The feasibility of using high gradient magnetic separation (HGMS) to separate the Fe304 nanoparticles was studied in this work. We present a general model for nanoparticle capture based on calculating the limit of static nanoparticle buildup around the collection wires in an HGMS column. Model predictions were compared successfully with experimental results from a bench-scale HGMS column. Permanent capture of individual nanoparticles is limited by diffusion away from the wires; however, 60-125 nm aggregates of particles can be captured permanently in the bench-scale column. The model provided estimates of the minimum particle size for permanent capture of individual nanoparticles and nanoparticle aggregates.

Magnetic control of the properties and the flow of liquids is a challenging field for basic research and for applications. This book is meant to be both an introduction to, and a state-of-the-art review of, this topic. Written in the form of a set of lectures and tutorial reviews, the book addresses the synthesis and characterization of magnetic fluids, their hydrodynamical description and their rheological properties. The book closes with an account of magnetic drug targeting.

Progress in Physical Chemistry is a collection of recent “Review Articles” published in the “Zeitschrift für Physikalische Chemie”. The aim of a “Review article” is to give a profound survey on a special topic outlining the history, development, state of the art and future research. Collecting these articles the Editors of Zeitschrift für Physikalische Chemie intend to counteract the expanding flood of papers and thereby give students and researchers a means to obtain fundamental knowledge on their special interest. The second volume of Progress in Physical Chemistry is a collection of thematically closely related minireview articles written by the members of the Collaborative Research Centre (SFB) 277 of the German Research Foundation (DFG). These articles are based on twelve years of intense coordinated research efforts. Central topics are the synthesis and the characterization of interface-dominated, i.e. nanostructured materials, mainly in the solid state but also as nanoparticles / nanorods in liquid dispersion (ferrofluids) or as gas / liquid in mesoporous host systems (thermodynamics in confinement). For the synthesis physical vapour deposition (PVD), chemical vapour deposition (CVD), electrochemistry, and various sol-gel and microemulsion routes are employed. For the characterization a broad spectrum of methods from physics, materials science and physical chemistry is used, like scattering methods, nuclear hyperfine interaction methods and different types of scanning probe microscopy. The correlation between, on the one hand, the nanostructure and, on the other hand, the thermodynamics, the magnetic and mechanical properties specific to the nanometre scale as well as the theoretical modelling of the same are in the focus of the scientific interest.

The book contains six sections. The first section covers general articles; then there is a section concentrating on novel systems and applications. This is followed by one that deals with a range of applications of polymers, surfactants and liquid crystals. This is followed by a section on advances in fundamental understanding. Then there is one on biological systems, and finally there is a section on micelle and vesicle systems, with particular emphasis on dynamic aspects. The contributors, including Physicists, Chemists, Biologists and Chemical Engineers, variously chose to write review-type articles, summaries of their own recent work in the field and its relevance in the general concept of self-assembly, specific short papers related to their particular presentation, or their own thoughts concerning the future development of their particular interest area. All these aspects are addressed in the book. The book covers research at the forefront of the subject, and it is expected to be a very useful addition to the literature in this important field.