Results 71 to 80 of about 19,202 (196)

Electrochemical Reduction of Quinones in Different Media: A Review

International Journal of Electrochemistry, 2011
The electron transfer reactions involving quinones, hydroquinones, and catechols are very important in many areas of chemistry, especially in biological systems. The therapeutic efficiency as well as toxicity of anthracycline anticancer drugs, a class of
Partha Sarathi Guin, Saurabh Das, P. C. Mandal   +2 more
doaj   +1 more source

Tunable amylopectin graft copolymers for flocculating and dewatering iron ore tailings

The Canadian Journal of Chemical Engineering, Volume 104, Issue 9, Page 4597-4612, September 2026.
Abstract Polyacrylamide (PAM), the standard flocculant for mining tailings, often produces turbid supernatants and poorly dewatered sediments, limiting water reuse and tailings densification. We synthesized amylopectin‐graft‐poly[(2‐methacryloyloxy)ethyl]trimethylammonium chloride (AP‐g‐PMETAC) copolymers with systematically varied graft frequency (N = 
Gustavo P. Zago, Reinaldo Giudici, João B. P. Soares   +2 more
wiley   +1 more source

Benzoquinonas, hidroquinonas e sesquiterpenos de Auxemma glazioviana Benzoquinones, hydroquinones and sesquiterpenes of Auxemma glazioviana

Química Nova, 2005
Two new compounds, 5 and 8, and an epimeric mixture 4a/4b were isolated from hardwood of Auxemma glazioviana. Their structures and relative configurations were determined by modern spectroscopic analysis to be rel-10alpha,11alpha-epoxy-11beta-ethoxy ...
Jose Galberto M. Costa, Otília Deusdênia L. Pessoa, Francisco José Q. Monte, Eveline A. Menezes, Telma Leda G. Lemos, Raimundo Braz-Filho   +5 more
doaj   +1 more source

Spatially Configuring RGO Interlayers With PANI/Lignin Nanoparticles Toward High‐Performance Asymmetric Supercapacitors

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
A novel PLNPs@RGO electrode, self‐assembled from polyaniline/lignin conjugated mesoporous nanoparticles (PLNPs) and reduced graphene oxide, exhibits excellent capacitance and high energy density in supercapacitors. The high‐performance flexible solid‐state asymmetric supercapacitor (FSAC) plays a critical role in advancing the innovation of next ...
Mengya Sun, Weisheng Yang, Yifei Qu, Shengbo Ge, Huiyang Bian, Mashallah Rezakazemi, Hongqi Dai   +6 more
wiley   +1 more source

β-lapachone suppresses tumour progression by inhibiting epithelial-to-mesenchymal transition in NQO1-positive breast cancers

Scientific Reports, 2017
NQO1 is a FAD-binding protein that can form homodimers and reduce quinones to hydroquinones, and a growing body of evidence currently suggests that NQO1 is dramatically elevated in solid cancers.
Yang Yang, Xianchun Zhou, Ming Xu, Junjie Piao, Yuan Zhang, Zhenhua Lin, Liyan Chen   +6 more
doaj   +1 more source

Synthesis of polyaniline/TiO2 nanocomposites: effects of acid and aniline concentrations on material properties and photocatalytic performance for sulfamethoxazole degradation

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 9, Page 1906-1923, September 2026.
Abstract BACKGROUND This work investigated the synthesis of TiO2‐P25/polyaniline (PANI) nanocomposites, denoted as PANI– TiO2, via chemical oxidative polymerization under different aniline:H+ molar ratios, and evaluated their performance in heterogeneous photocatalysis (HP).
Vanessa Mendonça Mendes Vargas, Susan Leonora Antunes, Carla Dalmolin, Sérgio Henrique Pezzin   +3 more
wiley   +1 more source

Oxidative and Antioxidant Systems in Ferroptosis of Cancer: Mechanisms, Regulations, and Therapeutic Targeting

MedComm – Oncology, Volume 5, Issue 3, September 2026.
Ferroptosis is governed by the balance between reactive oxygen species (ROS)‐driven lipid peroxidation and a multi‐tiered antioxidant network. ROS sources include mitochondrial electron transport chain, voltage‐dependent anion channels, NADPH oxidases, and endoplasmic reticulum‐resident oxidoreductases, while antioxidant defenses span the primary GSH ...
Deepak K, Pritam Kumar Roy, Maniklal Shee, Budhaditya Mukherjee, Aoife Ward Gahlawat, Mahitosh Mandal   +5 more
wiley   +1 more source

Exploiting the Reverse Function of Ene‐Reductase Enzymes in the Continuous Flow Synthesis of Naphthols From Tetralones

Advanced Synthesis &Catalysis, Volume 368, Issue 16, 18 August 2026.
The development and optimization of a continuous flow method for the use of ERED enzymes in the reverse mode is presented to convert tetralones into naphthols using air as the terminal oxidant. Both solution‐phase and the immobilized enzyme were explored along with different reactor configurations leading to product yields of up to 83% in short ...
Ruairí Bannon, Philip Jamieson, Kathryn Yeow, Megan Smyth, Scott Wharry, Thomas S. Moody, Marcus Baumann   +6 more
wiley   +1 more source

New‐Era Polymer Thermoelectrics: Material Innovations, Doping Frontiers, Decoupling Strategies, and Unconventional Applications

Advanced Materials, Volume 38, Issue 43, 3 August 2026.
The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley   +1 more source

Supramolecular Assembly of Stepped‐Persistent ROS Nanogenerator for Sustained Tumor Immunotherapy

Advanced Science, Volume 13, Issue 45, 13 August 2026.
ROS catalytic systems often fail to achieve both effective tumor elimination and persistent immune activation due to their monotonous ROS production profiles. A stepped‐persistent ROS nanogenerator was developed by supramolecularly assembling multiple ROS generation modules within a nanofiber structure to simultaneously extend ROS generation duration ...
Zhenqiang Wang, Ming Qin, Wenjing Lai, Shiwen Chen, Fengling Wang, Dandan Xie, Maohua Chen, Changpeng Hu, Kui Wang, Rong Zhang, Guobing Li   +10 more
wiley   +1 more source