Results 301 to 310 of about 752,311 (360)

Genetic Impacts on the Structure and Mechanics of Cellulose Made by Bacteria

open access: yesAdvanced Science, EarlyView.
A genetic mutation in a protease of a cellulose‐overproducing evolved bacterium significantly affects the proteome, structure, and mechanical properties of bio‐fabricated cellulose pellicles. By overexpressing synthase proteins that build the cellulose‐forming biological machinery of the cell, the evolved bacterium generates dense, stiff, and strong ...
Julie M. Laurent   +8 more
wiley   +1 more source

An Amygdala‐hippocampus Circuit for Endocannabinoid Modulation of Anxiety Avoidance

open access: yesAdvanced Science, EarlyView.
This study employs three synapse‐specific endocannabinoids (eCB) probes to monitor dynamic eCB release, activate CB1Rs and knockdown 2‐AG biosynthesis enzymes in glutamatergic anterior basolateral amygdala ‐ ventral hippocampus (aBLA–vHPC) circuit. At aBLA–vHPC circuits, activation of CB1Rs reduce anxiety avoidance, and knockdown of eCB biosynthesis ...
Bao Xue   +9 more
wiley   +1 more source

A Subcircuit in the Suprachiasmatic Nucleus Generates Wakefulness

open access: yesAdvanced Science, EarlyView.
This study identifies a sub‐circuit within the circadian pacemaker suprachiasmatic nucleus (SCN) that promotes arousal. This sub‐circuit is labeled by the clock output molecule mWAKE, which suppresses its excitability in a time‐dependent manner. mWAKE‐expressing cells in the SCN (SCNmWAKE cells) project to the subparaventricular zone (SPZ) to mediate ...
Qiang Liu   +6 more
wiley   +1 more source

Ultra‐Low Hysteresis Under Large Deformation Enabled by Fast Chains Relaxation in Highly Competitive Dynamic Hydrogen Bond Networks

open access: yesAdvanced Science, EarlyView.
This study demonstrates that incorporating deep eutectic solvent (DES) components tunes the relaxation dynamics of strong hydrogen bonds between polymer segments, rendering them mechanically “invisible” during service conditions (low hysteresis: <3%).
Shuaijun Guo   +10 more
wiley   +1 more source

Acidosis Forces Fatty Acid Uptake and Metabolism in Cancer Cells Regardless of Genotype

open access: yesAdvanced Science, EarlyView.
This study demonstrates that biological acidosis, commonly observed in tumors and ischemic conditions, actively promotes the protonation of fatty acids, thereby facilitating the uptake of their neutral forms. Consequently, the preference for lipid metabolism in acid‐exposed cells does not arise from genetic reprogramming that prioritizes lipids as the ...
Sébastien Ibanez   +20 more
wiley   +1 more source

Flame‐Retardant Ionogel Enabled by Lignin Molecular Networks for Fire Rescue

open access: yesAdvanced Science, EarlyView.
Wearable sensors for harsh, high‐temperature, fire‐prone environments face challenges in heat resistance and stability. This study introduces a flame‐retardant, waterproof glycol lignin ionogel (GLI) with a robust 3D network, exceptional tensile strength, strong adhesion, biocompatibility, eco‐safety, and dual temperature‐motion sensing, even after ...
Zewei Ye   +10 more
wiley   +1 more source

Deterministic Fabrication of Plasmonic Nanostructures on Optical Nanofibers via Blurred Electron Beam Deposition

open access: yesAdvanced Science, EarlyView.
A nanofabrication method enabling the direct growth of plasmonic nanostructures are presented on suspended tapered optical nanofibers via Blurred Electron Beam Induced Deposition (BEBID). By defocusing the beam to reduce mechanical stress, BEBID achieves sub‐20 nm precision and structural control, enabling directional scattering and light–matter ...
Antonio Balena   +9 more
wiley   +1 more source

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