About thermostability of biocompatible Ti–Zr–Ta–Si amorphous alloys

Nicoară, Mircea; Răduţă, Aurel; Locovei, Cosmin; Buzdugan, Dragoş; Stoica, M.

doi:10.1007/s10973-016-5532-5

Cited by 9 publications

(4 citation statements)

References 49 publications

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“…Sarac et al demonstrated that titanium-based metallic glasses (MGs) outperform the gold-standard Ti–6Al–4V when used as dental implants. , Yet, the development of titanium-based metallic glasses devoid of potentially toxic metals is imperative to mitigate any potential inflammatory reactions within the body . In light of this, titanium-based bulk metallic glasses (BMGs) have emerged as promising implant materials due to their advantageous engineering properties such as low elastic modulus, high strength, toughness, corrosion resistance and, in some cases, even intrinsic antibacterial properties, superior to conventional crystalline Ti-alloys. ,− Consequently, numerous Ti-based BMGs have been reported, exhibiting favorable characteristics compared to traditional crystalline Ti-based alloys. , Nevertheless, many of these BMGs contain elements like Ni, Cu, and/or Be, which are known to be harmful to the human body due to their cytotoxicity. ,− ,− As a result, their inclusion limits the application of Ti-based BMGs in the medical field. Hence, the pursuit of new glass-forming alloys without potentially toxic elements becomes imperative to effectively harness Ti-based metallic glasses for implant materials.…”

Section: Introductionmentioning

confidence: 99%

“… 14 , 19 Nevertheless, many of these BMGs contain elements like Ni, Cu, and/or Be, which are known to be harmful to the human body due to their cytotoxicity. 1 , 3 − 5 , 20 − 22 As a result, their inclusion limits the application of Ti-based BMGs in the medical field. Hence, the pursuit of new glass-forming alloys without potentially toxic elements becomes imperative to effectively harness Ti-based metallic glasses for implant materials.…”

Section: Introductionmentioning

confidence: 99%

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Anticorrosion and Antimicrobial Tannic Acid-Functionalized Ti-Metallic Glass Ribbons for Dental Abutment

Yüce,

Sharifikolouei,

Micusik

et al. 2024

ACS Appl. Bio Mater.

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In this study, a recently reported Ti-based metallic glass (MG), without any toxic element, but with a significant amount of metalloid (Si−Ge−B, 18 atom %) and minor soft element (Sn, 2 atom %), was produced in ribbon form using conventional single-roller melt-spinning. The produced Ti 60 Zr 20 Si 8 Ge 7 B 3 Sn 2 ribbons were investigated by differential scanning calorimetry and X-ray diffraction to confirm their amorphous structure, and their corrosion properties were further investigated by open-circuit potential and cyclic polarization tests. The ribbon's surface was functionalized by tannic acid, a natural plant-based polyphenol, to enhance its performance in terms of corrosion prevention and antimicrobial efficacy. These properties can potentially be exploited in the premucosal parts of dental implants (abutments). The Folin and Ciocalteu test was used for the quantification of tannic acid (TA) grafted on the ribbon surface and of its redox activity. Fluorescent microscopy and ζ-potential measurements were used to confirm the presence of TA on the surfaces of the ribbons. The cytocompatibility evaluation (indirect and direct) of TA-functionalized Ti 60 Zr 20 Si 8 Ge 7 B 3 Sn 2 MG ribbons toward primary human gingival fibroblast demonstrated that no significant differences in cell viability were detected between the functionalized and as-produced (control) MG ribbons. Finally, the antibacterial investigation of TA-functionalized samples against Staphylococcus aureus demonstrated the specimens' antimicrobial properties, shown by scanning electron microscopy images after 24 h, presenting a few single colonies remaining on their surfaces. The thickness of bacterial aggregations (biofilm-like) that were formed on the surface of the as-produced samples reduced from 3.5 to 1.5 μm.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Anticorrosion and Antimicrobial Tannic Acid-Functionalized Ti-Metallic Glass Ribbons for Dental Abutment

Yüce,

Sharifikolouei,

Micusik

et al. 2024

ACS Appl. Bio Mater.

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“…The processing techniques of metallic biomaterials and the excesive biomechanical loading are the main causes for metallic implant failure, as is mentioned in various studies [20][21][22][23]. Even various studies describe now the potential of biodegradable metals and metallic glass for orthopedic implants, we consider that the classical metallic biomaterials like titatinium and his alloys are still the best option available for trauma implants [24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Short Term Behaviour of Fixed-Loop Cortical Suspension System Used for Surgical Treatment of <i>Hallux valgus</i>

Ene

Nica

Panti

et al. 2017

KEM

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Hallux valgus represents an acquired foot deformity characterized by lateral deviation of the hallux and medial deviation of the first metatarsal. Pain during gait is the main complain and is caused by reduction of plantar pressure under the first ray leading to insufficiency of the first ray and overload of the lesser rays. Treatment can be nonoperative or surgical with more than one hundred surgical techniques described so far. The scope of this study was to assess the short term reliability and stability of fixed loop suspension systems used for surgical treatment of this pathology using radiological evaluation of hallux valgus angle and the intermetatarsal angle. Our results show good stability of the reduction and good reliability of the suspension system, with a six months follow-up. Only one specific complication (failure of the wiring material) is highlighted by our conclusions and the need for biomechanical testing in controlled laboratory studies.

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“…The potential advantages given by these alloys to the orthopedic implants are similar or better than other bioresorbable orthopedic devices [11][12][13][14][15][16][17][18]. Other directions to improve the properties of existing metallic biomaterials are related to the development of new metallic glass or some composite materials with improved mechanical properties [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Fractographic Evaluation of the Metallic Materials for Medical Applications

Ghiban

Varlan

Niculescu

et al. 2017

KEM

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The manner of studying of the fracture modes could be done through fractography. Fractography is the study of fracture surface morphologies and it gives an insight into damage and failure mechanisms, underpinning the development of physically-based failure criteria. In composites research it provides a crucial link between predictive models and experimental observations. Fractographic methods are routinely used to determine the cause of failure in all engineering structures, especially in product failure and the practice of forensic engineering or failure analysis. In material science research, fractography is used to develop and evaluate theoretical models of crack growth behavior. One of the aims of fractographic examination is to determine the cause of failure by studying the characteristics of a fracture surface. Different types of crack growth produce characteristic features on the surface, which can be used to help identify the failure mode. The overall pattern of cracking can be more important than a single crack, however, especially in the case of brittle behavior materials. Initial fractographic examination is commonly carried out on a macro scale utilizing low power optical microscopy and oblique lighting techniques to identify the extent of cracking, possible modes and likely origins. When it is needed to identify the nature of failure, an analysis at high magnification is required and scanning electron microscopy (SEM) seems to be the best choice. The problem of fracture behavior of biometallic materials is a real one, being well and repeatedly presented in literature. Variations in alloy compositions can lead to subtle differences in mechanical, physical, or electrochemical properties. However, these differences are minor compared with the potential variability caused by differences in fabrication methodology, heat treatment, cold working, and surface finishing, where surface treatments are particularly important for corrosion and wear properties. The aim of this paper, therefore, is to summarize the different types of metals and alloys used as biomaterials, the corrosion of metals in the human body, and different failure damages of metallic implants.

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About thermostability of biocompatible Ti–Zr–Ta–Si amorphous alloys

Cited by 9 publications

References 49 publications

Anticorrosion and Antimicrobial Tannic Acid-Functionalized Ti-Metallic Glass Ribbons for Dental Abutment

Anticorrosion and Antimicrobial Tannic Acid-Functionalized Ti-Metallic Glass Ribbons for Dental Abutment

Short Term Behaviour of Fixed-Loop Cortical Suspension System Used for Surgical Treatment of <i>Hallux valgus</i>

Fractographic Evaluation of the Metallic Materials for Medical Applications

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