-3309
| | - Xiang-Zhou Li
- School of Materials Science and Engineering, Central South University of Forestry and Technology Changsha Hunan P. R. China +86-0731-8562-3303 +86-0731-8562-3309
- State Key Laboratory of Ecological Applied Technology in Forest Area of South China Changsha Hunan P. R. China
| | - Sheng Zhang
- School of Materials Science and Engineering, Central South University of Forestry and Technology Changsha Hunan P. R. China +86-0731-8562-3303 +86-0731-8562-3309
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Manaf MA, Subuki I, Jai J, Raslan R, Mustapa AN. Encapsulation of Volatile Citronella Essential Oil by Coacervation: Efficiency and Release Study. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1757-899x/358/1/012072] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Wang J, Li X, Chen M, Chen Z, Wu H, Zhang P, Yuan T, Yang Z, Hu Y. Fabrication of sustained-release and antibacterial citronella oil-loaded composite microcapsules based on Pickering emulsion templates. J Appl Polym Sci 2018. [DOI: 10.1002/app.46386] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jingguang Wang
- College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Xin Li
- College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Minjie Chen
- College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Zhenming Chen
- College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Hong Wu
- College of Life Sciences; South China Agricultural University; Guangzhou 510642 China
| | - Peng Zhang
- Guangzhou Chaohui Chemical Technology Co., Ltd.; Guangzhou 510640 China
| | - Teng Yuan
- College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Zhuohong Yang
- College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Yang Hu
- College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
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Oliveira JLD, Campos EVR, Pereira AES, Pasquoto T, Lima R, Grillo R, Andrade DJD, Santos FAD, Fraceto LF. Zein Nanoparticles as Eco-Friendly Carrier Systems for Botanical Repellents Aiming Sustainable Agriculture. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:1330-1340. [PMID: 29345934 DOI: 10.1021/acs.jafc.7b05552] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Botanical repellents represent one of the main ways of reducing the use of synthetic pesticides and the contamination of soil and hydric resources. However, the poor stability and rapid degradation of these compounds in the environment hinder their effective application in the field. Zein nanoparticles can be used as eco-friendly carrier systems to protect these substances against premature degradation, provide desirable release characteristics, and reduce toxicity in the environment and to humans. In this study, we describe the preparation and characterization of zein nanoparticles loaded with the main constituents of the essential oil of citronella (geraniol and R-citronellal). The phytotoxicity, cytotoxicity, and insect activity of the nanoparticles toward target and nontarget organisms were also evaluated. The botanical formulations showed high encapsulation efficiency (>90%) in the nanoparticles, good physicochemical stability, and effective protection of the repellents against UV degradation. Cytotoxicity and phytotoxicity assays showed that encapsulation of the botanical repellents decreased their toxicity. Repellent activity tests showed that nanoparticles containing the botanical repellents were highly repellent against the Tetranychus urticae Koch mite. This nanotechnological formulation offers a new option for the effective use of botanical repellents in agriculture, reducing toxicity, protecting against premature degradation, and providing effective pest control.
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Affiliation(s)
- Jhones L de Oliveira
- Institute of Science and Technology, São Paulo State University (UNESP) , Sorocaba, São Paulo 18087-180, Brazil
| | - Estefânia V R Campos
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas , Campinas, São Paulo 13083-862, Brazil
| | - Anderson E S Pereira
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas , Campinas, São Paulo 13083-862, Brazil
| | - Tatiane Pasquoto
- Department of Biotechnology, University of Sorocaba , Sorocaba, São Paulo 18023-000, Brazil
| | - Renata Lima
- Department of Biotechnology, University of Sorocaba , Sorocaba, São Paulo 18023-000, Brazil
| | - Renato Grillo
- Department of Physics and Chemistry, School of Engineering, São Paulo State University (UNESP) , Ilha Solteira, São Paulo 15385-000, Brazil
| | - Daniel Junior de Andrade
- College of Agricultural and Veterinary Sciences, São Paulo State University (UNESP) , Jaboticabal, São Paulo 14884-900, Brazil
| | - Fabiano Aparecido Dos Santos
- College of Agricultural and Veterinary Sciences, São Paulo State University (UNESP) , Jaboticabal, São Paulo 14884-900, Brazil
| | - Leonardo Fernandes Fraceto
- Institute of Science and Technology, São Paulo State University (UNESP) , Sorocaba, São Paulo 18087-180, Brazil
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas , Campinas, São Paulo 13083-862, Brazil
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Tavares M, da Silva MRM, de Oliveira de Siqueira LB, Rodrigues RAS, Bodjolle-d'Almeida L, Dos Santos EP, Ricci-Júnior E. Trends in insect repellent formulations: A review. Int J Pharm 2018; 539:190-209. [PMID: 29410208 DOI: 10.1016/j.ijpharm.2018.01.046] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/23/2018] [Accepted: 01/24/2018] [Indexed: 11/28/2022]
Abstract
The use of natural and synthetic repellents, marketed in different pharmaceutical forms, is growing in the world due to the emerging vector-borne viral diseases as Dengue, Zika, Chikungunya, Yellow Fever and Malaria. The choice of the ideal formulation will depend on a series of factors to be analyzed: type of repellent active (natural or synthetic), pharmaceutical forms (spray, lotion, cream, gel), action time duration (short or long), environment of exposure and the user (adult, pregnant women, children, newborn). The most used repellents are DEET, IR3535 (Ethyl Butylacetylaminopropionate) (EB), Icaridin (Picaridin) and essential oils, each of them presenting advantages and disadvantages. DEET is the oldest and the most powerful repellent available in the market, thus being the reference standard. For this reason, there are many classic formulations available in the market containing the chemical component DEET in spray forms and lotions. However, due to its toxicity, DEET is not recommended for children up to 6 months and pregnant women. DEET has been an option along with other market-shared products as IR3535 and Icaridin (Picaridin), which present less toxicity in their composition. IR3535 is the less toxic and may be prescribed for children over 6 months of age and pregnant women so that they have been the best option because of the lower toxicity levels presented. IR3535 is the one that has the lowest toxicity level among the three options and may be prescribed for children above 6 months of age and pregnant women. Icaridin is as potent as DEET, but less toxic, and has the advantage of having the long-lasting action among the aforementioned repellents. The new formulations have been based on controlled release systems (CRS). The CRSs for repellents comprise polymer micro/nanocapsules, micro/solid lipid nanoparticles, nanoemulsions/microemulsions, liposomes/niosomes, nanostructured hydrogels and cyclodextrins. There are many formulations based on micro and nanocapsules containing DEET and essential oils to increase repellent action time duration and decrease permeation and consequently, systemic toxicity. The development of new formulations for the IR3535 and Icaridin is a research field yet to be explored. The current trend is the use of natural repellent actives such as essential oils, which present low toxicity, do not harm the environment, but present reduced repellent action time due to rapid evaporation after skin application. CRSs have been used as vehicle of natural repellents to improve long-lasting repellent action, reduce skin permeation and systemic effects.
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Affiliation(s)
- Melanie Tavares
- Federal University of Rio de Janeiro, Faculty of Pharmacy, Department of Medicines, Laboratório de Desenvolvimento Galênico (LADEG), Carlos Chagas Filho Avenue, Ilha do Fundão, Rio de Janeiro 21941-590, Brazil.
| | - Márcio Robert Mattos da Silva
- Federal University of Rio de Janeiro, Faculty of Pharmacy, Department of Medicines, Laboratório de Desenvolvimento Galênico (LADEG), Carlos Chagas Filho Avenue, Ilha do Fundão, Rio de Janeiro 21941-590, Brazil
| | - Luciana Betzler de Oliveira de Siqueira
- Federal University of Rio de Janeiro, Faculty of Pharmacy, Department of Medicines, Laboratório de Desenvolvimento Galênico (LADEG), Carlos Chagas Filho Avenue, Ilha do Fundão, Rio de Janeiro 21941-590, Brazil
| | - Raphaela Aparecida Schuenck Rodrigues
- Federal University of Rio de Janeiro, Faculty of Pharmacy, Department of Medicines, Laboratório de Desenvolvimento Galênico (LADEG), Carlos Chagas Filho Avenue, Ilha do Fundão, Rio de Janeiro 21941-590, Brazil
| | | | - Elisabete Pereira Dos Santos
- Federal University of Rio de Janeiro, Faculty of Pharmacy, Department of Medicines, Laboratório de Desenvolvimento Galênico (LADEG), Carlos Chagas Filho Avenue, Ilha do Fundão, Rio de Janeiro 21941-590, Brazil
| | - Eduardo Ricci-Júnior
- Federal University of Rio de Janeiro, Faculty of Pharmacy, Department of Medicines, Laboratório de Desenvolvimento Galênico (LADEG), Carlos Chagas Filho Avenue, Ilha do Fundão, Rio de Janeiro 21941-590, Brazil
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Place LW, Gulcius-Lagoy SM, Lum JS. Preparation and characterization of PHMB-based multifunctional microcapsules. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.07.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Protection against mosquito vectors Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus using a novel insect repellent, ethyl anthranilate. Acta Trop 2017; 174:56-63. [PMID: 28666890 DOI: 10.1016/j.actatropica.2017.06.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 06/16/2017] [Accepted: 06/19/2017] [Indexed: 02/06/2023]
Abstract
Growing concern on the application of synthetic mosquito repellents in the recent years has instigated the identification and development of better alternatives to control different mosquito-borne diseases. In view of above, present investigation evaluates the repellent activity of ethyl anthranilate (EA), a non-toxic, FDA approved volatile food additive against three known mosquito vectors namely, Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus under laboratory conditions following standard protocols. Three concentration levels (2%, 5% and 10% w/v) of EA were tested against all the three selected mosquito species employing K & D module and arm-in-cage method to determine the effective dose (ED50) and complete protection time (CPT), respectively. The repellent activity of EA was further investigated by modified arm-in-cage method to determine the protection over extended spatial ranges against all mosquito species. All behavioural situations were compared with the well-documented repellent N,N-diethylphenyl acetamide (DEPA) as a positive control. The findings demonstrated that EA exhibited significant repellent activity against all the three mosquitoes species. The ED50 values of EA, against Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus were found to be 0.96%, 5.4% and 3.6% w/v, respectively. At the concentration of 10% w/v, it provided CPTs of 60, 60 and 30min, respectively, against Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus mosquitoes. Again in spatial repellency evaluation, EA was found to be extremely effective in repelling all the three tested species of mosquitoes. Ethyl anthranilate provided comparable results to standard repellent DEPA during the study. Results have concluded that the currently evaluated chemical, EA has potential repellent activity against some well established mosquito vectors. The study emphasizes that repellent activity of EA could be exploited for developing effective, eco-friendly, acceptable and safer alternative to the existing harmful repellents for personal protection against different hematophagous mosquito species.
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Peila R, Scordino P, Shanko D, Caldera F, Trotta F, Ferri A. Synthesis and characterization of β-cyclodextrin nanosponges for N,N-diethyl-meta-toluamide complexation and their application on polyester fabrics. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.08.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Gnankiné O, Bassolé IHN. Essential Oils as an Alternative to Pyrethroids' Resistance against Anopheles Species Complex Giles (Diptera: Culicidae). Molecules 2017; 22:E1321. [PMID: 28937642 PMCID: PMC6151604 DOI: 10.3390/molecules22101321] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/01/2017] [Accepted: 08/01/2017] [Indexed: 11/16/2022] Open
Abstract
Widespread resistance of Anopheles sp. populations to pyrethroid insecticides has led to the search for sustainable alternatives in the plant kingdom. Among many botanicals, there is great interest in essential oils and their constituents. Many researchers have explored essential oils (EOs) to determine their toxicity and identify repellent molecules that are effective against Anopheles populations. Essential oils are volatile and fragrant substances with an oily consistency typically produced by plants. They contain a variety of volatile molecules such as terpenes and terpenoids, phenol-derived aromatic components and aliphatic components at quite different concentrations with a significant insecticide potential, essentially as ovicidal, larvicidal, adulticidal, repellency, antifeedant, growth and reproduction inhibitors. The current review provides a summary of chemical composition of EOs, their toxicity at different developmental stages (eggs, larvae and adults), their repellent effects against Anopheles populations, for which there is little information available until now. An overview of antagonist and synergistic phenomena between secondary metabolites, the mode of action as well as microencapsulation technologies are also given in this review. Finally, the potential use of EOs as an alternative to current insecticides has been discussed.
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Affiliation(s)
- Olivier Gnankiné
- Laboratoire d'entomologie fondamentale et appliquée (Lefa), Université Ouaga I Pr Joseph KI-ZERBO, 03 P.O. 7021 Ouagadougou, Burkina Faso.
| | - Imaël Henri Nestor Bassolé
- Laboratoire de biologie moléculaire, d'épidémiologie et de surveillance des bactéries et virus transmis par les aliments (Labesta), Université Ouaga I Pr Joseph KI-ZERBO, 03 P.O. 7021 Ouagadougou, Burkina Faso.
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Bin S, Zhou N, Pan J, Pan F, Wu XF, Zhou ZH. Nano-carrier mediated co-delivery of methyl prednisolone and minocycline for improved post-traumatic spinal cord injury conditions in rats. Drug Dev Ind Pharm 2017; 43:1033-1041. [PMID: 28279078 DOI: 10.1080/03639045.2017.1291669] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE The objective of this study is to investigate the fate of albumin coupled nanoparticulate system over non-targeted drug carrier in the treatment of hemisectioned spinal cord injury (SCI). SIGNIFICANCE Targeted delivery of methyl prednisolone (MP) and minocycline (MC) portrayed improved therapeutic efficacy as compared with non-targeted nanoparticles (NPS). METHODS Albumin coupled, chitosan stabilized, and cationic NPS (albumin-MP + MC - NPS) of poly-(lactide-co-glycolic acid) were prepared using the emulsion solvent evaporation method. Prepared NPS were characterized for drug entrapment efficiency, particle size, poly-dispersity index (PDI), zeta potential, and morphological characteristics. Their evaluation was done based on the pharmaceutical, toxicological, and pharmacological parameters. RESULTS AND DISCUSSION In vitro release of MP + MC from albumin-MP + MC - NPS and MP + MC - NPS was observed to be very controlled for the period of eight days. Cell viability study portrayed non-toxic nature of the developed NPS. Albumin-MP + MC - NPS showed prominent anti-inflammatory potential as compared with non-targeted NPS (MP + MC - NPS) when studied in LPS-induced inflamed astrocytes. Albumin-MP + MC - NPS reduced lesional volume and improved behavioral outcomes significantly in rats with SCI (hemisectioned injury model) when compared with that of MP + MC - NPS. CONCLUSIONS Albumin-coupled NPS carrier offered an effective method of SCI treatment following safe co-administration of MP and MC. The in vitro and in vivo effectiveness of MP + MC was improved tremendously when compared with the effectiveness showed by MP + MC - NPS. That could be attributed to the site specific, controlled release of MP + MC to the inflammatory site.
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Affiliation(s)
- Shen Bin
- a Department of Spine Surgery , Shanghai East Hospital , Shanghai , China
| | - Ningfeng Zhou
- a Department of Spine Surgery , Shanghai East Hospital , Shanghai , China
| | - Jie Pan
- a Department of Spine Surgery , Shanghai East Hospital , Shanghai , China
| | - Fumin Pan
- a Department of Spine Surgery , Shanghai East Hospital , Shanghai , China
| | - Xiao-Feng Wu
- b Department of Orthopaedics , Shanghai General Hospital, Shanghai Jiao Tong University, School of Medicine , Shanghai , China
| | - Zi-Hui Zhou
- a Department of Spine Surgery , Shanghai East Hospital , Shanghai , China
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Politi FAS, Nascimento JD, da Silva AA, Moro IJ, Garcia ML, Guido RVC, Pietro RCLR, Godinho AF, Furlan M. Insecticidal activity of an essential oil of Tagetes patula L. (Asteraceae) on common bed bug Cimex lectularius L. and molecular docking of major compounds at the catalytic site of ClAChE1. Parasitol Res 2016; 116:415-424. [PMID: 27838836 DOI: 10.1007/s00436-016-5305-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 10/19/2016] [Indexed: 12/22/2022]
Abstract
Emerging resistance to insecticides has influenced pharmaceutical research and the search for alternatives to control the common bed bug Cimex lectularius. In this sense, natural products can play a major role. Tagetes patula, popularly known as dwarf marigold, is a plant native to North America with biocide potential. The aim of this work was to evaluate the biological activity of T. patula essential oil (EO) against adult common bed bugs via exposure to dry residues by the Impregnated Paper Disk Test (IPDT) using cypermethrin as a positive control. We selected the enzyme acetylcholinesterase as a target for modeling studies, with the intent of investigating the molecular basis of any biological activity of the EO. Chemical analysis of the EO was performed using gas chromatography coupled to mass spectrometry (GC-MS). Additionally, oral and dermal acute toxicity tests were performed according to Organization for Economic Cooperation and Development (OECD) guidelines. The sulforhodamine B assay (SRB) was performed to verify the cytotoxicity of EO to HaCaT cells. The EO eliminated 100 % of the bed bugs at 100 mg mL-1 with an LC50 value of 15.85 mg mL-1. GC-MS analysis identified α-terpinolene, limonene, piperitenone, and piperitone as major components of the mixture. Molecular modeling studies of these major compounds suggested that they are acetylcholinesterase inhibitors with good steric and electronic complementarity. The in vitro cytotoxicity evaluation revealed a LC50 = 37.06 μg mL-1 and in vivo acute toxicity showed an LC50 >4000 mg kg-1, indicating that the EO presents low risk of toxic side effects in humans. The T. patula essential oil components provide a promising strategy for controlling bed bug populations with low mammalian toxicity. These findings pave the way for further in vivo studies aimed at developing a safe and effective insecticide.
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Affiliation(s)
- Flávio Augusto Sanches Politi
- Department of Organic Chemistry, Institute of Chemistry, University Estadual Paulista-UNESP, Rua Prof. Francisco Degni 55, Quitandinha, Araraquara, SP, CEP 14800-060, Brazil.
| | - Juliana Damieli Nascimento
- Faculdade de Ciências Farmacêuticas, University Estadual Paulista-UNESP, Rod. Araraquara-Jaú Km 01, Araraquara, SP, 14801-902, Brazil
| | - Alexander Alves da Silva
- Department of Organic Chemistry, Institute of Chemistry, University Estadual Paulista-UNESP, Rua Prof. Francisco Degni 55, Quitandinha, Araraquara, SP, CEP 14800-060, Brazil
| | - Isabela Jacob Moro
- Faculdade de Ciências Farmacêuticas, University Estadual Paulista-UNESP, Rod. Araraquara-Jaú Km 01, Araraquara, SP, 14801-902, Brazil
| | - Mariana Lopes Garcia
- Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, 13563-120, Brazil
| | - Rafael Victório Carvalho Guido
- Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, 13563-120, Brazil
| | | | - Antônio Francisco Godinho
- Centro de Assistência Toxicológica (CEATOX), University Estadual Paulista-UNESP, Distrito de Rubião Júnior s/n, Botucatu, SP, 18618-970, Brazil
| | - Maysa Furlan
- Department of Organic Chemistry, Institute of Chemistry, University Estadual Paulista-UNESP, Rua Prof. Francisco Degni 55, Quitandinha, Araraquara, SP, CEP 14800-060, Brazil
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Majeed H, Liu F, Hategekimana J, Sharif HR, Qi J, Ali B, Bian YY, Ma J, Yokoyama W, Zhong F. Bactericidal action mechanism of negatively charged food grade clove oil nanoemulsions. Food Chem 2016; 197:75-83. [DOI: 10.1016/j.foodchem.2015.10.015] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 08/23/2015] [Accepted: 10/05/2015] [Indexed: 10/22/2022]
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Mishra N, Rai VK, Yadav KS, Sinha P, Kanaujia A, Chanda D, Jakhmola A, Saikia D, Yadav NP. Encapsulation of Mentha Oil in Chitosan Polymer Matrix Alleviates Skin Irritation. AAPS PharmSciTech 2016; 17:482-92. [PMID: 26248538 DOI: 10.1208/s12249-015-0378-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 07/22/2015] [Indexed: 11/30/2022] Open
Abstract
Mentha spicata L. var. viridis oil (MVO) is a potent antifungal agent, but its application in the topical treatment is limited due to its irritancy and volatility. It was aimed to develop more efficient, chitosan-incrusted MVO microspheres with reduced volatility and lesser irritancy and to dispense it in the form of ointment. Simple coacervation technique was employed to microencapsulate MVO in chitosan matrix. Morphological properties and polymer cross-linking were characterized by scanning electron microscopy and differential scanning calorimetry, respectively. Optimization was carried out on the basis of entrapment efficiency (EE) using response surface methodology. Well-designed microspheres having smooth surface and spherical shape were observed. EE (81.20%) of optimum batch (R21) was found at 1.62% w/v of cross-linker, 5.4:5 of MVO to chitosan ratio and at 1000 rpm. R21 showed 69.38 ± 1.29% in vitro MVO release in 12 h and 96.92% retention of MVO in microspheres even after 8 week. Ointments of PEG 4000 and PEG 400 comprising MVO (F1) and R21 (F2) were developed separately. F2 showed comparatively broader zone of growth inhibition (13.33 ± 1.76-18.67 ± 0.88 mm) and less irritancy (PII 0.5833, irritation barely perceptible) than that of F1. F2 was able to avoid the direct contact of mild irritant MVO with the skin and to reduce its rapid volatility. Controlled release of MVO helped in lengthening the duration of availability of MVO in agar media and hence improved its therapeutic efficacy. In conclusion, a stable and non-irritant formulation with improved therapeutic potential was developed.
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Moreira ACG, Martins IM, Fernandes I, Barreiro MF, Rodrigues AE. Microencapsulation of red and white thyme oil in poly(lactic-co-glycolic) acid: Assessment of encapsulation efficiency and antimicrobial capacity of the produced microcapsules. CAN J CHEM ENG 2016. [DOI: 10.1002/cjce.22411] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ana C. G. Moreira
- LSRE - Laboratory of Separation and Reaction Engineering, Associate Laboratory LSRE/LCM, Department of Chemical Engineering; Faculty of Engineering of University of Porto; Rua Dr Roberto Frias 4200-465, Porto Portugal
| | - Isabel M. Martins
- LSRE - Laboratory of Separation and Reaction Engineering, Associate Laboratory LSRE/LCM, Department of Chemical Engineering; Faculty of Engineering of University of Porto; Rua Dr Roberto Frias 4200-465, Porto Portugal
| | - Isabel Fernandes
- LSRE - Laboratory of Separation and Reaction Engineering, Associate Laboratory LSRE/LCM, Polytechnic Institute of Bragança; Campus Santa Apolónia Ap 1134, 5301-857; Bragança Portugal
| | - Maria F. Barreiro
- LSRE - Laboratory of Separation and Reaction Engineering, Associate Laboratory LSRE/LCM, Polytechnic Institute of Bragança; Campus Santa Apolónia Ap 1134, 5301-857; Bragança Portugal
| | - Alírio E. Rodrigues
- LSRE - Laboratory of Separation and Reaction Engineering, Associate Laboratory LSRE/LCM, Department of Chemical Engineering; Faculty of Engineering of University of Porto; Rua Dr Roberto Frias 4200-465, Porto Portugal
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47
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Influence of carrier oil type, particle size on in vitro lipid digestion and eugenol release in emulsion and nanoemulsions. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2015.07.009] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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48
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Bakry AM, Abbas S, Ali B, Majeed H, Abouelwafa MY, Mousa A, Liang L. Microencapsulation of Oils: A Comprehensive Review of Benefits, Techniques, and Applications. Compr Rev Food Sci Food Saf 2015; 15:143-182. [DOI: 10.1111/1541-4337.12179] [Citation(s) in RCA: 423] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/15/2015] [Accepted: 09/17/2015] [Indexed: 12/12/2022]
Affiliation(s)
- Amr M. Bakry
- the State Key Laboratory of Food Science and Technology, School of Food Science and Technology; Jiangnan Univ; Wuxi Jiangsu 214122 PR China
- the Dept. of Dairy Science, Faculty of Agriculture; Suez Canal Univ; Ismailia 41522 Egypt
| | - Shabbar Abbas
- the State Key Laboratory of Food Science and Technology, School of Food Science and Technology; Jiangnan Univ; Wuxi Jiangsu 214122 PR China
- the Dept. of Biosciences; COMSATS Inst. of Information Technology; Park Road Islamabad 45550 Pakistan
| | - Barkat Ali
- the State Key Laboratory of Food Science and Technology, School of Food Science and Technology; Jiangnan Univ; Wuxi Jiangsu 214122 PR China
| | - Hamid Majeed
- the State Key Laboratory of Food Science and Technology, School of Food Science and Technology; Jiangnan Univ; Wuxi Jiangsu 214122 PR China
| | - Mohamed Y. Abouelwafa
- the State Key Laboratory of Food Science and Technology, School of Food Science and Technology; Jiangnan Univ; Wuxi Jiangsu 214122 PR China
- the Dept. of Dairy Science, Faculty of Agriculture; Suez Canal Univ; Ismailia 41522 Egypt
| | - Ahmed Mousa
- the State Key Laboratory of Food Science and Technology, School of Food Science and Technology; Jiangnan Univ; Wuxi Jiangsu 214122 PR China
- the Dept. of Dairy Science, Faculty of Environmental Agricultural Science; Suez Canal Univ; 45516 El Arish Egypt
| | - Li Liang
- the State Key Laboratory of Food Science and Technology, School of Food Science and Technology; Jiangnan Univ; Wuxi Jiangsu 214122 PR China
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Abstract
Essential oil contained volatile compounds and they are benefit in many fields such as pharmaceutical, flavor, perfume, food, agriculture, and detergent. However, its inadequate volatile characteristics made it less efficient. Many microencapsulation methods were conducted for varies essential oils. The choice of microencapsulation method very much affected by the material to be encapsulated, wall material and its application. This review paper highlighted on microencapsulation methods of volatiles essential oils and the basic release characteristic of the active ingredients from the capsules.
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50
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Stability of food grade antioxidants formulation to use as preservatives on stored peanut. Lebensm Wiss Technol 2015. [DOI: 10.1016/j.lwt.2015.01.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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