A Facile Approach for Transferring Hydrophobic Magnetic Nanoparticles into Water-Soluble Particles

A novel, easy and high-efficient method is described for transferring hydrophobic magnetic Fe 3 O 4 nanoparticles from organic to aqueous solution by wrapping a thermo-responsive and photocrosslinkable poly(N-isopropylacrylamide) (PNIPAm) terpolymer around the particles. The wrapping procedure is introduced by the co-nonsolvent transition of PNIPAm in the mixing solvent and the polymer can dissolve in water carrying Fe 3 O 4 nanoparticles by noncovalent interaction. The temperature-dependant and magnetic properties of the water-soluble particles are characterized in this paper.

Leadership and spirituality in business and public administration: a cross-cultural empirical study comparing the USA and France

National audience; In this discussion we build on previous work on the role of ethics in shaping the behaviour of leaders in business and public administration to investigate the relationship between leadership spirituality, the environment springing from such leadership, and the resulting followers’ attributions of leader effectiveness in the USA and France. Survey data collected from the USA and France were used to test a composite construct of spiritual leadership including (a) accountability, (b) rationality, and (c) honesty. The results of hypothesis tested suggest followers’ attributions of leaders’ positive outcomes increase in proportion with increases in leader’s spirituality. Thes…

Magnetic-Field-Induced Locomotion of Glass Fibers on Water Surfaces: Towards the Understanding of How Much Force One Magnetic Nanoparticle Can Deliver

Self-assembled FeCo/gelatin nanospheres with rapid magnetic response and high biomolecule-loading capacity.