Publications

We are happy to share our recent open access paper on the isolation of individual homologs of polyethylene glycol (PEG) by preparative reversed-phase chromatography. Building upon a previously developed thermodynamic model, we were able to describe accurately the retention times of individual homolo...

We are pleased to announce our new open access work on using chromatography for producing highly defined nanomaterials. Specifically, we developed a special operating mode, alternate pumping, for obtaining small, atomically precise glutathione-stabilized gold nanoclusters at high purity from synthes...

In a new open-access publication, we present results of our long-lasting investigations on the chromatographic separation of polyethylene glycols (PEGs). Syntheses of polymers like PEGs always yield products with a distribution of molar weights. The broader such distribution, the less defined are th...

Understanding diffusion of molecules or nanoparticles in pores is critical for the design of chemical reactions as well as separation processes by chromatography, adsorption, or porous membranes. Our group contributed to a recent paper that resulted from a broader collaboration within the Collaborat...

Advanced measurement techniques for diffusion coefficients pave the way to a better understanding of diffusion in chemical processes. In an open-acess paper by Wenchang Wu et al. from the Institute of Advanced Optical Technologies – Thermophysical Properties (AOT‑TP), diffusivities of polyethylene g...

Malte Kaspereit contributed to a chapter on Size Exclusion Chromatography (SEC) in the recently published collection book on "Particle Separation Techniques" (Ed. C. Contado). The chapter and the book can be accessed here: W. Peukert, M. Kaspereit, T. Hofe, and L. Gromotka: Size exclusion chro...

Benjamin Reif et al. published a paper on the synthesis of supported ZIF-11 membranes. Such membranes are very promising for the important problem of separating gas mixtures. The open-access paper is a result of the collaboration between the groups of Malte Kaspereit, Martin Hartmann (ECRC) and Wilh...

Malte Kaspereit co-authored a paper with Hoang Nguyen (now at Northumbria University, Newcastle/UK) and Tuomo Sainio (LUT - Lappeenranta-Lahti University of Technology, Finland) that covers an experimental-theoretical study on the production of oligosaccharides from natural sources. It is shown that...

Bilal Haider et al. published two papers on the preparation of PDMS-coated asymmetric polyethersulfone mixed-matrix membranes (MMMs) that contain SAPO-34 and activated carbon, respectively. The articles are based on his PhD project on membrane-based gas separation performed in our group. B. Haide...