Magnetic particle spectroscopy offers new eyes for surface chemistry!

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Surface properties of nanoparticles and the corresponding (de-) agglomeration phenomena are crucial for nanoparticle functionalities and processability. However, especially in optically dense media the investigation of agglomeration is challenging. Three groups of the CRC1411 have joined forces for a unique analytical perspective on magnetic particle agglomeration combining magnetic particle particle spectroscopy (MPS), analytical ultracentrifugation (AUC) and cryogenic transmission electron microscopy (cryo-TEM). The results outline the potential of MPS as “fast and easy” method to investigate nanoparticle surface chemistry.

Andreas Wolf; Andreas Zink; Lisa Stiegler; Robert Branscheid; Benjamin Apeleo Zubiri; Stephan Müssig; Wolfgang Peukert; Johannes Walter; Erdmann Spiecker, Karl Mandel*
Magnetic In Situ Determination of Surface Coordination Motifs by Utilizing the Degree of Particle Agglomeration
Journal of Colloid and Interface Science 2023, DOI: