scholarly journals MIL-53(Al) and NH2-MIL-53(Al) modified α-alumina membranes for efficient adsorption of dyes from organic solvents

2019 ◽  
Vol 55 (28) ◽  
pp. 4119-4122 ◽  
Author(s):  
Mohammad Amirilargani ◽  
Renaud B. Merlet ◽  
Pegah Hedayati ◽  
Arian Nijmeijer ◽  
Louis Winnubst ◽  
...  
Keyword(s):  
Organic Solvents ◽  
Organic Dyes ◽  
Alumina Membranes

MIL-53(Al) and NH2-MIL-53(Al) modified α-alumina membranes are investigated for the adsoption of organic dyes from organic solvents.

scholarly journals Amine functionalized 3D porous organic polymer as an effective adsorbent for removing organic dyes and solvents

RSC Advances ◽  
2017 ◽  
Vol 7 (48) ◽  
pp. 30500-30505 ◽  
Author(s):  
Yan He ◽  
Ting Xu ◽  
Jun Hu ◽  
Changjun Peng ◽  
Qiang Yang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Organic Solvents ◽  
Organic Dyes ◽  
Organic Polymer ◽  
Porous Organic Polymer ◽  
Amine Functionalized ◽  
Fast Removal

We report the application of an amine functionalized triptycene-based 3D polymer (TPP-NH2) as a novel adsorbent for the fast removal of organic dyes in aqueous solution and organic solvents.

Electrodeposited Crack-Free CdS Thin Films Using Organic Solvents

2011 ◽  
Vol 194-196 ◽  
pp. 2404-2408
Author(s):  
Hai Nian Chen ◽  
Ai Miao Qin ◽  
Lei Liao ◽  
Ping Tang ◽  
Qi Pang
Keyword(s):  
Thin Films ◽  
Organic Solvents ◽  
Organic Dyes ◽  
Volume Ratio ◽  
Photovoltaic Property ◽  
Phenol Red ◽  
Conductive Glass ◽  
Cds Thin Film ◽  
Photocatalytic Activities ◽  
Cds Thin Films

Crack-free CdS thin films have been electrodeposited on conductive glass substrate by CdCl2 and S powder in dimethylformamide (DMF) and mixed organic solvents with appropriate volume ratio at temperatures lower than 100°C. The effects of solvents on the cracks and the photovoltaic property and catalytic property of CdS thin film are investigated. The results show that the crack-free CdS thin films have higher photoluminescence (PL) emission intensity and better photoelectrichemistry and photocatalytic activities for degradation organic dyes of Fuchsin acid, phenol red and crystal violet than thin films with cracks.

PDMS grafting of mesoporous γ-alumina membranes for nanofiltration of organic solvents

2014 ◽  
Vol 469 ◽  
pp. 471-477 ◽  
Author(s):  
Cheryl R. Tanardi ◽  
Ana F.M. Pinheiro ◽  
Arian Nijmeijer ◽  
Louis Winnubst
Keyword(s):  
Organic Solvents ◽  
Alumina Membranes

scholarly journals Controlled Nanoconfinement of Polyimide Networks in Mesoporous γ-Alumina Membranes for the Molecular Separation of Organic Dyes

2021 ◽  
Author(s):  
Nikos Kyriakou ◽  
Louis Winnubst ◽  
Martin Drobek ◽  
Sissi de Beer ◽  
Arian Nijmeijer ◽  
...  
Keyword(s):  
Organic Dyes ◽  
Alumina Membranes ◽  
Molecular Separation

scholarly journals Using the Paramecium caudatum test object to determine acute toxicity of physiologically active substances

2019 ◽  
Vol 21 (2) ◽  
pp. 110-113
Author(s):  
V A Andreev ◽  
E Yu Andreeva ◽  
L P Erdniyev ◽  
Ya A Stepanov ◽  
A Yu Mikshta ◽  
...  
Keyword(s):  
Organic Solvents ◽  
Test Object ◽  
Organic Dyes ◽  
Physicochemical Analysis ◽  
Laboratory Animals ◽  
Toxic Substances ◽  
Paramecium Caudatum ◽  
Traditional Use ◽  
Advantages And Disadvantages ◽  
Toxicological Studies

The advantage of biotesting in comparison with the physicochemical analysis of the use of Paramecium caudatum for toxicological studies has been shown. Physical and chemical analysis often fails to detect unstable compounds. In addition, these tools are not possible to determine the ultra-low concentration of chemicals. In addition to the traditional use of laboratory animals, representatives of protozoa have recently been used. In connection with this, a test object of the Sim-plest type was chosen and justified. The advantages of using the simplest compared with the use of laboratory animals. The various models used to test toxic substances are described. Their advantages and disadvantages are noted. The main advantages of second-order models using alternative models (various hydrobionts, bacteria, cell cultures, etc.) are described. The relevance of using the culture of cells of the ciliate Paramecium caudatum for toxicological studies has been shown. The methodological aspects of the biotesting of organic solvents using the proposed test object are presented. A unidirectional change in the toxicometric parameters of organic solvents for two types of biological objects: a white mouse and a culture of infusoria Paramecium caudatum were revealed. The possibility of using Paramecium caudatum for toxicological studies has been shown. A correlation was noted between the indicators of the general toxicity of organic dyes and those of white mice.

Compact and efficient gas diffusion electrodes based on nanoporous alumina membranes for microfuel cells and gas sensors

The Analyst ◽  
2020 ◽  
Vol 145 (1) ◽  
pp. 122-131 ◽  
Author(s):  
Wanda V. Fernandez ◽  
Rocío T. Tosello ◽  
José L. Fernández
Keyword(s):  
Response Times ◽  
Hydrogen Oxidation ◽  
Fast Response ◽  
Gas Diffusion ◽  
Limiting Current ◽  
Gas Diffusion Electrodes ◽  
Nanoporous Alumina ◽  
Alumina Membranes ◽  
Current Densities ◽  
Microfuel Cells

Gas diffusion electrodes based on nanoporous alumina membranes electrocatalyze hydrogen oxidation at high diffusion-limiting current densities with fast response times.

UNTERSUCHUNGEN ÜBER DIE EXTRAKTION DES ROTEN KOBER-FARBSTOFFS DURCH ORGANISCHE LÖSUNGSMITTEL ZUR ÖSTROGENBESTIMMUNG IM HARN

1960 ◽  
Vol XXXV (I) ◽  
pp. 34-48 ◽  
Author(s):  
Gerd Ittrich
Keyword(s):  
Menstrual Cycle ◽  
Organic Solvents ◽  
Urine Sample ◽  
Phenol Derivatives ◽  
Organische Lösungsmittel ◽  
Colour Complex

ABSTRACT A series of organic solvents and phenol derivatives have been examined for the extraction of the pink Kober-colour complex. Optimal results could be achieved for fluorimetry by a solution of 2 % (w/v) p-nitrophenol and 1 % (v/v) ethanol in acetylenetetrabromide, when the green mercury line (546 mμ was used as primary light. The sensitivity, stability and specificity have been improved, compared with the previously described reaction. By changing the sequence of purification steps and by reducing the volume of the urine sample (5 ml) the method for the determination of total oestrogens has been simplified. Approximately 10 determinations can be done within 3–4 hours by one person. Recovery experiments and comparative determinations with a previously described method have been carried out. The excretion of total oestrogens in a complete menstrual cycle is determined with the described method.

Quantum Dot Bioconjugates as Energy Donors in Fluorescence Resonance Energy Transfer Assays

2003 ◽  
Vol 773 ◽  
Author(s):  
Aaron R. Clapp ◽  
Igor L. Medintz ◽  
J. Matthew Mauro ◽  
Hedi Mattoussi
Keyword(s):  
Energy Transfer ◽  
Quantum Dot ◽  
Organic Dyes ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Genetically Engineered ◽  
Molar Ratio ◽  
Binding Assays ◽  
Specific Sequence ◽  
Donor Acceptor

AbstractLuminescent CdSe-ZnS core-shell quantum dot (QD) bioconjugates were used as energy donors in fluorescent resonance energy transfer (FRET) binding assays. The QDs were coated with saturating amounts of genetically engineered maltose binding protein (MBP) using a noncovalent immobilization process, and Cy3 organic dyes covalently attached at a specific sequence to MBP were used as energy acceptor molecules. Energy transfer efficiency was measured as a function of the MBP-Cy3/QD molar ratio for two different donor fluorescence emissions (different QD core sizes). Apparent donor-acceptor distances were determined from these FRET studies, and the measured distances are consistent with QD-protein conjugate dimensions previously determined from structural studies.

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