Results 31 to 40 of about 230,695 (241)

Drug-Release Mechanisms Elucidated by Imaging Techniques: Visualizing the Invisible!

open access: yesPharmaceutics, 2022
Imaging techniques such as Raman spectroscopy, electron microscopy, laser scanning confocal microscopy, atomic force microscopy, tomography, magnetic resonance imaging, and terahertz are powerful tools to elucidate drug-release mechanisms from different ...
Susanne Florin-Muschert
doaj   +1 more source

Spatially resolved penetration depth measurements and vortex manipulation in the ferromagnetic superconductor ErNi2B2C [PDF]

open access: yes, 2015
We present a local probe study of the magnetic superconductor, ErNi$_2$B$_2$C, using magnetic force microscopy at sub-Kelvin temperatures. ErNi$_2$B$_2$C is an ideal system to explore the effects of concomitant superconductivity and ferromagnetism.
Bud’ko, Sergey   +9 more
core   +4 more sources

Observation of interacting Josephson vortex chains by magnetic force microscopy

open access: yesPhysical Review Research, 2020
The ability to control Josephson vortices is instrumental for development of superconducting cryoelectronics. However, direct visualization of multivortex states in Josephson junctions is a challenging task.
Sergey Yu. Grebenchuk   +8 more
doaj   +1 more source

Single-Spin Measurement and Decoherence in Magnetic Resonance Force Microscopy [PDF]

open access: yes, 2002
We consider a simple version of a cyclic adiabatic inversion (CAI) technique in magnetic resonance force microscopy (MRFM). We study the problem: What component of the spin is measured in the CAI MRFM?
A.O. Caldeira   +9 more
core   +2 more sources

Phenotypic and genotypic characterization of single circulating tumor cells in the follow‐up of high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Single circulating tumor cells (sCTCs) from high‐grade serous ovarian cancer patients were enriched, imaged, and genomically profiled using WGA and NGS at different time points during treatment. sCTCs revealed enrichment of alterations in Chromosomes 2, 7, and 12 as well as persistent or emerging oncogenic CNAs, supporting sCTC identity.
Carolin Salmon   +9 more
wiley   +1 more source

AFM and MFM techniques for enzyme activity imaging and quantification

open access: yesBiotechnology & Biotechnological Equipment, 2018
In this work, a new approach for enzyme activity monitoring is suggested. It is based on the real-time imaging, by atomic force microscopy (AFM) and magnetic force microscopy (MFM), of the degradation of a nanoparticles-loaded enzyme responsive layer ...
Michelle Arredondo   +3 more
doaj   +1 more source

Remanence of Ni nanowire arrays: Influence of size and labyrinth magnetic structure

open access: yes, 2007
The influence of the macroscopic size of the Ni nanowire array system on their remanence state has been investigated. A simple magnetic phenomenological model has been developed to obtain the remanence as a function of the magnetostatic interactions in ...
Altbir, D   +5 more
core   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

open access: yesMolecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat   +8 more
wiley   +1 more source

qPlus magnetic force microscopy in frequency-modulation mode with millihertz resolution

open access: yesBeilstein Journal of Nanotechnology, 2012
Magnetic force microscopy (MFM) allows one to image the domain structure of ferromagnetic samples by probing the dipole forces between a magnetic probe tip and a magnetic sample. The magnetic domain structure of the sample depends on the alignment of the
Maximilian Schneiderbauer   +2 more
doaj   +1 more source

Magnetic properties of submicron Co islands and their use as artificial pinning centers

open access: yes, 1999
We report on the magnetic properties of elongated submicron magnetic islands and their influence on a superconducting film. The magnetic properties were studied by magnetization hysteresis loop measurements and scanning-force microscopy.
A. Castellanos   +40 more
core   +1 more source

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