نتایج جستجو برای: bismuth nanoparticles

تعداد نتایج: 113562  

Journal: :Nanoscale 2013
Yang Luo Mainul Hossain Chaoming Wang Yong Qiao Jincui An Liyuan Ma Ming Su

This paper describes a nanoparticle enhanced X-ray irradiation based strategy that can be used to kill multidrug resistant (MDR) bacteria. In the proof-of-concept experiment using MDR Pseudomonas aeruginosa (P. aeruginosa) as an example, polyclonal antibody modified bismuth nanoparticles are introduced into bacterial culture to specifically target P. aeruginosa. After washing off uncombined bis...

2013
Rene Hernandez-Delgadillo Donaji Velasco-Arias Juan Jose Martinez-Sanmiguel David Diaz Inti Zumeta-Dube Katiushka Arevalo-Niño Claudio Cabral-Romero

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 bism...

Background: Based on the increase in antibiotic-resistant pathogens, it is necessary to have various effective compounds, so as to prevent the proliferation of these pathogens. For this purpose, nano-materials such as bismuth oxide nanoparticles can be used.Objectives: The aim of this study was to produce bismuth oxide nanoparticles by Bacillus lichenifor...

2012
Rene Hernandez-Delgadillo Donaji Velasco-Arias David Diaz Katiushka Arevalo-Niño Marianela Garza-Enriquez Myriam A De la Garza-Ramos Claudio Cabral-Romero

BACKGROUND AND METHODS Despite continuous efforts, the increasing prevalence of resistance among pathogenic bacteria to common antibiotics has become one of the most significant concerns in modern medicine. Nanostructured materials are used in many fields, including biological sciences and medicine. While some bismuth derivatives has been used in medicine to treat vomiting, nausea, diarrhea, an...

Objective(S): The dangerous effects of X-ray have been elucidated by scientific studies in occupational health hygiene.  X-ray protective like an apron, thyroid shield and gloves have been made of lead (Pb) to protect against X-ray. However, such equipment makes a lot of safety and health problems such as toxicity, weight, inflexibility and troubles usage in a physician. To ove...

Journal: :Optics express 2009
Hong-Tao Sun Takashi Hasegawa Minoru Fujii Fumiaki Shimaoka Zhenhua Bai Minoru Mizuhata Shinji Hayashi Shigehito Deki

Significantly enhanced superbroadband near infrared emission has been realized in bismuth/aluminum doped high-silica zeolite derived nanoparticles. The emission intensity can be easily tailored by the introduction of aluminum. The luminescence lifetime can reach up to 695 micros. The results reveal that the existence of charge imbalance environment caused by [AlOV(4/2)](-) units in host materia...

Kamran Vahidizade Mohadese Soleimani Mohsen Shoja,

Introduction: The effects of X-rays on carcinogens have been proven in recent years. Today, lead is used in many devices such as lead covers, thyroid protectors to protect the body against x-rays. But this equipment contains many disadvantages such as, Toxicity, High weight and Lack of flexibility. Today, newer methods, such as semi-solid skin care products (cream, ointment), a...

Journal: :Nanoscale 2014
Eric R Swy Aaron S Schwartz-Duval Dorela D Shuboni Matthew T Latourette Christiane L Mallet Maciej Parys David P Cormode Erik M Shapiro

Reports of molecular and cellular imaging using computed tomography (CT) are rapidly increasing. Many of these reports use gold nanoparticles. Bismuth has similar CT contrast properties to gold while being approximately 1000-fold less expensive. Herein we report the design, fabrication, characterization, and CT and fluorescence imaging properties of a novel, dual modality, fluorescent, polymer ...

رشیدی, مهدی, شیرخانلو, حمید, صفاری, مصطفی, عوادی, محمد رضا,

Introduction: During recent years, carcinogenic effects of X-ray have been proven. Todays, lead is used in many equipment such as  coats, thyroid shield, and gloves for body protection against X-ray. However, these equipments have several disadvantegous including toxicity, heaviness, and inflexibility. Hence, newer methods like protective semisolid products (cream, ointment) for topical applica...

2006
MICHAEL DELLINGER

Three methods were developed for the synthesis of bismuth-ceramic nanocomposites, which are of interest due to possible use as thermoelectric materials. In the first synthetic method, high energy ball milling of bismuth metal with either MgO or SiO 2 was found to produce nanostructured bismuth dispersed on a ceramic material. The morphology of the resulting bismuth depended on its wetting behav...

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