Smart Magnetically Responsive Hydrogel Nanoparticles Prepared by a Novel Aerosol-Assisted Method for Biomedical and Drug Delivery Applications
Joint Authors
El-Sherbiny, Ibrahim M.
Smyth, Hugh D. C.
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-02-21
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Engineering Sciences and Information Technology
Chemistry
Civil Engineering
Abstract EN
We have developed a novel spray gelation-based method to synthesize a new series of magnetically responsive hydrogel nanoparticles for biomedical and drug delivery applications.
The method is based on the production of hydrogel nanoparticles from sprayed polymeric microdroplets obtained by an air-jet nebulization process that is immediately followed by gelation in a crosslinking fluid.
Oligoguluronate (G-blocks) was prepared through the partial acid hydrolysis of sodium alginate.
PEG-grafted chitosan was also synthesized and characterized (FTIR, EA, and DSC).
Then, magnetically responsive hydrogel nanoparticles based on alginate and alginate/G-blocks were synthesized via aerosolization followed by either ionotropic gelation or both ionotropic and polyelectrolyte complexation using CaCl2 or PEG-g-chitosan/CaCl2 as crosslinking agents, respectively.
Particle size and dynamic swelling were determined using dynamic light scattering (DLS) and microscopy.
Surface morphology of the nanoparticles was examined using SEM.
The distribution of magnetic cores within the hydrogels nanoparticles was also examined using TEM.
In addition, the iron and calcium contents of the particles were estimated using EDS.
Spherical magnetic hydrogel nanoparticles with average particle size of 811 ± 162 to 941 ± 2 nm were obtained.
This study showed that the developed method is promising for the manufacture of hydrogel nanoparticles, and it represents a relatively simple and potential low-cost system.
American Psychological Association (APA)
El-Sherbiny, Ibrahim M.& Smyth, Hugh D. C.. 2011. Smart Magnetically Responsive Hydrogel Nanoparticles Prepared by a Novel Aerosol-Assisted Method for Biomedical and Drug Delivery Applications. Journal of Nanomaterials،Vol. 2011, no. 2011, pp.1-13.
https://search.emarefa.net/detail/BIM-507412
Modern Language Association (MLA)
El-Sherbiny, Ibrahim M.& Smyth, Hugh D. C.. Smart Magnetically Responsive Hydrogel Nanoparticles Prepared by a Novel Aerosol-Assisted Method for Biomedical and Drug Delivery Applications. Journal of Nanomaterials No. 2011 (2011), pp.1-13.
https://search.emarefa.net/detail/BIM-507412
American Medical Association (AMA)
El-Sherbiny, Ibrahim M.& Smyth, Hugh D. C.. Smart Magnetically Responsive Hydrogel Nanoparticles Prepared by a Novel Aerosol-Assisted Method for Biomedical and Drug Delivery Applications. Journal of Nanomaterials. 2011. Vol. 2011, no. 2011, pp.1-13.
https://search.emarefa.net/detail/BIM-507412
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-507412