Antioxidant and Antimicrobial Activity of Tellurium Dioxide Nanoparticles Sols

Zhong, Cai Ling; Qin, Bi Yin; Xie, Xin; Bai, Yan

doi:10.4028/www.scientific.net/jnanor.25.8

Cited by 14 publications

(5 citation statements)

References 35 publications

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“…Metals. A number of metals, e.g., silver (156)(157)(158), iron (159), mercury (160), tellurium (161,162), copper (163,164), zinc (21,165,166), and lead (167), have been shown to possess antimicrobial properties. In contrast to antibiotics, metals do not pose the risk of decomposition and can usually be processed at high temperatures (168).…”

Section: Nonantibiotic Antimicrobial Therapiesmentioning

confidence: 99%

Staphylococcal Osteomyelitis: Disease Progression, Treatment Challenges, and Future Directions

et al. 2018

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Osteomyelitis is an inflammatory bone disease that is caused by an infecting microorganism and leads to progressive bone destruction and loss. The most common causative species are the usually commensal staphylococci, with and responsible for the majority of cases. Staphylococcal infections are becoming an increasing global concern, partially due to the resistance mechanisms developed by staphylococci to evade the host immune system and antibiotic treatment. In addition to the ability of staphylococci to withstand treatment, surgical intervention in an effort to remove necrotic and infected bone further exacerbates patient impairment. Despite the advances in current health care, osteomyelitis is now a major clinical challenge, with recurrent and persistent infections occurring in approximately 40% of patients. This review aims to provide information about staphylococcus-induced bone infection, covering the clinical presentation and diagnosis of osteomyelitis, pathophysiology and complications of osteomyelitis, and future avenues that are being explored to treat osteomyelitis.

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Section: Nonantibiotic Antimicrobial Therapiesmentioning

confidence: 99%

Staphylococcal Osteomyelitis: Disease Progression, Treatment Challenges, and Future Directions

et al. 2018

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“…Tellurium (Te) is a metalloid element that has antioxidant and pathogen-inhibiting features [270,271]. The use of Te as a low-level doping element in HA promoted antimicrobial activity against Gram-positive ( S. aureus , Bacillus subtilis , Micrococcus sp. )…”

Section: Cation-substituted Hydroxyapatitesmentioning

confidence: 99%

Cationic Substitutions in Hydroxyapatite: Current Status of the Derived Biofunctional Effects and Their In Vitro Interrogation Methods

et al. 2018

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High-performance bioceramics are required for preventing failure and prolonging the life-time of bone grafting scaffolds and osseous implants. The proper identification and development of materials with extended functionalities addressing socio-economic needs and health problems constitute important and critical steps at the heart of clinical research. Recent findings in the realm of ion-substituted hydroxyapatite (HA) could pave the road towards significant developments in biomedicine, with an emphasis on a new generation of orthopaedic and dentistry applications, since such bioceramics are able to mimic the structural, compositional and mechanical properties of the bone mineral phase. In fact, the fascinating ability of the HA crystalline lattice to allow for the substitution of calcium ions with a plethora of cationic species has been widely explored in the recent period, with consequent modifications of its physical and chemical features, as well as its functional mechanical and in vitro and in vivo biological performance. A comprehensive inventory of the progresses achieved so far is both opportune and of paramount importance, in order to not only gather and summarize information, but to also allow fellow researchers to compare with ease and filter the best solutions for the cation substitution of HA-based materials and enable the development of multi-functional biomedical designs. The review surveys preparation and synthesis methods, pinpoints all the explored cation dopants, and discloses the full application range of substituted HA. Special attention is dedicated to the antimicrobial efficiency spectrum and cytotoxic trade-off concentration values for various cell lines, highlighting new prophylactic routes for the prevention of implant failure. Importantly, the current in vitro biological tests (widely employed to unveil the biological performance of HA-based materials), and their ability to mimic the in vivo biological interactions, are also critically assessed. Future perspectives are discussed, and a series of recommendations are underlined.

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“…In recent years, tellurium particles have gained interest as potential antibacterial agents . Zonaro et al .…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of tellurium‐loaded polymeric fiber meshes

Charani

Ciric

Illangakoon

et al. 2018

J of Applied Polymer Sci

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A series of poly(methyl methacrylate) solutions loaded with varying concentrations of tellurium particles are prepared and processed into continuous and smooth microfiber meshes. Scanning electron microscopy and energy-dispersive X-ray spectroscopy are used to study the morphology and surface elemental composition of the composite fibers. Fiber diameters range between 7 and 14 mm with surface nanopores on the fibers ranging between 100 and 200 nm. Energy-dispersive X-ray spectroscopy confirmed successful incorporation of tellurium particles into the fibers. The concentration of tellurium in the composite significantly influenced fiber diameter, pore size, and morphology. The antibacterial activity of the prepared fibers is tested using Escherichia coli K12. The fibers are incubated in bacterial suspensions for 24 h at 37 8C and 150 rpm. Antibacterial activity is assessed through the colony-counting method and is found to be dose dependent. The fibers with 4 wt % tellurium exhibited the most potent antibacterial properties as a 1.16 log reduction was observed.

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Antioxidant and Antimicrobial Activity of Tellurium Dioxide Nanoparticles Sols

Cited by 14 publications

References 35 publications

Staphylococcal Osteomyelitis: Disease Progression, Treatment Challenges, and Future Directions

Staphylococcal Osteomyelitis: Disease Progression, Treatment Challenges, and Future Directions

Cationic Substitutions in Hydroxyapatite: Current Status of the Derived Biofunctional Effects and Their In Vitro Interrogation Methods

Antimicrobial activity of tellurium‐loaded polymeric fiber meshes

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