Synthesis of novel fluorescent bimetal nanoclusters for aqueous mercury detection based on aggregation-induced quenching

2021 ◽  
Author(s):  
Fangfang Yu ◽  
Peng Luo ◽  
Yun Chen ◽  
Hui Jiang ◽  
Xuemei Wang
Keyword(s):  
Reducing Agent ◽  
Good Stability ◽  
Fluorescent Properties ◽  
Mercury Detection ◽  
Aqueous Mercury

In this contribution, new bimetal nanoclusters (DAMP-AuAg BNCs) with 4,6-diamino-2-mercaptopyrimidine (DAMP) as reducing agent and stabilizer ligand were exploited. The nanoclusters displayed excellent fluorescent properties, super small size, good stability...

Microstructure and Properties of Ferrite/Organic Nanocomposite Prepared with Microemulsion Method

2012 ◽  
Vol 722 ◽  
pp. 31-38 ◽  
Author(s):  
Xu Zheng ◽  
Shu Hui Yu ◽  
Rong Sun ◽  
Wen Hu Yang ◽  
Ru Xu Du
Keyword(s):  
Magnetic Nanoparticles ◽  
Saturation Magnetization ◽  
Organic Compounds ◽  
Nanocomposite Film ◽  
Volume Ratio ◽  
Tween 80 ◽  
Reducing Agent ◽  
Good Stability ◽  
Molar Ratio ◽  
Microemulsion Method

A magnetite composite composed of the organic compounds and Fe3O4nanoparticles was prepared with microemulsion method. The Tween 80 and ammonia were used as surfactant and reducing agent, respectively, in synthesizing the Fe3O4nanoparticles. The experimental results showed that the composite possessed good stability while the volume ratio of Tween 80 to butanol was 0.4 and the molar ratio of NH4OH to Fe3+was 14.6. The saturation magnetization of the composite depends on the molar ratio of NH4OH to Fe3+. The mechanism of this stable Fe3O4paste was realized by the Fe3O4nanocomposite film using TEM. The microstructures of the film show that the magnetic nanoparticles in the composite are surrounded by Tween 80, which separates the magnetic nanoparticles and leads to good stability.

scholarly journals Liquid kit for preparation of 188rhenium-etidronate

2005 ◽  
Vol 48 (spe2) ◽  
pp. 137-140 ◽  
Author(s):  
Barbara Marczewski ◽  
Carla Roberta Dias ◽  
Vanessa Moraes ◽  
João Alberto Osso Junior
Keyword(s):  
Incubation Time ◽  
Reducing Agent ◽  
Good Stability

The aim of this study was the preparation of a liquid kit for radiolabeling of 188Re-HEDP (hydroxyethylidene diphosphonate). 188Re was obtained from alumina based 188W/188Re generators. This paper reports the efficacy of a cold kit stored for more than two weeks, determined by the dependence of the radiolabeling yields of 188Re-HEDP on the incubation time, reducing agent concentration, the effects of concentration of ligand, the pH of the reaction and the temperature. The cold kits showed a good stability when carrie-free rhenium-188 was added in the reaction mixture.

Carbon Monoxide Related Reductions

INEOS OPEN ◽  
2020 ◽  
Vol 3 ◽  
Author(s):  
O. I. Afanasyev ◽  
◽  
D. Chusov ◽  
Keyword(s):  
Organic Chemistry ◽  
Carbon Monoxide ◽  
Reducing Agent ◽  
Current Development ◽  
Efficient Route ◽  
Development Prospects

Carbon monoxide is a unique reducing agent that is only gaining popularity in organic chemistry. This review highlights the main approaches to the application of CO as a reducing agent, summarizes and critically analyzes the key trends in this field, and describes the current development prospects. Potentially the most selective and efficient route for the realization of these processes is demonstrated.

OESTRADIOL, A REDUCING AGENT FOR ANDROGENS IN LIVERTISSUE

1967 ◽  
Vol 56 (1_Suppl) ◽  
pp. S62
Author(s):  
M. Wenzel ◽  
K. Pollow
Keyword(s):  
Reducing Agent

Photochemical and Electrochemical Reduction of Carbon Dioxide Catalyzed by a Polyoxometalate-Organic Photosensitizer Complex

2018 ◽  
Author(s):  
Chandan Dey ◽  
Ronny Neumann
Keyword(s):  
Carbon Dioxide ◽  
Cyclic Voltammetry ◽  
Formic Acid ◽  
Electrochemical Reduction ◽  
Mass Spectroscopy ◽  
Photochemical Reactions ◽  
Reducing Agent ◽  
Covalent Attachment ◽  
Hybrid Complex ◽  
Open Face

<p>A manganese substituted Anderson type polyoxometalate, [MnMo<sub>6</sub>O<sub>24</sub>]<sup>9-</sup>, tethered with an anthracene photosensitizer was prepared and used as catalyst for CO<sub>2</sub> reduction. The polyoxometalate-photosensitizer hybrid complex, obtained by covalent attachment of the sensitizer to only one face of the planar polyoxometalate, was characterized by NMR, IR and mass spectroscopy. Cyclic voltammetry measurements show a catalytic response for the reduction of carbon dioxide, thereby suggesting catalysis at the manganese site on the open face of the polyoxometalate. Controlled potentiometric electrolysis showed the reduction of CO<sub>2</sub> to CO with a TOF of ~15 sec<sup>-1</sup>. Further photochemical reactions showed that the polyoxometalate-anthracene hybrid complex was active for the reduction of CO<sub>2</sub> to yield formic acid and/or CO in varying amounts dependent on the reducing agent used. Control experiments showed that the attachment of the photosensitizer to [MnMo<sub>6</sub>O<sub>24</sub>]<sup>9-</sup> is necessary for photocatalysis.</p><div><br></div>

Rheological Behaviour of Diutan Gum and Its Effects as a Drag Reducing Agent

2019 ◽  
Author(s):  
Walber Ronconi dos Santos ◽  
Edson Soares ◽  
Renato Siqueira
Keyword(s):  
Rheological Behaviour ◽  
Reducing Agent
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