Results 31 to 40 of about 9,469 (161)

Fine structural tuning of diphenylaniline-based dyes for designing semiconductors relevant to dye-sensitized solar cells

Scientific Reports
Motivated by recent study on synthesized N, N-diphenylaniline (DPA)-based dyes [DOI: https://doi.org/10.1016/j.solener.2022.01.062 ] for use in dye-sensitized solar cells (DSSCs), we theoretically design several dyes and explore their potential for ...
Akbar Omidvar, Fatemeh Fazeli, Tahereh Ghaed-Sharaf, Reza Keshavarzi   +3 more
doaj   +1 more source

Catalytic degradation of diverse azo dyes using Eucommia ulmoides bark-mediated gold nanocatalyst

Environmental Chemistry and Ecotoxicology
In the absence of any hazardous substances, colloidal gold nanoparticles (AuNPs) were synthesized through the reduction and stabilization of corresponding metal cations by a simple Eucommia ulmoides bark extract (EUBE). Employing these AuNPs as catalysts,
Hong Wan, Sania Habib, Huihong Liu, Sakil Mahmud   +3 more
doaj   +1 more source

Efficient degradation and detoxification of structurally different dyes and mixed dyes by LAC-4 laccase purified from white-rot fungi Ganoderma lucidum

Ecotoxicology and Environmental Safety
The purpose of this study is to evaluate the decolorization ability and detoxification effect of LAC-4 laccase on various types of single and mixed dyes, and lay a good foundation for better application of laccase in the efficient treatment of dye ...
Wei Deng, Mingrui Ge, Ziyi Wang, Chenwen Weng, Yang Yang   +4 more
doaj   +1 more source

Immobilized CeO2 for adsorption of azo dye

Journal of Experimental Nanoscience, 2019
Azo dyes are not efficiently removed in water treatment. So the development of excellent absorbent is significant important for environmental protection.
Shulin Kong, Wenwen Zhang, Shaomin Gao, Donghui Chen   +3 more
doaj   +1 more source

Electrochemical reduction of azo dyes mimicking their biotransformation to more toxic products

Journal of Veterinary Research, 2019
Some azo dyes, including Sudans I–IV and Para Red, are genotoxic and may be biotransformed to cancerogenic aromatic amines. They are banned as food and feed additives, but their presence has been detected in food.
Pietruk Konrad, Piątkowska Marta, Olejnik Małgorzata   +2 more
doaj   +1 more source

Azo Dyes and Heinz Bodies [PDF]

Occupational and Environmental Medicine, 1957
No general hypothesis has been advanced to explain the underlying cause of the appearance of Heinz bodies in erythrocytes. The initial observation of Riess (1882) on a case of potassium chlorate poisoning was followed by that of Heinz (1890) who administered phenylhydrazine to animals.
openaire   +2 more sources

PREPARATION, CHARACTERIZATION, APPLICATIONS AND ANALYTICAL STUDIES OF SOME NEW AZO DYES DERIVED FROM SULFANILAMIDE [PDF]

Bulletin of Pharmaceutical Sciences. Assiut University
Background: Azo compounds are a class of organic molecules characterized by the presence of a double bond between two nitrogen atoms and contain one or more azo functional groups. Aim of study: This study involves the preparation of two new azo dyes from
Alaa AL-Muhsin, A. A. Ali
doaj   +1 more source

Application of Eugenol-Derived Azo Dyes on Natural Textile Fabrics

Chemistry Proceedings
Eugenol, a natural product abundant in clove oil, represents a promising precursor for the synthesis of azo dyes, proving potential for textile coloration. The eugenol azo dyes were synthesized and characterized, showing stable absorption profiles across
Filipa Daniela Pedroso Mendes, Ana Margarida Fernandes, Carla Joana Silva, Maria Sameiro Torres Gonçalves   +3 more
doaj   +1 more source

Monosulfonated Azo Dyes: A Crystallographic Study of the Molecular Structures of the Free Acid, Anionic and Dianionic Forms

Crystals, 2020
Crystallographic studies of monosulfonated azo dyes have concentrated on the salt forms that contain the azo anion. Here we present a study that compares the structures of these anions with protonated free acid forms and with doubly deprotonated dianion ...
Alan R. Kennedy, Linda K. Conway, Jennifer B. A. Kirkhouse, Karen M. McCarney, Olivier Puissegur, Edward Staunton, Simon J. Teat, John E. Warren   +7 more
doaj   +1 more source

Some Peculiarities of Creation of Stable Polyimide - Azo Chromophore System

Eurasian Chemico-Technological Journal, 2001
Azo dyes: methyl orange, methyl red, congo red have been suggested as doping agents for formulation of stable soluble azo dye - polyimide (PI) system according to guest-host scheme.
S. K. Kudaikulova, G. I. Boiko, I. I. Shalabaeva, B. A. Zhubanov, M. J.M. Abadie   +4 more
doaj   +1 more source