1
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Vincent M, Lehoux J, Desmarty C, Moine E, Legrand P, Dorandeu C, Simon L, Durand T, Brabet P, Crauste C, Begu S. A novel lipophenol quercetin derivative to prevent macular degeneration: Intravenous and oral formulations for preclinical pharmacological evaluation. Int J Pharm 2024; 651:123740. [PMID: 38145781 DOI: 10.1016/j.ijpharm.2023.123740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 12/27/2023]
Abstract
Drugs with properties against oxidative and carbonyl stresses are potential candidates to prevent dry age-related macular degeneration (Dry-AMD) and inherited Stargardt disease (STGD1). Previous studies have demonstrated the capacity of a new lipophenol drug: 3-O-DHA-7-O-isopropyl-quercetin (Q-IP-DHA) to protect ARPE19 and primary rat RPE cells respectively from A2E toxicity and under oxidative and carbonyl stress conditions. In this study, first, a new methodology has been developed to access gram scale of Q-IP-DHA. After classification of the lipophenol as BCS Class IV according to physico-chemical and biopharmaceutical properties, an intravenous formulation with micelles (M) and an oral formulation using lipid nanocapsules (LNC) were developed. M were formed with Kolliphor® HS 15 and saline solution 0.9 % (mean size of 16 nm, drug loading of 95 %). The oral formulation was optimized and successfully allowed the formation of LNC (25 nm, 96 %). The evaluation of the therapeutic potency of Q-IP-DHA was performed after IV administration of micelles loaded with Q-IP-DHA (M-Q-IP-DHA) at 30 mg/kg and after oral administration of LNC loaded with Q-IP-DHA (LNC-Q-IP-DHA) at 100 mg/kg in mice. Results demonstrated photoreceptor protection after induction of retinal degeneration by acute light stress making Q-IP-DHA a promising preventive candidate against dry-AMD and STGD1.
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Affiliation(s)
- Maxime Vincent
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - Jordan Lehoux
- IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France
| | - Claire Desmarty
- Institut des Neurosciences de Montpellier, INSERM U1051, Montpellier, France
| | | | | | | | | | - Thierry Durand
- IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Philippe Brabet
- Institut des Neurosciences de Montpellier, INSERM U1051, Montpellier, France.
| | - Céline Crauste
- IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Sylvie Begu
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
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Wu L, Huang W, Peng K, Wang Y, Chen Q, Lu B. Enhancing the stability, BBB permeability and neuroprotective activity of verbascoside in vitro using lipid nanocapsules in combination with menthol. Food Chem 2023; 414:135682. [PMID: 36827775 DOI: 10.1016/j.foodchem.2023.135682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 01/13/2023] [Accepted: 02/09/2023] [Indexed: 02/13/2023]
Abstract
Verbascoside (VER) shows promising neuroprotective activity. However, the instability and low permeability in crossing the blood-brain barrier (BBB) greatly hinder its application. In the present study, verbascoside was encapsulated into lipid nanocapsules (LNC) by reverse micelle (RM) to increase its stability. Besides, we used VER-RM-LNC combined with an envoy drug, menthol, to improve its BBB permeability and neuroprotective activity. VER-RM-LNC was prepared by the phase inversion temperature method, resulting in an encapsulation efficiency of nearly 85 %. The formulated VER-RM-LNC was stable for 6 months at 4 °C. VER encapsulated into LNC possessed enhanced stability and a reduced release profile. Menthol increased the cellular uptake and the permeability of VER-RM-LNC in the BBB model in vitro. In addition, the improved neuroprotective activity of VER through incubation with menthol and VER-RM-LNC was verified in the neurotoxic human brain microvascular endothelial cells model induced by Aβ25-35.
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Affiliation(s)
- Lipeng Wu
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China; Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China; Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311200, China
| | - Weisu Huang
- Zhejiang Institute of Economics and Trade, Hangzhou 310058, China
| | - Kejie Peng
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China; Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China; Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311200, China
| | - Yixuan Wang
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China; Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China; Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311200, China
| | - Qi Chen
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China; Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China; Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311200, China
| | - Baiyi Lu
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Key Laboratory for Agro-Products Nutritional Evaluation of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang International Scientific and Technological Cooperation Base of Health Food Manufacturing and Quality Control, Zhejiang University, Hangzhou 310058, China; Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, China; Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311200, China.
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Jiang J, Wang Z, Wang C, Shi L, Hou J, Zhang L. Model Emulsions Stabilized with Nonionic Surfactants: Structure and Rheology Across Catastrophic Phase Inversion. ACS OMEGA 2022; 7:44012-44020. [PMID: 36506205 PMCID: PMC9730459 DOI: 10.1021/acsomega.2c05388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/15/2022] [Indexed: 06/17/2023]
Abstract
The catastrophic phase inversion process of model emulsions (water/Span 80-Tween 80/heptane) from oil-in-water to water-in-oil emulsion was investigated. During this process, the phase inversion of the emulsion was monitored through Fourier transform infrared spectroscopy (FT-IR). In emulsions without NaCl, oil-in-water gel emulsions are formed prior to phase inversion. As the HLB value increases, the oil volume fraction required for phase inversion becomes higher. Polydisperse distribution of the gel emulsion is observed from microscope optical images. The Turbiscan Lab stability analyzer indicates that O/W gel emulsions before the phase inversion has good stability at 50 °C. Rheological measurements reveal that emulsions exhibit non-Newtonian behavior. The viscosity of the gel emulsions increases significantly prior to phase inversion. As the oil volume fraction increases, the storage modulus and loss modulus of the gel emulsion increase to a maximum, at which catastrophic phase inversion occurs. In emulsions with NaCl, there is no oil-in-water gel emulsion formed before phase inversion. The physicochemical properties of the emulsion play a crucial role in whether gel emulsions are produced during catastrophic phase inversion. These gel emulsions have the potential to diversify the applications in crude oil extraction, drug delivery systems, packaging materials, and other fields.
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Affiliation(s)
- Jie Jiang
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao266580, China
| | - Zi Wang
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao266580, China
| | - Chuangye Wang
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao266580, China
| | - Lina Shi
- College
of Science, China University of Petroleum
(East China), Qingdao266580, China
| | - Jian Hou
- School
of Petroleum Engineering, China University
of Petroleum (East China), Qingdao266580, China
| | - Longli Zhang
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao266580, China
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Dabholkar N, Waghule T, Krishna Rapalli V, Gorantla S, Alexander A, Narayan Saha R, Singhvi G. Lipid shell lipid nanocapsules as smart generation lipid nanocarriers. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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5
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Ivanova AA, Cheremisin AN, Barifcani A, Iglauer S, Phan C. Molecular dynamics study of the effect of sodium and chloride ions on water-surfactant-hydrocarbon interfaces. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111243] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zhao H, Kang W, Yang H, Huang Z, Zhou B, Sarsenbekuly B. Emulsification and stabilization mechanism of crude oil emulsion by surfactant synergistic amphiphilic polymer system. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125726] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Radwan SAA, El-Maadawy WH, ElMeshad AN, Shoukri RA, Yousry C. Impact of Reverse Micelle Loaded Lipid Nanocapsules on the Delivery of Gallic Acid into Activated Hepatic Stellate Cells: A Promising Therapeutic Approach for Hepatic Fibrosis. Pharm Res 2020; 37:180. [PMID: 32875435 DOI: 10.1007/s11095-020-02891-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 07/23/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE Gallic acid (GA) is a polyphenolic compound with proven efficacy against hepatic fibrosis in experimental animals. However, it suffers from poor bioavailability and rapid clearance that hinders its clinical investigation. Accordingly, we designed and optimized reverse micelle-loaded lipid nanocapsules (RMLNC) using Box-Behnken design that can deliver GA directly into activated-hepatic stellate cells (aHSCs) aiming to suppress hepatic fibrosis progression. METHODS GA-RMLNC was prepared using soft energy, solvent free phase inversion temperature method. Effects of formulation variables on particle size, zeta potential, entrapment efficiency (EE%) and GA release were studied. In-vivo biodistribution of GA-RMLNC in rats and in-vitro activities on aHSCs were also explored. RESULTS Nano-sized GA-RMLNCs (30.35 ± 2.34 nm) were formulated with high GA-EE% (63.95 ± 2.98% w/w) and physical stability (9 months). The formulated system showed burst GA release in the first 2 h followed by sustained release profile. In-vivo biodistribution imaging revealed that RMLNC-loaded with rhodamine-B accumulated mainly in rats' livers. Relative to GA; GA-RMLNC displayed higher anti-proliferative activities, effective internalization into aHSCs, marked down-regulation in pro-fibrogenic biomarkers' expressions and elevated HSCs' apoptosis. CONCLUSIONS These findings emphasize the promising application of RMLNC as a delivery system in hepatic fibrosis treatment, where successful delivery of GA into aHSCs was ensured via increased cellular uptake and antifibrotic activities.
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Affiliation(s)
- Shaimaa Ali Ali Radwan
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr Al Aini street, PO Box 11562, Cairo, Egypt.
| | - Walaa H El-Maadawy
- Department of Pharmacology, Theodor Bilharz Research Institute, Kornaish El Nile, Warrak El-Hadar, Imbaba (P.O. 30), Giza, 12411, Egypt
| | - Aliaa Nabil ElMeshad
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr Al Aini street, PO Box 11562, Cairo, Egypt
| | - Raguia Aly Shoukri
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr Al Aini street, PO Box 11562, Cairo, Egypt
| | - Carol Yousry
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr Al Aini street, PO Box 11562, Cairo, Egypt
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8
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Sun R, Zhang A, Ge Y, Gou J, Yin T, He H, Wang Y, Zhang G, Kong J, Shang L, Tao X, Zhang Y, Tang X. Ultra-small-size Astragaloside-IV loaded lipid nanocapsules eye drops for the effective management of dry age-related macular degeneration. Expert Opin Drug Deliv 2020; 17:1305-1320. [PMID: 32538226 DOI: 10.1080/17425247.2020.1783236] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background Age-related macular degeneration (AMD) is a major cause of severe visual loss in elderly people. The treatments for dry AMD (dAMD) are severely limited so far. In this work, we aim to develop an eye drop to protect retinal functions against oxidative stress and apoptosis for improving dAMD management. Methods Astragaloside-IV (ASIV) was prepared into phospholipid complex and loaded into three sizes (20, 50 and 90 nm) of ASIV lipid nanocapsules (ASIV-LNCs). The penetration and distribution of LNCs were investigated. DAMD mice model was induced by NaIO3, and therapeutic effect was evaluated by electroretinography (ERG), histological examination, apoptosis and ROS detection. Results The ocular penetration and pharmacokinetic studies corroborated the feasibility of the LNCs to reach the fundus, and ultra-small-size LNCs (ASIV-LNCs-20) had the best delivery effect. ASIV-LNCs-20 was able to decrease ROS production and reduce the apoptosis rate from 5.12% to 0.533%. ERG and H&E staining results confirmed ASIV-LNCs-20 had a good protective effect on the morphology and function of the retina. Conclusions These results suggest that ASIV-LNCs can be a promising therapy approach for dAMD, and this research also offers new possibilities for further applications of LNCs as a drug delivery system for other eye diseases. Abbreviations AMD: Age-related macular degeneration;AREDS Age-related eye disease study; ASIV: Astragaloside-IV;AUC: Area under the concentration-time curve; dAMD: Dry age-related macular degeneration; DHE: Dihydroethidium; DL: Drug Loading; DLS: Dynamic light scattering; DSC: Differential scanning calorimetry; EE: Entrapment efficiency; ELSD: Evaporative light scattering detector; ERG: Electroretinographic; H&E: Hematoxylin and Eosin; I.S.: Internal standard; LB: Langmuir-Blodgett; LNCs: Lipid nanocapsules; MCT: Medium-chain triacylglycerol; ONL: Outer nuclear layer; OPL: Outer plexiform layer; PDI: Polydispersity index; PR: Photoreceptor;ROS: Reactive oxygen species; RPE: Retinal pigment epithelium; TEM: Transmission electron microscope; wAMD: Wet age-related macular degeneration.
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Affiliation(s)
- Rong Sun
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Anan Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Ying Ge
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Jingxin Gou
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Tian Yin
- School of Functional Food and Wine, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Haibing He
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Yanjiao Wang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Guimin Zhang
- Lunan Pharmaceutical Group Co., Ltd ., Shandong, PR China
| | - Jun Kong
- Ophthalmology, The Fourth Affiliated Hospital of China Medical University , Shenyang, Liaoning, PR China
| | | | - Xiumei Tao
- NKD Pharma Co., Ltd ., Beijing, PR China
| | - Yu Zhang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China.,Lunan Pharmaceutical Group Co., Ltd ., Shandong, PR China
| | - Xing Tang
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
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9
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Jurić S, Jurić M, Siddique MAB, Fathi M. Vegetable Oils Rich in Polyunsaturated Fatty Acids: Nanoencapsulation Methods and Stability Enhancement. FOOD REVIEWS INTERNATIONAL 2020. [DOI: 10.1080/87559129.2020.1717524] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Slaven Jurić
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
| | - Marina Jurić
- Department of Food Chemistry, Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - Md Abu Bakar Siddique
- Department of Agriculture and Food Science, University College Dublin (UCD) Belfield, Dublin, Ireland
| | - Milad Fathi
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
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Xu Y, Carradori D, Alhouayek M, Muccioli GG, Cani PD, Préat V, Beloqui A. Size Effect on Lipid Nanocapsule-Mediated GLP-1 Secretion from Enteroendocrine L Cells. Mol Pharm 2017; 15:108-115. [DOI: 10.1021/acs.molpharmaceut.7b00742] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yining Xu
- Advanced
Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Dario Carradori
- Advanced
Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Mireille Alhouayek
- Bioanalysis
and Pharmacology of Bioactive Lipids, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Giulio G. Muccioli
- Bioanalysis
and Pharmacology of Bioactive Lipids, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Patrice D. Cani
- Metabolism
and Nutrition Group, Louvain Drug Research Institute, WELBIO (Walloon
Excellence in Life sciences and BIOtechnology), Université catholique de Louvain, 1200 Brussels, Belgium
| | - Véronique Préat
- Advanced
Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Ana Beloqui
- Advanced
Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
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Wang P, Kang W, Yang H, Zhao Y, Yin X, Zhu Z, Zhang X. The N-allyl substituted effect on wormlike micelles and salt tolerance of a C 22-tailed cationic surfactant. SOFT MATTER 2017; 13:7425-7432. [PMID: 28967008 DOI: 10.1039/c7sm01322a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Wormlike micelles (WLMs) have been observed in a wide variety of cationic surfactants. Here we developed WLMs based on an N-allyl substituted cationic surfactant with an unsaturated C22-tail, N-erucamidopropyl-N,N-dimethyl-N-allyl-ammonium bromide (EDAA), and compared them with UC22AMPM at the same concentration. The viscoelasticity, aggregate microstructure and salt tolerance of EDAA solutions were investigated by rheology, surface tension and Cryo-TEM measurements. It was found that EDAA exhibited a higher viscosity and a high salt tolerance. Upon increasing the concentration of NaCl, the viscosity of wormlike micelles in the solutions continuously increased and reached ∼1.10 × 106 mP s at 200 mM. On further increasing the NaCl concentration to 2000 mM, the viscosity remained at ∼106 mP s without any reduction. But the viscosity of UC22AMPM solutions showed a drastic change with the increase of NaCl concentration. This drastic variation in rheological behavior is attributed to the presence of the N-allyl substituent. Besides, the EDAA also shows some advantages such as low overlapping concentration(∼2.2 mM) and stable viscosity over the whole pH range.
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Affiliation(s)
- Pengxiang Wang
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, Shandong, P. R. China.
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12
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Rheological Properties and Microstructure Transition in Mixture of Zwitterionic Surfactant, Anionic Surfactant and Salts in Sorbitol/H2O Solvent: 2. Effect of Salts and Sorbitol. J SURFACTANTS DETERG 2017. [DOI: 10.1007/s11743-017-2006-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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A biomimetic Au@BSA-DTA nanocomposites-based contrast agent for computed tomography imaging. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:565-570. [PMID: 28576022 DOI: 10.1016/j.msec.2017.04.127] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 04/20/2017] [Accepted: 04/21/2017] [Indexed: 01/24/2023]
Abstract
Early detection of cancer is increasingly important for being considered to increase the survival rate in the treatment process. The past decades years have witnessed the great progress in the biological detection application of gold nanoparticles. Herein, we reported a facile one-pot synthesis process to obtain gold nanoparticles (Au@BSA) with bovine serum albumin (BSA) as a biotemplate following with conjugation of diatrizoic acid (DTA) for a potential X-ray computed tomography (CT) imaging contrast agent (Au@BSA-DTA). The as-prepared biomimetic material was characterized systematically by several techniques. It was shown that the prepared biomaterial is colloid stable under the tested range of pH and temperature. The cell cytotoxicity assay, hemolytic assay and cell morphology observation showed that Au@BSA-DTA has good biocompatibility and hemocompatibility at a concentration of Au even up to 80μg/mL. Besides, the biomimetic material Au@BSA-DTA with double radiodense elements of Au and iodine displayed much stronger CT imaging effect compared with the traditional small molecule contrast agents, which paves the potential clinical application in cancer early diagnosis.
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Arshakyan GA, Zadymova NM. The effect of a lipophilic drug, felodipine, on the formation of nanoemulsions upon phase inversion induced by temperature variation. COLLOID JOURNAL 2017. [DOI: 10.1134/s1061933x16060028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Jia H, Chen L, Jia B, Zhang W. Factors Affecting the Phase-Inversion Temperature of Fatty Alcohol Ethoxylates. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2015.1055759] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Saberi AH, Fang Y, McClements DJ. Effect of salts on formation and stability of vitamin E-enriched mini-emulsions produced by spontaneous emulsification. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:11246-11253. [PMID: 25343750 DOI: 10.1021/jf503862u] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Emulsion-based delivery systems are being utilized to incorporate lipophilic bioactive components into various food, personal care, and pharmaceutical products. This study examined the influence of inorganic salts (NaCl and CaCl2) on the formation, stability, and properties of vitamin E-enriched emulsions prepared by spontaneous emulsification. These emulsions were simply formed by titration of a mixture of vitamin E acetate (VE), carrier oil (MCT), and nonionic surfactant (Tween 80) into an aqueous salt solution with continuous stirring. Salt type and concentration (0-1 N NaCl or 0-0.5 N CaCl2) did not have a significant influence on the initial droplet size of the emulsions. On the other hand, the isothermal and thermal stabilities of the emulsions depended strongly on salt levels. The cloud point of the emulsions decreased with increasing salt concentration, which was attributed to accelerated droplet coalescence in the presence of salts. Dilution (2-6 times) of the emulsions with water appreciably improved their thermal stability by increasing their cloud point, which was mainly attributed to the decrease in aqueous phase salt levels. The isothermal storage stability of the emulsions also depended on salt concentration; however, increasing the salt concentration decreased the rate of droplet growth, which was the opposite of its effect on thermal stability. Potential physicochemical mechanisms for these effects are discussed in terms of the influence of salt ions on van der Waals and electrostatic interactions. This study provides important information about the effect of inorganic salts on the formation and stability of vitamin E emulsions suitable for use in food, personal care, and pharmaceutical products.
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Affiliation(s)
- Amir Hossein Saberi
- Biopolymers and Colloids Laboratory, Department of Food Science, University of Massachusetts-Amherst , Amherst, Massachusetts 01003, United States
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19
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Pang C, Cui H, Wang C. Cu@SiO2 nanowires: synthesis, cathodoluminescence and SERS response. RSC Adv 2014. [DOI: 10.1039/c4ra04597a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cu@SiO2 nanowires have been fabricated on a Cu substrate via simple thermal evaporation of SiO within a high-frequency induction furnace.
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Affiliation(s)
- Chunlei Pang
- State Key Laboratory of Optoelectronic Materials and Technologies
- School of Physics Science and Engineering
- Sun Yat-sen (Zhongshan) University
- Guangzhou 510275, People's Republic of China
| | - Hao Cui
- State Key Laboratory of Optoelectronic Materials and Technologies
- School of Physics Science and Engineering
- Sun Yat-sen (Zhongshan) University
- Guangzhou 510275, People's Republic of China
- The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province
| | - Chengxin Wang
- State Key Laboratory of Optoelectronic Materials and Technologies
- School of Physics Science and Engineering
- Sun Yat-sen (Zhongshan) University
- Guangzhou 510275, People's Republic of China
- The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province
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Abdel-Rahem RA. Influence of Glycerol and Temperature on the Phase Behavior and Micellization of CTAB and SDS in Aqueous Solutions. J DISPER SCI TECHNOL 2013. [DOI: 10.1080/01932691.2012.731647] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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22
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Fathi M, Mozafari M, Mohebbi M. Nanoencapsulation of food ingredients using lipid based delivery systems. Trends Food Sci Technol 2012. [DOI: 10.1016/j.tifs.2011.08.003] [Citation(s) in RCA: 417] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Lipid nanocapsule-based gels for enhancement of transdermal delivery of ketorolac tromethamine. JOURNAL OF DRUG DELIVERY 2011; 2011:571272. [PMID: 22175029 PMCID: PMC3228290 DOI: 10.1155/2011/571272] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 09/06/2011] [Indexed: 11/17/2022]
Abstract
Previous reports show ineffective transdermal delivery of ketorolac by nanostructured lipid carriers (NLCs). The aim of the present work was enhancement of transdermal delivery of ketorolac by another colloidal carriers, lipid nanocapsules (LNCs). LNCs were prepared by emulsification with phase transition method and mixed in a Carbomer 934P gel base with oleic acid or propylene glycol as penetration enhancers. Permeation studies were performed by Franz diffusion cell using excised rat abdominal skin. Aerosil-induced rat paw edema model was used to investigate the in vivo performance. LNCs containing polyethylene glycol hydroxyl stearate, lecithin in Labrafac as the oily phase, and dilution of the primary emulsion with 3.5-fold volume of cold water produced the optimized nanoparticles. The 1% Carbomer gel base containing 10% oleic acid loaded with nanoparticles enhanced and prolonged the anti-inflammatory effects of this drug to more than 12 h in Aerosil-induced rat paw edema model.
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Vrignaud S, Anton N, Gayet P, Benoit JP, Saulnier P. Reverse micelle-loaded lipid nanocarriers: A novel drug delivery system for the sustained release of doxorubicin hydrochloride. Eur J Pharm Biopharm 2011; 79:197-204. [DOI: 10.1016/j.ejpb.2011.02.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 02/14/2011] [Accepted: 02/15/2011] [Indexed: 10/18/2022]
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Lu T, Xia L, Wang X, Wang A, Zhang T. A dually effective inorganic salt at inducing obvious viscoelastic behavior of both cationic and anionic surfactant solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:9815-9822. [PMID: 21721509 DOI: 10.1021/la2018709] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Hydrazine nitrate (HN), an inorganic salt, was first found to have dual effects on inducing obvious viscoelasticity of both cationic and anionic surfactant solutions. It was interesting that the surfactant solutions exhibited characteristic wormlike micelle features with strong viscoelastic properties upon the addition of this inorganic salt. The rheological properties of the surfactant solutions have been measured and discussed. The apparent viscosity of the solutions showed a volcano change with an increase of the HN concentration. Correspondingly, the microstructures of the micelles in the solutions changed with the apparent viscosity. First, wormlike micelles began to form and grew with an increase of the HN concentration. Subsequently, the systems exhibited linear viscoelasticity with characteristics of a Maxwell fluid in the intermediate mass fraction range, which originated from a 3D entangled network of wormlike micelles. Finally, a transition from linear micelles to branched ones probably took place at higher HN contents. In addition, the origin of the dual effects brought by HN addition on inducing viscoelasticity in both cationic and anionic surfactant solutions was investigated.
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Affiliation(s)
- Ting Lu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People's Republic of China
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26
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Abdel-Rahem R. Effect of Glycerol on the Swelling of Multilamellar Vesicles Composed of Cetyltrimethylammonium Bromide and Sodium Hydroxy-Naphthoate. J DISPER SCI TECHNOL 2011. [DOI: 10.1080/01932691.2010.488131] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Mei Z, Xu J, Sun D. O/W nano-emulsions with tunable PIT induced by inorganic salts. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2010.11.069] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Liew JCL, Nguyen QD, Ngothai Y. Effect of sodium chloride on the formation and stability of n-dodecane nanoemulsions by the PIT method. ASIA-PAC J CHEM ENG 2010. [DOI: 10.1002/apj.445] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Iodinated blood pool contrast media for preclinical X-ray imaging applications – A review. Biomaterials 2010; 31:6249-68. [DOI: 10.1016/j.biomaterials.2010.04.066] [Citation(s) in RCA: 197] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Accepted: 04/29/2010] [Indexed: 11/23/2022]
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Anton N, Mojzisova H, Porcher E, Benoit JP, Saulnier P. Reverse micelle-loaded lipid nano-emulsions: new technology for nano-encapsulation of hydrophilic materials. Int J Pharm 2010; 398:204-9. [PMID: 20674723 DOI: 10.1016/j.ijpharm.2010.07.039] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2010] [Revised: 07/17/2010] [Accepted: 07/21/2010] [Indexed: 11/25/2022]
Abstract
This study presents novel, recently patented technology for encapsulating hydrophilic species in lipid nano-emulsions. The method is based on the phase-inversion temperature method (the so-called PIT method), which follows a low-energy and solvent-free process. The nano-emulsions formed are stable for months, and exhibit droplet sizes ranging from 10 to 200 nm. Hydrophilic model molecules of fluorescein sodium salt are encapsulated in the oily core of these nano-emulsion droplets through their solubilisation in the reverse micellar system. As a result, original, multi-scaled nano-objects are generated with a 'hydrophilic molecule in a reverse-micelles-in-oil-in-water' structure. Once fluorescein has been encapsulated it remains stable, for thermodynamic reasons, and the encapsulation yields can reach 90%. The reason why such complex objects can be formed is due to the soft method used (PIT method) which allows the conservation of the structure of the reverse micelles throughout the formulation process, up to their entrapment in the nano-emulsion droplets. In this study, we focus the investigation on the process itself, revealing its potential and limits. Since the formulation of nanocarriers for the encapsulation of hydrophilic substances still remains a challenge, this study may constitute a significant advance in this field.
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Affiliation(s)
- Nicolas Anton
- University of Strasbourg, Faculté de Pharmacie, F-67401 Illkirch Cedex, France.
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Anton N, Saulnier P, Gaillard C, Porcher E, Vrignaud S, Benoit JP. Aqueous-core lipid nanocapsules for encapsulating fragile hydrophilic and/or lipophilic molecules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:11413-11419. [PMID: 19788211 DOI: 10.1021/la901565q] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This paper presents the original method of producing aqueous-core lipid nanocapsule, able to encapsulate both hydrophilic and lipophilic species with relevant yields. The scope offered by the integration of both hydrophilic and lipophilic molecules within the same colloidal objects make this method a prime candidate for the numerous anticancer therapies for which chemotherapy frequently requires the association of several molecules. The proof of concept study is proposed here (i) describing in detail the formulation of such objects and their characterization (TEM, cryo-TEM, soft particle analysis), (ii) showing the encapsulation of hydrophilic species alone, using examples of very different molecular weights, such as a dye (methylene blue) and a protein (BSA-isothycianate fluorecein labeled), and (iii) showing the simultaneous encapsulation of hydrophilic (methylene blue) and lipophilic (also a dye, red Sudan III) species.
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Affiliation(s)
- Nicolas Anton
- CNRS 7199, Conception et Application de Molécules Bioactives, Pharmacie Biogalénique, Université de Strasbourg, Faculté de Pharmacie, BP 60024 F-67401 Illkirch Cedex, France.
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Anton N, Vandamme TF. The universality of low-energy nano-emulsification. Int J Pharm 2009; 377:142-7. [PMID: 19454306 DOI: 10.1016/j.ijpharm.2009.05.014] [Citation(s) in RCA: 268] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2009] [Revised: 05/07/2009] [Accepted: 05/08/2009] [Indexed: 11/15/2022]
Abstract
Extensive studies have been done on nano-emulsions and emulsification methods to provide nanometric-scaled templates for the formulation of nanoparticles. The so-called "low-energy" methods are of particular interest as they prevent the potential degradation of fragile encapsulated molecules. This work deals with new concepts in nano-emulsification using low-energy methods. Three-model ternary systems, water/nonionic surfactant/oil, were studied and compared. Nano-emulsions were generated using both spontaneous emulsification and the PIT method, so as to study the links between these two nano-emulsification methods. The influence of the composition and formulation variables on the nano-emulsion properties and emulsification procedures were thus investigated. This study pioneers the concept of the universality of low-energy nano-emulsification, proving that all these low-energy methods (i.e. spontaneous emulsification and the phase inversion temperature (PIT) method) are governed by a single unique mechanism. It thus provides a better understanding of low-energy nano-emulsification processes and notably the PIT method, useful in the fields of nanoparticle and nano-pharmaceutic formulations. These results are fundamental in establishing experimental procedures for the incorporation of drugs in nano-emulsions.
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Affiliation(s)
- Nicolas Anton
- CNRS 7199, Université de Strasbourg, Faculté de Pharmacie, Laboratoire de Conception et Application de Molécules Bioactives, équipe de Pharmacie Biogalénique, 74 route du Rhin BP 60024 F-67401 Illkirch Cedex, France.
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Huynh NT, Passirani C, Saulnier P, Benoit JP. Lipid nanocapsules: a new platform for nanomedicine. Int J Pharm 2009; 379:201-9. [PMID: 19409468 DOI: 10.1016/j.ijpharm.2009.04.026] [Citation(s) in RCA: 355] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2009] [Revised: 04/14/2009] [Accepted: 04/20/2009] [Indexed: 11/30/2022]
Abstract
Nanomedicine, an emerging new field created by the fusion of nanotechnology and medicine, is one of the most promising pathways for the development of effective targeted therapies with oncology being the earlier and the most notable beneficiary to date. Indeed, drug-loaded nanoparticles provide an ideal solution to overcome the low selectivity of the anticancer drugs towards the cancer cells in regards to normal cells and the induced severe side-effects, thanks to their passive and/or active targeting to cancer tissues. Liposome-based systems encapsulating drugs are already used in some cancer therapies (e.g. Myocet, Daunoxome, Doxil). But liposomes have some important drawbacks: they have a low capacity to encapsulate lipophilic drugs (even though it exists), they are manufactured through processes involving organic solvents, and they are leaky, unstable in biological fluids and more generally in aqueous solutions for being commercialized as such. We have developed new nano-cargos, the lipid nanocapsules, with sizes below the endothelium fenestration (phi<100 nm), that solve these disadvantages. They are prepared according to a solvent-free process and they are stable for at least one year in suspension ready for injection, which should reduce considerably the cost and convenience for treatment. Moreover, these new nano-cargos have the ability to encapsulate efficiently lipophilic drugs, offering a pharmaceutical solution for their intravenous administration. The lipid nanocapsules (LNCs) have been prepared according to an original method based on a phase-inversion temperature process recently developed and patented. Their structure is a hybrid between polymeric nanocapsules and liposomes because of their oily core which is surrounded by a tensioactive rigid membrane. They have a lipoprotein-like structure. Their size can be adjusted below 100 nm with a narrow distribution. Importantly, these properties confer great stability to the structure (physical stability>18 months). Blank or drug-loaded LNCs can be prepared, with or without PEG (polyethyleneglycol)ylation that is a key parameter that affects the vascular residence time of the nano-cargos. Other hydrophilic tails can also be grafted. Different anticancer drugs (paclitaxel, docetaxel, etoposide, hydroxytamoxifen, doxorubicin, etc.) have been encapsulated. They all are released according to a sustained pattern. Preclinical studies on cell cultures and animal models of tumors have been performed, showing promising results.
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Affiliation(s)
- N T Huynh
- Inserm U646, Université d'Angers, 10 rue André Boquel, F-49100 Angers, France
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Lin C, He G, Dong C, Liu H, Xiao G, Liu Y. Effect of oil phase transition on freeze/thaw-induced demulsification of water-in-oil emulsions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:5291-5298. [PMID: 18433153 DOI: 10.1021/la704079s] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Recently, there has been an increasing interest in the breakage of water-in-oil (W/O) emulsions by the freeze/thaw method. Most of the previous works focused on the phase transition of the water droplet phase. This paper emphasizes the effect of continuous oil phase transition. A series of oils with different freezing points were used as oil phases to produce model emulsions, which were then frozen and thawed. The emulsion whose oil phase froze before the water droplet phase did (OFBW) on cooling was readily demulsified with a dewatering ratio as high as over 80%, but the emulsion whose oil phase did not freeze when the water droplet phase did (NOFBW) was relatively hard to break. The difference in demulsification performance between them resulted from the distinction between their demulsification mechanisms via the analyses of the emulsion stability, emulsion crystallization/melting behaviors, oil phase physical properties, and wettability of the frozen oil phase, etc. For the OFBW emulsion, the first-frozen oil phase was ruptured by the volume expansion of the subsequently frozen droplet phase, and meanwhile, some liquid droplet phase was drawn into the fine gaps/crevices of the frozen oil phase to bridge droplets, which were considered to be essential to the emulsion breakage, whereas for the NOFBW emulsion, the demulsification was attributed to the collision mechanism proposed in our previous work. The findings may provide some criteria for selecting a proper oil phase in the emulsion liquid membrane (ELM) process and then offer an alternative approach to recycle the oil phase for continuous operation. This work may also be useful for emulsion stability against temperature cycling.
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Affiliation(s)
- Chang Lin
- State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science and Technology, Dalian University of Technology, Dalian, Liaoning 116012, China
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Constantinides PP, Chaubal MV, Shorr R. Advances in lipid nanodispersions for parenteral drug delivery and targeting. Adv Drug Deliv Rev 2008; 60:757-67. [PMID: 18096269 DOI: 10.1016/j.addr.2007.10.013] [Citation(s) in RCA: 121] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2007] [Accepted: 10/20/2007] [Indexed: 12/21/2022]
Abstract
Parenteral formulations, particularly intravascular ones, offer a unique opportunity for direct access to the bloodstream and rapid onset of drug action as well as targeting to specific organ and tissue sites. Triglyceride emulsions, liposomes and micellar solutions have been traditionally used to accomplish these tasks and there are several products on the market using these lipid formulations. The broader application of these lipid systems in parenteral drug delivery, however, particularly with new chemical entities, has been limited due primarily to the following reasons: a) only a small number of parenteral lipid excipients are approved, b) there is increasing number of drugs that are partially or not soluble in conventional oils and other lipid solvents, and c) the ongoing requirement for site-specific targeting and controlled drug release. Thus, there is growing need to expand the array of targetable lipid-based systems to deliver a wide variety of drugs and produce stable formulations which can be easily manufactured in a sterile form, are cost-effective and at least as safe and efficacious as the earlier developed systems. These advanced parenteral lipid-based systems are at various stages of preclinical and clinical development which include nanoemulsions, nanosuspensions and polymeric phospholipid micelles. This review article will showcase these parenteral lipid nanosystems and discuss advances in relation to formulation development, processing and manufacturing, and stability assessment. Factors controlling drug encapsulation and release and in vivo biodistribution will be emphasized along with in vitro/in vivo toxicity and efficacy case studies. Emerging lipid excipients and increasing applications of injectable lipid nanocarriers in cancer chemotherapy and other disease indications will be highlighted and in vitro/in vivo case studies will be presented. As these new parenteral lipid systems advance through the clinic and product launch, their therapeutic utility and value will certainly expand.
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Anton N, Benoit JP, Saulnier P. Design and production of nanoparticles formulated from nano-emulsion templates-a review. J Control Release 2008; 128:185-99. [PMID: 18374443 DOI: 10.1016/j.jconrel.2008.02.007] [Citation(s) in RCA: 651] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2007] [Accepted: 02/11/2008] [Indexed: 11/30/2022]
Abstract
A considerable number of nanoparticle formulation methods are based on nano-emulsion templates, which in turn are generated in various ways. It must therefore be taken into account that active principles and drugs encapsulated in nanoparticles can potentially be affected by these nano-emulsion formulation processes. Such potential differences may include drug sensitivity to temperature, high-shear devices, or even contact with organic solvents. Likewise, nano-emulsion formulation processes must be chosen in function of the selected therapeutic goals of the nano-carrier suspension and its administration route. This requires the nanoparticle formulation processes (and thus the nano-emulsion formation methods) to be more adapted to the nature of the encapsulated drugs, as well as to the chosen route of administration. Offering a comprehensive review, this paper proposes a link between nano-emulsion formulation methods and nanoparticle generation, while at the same time bearing in mind the above-mentioned parameters for active molecule encapsulation. The first part will deal with the nano-emulsion template through the different formulation methods, i.e. high energy methods on the one hand, and low-energy ones (essentially spontaneous emulsification and the phase inversion temperature (PIT) method) on the other. This will be followed by a review of the different families of nanoparticles (i.e. polymeric or lipid nanospheres and nanocapsules) highlighting the links (or potential links) between these nanoparticles and the different nano-emulsion formulation methods upon which they are based.
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Affiliation(s)
- Nicolas Anton
- Inserm U646, Ingénierie de la vectorisation particulaire, 10 rue A. Boquel, F-49100 Angers, France.
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Anton N, Benoit JP, Saulnier P. Particular conductive behaviors of emulsion phase inverting. J Drug Deliv Sci Technol 2008. [DOI: 10.1016/s1773-2247(08)50015-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Anton N, Gayet P, Benoit JP, Saulnier P. Nano-emulsions and nanocapsules by the PIT method: An investigation on the role of the temperature cycling on the emulsion phase inversion. Int J Pharm 2007; 344:44-52. [PMID: 17592746 DOI: 10.1016/j.ijpharm.2007.04.027] [Citation(s) in RCA: 160] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2007] [Revised: 04/16/2007] [Accepted: 04/25/2007] [Indexed: 11/15/2022]
Abstract
This paper focuses on the phenomenological understanding of temperature cycling process, applied to the phase inversion temperature (PIT) method. The role of this particular thermal treatment on emulsions phase inversion, as well as its ability to generate nano-emulsions have been investigated. In order to propose a general study, we have based our investigations on a given formulation of nano-emulsions classically proposed in the literature [Heurtault, B., Saulnier, P., Pech, B., Proust, J. E., Benoit, J.P., 2002. A novel phase inversion-based process for the preparation of lipid nanocarriers. Pharm. Res. 19, 875; Lamprecht, A., Bouligand, Y, Benoit, J.P., 2002. New lipid nanocapsules exhibit sustained release properties for amiodarone. J. Control. Release 84, 59-68], using a polyethoxylated model nonionic surfactant, a polyoxyehtylene-660-12-hydroxy stearate, stabilizing the emulsion composed of caprilic triglycerides (triglycerides medium chains), salt water (and also phospholipidic amphiphiles neutral for the formulation). Characterization of nano-emulsions was performed by dynamic light scattering (DLS) which provides the hydrodynamic diameter, but also the polydispersity index (PDI), as a fundamental criteria to judge the quality of the dispersion. Another aspect of the characterization was done following the emulsion inversion and structure by electrical conductivity through the temperature scan. Overall, the role such a temperature cycling process on the formulation of nano-emulsions appears to be relatively important, and globally enhanced as the surfactant concentration is lowered. Actually, both the hydrodynamic diameter and the PDI decrease as a function of the number and temperature cycles up to stabilize a steady state. Eventually, such a cycling process allows the generation of nano-emulsions in ranges of compositions largely expanded when compared with the classical PIT method. These general and interesting trends emerge from the results, are discussed and essentially explained by regarding the behavior of the nonionic surfactants towards the water/oil interface, linking partitioning coefficients, temperature variation, and surfactant water/oil interfacial concentration. In that way, this paper proposes new insights into the phenomena governing the PIT method, by originally investigating the temperature cycling process.
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Affiliation(s)
- Nicolas Anton
- University of Angers, Inserm U646, Ingénierie de la vectorisation particulaire, 10 rue A. Boquel, F-49100 Angers, France.
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