Synthesis of Model Systems and Development of Measuring Equipment
Johan Buitenhuis has a background in colloidal synthesis of latex, gold and especially silica (nano)particles, their surface modification and fluorescent labeling and the chemical modification of filamentous bacteriophages. Physical experiments are performed with the particles, often in cooperation with others, especially concerning the handling of the colloids which is sometimes critical. Future work will focus more on biological aspects, e.g. colloids might be used for instance as tracer particles or in diagnostics.
Hartmut Kriegs’ experience in designing specialized experimental, often optical setups, which are not commercially available, helps the group to operate and ever more adapt many unique measurement instruments. For instance, a heterodyne light scattering setup has been developed to study inhomogeneous flow profiles occurring especially for macromolecular systems in the gel- or glass-state. Another example is the infrared forced Rayleigh scattering instrument, that has been home-built to study temperature-gradient induced mass transport of biomacromolecules suspended in water.
- development of optical instruments
- colloidal synthesis
- light scattering
A. Qdemat, E. Kentzinger, J. Buitenhuis, U. Rücker, M. Ganeva and T. Brückel, Self assembled monolayer of silica nanoparticles with improved order by drop casting, RSC Adv. 10 (2020) 18339-18347. [10.1039/d0ra00936a]
M. Jarzebski, Y. Zhang, T. Sliwa, J. Mazuryk, T. Deptula, M. Kucinska, M. Murias, J. Buitenhuis, J. Gapiński, A. Patkowski, Core-shell fluorinated methacrylate nanoparticles with rhodamine-B for confocal microscopy and fluorescence correlation spectroscopy applications, J. Fluorine Chem. 183 (2016) 92-99. [10.1016/j.jfluchem.2016.01.014]
Z. Zhang, J. Buitenhuis, A. Cukkemane, M. Brocker, M. Bott and J. K. G. Dhont, Charge reversal of the rodlike colloidal fd virus through surface chemical modification, Langmuir 26 (2010), 10593. [10.1021/la100740e]
J. K. G. Dhont, K. Kang, H. Kriegs, O. Danko, J. Marakis, D. Vlassopoulos Nonuniform flow in soft glasses of colloidal rods Physical Review Fluids 2(4), 043301 (2017) [10.1103/PhysRevFluids.2.043301]
P. Naumann, A. Martin, H. Kriegs, M. Larrañaga, M. M. Bou-Ali, S. Wiegand Development of a Thermogravitational Microcolumn with an Interferometric Contactless Detection System The Journal of Physical Chemistry B 116(47), 13889 - 13897 (2012) [10.1021/jp3098473]
S. Wiegand, H. Ning, H. Kriegs Thermal diffusion forced Rayleigh scattering setup optimized for aqueous mixtures The Journal of Physical Chemistry / B 111, 14169 (2007) [10.1021/jp076913y]