Results 211 to 220 of about 6,238 (235)

An Embodied Paper‐Based Microfluidic Al‐Air Battery for Enduring Untethered Insect‐Scale Robots

open access: yesAdvanced Science, EarlyView.
This work presents a centimeter‐scale microfluidic aluminum–air battery (MFAAB) with dual‐surface anode and F−‐mediated byproduct decomposition. The design enables a high capacity of 2697.05 mAh/g Al and delivers tens of milliwatts to power LEDs, motors, and a toy car.
Yun Yang   +5 more
wiley   +1 more source

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

open access: yesAdvanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Ultrafast Dynamics of Spin Current and Electron Temperature in Spintronic Terahertz Emitters

open access: yesAdvanced Science, EarlyView.
This work quantifies optical‐pump‐induced THz transmission variations to reveal electron and lattice temperature dynamics and presents time‐resolved THz spectral maps for sub‐picosecond analysis. A 63 ± 8 fs time lag between THz emission and laser excitation is identified, serving as an intrinsic parameter limiting the upper frequency of spintronic THz
Yifan Wang   +10 more
wiley   +1 more source

Single‐Atom Intercalation‐Driven Topological Ferroelectric Metal for High‐Performance Hydrogen Evolution Reaction

open access: yesAdvanced Science, EarlyView.
Single‐atom Cu intercalation enables porous AB3 monolayers to integrate ferroelectricity, metallicity, topology, and hydrogen evolution catalysis in one platform. Switchable FE polarization modulates work function and hydrogen adsorption thermodynamics, providing an electrically controllable route to activate basal‐plane HER activity in topological ...
Rongxuan Lu   +4 more
wiley   +1 more source

Emerging regulatory mechanisms of noncoding RNAs in topologically associating domains

open access: yesTrends in Genetics, 2023
Topologically associating domains (TADs) are integral to spatial genome organization, instructing gene expression, and cell fate. Recently, several advances have uncovered roles for noncoding RNAs (ncRNAs) in the regulation of the form and function of ...
Melissa J Fullwood, Vinay Tergaonkar
exaly   +5 more sources

Form and function of topologically associating genomic domains in budding yeast [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2017
Significance In metazoans, topological domains are regions in the genome that more frequently associate with themselves than with neighboring regions. These domains are important for regulating transcription and replication.
Umut Eser   +2 more
exaly   +4 more sources

Chromatin-Driven Behavior of Topologically Associating Domains

open access: yesJournal of Molecular Biology, 2015
Metazoan genomes are highly organized inside the cell nucleus. Topologically associating domains (TADs) represent the building blocks of genome organization, but their linear modularity does not explain alone their spatial organization. Indeed, the chromatin type adorning a TAD can shape its structure and drives its nuclear positioning and its function.
Filippo Ciabrelli, Giacomo Cavalli
exaly   +4 more sources

Topologically associating domains are stable units of replication-timing regulation [PDF]

open access: yesNature, 2014
Eukaryotic chromosomes replicate in a temporal order known as the replication-timing program. In mammals, replication timing is cell-type-specific with at least half the genome switching replication timing during development, primarily in units of 400-800 kilobases ('replication domains'), whose positions are preserved in different cell types ...
Benjamin D Pope   +2 more
exaly   +3 more sources

Structure, function and evolution of topologically associating domains (TADs) atHOX loci

open access: yesFEBS Letters, 2015
Hox genes encode transcription factors necessary for patterning the major developing anterior to posterior embryonic axis. In addition, during vertebrate evolution, various subsets of this gene family were co-opted along with the emergence of novel body ...
Denis Duboule
exaly   +2 more sources

Topologically-associating domains: gene warehouses adapted to serve transcriptional regulation [PDF]

open access: yesTranscription, 2016
Structural-functional domains have long been hypothesized to occur in eukaryotic chromosomes, but their existence still remains controversial. Here, we discuss the current state of studies of 3D genome folding and the relation of this folding to the functional organization of the genome.
Sergey V Razin   +2 more
exaly   +3 more sources

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