An excellent molecule-based cryogenic magnetic refrigerant, gadolinium acetate tetrahydrate, is here used to decorate selected portions of silicon substrate. By quantitative magnetic force microscopy for a variable applied magnetic field near liquid-helium temperature, the molecules are demonstrated to hold their magnetic properties intact, and therefore their cooling functionality, after their...

This paper demonstrates that it is possible to trap and release a super paramagnetic micro bead by fixing three super paramagnetic micro beads in a triangular array at the sensitive end of a micro cantilever, and by simply switching on/off an external magnetic field. To provide evidence of this principle we trap a micro bead that is attached to the free end of single DNA molecule and that has b...

X-ray diffraction (XRD) technique due to it's strength for providing visualized atomic model of molecules, stands as first in the field of characterization of new synthesized molecules. Here, the analysis of diffraction data on discrete units of new, not yet fairly known structure of molecule $rm C_{52} H_{60} N_4 S_8 Zn_2$ is performed to obtain a quantitative view of the structure of the syst...

Mechanistic investigations of biological enzymatic processes require controlled initiation and monitoring of catalytic reactions. A well-known technique to trap and observe reaction intermediates building up along a reaction pathway is the use of low temperature conditions. Here, we report a kinetically competent system for the release of molecular oxygen at cryogenic temperature, using a cobal...

We aimed to develop a micro-robot that can crawl on contact surfaces in biological environments. The prototype chassis of this micro-bot consists of a lipid membrane that encapsulates and bonds micro-sized magnetic particles. By applying a rotating magnetic field, we hope to obtain a micro-crawler robot. In this report, we describe our observations of the rotational movement of liposomes (10–60...

this study concerns about quantum chemical modeling behavior of 02 on cr (100)surface by using density functional theory (dft) by lanl2dz and 6 — 31g* basissets, we presented the results of our first principles electronic structure calculationson the 02 molecules and their interface with cr (100) surface. the chromium metalhas the body-centered cubic structure, and chromium cluster has five cr ...

DNA, the well-known molecule that carries genetic information of almost all forms life, represents a pivotal element in formulating intelligent and versatile micro/nanorobotic systems. DNA-functionalized micro/nanorobots have opened new exciting opportunities many research areas due to synergistic combination self-propulsion at micro/nanoscale high specificity programmability DNA interactions. ...