Results 1 to 10 of about 37,952 (208)

Protocol for microwave-assisted synthesis of unsymmetrical azo dyes [PDF]

STAR Protocols, 2022
Summary: Aromatic azo dyes bear immense commercial significance because of their extensive usage in the textile, paint, and food industries. With growing environmental concerns, developing alternative greener approaches for the synthesis of azo dyes is ...
Ankit Thakuri, Mainak Banerjee, Amrita Chatterjee   +2 more
doaj   +2 more sources

Improvement of analytical method for three azo dyes in processed milk and cheese using HPLC-PDA [PDF]

Food Chemistry: X, 2023
This study aims to develop and validate a method for simultaneously measuring three azo dyes (azorubine, brilliant black BN, lithol rubine BK) not designated in Korea.
Se-Jeong Lee, Xionggao Han, Xiao Men, Geon Oh, Sun-Il Choi, Ok-Hwan Lee   +5 more
doaj   +2 more sources

Azo-hydrazone tautomerism of aryl azo pyridone dyes [PDF]

Hemijska Industrija, 2013
In the last three or four decades disperse dyes derived from pyridones (in particular azo pyridone dyes) have gained in importance, and are widely used in various fields.
Mirković Jelena M., Ušćumlić Gordana S., Marinković Aleksandar D., Mijin Dušan Ž.   +3 more
doaj   +4 more sources

Biodegradation of azo dyes by Aspergillus flavus and its bioremediation potential using seed germination efficiency [PDF]

BMC Microbiology
The worldwide textile industry extensively uses azo dyes, which pose serious health and environmental risks. Effective cleanup is necessary but challenging.
Amira M. Ghanaim, Omima M. El Mahdy, Heba I. Mohamed   +2 more
doaj   +2 more sources

New Cation Sensors Based on Eugenol-Derived Azo Dyes [PDF]

Molecules
Eugenol-based azo dyes illustrate how bio-sourced compounds like eugenol can be transformed through synthetic processes into functional and colorful compounds.
José R. A. Coelho, Ana Rita F. Pacheco, Diogo C. Domingues, Ana Rita O. Rodrigues, Akani A. Temitope, Paulo J. G. Coutinho, Maria José G. Fernandes, Elisabete M. S. Castanheira, M. Sameiro T. Gonçalves   +8 more
doaj   +2 more sources

Response of sorghum to effect of two azo dye bacteria [PDF]

Caspian Journal of Environmental Sciences, 2021
A huge amount of azo-dye wastewater is generated annually by the textile industry. At present, the improper disposal of azo dyes to water bodies causes considerable concern as it can disrupt the ecosystem and, because of their toxicity and ...
Alaa Jasim Mohammed Al-Shemmary, Maysoon Mahdi Salih Al-Taee   +1 more
doaj   +1 more source

Phylogenetically diverse bacteria isolated from tattoo inks, an azo dye-rich environment, decolorize a wide range of azo dyes

Annals of Microbiology, 2021
Purpose There has been an interest in the microbial azo dye degradation as an optional method for the treatment of azo dye-containing wastes. Tattoo ink is an extremely unique azo dye-rich environment, which have never been explored in terms of ...
Seong Won Nho, Xuewen Cui, Ohgew Kweon, Jinshan Jin, Huizhong Chen, Mi Sun Moon, Seong-Jae Kim, Carl E. Cerniglia   +7 more
doaj   +1 more source

Enzymatic Degradation of Azo Bonds and Other Functional Groups on Commercial Silk Dyes by Streptomyces coelicoflavus CS-29

Environment and Natural Resources Journal, 2022
Azo dyes are used for silk textile manufacture, where their decolorization and detoxication are necessary after initial dying in the craft industry. The bio-decolorization efficiency of Streptomyces coelicoflavus CS-29 toward commercial azo blue and red ...
Wai Phyo Mon, Phongphan Jantaharn, Sophon Boonlue, Sirirath McCloskey, Somdej Kanokmedhakul, Wiyada Mongkolthanaruk   +5 more
doaj   +1 more source

Removal of Azo Dyes from Aqueous Effluent Using Bio-Based Activated Carbons: Toxicity Aspects and Environmental Impact

Separations, 2023
Rapid growth in various industrial fields has introduced a series of new environmental risks. The textile industry is one of the major industries that is influenced by rapid advancements in technological sectors.
Ahmed Elsayid Ali, Zaira Zaman Chowdhury, Ramprosad Devnath, Md. Mostak Ahmed, Md. Mahfujur Rahman, Khalisanni Khalid, Yasmin Abdul Wahab, Irfan Anjum Badruddin, Sarfaraz Kamangar, Mohamed Hussien, Khalid Husain Pallan, Ajita Mitra   +11 more
doaj   +1 more source

Physico-analytical studies on some heterocyclic azo dyes and their metal complexes with some transition metals

BMC Chemistry, 2022
In this investigation, the azo dyes; 2-(3′-phenyl-5′-pyrazolyl azo) schaffer acid (la) and 2-(3′-phenyl-5′-pyrazolyl azo) resorcinol (Ib); were prepared through diazotizing 3-phenyl-5-aminopyrazole (PAP) and coupling the resulting diazonium salt with ...
Fathy A. El-Seify, Hassan A. Azab, Fikrea S. Degedy, Khalid A. Abdel-Mageed, Farid I. El-Dossoki   +4 more
doaj   +1 more source