1
|
Yordanov G, Skrobanska R, Petkova M. Poly(butyl cyanoacrylate) nanoparticles stabilised with poloxamer 188: particle size control and cytotoxic effects in cervical carcinoma (HeLa) cells. CHEMICAL PAPERS 2016. [DOI: 10.1515/chempap-2015-0220] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractIn this study, the preparation of poloxamer 188-coated poly(butyl cyanoacrylate) colloidal nanospheres of controlled size distribution and their physicochemical characterisation were investigated and their cytotoxic effects in cervical carcinoma (HeLa) cells evaluated. The nanoparticles were prepared by controlled emulsion polymerisation of butyl cyanoacrylate in an aqueous medium containing poloxamer 188 as an amphiphilic non-ionic colloidal stabiliser. The colloids thus obtained were characterised by scanning electron microscopy, dynamic and electrophoretic light-scattering, Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectroscopy. The average size of the particles could be finely controlled within an interval between 220 nm and 290 nm by varying the concentration of the precursor and citric acid in the polymerisation medium. The particle zeta-potentials in phosphate-buffered saline were approximately -4.5 mV. FTIR and NMR data confirmed the expected composition of nanoparticles and the complete precursor polymerisation. In-vitro studies with cervical carcinoma (HeLa) cells demonstrated the dose-dependent cytotoxicity of nanoparticles (IC50 ≈ 30 μg mL
Collapse
|
2
|
Kreuter J. Drug delivery to the central nervous system by polymeric nanoparticles: what do we know? Adv Drug Deliv Rev 2014; 71:2-14. [PMID: 23981489 DOI: 10.1016/j.addr.2013.08.008] [Citation(s) in RCA: 332] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 08/14/2013] [Accepted: 08/15/2013] [Indexed: 02/06/2023]
Abstract
Nanoparticles enable the delivery of a great variety of drugs including anticancer drugs, analgesics, anti-Alzheimer's drugs, cardiovascular drugs, protease inhibitors, and several macromolecules into the brain after intravenous injection of animals. The mechanism of the nanoparticle-mediated drug transport across the BBB appears to be receptor-mediated endocytosis followed by transcytosis into the brain or by drug release within the endothelial cells. Modification of the nanoparticle surface with covalently attached targeting ligands or by coating with certain surfactants that lead to the adsorption of specific plasma proteins after injection is necessary for this receptor-mediated uptake. A very critical and important requirement for nanoparticulate brain delivery is that the employed nanoparticles are biocompatible and, moreover, rapidly biodegradable, i.e. over a time frame of a few days. In addition to enabling drug delivery to the brain, nanoparticles, as with doxorubicin, may importantly reduce the drug's toxicity and adverse effects due to an alteration of the body distribution. Because of the possibility to treat severe CNS diseases such as brain tumours and to even transport proteins and other macromolecules across the blood-brain barrier, this technology holds great promise for a non-invasive therapy of these diseases.
Collapse
Affiliation(s)
- Jörg Kreuter
- Institut für Pharmazeutische Technologie, Goethe-Universtät, Max-von-Laue-Str. 9, D-60438 Frankfurt, Germany.
| |
Collapse
|
3
|
Yordanov GG, Dushkin CD. Preparation of poly(butylcyanoacrylate) drug carriers by nanoprecipitation using a pre-synthesized polymer and different colloidal stabilizers. Colloid Polym Sci 2010. [DOI: 10.1007/s00396-010-2226-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
4
|
Nicolas J, Couvreur P. Synthesis of poly(alkyl cyanoacrylate)‐based colloidal nanomedicines. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2008; 1:111-127. [DOI: 10.1002/wnan.15] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Julien Nicolas
- Laboratoire de Physico‐Chimie, Pharmacotechnie et Biopharmacie, UMR CNRS 8612, Univ Paris‐Sud, 92296 Châtenay Malabry, France
| | - Patrick Couvreur
- Laboratoire de Physico‐Chimie, Pharmacotechnie et Biopharmacie, UMR CNRS 8612, Univ Paris‐Sud, 92296 Châtenay Malabry, France
| |
Collapse
|
5
|
Fresta M, Puglisi G. Association of netilmicin Sulphate to poly(Alkylcyanoacrylate) Nanoparticles: Factors Influencing particle delivery Behaviour. Drug Dev Ind Pharm 2008. [DOI: 10.3109/03639049409050235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
6
|
Radwan MA. In Vitro Evaluation of Polyisobutylcyanoacrylate Nanoparticles as a Controlled Drug Carrier for Theophylline. Drug Dev Ind Pharm 2008. [DOI: 10.3109/03639049509070875] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
7
|
Ganachaud F, Katz JL. Nanoparticles and nanocapsules created using the Ouzo effect: spontaneous emulisification as an alternative to ultrasonic and high-shear devices. Chemphyschem 2006; 6:209-16. [PMID: 15751338 DOI: 10.1002/cphc.200400527] [Citation(s) in RCA: 303] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The preparation of polymeric particles and capsules by means of spontaneous droplet formation and subsequent polymer precipitation or synthesis is well-known. However, spontaneous emulsification is a phenomenon that has often been erroneously interpreted. This Minireview provides new insights into the preparation of metastable liquid dispersions by homogeneous liquid-liquid nucleation, and is based primarily on a recent study by Vitale and Katz (Langmuir, 2003, 19, 4105-4110). This spontaneous emulsification, which they named the Ouzo effect, occurs upon pouring, into water, a mixture of a totally water-miscible solvent and a hydrophobic oil--and optionally some water--thus generating long-lived small droplets, which are formed even though no surfactant is present. Herein, we review and reinterpret the most relevant publications on the synthesis of a variety of dispersions (pseudolatexes, silicone emulsions, biodegradable polymeric nanocapsules, etc.), which we believe have actually been synthesized using the Ouzo effect. The Ouzo effect may also become a substitute for high-shear techniques, which, to date have only been of limited utility on industrial scales.
Collapse
Affiliation(s)
- François Ganachaud
- Laboratoire de Chiniie Macromolécu1aire UMP 5076 CNRS/ENSCM 8 rue de l'Ecole normale 34296 Montpellier, France.
| | | |
Collapse
|
8
|
|
9
|
Limouzin C, Caviggia A, Ganachaud F, Hémery P. Anionic Polymerization of n-Butyl Cyanoacrylate in Emulsion and Miniemulsion. Macromolecules 2003. [DOI: 10.1021/ma0257402] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cédric Limouzin
- Laboratoire de Chimie des Polymères, UMR 7610, CNRS−Université Pierre et Marie Curie, T 44 E1, 4 Place Jussieu 75252 PARIS Cedex 05
| | - Audrey Caviggia
- Laboratoire de Chimie des Polymères, UMR 7610, CNRS−Université Pierre et Marie Curie, T 44 E1, 4 Place Jussieu 75252 PARIS Cedex 05
| | - François Ganachaud
- Laboratoire de Chimie des Polymères, UMR 7610, CNRS−Université Pierre et Marie Curie, T 44 E1, 4 Place Jussieu 75252 PARIS Cedex 05
| | - Patrick Hémery
- Laboratoire de Chimie des Polymères, UMR 7610, CNRS−Université Pierre et Marie Curie, T 44 E1, 4 Place Jussieu 75252 PARIS Cedex 05
| |
Collapse
|
10
|
Abstract
In this study, the stability of poly(butyl cyanoacrylate) (PBCA) nanoparticle suspensions was examined for up to 1 year by measuring the nanoparticle sizes. The nanoparticles were prepared with different stabilizers (dextran 70.000, poloxamer 188, or polysorbate 85), and the particle size was determined before and after purification by centrifugation and after dilution with different solutions (0.1 N HCl, 0.01 N HCl, H2O, and PBS). The most constant sizes were with the untreated acidic nanoparticle suspensions. In all other cases, agglomeration of the particles occurred: the extent of this agglomeration and the time at which the agglomeration occurred depended on the experimental conditions. Nanoparticle polymer degradation, as indicated by size decrease, was not observed. Thus, PBCA nanoparticles can be stored as suspensions, making the lyophilization and the sometimes problematic resuspension by ultrasonication, unnecessary, which is advantageous for clinical applications.
Collapse
Affiliation(s)
- P Sommerfeld
- Institute of Medical Psychology, Otto-von-Guericke University, Medical Faculty, Magdeburg, Germany
| | | | | |
Collapse
|
11
|
Yang SC, Ge HX, Hu Y, Jiang XQ, Yang CZ. Doxorubicin-loaded poly(butylcyanoacrylate) nanoparticles produced by emulsifier-free emulsion polymerization. J Appl Polym Sci 2000. [DOI: 10.1002/1097-4628(20001017)78:3<517::aid-app60>3.0.co;2-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
12
|
Page-Clisson ME, Pinto-Alphandary H, Ourevitch M, Andremont A, Couvreur P. Development of ciprofloxacin-loaded nanoparticles: physicochemical study of the drug carrier. J Control Release 1998; 56:23-32. [PMID: 9801426 DOI: 10.1016/s0168-3659(98)00065-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
This paper describes the optimization of the preparation of ciprofloxacin-loaded polyethylbutylcyanoacrylate (PEBCA) nanoparticles. The association of ciprofloxacin with nanoparticles was performed by emulsion polymerization, but successful entrapment was only obtained in the presence of acetone in the polymerization medium. This preparation process led to a stable ciprofloxacin nanoparticle suspension, with a mean size value twice as high as that obtained in the absence of drug, and an association efficiency of 82%. Moreover, the molecular weight value of ciprofloxacin nanoparticles was shown to be reduced as compared with unloaded nanoparticles. Drug release from the colloidal carrier in medium containing esterase was found to be very slow (a maximum of 51.5% after 48 h), suggesting that this release resulted from bioerosion of the polymer matrix. Interestingly, it was observed that 30.5% of the initial amount of ciprofloxacin was not detectable by HPLC analysis after nanoparticle preparation and corresponded either to ciprofloxacin covalently bound to PEBCA or to ciprofloxacin chemically degraded during the polymerization process. 19F-NMR analysis demonstrated that ciprofloxacin entrapped into nanoparticles was only in its neutral form. The measurements of molecular weight suggest the participation of the antibiotic as an anionic polymerization initiator, leading to the formation of a chemical bond between some of the drug and the polymer. These data allowed us to propose a model describing the association of ciprofloxacin with PEBCA nanoparticles obtained by emulsion polymerization.
Collapse
Affiliation(s)
- M E Page-Clisson
- Laboratoire de Pharmacie Galénique et Biopharmacie, URA CNRS 1218, Université Paris XI, 92296, Châtenay-Malabry Cedex, France
| | | | | | | | | |
Collapse
|
13
|
Roy D, Guillon X, Lescure F, Couvreur P, Bru N, Breton P. On shelf stability of freeze-dried poly(methylidene malonate 2.1.2) nanoparticles. Int J Pharm 1997. [DOI: 10.1016/s0378-5173(96)04842-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
14
|
Fresta M, Puglisi G, Giammona G, Cavallaro G, Micali N, Furneri PM. Pefloxacine mesilate- and ofloxacin-loaded polyethylcyanoacrylate nanoparticles: characterization of the colloidal drug carrier formulation. J Pharm Sci 1995; 84:895-902. [PMID: 7562444 DOI: 10.1002/jps.2600840721] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The entrapment of fluoroquinolones, perfloxacine mesilate (PFX) and ofloxacin (OFX), in polyalkylcyanoacrylate (PECA) nanoparticles could offer some advantages for their biological application; for examples, increasing their bioavailability, controlling the drug time-release in blood, and reducing the formation of bacterial resistance. To load these two drugs in PECA polymeric bulk, the incorporation or adsorption method was performed. These two methods were capable of influencing nanoparticle size, molecular weight, release profile, and drug-polymer association. The incorporation method, particularly for the OFX system, achieved PECA nanoparticle suspensions with a mean size value three times higher than that obtained in the absence of the drug. In contrast, negligible changes were observed for PFX systems. This preparation process also influenced the nanoparticle storage stability. The molecular weight values of the various nanoparticle preparations were also influenced; that is, the PFX-loaded systems showed an enhancement in the average molecular weight values, whereas a reduction was observed for OFX-loaded systems. The adsorption method showed no particular difference in particle size, molecular weight, and storage stability compared with nanoparticles prepared without the drugs. The nanoparticle loading capacity was higher for the colloidal systems obtained following the incorporation preparation procedure. The release of drug from the nanoparticles was biphasic for both preparation processes. The fluoro-quinolone-loaded nanoparticles showed an enhancement of the antimicrobial activity against standard bacteria strains from 2- to 50-fold compared with the free drugs.
Collapse
Affiliation(s)
- M Fresta
- Istituto di Chimica Farmaceutica e Tossicologica, Università di Catania, Italy
| | | | | | | | | | | |
Collapse
|
15
|
Lescure F, Zimmer C, Roy D, Couvreur P. Optimization of polyalkylcyanoacrylate nanoparticle preparation: Influence of sulfur dioxide and pH on nanoparticle characteristics. J Colloid Interface Sci 1992. [DOI: 10.1016/0021-9797(92)90079-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
16
|
Approaches to improve the association of amikacin sulphate to poly(alkylcyanoacrylate) nanoparticles. Int J Pharm 1991. [DOI: 10.1016/0378-5173(91)90128-b] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|