Results 31 to 40 of about 36,099 (265)

Sequences for real-time magnetic particle imaging

Current Directions in Biomedical Engineering, 2015
Magnetic Particle Imaging (MPI) is a new imaging modality with the potential to be a new medical tool for angiographic diagnostics. It is capable of visualizing the spatial distribution of super-paramagnetic nanoparticles in high temporal and spatial ...
Weber Matthias, Bente Klaas, von Gladiss Anselm, Graeser Matthias, Buzug Thorsten M.   +4 more
doaj   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

The isoflavone genistein selectively stimulates major satellite repeat transcription in mouse heterochromatin

Epigenetics & Chromatin
Mouse heterochromatin is characterized by A/T-rich, 234 bp DNA repeat arrays, called major satellite repeats (MSR). We investigated MSR expression in response to a variety of stress conditions by using small molecule compounds.
Thomas Fuhrmann, Nicholas Shukeir, Reagan W. Ching, Galina Erikson, Yuan Dou, Zoe Sawitzki, Megumi Onishi-Seebacher, Carmen Galan, Thomas Jenuwein   +8 more
doaj   +1 more source

MPI-enabled Shape Optimization of Panels Subjected to Air Blast Loading [PDF]

International Journal for Simulation and Multidisciplinary Design Optimization, 2008
The problem of finding the optimal shape of an aluminum plate to mitigate air blast loading is considered. The goal is to minimize the dynamic displacement of the plate relative to the test fixture, while monitoring plastic strain values, mass, and ...
Argod V., Belegundu A. D., Aziz A., Agrawala V., Jain R., Rajan D.   +5 more
doaj   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Recent Advances in Ferrite‐Based Materials for Biomedical Applications: A Comprehensive Review

Advanced Materials, EarlyView.
Ferrite nanoplatforms are presented as tunable biomedical materials in which synthesis control, cation engineering, defect/morphology regulation, and surface functionalization govern structure–property–bioactivity relationships. These design strategies enable multifunctional applications including MRI contrast, magnetic hyperthermia, targeted drug ...
Pramod D. Mhase, Varsha C. Pujari, Akash V. Fulari, Sunil M. Patange, Sean Li, Danyang Wang, Sagar E. Shirsath   +6 more
wiley   +1 more source

MEASUREMENT OF LIVING STANDARDS DEPRIVATION IN LAHORE DISTRICT, PAKISTAN (A Periodical Comparison Approach) [PDF]

Pakistan Journal of Applied Economics, 2021
The study assesses living standards deprivation by determining each indicator of MPI’s absolute and relative contribution in overall poverty for the periods 2011 and 2014 using MICS data and the Alkire-Foster method for four districts, namely Lahore ...
Muhammad AFZAL, Ahsan NAZIR
doaj  

Programmable Functional Silicification of DNA Origami Nanostructures

Advanced Materials, EarlyView.
This work introduces additional functionality into silica‐coated DNA origami nanostructures using non‐standard silica precursors. A fluorescent precursor enables enhanced intracellular tracking, while a disulfide‐containing reagent yields redox‐responsive, degradable silica coatings.
Anna V. Baptist, Lasse Guericke, Philipp Mauker, Oliver Thorn‐Seshold, Amelie Heuer‐Jungemann   +4 more
wiley   +1 more source

Collective self-caging of active filaments in virtual confinement

Nature Communications
Motility coupled to responsive behavior is essential for many microorganisms to seek and establish appropriate habitats. One of the simplest possible responses, reversing the direction of motion, is believed to enable filamentous cyanobacteria to form ...
Maximilian Kurjahn, Leila Abbaspour, Franziska Papenfuß, Philip Bittihn, Ramin Golestanian, Benoît Mahault, Stefan Karpitschka   +6 more
doaj   +1 more source

Effect of key parameters on synthesis of superparamagnetic nanoparticles (SPIONs)

Current Directions in Biomedical Engineering, 2016
There are various methods to synthesize superparamagnetic nanoparticles (SPIONs) useful for MPI (magnetic particle imaging) and in therapy (Hypothermia) such as co-precipitation, hydrothermal reactions etc.
Malhotra Ankit, Spieß Felix, Stegelmeier Corinna, Debbeler Christina, Lüdtke-Buzug Kerstin   +4 more
doaj   +1 more source