Results 81 to 90 of about 11,572 (205)

Oxidation Products of S‐Adenosyl Methionine Probed by Infrared Multiple Photon Dissociation Spectroscopy

ChemPhysChem, Volume 27, Issue 12, 26 June 2026.
HO•‐induced oxidation is structurally resolved in S‐adenosyl methionine (SAM). Infrared multiple photon dissociation (IRMPD) spectroscopy and density functional theory (DFT) calculations reveal clear spectroscopic signatures of adenine C8 oxidation. S‐adenosyl methionine (SAM) is a key biomolecule in cellular processes, acting as a primary methyl donor,
Jean‐Xavier Bardaud, Yining Jiang, Carine Clavaguera, Chantal Houée‐Levin, Giel Berden, Jos Oomens, Debora Scuderi   +6 more
wiley   +1 more source

Electrolyte Engineering in Aqueous Zinc‐Ion Batteries: From Solvation Chemistry to Interface Stabilization

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
This review summarizes recent progress in electrolyte engineering for aqueous zinc‐ion batteries. It focuses on solvation chemistry regulation and interfacial stabilization. Strategies including solvent regulation, electrolyte salt, functional additives, and composite electrolytes are discussed. These approaches help suppress side reactions and improve
Zhenyu Li, Xiao Huang, Dongyu Liu, Bowei Wang, Hao Li, Jing Zhang, Hongzhen Lin, Jian Wang, Lei Zhou   +8 more
wiley   +1 more source

Comprehensive characterization and understanding of micro-fuel cells operating at high methanol concentrations

Beilstein Journal of Nanotechnology, 2015
We report on the analysis of the performance of each electrode of an air-breathing passive micro-direct methanol fuel cell (µDMFC) during polarization, stabilization and discharge, with CH3OH (2–20 M). A reference electrode with a microcapillary was used
Aldo S. Gago, Juan-Pablo Esquivel, Neus Sabaté, Joaquín Santander, Nicolas Alonso-Vante   +4 more
doaj   +1 more source

Electrodeposited MnCo and MnNiCo Spinels for Anion Exchange Membrane Direct Ammonia Fuel Cell Cathodes: An Alternative to Platinum

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
Electrodeposited MnCoOX and MnNiCoOX spinels on Ni foam are evaluated as binder‐free, platinum group metal‐free cathodes in direct ammonia fuel cells. MnCoOX matches and surpasses Pt in oxygen reduction performance while tolerating ammonia crossover, whereas Ni incorporation dilutes the active Co–Mn sites and degrades performance.
Mehmet Turan Görüryilmaz, Karuppasamy Dharmaraj, Iris Dorbandt, Erno Kemppainen, Thorsten Schultz, Norbert Koch, Xuyun Guo, Valeria Nicolosi, Rutger Schlatmann, Michelle P. Browne, Sonya Calnan   +10 more
wiley   +1 more source

The Effect of a Reduction in the Catalyst Loading on a Mini Passive Direct Methanol Fuel Cell

Energies
Mini passive direct methanol fuel cells (mpDMFCs) appear to be a promising alternative for powering portable devices, since they use a liquid fuel, have a fast refuelling time, have a high efficiency and have a low environmental impact.
C. S. Moreira, A. M. F. R. Pinto, V. B. Oliveira   +2 more
doaj   +1 more source

Multi‐Responsive Dendrimer‐Hyaluronic Acid Hydrogel With Lubricating and Immunoregulatory Functions for Synergistic Osteoarthritis Therapy

Advanced Functional Materials, Volume 36, Issue 44, 1 June 2026.
A hydrogel with dynamic cross‐links was formed by cross‐linking hyaluronic acid with curcumin‐preloaded, phenylboronic acid‐modified poly(amidoamine) dendrimers. This hydrogel exhibited excellent injectability and self‐healing ability, enabling controlled Cur release in response to low pH, high reactive oxygen species (ROS) generation, or mechanical ...
Junjie Liu, Mengsi Zhan, Haoyu Huang, Jianhong Wang, Cheng Ni, Xiaojun Zhou, Hannah Küttner, Cong Song, Xiangyang Shi, Andrij Pich   +9 more
wiley   +1 more source

Recent advances and future prospects in methanol fuel cell technologies

Discover Electrochemistry
Purpose To review the current advances, persistent challenges, and future prospects of methanol fuel cell technologies, thereby supporting the transition toward low-carbon energy systems.
Alexander I. Ikeuba, Christopher U. Sonde, Chigoziri N. Njoku, Nelson Essiet, Godwin A. Udourioh, Brian E. Usibe, Ifeanyi C. Obika, Okama E. Obono, Eno E. Ebenso   +8 more
doaj   +1 more source

Effect of Methanol Crossover in a Liquid-FeedPolymer-Electrolyte Direct Methanol Fuel Cell

, 1996
The performance of a liquid-feed direct methanol fuel cell employing a proton-exchange membrane electrolyte with Pt-Ru/C as anode and Pt/C as cathode is reported. The fuel cell can deliver a power density of ca. 0.2 $W/cm^2$ at 95°C, sufficient to suggest that the stack construction is well worthwhile.Methanol crossover across the polymer electrolyte ...
Ravikumar, MK, Shukla, AK
openaire   +1 more source

Efficient Electrocatalytic Conversion of CO2 to Pure Formic Acid Solutions via Strain‐Engineered Bismuth Nanosheets

Advanced Science, Volume 13, Issue 36, 29 June 2026.
Tensile‐strained bismuth nanosheets (TS‐BiNs) achieve a formate Faradaic efficiency of 92% at −1000 mA cm−2 and enable stable production of pure formic acid (HCOOH) in a solid‐state electrolyte reactor. Theoretical calculations reveal that the introduced strain lowers the energy barrier for *OCHO intermediate formation, fundamentally enhancing the ...
Shiqi Li, Yuefeng Zhang, Panzhe Qiao, Cuo Wu, Xinya Tian, Yufeng Xu, Yun Zhang, Peng Wang, Tingting Li, Muhammad Afaq, Xinlin Luo, Tang Wang, Chunxiao Liu, Zi‐You Yu, Chuan Xia, Min‐Rui Gao, Zhen‐Yu Wu   +16 more
wiley   +1 more source

A Novel Ultra‐Performance Liquid Chromatography‐Electrospray Ionisation‐Tandem Mass Spectrometry Method for Quantification of Imeglimin in Human Plasma: Application to a Bioequivalence Study

Analytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT The pharmaceutical market has recently witnessed the advent of a novel tetrahydrotriazene molecule belonging to the new pharmacological class “Glimins”, named Imeglimin (IMG). It has been approved in Japan as a safe and highly effective oral diabetic drug for type II diabetic patients.
Mina Wadie, Kamal A. Badr, Ahmed A. Hosny, Liliya Logoyda, Omnia M. El Sebai, Mamdouh R. Rezk   +5 more
wiley   +1 more source