http://www.cnr.it/ontology/cnr/individuo/prodotto/ID181023
Preparation of Polymeric Nanoparticles by Photo-Crosslinking of an Acryloylated Polyaspartamide in w/o Microemulsion (Articolo in rivista)
- Type
- Label
- Preparation of Polymeric Nanoparticles by Photo-Crosslinking of an Acryloylated Polyaspartamide in w/o Microemulsion (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1002/macp.200400128 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Emanuela Fabiola Craparo;Gennara Cavallaro; Maria Luisa Bondì; Gaetano Giammona (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Dipartimento di Chimica e Tecnologie Farmaceutiche, Universita` di Palermo
ISMN Palermo, CNR (literal)
- Titolo
- Preparation of Polymeric Nanoparticles by Photo-Crosslinking of an Acryloylated Polyaspartamide in w/o Microemulsion (literal)
- Abstract
- Biodegradable polymeric nanoparticles have
been prepared by UV irradiation of an acryloylated water
soluble polymer by an inverse microemulsion. The starting
polymer was a a,b-poly(N-2-hydroxyethyl)-D,L-aspartamide
(PHEA) partially functionalized with glycidyl methacrylate
(GMA) in order to introduce reactive vinyl groups in the
side chain. The PHEA-GMA copolymer obtained (PHG) was
crosslinked by UV irradiation of the inverse microemulsion
prepared by mixing an aqueous solution of PHG with propylene
carbonate (PC)/ethyl acetate (EtOAc) in the presence
of sorbitan trioleate (SPAN 85) as surfactant. Nanoparticles
obtained were characterized by FTIR spectrophotometry,
transmission electron microscopy, size distribution analysis
and zeta potential measurements. Nanoparticles investigated
revealed spherical and homogeneous shading, the particle size
having a mean diameter of 88?13 nm (PDI¼0.21) and a
negative surface charge inseveral aqueousmedia.Moreover, in
vitro chemical and enzymatic hydrolysis studies evidenced the
partial biodegradability of PHG nanoparticles, which is more
evident after incubation with enzymes such as esterases. PHG
nanoparticles were loaded during UVirradiation process with
Cytarabine, chosen as a model drug, and Cyt-loaded PHG
nanoparticles were able to release it in a simulated physiological
fluid (phosphate buffer at pH 7.4) and in blood plasma. (literal)
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