Results 31 to 40 of about 38,577 (260)

Visualization and manipulation of meta-stable polarization variants in multiferroic materials

AIP Advances, 2013
Here we demonstrate the role of meta-stable polarization variants in out-of-plane polarization switching behavior in epitaxially grown BiFeO3 thin films using angle-resolved piezoresponse force microscopy (AR-PFM). The out-of-plane polarization switching
Moonkyu Park, Kwangsoo No, Seungbum Hong
doaj   +1 more source

Comparing the paths of Hedgehog release in artificial and natural settings

FEBS Letters, EarlyView.
Hh morphogens require solubilization factors to overcome their tight association with the plasma membrane and signal to distant cells, but the precise functions of these factors are controversial. Here, we use published in vivo observations as the most relevant evidence to test their suggested functions and discuss contradictions and gaps between in ...
Janna Puschmann, Kay Grobe
wiley   +1 more source

Sub-picosecond, strain-tunable, polarization-selective optical switching via anisotropic exciton dynamics in quasi-1D ZrSe3

Light: Science & Applications
In cutting-edge optical technologies, polarization is a key for encoding and transmitting vast information, highlighting the importance of selectively switching and modulating polarized light.
Sang Ho Suk, Sanghee Nah, Muhammad Sajjad, Sung Bok Seo, Jianxiang Chen, Sangwan Sim   +5 more
doaj   +1 more source

Effect of uniaxial compressive stress on polarization switching and domain wall formation in tetragonal phase BaTiO3 via machine learning potential

Materials & Design
Ferroelectric materials such as BaTiO3 exhibit spontaneous polarization that can be reoriented by an external electric field, forming the basis of a wide range of memory, actuator, and sensor applications.
Poyen Chen, Teruyasu Mizoguchi
doaj   +1 more source

Interface degradation and field screening mechanism behind bipolar-cycling fatigue in ferroelectric capacitors

APL Materials, 2021
Polarization fatigue, i.e., the loss of polarization of ferroelectric capacitors upon field cycling, has been widely discussed as an interface related effect. However, mechanism(s) behind the development of fatigue have not been fully identified.
M. T. Do, N. Gauquelin, M. D. Nguyen, F. Blom, J. Verbeeck, G. Koster, E. P. Houwman, G. Rijnders   +7 more
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

Fast Switching and High Polarization in Ferroelectric Hf0.5Zr0.5O2 Films

Small Science
HfO2‐based ferroelectric thin films exhibit promising potential for next‐generation nonvolatile memories and neuromorphic devices. Achieving both high polarization and fast switching is required, but optimizing one of them can be at the cost of degrading
Faizan Ali, Tingfeng Song, Florencio Sánchez, Ignasi Fina   +3 more
doaj   +1 more source

Water printing of ferroelectric polarization

Nature Communications, 2018
Controlling ferroelectric polarization is conventionally achieved by applying electric fields, mechanical force or similar. Here reversible switching of the bulk polarization of a BiFeO3 thin film is demonstrated by pattering aqueous solution on to the ...
Yu Tian, Lanying Wei, Qinghua Zhang, Houbing Huang, Yuelin Zhang, Hua Zhou, Fengjie Ma, Lin Gu, Sheng Meng, Long-Qing Chen, Ce-Wen Nan, Jinxing Zhang   +11 more
doaj   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

The VHL tumor suppressor at the crossroad of protein folding, aggregation, and cancer

Molecular Oncology, EarlyView.
Mutations, environmental stress, and chaperone dysfunction can destabilize pVHL, promoting its conversion from the native folded state into amyloid‐like assemblies. This transition may contribute to protein storage, cell dormancy, survival, and drug resistance.
Lara Abad, Silvio Carlo Ermanno Tosatto, Emanuela Leonardi   +2 more
wiley   +1 more source