Biography:

In the past Anton Ficai has collaborated on articles with Denisa Ficai and Maria Sonmez. One of their most recent publications is 1 - Recent advances in using magnetic materials for environmental applications. Which was published in journal .

More information about Anton Ficai research including statistics on their citations can be found on their Copernicus Academic profile page.

Anton Ficai's Articles: (18)

1 - Recent advances in using magnetic materials for environmental applications

AbstractDecision makers as well as peoples are gradually aware about the importance of the environmental protection and increasing attention is paid for annihilate the negative aspects related to the humankind activities (industrial, agricultural, or domestic activities). In this context, the development of new materials or optimizing existent ones for environmental applications and especially for water purification is increasing as importance. The current work is devoted to the identification of the most used classes of nanomaterials for environmental applications, the mechanisms of water purification as well as the advances in this field induced by the synergic use of more components, especially magnetic materials and metals and metal-oxides, carbon-based materials, or silicates. The main advantages of the use of composite materials and core–shell structures are related to the individual properties, as well as due to the synergy between these components. The nanometric range of these materials is important because assure a high specific surface area and consequently high interaction sites with the species from aqueous media. Based on the literature review, the removal of the hazardous species from water via absorption/desorption mechanism seems to be a very attractive way of improving the quality of water from the point of view of efficiency, costs, human resources involved, and so on.

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Synthesis and characterization of hybrid PVA/Al2O3 thin film

AbstractThis paper presents the synthesis and characterization of hybrid PVA/Al2O3 thin film at room temperature (RT) and respectively under hydrothermal conditions (HC). The synthesis starts from commercially available Al2O3 and 10% PVA solution. When working at RT, regardless of the mixing ratio of PVA and Al2O3 (1:4; 1:1 and 4:1 wt) two phases can be identified by SEM due to the high difference between the densities of the two components. When working under HC, the hybrid PVA/Al2O3 thin film is homogeneous due to the reactions which occur between PVA and Al2O3 as proved by XRD and FTIR.

Functionalized antibiofilm thin coatings based on PLA–PVA microspheres loaded with usnic acid natural compounds fabricated by MAPLE

Highlights•MAPLE deposition of microspheres to prepare antibiofilm surfaces.•Novel thin coatings with anti-adherent properties.•Novel thin coatings based PLA–PVA microspheres.•Novel microspheres based PLA–PVA and natural compounds (usnic acid).

MAPLE fabricated [email protected] and (3-hidroxybutyric acid-co-3-hidroxyvaleric acid)–polyvinyl alcohol microspheres coated surfaces with anti-microbial properties

Highlights•Thin coatings based on P(3HB-3HV)–PVA–[email protected] microspheres.•Anti-adherence and anti-biofilm coatings.•New surface to control and prevent microbial biofilms.

Fabrication and characterization of functionalized surfaces with 3-amino propyltrimethoxysilane films for anti-infective therapy applications

Highlights•Thin coatings based on 3-amino propyltrimethoxysilane with anti-adherent properties.•PVC modified surfaces with improved resistance to microbial colonization.•Firstly report on antimicrobial properties of 3-amino propyltrimethoxysilane.

Full Length ArticleMAPLE deposition of Nigella sativa functionalized Fe3O4 nanoparticles for antimicrobial coatings

Highlights•Biocompatible thin coatings.•Antimicrobial laser processed films.•[email protected] nanoparticles inhibit biofilm formation.•Tailored biomedical surfaces to avoid microbial colonization.

ReviewApplications of mesoporous silica in biosensing and controlled release of insulin

AbstractThe development of new oral insulin delivery systems could bring significant benefits to insulin-dependent patients due to the simplicity of the method, avoidance of pain caused by parenteral administration and maintenance of optimal therapeutic levels for a longer period. However, administration of such therapeutic proteins orally remains a challenge because insulin (Ins) is a very sensitive molecule and can be easily degraded under the existing pH conditions in the stomach and intestines. Moreover, due to the large size of insulin, intestinal epithelium permeability is very low. This could be improved by immobilizing insulin in the mesoporous silica pores (MSN), acting as a shield to protect the molecule integrity from the proteolytic degradation existing in the stomach and upper part of the small intestine. Due to the high adsorption capacity of insulin, biocompatibility, ease of functionalization with various organic and/or inorganic groups, high mechanical and chemical resistance, adjustable pore size and volume, MSN is considered an ideal candidate for the development of controlled release systems that are sensitive to various stimuli (pH, temperature) as well as to glucose. Modifying MSN surfaces by coating with various mucoadhesive polymers (chitosan, alginate, etc.) will also facilitate interaction with the intestinal mucus and improve intestinal retention time. Moreover, the development of glucose-responsive systems for achieving MSN-based self-regulated insulin delivery, decorated with various components serving as sensors – glucose oxidase (GODx) and phenylboronic acid (PBA) that can control the insulin dosage, avoiding overdose leading to serious hypoglycemia. MSN have also been tested for application as biosensors for glucose monitoring.

Layer by layer deposition of hydroxyapatite onto the collagen matrix

AbstractLayer by layer (LbL) deposition is a useful method for deposition of many inorganic (including metals, oxides and phosphates) and organic (including polymers and proteins) components on a large range of substrates. The LbL deposition of hydroxyapatite (HA) onto a collagen matrix involves HA synthesis on the collagen matrix starting from electrically charged precursors such as Ca2+ and PO43− at a proper pH to precipitate the desired calcium phosphate.The LbL deposition process was continuously monitored in order to study the amount of HA deposited in each layer. The deposition of the first layers of HA was concluded to be highly influenced by the collagen matrix. When the collagen matrix is crosslinked with glutaraldehyde, the matrix structure is not modified during the deposition, and the porosity will decrease with the number of layers until saturation is reached. Following pore saturation, HA will be only deposited onto the mineralized collagen matrix surface. The obtained composite materials were characterized by XRD, SEM, DTA-TG and FTIR.

The influence of collagen support and ionic species on the morphology of collagen/hydroxyapatite composite materials

AbstractThe purpose of this investigation is to study the influence of collagenous supports and ionic species on the precipitation of hydroxyapatite (HA) from aqueous solutions. To this end, we obtained hydroxyapatite by co-precipitation from a solution of calcium hydroxide and sodium dihydrogenophosphate. The formation of HA was studied by energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The results of this study indicate that the morphology of hydroxyapatite is highly influenced by the support material and the ionic species present. The obtained materials were studied by scanning electron microscopy (SEM).

Self-assembled collagen/hydroxyapatite composite materials

AbstractThe purpose of this study is the preparation and characterization of highly oriented collagen/hydroxyapatite (COLL/HA) composite materials, through a self-assembling method, starting from collagen gel and hydroxyapatite precursors by an in vitro modified mineralization method. Briefly, this method can be descript as follow: collagen gel (containing 3.21% collagen) is firstly let 24 h in contact with Ca(OH)2 suspension in order that Ca2+ neutralize the COOH groups than, in the second stage, the corresponding NaH2PO4 is added, in order to form HA. The synthesis of COLL/HA nanocomposite is performed under controlled experimental conditions: 37 °C, pH = 9 and air drying. The morphology of the composite material is strongly influenced by the drying method, especially due to the drying time. If the freeze drying method is used the obtained material is highly porous, but no orientation can be observed. In air, the drying is slow enough so that the wet composite material can reorganize and become uniaxial oriented. Our results prove that in certain conditions, oriented COLL/HA nanocomposites materials can be obtained, starting from collagen and hydroxyapatite precursors, through a very simple and accessible method. It is quite difficult to quantify the orientation degree of the composite, but, most of the fibres are uniaxialy oriented, the average orientation degree being 97.46%. The resulted composite materials were characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-ray diffraction (XRD), Differential Thermal Analysis coupled with Thermal Gravimetry Analysis (DTA-TG), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM).

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