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Physicochemical characterization of solid lipid nanoparticles comprised of glycerol monostearate and bile salts
Published in Elsevier B.V.
2018
PMID: 30212689
Volume: 172
   
Pages: 517 - 525
Abstract
Successful applications of solid lipid nanoparticles (SLNs) rely on their physicochemical properties which are mainly governed by their comprising materials (e.g., lipids, emulsifiers) and preparation methods. We have prepared biocompatible solid lipid nanoparticles with glycerol monostearate as lipid and varying combinations of bile salts sodium deoxycholate and sodium cholate (bile salts to lipid ratio 8% w/w) as emulsifiers. The detailed characterization of solid lipid nanoparticles was performed using a combination of light scattering, microscopic, calorimetric, and spectroscopic techniques. It was seen that different compositions of bile salts yield nanoparticles with different sizes. The use of only sodium deoxycholate (8% w/w) produces nanoparticles with average sizes ∼487 nm. The average particle size increases with increasing cholate fraction. A higher average particle size around ∼652 nm is obtained with 8% (w/w) sodium cholate. All the SLNs show good physical stability at room temperature and do not show polymorphic transformation during the storage. In order to study the microenvironments, solid lipid nanoparticles are loaded with an external fluorescent-probe fisetin (probe to lipid ratio 1% w/w). Photophysical properties of fisetin loaded SLNs indicate the micro-heterogenicity inside the nanoparticles. © 2018 Elsevier B.V.
About the journal
JournalData powered by TypesetColloids and Surfaces B: Biointerfaces
PublisherData powered by TypesetElsevier B.V.
ISSN09277765
Open AccessNo
Concepts (66)
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    Biocompatibility
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    Body fluids
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    Glycerol
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    Light scattering
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    Nanoparticles
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    Particle size
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    Polymorphism
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    Probes
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    Sodium
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    Stearic acid
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    BILE SALTS
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    FISETIN
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    Microenvironments
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    Photophysical properties
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    Physico-chemical characterization
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    POLYMORPHIC TRANSFORMATION
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    Solid lipid nanoparticle (sln)
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    Solid lipid nanoparticles
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    Salts
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    BILE SALT
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    Cholic acid
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    DEOXYCHOLATE SODIUM
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    Emulsifying agent
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    FISETIN
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    Fluorescent dye
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    GLYCEROL STEARATE
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    Solid lipid nanoparticle
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    Bile acid
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    Flavonoid
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    Lipid
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    Nanoparticle
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    Article
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    Atomic force microscopy
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    Chemical analysis
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    Chemical composition
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    Controlled study
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    Crystallization
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    Differential scanning calorimetry
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    Dry powder
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    Emulsion
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    Enthalpy
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    Fluorescence analysis
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    Fourier transform infrared spectroscopy
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    Melting temperature
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    Microenvironment
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    Nanoanalysis
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    Physical chemistry
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    Priority journal
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    Suspended particulate matter
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    Thermostability
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    Transition temperature
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    X ray powder diffraction
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    Chemical phenomena
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    Chemistry
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    Humidity
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    Spectrofluorometry
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    Temperature
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    Thermogravimetry
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    Ultrastructure
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    X ray diffraction
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    Bile acids and salts
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    Calorimetry, differential scanning
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    FLAVONOIDS
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    Lipids
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    Spectrometry, fluorescence
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    X-ray diffraction