1
|
Almond oil O/W nanoemulsions: Potential application for ocular delivery. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
2
|
|
3
|
Xue Y, Sun J, Xiong S, Liu T, Xin X, Xu G. Synthesis, self-assembly and drug solubilization of hyperbranched block polyethers. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.11.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
4
|
Rinaldi F, Hanieh PN, Longhi C, Carradori S, Secci D, Zengin G, Ammendolia MG, Mattia E, Del Favero E, Marianecci C, Carafa M. Neem oil nanoemulsions: characterisation and antioxidant activity. J Enzyme Inhib Med Chem 2017; 32:1265-1273. [PMID: 28965424 PMCID: PMC6009939 DOI: 10.1080/14756366.2017.1378190] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The aim of the present work is to develop nanoemulsions (NEs), nanosized emulsions, manufactured for improving the delivery of active pharmaceutical ingredients. In particular, nanoemulsions composed of Neem seed oil, contain rich bioactive components, and Tween 20 as nonionic surfactant were prepared. A mean droplet size ranging from 10 to 100 nm was obtained by modulating the oil/surfactant ratio. Physicochemical characterisation was carried out evaluating size, ζ-potential, microviscosity, polarity and turbidity of the external shell and morphology, along with stability in simulated cerebrospinal fluid (CSF), activity of Neem oil alone and in NEs, HEp-2 cell interaction and cytotoxicity studies. This study confirms the formation of NEs by Tween 20 and Neem oil at different weight ratios with small and homogenous dimensions. The antioxidant activity of Neem oil alone and in NEs was comparable, whereas its cytotoxicity was strongly reduced when loaded in NEs after interaction with HEp-2 cells.
Collapse
Affiliation(s)
- Federica Rinaldi
- a Fondazione Istituto Italiano di Tecnologia , Center for Life Nano Science@Sapienza , Rome , Italy
| | - Patrizia Nadia Hanieh
- b Dipartimento di Chimica e Tecnologie del Farmaco , " Sapienza" University of Rome , Rome , Italy
| | - Catia Longhi
- c Dipartimento di Sanità pubblica e Malattie infettive , " Sapienza" University of Rome , Rome , Italy
| | - Simone Carradori
- d Dipartimento di Farmacia , "G. d'Annunzio" University of Chieti-Pescara , Chieti , Italy
| | - Daniela Secci
- b Dipartimento di Chimica e Tecnologie del Farmaco , " Sapienza" University of Rome , Rome , Italy
| | - Gokhan Zengin
- e Department of Biology , Selçuk Üniversitesi Alaeddin Keykubat Yerleşkesi , Konya , Turkey
| | - Maria Grazia Ammendolia
- f Centro nazionale per le tecnologie innovative in sanità pubblica , Istituto Superiore di Sanità , Rome , Italy
| | - Elena Mattia
- c Dipartimento di Sanità pubblica e Malattie infettive , " Sapienza" University of Rome , Rome , Italy
| | - Elena Del Favero
- g Dipartimento di Biotecnologie Mediche e Medicina Traslazionale , University of Milan , Segrate , Italy
| | - Carlotta Marianecci
- b Dipartimento di Chimica e Tecnologie del Farmaco , " Sapienza" University of Rome , Rome , Italy
| | - Maria Carafa
- b Dipartimento di Chimica e Tecnologie del Farmaco , " Sapienza" University of Rome , Rome , Italy
| |
Collapse
|
5
|
Lunagariya J, Kumar NS, Asif M, Dhar A, Vekariya RL. Dependency of Anion and Chain Length of Imidazolium Based Ionic Liquid on Micellization of the Block Copolymer F127 in Aqueous Solution: An Experimental Deep Insight. Polymers (Basel) 2017; 9:polym9070285. [PMID: 30970964 PMCID: PMC6431984 DOI: 10.3390/polym9070285] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/08/2017] [Accepted: 07/15/2017] [Indexed: 11/29/2022] Open
Abstract
The non-ionic triblock copolymer, Pluronic® F127, has been selected to observe its interaction with ionic liquids (ILs) in aqueous solutions by using DLS, surface tension, and viscosity measurements. The Critical Micelle Concentration (CMC) of F127 increased with the addition of ILs, which appeared logical since it increases the solubility of PPO (and PEO) moiety, making it behaves more like a hydrophilic block copolymer that is micellized at a higher copolymer concentration. The results from DLS data showed good agreement with those obtained from the surface tension measurements. Upon the addition of ILs, the tendency in micellar size reduction was demonstrated by viscosity results, and therefore, intrinsic viscosity decreased compared to pure F127 in aqueous solution. The results were discussed as a function of alkyl chain length and anions of imidazolium based ILs.
Collapse
Affiliation(s)
- Jignesh Lunagariya
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China.
| | - Nadavala Siva Kumar
- Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia.
| | - Mohammad Asif
- Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia.
| | - Abhishek Dhar
- Department of Science & Technology, Government of West Bengal, 26/B, Block-DD, Sector-I, Salt Lake, Kolkata 700064, India.
| | - Rohit L Vekariya
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
| |
Collapse
|
6
|
Vekariya RL. Effects of cationic head groups of ionic liquid on micellization in aqueous solution of PEO-PPO-PEO triblock copolymer. J DISPER SCI TECHNOL 2017. [DOI: 10.1080/01932691.2016.1263799] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Rohit L. Vekariya
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| |
Collapse
|
7
|
Ćirin D, Krstonošić V, Poša M. Properties of poloxamer 407 and polysorbate mixed micelles: Influence of polysorbate hydrophobic chain. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.11.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Niosomal approach to brain delivery: Development, characterization and in vitro toxicological studies. Int J Pharm 2016; 511:969-82. [PMID: 27498282 DOI: 10.1016/j.ijpharm.2016.08.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 07/30/2016] [Accepted: 08/02/2016] [Indexed: 01/15/2023]
Abstract
The majority of active agents do not readily permeate into brain due to the presence of the blood-brain barrier and blood-cerebrospinal fluid barrier. Currently, the most innovative and promising non-invasive strategy in brain delivery is the design and preparation of nanocarriers, which can move through the brain endothelium. Niosomes can perform brain delivery, in fact polysorbates, can act as an anchor for apolipoprotein E from blood plasma. The particles mimic LDL and interact with the LDL receptor leading to the endothelial cells uptake. The efficacy of niosomes for anticancer therapeutic applications was correlated to their physicochemical and drug delivery properties. Dimensions and ζ-potential were characterized using dynamic light scattering and asymmetric flow-field fractionation system. Lipid bilayer was characterized measuring the fluidity, polarity and microviscosity by fluorescent probe spectra evaluation. Morphology and homogeneity were characterized using atomic force microscopy. Physicochemical stability and serum stability (45% v/v fetal bovine and human serum) were evaluated as a function of time using dynamic light scattering. U87-MG human glioblastoma cells were used to evaluate vesicle cytotoxicity and internalisation efficiency. From the obtained data, the systems appear useful to perform a prolonged (modified) release of biological active substances to the central nervous system.
Collapse
|
9
|
|
10
|
Murgia S, Falchi AM, Meli V, Schillén K, Lippolis V, Monduzzi M, Rosa A, Schmidt J, Talmon Y, Bizzarri R, Caltagirone C. Cubosome formulations stabilized by a dansyl-conjugated block copolymer for possible nanomedicine applications. Colloids Surf B Biointerfaces 2015; 129:87-94. [PMID: 25829131 DOI: 10.1016/j.colsurfb.2015.03.025] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 01/23/2015] [Accepted: 03/09/2015] [Indexed: 12/31/2022]
Abstract
We present here an innovative, fluorescent, monoolein-based cubosome dispersion. Rather than embedded within the monoolein palisade, the fluorescent imaging agent, namely dansyl, was conjugated to the terminal ethylene oxide moieties of the block copolymer Pluronic F108. We discuss the physicochemical and photophysical properties of this fluorescent Pluronic and of a cubosome formulation stabilized by a mixture of dansyl-conjugated and non-conjugated Pluronic, also including an anticancer drug (quercetin). Furthermore, we performed biocompatibility tests against HeLa cells to assess internalization and cytotoxicity features of this nanoparticles aqueous dispersion. Cryo-TEM, SAXS, and DLS analysis, proved the bicontinuous cubic inner nanostructure and the morphology of this fluorescent cubosome dispersion, while photophysical measurements and biocompatibility results basically validate their potential use for theranostic nanomedicine applications.
Collapse
Affiliation(s)
- Sergio Murgia
- Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, S.S. 554 Bivio Sestu, I-09042 Monserrato (CA), Italy.
| | - Angela Maria Falchi
- Dipartimento di Scienze Biomediche, Università di Cagliari, S.S. 554 Bivio Sestu, I-09042 Monserrato (CA) , Italy.
| | - Valeria Meli
- Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, S.S. 554 Bivio Sestu, I-09042 Monserrato (CA), Italy.
| | - Karin Schillén
- Division of Physical Chemistry, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden.
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, S.S. 554 Bivio Sestu, I-09042 Monserrato (CA), Italy.
| | - Maura Monduzzi
- Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, S.S. 554 Bivio Sestu, I-09042 Monserrato (CA), Italy.
| | - Antonella Rosa
- Dipartimento di Scienze Biomediche, Università di Cagliari, S.S. 554 Bivio Sestu, I-09042 Monserrato (CA) , Italy.
| | - Judith Schmidt
- Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
| | - Yeshayahu Talmon
- Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel.
| | - Ranieri Bizzarri
- Istituto di Biofisica, CNR, U.O. Pisa, Via G Moruzzi 1, 56124 Pisa, Italy.
| | - Claudia Caltagirone
- Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, S.S. 554 Bivio Sestu, I-09042 Monserrato (CA), Italy.
| |
Collapse
|
11
|
Passeri D, Dong C, Reggente M, Angeloni L, Barteri M, Scaramuzzo FA, De Angelis F, Marinelli F, Antonelli F, Rinaldi F, Marianecci C, Carafa M, Sorbo A, Sordi D, Arends IW, Rossi M. Magnetic force microscopy: quantitative issues in biomaterials. BIOMATTER 2014; 4:29507. [PMID: 25050758 PMCID: PMC4145005 DOI: 10.4161/biom.29507] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Magnetic force microscopy (MFM) is an atomic force microscopy (AFM) based technique in which an AFM tip with a magnetic coating is used to probe local magnetic fields with the typical AFM spatial resolution, thus allowing one to acquire images reflecting the local magnetic properties of the samples at the nanoscale. Being a well established tool for the characterization of magnetic recording media, superconductors and magnetic nanomaterials, MFM is finding constantly increasing application in the study of magnetic properties of materials and systems of biological and biomedical interest. After reviewing these latter applications, three case studies are presented in which MFM is used to characterize: (i) magnetoferritin synthesized using apoferritin as molecular reactor; (ii) magnetic nanoparticles loaded niosomes to be used as nanocarriers for drug delivery; (iii) leukemic cells labeled using folic acid-coated core-shell superparamagnetic nanoparticles in order to exploit the presence of folate receptors on the cell membrane surface. In these examples, MFM data are quantitatively analyzed evidencing the limits of the simple analytical models currently used. Provided that suitable models are used to simulate the MFM response, MFM can be used to evaluate the magnetic momentum of the core of magnetoferritin, the iron entrapment efficiency in single vesicles, or the uptake of magnetic nanoparticles into cells.
Collapse
Affiliation(s)
- Daniele Passeri
- Department of Basic and Applied Sciences for Engineering; University of Rome Sapienza; Rome, Italy
| | - Chunhua Dong
- Department of Basic and Applied Sciences for Engineering; University of Rome Sapienza; Rome, Italy; Department of Physics; University of Rome Sapienza; Rome, Italy
| | - Melania Reggente
- Department of Basic and Applied Sciences for Engineering; University of Rome Sapienza; Rome, Italy
| | - Livia Angeloni
- Department of Basic and Applied Sciences for Engineering; University of Rome Sapienza; Rome, Italy; Lab. for Biomaterials and Bioengineering (CRC-I); Department Min-Met-Materials Eng. & University Hospital Research Center; Laval University; Quebec City, Canada
| | - Mario Barteri
- Department of Chemistry; University of Rome Sapienza; Rome, Italy
| | - Francesca A Scaramuzzo
- Department of Basic and Applied Sciences for Engineering; University of Rome Sapienza; Rome, Italy
| | - Francesca De Angelis
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics; University of Rome Sapienza; Rome, Italy; Center for Life Nano Science@Sapienza; Istituto Italiano di Tecnologia; Rome, Italy
| | | | - Flavia Antonelli
- Department of Chemistry; University of Rome Sapienza; Rome, Italy
| | - Federica Rinaldi
- Department of Drug Chemistry and Technologies; University of Rome Sapienza; Rome, Italy
| | - Carlotta Marianecci
- Department of Drug Chemistry and Technologies; University of Rome Sapienza; Rome, Italy
| | - Maria Carafa
- Department of Drug Chemistry and Technologies; University of Rome Sapienza; Rome, Italy
| | - Angela Sorbo
- Department of Food Safety and Veterinary Public Health; Istituto Superiore di Sanità; Rome, Italy
| | - Daniela Sordi
- Delft University of Technology; Biotechnology Department; Biocatalysis and Organic Chemistry Section; Delft, The Netherlands
| | - Isabel Wce Arends
- Delft University of Technology; Biotechnology Department; Biocatalysis and Organic Chemistry Section; Delft, The Netherlands
| | - Marco Rossi
- Department of Basic and Applied Sciences for Engineering; University of Rome Sapienza; Rome, Italy; Centro di Ricerca per le Nanotecnologie Applicate all'Ingegneria della Sapienza (CNIS); University of Rome Sapienza; Rome, Italy
| |
Collapse
|
12
|
Estimating viscosity and polarity in the microenvironment of polymeric gels—introducing a microviscosity parameter. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0185-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
13
|
Parekh P, Singh K, Marangoni D, Bahadur P. Effect of alcohols on aqueous micellar solutions of PEO–PPO–PEO copolymers: A dynamic light scattering and 1H NMR study. J Mol Liq 2012. [DOI: 10.1016/j.molliq.2011.10.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
14
|
Vasilescu M, Angelescu DG, Bandula R, Staikos G. Microstructure of polyelectrolyte nanoaggregates studied by fluorescence probe method. J Fluoresc 2011; 21:2085-91. [PMID: 21688051 DOI: 10.1007/s10895-011-0907-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Accepted: 05/27/2011] [Indexed: 10/18/2022]
Abstract
The microstructure of water soluble nanoaggregates based on polyelectrolyte complex formed by the cationic comb-type copolymer poly(acrylamide -co-[3- (methacryloyl-amino)propyl] trimethylammonium chloride)-graft- polyacrylamide [P(AM-co-MAPTAC)-g-PAM] and the anionic linear polyelectrolyte sodium polyacrylate (NaPA) was investigated using the fluorescence probe technique. The fluorescence probe were 1-anilinonaphthalene-8-sulfonic acid (ANS), pyrene (Py) and 1,10-bis(1-pyrene) decane (PD). The fluorescence properties in polyelectrolyte complex solutions, which are sensitive to either micropolarity (ANS, Py) or microviscosity (PD), were related to the quantities obtained in different pure or mixed solvents. Micropolarities were quantified utilizing the polarity common index (Reichardt) E(T)(30). ANS and Py showed a variation of the micropolarity with the charge ratio of the two polymers, with the lowest polarity reached at the complex neutralization. The PD probe, by its excimer-to-monomer fluorescence intensities ratio, enabled us to evidence the effect of the composition and the comb-type copolymer grafting density on the microviscosity of the interpolyelectrolytes aggregates. It has been found that the microviscosity increased with the density of the grafting PAM chains.
Collapse
Affiliation(s)
- Marilena Vasilescu
- Institute of Physical Chemistry, I.G. Murgulescu Romanian Academy, Bucharest, Romania.
| | | | | | | |
Collapse
|
15
|
Characterization of the water-soluble comb–linear interpolyelectrolyte nanoaggregates by Monte Carlo simulations and fluorescence probe techniques. Colloid Polym Sci 2011. [DOI: 10.1007/s00396-011-2406-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|