Smoke sensor on the base of Bi2O3 sesquioxide

Adamian, Zaven N.; Abovian, H.V.; Aroutiounian, V. M.

doi:10.1016/s0925-4005(96)90035-0

Cited by 58 publications

(22 citation statements)

References 2 publications

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“…It is widely used in applications, such as microelectronics, and sensor and optical technology. 13,14 Nanoparticles (NPs) have large surface areas, and therefore, they have increased interactions with biological targets. We recently demonstrated the antibacterial effectiveness of zero-valent bismuth NPs at inhibiting the growth of Streptococcus mutans; 15 however; at the present time the antimycotic potential of bismuth nanostructured derivatives are not known.…”

Section: Introductionmentioning

confidence: 99%

Bismuth oxide aqueous colloidal nanoparticles inhibit Candida albicans growth and biofilm formation

Hernandez-Delgadillo¹,

Velasco‐Arias²,

Martinez-Sanmiguel³

et al. 2013

IJN

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Multiresistance among microorganisms to common antimicrobials has become one of the most significant concerns in modern medicine. Nanomaterials are a new alternative to successfully treat the multiresistant microorganisms. Nanostructured materials are used in many fields, including biological sciences and medicine. Recently, it was demonstrated that the bactericidal activity of zero-valent bismuth colloidal nanoparticles inhibited the growth of Streptococcus mutans; however the antimycotic potential of bismuth nanostructured derivatives has not yet been studied. The main objective of this investigation was to analyze the fungicidal activity of bismuth oxide nanoparticles against Candida albicans, and their antibiofilm capabilities. Our results showed that aqueous colloidal bismuth oxide nanoparticles displayed antimicrobial activity against C. albicans growth (reducing colony size by 85%) and a complete inhibition of biofilm formation. These results are better than those obtained with chlorhexidine, nystatin, and terbinafine, the most effective oral antiseptic and commercial antifungal agents. In this work, we also compared the antimycotic activities of bulk bismuth oxide and bismuth nitrate, the precursor metallic salt. These results suggest that bismuth oxide colloidal nanoparticles could be a very interesting candidate as a fungicidal agent to be incorporated into an oral antiseptic. Additionally, we determined the minimum inhibitory concentration for the synthesized aqueous colloidal Bi 2 O 3 nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Bismuth oxide aqueous colloidal nanoparticles inhibit Candida albicans growth and biofilm formation

Hernandez-Delgadillo¹,

Velasco‐Arias²,

Martinez-Sanmiguel³

et al. 2013

IJN

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“…[4][5][6][7][8][9] Furthermore, Bi 2 O 3 has also proved to be a good photocatalyst for water splitting and pollutant decomposing under visible light irradiation. Recently, Bi 2 O 3 nanocrystals with various morphologies have been achieved.…”

Section: Introductionmentioning

confidence: 99%

Bi₂O₃ Hierarchical Nanostructures: Controllable Synthesis, Growth Mechanism, and their Application in Photocatalysis

Zhou

Wang

et al. 2009

Chemistry A European J

409

194

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By introducing VO(3)(-) into the reaction system, uniform hierarchical nanostructures of Bi(2)O(3) have been successfully synthesized by a template-free aqueous method at 60-80 degrees C for 6 h. The as-prepared hierarchitectures are composed of 2D nanosheets, which intercross with each other. Based on the electron microscope observations, the growth of such hierarchitectures has been proposed as an Ostwald ripening process followed by self-assembly. The nucleation, growth, and self-assembly of Bi(2)O(3) nanosheets could be readily tuned, which brought different morphologies and microstructures to the final products. Pore-size distribution analysis revealed that both mesopores and macropores existed in the product. UV-vis spectroscopy was employed to estimate the band gap energies of the hierarchical nanostructures. The photocatalytic activities of as-prepared Bi(2)O(3) hierarchitectures were 6-10 times higher than that of the commercial sample, which was evaluated by the degradation of RhB dye under visible light irradiation (lambda>420 nm).

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“…These nanoparticles are candidates for fuel cell electrolytes, as well as for sensor applications (Adamian et al 1996;Skorodumova et al 2005). Its chemical synthesis is complex and extreme conditions are necessary, in which ionic bismuth is reduced by sodium borohydride, and then it is oxidized at very high temperature.…”

Section: Introductionmentioning

confidence: 99%

Metallic oxide nanoparticles: state of the art in biogenic syntheses and their mechanisms

Durán

Seabra

2012

Appl Microbiol Biotechnol

106

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Smoke sensor on the base of Bi2O3 sesquioxide

Cited by 58 publications

References 2 publications

Bismuth oxide aqueous colloidal nanoparticles inhibit Candida albicans growth and biofilm formation

Bismuth oxide aqueous colloidal nanoparticles inhibit Candida albicans growth and biofilm formation

Bi₂O₃ Hierarchical Nanostructures: Controllable Synthesis, Growth Mechanism, and their Application in Photocatalysis

Metallic oxide nanoparticles: state of the art in biogenic syntheses and their mechanisms

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Smoke sensor on the base of Bi2O3 sesquioxide

Cited by 58 publications

References 2 publications

Bismuth oxide aqueous colloidal nanoparticles inhibit Candida albicans growth and biofilm formation

Bismuth oxide aqueous colloidal nanoparticles inhibit Candida albicans growth and biofilm formation

Bi2O3 Hierarchical Nanostructures: Controllable Synthesis, Growth Mechanism, and their Application in Photocatalysis

Metallic oxide nanoparticles: state of the art in biogenic syntheses and their mechanisms

Contact Info

Product

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Bi₂O₃ Hierarchical Nanostructures: Controllable Synthesis, Growth Mechanism, and their Application in Photocatalysis