نتایج جستجو برای: antimony compounds

تعداد نتایج: 230084  

2003
ANNA E. CHURCH A. E. Church

In a previous paper of this series (1) we have shown that while the dilution curve for cod liver oil with antimony trichloride is not a linear function, a comparison can be made between the colorimetric assay of vitamin A in certain fish oils, with a chloroform solution of antimony trichloride, and the biological assay upon the same oils, when certain precautions are taken. In a second paper (2...

2015
Rubens Monte-Neto Marie-Claude N. Laffitte Philippe Leprohon Priscila Reis Frédéric Frézard Marc Ouellette

BACKGROUND Antimony resistance complicates the treatment of infections caused by the parasite Leishmania. METHODOLOGY/PRINCIPAL FINDINGS Using next generation sequencing, we sequenced the genome of four independent Leishmania guyanensis antimony-resistant (SbR) mutants and found different chromosomal alterations including aneuploidy, intrachromosomal gene amplification and gene deletion. A se...

2011
Arun Kumar Haldar Pradip Sen Syamal Roy

In the recent past the standard treatment of kala-azar involved the use of pentavalent antimonials Sb(V). Because of progressive rise in treatment failure to Sb(V) was limited its use in the treatment program in the Indian subcontinent. Until now the mechanism of action of Sb(V) is not very clear. Recent studies indicated that both parasite and hosts contribute to the antimony efflux mechanism....

Journal: :Environment international 2003
J Ebert M Bahadir

Thermal treatment of plastics flame retarded with brominated compounds often lead to the formation of PBDD/F, especially if polybrominated diphenyl ethers are used. By the presence of antimony(III) oxide, water and some other metals, the amounts of PBDD/F increase. Even during the production and recycling processes of plastics, PBDD/F can be found in considerable amounts. By the use of flame re...

2017
Débora Cristina de Oliveira Nunes Luiz Borges Bispo-da-Silva Danielle Reis Napolitano Mônica Soares Costa Márcia Moura Nunes Rocha Figueira Renata Santos Rodrigues Veridiana de Melo Rodrigues Kelly Aparecida Geraldo Yoneyama

Leishmaniasis is a group of diseases caused by protozoa of Leishmania genus. The currently available treatments for this disease are expensive, present high toxicity and are associated to difficulties of healing and parasite resistance. Therefore, the development of strategies for leishmaniasis treatment is indispensable and includes reposition of existing drugs, as well as drug combination the...

2009
Cesar Miranda-Verastegui GianFranco Tulliano Theresa W. Gyorkos Wessmark Calderon Elham Rahme Brian Ward Maria Cruz Alejandro Llanos-Cuentas Greg Matlashewski

BACKGROUND Current therapies for cutaneous leishmaniasis are limited by poor efficacy, long-term course of treatment, and the development of resistance. We evaluated if pentavalent antimony (an anti-parasitic drug) combined with imiquimod (an immunomodulator) was more effective than pentavalent antimony alone in patients who had not previously been treated. METHODS A randomized double-blind c...

Journal: :Nanotechnology 2011
Fei Wang Jung-Hun Seo Dylan Bayerl Jian Shi Hongyi Mi Zhenqiang Ma Deyin Zhao Yichen Shuai Weidong Zhou Xudong Wang

An aqueous solution-based doping strategy was developed for controlled doping impurity atoms into a ZnO nanowire (NW) lattice. Through this approach, antimony-doped ZnO NWs were successfully synthesized in an aqueous solution containing zinc nitrate and hexamethylenetetramine with antimony acetate as the dopant source. By introducing glycolate ions into the solution, a soluble antimony precurso...

Journal: :Mutagenesis 1998
N Schaumlöffel T Gebel

Data on the mechanism of antimony genotoxicity is scarce. Arsenic and antimony are proposed to share some toxicological features. Thus comparative and combined experiments with As(III) and Sb(III) were performed to gain a deeper knowledge of the mechanism of antimony genotoxicity. Trivalent arsenic proved to be five times more cytotoxic and one order of magnitude more potent in induction of mic...

Journal: :Scientific Reports 2021

Abstract Silver(I) ethylxanthate [AgS 2 COEt] ( 1 ) and antimony(III) [Sb(S COEt) 3 ] have been synthesised, characterised used as precursors for the preparation of AgSbS powders thin films using a solvent-free melt method spin coating technique, respectively. The as-synthesized were characterized by powder X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM) energy d...

Journal: :Kondensirovannye sredy i mežfaznye granicy 2022

In recent years, there has been a significant increase in interest ternary and quaternary compounds with the participation of rare earth elements (REE), as well copper, antimony, bismuth, which have wider range physical properties. Due to their valuable properties, they become promising targets research for modern materials science. Therefore, purpose this work is study properties synthetic ana...

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