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academies
October 22-23, 2018 | Frankfurt, Germany
International Conference on
Robo t i c s a n d A u t oma t i o n
B iomater ial s and Nanomater ial s
Joint Event
&
Journal of Biomedical Research | Volume 29
Functional fe-base biodegradable materials for medical applications
Cimpoesu N
Technical University Gheorghe Asachi of Iasi, Romania
Ironrepresent themainsourceofmetal applicationsworldwide
based on consumption of steel and cast iron. After the success
of stainless steels used in medical field the world is expected
to use new materials with special properties in order to treat
specific medical problems. With a certain chemical composition
Fe-based alloys can fulfill two main functions in the same time:
shape memory effect and biodegradability that can be used in
medical applications. Shape memory alloys (SMAs) have been
analyzed intensively over the last years by different point of view
(shape memory effect, superelasticity or damping capacity) by
several research teams. Biodegradable metal alloys (Mg, Fe
and Zn based) have recently reached an important scientific
and medical interest for applications as implant materials
in cardiovascular and in orthopedic surgery. Biodegradable
materials used in implantology must meet, in addition to the
general requirements for an implantable material, two main
functions for applications: the first is to provide the mechanical
stability of the recovered element during the first part of the
healing period and the second of the gradual degradation in
a certain period of time. The first function can be provided
by coating the biodegradable element with one or more
biocompatible thin layers to ensure the integrity of the material
for a precise-established period of time. The second function
can be accomplished by introducing micro-alloying elements
in Fe-based alloy as small quantities in the form of micro- or
nano- particles to stimulate and generalize degradation of the
material in contact with an electrolyte solution. We choose
for thin coatings, materials based on ceramics (HA, HA+ZrO2
and HA+Ag) and Mg, Ca or Zn as micro-alloying elements.
Part of this research was funded by a research grant of TUIASI,
project number 1420/2018: Design and characterization of
a multifunctional element with memory effect for medical
applications,codeTUIASI-GI-2018-PN-III-P1-1.1-TE-2016-1420.
Speaker Biography
Cimpoesu N has completed his PhD at the age of 30 years from Gh. Asachi Technical
University of Iasi, Romania, in the field of damping capacity of shape memory alloys.
He is the coordinator of Microscopy Laboratory (optical microscopy, scanning electron
microscopy and atomic force microscopy), assoc. prof. at Gh. Asachi Technical
University, Romania. He has over 85 ISI publications that have been cited over 450
times, and his publication H-index is 12.
e:
Cimpoesu N, Robotics & Biomaterials 2018, Volume 29
DOI: 10.4066/biomedicalresearch-C6-016