When buying shoes it does not matter how good-looking the shoes might be if the size does not fit. This is similar with nanoparticles, which are made by the so-called emulsion-solvent evaporation process.
This process allows for the production of nanoparticles with high purity. Nevertheless they can still be improved: so far, their size distribution cannot be fully controlled. However, a defined size is of prime importance for future applications, whether it is for drug delivery or for intelligent coatings.
An interdisciplinary and international research collaboration at the Max Planck Institute for Polymer Research in Mainz was able to rule out coalescence as reason for the borad nanoparticle size distribution. Coalescence describes the tendency of colloidal droplets to melt together.
For the first time, Daniel Crespy, who is group leader in the department of Katharina Landfester, was able to prove that the coalescence between droplets during the process is not significantly responsible for the broad size distribution of the particles.“This study elucidates the mechanism of a common process used for the preparation of nanoparticles,“ says Daniel Crespy about his research results.
Stephan Imhof | Max-Planck-Institut
Cardiolinc™: an NPO to personalize treatment for cardiovascular disease patients
14.12.2017 | Luxembourg Institute of Health
How the kidneys produce concentrated urine
14.12.2017 | Max-Delbrück-Centrum für Molekulare Medizin in der Helmholtz-Gemeinschaft
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
13.12.2017 | Health and Medicine
13.12.2017 | Physics and Astronomy
13.12.2017 | Life Sciences