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Radiation-Engineered Functionalized Nanogels as Platform for Biomedical Nanocarriers and Bio-Hybrid, Hierarchically Assembled Nanostructures

Abstract

Radiation technologies can be considered as choice methodologies for the creation of new functional materials at the nanoscale, the challenge being now the integration of these and other novel nanomaterials into new materials and products. The possibility of generating nanoscalar PVP-based hydrogels particles, with reactive functional groups for subsequent bioconjugation, using industrial type accelerators has been demonstrated. These functional nanoparticles are under evaluation as nanocarriers for targeted release of drugs, but can also be considered as useful building blocks for the assembly of nanostructured materials with controlled architecture. In particular, molecular recognition strategies can be developed to tailor the structural and functional properties of the composite by attaching complementary sequences of molecules from biological source (peptides or oligonucleotides) that will tie nanoparticles together. Under the present CRP, biodegradable nanoparticles will be developed using xyloglucan, a relatively inexpensive polysaccharide as base material, in alternative to PVP. Chemical modification of xyloglucan will be attempted with the purpose of generating radiation cleavable crosslinked micro/nanoparticles. These micro/nanoparticles will incorporate stabilizers (antioxidants, such as quercetin) or pro-degrading agents (enzymes) and will be either dispersed into a biodegradable film forming polymer or self-assembled to form a supramolecular networked film or scaffold. For the purpose, suitable surface  More>>
Publication Date:
Jul 01, 2011
Product Type:
Conference
Report Number:
IAEA-RC-1207.1
Resource Relation:
Conference: 1. RCM on Radiation Curing of Composites for Enhancing the Features and Utility in Health Care and Industry, Vienna (Austria), 18-22 Jul 2011; Other Information: 9 refs., 2 figs., 5 tabs.; Related Information: In: Report of the 1st RCM on Radiation Curing of Composites for Enhancing the Features and Utility in Health Care and Industry. Working Material| 179 p.
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 60 APPLIED LIFE SCIENCES; ANTIOXIDANTS; CROSS-LINKING; ENZYMES; EVALUATION; FILMS; HYDROGELS; IRRADIATION; NANOSTRUCTURES; OLIGONUCLEOTIDES; PARTICLES; PEPTIDES; POLYSACCHARIDES; PVP; QUERCETIN
OSTI ID:
22270126
Research Organizations:
International Atomic Energy Agency, Division of Physical and Chemical Sciences, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Contract Number:
Project IAEA CRP 15443; RER 8014; EU COST Action MP0701
Other Identifying Numbers:
TRN: XA14M2995091358
Availability:
Available from INIS in electronic form. Also available on-line: http://www-naweb.iaea.org/napc/iachem/working_materials/RC-1207-1-report.pdf
Submitting Site:
INIS
Size:
page(s) 100-106
Announcement Date:
Oct 23, 2014

Citation Formats

Dispenza, C., Sabatino, M. -A., Alessi, S., and Spadaro, G. Radiation-Engineered Functionalized Nanogels as Platform for Biomedical Nanocarriers and Bio-Hybrid, Hierarchically Assembled Nanostructures. IAEA: N. p., 2011. Web.
Dispenza, C., Sabatino, M. -A., Alessi, S., & Spadaro, G. Radiation-Engineered Functionalized Nanogels as Platform for Biomedical Nanocarriers and Bio-Hybrid, Hierarchically Assembled Nanostructures. IAEA.
Dispenza, C., Sabatino, M. -A., Alessi, S., and Spadaro, G. 2011. "Radiation-Engineered Functionalized Nanogels as Platform for Biomedical Nanocarriers and Bio-Hybrid, Hierarchically Assembled Nanostructures." IAEA.
@misc{etde_22270126,
title = {Radiation-Engineered Functionalized Nanogels as Platform for Biomedical Nanocarriers and Bio-Hybrid, Hierarchically Assembled Nanostructures}
author = {Dispenza, C., Sabatino, M. -A., Alessi, S., and Spadaro, G.}
abstractNote = {Radiation technologies can be considered as choice methodologies for the creation of new functional materials at the nanoscale, the challenge being now the integration of these and other novel nanomaterials into new materials and products. The possibility of generating nanoscalar PVP-based hydrogels particles, with reactive functional groups for subsequent bioconjugation, using industrial type accelerators has been demonstrated. These functional nanoparticles are under evaluation as nanocarriers for targeted release of drugs, but can also be considered as useful building blocks for the assembly of nanostructured materials with controlled architecture. In particular, molecular recognition strategies can be developed to tailor the structural and functional properties of the composite by attaching complementary sequences of molecules from biological source (peptides or oligonucleotides) that will tie nanoparticles together. Under the present CRP, biodegradable nanoparticles will be developed using xyloglucan, a relatively inexpensive polysaccharide as base material, in alternative to PVP. Chemical modification of xyloglucan will be attempted with the purpose of generating radiation cleavable crosslinked micro/nanoparticles. These micro/nanoparticles will incorporate stabilizers (antioxidants, such as quercetin) or pro-degrading agents (enzymes) and will be either dispersed into a biodegradable film forming polymer or self-assembled to form a supramolecular networked film or scaffold. For the purpose, suitable surface modification will be pursued either to promote compatibilisation with the matrix polymer or to efficiently drive the self-assembly process. UV or quantum beam irradiation will be investigated as trigger for the release of the entrapped actives from micro/nanoparticles. (author)}
place = {IAEA}
year = {2011}
month = {Jul}
}