Results 51 to 60 of about 410,646 (334)

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Energy dissipation in multifrequency atomic force microscopy

open access: yesBeilstein Journal of Nanotechnology, 2014
The instantaneous displacement, velocity and acceleration of a cantilever tip impacting onto a graphite surface are reconstructed. The total dissipated energy and the dissipated energy per cycle of each excited flexural mode during the tip interaction is
Valentina Pukhova   +2 more
doaj   +1 more source

Atomic force microscopy: A nanobiotechnology for cellular research

open access: yesNano TransMed, 2022
: Nanobiotechnology such as atomic force microscopy (AFM) has a great application in various regimes of cell biology, offering an excellent avenue to study cellular nanotopography, nanomechanics, and nanointeraction. AFM nanotopography can provide a high
Guangzhao Guan, Yan He, Li Mei
doaj   +1 more source

The CantiClever: a dedicated probe for magnetic force microscopy [PDF]

open access: yes, 2002
We present a new cantilever for magnetic-force microscopy (MFM), the CantiClever, which is not derived from atomic-force microscopy (AFM) probes but optimized for MFM.
Abelmann, Leon   +5 more
core   +4 more sources

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

open access: yesMolecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed   +10 more
wiley   +1 more source

Repulsive bimodal atomic force microscopy on polymers

open access: yesBeilstein Journal of Nanotechnology, 2012
Bimodal atomic force microscopy can provide high-resolution images of polymers. In the bimodal operation mode, two eigenmodes of the cantilever are driven simultaneously.
Alexander M. Gigler   +5 more
doaj   +1 more source

Class IIa HDACs forced degradation allows resensitization of oxaliplatin‐resistant FBXW7‐mutated colorectal cancer

open access: yesMolecular Oncology, EarlyView.
HDAC4 is degraded by the E3 ligase FBXW7. In colorectal cancer, FBXW7 mutations prevent HDAC4 degradation, leading to oxaliplatin resistance. Forced degradation of HDAC4 using a PROTAC compound restores drug sensitivity by resetting the super‐enhancer landscape, reprogramming the epigenetic state of FBXW7‐mutated cells to resemble oxaliplatin ...
Vanessa Tolotto   +13 more
wiley   +1 more source

Magnetic-Dielectric Cantilevers for Atomic Force Microscopy

open access: yesNanomaterials
Atomic force microscopy (AFM) is a technique that relies on detecting forces at the nanonewton scale. It involves using a cantilever with a tiny tip at one end. This tip interacts with the short- and long-range forces of material surfaces.
Gala Sanchez-Seguame   +7 more
doaj   +1 more source

Progress in the Correlative Atomic Force Microscopy and Optical Microscopy

open access: yesSensors, 2017
Atomic force microscopy (AFM) has evolved from the originally morphological imaging technique to a powerful and multifunctional technique for manipulating and detecting the interactions between molecules at nanometer resolution.
Lulu Zhou   +3 more
doaj   +1 more source

Practical applications of atomic force microscopy in biomedicine

open access: yesSTEMedicine, 2020
The last thirty years of progress of atomic force microscopy (AFM) applied to living matter is reviewed with a focus on potential uses in drug discovery or screening of patient samples.
Nicola Galvanetto
doaj   +1 more source

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