Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Gabriela Sima"'
Autor:
Renata Maria Văruț, Luciana Teodora Rotaru, Flavius Nicușor Truicu, Cristina Elena Singer, Iliescu Iulian-Nicolae, Alin Iulian Silviu Popescu, Cristina Popescu, Cristina Teisanu, Gabriela Sima, Oana Elena Nicolaescu
Publikováno v:
Journal of Functional Biomaterials, Vol 15, Iss 7, p 181 (2024)
The study evaluates the osteointegration of hydroxyapatite (HAp) and hydroxyapatite-titanium (HApTi) biocomposites implanted in the femurs of rabbits. The biocomposites were fabricated using powder metallurgy and subjected to a two-step sintering pro
Externí odkaz:
https://doaj.org/article/139b4a3a899042f3ad0adb31d2600141
Autor:
Horia Octavian Manolea, Johny Neamţu, Gabriela Sima, Oana Gingu, Ion Scorei Romulus, Ioana Mitruţ, Andreea Silvia Pîrvu, Andrei Biţă, Renata Maria Văruţ, Alina Cristina Teişanu, Gheorghe S. Dragoi, Petru Razvan Melinte, Otilia Constantina Rogoveanu, Carmen Nicoleta Oancea
Publikováno v:
Romanian Journal of Morphology and Embryology
Background The identification of biocomposites that improve cell adhesion and reduce bone integration time is a great challenge for implantology and bone reconstruction. Aim Our aim was to evaluate a new method of chemisorption deposition (CD) for im
Autor:
Johny Neamtu, Cristina Teisanu, Livia Elena Sima, Oana Gingu, Gabriela Sima, Renata Maria Varut
Publikováno v:
Journal of Science and Arts. 20:969-976
There is considerable interest in the discovery of biomimetic materials that improve cell adhesion and reduce the time of bone integration of implants. In vitro bone cells biocompatibility was performed for the two types of biocomposites hydroxyapati
Autor:
Cristina Teisanu, Oana Gingu, Gabriela Sima, Renata Maria Varut, Valentin Costel Manda, Johny Neamtu
Publikováno v:
Journal of Science and Arts. 20:731-738
Implant infections are the result of bacterial adhesion to the implant surface and subsequent biofilm formation at the implant site. A sustained and high antibiotic concentration over minimal inhibitory concentration (MIC) of pathogenic bacteria at t
Autor:
Gabriela Sima, Benjamin Daiguebonne, Martin Schwarz, Ionela Gabriela Bucse, Leonard Marius Ciurezu-Gherghe, Tibor Hajsz
Publikováno v:
Advanced Engineering Forum. 34:81-87
Recent developments in the field of tissue engineering recommend the 3D printing to obtain the complex shape of the final alloplastic grafts (for soft or hard tissues). The medium pressure injection moulding (MEDPIM) technology could be a cost-effect
Autor:
Vasile Danut Cojocaru, Gabriela Sima
Publikováno v:
Advanced Engineering Forum. 27:42-49
Designing and processing of the alloplastic bone grafts represent one of the newest trends in bone tissue engineering, solving a lot of trauma problems of the patients simultaneously with technological and economical achievements. Recent developments
Publikováno v:
Applied Mechanics and Materials. 880:248-255
The raw material to be compacted by moulding is represented by aluminium alloy (ALUMIX 321) powder particles as metallic matrix and carbamide as foaming agent. The raw material to be injected is represented by the mixture (feedstock) between the wax-
Publikováno v:
Advanced Materials Research. 1128:162-170
The paper focuses on the mechanical characterization of porous biocomposites based on hydroxyapatite submicronic powders (< 200 nm), respectively micronic powders particle (30-50 μm) as matrix, reinforced by titanium hybrid powders (15 and 20% mass;
Publikováno v:
Advanced Materials Research. 1128:178-186
This paper presents a comparative analysis of the foaming process developed in hydroxyapatite (HAp)-based bicomposites as a function of the foaming agent. The matrix of the biocomposite consists of either submicronic or micronic powder particles of H
Publikováno v:
Advanced Engineering Forum. 13:42-47
Using powder metallurgy techniques new porous materials for self-lubricating bearings were developed. These materials are characterized by total porosity, which represents their major advantage for tribological applications, acting like their own oil