Alexandra Sousa Rodrigues

Prof. Dr. Alexandra Sousa Rodrigues

Mechanical Engineering Department, Lisbon School of Engineering (ISEL), Polytechnic University of Lisbon, Lisbon, Lisboa, Portugal
orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

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

Representative Publications

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1 December 2014 in Journal of the Mechanical Behavior of Biomedical Materials
Verified
Journal Article
Closed access
NONuno Guitian Oliveira
Nuno Guitian Oliveira
TSTatiana Sirgado
Tatiana Sirgado
LRLuis Reis
Luis Reis
LPLuís F.V. Pinto
Luís F.V. Pinto
CSCláudia Lobato da Silva
Cláudia Lobato da Silva
Alexandra Sousa RodriguesAlexandra Sousa Rodrigues
Alexandra Sousa Rodrigues

13 June 2012 in Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
Verified
Journal Article
Open access
PDF file
ISIsa Ct Santos
Isa Ct Santos
Alexandra Sousa RodriguesAlexandra Sousa Rodrigues
Alexandra Sousa Rodrigues
LFLígia Figueiredo
Lígia Figueiredo
LRLuis Rocha
Luis Rocha
Joao Manuel R.S. TavaresJoao Manuel R.S. Tavares
Joao Manuel R.S. Tavares
An aneurysm is a localized blood-filled dilatation of an artery whose consequences can be deadly. One of its current treatments is endovascular aneurysm repair, a minimally invasive procedure in which an endoprosthesis, called a stent–graft, is placed transluminally to prevent wall rupture. Early stent–grafts were custom designed for the patient through the assembling of off-the-shelf components by the operating surgeon. However, nowadays, stent–grafts have become a commercial product. The existing endoprostheses differ in several aspects, such as shape design and materials, but they have in common a metallic scaffold with a polymeric covering membrane. This article aims to gather relevant information for those who wish to understand the principles of stent–grafts and even to develop new devices. Hence, a stent–graft classification based on different characteristics is presented and the desired features for an ideal device are pointed out. Additionally, the materials currently in use to fabricate this type of endoprosthesis are reviewed and new materials are suggested.

1 March 2020 in Journal of the Mechanical Behavior of Biomedical Materials
Verified
Journal Article
Closed access
LFLígia Figueiredo
Lígia Figueiredo
RFRita Fonseca
Rita Fonseca
LPLuís F.V. Pinto
Luís F.V. Pinto
FFFrederico Ferreira
Frederico Ferreira
Amelia AlmeidaAmelia Almeida
Amelia Almeida
Alexandra Sousa RodriguesAlexandra Sousa Rodrigues
Alexandra Sousa Rodrigues

1 December 2018 in Science and Technology of Materials
Verified
Journal Article
Closed access
Alexandra Sousa RodriguesAlexandra Sousa Rodrigues
Alexandra Sousa Rodrigues
LFL. Figueiredo
L. Figueiredo
HDHerminio Diogo
Herminio Diogo
JBJ. Bordado
J. Bordado

1 July 2013 in Tribology International
Verified
Journal Article
Closed access
Alexandra Sousa RodriguesAlexandra Sousa Rodrigues
Alexandra Sousa Rodrigues
LFLígia Figueiredo
Lígia Figueiredo
JBJoão Carlos Moura Bordado
João Carlos Moura Bordado

1 January 2015 in Procedia Engineering
Verified
Journal Article
Open access
LFLígia Figueiredo
Lígia Figueiredo
Carla MouraCarla Moura
Carla Moura
LPLuís F.V. Pinto
Luís F.V. Pinto
FFFrederico Ferreira
Frederico Ferreira
Alexandra Sousa RodriguesAlexandra Sousa Rodrigues
Alexandra Sousa Rodrigues
In this work, plasticizer agents were incorporated in a chitosan based formulation, as a strategy to improve the fragile structure of chitosan based-materials. Three different plasticizers: ethylene glycol, glycerol and sorbitol, were blended with chitosan to prepare 3D dense chitosan specimens. The properties of the obtained structures were assessed for mechanical, microstructural, physical and biocompatibility behavior. The results obtained revealed that from the different specimens prepared, the blend of chitosan with glycerol has superior mechanical properties and good biological behavior, making this chitosan based formulation a good candidate to improve robust chitosan structures for the construction of bioabsorbable orthopedic implants