151
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Rajeev A, Erapalapati V, Madhavan N, Basavaraj MG. Conversion of expanded polystyrene waste to nanoparticles via nanoprecipitation. J Appl Polym Sci 2015. [DOI: 10.1002/app.42904] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Ashna Rajeev
- Department of Chemical Engineering; Indian Institute of Technology Madras; Chennai 600036 India
| | | | - Nandita Madhavan
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Madivala G. Basavaraj
- Department of Chemical Engineering; Indian Institute of Technology Madras; Chennai 600036 India
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152
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Mossotti R, Ferri A, Innocenti R, Zelenková T, Dotti F, Marchisio DL, Barresi AA. Cotton fabric functionalisation with menthol/PCL micro- and nano-capsules for comfort improvement. J Microencapsul 2015; 32:650-60. [PMID: 26247351 DOI: 10.3109/02652048.2015.1073386] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Cotton functionalisation with poly-ɛ-caprolactone (PCL) micro- and nano-capsules containing menthol was carried out with the aim of introducing a long-lasting refreshing sensation. MATERIALS AND METHODS The preparation of the polymer micro- and nano-capsules was carried out by solvent displacement technique. A confined impinging jets mixer was used in order to ensure fast mixing and generate a homogeneous environment where PCL and menthol can self-assemble. RESULTS The micro- and nano-capsules and the functionalised fabrics were characterised by means of DSC, FT-IR spectroscopy and SEM imaging. Micro- and nano-capsules of different size, from about 200 to about 1200 nm, were obtained varying menthol to PCL ratio (from 0.76 to 8), overall concentration and flow rate (i.e. mixing conditions). The inclusion of menthol was confirmed by DSC analysis. DISCUSSION AND CONCLUSION A patch test was carried out by 10 volunteers. Micro-capsules were found to be effective in conferring the fabric a refreshing sensation without altering skin physiology.
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Affiliation(s)
- Raffaella Mossotti
- a Istituto per lo Studio delle Macromolecole CNR ISMAC , Biella , Italy and
| | - Ada Ferri
- b Department of Applied Science and Technology , Politecnico di Torino , Torino , Italy
| | - Riccardo Innocenti
- a Istituto per lo Studio delle Macromolecole CNR ISMAC , Biella , Italy and
| | - Tereza Zelenková
- b Department of Applied Science and Technology , Politecnico di Torino , Torino , Italy
| | - Francesca Dotti
- b Department of Applied Science and Technology , Politecnico di Torino , Torino , Italy
| | - Daniele L Marchisio
- b Department of Applied Science and Technology , Politecnico di Torino , Torino , Italy
| | - Antonello A Barresi
- b Department of Applied Science and Technology , Politecnico di Torino , Torino , Italy
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153
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Yukuyama MN, Ghisleni DDM, Pinto TJA, Bou-Chacra NA. Nanoemulsion: process selection and application in cosmetics - a review. Int J Cosmet Sci 2015; 38:13-24. [DOI: 10.1111/ics.12260] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 06/30/2015] [Indexed: 01/01/2023]
Affiliation(s)
- M. N. Yukuyama
- Faculty of Pharmaceutical Sciences; University of Sao Paulo; Avenida Professor Lineu Prestes 508 Butanta, Sao Paulo SP Brazil
| | - D. D. M. Ghisleni
- Faculty of Pharmaceutical Sciences; University of Sao Paulo; Avenida Professor Lineu Prestes 508 Butanta, Sao Paulo SP Brazil
| | - T. J. A. Pinto
- Faculty of Pharmaceutical Sciences; University of Sao Paulo; Avenida Professor Lineu Prestes 508 Butanta, Sao Paulo SP Brazil
| | - N. A. Bou-Chacra
- Faculty of Pharmaceutical Sciences; University of Sao Paulo; Avenida Professor Lineu Prestes 508 Butanta, Sao Paulo SP Brazil
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154
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Influence of the nanoprecipitation conditions on the supramolecular structure of squalenoyled nanoparticles. Eur J Pharm Biopharm 2015. [PMID: 26210010 DOI: 10.1016/j.ejpb.2015.07.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hydrophobic organic compounds dissolved in a polar solvent can self-assemble into nanoparticles (NPs) upon nanoprecipitation into water. In the present study, we have investigated the structure of squalenacetyl-adenosine (SQAc-Ad) nanoparticles which were previously found to exhibit impressive neuroprotective activity. When obtained by nanoprecipitation of a SQAc-Ad ethanolic solution into water, two different supramolecular organizations of SQAc-Ad NPs were evidenced, depending on the water-to-ethanol volume ratio. It has been shown that a fraction of the solvent remained associated with the NPs, despite prolonged evaporation under reduced pressure after nanoprecipitation, and that this residual solvent dramatically affected their structure. This study points to the importance of being in the "Ouzo" region to minimize the amount and effect of residual solvent and to control the structure of NPs.
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155
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156
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Li T, Paliy M, Wang X, Kobe B, Lau WM, Yang J. Facile one-step photolithographic method for engineering hierarchically nano/microstructured transparent superamphiphobic surfaces. ACS APPLIED MATERIALS & INTERFACES 2015; 7:10988-10992. [PMID: 25942618 DOI: 10.1021/acsami.5b01926] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
It is of great value to develop a simple, controllable, and scalable method of making superamphiphobic surfaces. Here we present a facile one-step photolithographic method to engineer superamphiphobic surfaces consisting of photoresist micropillars decorated with nanoparticles of the same photoresist. The surface or coating is optically transparent and versatile, and can be fabricated on a broad range of substrates including stretchable elastomers. During the development of the micropillar array, photoresist nanoparticles are spontaneously grown on the micropillars by a well-controlled emulsification process of the un-cross-linked residual photoresist. This creates a hierarchical structure with a re-entrant and convex morphology which is the key for superoleophobicity. The chemical bonding between the nanoparticles and the micropillars is strong producing a robust and durable coating. This facile method is scalable and industry-applicable for a variety of applications such as self-cleaning, antifouling, and deicing/antifrosting.
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Affiliation(s)
- Tingjie Li
- †Department of Mechanical and Materials Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Maxim Paliy
- †Department of Mechanical and Materials Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada
- ‡Surface Science Western, The University of Western Ontario, London, Ontario N6G 0J3, Canada
| | - Xiaolong Wang
- †Department of Mechanical and Materials Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada
| | - Brad Kobe
- ‡Surface Science Western, The University of Western Ontario, London, Ontario N6G 0J3, Canada
| | - Woon-Ming Lau
- ‡Surface Science Western, The University of Western Ontario, London, Ontario N6G 0J3, Canada
| | - Jun Yang
- †Department of Mechanical and Materials Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada
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157
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Reisch A, Runser A, Arntz Y, Mély Y, Klymchenko AS. Charge-controlled nanoprecipitation as a modular approach to ultrasmall polymer nanocarriers: making bright and stable nanoparticles. ACS NANO 2015; 9:5104-5116. [PMID: 25894117 DOI: 10.1021/acsnano.5b00214] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Ultrasmall polymer nanoparticles are rapidly gaining importance as nanocarriers for drugs and contrast agents. Here, a straightforward modular approach to efficiently loaded and stable sub-20-nm polymer particles is developed. In order to obtain ultrasmall polymer nanoparticles, we investigated the influence of one to two charged groups per polymer chain on the size of particles obtained by nanoprecipitation. Negatively charged carboxylate and sulfonate or positively charged trimethylammonium groups were introduced into the polymers poly(d,l-lactide-co-glycolide) (PLGA), polycaprolactone (PCL), and poly(methyl methacrylate) (PMMA). According to dynamic light scattering, atomic force and electron microscopy, the presence of one to two charged groups per polymer chain can strongly reduce the size of polymer nanoparticles made by nanoprecipitation. The particle size can be further decreased to less than 15 nm by decreasing the concentration of polymer in the solvent used for nanoprecipitation. We then show that even very small nanocarriers of 15 nm size preserve the capacity to encapsulate large amounts of ionic dyes with bulky counterions at efficiencies >90%, which generates polymer nanoparticles 10-fold brighter than quantum dots of the same size. Postmodification of their surface with the PEG containing amphiphiles Tween 80 and pluronic F-127 led to particles that were stable under physiological conditions and in the presence of 10% fetal bovine serum. This modular route could become a general method for the preparation of ultrasmall polymer nanoparticles as nanocarriers of contrast agents and drugs.
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Affiliation(s)
- Andreas Reisch
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74 Route du Rhin, 67401 Illkirch, France
| | - Anne Runser
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74 Route du Rhin, 67401 Illkirch, France
| | - Youri Arntz
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74 Route du Rhin, 67401 Illkirch, France
| | - Yves Mély
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74 Route du Rhin, 67401 Illkirch, France
| | - Andrey S Klymchenko
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74 Route du Rhin, 67401 Illkirch, France
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158
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Beck-Broichsitter M, Nicolas J, Couvreur P. Solvent selection causes remarkable shifts of the "Ouzo region" for poly(lactide-co-glycolide) nanoparticles prepared by nanoprecipitation. NANOSCALE 2015; 7:9215-9221. [PMID: 25924854 DOI: 10.1039/c5nr01695a] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Polymer nanoparticles (NPs) offer versatile novel biological features of interest for drug delivery applications. "Ouzo diagrams" allowed for a systematic manufacture of specified colloidal formulations by the widely used nanoprecipitation process. Surprisingly, despite the well-documented relevance of the applied organic solvent for nanoprecipitation, its effect on the actual status of the "Ouzo region" was so far not studied. Herein, investigations were undertaken to account for the potential impact of the solvent type on the "Ouzo diagrams" for poly(lactide-co-glycolide) (PLGA) and tetrahydrofuran (THF), 1,4-dioxane, acetone and dimethyl sulfoxide (DMSO). The "Ouzo region" shifted considerably to higher polymer fractions upon solvent change (rank order: THF < 1,4-dioxane < acetone < DMSO). Assuming a one-to-one transformation of detached PLGA-bearing solvent droplets (droplet diameter for THF: ∼800 nm, 1,4-dioxane: ∼700 nm, acetone: ∼500 nm and DMSO: ∼300 nm) into non-divisible polymer aggregates upon solvent displacement, facilitated to predict the size of NPs found within the "Ouzo region" (size range: 40-200 nm). In conclusion, application of "Ouzo diagrams" is a valuable tool for drug delivery research and will most-likely replace the "trial-and-error"-approach to identify the operating window for the production of stable colloidal formulations by the nanoprecipitation technique.
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Affiliation(s)
- Moritz Beck-Broichsitter
- Institut Galien Paris-Sud, CNRS UMR 8612, University of Paris-Sud, F-92196, Châtenay-Malabry Cedex, France.
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159
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Beck-Broichsitter M, Nicolas J, Couvreur P. Design attributes of long-circulating polymeric drug delivery vehicles. Eur J Pharm Biopharm 2015; 97:304-17. [PMID: 25857838 DOI: 10.1016/j.ejpb.2015.03.033] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 03/11/2015] [Accepted: 03/23/2015] [Indexed: 02/03/2023]
Abstract
Following systemic administration polymeric drug delivery vehicles allow for a controlled and targeted release of the encapsulated medication at the desired site of action. For an elevated and organ specific accumulation of their cargo, nanocarriers need to avoid opsonization, activation of the complement system and uptake by macrophages of the mononuclear phagocyte system. In this respect, camouflaged vehicles revealed a delayed elimination from systemic circulation and an improved target organ deposition. For instance, a steric shielding of the carrier surface by poly(ethylene glycol) substantially decreased interactions with the biological environment. However, recent studies disclosed possible deficits of this approach, where most notably, poly(ethylene glycol)-modified drug delivery vehicles caused significant immune responses. At present, identification of novel potential carrier coating strategies facilitating negligible immune reactions is an emerging field of interest in drug delivery research. Moreover, physical carrier properties including geometry and elasticity seem to be very promising design attributes to surpass numerous biological barriers, in order to improve the efficacy of the delivered medication.
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Affiliation(s)
- Moritz Beck-Broichsitter
- Institut Galien UMR CNRS 8612, Faculté de Pharmacie, Université Paris-Sud XI, Châtenay-Malabry, France
| | - Julien Nicolas
- Institut Galien UMR CNRS 8612, Faculté de Pharmacie, Université Paris-Sud XI, Châtenay-Malabry, France
| | - Patrick Couvreur
- Institut Galien UMR CNRS 8612, Faculté de Pharmacie, Université Paris-Sud XI, Châtenay-Malabry, France.
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160
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Low-energy formation of edible nanoemulsions by spontaneous emulsification: Factors influencing particle size. J FOOD ENG 2015. [DOI: 10.1016/j.jfoodeng.2014.09.003] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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161
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Zhao XF, Winter WT. Cellulose/Cellulose-Based Nanospheres: Perspectives and Prospective. Ind Biotechnol (New Rochelle N Y) 2015. [DOI: 10.1089/ind.2014.0030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Xing Fei Zhao
- Department of Chemistry and Cellulose Research Institute, State University of New York College of Environmental Science and Forestry (SUNY-ESF), Syracuse, NY
| | - William T. Winter
- Department of Chemistry and Cellulose Research Institute, State University of New York College of Environmental Science and Forestry (SUNY-ESF), Syracuse, NY
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162
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Krishna R. Serpentine diffusion trajectories and the Ouzo effect in partially miscible ternary liquid mixtures. Phys Chem Chem Phys 2015; 17:27428-36. [DOI: 10.1039/c5cp04520g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Equilibration trajectories when two homogeneous mixtures of different compositions brought into contact with each other often follow curvilinear paths that may penetrate into meta-stable regions.
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Affiliation(s)
- Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- The Netherlands
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163
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Abstract
Diffusional coupling effects may cause uphill transport of a species against its concentration gradient. Transient overshoots and serpentine equilibration trajectories in composition space are fingerprints of uphill diffusion. Serpentine diffusion trajectories may enter meta-stable zones, leading to spontaneous emulsification and the Ouzo effect.
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Affiliation(s)
- Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- 1098 XH Amsterdam
- The Netherlands
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164
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Semi-Automated Nanoprecipitation-System—An Option for Operator Independent, Scalable and Size Adjustable Nanoparticle Synthesis. Pharm Res 2014; 32:1859-63. [DOI: 10.1007/s11095-014-1612-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 12/15/2014] [Indexed: 12/20/2022]
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165
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Valetti S, Mura S, Noiray M, Arpicco S, Dosio F, Vergnaud J, Desmaële D, Stella B, Couvreur P. Peptide Conjugation: Before or After Nanoparticle Formation? Bioconjug Chem 2014; 25:1971-83. [DOI: 10.1021/bc5003423] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sabrina Valetti
- Université Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
- CNRS UMR 8612, Institut Galien Paris-Sud, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
- Dipartimento
di Scienza e Tecnologia del Farmaco, Università di Torino, 9 via Pietro
Giuria, 10125 Torino, Italy
| | - Simona Mura
- Université Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
- CNRS UMR 8612, Institut Galien Paris-Sud, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
| | - Magali Noiray
- Université Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
- CNRS UMR 8612, Institut Galien Paris-Sud, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
| | - Silvia Arpicco
- Dipartimento
di Scienza e Tecnologia del Farmaco, Università di Torino, 9 via Pietro
Giuria, 10125 Torino, Italy
| | - Franco Dosio
- Dipartimento
di Scienza e Tecnologia del Farmaco, Università di Torino, 9 via Pietro
Giuria, 10125 Torino, Italy
| | - Juliette Vergnaud
- Université Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
- CNRS UMR 8612, Institut Galien Paris-Sud, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
| | - Didier Desmaële
- Université Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
- CNRS UMR 8612, Institut Galien Paris-Sud, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
| | - Barbara Stella
- Dipartimento
di Scienza e Tecnologia del Farmaco, Università di Torino, 9 via Pietro
Giuria, 10125 Torino, Italy
| | - Patrick Couvreur
- Université Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
- CNRS UMR 8612, Institut Galien Paris-Sud, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry cedex, France
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166
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Gitsov I, Berlinova IV, Vladimirov NG. Synthesis and characterization of novel amphiphilic super-H copolymers with linear-dendritic architecture. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27318] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ivan Gitsov
- Department of Chemistry; College of Environmental Science and Forestry, State University of New York; Syracuse New York 13210
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167
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Abstract
The use of polymers from natural resources can bring many benefits for novel polymeric nanoparticle systems. Such polymers have a variety of beneficial properties such as biodegradability and biocompatibility, they are readily available on large scale and at low cost. As the amount of fossil fuels decrease, their application becomes more interesting even if characterization is in many cases more challenging due to structural complexity, either by broad distribution of their molecular weights (polysaccharides, polyesters, lignin) or by complex structure (proteins, lignin). This review summarizes different sources and methods for the preparation of biopolymer-based nanoparticle systems for various applications.
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Affiliation(s)
- Frederik R. Wurm
- Physical Chemistry of Polymers, Max Planck Institute for Polymer ResearchMainz, Germany
| | - Clemens K. Weiss
- Life Sciences and Engineering, University of Applied Sciences BingenBingen, Germany
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168
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Chiu SJ, Wang SY, Chou HC, Liu YL, Hu TM. Versatile synthesis of thiol- and amine-bifunctionalized silica nanoparticles based on the ouzo effect. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:7676-7686. [PMID: 24927298 DOI: 10.1021/la501571u] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this article, we report a novel, nanoprecipitation-based method for preparing silica nanoparticles with thiol and amine cofunctionalization. (3-Mercaptopropyl)trimethoxysilane (MPTMS) and 3-aminopropyltrimethoxysilane (APTMS) were used as the organosilane precursors, which were subjected to acid-catalyzed polycondensation in an organic phase containing a water-miscible solvent (e.g., dimethyl sulfoxide). A pale colloidal solution could be immediately formed when the preincubated organic phase was directly injected into water. The initial composition ratio between MPTMS and APTMS is an important factor governing the formation of nanoparticles. Specifically, large, unstable micrometer-sized particles were formed for preparation using MPTMS as the sole silane source. In contrast, when APTMS was used alone, no particles could be formed. By reducing the fraction of APTMS (or increasing that of MPTMS) in the initial mixture of organosilanes, the formation of nanometer-sized particles occurred at a critical fraction of APTMS (i.e., 25%). Remarkably, a tiny fraction (e.g., 1%) of APTMS was sufficient to produce stable nanoparticles with a hydrodynamic diameter of about 200 nm. Other factors that would also affect particle formation were determined. Moreover, an interesting temperature effect on particle formation was observed. The TEM micrographs show spherical nanospheres with mean sizes of 130-150 nm in diameter. The solid-state (29)Si NMR spectra demonstrate that the hybrid silica materials contain fully and partially condensed silicon structures. The bifunctionalized silica nanoparticles have positive zeta potentials whose magnitudes are positively correlated with the amount of APTMS. The total thiol content, however, is negatively correlated with the amount of APTMS. The cationic nanoparticles can bind an antisense oligonucleotide in a composition-dependent manner.
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Affiliation(s)
- Shih-Jiuan Chiu
- School of Pharmacy, College of Pharmacy, Taipei Medical University , Taipei 11031, Taiwan ROC
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169
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Kowacz M, Esperança JMSS, Rebelo LPN. Spontaneous emulsification in ionic liquid/water systems and its use for templating of solids. SOFT MATTER 2014; 10:3798-3805. [PMID: 24705788 DOI: 10.1039/c4sm00213j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report on the spontaneous formation of nano-sized ionic liquid/water (IL/W) emulsions in a simple system solely composed of an IL and aqueous solution of an inorganic salt. The IL ions play a dual role, that of both a surfactant and the dispersed phase. No extra surfactant is needed to promote emulsification. Droplets generation at the IL/W interface is captured by nanoparticulate and porous films that imprint the morphology of this unstable interface. The emulsion droplets are employed to create core-shell microcrystals with potential functionality.
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Affiliation(s)
- Magdalena Kowacz
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal.
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170
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Fernandes LS, Cellet TS, Souza EM, Sayer C, Rubira AF, Dariva C, Oliveira JA. Development of a system by atomization for the formation of polymeric particles in micro and sub-micro scales. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.03.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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171
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Yan X, Delgado M, Fu A, Alcouffe P, Gouin SG, Fleury E, Katz JL, Ganachaud F, Bernard J. Simple but Precise Engineering of Functional Nanocapsules through Nanoprecipitation. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402825] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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172
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Yan X, Delgado M, Fu A, Alcouffe P, Gouin SG, Fleury E, Katz JL, Ganachaud F, Bernard J. Simple but Precise Engineering of Functional Nanocapsules through Nanoprecipitation. Angew Chem Int Ed Engl 2014; 53:6910-3. [DOI: 10.1002/anie.201402825] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 03/28/2014] [Indexed: 01/19/2023]
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173
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Lepeltier E, Bourgaux C, Couvreur P. Nanoprecipitation and the "Ouzo effect": Application to drug delivery devices. Adv Drug Deliv Rev 2014; 71:86-97. [PMID: 24384372 DOI: 10.1016/j.addr.2013.12.009] [Citation(s) in RCA: 233] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 12/05/2013] [Accepted: 12/19/2013] [Indexed: 12/20/2022]
Abstract
Biodegradable nanocarriers such as lipid- or polymer-based nanoparticles can be designed to improve the efficacy and reduce the toxic side effects of drugs. Under appropriate conditions, nanoprecipitation of a hydrophobic compound solution in a non-solvent can generate a dispersion of nanoparticles with a narrow distribution of sizes without the use of surfactant ("Ouzo" effect). The aim of this review is to present the main parameters controlling the nucleation and growth of aggregates in a supersaturated solution and the characteristics of the obtained nanoparticles. The importance of the kinetics of mixing of the solution containing the hydrophobic compound and the non-solvent is highlighted. Illustrative examples of polymeric nanoparticles for drug delivery or terpenoid-based nanoprodrugs obtained by nanoprecipitation are reported.
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174
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Fan H, Jin Z. Freezing polystyrene-b-poly(2-vinylpyridine) micelle nanoparticles with different nanostructures and sizes. SOFT MATTER 2014; 10:2848-2855. [PMID: 24668189 DOI: 10.1039/c3sm53049c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Herein we report how to control the nanostructures and sizes of polystyrene-b-poly(2-vinylpyridine) (PS-b-P2VP) nanoparticles via manipulating freezing in solvent-exchange. By characterizing and analyzing the distinct structural features of the obtained nanoparticles, we recognized that micelle self-assembly happens in the precipitation of PS-b-P2VP when water is added into the block copolymer (BCP) solution. Solvent properties significantly influence micelle types that are vesicles in acetone/H2O and spherical micelles in tetrahydrofuran/H2O, respectively, thus further inducing different frozen nanostructures of the obtained nanoparticles, onion-like in acetone/H2O and large compound micelles in tetrahydrofuran/H2O. By changing the concentration of the block copolymers and the Vsolvent/VH2O ratio to modify the freezing stage at which block copolymer micelles are frozen, we can further control the size of the nanoparticles. Moreover, small molecules (phosphotungstic acid, pyrene, 1-pyrenebutyric acid) can be trapped into the block copolymer nanoparticles via the freezing process. Their distribution in the nanoparticles relies not only on the solvent property, but also on their interactions with block copolymers. The hybrid nanoparticles with ordered distribution of small molecules can be further changed to partially-void nanoparticles. Our study demonstrated that manipulating the freezing of block copolymers in the solvent exchange process is a simple and controllable fabrication method to generate BCP nanoparticles with different architectures.
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Affiliation(s)
- Hailong Fan
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China.
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175
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Gross-Heitfeld C, Linders J, Appel R, Selbach F, Mayer C. Polyalkylcyanoacrylate Nanocapsules: Variation of Membrane Permeability by Chemical Cross-Linking. J Phys Chem B 2014; 118:4932-9. [DOI: 10.1021/jp5003098] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christoph Gross-Heitfeld
- Department of Chemistry, CeNIDE, University of Duisburg-Essen, Universitätsstraße 2, 45141 Essen, Germany
| | - Jürgen Linders
- Department of Chemistry, CeNIDE, University of Duisburg-Essen, Universitätsstraße 2, 45141 Essen, Germany
| | - Ralph Appel
- Department of Chemistry, CeNIDE, University of Duisburg-Essen, Universitätsstraße 2, 45141 Essen, Germany
| | - Florian Selbach
- Department of Chemistry, CeNIDE, University of Duisburg-Essen, Universitätsstraße 2, 45141 Essen, Germany
| | - Christian Mayer
- Department of Chemistry, CeNIDE, University of Duisburg-Essen, Universitätsstraße 2, 45141 Essen, Germany
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176
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Chou HC, Chiu SJ, Liu YL, Hu TM. Direct formation of S-nitroso silica nanoparticles from a single silica source. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:812-822. [PMID: 24410024 DOI: 10.1021/la4048215] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nitric oxide (NO) is a ubiquitous molecule in the body. Because of its multiple pathophysiologic roles, the potential for treating various diseases by the exogenous administration of NO has been under intensive investigation. However, the unstable, radical nature of NO poses a major challenge to the effective delivery of NO. Previously, silica nanoparticles synthesized by the traditional method have been developed into NO-carrying systems. In the present study, for the first time NO-carrying silica nanoparticles were prepared from a single silica precursor using a simple nanoprecipitation method. (3-Mercaptopropyl)-trimethoxysilane (MPTMS) was used as the sole silane source, which was subjected to acid-catalyzed S-nitrosation and condensation reactions in a one-pot organic phase. S-Nitroso silica nanoparticles (SNO-SiNPs) were then produced by injecting a smaller quantity of the organic phase into a larger amount of water without surfactants. Various preparation parameters were tested to obtain optimized conditions. Moreover, a phase diagram demonstrating the ouzo effect was constructed. The prepared SNO-SiNPs were spherical particles with a tunable size in the range of 100-400 nm. The nanoparticles in aqueous dispersions exhibited high colloid stability, possibly resulting from highly negatively charged surfaces. The result of solid-state (29)Si NMR shows the predominance of T(2) and T(3) silicon structures, suggesting that nanoparticles were formed from polycondensed silica species. In conclusion, NO-loaded silica nanoparticles have been directly prepared from a single silane precursor using a surfactant-free, low-energy, one-step nanoprecipitation approach. The method precludes the need for the initial formation of bare particles and subsequent functionalization steps.
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Affiliation(s)
- Hung-Chang Chou
- School of Pharmacy, National Defense Medical Center , Taipei 11490, Taiwan, ROC
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177
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Staff RH, Schaeffel D, Turshatov A, Donadio D, Butt HJ, Landfester K, Koynov K, Crespy D. Particle formation in the emulsion-solvent evaporation process. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:3514-3522. [PMID: 23606602 DOI: 10.1002/smll.201300372] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 03/06/2013] [Indexed: 06/02/2023]
Abstract
The mechanism of particle formation from submicrometer emulsion droplets by solvent evaporation is revisited. A combination of dynamic light scattering, fluorescence resonance energy transfer, zeta potential measurements, and fluorescence cross-correlation spectroscopy is used to analyze the colloids during the evaporation process. It is shown that a combination of different methods yields reliable and quantitative data for describing the fate of the droplets during the process. The results indicate that coalescence plays a minor role during the process; the relatively large size distribution of the obtained polymer colloids can be explained by the droplet distribution after their formation.
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Affiliation(s)
- Roland H Staff
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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178
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Stephan C, Schlawne C, Grass S, Waack IN, Ferenz KB, Bachmann M, Barnert S, Schubert R, Bastmeyer M, de Groot H, Mayer C. Artificial oxygen carriers based on perfluorodecalin-filled poly(n-butyl-cyanoacrylate) nanocapsules. J Microencapsul 2013; 31:284-92. [DOI: 10.3109/02652048.2013.843600] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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179
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Song Y, Yang H, Wang Y, Chen S, Li D, Zhang S, Zhang X. Controlling the assembly of graphene oxide by an electrolyte-assisted approach. NANOSCALE 2013; 5:6458-6463. [PMID: 23744059 DOI: 10.1039/c3nr01188g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this work, we studied the effects of salts on the self-assembly of two-dimensional graphene oxide (GO) driven by the dissolution of a sub-microliter droplet. Two kinds of structures were obtained. One was a GO snowball with small salt crystals inserted between sheets, which formed with a low initial concentration of insoluble salt in the GO dispersion. The other was a hybrid nanostructure containing NaCl or KCl crystals on a GO snowball, which formed with a high initial salt concentration in the suspension. In addition, we report the novel nanodent-decorated GO snowballs formed by templating the spontaneously formed microdroplets through ouzo effects. Such highly crumpled snowball structures may find applications in super-capacitors or catalyst supports.
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Affiliation(s)
- Yuting Song
- Department of Chemical and Biomolecular Engineering and Particulate Fluid Processing Center, University of Melbourne, VIC 3010, Australia
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180
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Aschenbrenner E, Bley K, Koynov K, Makowski M, Kappl M, Landfester K, Weiss CK. Using the polymeric ouzo effect for the preparation of polysaccharide-based nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:8845-8855. [PMID: 23777243 DOI: 10.1021/la4017867] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The polymeric ouzo effect, a nanoprecipitation process, is used for the preparation of polysaccharide-based nanoparticles. Dextran, pullulan, and starch were esterified with hydrophobic carboxylic acid anhydrides to obtain hydrophobic polysaccharides, which are insoluble in water. The additional introduction of methacroyl residues offers the possibility to cross-link the generated nanostructures, which become insoluble in organic solvents. To make use of the ouzo effect for the formation of nanoparticles, the polymer has to be soluble in an organic solvent, which is miscible with water. Here, acetone and THF were used. Immediately after the organic polymer solution is added to water, nanoparticles are generated. The size of the nanoparticles can be adjusted between 50 and 200 nm by changing the concentration of the initial polysaccharide solution. The degree of hydrophobic substitution was shown to have a very minor effect on the particle size. Dispersions with solids contents of up to 2% were obtained. Furthermore, the mechanical properties of the nanoparticles were investigated with force microscopy, and it was shown by fluorescence correlation spectroscopy that a fluorescent dye could be encapsulated in the nanoparticles by the applied nanoprecipitation procedure.
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181
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Cheng KW, Wong CC, Mattheolabakis G, Xie G, Huang L, Rigas B. Curcumin enhances the lung cancer chemopreventive efficacy of phospho-sulindac by improving its pharmacokinetics. Int J Oncol 2013; 43:895-902. [PMID: 23807084 PMCID: PMC3787887 DOI: 10.3892/ijo.2013.1995] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Accepted: 04/29/2013] [Indexed: 12/17/2022] Open
Abstract
Phospho-sulindac (PS) is a safe sulindac derivative with promising anticancer efficacy in colon cancer. We evaluated whether its combination with curcumin could enhance the efficacy in the treatment of lung cancer. Curcumin, the principal bioactive component in turmeric, has demonstrated versatile capabilities to modify the therapeutic efficacy of a wide range of anticancer agents. Here, we evaluated the effect of co-administration of curcumin on the anticancer activity of PS in a mouse xenograft model of human lung cancer. Curcumin enhanced the cellular uptake of PS in human lung and colon cancer cell lines. To assess the potential synergism between curcumin and PS in vivo, curcumin was suspended in 10% Tween-80 or formulated in micellar nanoparticles and given to mice by oral gavage prior to the administration of PS. Both formulations of curcumin significantly improved the pharmacokinetic profiles of PS, with the 10% Tween-80 suspension being much more effective than the nanoparticle formation. However, curcumin did not exhibit any significant modification of the metabolite profile of PS. Furthermore, in a mouse subcutaneous xenograft model of human lung cancer, PS (200 mg/kg) in combination with curcumin (500 mg/kg) suspended in 10% Tween-80 (51% inhibition, p<0.05) was significantly more efficacious than PS plus micelle curcumin (30%) or PS (25%) or curcumin alone (no effect). Consistent with the improved pharmacokinetics, the combination treatment group had higher levels of PS and its metabolites in the xenografts compared to PS alone. Our results show that curcumin substantially improves the pharmacokinetics of PS leading to synergistic inhibition of the growth of human lung cancer xenografts, representing a promising drug combination.
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Affiliation(s)
- Ka-Wing Cheng
- Division of Cancer Prevention, Department of Medicine, Stony Brook University, Stony Brook, NY 11794-8173, USA
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182
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Fuchs AV, Kotman N, Andrieu J, Mailänder V, Weiss CK, Landfester K. Enzyme cleavable nanoparticles from peptide based triblock copolymers. NANOSCALE 2013; 5:4829-4839. [PMID: 23612962 DOI: 10.1039/c3nr00706e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A solid-phase synthesis based approach towards protease cleavable polystyrene-peptide-polystyrene triblock copolymers and their formulation to nanoparticulate systems is presented. These nanoparticles are suitable for the optical detection of an enzyme and have the potential for application as a drug delivery system. Two different peptide sequences, one cleaved by trypsin (GFF), the other by hepsin (RQLRVVGG), a protease overexpressed in early stages of prostate cancer, are used as the central part of the triblock. For optical detection a fluorophore-quencher pair is introduced around the cleavage sequence. The solid phase synthesis is conduced such that two identical sequences are synthesized from one branching point. Eventually, carboxy-terminated polystyrene is introduced into the peptide synthesizer and coupled to the amino-termini of the branched sequence. Upon cleavage, a fragment is released from the triblock copolymer, which has the potential for use in drug delivery applications. Conducting the whole synthesis on a solid phase in the peptide synthesizer avoids solubility issues and post-synthetic purification steps. Due to the hydrophobic PS-chains, the copolymer can easily be formulated to form nanoparticles using a nanoprecipitation process. Incubation of the nanoparticles with the respective enzymes leads to a significant increase of the fluorescence from the incorporated fluorophore, thereby indicating cleavage of the peptide sequence and decomposition of the particles.
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Affiliation(s)
- Adrian V Fuchs
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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183
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Shah M, Agrawal YK, Garala K, Ramkishan A. Solid lipid nanoparticles of a water soluble drug, ciprofloxacin hydrochloride. Indian J Pharm Sci 2013; 74:434-42. [PMID: 23716872 PMCID: PMC3660870 DOI: 10.4103/0250-474x.108419] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2011] [Revised: 10/24/2012] [Accepted: 10/26/2012] [Indexed: 11/25/2022] Open
Abstract
The aim of this study was to understand and investigate the relationship between experimental factors and their responses in the preparation of ciprofloxacin hydrochloride based solid lipid nanoparticles. A quadratic relationship was studied by developing central composite rotatable design. Amount of lipid and drug, stirring speed and stirring time were selected as experimental factors while particle size, zeta potential and drug entrapment were used as responses. Prior to the experimental design, a qualitative prescreening study was performed to check the effect of various solid lipids and their combinations. Results showed that changing the amount of lipid, stirring speed and stirring time had a noticeable influence on the entrapment efficiencies and particle size of the prepared solid lipid nanoparticles. The particle size of a solid lipid nanoparticle was in the range of 159-246 nm and drug encapsulation efficiencies were marginally improved by choosing a binary mixture of physically incompatible solid lipids. Release of ciprofloxacin hydrochloride from solid lipid nanoparticle was considerably slow, and it shows Higuchi matrix model as the best fitted model. Study of solid lipid nanoparticle suggested that the lipid based carrier system could potentially be exploited as a delivery system with improved drug entrapment efficiency and controlled drug release for water soluble actives.
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Affiliation(s)
- M Shah
- Gujarat Forensic Sciences University, Institute of Research and Development, Near Police Bhavan, Sector 18A, Gandhinagar-382 007, India
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184
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Adamczak M, Krok M, Pamuła E, Posadowska U, Szczepanowicz K, Barbasz J, Warszyński P. Linseed oil based nanocapsules as delivery system for hydrophobic quantum dots. Colloids Surf B Biointerfaces 2013; 110:1-7. [PMID: 23693033 DOI: 10.1016/j.colsurfb.2013.04.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 04/08/2013] [Accepted: 04/11/2013] [Indexed: 10/26/2022]
Abstract
In the present work, the CdSe/ZnS hydrophobic quantum dots were embedded within the polyelectrolyte nanocapsules. The core of the capsules, which consists of a mixture of the linseed oil with chloroform, was prepared using the spontaneous emulsification technique. The obtained emulsions were stabilized with lecithin and encapsulated using the layer-by-layer (LbL) adsorption of polyelectrolytes. The pair of biocompatible polyelectrolytes was used: the cationic poly-l-lysine hydrobromide (PLL) together with the anionic poly-d-glutamic acid sodium salt. The saturation LbL method, which is based on the stepwise formation of consecutive layers on the initial emulsion without the intermediate rinsing step, was applied to form the capsule shells. Their growth was evidenced by the capsule size and electrophoretic mobility measurements. The emulsion and the capsules were deposited on a mica surface and the deposit topology was examined by the means of atomic force microscopy (AFM). The presence of quantum dots within the oil cores was confirmed by recording the fluorescent spectra of the samples containing CdSe/ZnS. In order to evaluate cytotoxicity of the capsules, their influence on the viability of mouse embryonic fibroblasts was examined using the MTT test, followed by optical-microscope observation of morphology of the cells after hematoxylin-eosin staining.
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Affiliation(s)
- M Adamczak
- Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, Krakow 30-239, Poland.
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185
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Miao M, Chen Q, Zhang C, Cao X, Zhou W, Qiu Q, An Z. Nanoprecipitation of PMMA Stabilized by Core Cross-Linked Star Polymers. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201300234] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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186
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Ye Z, Squillante E. The development and scale-up of biodegradable polymeric nanoparticles loaded with ibuprofen. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.01.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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187
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Adamczak M, Para G, Simon C, Warszyński P. Natural oil nanoemulsions as cores for layer-by-layer encapsulation. J Microencapsul 2013; 30:479-89. [DOI: 10.3109/02652048.2012.752536] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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188
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Advanced materials and processing for drug delivery: the past and the future. Adv Drug Deliv Rev 2013; 65:104-20. [PMID: 23088863 DOI: 10.1016/j.addr.2012.10.003] [Citation(s) in RCA: 597] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 10/09/2012] [Accepted: 10/16/2012] [Indexed: 11/21/2022]
Abstract
Design and synthesis of efficient drug delivery systems are of vital importance for medicine and healthcare. Materials innovation and nanotechnology have synergistically fueled the advancement of drug delivery. Innovation in material chemistry allows the generation of biodegradable, biocompatible, environment-responsive, and targeted delivery systems. Nanotechnology enables control over size, shape and multi-functionality of particulate drug delivery systems. In this review, we focus on the materials innovation and processing of drug delivery systems and how these advances have shaped the past and may influence the future of drug delivery.
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189
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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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190
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Devadasu VR, Bhardwaj V, Kumar MNVR. Can controversial nanotechnology promise drug delivery? Chem Rev 2012; 113:1686-735. [PMID: 23276295 DOI: 10.1021/cr300047q] [Citation(s) in RCA: 159] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Venkat Ratnam Devadasu
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, United Kingdom
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191
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Liu Z, Lu Y, Zhang M, Wan W, Luo G. Controllable preparation of uniform polystyrene nanospheres with premix membrane emulsification. J Appl Polym Sci 2012. [DOI: 10.1002/app.38662] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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192
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Laredj-Bourezg F, Chevalier Y, Boyron O, Bolzinger MA. Emulsions stabilized with organic solid particles. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2011.12.064] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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193
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194
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195
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Mitri K, Vauthier C, Huang N, Menas A, Ringard-Lefebvre C, Anselmi C, Stambouli M, Rosilio V, Vachon JJ, Bouchemal K. Scale-up of nanoemulsion produced by emulsification and solvent diffusion. J Pharm Sci 2012; 101:4240-7. [PMID: 22886515 DOI: 10.1002/jps.23291] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 06/25/2012] [Accepted: 07/20/2012] [Indexed: 11/06/2022]
Abstract
The scale-up of nanoemulsions (NEs) produced by emulsification and solvent diffusion process was successfully achieved in the present work. Up to 1500 mL of NEs were produced with olive oil, castor oil, almond oil, or Arlamol™ E by using a Y-shaped mixer device. NE droplet sizes were significantly modulated from 290 to 185 nm by changing the process parameters without modification of the formulation composition. Smaller NE droplet sizes were obtained by (1) decreasing the internal diameter of the Y-mixer from 5 to 0.8 mm, (2) increasing the flow rates of the organic and the aqueous phases upon mixing, and (3) increasing the temperature of the experiment from 5°C to 40°C. All the results of NE diameters (d(sc) ) expressed as a function of the Reynolds number (Re) and the shear rate inside the Y-mixer (\documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$\dot \gamma$\end{document}) showed the existence of typical power-law relationships: d(sc) = 10(2.82) Re(- 0.14) and \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$d_{{\rm sc}} = 10^{2.60} \dot \gamma ^{- 0.06}$\end{document}, respectively. The existence of these power-laws for NE formation by emulsification and solvent diffusion process has never been reported in the literature yet and constitutes a new finding in this work. We definitely proved that the high turbulences created upon NE formation are the most important parameter allowing to decrease droplet size.
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Affiliation(s)
- Khalil Mitri
- Université Paris-Sud, Faculté de Pharmacie, UMR CNRS 8612, Institut Galien Paris-Sud, Châtenay-Malabry Cedex 92296, France
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196
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Solè I, Solans C, Maestro A, González C, Gutiérrez J. Study of nano-emulsion formation by dilution of microemulsions. J Colloid Interface Sci 2012; 376:133-9. [DOI: 10.1016/j.jcis.2012.02.063] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Revised: 02/24/2012] [Accepted: 02/25/2012] [Indexed: 11/15/2022]
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197
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Kotta S, Khan AW, Pramod K, Ansari SH, Sharma RK, Ali J. Exploring oral nanoemulsions for bioavailability enhancement of poorly water-soluble drugs. Expert Opin Drug Deliv 2012; 9:585-98. [DOI: 10.1517/17425247.2012.668523] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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198
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Botet R. The "ouzo effect", recent developments and application to therapeutic drug carrying. ACTA ACUST UNITED AC 2012. [DOI: 10.1088/1742-6596/352/1/012047] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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199
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Koroleva MY, Yurtov EV. Nanoemulsions: the properties, methods of preparation and promising applications. RUSSIAN CHEMICAL REVIEWS 2012. [DOI: 10.1070/rc2012v081n01abeh004219] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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200
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Benfer M, Reul R, Betz T, Kissel T. Folic Acid-Decorated Nanocomposites Prepared by a Simple Solvent Displacement Method. Macromol Biosci 2012; 12:438-45. [DOI: 10.1002/mabi.201100344] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 11/29/2011] [Indexed: 11/12/2022]
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