Preparation and characterization of hydroxyapatite based nano-composite biomorphic implants

Barabáş, Réka; Rigo, M. O.; Eniszné-Bódogh, Margit; Moisa, Corina; Cadar, Oana

doi:10.24193/subbchem.2018.3.11

Cited by 5 publications

(5 citation statements)

References 29 publications

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“…The surface structure of coated implants suffers changes of greater corrosion resistance and also in apatite formation due to the occurrence of passive oxide layer [26]. Future studies should be done to investigate the osteoblasts and osteocytes adhesion on coating materials such as HA or TiO 2 , as well as the possibility to create osteoclastic inhibition [27,28].…”

Section: Resultsmentioning

confidence: 99%

"Innovative chemical coating protocol for Titanium alloy implants "

Armencea¹,

Berce²,

Todea³

et al. 2019

Studia UBB Chemia

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This paper aims to investigate the "in vivo" behavior (over an extended period of time-six months) of hydroxyapatite and SiO2-TiO2 coating of Ti6Al7Nb alloy implants manufactured by selective laser melting. Innovative chemical implant coating by immersion technique was studied and the results were analyzed by optical and scanning electron microscopy (SEM). The results showed better osseointegration process for the coated implants and a much stabler biological behavior on the surface of the chemical treated implants.

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Section: Resultsmentioning

confidence: 99%

"Innovative chemical coating protocol for Titanium alloy implants "

Armencea¹,

Berce²,

Todea³

et al. 2019

Studia UBB Chemia

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“…In this context, the development of the composite materials with specific characteristics for the most diverse applications is in the continuous attention of the scientific community and industrial developers [3]. Thus, developments of ceramic composites [4] for various medical applications [5,6], electrodes for electrochemical synthesis [7], thin layers for photocatalysis [8], polymer-based composites with various fillers [9 -16] are reported with uses including the electrical engineering field [17][18][19][20], etc.…”

Section: Introductionmentioning

confidence: 99%

“…The composite materials development is intended to meet the specific requirements of the target application such as biocompatibility [5,6], flammability [21], electrical, dielectric, and/or magnetic performance [17][18][19][20], ablation [9], mechanical characteristics [14,20], resistance to the action of microorganisms/biodegradability [11,22,23], etc. The development of 3D printers has opened new research directions in the field of advanced materials, respectively the performed of 3D printable materials.…”

Section: Introductionmentioning

confidence: 99%

Obtaining and Characterizing 3D Printable Polymer Based Composites with BaTiO3 Filler

Caramitu¹,

Dascalu²,

Ion³

et al. 2021

Mater. Plast.

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By the extrusion and injection technique, polymer-based composite samples (polypropylene and thermoplastic polyurethane) were obtained with BaTiO3 filler in concentrations between 0 and 35 %. Following the preliminary characterizations performed by coupled thermal analysis techniques, it was found that the composite samples obtained have thermal stability up to a temperature of about 250 oC and can be processed by extrusion at temperatures between 180 and 240oC. Above this temperature, a series of degradation processes take place by successive thermooxidation with the formation of volatile products.The electrical characterization of the composite samples was performed by the dielectric spectroscopy technique, which showed that the A tga dielectric losses increase as the BaTiO3 content of the composite increases. The maximum increase being recorded at 50 Hz (the slope A tga /% BaTiO3 about 0.003 /% BaTiO3). It was also found, that the electrical conductivity (o) of the composite increases with the increase of content in BaTiO3 so that o at 100 kHz for the composite with 35 % BaTiO3 is about 50 times higher than for the reference sample M 0 (without filler).

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“…In case of prolonged treatment with antibiotics, the intestinal flora is disbalanced and favours the development of pathogenic bacteria. Besides these negative effects, one must not forget the adverse effects of certain antibiotics on the liver, kidneys or ear [1,2]. Antibiotics intake can be limited by a proper medical education of the population, through physicians' and pharmacists' active involvement.…”

Section: Introductionmentioning

confidence: 99%

Randomized Evaluation on the Consumption of Antibiotics in Community Pharmacies

Moisa¹

2018

FARMACIA

Self Cite

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According to the statistics, each year 400,000 Europeans develop infections with antibiotic-resistant bacterial strain, and 25,000 die due to the exhaustion of all therapeutic resources. These statistics are alarming, considering that medical services have become lately more and more accessible, but the "antibiotics era", namely the prescribing of these pharmacological agents on a large scale, generated the present situation. There is a category of patients who seek specialist medical services, yet many of them also make errors when it comes to the correct administration of the antibiotics prescribed. The emergence of antibiotic resistant strains occurred due to the of insufficient or excessive treatment schemes, insufficient doses or treatment duration. Physicians and pharmacists have an important role in limiting the occurrence and development of the antibiotics resistant strains. The objective of the present study was the comparative assessment of antibiotic's consumption in urban and rural areas, in a western region of Romania for both children and adults, the medicines being prescribed by physicians and monitored through community pharmacies. The study was conducted over 2 years and involved five types of active substances, namely amoxicillin, cefuroxime, clarithromycin, sulphametoxazole + trimethoprim and cefixime. RezumatConform unor statistici, 400.000 de europeni dezvoltă anual infecƫii cu bacterii rezistente la antibiotice, iar 25.000 decedează în urma epuizării tuturor resurselor terapeutice. Aceste statistici sunt îngrijorătoare cu atât mai mult cu cât în ultima perioadă serviciile medicale au devenit mai accesibile, dar utilizarea pe scară largă a acestor agenți farmacologici în "epoca antibioticelor" a generat această situație. Există o categorie de pacienți care apelează la serviciile medicale de specialitate, dar cu toate acestea apar deficiențe în ceea ce privește administrarea corectă a antibioticelor prescrise de către medic. Dezvoltarea tulpinilor rezistente la antibiotice s-a datorat aplicării unor scheme de tratament insuficiente sau excesive, doze sau durate de tratament nerespectate. Un rol important în limitarea apariției și dezvoltării acestor tulpini rezistente la antibiotice îl au medicii și farmaciștii, prin consiliere adecvată. Obiectivele prezentului studiu au fost compararea și evaluarea consumului de antibiotice în mediul rural și urban într-o regiune din vestul României, atât la copii cât și la populația adultă, antibioticele fiind prescrise de către medic și monitorizate prin farmacii comunitare. Studiul s-a desfășurat pe o perioadă de doi ani și a cuprins cinci substanțe active diferite: amoxicilină, cefuroximă, claritromicină, sulfametoxazol + trimetoptim și cefiximă.

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Preparation and characterization of hydroxyapatite based nano-composite biomorphic implants

Cited by 5 publications

References 29 publications

"Innovative chemical coating protocol for Titanium alloy implants "

"Innovative chemical coating protocol for Titanium alloy implants "

Obtaining and Characterizing 3D Printable Polymer Based Composites with BaTiO3 Filler

Randomized Evaluation on the Consumption of Antibiotics in Community Pharmacies

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