Results 21 to 30 of about 10,587 (256)

Scanning a DNA molecule for bound proteins using hybrid magnetic and optical tweezers. [PDF]

open access: yesPLoS ONE, 2013
The functional state of the genome is determined by its interactions with proteins that bind, modify, and move along the DNA. To determine the positions and binding strength of proteins localized on DNA we have developed a combined magnetic and optical ...
Marijn T J van Loenhout   +7 more
doaj   +1 more source

Magnetic tweezers with magnetic flux density feedback control [PDF]

open access: yesReview of Scientific Instruments, 2020
In this work, we present a single-pole magnetic tweezers (MT) device designed for integration with substrate deformation tracking microscopy and/or traction force microscopy experiments intended to explore extracellular matrix rheology and human epidermal keratinocyte mechanobiology.
Waddah I. Moghram   +3 more
openaire   +2 more sources

rafatrojo/Magnetic-Tweezers-Software: v1.0

open access: yes, 2023
Magnetic Tweezers software and circuit ...
rafatrojo
core   +1 more source

Microrheology with optical tweezers: data analysis [PDF]

open access: yes, 2012
We present a data analysis procedure that provides the solution to a long-standing issue in microrheology studies, i.e. the evaluation of the fluids' linear viscoelastic properties from the analysis of a finite set of experimental data, describing (for ...
R M L Evans   +13 more
core   +1 more source

Safety Implications of High-Field MRI: Actuation of Endogenous Magnetic Iron Oxides in the Human Body [PDF]

open access: yes, 2009
Background: Magnetic Resonance Imaging scanners have become ubiquitous in hospitals and high-field systems (greater than 3 Tesla) are becoming increasingly common.
Garcia-Prieto, A   +11 more
core   +1 more source

Optical Trapping and Manipulation of Superparamagnetic Beads Using Annular-Shaped Beams

open access: yesMethods and Protocols, 2018
We propose an optical tweezers setup based on an annular-shaped laser beam that is efficient to trap 2.8 μ m-diameter superparamagnetic particles.
Leandro Oliveira   +2 more
doaj   +1 more source

Two energy barriers and a transient intermediate state determine the unfolding and folding dynamics of cold shock protein

open access: yesCommunications Chemistry, 2021
Force-dependent transitions can provide insights into the free-energy landscape of proteins. Here, the authors observe the folding and unfolding dynamics of the model protein Csp using magnetic tweezers, from which a free-energy landscape with two energy
Haiyan Hong   +6 more
doaj   +1 more source

Bioconjugation Strategies for Connecting Proteins to DNA-Linkers for Single-Molecule Force-Based Experiments

open access: yesNanomaterials, 2021
The mechanical properties of proteins can be studied with single molecule force spectroscopy (SMFS) using optical tweezers, atomic force microscopy and magnetic tweezers.
Lyan M. van der Sleen, Katarzyna M. Tych
doaj   +1 more source

Fabrication of nanotweezers and their remote actuation by magnetic fields

open access: yesScientific Reports, 2017
A new kind of nanodevice that acts like tweezers through remote actuation by an external magnetic field is designed. Such device is meant to mechanically grab micrometric objects.
Cécile Iss   +12 more
doaj   +1 more source

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