Results 91 to 100 of about 52,827 (291)

Design and Structural Characterization of Novel Azo-Theophylline as Acid-Base Indicator

Ibn Al-Haitham Journal for Pure and Applied Sciences
     Novel heterocyclic acid-base indicators 8-[3-(phenol)azo] theophylline (PAT) and 8[1-(6-sulfonic acid naphthalene) azo] theophylline (SAT) were synthesized through the reaction between m-amino phenol and 1-amino naphthalene -6-sulfonic acid with ...
Mohnned hamady Manulla, Alyaa Khidir Abbas   +1 more
doaj   +1 more source

Indirect determination of dopamine and paracetamol by electrochemical impedance spectroscopy using azo coupling reaction with oxidized 2,4-dinitrophenylhydrazine (DNPH): Application in commercial tablets

Journal of Science: Advanced Materials and Devices, 2020
A new method for the determination of dopamine (DA) and paracetamol (PCT), based on the azo “coupling reaction with oxidized 2,4-dinitrophenylhydrazine (DNPH), has been established.
W. Boumya, M. Achak, M. Bakasse, M.A. El Mhammedi   +3 more
doaj   +1 more source

Isomerization Mechanism in Hydrazone-Based Rotary Switches: Lateral Shift, Rotation, or Tautomerization? [PDF]

, 2011
Two intramolecularly hydrogen-bonded arylhydrazone (aryl = phenyl or naphthyl) molecular switches have been synthesized, and their full and reversible switching between the E and Z configurations have been demonstrated.
Aprahamian, Ivan, Benítez, Diego, Elhabiri, Mourad, Goddard, William A., III, Lafranchi, Don Antoine, Landge, Shainaz M., Tkatchouk, Ekaterina   +6 more
core   +1 more source

Computer-Assisted Design of Environmentally Friendly and Light-Stable Fluorescent Dyes for Textile Applications. [PDF]

, 2019
Five potentially environmentally friendly and light-stable hemicyanine dyes were designed based on integrated consideration of photo, environmental, and computational chemistry as well as textile applications.
Chen, Guoqiang, Sun, Gang, Tang, Songsong   +2 more
core   +1 more source

Solution‐Processed Nickel Oxide as Efficient Hole Transport Layers in Inverted Perovskite Solar Cells

Advanced Science, EarlyView.
This review summarizes recent advances in four mainstream solution‐based techniques for synthesizing NiOx hole‐transport layers for high‐performance perovskite photovoltaic cells, and highlights the key challenges and future prospects for achieving high efficiency, long‐term stability, and low‐cost perovskite photovoltaic technologies toward ...
Zheng Wu, Zeliang Qiu, Yuxin Tao, Yuyang Qiu, Yuwei Duan, Jianxing Xia, Feng Li, Qiang Peng   +7 more
wiley   +1 more source

New AZO Compounds Derivatives Based on 4- chloro-2-((5-formyl-2-hydroxy-3-methoxyphenyl) diazenyl)benzenesulfonamide: Preparation, diagnostic, Spectroscopic, Antioxidant and Antimicrobial efficiency [PDF]

Journal of Bioscience and Applied Research
In this study, two series of compounds have been prepared based on azo compound 4-chloro-2-((5-formyl-2-hydroxy-3-methoxyphenyl)iazinyl) benzene sulfonamide (A1) which prepared by diazotization of 2-amino-4-chlorobenzen sulfonamide and 4-hydroxy -3 ...
Dania Saleh, Bushra Al-Salami
doaj   +1 more source

Photo-responsive graphene and carbon nanotubes to control and tackle biological systems [PDF]

, 2018
Photo-responsive multifunctional nanomaterials are receiving considerable attention for biological applications because of their unique properties. The functionalization of the surface of carbon nanotubes (CNTs) and graphene, among other carbon based ...
Cardano, Francesca, Frasconi, Marco, Giordani, Silvia   +2 more
core   +1 more source

Spatially Separated Redox Centers in One‐Dimensional Sp2‐Carbon Covalent Organic Frameworks Enable Synergistic Photocatalytic Palladium Recovery and Bisphenol A Mineralization

Advanced Science, EarlyView.
A one‐dimensional sp2‐carbon covalent organic framework with spatially segregated redox centers integrates a dual photosensitizing system and a cationic interface for synergistic photocatalysis. The material achieves exceptional palladium recovery (1749 mg g−1) and bisphenol A mineralization (0.1710 min−1) without sacrificial agents, demonstrating ...
Yi‐Ru Chen, Jing‐Yi Li, Yao Xiao, Dan Zhong, Lu Zhang, Yu‐Ting Xie, Xiu Wang, Yibao Li, Wei‐Rong Cui, Jian‐Ding Qiu   +9 more
wiley   +1 more source

CHROMATOGRAPHIC CHARACTERIZATION OF BEMACID ROT DYE COMPOUNDS FOLLOWING CERIOPORUS SQUAMOSUS BIOREMEDIATION [PDF]

Annals of the University of Oradea: Fascicle of Textiles, Leatherwork, 2019
Fungi mediated bioremediation of industrial wastewaters containing azo-dyes has been gaining increased attention in the last years. One of the downsizes of bioremediation of azo-dyes is the possibility of resulting degradation aromatic amines, following ...
IORDACHE Ovidiu, MOGA Ioana Corina, MITRAN Elena-Cornelia, CIUTARU Dana-Georgeta, SANDULACHE Irina-Mariana, SECAREANU Lucia-Oana, PETRESCU Gabriel, PERDUM Elena   +7 more
doaj  

Networking chemical robots for reaction multitasking [PDF]

, 2018
The development of the internet of things has led to an explosion in the number of networked devices capable of control and computing. However, whilst common place in remote sensing, these approaches have not impacted chemistry due to difficulty in ...
Alon Henson, Daniel Salley, Dario Caramelli, Gerardo Aragon Camarasa, Graham Keenan, Leroy Cronin, Salah Sharabi   +6 more
core   +2 more sources