A recent study of non-extensive phase transitions in nuclei and nuclear clusters needs a probability model compatible with the appropriate Hamiltonian. For magnetic molecules a representation of the evolution by a Markov process achieves the required probability model that is used to study the probability density function (PDF) of the order parameter, i.e., the magnetization. The existence of o...

Metal clusters, composed of a few atoms at the core, exhibit unique properties and have potential applications. Although atomically precise clusters of noble metals have been synthesized, analogous systems of reactive metals, such as iron, have not been realized in solution due to high reactivity. Here we report the synthesis and characterization of novel iron clusters in the hemoglobin matrix ...

A Bayesian kernel-based clustering method is presented. The associated model arises as an embedding of the Potts density for label membership probabilities into an extended Bayesian model for joint data and label membership probabilities. The method may be seen as a principled extension of the so-called super-paramagnetic clustering. The model depends on three parameters: the temperature, the k...

Liposomes are one of the most promising biomaterial carriers to deliver DNA,(1) proteins, drugs and medicine in human bodies. However, artificially formed liposomes have to satisfy some crucial functions such as: (i) to efficiently carry drugs to targeted systems, (ii) to be biologically stable until they are removed from human body, (iii) to be biodegradable, and (iv) to be sufficiently small ...

Two kinds of microporous activated nanostructured carbons were studied by electron paramagnetic resonance (EPR) spectroscopy. They have different specific surface areas: 1500 m2/g (AC I) and 2500 m2/g (AC II). It was observed that the EPR spectra shapes and their temperature evolution between 300 K and 4 K were depending on the types of carbon sample. Roomtemperature spectra show dissimilar lin...

The storage capacity of hard disk drives has increased tremendously over the last decade. However, the rate of increase has reached a bottle-neck as the technology approaches a theoretical limit known as the super-paramagnetic limit. Heat-Assisted Magnetic Recording (HAMR) has emerged as one of the important technologies to overcome this limit. The process of heating while writing brings about ...

Introduction: Magnetic particle imaging (MPI) is a method to determine the spatial distribution of super-paramagnetic iron oxide particles (SPIOs) at potentially high sensitivity, high spatial and high temporal resolution [1,2,3]. For magnetic field generation and particle signal reception, electromagnetic coils are used. In their paper [1], Gleich and Weizenecker proposed a tube-like scanner s...

Stem cell therapy has emerged as a potential therapeutic option for cell death-related heart diseases. Preclinical and a number of early phase human studies suggested that cell therapy may augment perfusion and increase myocardial contractility. The rapid translation into clinical trials has left many issues unresolved, and emphasizes the need for specific techniques to visualize the mechanisms...

BACKGROUND AND PURPOSE Inflammation is a recognized risk factor for the vulnerable atherosclerotic plaque. The study explores the relationship between the degree of Magnetic Resonance (MR)-defined inflammation using Ultra Small Super-Paramagnetic Iron Oxide (USPIO) particles and the severity of luminal stenosis in asymptomatic carotid plaques. METHODS Seventy-one patients with an asymptomatic...

Nano size lithium ferrite was prepared through aerosol route and characterized using TEM, XRD, magnetic measurements and Mössbauer spectroscopy. The particle size of as obtained samples were found to be ~10 nm through TEM, that increases upto ~80 nm on annealing at 1200 C. The unit cell parameter ‘a’ calculated using XRD, confirms the formation of α-LiFe5O8. Room temperature Mössbauer spectra o...