Mariana Ionita

Dr. Mariana Ionita

University Politehnica of Bucharest, Bucuresti, Romania
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 February 2014 in Carbohydrate Polymers
Verified
Journal Article
Closed access
Andreea Madalina PandeleAndreea Madalina Pandele
Andreea Madalina Pandele
Mariana IonitaMariana Ionita
Mariana Ionita
LCLivia Crica
Livia Crica
Sorina DinescuSorina Dinescu
Sorina Dinescu
MCMarieta Costache
Marieta Costache
Horia  IovuHoria Iovu
Horia Iovu

Verified
Journal Article
Open access
PDF file
Sorina DinescuSorina Dinescu
Sorina Dinescu
Mariana IonitaMariana Ionita
Mariana Ionita
S(Simona Rebeca Nazarie (Ignat)
Simona Rebeca Nazarie (Ignat)
Marieta CostacheMarieta Costache
Marieta Costache
Anca HermeneanAnca Hermenean
Anca Hermenean
The main goal of bone tissue engineering (BTE) is to refine and repair major bone defects based on bioactive biomaterials with distinct properties that can induce and support bone tissue formation. Graphene and its derivatives, such as graphene oxide (GO), display optimal properties for BTE, being able to support cell growth and proliferation, cell attachment, and cytoskeleton development as well as the activation of osteogenesis and bone development pathways. Conversely, the presence of GO within a polymer matrix produces favorable changes to scaffold morphologies that facilitate cell attachment and migration i.e., more ordered morphologies, greater surface area, and higher total porosity. Therefore, there is a need to explore the potential of GO for tissue engineering applications and regenerative medicine. Here, we aim to promote one novel scaffold based on a natural compound of chitosan, improved with 3 wt.% GO, for BTE approaches, considering its good biocompatibility, remarkable 3D characteristics, and ability to support stem cell differentiation processes towards the bone lineage.

1 March 2018 in Carbohydrate Polymers
Verified
Journal Article
Closed access
Mariana IonitaMariana Ionita
Mariana Ionita
LCLivia Elena Crică
Livia Elena Crică
SVStefan Ioan Voicu
Stefan Ioan Voicu
Sorina DinescuSorina Dinescu
Sorina Dinescu
FMFlorin Miculescu
Florin Miculescu
Horia  IovuHoria Iovu
Horia Iovu

3 October 2019 in Journal of Nanobiotechnology
Verified
Journal Article
Open access
PDF file
TTTeddy Tite
Teddy Tite
ECElena Alina Chiticaru
Elena Alina Chiticaru
JBJorge Burns
Jorge Burns
Mariana IonitaMariana Ionita
Mariana Ionita
Diverse properties of graphenic materials have been extensively explored to determine properties that make good electrochemical nanomaterial-based biosensors. These are reviewed by critically examining the influence of graphene nano-morphology, lattice defects and conductivity. Stability, reproducibility and fabrication are discussed together with sensitivity and selectivity. We provide an outlook on future directions for building efficient electrochemical biosensors.

24 March 2015 in High Performance Polymers
Verified
Journal Article
Closed access
Mariana IonitaMariana Ionita
Mariana Ionita
Andreea Madalina PandeleAndreea Madalina Pandele
Andreea Madalina Pandele
LCLivia Elena Crica
Livia Elena Crica
AOAlexandru Cosmin C Obreja
Alexandru Cosmin C Obreja
The study highlights the first use of ammonia-functionalized graphene oxide (GO-NH2) as an additive to enhance the features of polysulfone (PSF) matrix. Composite membrane materials with different ratios of GO-NH2 (0.25, 0.5, 1, and 1.5 wt%) were obtained by phase inversion method. Subsequently structural and morphological characteristics were investigated by Raman spectroscopy, X-ray diffraction (XRD), scanning, and transmission electron microscopy (TEM). Lastly, mechanical and thermogravimetric studies were performed in order to establish whether GO-NH2 addition influenced PSF/GO-NH2 composite material performance. Raman spectroscopy, XRD, and TEM revealed evenly dispersed GO-NH2 within PSF/GO-NH2 composite membrane material forming exfoliated structures for lower concentration of GO-NH2. An enhancement in both mechanical and thermal characteristics was attained. The decomposition temperature at which the mass loss is 3%, of the composite membrane material with 1 wt% GO-NH2 was increased with 7°C. Conversely, an increase in Young’s modulus from 246 MPa to 285 MPa was achieved with the addition of 1 wt% GO-NH2 within the PSF matrix.

2 September 2015 in Polymers for Advanced Technologies
Verified
Journal Article
Closed access
PDF file
Mariana IonitaMariana Ionita
Mariana Ionita
LCLivia Elena Crica
Livia Elena Crica
SVStefan Ioan Voicu
Stefan Ioan Voicu
Andreea Madalina PandeleAndreea Madalina Pandele
Andreea Madalina Pandele
Horia  IovuHoria Iovu
Horia Iovu