Results 41 to 50 of about 1,113,516 (233)

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Epigenetic reprogramming of lineage switching in cancer

FEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı, Burcu Akman, Ezgi Bağırsakçı, Nese Atabey, Serap Erkek‐Ozhan   +4 more
wiley   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Novel Anodic Catalyst Support for Direct Methanol Fuel Cell: Characterizations and Single-Cell Performances

Nanoscale Research Letters, 2018
This study introduces a novel titanium dioxide carbon nanofiber (TiO2-CNF) support for anodic catalyst in direct methanol fuel cell. The catalytic synthesis process involves several methods, namely the sol-gel, electrospinning, and deposition methods ...
N. Abdullah, S. K. Kamarudin, L. K. Shyuan   +2 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Fuel processor - PEM fuel cell systems for energy generation [PDF]

, 2010
In the last few years, increasing attention has been paid to PEM fuel cells, as promising device for decentralized energy production, both in stationary and automotive field, thanks to high compactness, low weight (high power-to-weight ratio), high ...
Menna, Laura
core   +1 more source

Effect of β-resin of binderless coke on mechanical properties of high-density carbon blocks at high molding pressure

Scientific Reports, 2022
High-density carbon blocks have excellent mechanical, thermal, and electrical properties. In particular, these blocks are applied in various fields while maintaining excellent physical properties even in harsh environments. In this study, binderless coke
Seungjoo Park, Seon Ho Lee, Song Mi Lee, Doo-Hwan Jung   +3 more
doaj   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

FEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward, Álvaro Ruiz‐Tabas, Patricia Altea‐Manzano   +2 more
wiley   +1 more source

Impact of Substrate Type and Membrane Scaling on Catalyst Transfer Efficiency in PEM Water Electrolyzers via the Decal Method

International Journal of Chemical Engineering
Catalyst-coated membranes (CCMs) were fabricated using the decal transfer method to enhance catalyst transfer efficiency, performance, and stability in polymer electrolyte membrane water electrolyzers (PEMWEs).
Md Ahsanul Haque, Edy Herianto Majlan, Ammar Gamal Bazarah, Juliana Jumadi, Wei Shi Ng, Aina Aqila A. Alim, Noor Azira Abdul Razak, Maryam Taufiq Musa, Lim Bee Huah, Teuku Husaini   +9 more
doaj   +1 more source

Electrochemical Impedance Spectroscopy for Investigation of Different Losses in 4-cells Short Stack with Integrated Humidifier and Water Separator [PDF]

Hydrogen, Fuel Cell & Energy Storage, 2016
Electrochemical impedance spectroscopy (EIS) is a suitable and powerful diagnostic testing method for fuel cells (FCs) since it is non-destructive and provides useful information about FC performance and its components. In this study, for the first time,
Ebrahim Alizadeh, Majid Khorshidian, Seyed Majid Rahgoshay, Seyed Hossein Masrori Saadat, Mazaher Rahimi-Esbo   +4 more
doaj   +1 more source