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Ondrejková A, Süli J, Harvanová J, Ondrejka R, Prokeš M. Antioxidative Protection of Squalene Adjuvant and Rabies Vaccine with Adjuvant. Biol Pharm Bull 2017; 40:1029-1034. [PMID: 28428486 DOI: 10.1248/bpb.b17-00026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The authors verified the possibility of antioxidative protection of squalene adjuvant emulsions by the antioxidants α-tocopherol and β-carotene. They determined the influence of β-carotene on the stability and antigenic effectiveness of adjuvant emulsion in combination with rabies vaccine. The composition of the adjuvant emulsions or vaccines was: 2.5% squalene; 6% detergents; 0.5% antioxidant; 91% water phase. The oxidative injury after UV-irradiation was followed by the detection of the peroxide value of the emulsions. The stability of the emulsions was evaluated by the determination of the emulsion's particle size. The level of rabies antibodies (RAB) in mice sera until day 90 after vaccination, was determined by the rapid fluorescent focus inhibition test. In the in vitro system of squalene adjuvant, α-tocopherol acted as a prooxidant, while β-carotene effectively reduced the oxidative injury. The homogenization of the squalene adjuvant during a prolonged period from 8 to 10 min did not change the particle size. The oxidation processes were efficiently reduced by β-carotene during the preparation process and also during the 70-d storage. The vaccine with β-carotene induced a gradual increase in the RAB levels with the highest value on day 28. While the inactivated rabies vaccine with adjuvant without β-carotene developed a rapid formation of RAB, the application of the vaccine with β-carotene induced a slower but more uniform production of RAB. The level of RAB was significantly higher after the application of the vaccine with β-carotene and reached the protective value of 0.5 IU/mL, in contrast to the vaccine without β-carotene.
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Affiliation(s)
- Anna Ondrejková
- Department of Epizootiology and Parasitology, University of Veterinary Medicine and Pharmacy in Košice
| | - Judit Süli
- Department of Chemistry, Biochemistry and Biophysics, University of Veterinary Medicine and Pharmacy in Košice
| | - Jarmila Harvanová
- Department of Chemistry, Biochemistry and Biophysics, University of Veterinary Medicine and Pharmacy in Košice
| | - Róbert Ondrejka
- Department of Epizootiology and Parasitology, University of Veterinary Medicine and Pharmacy in Košice
| | - Marián Prokeš
- Department of Epizootiology and Parasitology, University of Veterinary Medicine and Pharmacy in Košice
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Kaur A, Sharma G, Gupta V, Ratho RK, Katare OP. Enhanced acyclovir delivery using w/o type microemulsion: preclinical assessment of antiviral activity using murine model of zosteriform cutaneous HSV-1 infection. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:346-354. [PMID: 28403666 DOI: 10.1080/21691401.2017.1313262] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The present study was aimed to develop and evaluate a microemulsion-based dermal drug delivery of an antiviral agent, acyclovir. A water-in-oil microemulsion was prepared using isopropyl myristate, Tween 20, Span 20, water and dimethylsulphoxide. It was characterized for drug content, stability, globule size, pH, viscosity and ex vivo permeation through mice skin. In vivo antiviral efficacy of optimized formulation was assessed in female Balb/c mice against herpes simplex virus-I (HSV-I)-induced infection. It was observed that optimized formulation when applied 24-h post-infection could completely inhibit the development of cutaneous herpetic lesions vis-à-vis marketed cream.
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Affiliation(s)
- Amanpreet Kaur
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
| | - Gajanand Sharma
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
| | - Vishal Gupta
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
| | - Radha Kanta Ratho
- b Postgraduate Institute of Medical Education and Research , Chandigarh , India
| | - Om Prakash Katare
- a Division of Pharmaceutics, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University , Chandigarh , India
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Luo X, Zhou Y, Bai L, Liu F, Deng Y, McClements DJ. Fabrication of β-carotene nanoemulsion-based delivery systems using dual-channel microfluidization: Physical and chemical stability. J Colloid Interface Sci 2017; 490:328-335. [DOI: 10.1016/j.jcis.2016.11.057] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/14/2016] [Accepted: 11/15/2016] [Indexed: 10/20/2022]
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54
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Eslami P, Davarpanah L, Vahabzadeh F. Encapsulating role of β-cyclodextrin in formation of pickering water-in-oil-in-water (W 1 /O/W 2 ) double emulsions containing Lactobacillus dellbrueckii. Food Hydrocoll 2017. [DOI: 10.1016/j.foodhyd.2016.10.035] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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55
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Karthik P, Ezhilarasi PN, Anandharamakrishnan C. Challenges associated in stability of food grade nanoemulsions. Crit Rev Food Sci Nutr 2017; 57:1435-1450. [DOI: 10.1080/10408398.2015.1006767] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- P. Karthik
- Department of Food Engineering, CSIR-Central Food Technological Research Institute (CFTRI), Mysore, India
- AcSIR-Academy of Scientific and Innovative Research, CSIR-CFTRI Campus, Mysore, India
| | - P. N. Ezhilarasi
- Department of Food Engineering, CSIR-Central Food Technological Research Institute (CFTRI), Mysore, India
- AcSIR-Academy of Scientific and Innovative Research, CSIR-CFTRI Campus, Mysore, India
| | - C. Anandharamakrishnan
- Department of Food Engineering, CSIR-Central Food Technological Research Institute (CFTRI), Mysore, India
- AcSIR-Academy of Scientific and Innovative Research, CSIR-CFTRI Campus, Mysore, India
- Indian Institute of Crop Processing Technology (IICPT), Thanjavur, Tamil Nadu, India
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56
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Sun P, Zhang N, Hua H, Liang Q, Zhang X, Sun Q, Zhao Y. Low density lipoprotein peptide conjugated submicron emulsions for combating prostate cancer. Biomed Pharmacother 2017; 86:612-619. [DOI: 10.1016/j.biopha.2016.11.103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 11/27/2016] [Indexed: 10/20/2022] Open
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da Rocha-Filho PA, Maruno M, Ferrari M, Topan JF. Liquid Crystal Formation from Sunflower Oil: Long Term Stability Studies. Molecules 2016; 21:molecules21060680. [PMID: 27294894 PMCID: PMC6272883 DOI: 10.3390/molecules21060680] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 04/27/2016] [Accepted: 05/04/2016] [Indexed: 11/16/2022] Open
Abstract
The Brazilian biodiversity offers a multiplicity of raw materials with great potential in cosmetics industry applications. Some vegetable oils and fatty esters increase skin hydration by occlusivity, keeping the skin hydrated and with a shiny appearance. Sunflower (Helianthus annus L.) oil is widely employed in cosmetic emulsions in the form of soaps, creams, moisturizers and skin cleansers due to the presence of polyphenols and its high vitamin E content. Liquid crystals are systems with many applications in both pharmaceutical and cosmetic formulations and are easily detected by microscopy under polarized light due to their birefringence properties. The aim of this research was to develop emulsions from natural sunflower oil for topical uses. Sunflower oil (75.0% w/w) was combined with liquid vaseline (25.0% w/w) employing a natural self-emulsifying base (SEB) derivative. The high temperature of the emulsification process did not influence the antioxidant properties of sunflower oil. Fatty esters were added to cosmetic formulations and extended stability tests were performed to characterize the emulsions. Fatty esters like cetyl palmitate and cetyl ester increase the formation of anisotropic structures. O/W emulsions showed acidic pH values and pseudoplastic behavior. The presence of a lamellar phase was observed after a period of 90 days under different storage conditions.
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Affiliation(s)
- Pedro Alves da Rocha-Filho
- Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n. Bairro Monte Alegre, Ribeirão Preto, SP 14040-903, Brazil.
| | - Mônica Maruno
- Centro Universitário Barão de Mauá, R. Ramos de Azevedo, 423, Jardim Paulista, Ribeirão Preto, SP 14090-180, Brazil.
| | - Márcio Ferrari
- College of Pharmacy, Federal University of Rio Grande do Norte, Rua Gustavo Cordeiro de Farias, s/n, Petrópolis, Natal 59012-570, RN, Brazil.
| | - José Fernando Topan
- Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n. Bairro Monte Alegre, Ribeirão Preto, SP 14040-903, Brazil.
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The Impact of Polyoxyethylene Sorbitan Surfactants in the Microstructure and Rheological Behaviour of Emulsions Made With Melted Fat From Cupuassu (Theobroma grandiflorum). J SURFACTANTS DETERG 2016. [DOI: 10.1007/s11743-016-1820-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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59
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Amaral-Machado L, Xavier-Júnior FH, Rutckeviski R, Morais ARV, Alencar ÉN, Dantas TRF, Cruz AKM, Genre J, da Silva-Junior AA, Pedrosa MFF, Rocha HAO, Egito EST. New Trends on Antineoplastic Therapy Research: Bullfrog (Rana catesbeiana Shaw) Oil Nanostructured Systems. Molecules 2016; 21:E585. [PMID: 27144557 PMCID: PMC6273763 DOI: 10.3390/molecules21050585] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 04/20/2016] [Accepted: 04/26/2016] [Indexed: 11/16/2022] Open
Abstract
Bullfrog oil is a natural product extracted from the Rana catesbeiana Shaw adipose tissue and used in folk medicine for the treatment of several diseases. The aim of this study was to evaluate the extraction process of bullfrog oil, to develop a suitable topical nanoemulsion and to evaluate its efficacy against melanoma cells. The oil samples were obtained by hot and organic solvent extraction processes and were characterized by titration techniques and gas chromatography mass spectrometry (GC-MS). The required hydrophile-lipophile balance and the pseudo-ternary phase diagram (PTPD) were assessed to determine the emulsification ability of the bullfrog oil. The anti-tumoral activity of the samples was assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay for normal fibroblast (3T3) and melanoma (B16F10) cell lines. Both extraction methods produced yielded around 60% and the oil was mainly composed of unsaturated compounds (around 60%). The bullfrog oil nanoemulsion obtained from PTPD presented a droplet size of about 390 nm and polydispersity = 0.05 and a zeta potential of about -25 mV. Both the bullfrog oil itself and its topical nanoemulsion did not show cytotoxicity in 3T3 linage. However, these systems showed growth inhibition in B16F10 cells. Finally, the bullfrog oil presented itself as a candidate for the development of pharmaceutical products free from cytotoxicity and effective for antineoplastic therapy.
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Affiliation(s)
- Lucas Amaral-Machado
- Disperse Systems Laboratory (LaSiD), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petropolis, Natal 59012-570, Brazil.
- Graduated Program in Pharmaceutical Sciences, LaSiD, UFRN, Av. General Gustavo de Cordeiro-SN-Petrópolis, Natal 59012-570, Brazil.
- Graduated Program in Health Sciences, LaSiD, UFRN, Av. General Gustavo de Cordeiro-SN-Petrópolis, Natal 59012-570, Brazil.
| | - Francisco H Xavier-Júnior
- Disperse Systems Laboratory (LaSiD), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petropolis, Natal 59012-570, Brazil.
| | - Renata Rutckeviski
- Disperse Systems Laboratory (LaSiD), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petropolis, Natal 59012-570, Brazil.
| | - Andreza R V Morais
- Disperse Systems Laboratory (LaSiD), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petropolis, Natal 59012-570, Brazil.
| | - Éverton N Alencar
- Disperse Systems Laboratory (LaSiD), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petropolis, Natal 59012-570, Brazil.
| | - Teresa R F Dantas
- Disperse Systems Laboratory (LaSiD), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petropolis, Natal 59012-570, Brazil.
| | - Ana K M Cruz
- Laboratory of Biotechnology of Natural Polymers (BIOPOL), Biochemistry Department, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho-3000-Lagoa Nova, Natal 59064-741, Brazil.
| | - Julieta Genre
- Disperse Systems Laboratory (LaSiD), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petropolis, Natal 59012-570, Brazil.
| | - Arnóbio A da Silva-Junior
- Pharmaceutical Technology & Biotechnology Laboratory (TecBioFar), Pharmacy Department, Federal University of Rio Grande do Norte, Av. General Gustavo de Cordeiro-SN-Petrópolis, Natal-RN 59012-570, Brazil.
| | - Matheus F F Pedrosa
- Pharmaceutical Technology & Biotechnology Laboratory (TecBioFar), Pharmacy Department, Federal University of Rio Grande do Norte, Av. General Gustavo de Cordeiro-SN-Petrópolis, Natal-RN 59012-570, Brazil.
| | - Hugo A O Rocha
- Laboratory of Biotechnology of Natural Polymers (BIOPOL), Biochemistry Department, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho-3000-Lagoa Nova, Natal 59064-741, Brazil.
| | - Eryvaldo S T Egito
- Disperse Systems Laboratory (LaSiD), Pharmacy Department, Federal University of Rio Grande do Norte (UFRN), Av. General Gustavo de Cordeiro-SN-Petropolis, Natal 59012-570, Brazil.
- Graduated Program in Pharmaceutical Sciences, LaSiD, UFRN, Av. General Gustavo de Cordeiro-SN-Petrópolis, Natal 59012-570, Brazil.
- Graduated Program in Health Sciences, LaSiD, UFRN, Av. General Gustavo de Cordeiro-SN-Petrópolis, Natal 59012-570, Brazil.
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60
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Igartúa DE, Calienni MN, Feas DA, Chiaramoni NS, Del Valle Alonso S, Prieto MJ. Development of Nutraceutical Emulsions as Risperidone Delivery Systems: Characterization and Toxicological Studies. J Pharm Sci 2015; 104:4142-4152. [DOI: 10.1002/jps.24636] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 08/14/2015] [Accepted: 08/17/2015] [Indexed: 11/06/2022]
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61
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Lin X, Ma L, Racette SB, Swaney WP, Ostlund RE. Preparation of intravenous cholesterol tracer using current good manufacturing practices. J Lipid Res 2015; 56:2393-8. [PMID: 26416797 DOI: 10.1194/jlr.d061762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Indexed: 11/20/2022] Open
Abstract
Studies of human reverse cholesterol transport require intravenous infusion of cholesterol tracers. Because insoluble lipids may pose risk and because it is desirable to have consistent doses of defined composition available over many months, we investigated the manufacture of cholesterol tracer under current good manufacturing practice (CGMP) conditions appropriate for phase 1 investigation. Cholesterol tracer was prepared by sterile admixture of unlabeled cholesterol or cholesterol-d7 in ethanol with 20% Intralipid(®). The resulting material was filtered through a 1.2 micron particulate filter, stored at 4°C, and tested at time 0, 1.5, 3, 6, and 9 months for sterility, pyrogenicity, autoxidation, and particle size and aggregation. The limiting factor for stability was a rise in thiobarbituric acid-reacting substances of 9.6-fold over 9 months (P < 0.01). The emulsion was stable with the Z-average intensity-weighted mean droplet diameter remaining at 60 nm over 23 months. The zeta potential (a measure of negative surface charge protecting from aggregation) was unchanged at -36.2. Rapid cholesterol pool size was 25.3 ± 1.3 g. Intravenous cholesterol tracer was stable at 4°C for 9 months postproduction. CGMP manufacturing methods can be achieved in the academic setting and need to be considered for critical components of future metabolic studies.
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Affiliation(s)
- Xiaobo Lin
- Division of Endocrinology, Metabolism, and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Lina Ma
- Division of Endocrinology, Metabolism, and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Susan B Racette
- Division of Endocrinology, Metabolism, and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO
| | - William P Swaney
- Biologic Therapeutics Center, Washington University School of Medicine, St. Louis, MO
| | - Richard E Ostlund
- Division of Endocrinology, Metabolism, and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO
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62
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Čalija B, Savić S, Krajišnik D, Daniels R, Vučen S, Marković B, Milić J. pH-sensitive polyelectrolyte films derived from submicron chitosan/Eudragit®L 100-55 complexes: Physicochemical characterization andin vitrodrug release. J Appl Polym Sci 2015. [DOI: 10.1002/app.42583] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Bojan Čalija
- Department of Pharmaceutical Technology and Cosmetology; Faculty of Pharmacy; University of Belgrade; Vojvode Stepe 450 11221 Belgrade Serbia
| | - Snežana Savić
- Department of Pharmaceutical Technology and Cosmetology; Faculty of Pharmacy; University of Belgrade; Vojvode Stepe 450 11221 Belgrade Serbia
| | - Danina Krajišnik
- Department of Pharmaceutical Technology and Cosmetology; Faculty of Pharmacy; University of Belgrade; Vojvode Stepe 450 11221 Belgrade Serbia
| | - Rolf Daniels
- Department of Pharmaceutical Technology; University of Tübingen; Auf der Morgenstelle 8 72076 Tübingen Germany
| | - Sonja Vučen
- School of Pharmacy; University College Cork; College Road Cork Ireland
| | - Bojan Marković
- Department of Pharmaceutical Chemistry; Faculty of Pharmacy; University of Belgrade; Vojvode Stepe 450 11221 Belgrade Serbia
| | - Jela Milić
- Department of Pharmaceutical Technology and Cosmetology; Faculty of Pharmacy; University of Belgrade; Vojvode Stepe 450 11221 Belgrade Serbia
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63
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Gadkari PV, Balaraman M. Extraction of catechins from decaffeinated green tea for development of nanoemulsion using palm oil and sunflower oil based lipid carrier systems. J FOOD ENG 2015. [DOI: 10.1016/j.jfoodeng.2014.09.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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64
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Lalani J, Baradia D, Lalani R, Misra A. Brain targeted intranasal delivery of tramadol: comparative study of microemulsion and nanoemulsion. Pharm Dev Technol 2014; 20:992-1001. [DOI: 10.3109/10837450.2014.959177] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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65
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Bernat N, Cháfer M, Chiralt A, González-Martínez C. Development of a non-dairy probiotic fermented product based on almond milk and inulin. FOOD SCI TECHNOL INT 2014; 21:440-53. [PMID: 25028153 DOI: 10.1177/1082013214543705] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 06/23/2014] [Indexed: 12/21/2022]
Abstract
A new fermented almond "milk" that combined the properties of both almonds and probiotics was considered to cover the current versatile health-promoting foods' demand. Almond milk fermentation with probiotic Lactobacillus reuteri and Streptococcus thermophilus was studied by using a Central Composite design with response surface methodology, and different factors (glucose, fructose, inulin and starters) were optimised to assure high probiotic survivals in the final product. The optimal formulation was physicochemically characterised throughout cold storage (28 days) and both probiotic survivals to in vitro digestion and proteolysis were quantified. Results showed that a high probiotic population (>10(7) cfu/mL) was obtained in the previously optimised almond milk throughout storage time, which correspond to the addition of 0.75 g of glucose/100 mL, 0.75 g of fructose/100 mL, 2 g/100 mL inulin and 6 mL/100 mL inoculum. Glucose was used as the main nutrient and the production of mannitol by L. reuteri was detected. The fermentation process increased the viscosity values, forming a weak gel structure, whose physical properties hardly changed. Probiotic bacteria notably survived (51%) to the in vitro digestion, surely related to the inulin presence, which would add value to the developed product by enhancing the potential health benefits of its consumption.
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Affiliation(s)
- Neus Bernat
- Instituto Universitario de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Spain
| | - Maite Cháfer
- Instituto Universitario de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Spain
| | - Amparo Chiralt
- Instituto Universitario de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Spain
| | - Chelo González-Martínez
- Instituto Universitario de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Spain
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66
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Seixas VC, Serra OA. Stability of sunscreens containing CePO4: proposal for a new inorganic UV filter. Molecules 2014; 19:9907-25. [PMID: 25010465 PMCID: PMC6271536 DOI: 10.3390/molecules19079907] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 06/30/2014] [Accepted: 07/01/2014] [Indexed: 11/16/2022] Open
Abstract
Inorganic UV filters have become attractive because of their role in protecting the skin from the damage caused by continuous exposure to the sun. However, their large refractive index and high photocatalytic activity have led to the development of alternative inorganic materials such as CePO4 for application as UV filters. This compound leaves a low amount of white residue on the skin and is highly stable. The aim of this study was to evaluate the physical and chemical stability of a cosmetic formulation containing ordinary organic UV filters combined with 5% CePO4, and, to compare it with other formulations containing the same vehicle with 5% TiO2 or ZnO as inorganic materials. The rheological behavior and chemical stability of the formulations containing these different UV filters were investigated. Results showed that the formulation containing CePO4 is a promising innovative UV filter due to its low interaction with organic filters, which culminates in longer shelf life when compared with traditional formulations containing ZnO or TiO2 filters. Moreover, the recognized ability of CePO4 to leave a low amount of white residue on the skin combined with great stability, suggests that CePO4 can be used as inorganic filter in high concentrations, affording formulations with high SPF values.
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Affiliation(s)
- Vitor C Seixas
- Department of Chemistry, Faculty of Philosophy, Sciences and Languages of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP 14040-901, Brazil.
| | - Osvaldo A Serra
- Department of Chemistry, Faculty of Philosophy, Sciences and Languages of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP 14040-901, Brazil.
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67
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Peng Y, Li Y. Combined effects of two kinds of essential oils on physical, mechanical and structural properties of chitosan films. Food Hydrocoll 2014. [DOI: 10.1016/j.foodhyd.2013.10.013] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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68
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Seo HJ, Kim JC. 7-Acetoxycoumarin Dimer-Incorporated and Folate-Decorated Liposomes: Photoresponsive Release and in Vitro Targeting and Efficacy. Bioconjug Chem 2014; 25:533-42. [DOI: 10.1021/bc400521r] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hee Jin Seo
- College of Biomedical Science
and Institute of Bioscience and Biotechnology, Kangwon National University, 192-1, Hyoja 2 dong, Chuncheon, Kangwon-do 200-701, Republic of Korea
| | - Jin-Chul Kim
- College of Biomedical Science
and Institute of Bioscience and Biotechnology, Kangwon National University, 192-1, Hyoja 2 dong, Chuncheon, Kangwon-do 200-701, Republic of Korea
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69
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Formulation consideration and characterization of microemulsion drug delivery system for transnasal administration of carbamazepine. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.bfopcu.2013.07.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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70
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Sav AR, Meer TA, Fule RA, Amin PD. Investigational Studies on Highly Purified Fenugreek Gum as Emulsifying Agent. J DISPER SCI TECHNOL 2013. [DOI: 10.1080/01932691.2012.683983] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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71
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Goto PL, Vilela JMC, Andrade MS, Santos ODHD. Preparation and Characterization of Polymeric Nanocapsules Produced by in Situ Polymerization From Nanoemulsions Produced by Direct Emulsification. J DISPER SCI TECHNOL 2013. [DOI: 10.1080/01932691.2012.658321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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72
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Gumiero VC, da Rocha Filho PA. Babassu Nanoemulsions Have Physical and Chemical Stability. J DISPER SCI TECHNOL 2012. [DOI: 10.1080/01932691.2011.625219] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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73
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Cotte JF, Sonnery S, Martial F, Dubayle J, Dalençon F, Haensler J, Adam O. Characterization of surfactants in an oil-in-water emulsion-based vaccine adjuvant using MS and HPLC–MS: Structural analysis and quantification. Int J Pharm 2012; 436:233-9. [DOI: 10.1016/j.ijpharm.2012.06.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 06/05/2012] [Accepted: 06/05/2012] [Indexed: 11/16/2022]
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74
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Hong SK, Ma JY, Kim JC. In Vitro Skin Permeation Enhancement of KIOM-MA-128 by Monoolein Cubosomes. J DISPER SCI TECHNOL 2012. [DOI: 10.1080/01932691.2011.620863] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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75
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Sessa M, Casazza AA, Perego P, Tsao R, Ferrari G, Donsì F. Exploitation of Polyphenolic Extracts from Grape Marc as Natural Antioxidants by Encapsulation in Lipid-Based Nanodelivery Systems. FOOD BIOPROCESS TECH 2012. [DOI: 10.1007/s11947-012-0911-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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76
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77
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Xavier-Júnior F, Silva K, Farias I, Morais A, Alencar E, Araujo I, Oliveira A, Egito E. Prospective study for the development of emulsion systems containing natural oil products. J Drug Deliv Sci Technol 2012. [DOI: 10.1016/s1773-2247(12)50061-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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78
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Sessa M, Tsao R, Liu R, Ferrari G, Donsì F. Evaluation of the stability and antioxidant activity of nanoencapsulated resveratrol during in vitro digestion. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:12352-60. [PMID: 22026647 DOI: 10.1021/jf2031346] [Citation(s) in RCA: 123] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Resveratrol was encapsulated in oil-in-water food-grade nanoemulsions of subcellular size, produced by high-pressure homogenization. Physicochemical stability was evaluated under accelerated aging (high temperature and UV light exposure), as well as during simulated gastrointestinal digestion. Antioxidant activity was assessed at different stages of digestion by chemical assays and by an improved cellular assay, to measure exclusively the residual activity of resveratrol that penetrated inside Caco-2 cells. Results showed that the nanoemulsions based on soy lecithin/sugar esters and Tween 20/glycerol monooleate were the most physically and chemically stable, in terms of mean droplet size (always <180 nm) and resveratrol loading, during both accelerated aging and gastrointestinal digestion. These formulations also exhibited the highest chemical and cellular antioxidant activities, which was comparable to unencapsulated resveratrol dissolved in DMSO, suggesting that nanoencapsulated resveratrol, not being metabolized in the gastrointestinal tract, can be potentially absorbed through the intestinal wall in active form.
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Affiliation(s)
- Mariarenata Sessa
- Department of Industrial Engineering, University of Salerno, via Ponte don Melillo, 84084 Fisciano (SA), Italy
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79
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Pinto CASDO, Lopes PS, Sarruf FD, Polakiewicz B, Kaneko TM, Baby AR, Velasco MVR. Comparative study of the stability of free and modified papain incorporated in topical formulations. BRAZ J PHARM SCI 2011. [DOI: 10.1590/s1984-82502011000400012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Papain is an enzyme used in topical formulations as a proteolytic debriding agent for the treatment of open, extensive wounds and burnings. It is also employed as an enhancer for cutaneous permeation of active compounds, chemical peeling and as a progressive depilatory agent. The stability of formulations containing enzymes is not easy. In this research, papain was modified with polyethylene glycol in order to increase the stability of the formulations. The comparative Normal Stability Testing of the topical formulations containing unmodified and modified papain showed that the modified variety presented with a differentiated profile under the adopted temperature conditions (5.0 ± 1.0 °C; 22.0 ± 2.0 °C; 40.0 ± 2.0 °C). The most suitable condition for non-modified papain were 5.0 ± 1.0 °C and, for modified papain, they were 22.0 ± 2.0 °C. These results confirmed the higher stability of modified papain compared to free papain, as well as its potential to be applied in topical formulations.
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80
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Influence of a mixed ionic/nonionic surfactant system and the emulsification process on the properties of paraffin emulsions. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2011.09.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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81
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Mahdi ES, Noor AM, Sakeena MH, Abdullah GZ, Abdulkarim MF, Sattar MA. Formulation and in vitro release evaluation of newly synthesized palm kernel oil esters-based nanoemulsion delivery system for 30% ethanolic dried extract derived from local Phyllanthus urinaria for skin antiaging. Int J Nanomedicine 2011; 6:2499-512. [PMID: 22072884 PMCID: PMC3205143 DOI: 10.2147/ijn.s22337] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Recently there has been a remarkable surge of interest about natural products and their applications in the cosmetic industry. Topical delivery of antioxidants from natural sources is one of the approaches used to reverse signs of skin aging. The aim of this research was to develop a nanoemulsion cream for topical delivery of 30% ethanolic extract derived from local Phyllanthus urinaria (P. urinaria) for skin antiaging. METHODS Palm kernel oil esters (PKOEs)-based nanoemulsions were loaded with P. urinaria extract using a spontaneous method and characterized with respect to particle size, zeta potential, and rheological properties. The release profile of the extract was evaluated using in vitro Franz diffusion cells from an artificial membrane and the antioxidant activity of the extract released was evaluated using the 2, 2-diphenyl-1-picrylhydrazyl (DPPH) method. RESULTS Formulation F12 consisted of wt/wt, 0.05% P. urinaria extract, 1% cetyl alcohol, 0.5% glyceryl monostearate, 12% PKOEs, and 27% Tween 80/Span 80 (9/1) with a hydrophilic lipophilic balance of 13.9, and a 59.5% phosphate buffer system at pH 7.4. Formulation F36 was comprised of 0.05% P. urinaria extract, 1% cetyl alcohol, 1% glyceryl monostearate, 14% PKOEs, 28% Tween 80/Span 80 (9/1) with a hydrophilic lipophilic balance of 13.9, and 56% phosphate buffer system at pH 7.4 with shear thinning and thixotropy. The droplet size of F12 and F36 was 30.74 nm and 35.71 nm, respectively, and their nanosizes were confirmed by transmission electron microscopy images. Thereafter, 51.30% and 51.02% of the loaded extract was released from F12 and F36 through an artificial cellulose membrane, scavenging 29.89% and 30.05% of DPPH radical activity, respectively. CONCLUSION The P. urinaria extract was successfully incorporated into a PKOEs-based nanoemulsion delivery system. In vitro release of the extract from the formulations showed DPPH radical scavenging activity. These formulations can neutralize reactive oxygen species and counteract oxidative injury induced by ultraviolet radiation and thereby ameliorate skin aging.
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Affiliation(s)
- Elrashid Saleh Mahdi
- Department of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Pulau Pinang, Malaysia.
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82
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Oliveira ECV, Boock KP, Maruno M, Rocha-Filho PA. Accelerated Stability and Moisturizing Capacity of Emulsions Presenting Lamellar Gel Phase Obtained from Brazilian Natural Raw Material. J DISPER SCI TECHNOL 2011. [DOI: 10.1080/01932691.2010.498234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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83
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Sánchez-González L, Chiralt A, González-Martínez C, Cháfer M. Effect of essential oils on properties of film forming emulsions and films based on hydroxypropylmethylcellulose and chitosan. J FOOD ENG 2011. [DOI: 10.1016/j.jfoodeng.2011.02.028] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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84
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Araújo J, Nikolic S, Egea MA, Souto EB, Garcia ML. Nanostructured lipid carriers for triamcinolone acetonide delivery to the posterior segment of the eye. Colloids Surf B Biointerfaces 2011; 88:150-7. [PMID: 21764568 DOI: 10.1016/j.colsurfb.2011.06.025] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2011] [Revised: 06/19/2011] [Accepted: 06/20/2011] [Indexed: 01/31/2023]
Abstract
Triamcinolone acetonide (TA) is a corticosteroid drug currently administered by intravitreal injection for a broad spectrum of inflammatory, edematous and angiogenic ocular diseases. To increase the drug's bioavailability by ocular instillation, TA was encapsulated in nanostructured lipid carriers (NLC), previously optimized by our group using a factorial design approach. In the present paper, nanometric (∼200 nm), unimodal and negatively charged NLC loaded with the fluorescent lipid marker Nile red (NR-NLC) and drug (TA-NLC) were produced by high pressure homogenization. Based on the selected formulations, in vivo tests were carried out by eye-drop instillation of NR-NLC in mice, revealing the systems' ability of delivering lipophilic actives to the posterior segment of the eye via the corneal and non-corneal pathways. Short and long-term stability of TA-NLC was assessed by high performance stability analysis using the Turbiscan®. The results showed a backscattering of less than 1.5% and during a period of 6 months, anticipated the low tendency of these particles for aggregation during shelf life when stored at room temperature.
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Affiliation(s)
- Joana Araújo
- Department of Physical Chemistry, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain
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85
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Application of artificial neural networks in optimizing the fatty alcohol concentration in the formulation of an O/W emulsion. ACTA PHARMACEUTICA 2011; 61:249-56. [PMID: 21684851 DOI: 10.2478/v10007-011-0013-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The purpose of this study was to optimize the concentration of a fatty alcohol, in addition to internal phase, for formulating a stable O/W emulsion, by using artificial neural networks (ANNs). Predictions from ANNs are accurate and allow quantification of the relative importance of the inputs. Furthermore, by varying the network topology and parameters it was possible to obtain output values that were close to experimental values. The ANN model's predictive results and the actual output values were compared. R(2) values depict the percentage of response variability for the model; R(2) value of 0.84 for the model suggested adequate modeling, which is supported by the correlation coefficient value of 0.9445.
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86
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Shukat R, Relkin P. Lipid nanoparticles as vitamin matrix carriers in liquid food systems: On the role of high-pressure homogenisation, droplet size and adsorbed materials. Colloids Surf B Biointerfaces 2011; 86:119-24. [PMID: 21524892 DOI: 10.1016/j.colsurfb.2011.03.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2010] [Revised: 03/15/2011] [Accepted: 03/22/2011] [Indexed: 11/26/2022]
Abstract
Twelve oil-in-water nano-emulsions were prepared using a melt high-pressure homogenisation process (HPH) at 300, 800 or 1200 bar. The resulting emulsions containing 20 wt% palm oil in the absence or presence of α-tocopherol were stabilised by whey proteins alone or in mixture with lecithin. Lipid nanoparticles in these emulsions were characterized for their particle size, surface charge and protein surface concentration (PSC) in relation to their stability against aggregation and coalescence, and to their ability for encapsulation and protection of α-tocopherol against chemical degradation. Increasing HPH values were accompanied by the formation of lipid nanoparticles with decreasing size and PSC, but increasing long-term stability against aggregation and coalescence in parallel with an increase in α-tocopherol degradation (up to 15 wt% for 1200 bar). Presence of α-tocopherol, led to increasing (or decreasing) PSC values with increasing (or decreasing) HPH values for lipid nanoparticles stabilised by proteins alone (or in mixture with lecithins). In addition to these structural properties, the ability for α-tocopherol long-term stability of nanoparticles in emulsions was shown to differ more depending on their adsorbed materials (protein alone, or in mixture with lecithin) than on their particle size values. After 2 months storage, α-tocopherol in emulsions prepared at 300, 800 or 1200 bar was protected against chemical degradation at 79, 77, 67 wt%, respectively, when whey proteins were used alone, instead of 66, 63, 48 wt% when proteins were used in mixture with lecithins. These results indicated the dominant role of adsorbed proteins on the protection of vitamin models by nanoemulsions. They are of a great technological importance for production of lipid nanoparticles presenting a high volume-to-diameter ratio values and consequently high exchange surfaces between the matrix carrier and water and oxygen environmental factors.
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Affiliation(s)
- Rizwan Shukat
- AgroParisTech, UMR 1145 (INRA, AgroParisTech, CNAM), Department of Science and Engineering for Food and Bioproducts, Massy, France
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87
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Chhabra G, Chuttani K, Mishra AK, Pathak K. Design and development of nanoemulsion drug delivery system of amlodipine besilate for improvement of oral bioavailability. Drug Dev Ind Pharm 2011; 37:907-16. [DOI: 10.3109/03639045.2010.550050] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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88
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Santos ODH, Morais JM, Andrade FF, Aguiar TA, Rocha Filho PA. Development of Vegetable Oil Emulsions with Lamellar Liquid-Crystalline Structures. J DISPER SCI TECHNOL 2011. [DOI: 10.1080/01932691003662464] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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89
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Venturini CG, Jäger E, Oliveira CP, Bernardi A, Battastini AM, Guterres SS, Pohlmann AR. Formulation of lipid core nanocapsules. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2010.12.011] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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90
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Cationic nanoemulsion as a delivery system for oligonucleotides targeting malarial topoisomerase II. Int J Pharm 2011; 416:402-9. [PMID: 21291974 DOI: 10.1016/j.ijpharm.2011.01.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 01/20/2011] [Accepted: 01/21/2011] [Indexed: 11/20/2022]
Abstract
A promising strategy based on the antisense oligonucleotides against the Plasmodium falciparum topoisomerase II has been considered using cationic nanoemulsion as oligonucleotide delivery system. Phosphodiester and chemically modified phosphorothioate oligonucleotides bearing negative charges were adsorbed on positively charged emulsion composed of medium chain triglycerides, egg lecithin, 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP), and water, at different +/- charge ratios (positive charges from cationic lipid/negative charges from oligonucleotide): +0.5/-, +2/-, +4/- and +6/-. The physicochemical properties of the complexes were determined, as well as their stability in culture medium. Their interaction with erythrocytes through hemolysis, binding experiments and confocal microscopy were also evaluated. Finally, the in vitro evaluation of parasite growth and reinfection capacity was performed. The overall results showed that antisense oligonucleotides against P. falciparum topoisomerase II gene can be efficiently adsorbed onto a cationic nanoemulsion forming complexes. Whereas unloaded nanoemulsion displayed an hemolytic effect due to the presence of the cationic lipid, this was not the case of loaded nanoemulsion at low +/- ratios. Oligonucleotide-loaded nanoemulsions were found to be located inside the infected erythrocytes, inhibiting efficiently parasite growth (until 80%) and causing a delay in P. falciparum life cycle.
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91
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Physicochemical properties of chitosan-essential oils filmforming dispersions. Effect of homogenization treatments. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.profoo.2011.09.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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92
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Hippalgaonkar K, Majumdar S, Kansara V. Injectable lipid emulsions-advancements, opportunities and challenges. AAPS PharmSciTech 2010; 11:1526-40. [PMID: 20976577 DOI: 10.1208/s12249-010-9526-5] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Accepted: 09/20/2010] [Indexed: 12/15/2022] Open
Abstract
Injectable lipid emulsions, for decades, have been clinically used as an energy source for hospitalized patients by providing essential fatty acids and vitamins. Recent interest in utilizing lipid emulsions for delivering lipid soluble therapeutic agents, intravenously, has been continuously growing due to the biocompatible nature of the lipid-based delivery systems. Advancements in the area of novel lipids (olive oil and fish oil) have opened a new area for future clinical application of lipid-based injectable delivery systems that may provide a better safety profile over traditionally used long- and medium-chain triglycerides to critically ill patients. Formulation components and process parameters play critical role in the success of lipid injectable emulsions as drug delivery vehicles and hence need to be well integrated in the formulation development strategies. Physico-chemical properties of active therapeutic agents significantly impact pharmacokinetics and tissue disposition following intravenous administration of drug-containing lipid emulsion and hence need special attention while selecting such delivery vehicles. In summary, this review provides a broad overview of recent advancements in the field of novel lipids, opportunities for intravenous drug delivery, and challenges associated with injectable lipid emulsions.
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93
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Patel S, Chavhan S, Soni H, Babbar AK, Mathur R, Mishra AK, Sawant K. Brain targeting of risperidone-loaded solid lipid nanoparticles by intranasal route. J Drug Target 2010; 19:468-74. [PMID: 20958095 DOI: 10.3109/1061186x.2010.523787] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Intranasal drug delivery is known to overcome the blood-brain barrier (BBB) for delivery of drugs to brain. The objective of this study was to prepare risperidone (RSP)-loaded solid lipid nanoparticles (RSLNs) and explore the possibility of brain targeting by nose-to-brain delivery. RSLNs were prepared by solvent emulsification-solvent evaporation method and characterized for drug content, particle size and size distribution, zeta potential, and in vitro drug-release study. The pharmacodynamic study of RSLNs, which was performed by paw test using Perspex platform, showed higher hindlimb retraction time (HRT) values as compared with RSP solution (RS) indicating the superiority of RSLNs over the RS for brain targeting. The pharmacokinetics and biodistribution studies in mice showed that brain/blood ratio 1 h post-administration of RSLNs (i.n.) was found to be 1.36 ± 0.06 (nearly 10- and 5-fold higher) as compared with 0.17 ± 0.05 for RS (i.v.) and 0.78 ± 0.07 for RSLNs (i.v.), respectively. Gamma scintigraphy imaging of mice brain following intravenous and intranasal administration confirmed the localization of drug in brain. This finding substantiates the existence of direct nose-to-brain delivery route for nanoparticles administered to the nasal cavity.
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Affiliation(s)
- Sonal Patel
- Drug Delivery Laboratory, Centre of Relevance and Excellence in NDDS, G.H. Patel Building of Pharmacy, Pharmacy Department, The Maharaja Sayajirao University of Baroda, Vadodara, India
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94
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Physical properties of edible chitosan films containing bergamot essential oil and their inhibitory action on Penicillium italicum. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2010.04.047] [Citation(s) in RCA: 215] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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95
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Florence K, Manisha L, Kumar BA, Ankur K, Kumar MA, Ambikanandan M. Intranasal clobazam delivery in the treatment of status epilepticus. J Pharm Sci 2010; 100:692-703. [PMID: 20799366 DOI: 10.1002/jps.22307] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2010] [Revised: 06/16/2010] [Accepted: 06/27/2010] [Indexed: 11/11/2022]
Abstract
The aim of the present investigation was to prepare and characterize clobazam mucoadhesive microemulsion (CZMME) to assess brain drug uptake and protection against pentylenetetrazole (PTZ)-induced convulsions in mice. Clobazam microemulsion (CZME) and CZMME were prepared by titration method and characterized. Brain uptake and pharmacokinetic parameters were calculated from drug concentration in mice brain versus time plots following intranasal administration of radiolabeled CZME and CZMME, intravenous and intranasal administration of radiolabeled clobazam solution. Gamma scintigraphy imaging of rabbit brain following intranasal administration was performed. Formulations were investigated for the onset of seizures in PTZ-challenged mice. Brain targeting efficiency and direct nose-to-brain transport percentage for mucoadhesive microemulsion suggested an improved brain uptake following intranasal administration. The findings were supported by gamma scintigraphy images. Delay in onset of PTZ-induced seizures with CZMME compared with positive control and placebo-treated groups confirmed the improved brain uptake. However, extensive animal studies followed by clinical trials are necessary to develop a product suitable for emergencies of acute seizures in status epilepticus and patients suffering from drug tolerance and hepatic impairment on long-term use in treatment of epilepsy, schizophrenia, and anxiety.
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Affiliation(s)
- Kiruba Florence
- Pharmacy Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, India
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96
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Andrade FF, Santos ODH, Oliveira WP, Rocha-Filho PA. Influence of PEG-12 Dimethicone addition on stability and formation of emulsions containing liquid crystal. Int J Cosmet Sci 2010; 29:211-8. [PMID: 18489351 DOI: 10.1111/j.1467-2494.2007.00374.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Oil/water emulsions, containing liquid crystals, were developed employing Andiroba oil, PEG-12 Dimethicone and Crodafos CES. It was evaluated the influence of silicone surfactants on the emulsions stability and on the formation of liquid crystalline phases and therefore, physicochemical characteristics, such as rheology and zeta potential, were evaluated. Emulsions were prepared by the emulsions phase inversion method. All the formulations presented lamellar liquid crystalline phases. The PEG-12 Dimethicone addition did not change microscopically the liquid crystalline phases. The emulsions containing silicone demonstrated lower viscosity than those without the additive. This is an important feature, as the silicone did not change the rheological profile; however, the addition of silicone still can be used as a viscosity controller. The formulations had their viscosity increased 15 and 150 days after their preparation. This characteristic shows that the emulsions have their organization increased along the storing time. In the analysis of zeta potential, we could verify that all formulations presented negative values between -39.7 and -70.0 mV. Within this range of values, the emulsion physical stability is high (Fig. 10). It was concluded that the addition of PEG-12 Dimethicone kept the liquid crystalline phase of the emulsion obtained with Crodafos CES, influencing in a positive way in the system stability.
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Affiliation(s)
- F F Andrade
- Department of Pharmaceutical Science, University of Sao Paulo, Sao Paulo, Brazil.
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97
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Sánchez-González L, González-Martínez C, Chiralt A, Cháfer M. Physical and antimicrobial properties of chitosan–tea tree essential oil composite films. J FOOD ENG 2010. [DOI: 10.1016/j.jfoodeng.2010.01.026] [Citation(s) in RCA: 189] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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98
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99
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Sharma G, Mishra AK, Mishra P, Misra A. Intranasal cabergoline: pharmacokinetic and pharmacodynamic studies. AAPS PharmSciTech 2009; 10:1321-30. [PMID: 19894122 DOI: 10.1208/s12249-009-9329-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2008] [Accepted: 10/13/2009] [Indexed: 12/18/2022] Open
Abstract
Aims of this investigation were to prepare and characterize cabergoline intranasal microemulsion formulations, determine brain drug delivery through biodistribution using technetium-99m (99mTc) as a tracer, and assess its performance pharmacodynamically in weight control. Cabergoline microemulsions of different compositions were prepared by water titration method and characterized for globule size and zeta potential. Microemulsion with maximum drug solubilization and stability was considered optimal and taken for further studies with or without addition of mucoadhesive agent. Pharmacokinetics of optimized 99mTc-labeled cabergoline formulations and 99mTc-labeled drug solution were studied by estimating radioactivity in brain and blood of albino rats post intranasal, intravenous, and oral administrations. To confirm localization of drug in brain following intranasal, intravenous, and oral administrations, gamma scintigraphy imaging was also performed. To assess weight control performance of formulations, body weight, white adipose tissue mass, serum lipids, leptin, and prolactin were determined before and after 40 days of intranasal administrations of these formulations to Wistar rats. Microemulsions were found to be stable both physically and chemically when stored at various stress conditions. Brain/blood uptake ratios, drug targeting efficiency, and direct drug transport were found to be highest for drug mucoadhesive microemulsion followed by drug microemulsion and drug solution post-intranasal administration compared to intravenous drug microemulsion. Significant (p<0.05) reduction in assessed pharmacodynamic parameters was observed after intranasal administration of mucoadhesive microemulsion against control group. The results of the studies conclusively demonstrate that intranasal microemulsion formulations developed in this investigation are stable and can deliver cabergoline selectively and in higher amounts to the brain compared to both drug administrations as a solution intranasally or microemulsion intravenously. The results also demonstrate reduction in weight, adipose tissue mass, serum lipids, and serum prolactin after intranasal administration of drug microemulsion. Hence, long-term studies in at least two more animal models followed by extensive clinical evaluation can safely result into a product for clinical use.
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100
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Manoi K, Rizvi SS. Emulsification mechanisms and characterizations of cold, gel-like emulsions produced from texturized whey protein concentrate. Food Hydrocoll 2009. [DOI: 10.1016/j.foodhyd.2009.02.011] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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