151
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Güney G, Kutlu HM, Genç L. Preparation and characterization of ascorbic acid loaded solid lipid nanoparticles and investigation of their apoptotic effects. Colloids Surf B Biointerfaces 2014; 121:270-80. [PMID: 24985762 DOI: 10.1016/j.colsurfb.2014.05.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Revised: 04/30/2014] [Accepted: 05/05/2014] [Indexed: 12/11/2022]
Abstract
In this paper, ascorbic acid (Vitamin C, AA) known as an antioxidant was successfully incorporated in solid lipid nanoparticles (SLNs) by hot homogenization and efficient delivery of AA to cancer cells. The obtained SLN formulations were characterized by Nano Zetasizer ZS and HPLC with the particle size being less than 250nm. AA-SLNs exhibited sustained release and high entrapment efficiency. According to MTT test results, AA-SLNs showed high cytotoxic activity compared to the free AA against H-Ras 5RP7 cells without damaging NIH/3T3 control cells. These results were supported by the Annexin V-PI and caspase-3 assay. Furthermore, as compared to the AA, AA-SLNs exhibited more efficient cellular uptake, accumulated in the cytoplasm and induced apoptosis which was observed by confocal laser scanning microscopy (CLSM) and transmission electron microscopy (TEM). Thus, the results of this study suggest that SLNs can be a potential nanocarrier system for AA.
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Affiliation(s)
- Gamze Güney
- Faculty of Medicine, Department of Medical Biology, Sakarya University, Sakarya, Turkey.
| | - H Mehtap Kutlu
- Faculty of Science, Department of Biology, Anadolu University, Eskişehir, Turkey
| | - Lütfi Genç
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Anadolu University, Eskişehir, Turkey; Plant, Drug and Scientific Researches Center (AUBIBAM), Anadolu University, Eskişehir, Turkey
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152
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Karn-orachai K, Smith SM, Phunpee S, Treethong A, Puttipipatkhachorn S, Pratontep S, Ruktanonchai UR. The effect of surfactant composition on the chemical and structural properties of nanostructured lipid carriers. J Microencapsul 2014; 31:609-18. [DOI: 10.3109/02652048.2014.911374] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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153
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Patil H, Kulkarni V, Majumdar S, Repka MA. Continuous manufacturing of solid lipid nanoparticles by hot melt extrusion. Int J Pharm 2014; 471:153-6. [PMID: 24853459 DOI: 10.1016/j.ijpharm.2014.05.024] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 05/11/2014] [Accepted: 05/16/2014] [Indexed: 02/05/2023]
Abstract
Solid lipid nanoparticles (SLN) can either be produced by hot homogenization of melted lipids at higher temperatures or by a cold homogenization process. This paper proposes and demonstrates the formulation of SLN for pharmaceutical applications by combining two processes: hot melt extrusion (HME) technology for melt-emulsification and high-pressure homogenization (HPH) for size reduction. This work aimed at developing continuous and scalable processes for SLN by mixing a lipid and aqueous phase containing an emulsifier in the extruder barrel at temperatures above the melting point of the lipid and further reducing the particle size of emulsion by HPH linked to HME in a sequence. The developed novel platform demonstrated better process control and size reduction compared to the conventional process of hot homogenization (batch process). Varying the process parameters enabled the production of SLN below 200 nm (for 60 mg/ml lipid solution at a flow rate of 100ml/min). Among the several process parameters investigated, the lipid concentration, residence time and screw design played major roles in influencing the size of the SLN. This new process demonstrates the potential use of hot melt extrusion technology for continuous and large-scale production of SLN.
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Affiliation(s)
- Hemlata Patil
- Department of Pharmaceutics & Drug Delivery, Pii Center for Pharmaceutical Technology, School of Pharmacy, The University of Mississippi, MS 38677, USA
| | - Vijay Kulkarni
- Department of Pharmaceutics & Drug Delivery, Pii Center for Pharmaceutical Technology, School of Pharmacy, The University of Mississippi, MS 38677, USA
| | - Soumyajit Majumdar
- Department of Pharmaceutics & Drug Delivery, Pii Center for Pharmaceutical Technology, School of Pharmacy, The University of Mississippi, MS 38677, USA
| | - Michael A Repka
- Department of Pharmaceutics & Drug Delivery, Pii Center for Pharmaceutical Technology, School of Pharmacy, The University of Mississippi, MS 38677, USA.
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154
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Kuo YC, Wang LJ. Transferrin-grafted catanionic solid lipid nanoparticles for targeting delivery of saquinavir to the brain. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2013.09.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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155
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Kathe N, Henriksen B, Chauhan H. Physicochemical characterization techniques for solid lipid nanoparticles: principles and limitations. Drug Dev Ind Pharm 2014; 40:1565-75. [DOI: 10.3109/03639045.2014.909840] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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156
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Kuo YC, Hong TY. Delivering etoposide to the brain using catanionic solid lipid nanoparticles with surface 5-HT-moduline. Int J Pharm 2014; 465:132-42. [DOI: 10.1016/j.ijpharm.2014.02.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 01/24/2014] [Accepted: 02/07/2014] [Indexed: 11/25/2022]
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157
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Tan SW, Billa N. Lipid effects on expulsion rate of amphotericin B from solid lipid nanoparticles. AAPS PharmSciTech 2014; 15:287-95. [PMID: 24318197 DOI: 10.1208/s12249-013-0056-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Accepted: 11/15/2013] [Indexed: 11/30/2022] Open
Abstract
We aimed to investigate the effects that natural lipids, theobroma oil (TO) and beeswax (BW), might have on the physical properties of formulated nanoparticles and also the degree of expulsion of encapsulated amphotericin B (AmB) from the nanoparticles during storage. Lecithin and sodium cholate were used as emulsifiers whilst oleic acid (OA) was used to study the influence of the state of orderliness/disorderliness within the matrices of the nanoparticles on the degree of AmB expulsion during storage. BW was found to effect larger z-average diameter compared with TO. Lecithin was found to augment the stability of the nanoparticles imparted by BW and TO during storage. An encapsulation efficiency (%EE) of 59% was recorded when TO was the sole lipid as against 42% from BW. In combination however, the %EE dropped to 39%. When used as sole lipid, TO or BW formed nanoparticles with comparatively higher enthalpies, 21.1 and 23.3 J/g respectively, which subsequently caused significantly higher degree of AmB expulsion, 81 and 83% respectively, whilst only 11.8% was expelled from a binary TO/BW mixture. A tertiary TO/BW/OA mixture registered the lowest enthalpy at 8.07 J/g and expelled 12.6% of AmB but encapsulated only 22% of AmB. In conclusion, nanoparticles made from equal concentrations of TO and BW produced the most desirable properties and worthy of further investigations.
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158
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Development and Evaluation of Novel Self-Nanoemulsifying Drug Delivery Systems Based on a Homolipid from Capra hircus and Its Admixtures with Melon Oil for the Delivery of Indomethacin. JOURNAL OF PHARMACEUTICS 2014; 2014:340486. [PMID: 26556192 PMCID: PMC4590822 DOI: 10.1155/2014/340486] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 02/13/2014] [Indexed: 11/18/2022]
Abstract
In this study, goat fat (Capra hircus) and melon oil were extracted and used to formulate self-nanoemulsifying drug delivery systems (SNEDDS) based on either goat fat alone or its admixture with melon oil by employing escalating ratios of oil(s), surfactant blend (1 : 1 Tween 60 and Tween 80), and cosurfactant (Span 85), with or without carbosil, a glidant, for the delivery of indomethacin. The formulations were encapsulated in hard gelatin capsules and then assessed using isotropicity test, aqueous dilution stability and precipitation propensity, absolute drug content, emulsification time, in vitro drug release, and anti-inflammatory activity. The SNEDDS exhibited low precipitation propensity and excellent stability on copious dilution, as well as high drug release in vitro and in vivo. The inhibition produced by the SNEDDS was comparable to that of indomethacin injection (positive control) for much of the 5 h test period, indicating a high degree of bioavailability of the administered SNEDDS. The absolute drug contents and emulsification times fell within narrow limits. This study has shown that a 1 : 1 ratio of melon oil and goat fat could confer favourable properties with respect to drug release and anti-inflammatory activity on SNEDDS for the delivery of indomethacin, thus encouraging further development of the formulations.
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159
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Choi KO, Aditya N, Ko S. Effect of aqueous pH and electrolyte concentration on structure, stability and flow behavior of non-ionic surfactant based solid lipid nanoparticles. Food Chem 2014; 147:239-44. [DOI: 10.1016/j.foodchem.2013.09.095] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 07/01/2013] [Accepted: 09/16/2013] [Indexed: 10/26/2022]
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160
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Chinaeke EE, Chime SA, Onyishi VI, Attama AA, Okore VC. Formulation development and evaluation of the anti-malaria properties of sustained release artesunate-loaded solid lipid microparticles based on phytolipids. Drug Deliv 2014; 22:652-65. [PMID: 24479677 DOI: 10.3109/10717544.2014.881633] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
UNLABELLED CONTEXTS: Artemisinins and its derivatives are considered the basis in the treatment of Plasmodium falciparum malaria due to their high potency and rapid action. However, they have short half life, low solubility, and poor oral bioavailability, hence the need to formulate sustained release lipid particulate dosage form of these drugs. OBJECTIVES To formulate and evaluate artesunate-loaded solid lipid microparticles (SLMs) based on structured lipid matrices consisting of soybean oil and dika wax. MATERIALS AND METHODS The lipid matrices were characterized by differential scanning calorimetry (DSC), small-angle X-ray diffraction (SAXD), and wide-angle X-ray diffraction (WAXD). The SLMs were prepared by hot melt-homogenization. Time-dependent particle size analysis, time-dependent pH stability studies, encapsulation efficiency (EE%), and in vitro drug release were carried out on the SLMs. In vivo anti-malarial studies were performed using a modified Peter's 4-day suppressive protocol using Plasmodium berghei infected mice. RESULTS AND DISCUSSION Thermograms of the lipid matrices showed modifications in the microstructure of dika wax as a result of inclusion of soybean oil. SAXD and WAXD diffractograms showed that the lipid matrices were found to be non-lamellar. Particle size of SLM increased with time, while the pH was almost constant. The SLMs had maximum EE% of 80.6% and sustained the release of artesunate more than the reference tablet. In vivo pharmacodynamic studies showed that the SLMs had significant (p < 0.05) reduction in parasitaemia compared with reference tablet. CONCLUSION Artesunate-loaded SLMs could be used once daily in the treatment of malaria.
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Affiliation(s)
- E E Chinaeke
- Department of Pharmaceutics, University of Nigeria , Nsukka , Nigeria and
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161
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Chime SA, Onyishi IV, Ugwoke PU, Attama AA. Evaluation of the Properties ofGongronema latifoliumin Phospholipon 90H Based Solid Lipid Microparticles (SLMs): An Antidiabetic Study. J Diet Suppl 2014; 11:7-18. [DOI: 10.3109/19390211.2013.859212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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162
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Cytotoxicity and Genotoxicity of Solid Lipid Nanoparticles. Nanotoxicology 2014. [DOI: 10.1007/978-1-4614-8993-1_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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163
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Abstract
Gelucire® 50/13, a macrogol glyceride, was used as a surfactant for the preparation and stabilization of paliperidone-loaded Capmul® GMS-50K matrix-based solid lipid nanoparticles (SLNs). The homogeneously distributed paliperidone did not affect the crystal structure of the lipid matrix in the SLNs.
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Affiliation(s)
- Sacheen Kumar
- Centre for Material Science and Engineering
- National Institute of Technology Hamirpur
- , India
| | - Jaspreet K. Randhawa
- Centre for Material Science and Engineering
- National Institute of Technology Hamirpur
- , India
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164
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Intestinal Lymphatic Delivery of Praziquantel by Solid Lipid Nanoparticles: Formulation Design,In VitroandIn VivoStudies. JOURNAL OF NANOTECHNOLOGY 2014. [DOI: 10.1155/2014/351693] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The aim of the present work was to design and develop Praziquantal (PZQ) loaded solid lipid nanoparticles (PZQ-SLN) to improve the oral bioavailability by targeting intestinal lymphatic system. PZQ is practically insoluble in water and exhibits extensive hepatic first-pass metabolism. PZQ SLN were composed of triglycerides, lecithin and various aqueous surfactants; were optimized using hot homogenization followed by ultrasonication method. The optimized SLN had particle size of123±3.41 nm, EE of86.6±5.72%. The drug release of PZQ-SLN showed initial burst release followed by the sustained release. Inspite of zeta potential being around −10 mV, the optimized SLN were stable at storage conditions (5±3°C and25±2°C/60±5% RH) for six months. TEM study confirmed the almost spherical shape similar to the control formulations. Solid state characterization using differential scanning calorimeter (DSC) and powder X-ray diffraction (PXRD) analysis confirmed the homogeneous distribution of PZQ within the lipid matrix. The 5.81-fold increase inAUC0→∞, after intraduodenal administration of PZQ-SLN in rats treated with saline in comparison to rats treated with cycloheximide (a blocker of intestinal lymphatic pathway), confirmed its intestinal lymphatic delivery. The experimental results indicate that SLN may offer a promising strategy for improving the therapeutic efficacy and reducing the dose.
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165
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Genç L, Kutlu HM, Güney G. Vitamin B12-loaded solid lipid nanoparticles as a drug carrier in cancer therapy. Pharm Dev Technol 2013; 20:337-44. [DOI: 10.3109/10837450.2013.867447] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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166
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Bikkad ML, Nathani AH, Mandlik SK, Shrotriya SN, Ranpise NS. Halobetasol propionate-loaded solid lipid nanoparticles (SLN) for skin targeting by topical delivery. J Liposome Res 2013; 24:113-23. [DOI: 10.3109/08982104.2013.843192] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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167
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Zhang L, Hayes DG, Chen G, Zhong Q. Transparent dispersions of milk-fat-based nanostructured lipid carriers for delivery of β-carotene. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:9435-43. [PMID: 24007298 DOI: 10.1021/jf403512c] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nanostructured lipid carriers (NLCs) are possible vehicles to incorporate lipophilic bioactive compounds in transparent functional beverages. In this work, anhydrous milk fat (AMF) and Tween 80 were used to prepare NLCs using a phase-inversion temperature method, and β-carotene was used as a model lipophilic bioactive compound. The phase-inversion temperature decreased from >95 to 73 °C, when NaCl increased from 0 to 1.0 M in the aqueous phase. At 0.8 M NaCl and phase inversion by heating at 90 °C for 30 min, transparent NLC dispersions were observed at AMF levels higher than 10% (w/w), corresponding to particles smaller than ~25 nm. The NLC dispersions were dilution- and dialysis-stable and maintained turbidity and particle size during 90 days of storage at room temperature. The degradation of β-carotene encapsulated in NLCs was much reduced when compared to its encapsulation in the soybean-oil-based nanoemulsion.
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Affiliation(s)
- Linhan Zhang
- Department of Food Science and Technology, ‡Department of Biosystems Engineering and Soil Science, and §Department of Nutrition, University of Tennessee , Knoxville, Tennessee 37996, United States
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168
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169
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Mohamed RA, Abass HA, Attia MA, Heikal OA. Formulation and evaluation of metoclopramide solid lipid nanoparticles for rectal suppository. J Pharm Pharmacol 2013; 65:1607-21. [DOI: 10.1111/jphp.12136] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 07/23/2013] [Indexed: 11/26/2022]
Abstract
Abstract
Objectives
The purpose of this study was to formulate and characterize metoclopramide solid lipid nanoparticles (MCP-SLNs) and incorporating it into suppository bases for treatment of nausea and vomiting, produced with chemotherapeutic agents, using one dose per day.
Methods
MCP-SLNs was prepared using high shear homogenization (hot homogenization) technique using different surfactants (tween 80, poloxamer 407, poloxamer 188 and cremophore) in two different concentrations (2.5% and 5%) then solid lipid nanoparticle (SLN), whose release percentage above 50%, was incorporated into suppository for treatment of nausea and vomiting. The prepared SLN and suppositories were then evaluated and characterized.
Key findings
Formulation of poloxamer 407 with compritol and drug (F9) produced highest in-vitro % release (80%). Transmission electron microscopy showed that SLN had round and spherical shape in form of solid dispersion or drug-enriched core. Particle size analysis of SLN showed a size range of 24.99–396.8 nm. Negative zeta potential proves complete drug entrapment. In-vivo study of MCP-SLN suppositories produced the same %GE as the market metoclopramide (MCP) suppository (Primperan) with sustained release effect.
Conclusion
MCP-SLN suppositories (formula F) can reverse decrease in %GE because of emesis with sustained release effect. So it succeeded to be an alternative to MCP suppositories with no multiple dosing.
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Affiliation(s)
- Radwa A Mohamed
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biotechnology, German University in Cairo, GUC, Cairo, Egypt
| | - Haidy A Abass
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biotechnology, German University in Cairo, GUC, Cairo, Egypt
| | - Mohamed A Attia
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assuit, Egypt
| | - Ola A Heikal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Biotechnology, German University in Cairo, GUC, Cairo, Egypt
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170
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Siissalo S, de Waard H, de Jager MH, Hayeshi R, Frijlink HW, Hinrichs WL, Dinter-Heidorn H, van Dam A, Proost JH, Groothuis GM, de Graaf IA. Nanoparticle Formulation of a Poorly Soluble Cannabinoid Receptor 1 Antagonist Improves Absorption by Rat and Human Intestine. Drug Metab Dispos 2013; 41:1557-65. [DOI: 10.1124/dmd.112.049585] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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171
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Eltayeb SE, Su Z, Shi Y, Li S, Xiao Y, Ping Q. Preparation and optimization of transferrin-modified-artemether lipid nanospheres based on the orthogonal design of emulsion formulation and physically electrostatic adsorption. Int J Pharm 2013; 452:321-32. [PMID: 23694805 DOI: 10.1016/j.ijpharm.2013.05.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 04/12/2013] [Accepted: 05/02/2013] [Indexed: 01/28/2023]
Abstract
Artemether has been used for a long time in the treatment of malaria as safe and non expensive drug. It possesses potent anticancer effects in cancer cell lines. Our aim was to develop transferrin-modified-artemether lipid nanospheres as targeted anticancer drug delivery system. In this study, artemether intravenous delivery system was prepared by emulsifying method as lipid nanospheres containing mixture of soya oil and crodamol as the core and soya lecithin and Tween 80 as coating layer. According to the physicochemical characterization, the process and formulation variables were optimized by orthogonal design and ANOVA analysis. Based on the electrostatic interaction, transferrin (TR) was physically adsorbed onto the coating layer; the effect of medium pH and the charge of the nanocarriers on the adsorption were investigated. The in vitro characterizations were carried out including, the zeta potential, AFM, TEM, FTIR, (1)H NMR and gel filtration. ART-LNSs with high entrapment efficiency, small size of about 50 nm and monodispersity were formulated. Optimized and stable TR-LNSs, a lipoprotein like structure and size, were produced. We showed a method by which TR can be bound to lipid nanospheres without the need for chemical modification as a base for the development of safe, effective and non expensive anticancer drug delivery system.
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Affiliation(s)
- S E Eltayeb
- Department of Pharmaceutics, School of Pharmacy, The State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 210009, PR China.
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172
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Preparation and characterization of quercetin-loaded solid lipid microparticles for pulmonary delivery. POWDER TECHNOL 2013. [DOI: 10.1016/j.powtec.2013.01.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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173
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Kalhapure RS, Akamanchi KG. A novel biocompatible bicephalous dianionic surfactant from oleic acid for solid lipid nanoparticles. Colloids Surf B Biointerfaces 2013; 105:215-22. [DOI: 10.1016/j.colsurfb.2013.01.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2012] [Revised: 10/10/2012] [Accepted: 01/06/2013] [Indexed: 11/30/2022]
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174
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Experimental design towards an optimal lipid nanosystem: A new opportunity for paclitaxel-based therapeutics. Eur J Pharm Sci 2013; 49:302-10. [DOI: 10.1016/j.ejps.2013.03.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 03/08/2013] [Accepted: 03/13/2013] [Indexed: 11/30/2022]
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175
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Basha M, Abd El-Alim SH, Shamma RN, Awad GEA. Design and optimization of surfactant-based nanovesicles for ocular delivery of Clotrimazole. J Liposome Res 2013; 23:203-10. [DOI: 10.3109/08982104.2013.788025] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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176
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Patel M, Souto EB, Singh KK. Advances in brain drug targeting and delivery: limitations and challenges of solid lipid nanoparticles. Expert Opin Drug Deliv 2013; 10:889-905. [DOI: 10.1517/17425247.2013.784742] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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177
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Martins RM, Siqueira S, Machado MO, Freitas LAP. The effect of homogenization method on the properties of carbamazepine microparticles prepared by spray congealing. J Microencapsul 2013; 30:692-700. [DOI: 10.3109/02652048.2013.778906] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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178
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Khalil RM, Abd-Elbary A, Kassem MA, Ghorab MM, Basha M. Nanostructured lipid carriers (NLCs) versus solid lipid nanoparticles (SLNs) for topical delivery of meloxicam. Pharm Dev Technol 2013; 19:304-14. [PMID: 23528038 DOI: 10.3109/10837450.2013.778872] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The aim of this study was to develop nanostructured lipid carriers (NLCs) as well as solid lipid nanoparticles (SLNs) and evaluate their potential in the topical delivery of meloxicam (MLX). MATERIALS AND METHODS The effect of various compositional variations on their physicochemical properties was investigated. Furthermore, MLX-loaded lipid nanoparticles-based hydrogels were formulated and the gels were evaluated as vehicles for topical application. RESULTS AND DISCUSSION The results showed that NLC and SLN dispersions had spherical shapes with an average size between 215 and 430 nm. High entrapment efficiency was obtained ranging from 61.94 to 90.38% with negatively charged zeta potential in the range of -19.1 to -25.7 mV. The release profiles of all formulations exhibited sustained release characteristics over 48 h and the release rates increased as the amount of liquid lipid in lipid core increased. Finally, Precirol NLC with 50% Miglyol® 812 and its corresponding SLN were incorporated in hydrogels. The gels showed adequate pH, non-Newtonian flow with shear-thinning behavior and controlled release profiles. The biological evaluation revealed that MLX-loaded NLC gel showed more pronounced effect compared to MLX-loaded SLN gel. CONCLUSION It can be concluded that lipid nanoparticles represent promising particulate carriers for topical application.
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Affiliation(s)
- Rawia M Khalil
- Department of Pharmaceutical Technology, National Research Center , Cairo , Egypt
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179
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Vohra T, Kaur I, Heer H, Murthy RR. Nanolipid carrier-based thermoreversible gel for localized delivery of docetaxel to breast cancer. Cancer Nanotechnol 2013; 4:1-12. [PMID: 26069497 PMCID: PMC4451627 DOI: 10.1007/s12645-013-0032-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 11/19/2012] [Accepted: 01/28/2013] [Indexed: 11/03/2022] Open
Abstract
Intratumoral and intralesional administration of anticancer drugs in gels and implantable formulations is gaining much importance on account of its advantage of site-specific delivery with highly dependable freedom from unwanted side effects. Nanolipid carriers (NLC) are the preferred vehicle due to their improved properties particularly drug loading. In the present investigation, glyceryl monostearate-oleic acid NLCs loaded with docetaxel were prepared by emulsification and ultrasonication technique and were incorporated in thermoreversible pluronic F127 gel (TRPgel) for intralesion injection to breast tissue. The NLCs were spherical particles of 113 nm size with a negative zeta potential of -32.8 and 85 % drug entrapment. In vitro drug release profile of the NLC showed 96 % drug release in 48 h following Higuchi release kinetics. NLC incorporated TRPgel showed mucoadhesive force of 3.07 dynes/cm2 and gelling temperature in the range of 32 to 37 °C. The drug entrapped gel was also subjected to in vitro cytotoxicity study in human B-16 and HeLa cell lines by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and in vivo drug distribution study in breast tissue in healthy Wistar rats. The MTT assay revealed that docetaxel-loaded NLC incorporated into gel showed lower cytotoxicity than docetaxel. However, in vivo breast tissue distribution studies showed high tissue drug concentration, sustained over a period of 60 h in comparison to docetaxel and docetaxel-loaded NLCs. These results suggest that nanolipid carrier of docetaxel in TRPgel could be a promising carrier system to deliver drug to tumor by intralesional administration for improving therapeutic benefits of docetaxel.
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Affiliation(s)
- Tanya Vohra
- Nano Medicine Research Center, ISF College of Pharmacy, Moga, 142001 Punjab India
| | - Inderpreet Kaur
- Nano Medicine Research Center, ISF College of Pharmacy, Moga, 142001 Punjab India
| | - Hemraj Heer
- Nano Medicine Research Center, ISF College of Pharmacy, Moga, 142001 Punjab India
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180
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Fadda P, Monduzzi M, Caboi F, Piras S, Lazzari P. Solid lipid nanoparticle preparation by a warm microemulsion based process: Influence of microemulsion microstructure. Int J Pharm 2013; 446:166-75. [DOI: 10.1016/j.ijpharm.2013.02.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 02/08/2013] [Accepted: 02/09/2013] [Indexed: 10/27/2022]
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181
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Sapsford KE, Algar WR, Berti L, Gemmill KB, Casey BJ, Oh E, Stewart MH, Medintz IL. Functionalizing nanoparticles with biological molecules: developing chemistries that facilitate nanotechnology. Chem Rev 2013; 113:1904-2074. [PMID: 23432378 DOI: 10.1021/cr300143v] [Citation(s) in RCA: 813] [Impact Index Per Article: 73.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kim E Sapsford
- Division of Biology, Department of Chemistry and Materials Science, Office of Science and Engineering Laboratories, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
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182
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Kumbhar DD, Pokharkar VB. Engineering of a nanostructured lipid carrier for the poorly water-soluble drug, bicalutamide: Physicochemical investigations. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2012.10.031] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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183
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Herrero-Vanrell R, Vicario de la Torre M, Andrés-Guerrero V, Barbosa-Alfaro D, Molina-Martínez I, Bravo-Osuna I. Nano and microtechnologies for ophthalmic administration, an overview. J Drug Deliv Sci Technol 2013. [DOI: 10.1016/s1773-2247(13)50016-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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184
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Shah M, Agrawal Y. Development of Ciprofloxacin HCl-Based Solid Lipid Nanoparticles Using Ouzo Effect: An Experimental Optimization and Comparative Study. J DISPER SCI TECHNOL 2013. [DOI: 10.1080/01932691.2011.646614] [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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185
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Rodríguez G, Rubio L, Barba C, López-Iglesias C, de la Maza A, López O, Cócera M. Characterization of new DOPC/DHPC platform for dermal applications. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2012; 42:333-45. [DOI: 10.1007/s00249-012-0878-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 11/20/2012] [Accepted: 11/29/2012] [Indexed: 11/24/2022]
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186
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Golmohammadzadeh S, Mokhtari M, Jaafari MR. Preparation, characterization and evaluation of moisturizing and UV protecting effects of topical solid lipid nanoparticles. BRAZ J PHARM SCI 2012. [DOI: 10.1590/s1984-82502012000400012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Solid lipid nanoparticles (SLN) were recently proposed as carriers for various pharmaceutical and cosmetic actives. These lipid nanoparticles can act as moisturizers and physical sunscreens on their own. Therefore, the full potential of these carriers has yet to be determined. The present study was aimed to determine and compare moisturizing and UV-protecting effects of different solid lipid nanoparticles (SLN) prepared by different solid lipids including Glyceryl monostearate (GMS), Precirol® (P) and cetyl palmitate (CP) as carrier systems of moisturizers and sunscreens. The influence of the size and matrix crystallinity of the solid lipids on the occlusive factor, skin hydration and UV-protection were evaluated by in vitro and in vivo methods. The SLN were prepared by high-shear homogenization and ultrasound methods. Size, zeta potential and morphological characteristics of the samples were assessed by transmission electron microscopy (TEM) and thermotropic properties with differential scanning calorimetry (DSC) technique. Results of the assessments showed that SLN-CP significantly increases skin hydration and UV-protection, compared to SLN-GMS and SLN-P. It was demonstrated that the size of SLN, crystallinity index of solid lipid in SLN and probably other mechanisms besides the occlusive factor can influence skin hydration and UV-protection indices. Furthermore, findings of the assessments demonstrated significant difference between in vitro and in vivo assessments regarding occlusive factor and moisturizing effects. Findings of the present study indicate that the SLN-CP could be a promising carrier for sunscreens and moisturizers.
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187
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Fang YP, Wu PC, Huang YB, Tzeng CC, Chen YL, Hung YH, Tsai MJ, Tsai YH. Modification of polyethylene glycol onto solid lipid nanoparticles encapsulating a novel chemotherapeutic agent (PK-L4) to enhance solubility for injection delivery. Int J Nanomedicine 2012; 7:4995-5005. [PMID: 23055719 PMCID: PMC3457677 DOI: 10.2147/ijn.s34301] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The synthetic potential chemotherapeutic agent 3-Chloro-4-[(4-methoxyphenyl) amino]furo[2,3-b]quinoline (PK-L4) is an analog of amsacrine. The half-life of PK-L4 is longer than that of amsacrine; however, PK-L4 is difficult to dissolve in aqueous media, which is problematic for administration by intravenous injection. AIMS To utilize solid lipid nanoparticles (SLNs) modified with polyethylene glycol (PEG) to improve the delivery of PK-L4 and investigate its biodistribution behavior after intravenous administration. RESULTS The particle size of the PK-L4-loaded SLNs was 47.3 nm and the size of the PEGylated form was smaller, at 28 nm. The entrapment efficiency (EE%) of PK-L4 in SLNs with and without PEG showed a high capacity of approximately 100% encapsulation. Results also showed that the amount of PK-L4 released over a prolonged period from SLNs both with and without PEG was comparable to the non-formulated group, with 16.48% and 30.04%, respectively, of the drug being released, which fit a zero-order equation. The half-maximal inhibitory concentration values of PK-L4-loaded SLNs with and those without PEG were significantly reduced by 45%-64% in the human lung carcinoma cell line (A549), 99% in the human breast adenocarcinoma cell line with estrogen receptor (MCF7), and 95% in the human breast adenocarcinoma cell line (MDA-MB-231). The amount of PK-L4 released by SLNs with PEG was significantly higher than that from the PK-L4 solution (P < 0.05). After intravenous bolus of the PK-L4-loaded SLNs with PEG, there was a marked significant difference in half-life alpha (0.136 ± 0.046 hours) when compared with the PK-L4 solution (0.078 ± 0.023 hours); also the area under the curve from zero to infinity did not change in plasma when compared to the PK-L4 solution. This demonstrated that PK-L4-loaded SLNs were rapidly distributed from central areas to tissues and exhibited higher accumulation in specific organs. The highest deposition of PK-L4-loaded SLNs with PEG was found in the lung and spine. CONCLUSION Sufficient amounts of PK-L4 were entrapped in the SLNs, and the pharmacokinetic behavior of PK-L4-loaded SLNs was established. This formulation successfully resolved the delivery problem, and the drug was localized in particular organs.
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Affiliation(s)
- Yi-Ping Fang
- Department of Biotechnology, Yuanpei University, Hsinchu, Taiwan
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188
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Composite polylactic-methacrylic Acid copolymer nanoparticles for the delivery of methotrexate. JOURNAL OF DRUG DELIVERY 2012; 2012:579629. [PMID: 22919501 PMCID: PMC3418700 DOI: 10.1155/2012/579629] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 05/10/2012] [Indexed: 11/17/2022]
Abstract
The purpose of this study was to develop poly(lactic acid)-methacrylic acid copolymeric nanoparticles with the potential to serve as nanocarrier systems for methotrexate (MTX) used in the chemotherapy of primary central nervous system lymphoma (PCNSL). Nanoparticles were prepared by a double emulsion solvent evaporation technique employing a 3-Factor Box-Behnken experimental design strategy. Analysis of particle size, absolute zeta potential, polydispersity (Pdl), morphology, drug-loading capacity (DLC), structural transitions through FTIR spectroscopy, and drug release kinetics was undertaken. Molecular modelling elucidated the mechanisms of the experimental findings. Nanoparticles with particle sizes ranging from 211.0 to 378.3 nm and a recovery range of 36.8-86.2 mg (Pdl ≤ 0.5) were synthesized. DLC values were initially low (12 ± 0.5%) but were finally optimized to 98 ± 0.3%. FTIR studies elucidated the comixing of MTX within the nanoparticles. An initial burst release (50% of MTX released in 24 hours) was obtained which was followed by a prolonged release phase of MTX over 84 hours. SEM images revealed near-spherical nanoparticles, while TEM micrographs revealed the presence of MTX within the nanoparticles. Stable nanoparticles were formed as corroborated by the chemometric modelling studies undertaken.
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189
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Jaafar-Maalej C, Elaissari A, Fessi H. Lipid-based carriers: manufacturing and applications for pulmonary route. Expert Opin Drug Deliv 2012; 9:1111-27. [PMID: 22724618 DOI: 10.1517/17425247.2012.702751] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Recent advances in aerosol therapy have sparked considerable interest in the development of novel drug delivery systems for pulmonary route. Development of colloidal carriers as pharmaceutical drug delivery systems has spurred an exponential growth; the encapsulation of bioactive molecules into relatively inert and non-toxic carriers for in vivo delivery constitutes a promising approach for improving their therapeutic index while reducing the side effects. Extraordinary success has been made toward improving efficacy by developing lipid-based carriers (LBCs); among classical examples are liposomes and solid lipid nanoparticles (SLNs). AREAS COVERED The authors review lipid-based colloidal carriers - liposomes and SLNs - as pulmonary drug delivery systems. Conventional methods of liposome preparation and recently developed systems are discussed. Special attention is given to SLNs and their main manufacturing techniques. Finally, a summary of recent scientific publications and important results in the field of pulmonary lipidic carriers are presented. Some practical considerations regarding the toxicological concerns of such systems are briefly cited. EXPERT OPINION Despite several scientific investigations, numerous advantages and encouraging results, LBCs for pulmonary route have attained only few great achievements as many challenges still remain. Problems limiting the use of such system seem to be the complexity of the respiratory tract as well as the lack of toxicity assessment risks of colloidal carriers.
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Affiliation(s)
- Chiraz Jaafar-Maalej
- Université Lyon 1, Laboratoire d'Automatique et de Génie des Procédés, UMR 5007, CNRS, CPE, 43 bd du 11 Novembre, 69622 Villeurbanne Cedex, France
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190
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Youshia J, Kamel AO, El Shamy A, Mansour S. Design of cationic nanostructured heterolipid matrices for ocular delivery of methazolamide. Int J Nanomedicine 2012; 7:2483-96. [PMID: 22679362 PMCID: PMC3367493 DOI: 10.2147/ijn.s28307] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Solid lipid nanoparticles (SLNs) formulated from one type of lipid (homolipid) suffer from low drug encapsulation and drug bursting due to crystallization of the lipid into the more ordered β modification, which leads to decreased drug entrapment and faster drug release. This study assessed the feasibility of using nanostructured lipid matrices (NLMs) for ocular delivery of methazolamide-(MZA) adopting heterolipids composed of novel mixtures of Compritol (®) and cetostearyl alcohol (CSA), and stabilized by Tween 80(®). The systems were prepared using the modified high shear homogenization followed by ultrasonication method, which avoids the use of organic solvents. A 3(2) full factorial design was constructed to study the influence of two independent variables, namely the ratio of CSA:Compritol and the concentration of Tween 80, each in three levels. The dependent variables were the entrapment efficiency percentages (EE%), mean particle size (PS), polydispersity index (PDI), and zeta potential (ZP). In vivo intraocular pressure (IOP) lowering activity for the selected formulae was compared to that of MZA solution. The results showed that increasing the ratio of CSA to Compritol increased the EE% and PS, while increasing the concentration of Tween 80, decreased PS with no significant effect on EE%. The ZP values of all formulae were positive, and greater than 30 mV. The best formula, composed of 4% CSA, 2% Compritol, 0.15% stearylamine, and 2% Tween 80, with EE% of 25.62%, PS of 207.1 nm, PDI of 0.243, and ZP of 41.50 mV, showed in vitro sustained release properties for 8 hours and lowered the intraocular pressure by 8.3 mmHg within 3 hours, with this drop in pressure lasting for 12 hours.
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Affiliation(s)
- John Youshia
- Pharmaceutics and Industrial Pharmacy Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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191
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Estella-Hermoso de Mendoza A, Campanero MA, Lana H, Villa-Pulgarin JA, de la Iglesia-Vicente J, Mollinedo F, Blanco-Prieto MJ. Complete inhibition of extranodal dissemination of lymphoma by edelfosine-loaded lipid nanoparticles. Nanomedicine (Lond) 2012; 7:679-90. [DOI: 10.2217/nnm.11.134] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background: Lipid nanoparticles (LNs) made of synthetic lipids Compritol® 888 ATO and Precirol® ATO 5 were developed with an average size of 110.4 ± 2.1 and 103.1 ± 2.9 nm, and an encapsulation efficiency above 85% for both type of lipids. These LNs decrease the hemolytic toxicity of the drug by 90%. Materials & methods: Pharmacokinetic and biodistribution profiles of the drug were studied after intravenous and oral administration of edelfosine-containing LNs. Results: This provided an increase in relative oral bioavailability of 1500% after a single oral administration of drug-loaded LNs, maintaining edelfosine plasma levels over 7 days in contrast to a single oral administration of edelfosine solution, which presented a relative oral bioavailability of 10%. Moreover, edelfosine-loaded LNs showed a high accumulation of the drug in lymph nodes and resulted in slower tumor growth than the free drug in a murine lymphoma xenograft model, as well as potent extranodal dissemination inhibition. Original submitted 5 April 2011; Revised submitted 5 July 2011
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Affiliation(s)
| | - Miguel A Campanero
- Clinical Pharmacology Service, University of Navarra Clinic, E-31008, Spain
| | - Hugo Lana
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, E-31008, Spain
| | - Janny A Villa-Pulgarin
- Instituto de Biología Molecular y Celular del Cáncer, Centro de Investigación del Cáncer, CSIC-Universidad de Salamanca, Campus Miguel de Unamuno, E-37007 Salamanca, Spain
| | - Janis de la Iglesia-Vicente
- Instituto de Biología Molecular y Celular del Cáncer, Centro de Investigación del Cáncer, CSIC-Universidad de Salamanca, Campus Miguel de Unamuno, E-37007 Salamanca, Spain
| | - Faustino Mollinedo
- Instituto de Biología Molecular y Celular del Cáncer, Centro de Investigación del Cáncer, CSIC-Universidad de Salamanca, Campus Miguel de Unamuno, E-37007 Salamanca, Spain
| | - María J Blanco-Prieto
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, E-31008, Spain
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192
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Nik AM, Langmaid S, Wright AJ. Nonionic surfactant and interfacial structure impact crystallinity and stability of β-carotene loaded lipid nanodispersions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:4126-4135. [PMID: 22401532 DOI: 10.1021/jf204810m] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The stability, crystallization, and melting behavior of canola stearin (CaSt) solid lipid nanoparticle dispersions (SLN) and canola oil-in-water emulsions (COE) with 10 wt % Poloxamer 188 (P188) or Tween 20 (T20) with and without 0.1 wt % β-carotene (BC) were investigated. Particles or droplets with diameters in the range of 115 nm were formed and stable for up to 90 days at 4 or 20 °C. Polymorphism was affected by surfactant type; that is, only β versus both β' and β were observed for the P188 and T20 SLN, respectively. According to Cryo-TEM, the emulsions and SLN were spherical versus platelet-like structures, respectively, with differences observed between SLN with P188 or T20. More surfactant was interfacially adsorbed in the SLN versus COE. Incorporation of BC at 0.1 wt % had no impact on SLN or COE size, polymorphism, or melting behavior. Less BC degradation was observed for the SLN versus COE and during storage at 4 versus 20 °C (p < 0.05).
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Affiliation(s)
- Amir Malaki Nik
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
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193
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Shi F, Zhao JH, Liu Y, Wang Z, Zhang YT, Feng NP. Preparation and characterization of solid lipid nanoparticles loaded with frankincense and myrrh oil. Int J Nanomedicine 2012; 7:2033-43. [PMID: 22619540 PMCID: PMC3356207 DOI: 10.2147/ijn.s30085] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The aim of the present study was to prepare solid lipid nanoparticles (SLNs) for the oral delivery of frankincense and myrrh essential oils (FMO). Aqueous dispersions of SLNs were successfully prepared by a high-pressure homogenization method using Compritol 888 ATO as the solid lipid and soybean lecithin and Tween 80 as the surfactants. The properties of the SLNs such as particle size, zeta potential (ZP), and drug encapsulation efficiency (EE) were investigated. The morphology of SLNs was observed by transmission electron microscopy (TEM). The crystallinity of the formulation was analyzed by differential scanning calorimetry (DSC) and X-ray diffraction (XRD). In addition, drug evaporation release and antitumor activity were also studied. Round SLNs with a mean size of 113.3 ± 3.6 nm, a ZP of −16.8 ± 0.4 mV, and an EE of 80.60% ± 1.11% were obtained. DSC and XRD measurements revealed that less ordered structures were formed in the inner cores of the SLN particles. Evaporation loss of the active components in FMO could be reduced in the SLNs. Furthermore, the SLN formulation increased the antitumor efficacy of FMO in H22-bearing Kunming mice. Hence, the presented SLNs can be used as drug carriers for hydrophobic oil drugs extracted from traditional Chinese medicines.
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Affiliation(s)
- Feng Shi
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
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194
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Battaglia L, Gallarate M. Lipid nanoparticles: state of the art, new preparation methods and challenges in drug delivery. Expert Opin Drug Deliv 2012; 9:497-508. [PMID: 22439808 DOI: 10.1517/17425247.2012.673278] [Citation(s) in RCA: 194] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Nanoparticles are rapidly developing as drug carriers because of their size-dependent properties. Lipid nanoparticles (LNPs) are widely employed in drug delivery because of the biocompatibility of the lipid matrix. AREAS COVERED Many different types of LNPs have been engineered in the last 20 years, the most important being solid lipid nanoparticles (SLNs), nanostrucured lipid carriers (NLCs), lipid-drug conjugates (LDCs) and lipid nanocapsules (LNCs). This review gives an overview of LNPs, including their physico-chemical properties and pharmacological uses. Moreover, it highlights the most important innovations in the preparation techniques of LNPs, aimed to encapsulate different molecules within the lipid matrix. Finally, it gives a short perspective on the challenges of drug delivery, which are a potential field of application for LNPs: cancer therapy, overcoming the blood-brain barrier and gene and protein delivery. EXPERT OPINION LNPs are a safe and versatile vehicles for drug and active delivery, suitable for different administration routes. New technologies have been developed for LNP preparation and studies are currently underway in order to obtain the encapsulation of different drugs and to deliver the active molecule to the site of action.
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Affiliation(s)
- Luigi Battaglia
- Università degli Studi di Torino, Dipartimento di Scienza e Tecnologia del Farmaco , via Pietro Giuria 9, Torino , Italy.
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195
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Benival DM, Devarajan PV. Lipomer of doxorubicin hydrochloride for enhanced oral bioavailability. Int J Pharm 2012; 423:554-61. [DOI: 10.1016/j.ijpharm.2011.11.035] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 11/23/2011] [Accepted: 11/23/2011] [Indexed: 10/14/2022]
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196
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Abbasalipourkabir R, Salehzadeh A, Abdullah R. Characterization and stability of nanostructured lipid carriers as drug delivery system. Pak J Biol Sci 2012; 15:141-146. [PMID: 22866544 DOI: 10.3923/pjbs.2012.141.146] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Recently more focus has been put to the development of innovative drug-delivery systems that includes polymer nanoparticles, emulsions and liposomes and solid lipid nanoparticles (SLNs). The SLNs have been proposed to be an alternative colloidal drug delivery system. The aim of this study was preparation and characterization of solid lipid nanoparticle (SLN) using varieties of emulsifier for encapsulation of the drug with poor water solubility. In these study four types of solid lipid nanoparticles were prepared based on different compositions of palm oil (S154) and lecithin (Lipoid 100) using the high pressure homogenization method. The SLN formulation had the following (palm oil+lecithin) compositions: SLN-01 (90 + 10%, respectively), SLN-02 (80 + 20%, respectively), SLN-03 (70 + 30%, respectively) and SLN-04 (60 + 40%, respectively). The SLNs were characterized and the optimum stability factors for one year storage determined. The parameters used to characterize the SLNs were particle size and polydispersity index (particle sizer), zeta potential (zetasizer), crystallinity (differential scanning calorimetry and wide angle X-ray diffraction), ultrastructure (transmission electron microscopy). Varying the palm oil and lecithin compositions resulted in SLNs of variable sizes and zeta potentials. The particle sizes of SLN-01, SLN-02, SLN-03 and SLN-04 were 298.40 +/- 11.80, 255.40 +/- 3.20, 145.00 +/- 3.39 and 273.00 +/- 86.50 nm, respectively, while the zeta potentials were -19.44 +/- 60.00, -19.50 +/- 1.80, -17.83 +/- 10.00 and -13.33 +/- 2.30 mV, respectively. Thermoanalysis and X-ray diffraction analysis showed that the SLNs had lower crystallinity than bulk lipid. The SLNs were generally round and uniform in shape under transmission electron microscopy. The SLN dimensional data suggested they had high quality physicochemical characteristics, which are conducive for the loading of poor water solubility drugs.
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197
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Tsai MJ, Wu PC, Huang YB, Chang JS, Lin CL, Tsai YH, Fang JY. Baicalein loaded in tocol nanostructured lipid carriers (tocol NLCs) for enhanced stability and brain targeting. Int J Pharm 2012; 423:461-70. [DOI: 10.1016/j.ijpharm.2011.12.009] [Citation(s) in RCA: 124] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 11/22/2011] [Accepted: 12/06/2011] [Indexed: 12/28/2022]
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198
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Kashanian S, Azandaryani AH, Derakhshandeh K. New surface-modified solid lipid nanoparticles using N-glutaryl phosphatidylethanolamine as the outer shell. Int J Nanomedicine 2011; 6:2393-401. [PMID: 22114489 PMCID: PMC3218572 DOI: 10.2147/ijn.s20849] [Citation(s) in RCA: 12] [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] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Solid lipid nanoparticles (SLNs) are colloidal carrier systems which provide controlled-release profiles for many substances. In this study, we prepared aqueous dispersions of lipid nanoparticles using a modified, pH-sensitive derivative of phosphatidylethanolamine. METHODS SLNs were prepared using polysorbate 80 as the surfactant and tripalmitin glyceride and N-glutaryl phosphatidylethanolamine as the lipid components. Particle size, polydispersity index, and zeta potential were examined by photon correlation spectroscopy. Morphological evaluation was performed using scanning electron microscopy, atomic force microscopy, and differential scanning calorimetry. RESULTS Photon correlation spectroscopy revealed a particle hydrodynamic diameter of 165.8 nm and zeta potential of -41.6.0 mV for the drug-loaded nanoparticles. Atomic force microscopy investigation showed the nanoparticles to be 50-600 nm in length and 66.5 nm in height. Differential scanning calorimetry indicated that the majority of SLNs possessed less ordered arrangements of crystals compared with corresponding bulk lipids, which is favorable for improving drug-loading capacity. Drug-loading capacity and drug entrapment efficiency values for the SLNs were 25.32% and 94.32%, respectively. CONCLUSION The SLNs prepared in this study were able to control the release of triamcinolone acetonide under acidic conditions.
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Affiliation(s)
- Soheila Kashanian
- School of Chemistry, Nanoscience and Nanotechnology Research Center and Sensor and Biosensor Research Center, Razi University, Kermanshah, Iran
| | - Abbas Hemati Azandaryani
- School of Chemistry, Nanoscience and Nanotechnology Research Center and Sensor and Biosensor Research Center, Razi University, Kermanshah, Iran
| | - Katayoun Derakhshandeh
- Department of Pharmaceutics, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Nanoscience and Technology Research Center School of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Shegokar R, Singh K, Müller R. Production & stability of stavudine solid lipid nanoparticles—From lab to industrial scale. Int J Pharm 2011; 416:461-70. [DOI: 10.1016/j.ijpharm.2010.08.014] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Revised: 07/30/2010] [Accepted: 08/04/2010] [Indexed: 11/27/2022]
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Nanjwade BK, Patel DJ, Udhani RA, Manvi FV. Functions of lipids for enhancement of oral bioavailability of poorly water-soluble drugs. Sci Pharm 2011; 79:705-27. [PMID: 22145101 PMCID: PMC3221495 DOI: 10.3797/scipharm.1105-09] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Accepted: 08/02/2011] [Indexed: 11/22/2022] Open
Abstract
Lipid-based formulations encompass a diverse group of formulations with very different physical appearance, ranging from simple triglyceride vehicles to more sophisticated formulations such as self-emulsifying drug delivery systems (SEDDS). Lipid-based drug delivery systems may contain a broad range of oils, surfactants, and co-solvents. They represent one of the most popular approaches to overcome the absorption barriers and to improve the bioavailability of poorly water-soluble drugs. Diversity and versatility of pharmaceutical grade lipid excipients and drug formulations as well as their compatibility with liquid, semi-solid and solid dosage forms make lipid systems most complex. Digestion of triglyceride lipids, physicochemical characteristics and solubilisation of lipid digestion products as well as intestinal permeability are some of the variable parameters of such formulations. Furthermore, among the factors affecting the bioavailability of the drug from lipid-based formulations are the digestion of lipid, the mean emulsion droplet diameter, the lipophilicity of the drug and the type of lipids. The solubility of the Active Pharmaceutical Ingredient in the Lipid System, the desorption/sorption isotherm and the digestibility of lipid vehicle are important issues to be considered for formulations of isotropic lipid formulations. This review also describes the fate of lipid formulations in the gut and the factors influencing the bioavailability from lipid-based formulations. Novel formulation systems and currently marketed products conclude this review.
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Affiliation(s)
- Basavaraj K Nanjwade
- Department of Pharmaceutics, KLE University College of Pharmacy, Nehrunagar, 590010, Belgaum, India
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