Volume 131, Issue 2
Article

Oligonucleotides-decorated-poly(N-vinyl pyrrolidone) nanogels for gene delivery

Clelia Dispenza

Corresponding Author

Clelia Dispenza

Dipartimento di Ingegneria Chimica, Gestionale, Informatica, Meccanica, Università degli Studi di Palermo, Viale delle Scienze, Edificio 6, 90128 Palermo, Italy

CNR - Istituto di Biofisica (IBF) UOS Palermo, Via U. La Malfa, 153, 90146 Palermo, Italy

Correspondence to: C. Dispenza (E-mail: [email protected])Search for more papers by this author
Giorgia Adamo

Giorgia Adamo

Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, Edificio 16, 90128 Palermo, Italy

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Maria Antonietta Sabatino

Maria Antonietta Sabatino

Dipartimento di Ingegneria Chimica, Gestionale, Informatica, Meccanica, Università degli Studi di Palermo, Viale delle Scienze, Edificio 6, 90128 Palermo, Italy

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Natascia Grimaldi

Natascia Grimaldi

Dipartimento di Ingegneria Chimica, Gestionale, Informatica, Meccanica, Università degli Studi di Palermo, Viale delle Scienze, Edificio 6, 90128 Palermo, Italy

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Donatella Bulone

Donatella Bulone

CNR - Istituto di Biofisica (IBF) UOS Palermo, Via U. La Malfa, 153, 90146 Palermo, Italy

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Maria Luisa Bondì

Maria Luisa Bondì

CNR - Istituto per lo Studio dei Materiali Nanostrutturati (ISMN) UOS Palermo, via Ugo La Malfa, 153, 90146 Palermo, Italy

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Salvatrice Rigogliuso

Salvatrice Rigogliuso

Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, Edificio 16, 90128 Palermo, Italy

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Giulio Ghersi

Giulio Ghersi

Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, Edificio 16, 90128 Palermo, Italy

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First published: 02 August 2013
Citations: 29

ABSTRACT

Pulsed electron-beam irradiation of a semi-dilute poly(N-vinyl pyrrolidone) (PVP) aqueous solution in the presence of acrylic acid has led to a carboxyl functionalized nanogel system. Nanoparticles hydrodynamic size and surface charge density, in water and as a function of pH, were investigated by dynamic light scattering and laser doppler velocimetry, respectively. Nanogels (NGs) were proved not to be cytotoxic at the cellular level. Indeed, they rapidly bypass the cellular membrane to accumulate in specific cell portions of the cytoplasm, in the perinuclear area. The availability of pendant carboxyl groups on the crosslinked PVP NGs core prompted us to attempt their decoration with a single strand oligonucleotide, which holds a terminal amino group. The recognition ability of the attached single helix of its complementary strand was investigated. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 39774.

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