Marcela Analia Moretton

Prof. Dr. Marcela Analia Moretton

1. Laboratorio de Nanomedicinas, Instituto de Tecnología Farmacéutica y Biofarmacia (InTecFyB), Universidad de Buenos Aires, Buenos Aires 1113, Argentina
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orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 April 2017 in European Journal of Pharmaceutics and Biopharmaceutics
Verified
Journal Article
Closed access
MCMaximiliano Cagel
Maximiliano Cagel
FTFiorella C. Tesan
Fiorella C. Tesan
EBEzequiel Bernabeu
Ezequiel Bernabeu
MSMaria J. Salgueiro
Maria J. Salgueiro
MZMarcela B. Zubillaga
Marcela B. Zubillaga
DCDiego A. Chiappetta
Diego A. Chiappetta

1 June 2017 in International Journal of Pharmaceutics
Verified
Journal Article
Closed access
EBEzequiel Bernabeu
Ezequiel Bernabeu
MCMaximiliano Cagel
Maximiliano Cagel
ELEduardo Lagomarsino
Eduardo Lagomarsino
Marcela Analia MorettonMarcela Analia Moretton
Marcela Analia Moretton
DCDiego A. Chiappetta
Diego A. Chiappetta

1 March 2010 in Advanced Drug Delivery Reviews
Verified
Journal Article
Closed access
ASALEJANDRO SOSNIK
ALEJANDRO SOSNIK
ACAngel Carcaboso
Angel Carcaboso
ROMINA Julieta GLISONIROMINA Julieta GLISONI
ROMINA Julieta GLISONI
Marcela Analia MorettonMarcela Analia Moretton
Marcela Analia Moretton
DCDiego A. Chiappetta
Diego A. Chiappetta

1 April 2016 in Colloids and Surfaces B: Biointerfaces
Verified
Journal Article
Closed access
EBEzequiel Bernabeu
Ezequiel Bernabeu
LGLorena Gonzalez
Lorena Gonzalez
MCMaximiliano Cagel
Maximiliano Cagel
EGEsteban P. Gergic
Esteban P. Gergic
Marcela Analia MorettonMarcela Analia Moretton
Marcela Analia Moretton
DCDiego A. Chiappetta
Diego A. Chiappetta

1 September 2010 in Colloids and Surfaces B: Biointerfaces
Verified
Journal Article
Closed access
Marcela Analia MorettonMarcela Analia Moretton
Marcela Analia Moretton
ROMINA Julieta GLISONIROMINA Julieta GLISONI
ROMINA Julieta GLISONI
DCDiego A. Chiappetta
Diego A. Chiappetta
ASAlejandro Sosnik
Alejandro Sosnik

1 June 2013 in Journal of Biomedical Nanotechnology
Verified
Journal Article
Closed access
Marcela Analia MorettonMarcela Analia Moretton
Marcela Analia Moretton
DCDiego A. Chiappetta
Diego A. Chiappetta
FAFernanda da Silva Andrade
Fernanda da Silva Andrade
José das NevesJosé das Neves
José das Neves
DFDomingos Ferreira
Domingos Ferreira
ASAlejandro Sosnik
Alejandro Sosnik
Inhalable nanocarriers that are uptaken by macrophages represent an appealing approach for the targeting of antibiotics to the tuberculosis reservoir. In the present work, we report on the development of rifampicin (RIF)-loaded nanoparticles and flower-like polymeric micelles surface-modified with hydrolyzed galatomannan (GalM-h), a polysaccharide of mannose and galactose, two sugars that are recognized by lectin-like receptors. Initially, pure or GalM-h-associated chitosan nanoparticles (NPs) were produced by ionotropic gelation. Despite the composition, NPs displayed positive zeta potential values between +18.0 and +24.5 mV and a size ranging between 263 and 340 nm. In addition, RIF payloads were approximately 1.0% w/w. To increase the encapsulation efficiency, a more complex nanocarrier based on poly(ε-caprolactone)-b-poly(ethylene-glycol)-b-poly(epsilon-caprolactone) flower-like polymeric micelles (PMs) coated with chitosan or GalM-h/chitosan were engineered. These polymeric micelles displayed a bimodal size distribution with a positive zeta potential between +6.7 and +8.1 mV. More importantly, the drug encapsulation capacity was increased 12.9-fold with respect to the NPs. An agglutination assay with concanavalin A confirmed the presence of GalM-h on the surface. Qualitative uptake studies by fluorescence microscopy revealed that GalM-h-modified systems were taken-up by RAW 264.7 murine macrophages. Finally, the intracellular/cell associated levels of RIF following the incubation of cells with free or encapsulated drug indicated that while chitosan hinders the uptake, GalM-h leads to a significant increase of the intracellular concentration.