Results 1 to 10 of about 20,918,698 (229)

A Review of N-(1,3-Dimethylbutyl)-N′-phenyl-p-Phenylenediamine (6PPD) and Its Derivative 6PPD-Quinone in the Environment [PDF]

Toxics
As an antioxidant and antiozonant, N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) is predominantly used in the rubber industry to prevent degradation.
Yi Li, Jingjing Zeng, Yongjin Liang, Yanlong Zhao, Shujun Zhang, Zhongyan Chen, Jiawen Zhang, Xingze Shen, Jiabin Wang, Ying Zhang, Yuxin Sun   +10 more
doaj   +3 more sources

Presence of N, N′-Substituted p-Phenylenediamine-Derived Quinones in Human Urine [PDF]

Toxics
Human exposure to various N,N′-substituted p-phenylenediamine-derived quinones (PPDQs) has been of increasing concern. Recent studies have examined N-phenyl-N′-(1,3-dimethylbutyl)-p-phenylenediamine-derived quinone (6PPDQ) in human urine to evaluate ...
Juxiu Huang, Hangbiao Jin, Yingying Zhu, Ruyue Guo, Lisha Zhou, Xiaoyu Wu   +5 more
doaj   +2 more sources

Hair dye dermatitis and p-phenylenediamine contact sensitivity: A preliminary report [PDF]

Indian Dermatology Online Journal, 2015
Background: The contact allergic reactions from p-phenylenediamine (PPD) in hair dyes vary from mild contact dermatitis to severe life- threatening events (angioedema, bronchospasm, asthma, renal impairment).
Mrinal Gupta, Vikram K Mahajan, Karaninder S Mehta, Pushpinder S Chauhan   +3 more
doaj   +2 more sources

Network Toxicology and Molecular Docking to Elucidate the Mechanisms of Intestinal Toxicity Induced by P-Phenylenediamine Antioxidants and Their Quinone Derivatives [PDF]

Toxics
P-phenylenediamines (PPDs) and their quinone derivatives (PPDQs), emerging pollutants widespread in urban environments, exhibit biotoxicological risks.
Hui Zou, Yumei Tan, Xiyi Ren, Zhu Li, Yongxiang Liu   +4 more
doaj   +2 more sources

Influence of interaction between organic cation and inorganic unit in bi-based hybrid perovskites for photoelectronic properties

Heliyon, 2022
With the increase of the passion on lead-free perovskites, more and more endeavor focused on halobismuthates. Here, we have introduced the p-iodoaniline and p-phenylenediamine into Bi-based hybrid materials, and two photoactive iodobismuthate named p ...
Liuyuan Han, Qian Wu, Longfei Lei, Jinghang Chen, Ni Xue   +4 more
doaj   +1 more source

Peroxidase activity of erythrocytes hemoglobin under action of low-frequency vibration

Біологічні студії, 2021
Background. Hemoglobin is a hemoprotein which in the presence of oxidative equivalents, such as H2O2, can act as peroxidase with a very high oxidative potential.
O. I. Dotsenko, G. V. Taradina, А. М. Mischenko   +2 more
doaj   +1 more source

A new type of neutral-ionic interface in mixed-stack organic charge-tranfer crystals: Temperature induced ionicity change in ClMePD-DMeDCNQI [PDF]

, 2001
Raman and polarized infrared spectra of the mixed stack charge transfer crystal 2-chloro-5methyl-p-phenylendiamine- -2,5-dimethyl-dicyanoquinonediimine (ClMePD-DMeDCNQI) are reported as a function of temperature. A detailed spectral interpretation allows
Masino, Matteo, Girlando, Alberto, Farina, Luca, Brillante, Aldo   +3 more
core   +2 more sources

Fabrication of Orange Fluorescent Boron-Doped Graphene Quantum Dots for Al³⁺ Ion Detection

Molecules, 2022
Aluminum is a kind of metal that we often encounter. It can also be absorbed by the human body invisibly and will affect our bodies to a certain extent, e.g., by causing symptoms associated with Alzheimer’s disease.
Weitao Li, Luoman Zhang, Ningjia Jiang, Yongqian Chen, Jie Gao, Jihang Zhang, Baoshuo Yang, Jialin Liu   +7 more
doaj   +1 more source

Bimetallic MOFs-Derived Hollow Carbon Spheres Assembled by Sheets for Sodium-Ion Batteries

Nanomaterials, 2022
Metal-organic frameworks (MOFs) have attracted extensive attention as precursors for the preparation of carbon-based materials due to their highly controllable composition, structure, and pore size distribution.
Hui Yang, Ang Li, Chunli Zhou, Xuewei Liu, Xiaohong Chen, Haiyan Liu, Tao Liu, Huaihe Song   +7 more
doaj   +1 more source

Electrochemical behaviour and voltammetric determination of p-phenylenediamine at carbon paste electrode

Journal of Electrochemical Science and Engineering, 2017
An electrochemical method was developed for voltammetric determination of p-phenylenediamine using a carbon paste electrode (CPE). The electrode exhibited the highest electrocatalytic activity toward oxidation and reduction of p-phenylenediamine in the ...
Abdelaziz Ait Sidi Mou, Aicha Ouarzane, Mama El Rhazi   +2 more
doaj   +1 more source