Janus Particles

Group leader


Claudia Marschelke (PhD student)
Madeleine Schwarzer (PhD student)
Sandra Marx (Scientific co-worker)

Synytska´s group provides a strong expertise in highly innovative, controlled preparation of various core-shell particles with controllable symmetrical and Janus architectures, functionalities, shapes and responsiveness for needs of self-healing coatings, composites with adaptive and/or anti-fouling adhesive properties, stabilization of polymer blends and emulsions, modification of textiles, ultra hydrophobic materials.

Advantages of the modification approaches developed in the Synytska group are as follows:
1)    Availability of well-defined core-shell with homogeneous and non-homogeneous (Janus) structures (structural perfectness, specific end-functions, controlled chemical compositions, controlled polymer shell thickness, controlled polymer shell densities);
2)    Preparation and control of architectures is straightforward: polymer brushes, hairy particles, ect.;
3)    Controlled Janus ratio/balance for Janus particles;
4)    Controlled Janus geometry for Janus particles;
5)    Controlled surface charge for homogeneous and non-homogeneous (Janus) particles;
6)    Controlled surface roughness/morphology (smooth, rough, porous) for homogeneous and non-homogeneous (Janus) particles;
7)    Controlled responsiveness & malleability for homogeneous and non-homogeneous (Janus) particles.

Selected Publications:

  • Kirillova, A. ; Stoychev, G. ; Ionov, L. ; Synytska, A. Self-Assembly behavior of hairy colloidal particles with different architectures: mixed versus Janus more Langmuir 30 (2014) 12765-12774
  • Kirillova, A. ; Stoychev, G. ; Ionov, L. ; Eichhorn, K.-J. ; Malanin, M. ; Synytska, A. Platelet Janus particles with hairy polymer shells for multifunctional materials more ACS Applied Materials & Interfaces 6 (2014) 13106-13114
  • Synytska, A. ; Kirillova, A. ; Isa, L. Synthesis and contact-angle measurements of Janus particles more ChemPlusChem 79 (2014) 656-661
  • Synytska, A. ; Ionov, L. Stimuli-responsive Janus particles more Particle and Particle Systems Characterization 30 (2013) 922-930
  • Synytska, A. ; Svetlichny, V. ; Martina, D. ; Bellmann, C. ; Simon, F. ; Ionov, L. ; Stamm, M. ; Creton, C. Intelligent materials with adaptive adhesion properties based on comb-like polymer brushes more Langmuir 28 (2012) 16444-16454
  • Puretskiy, N. ; Stoychev, G. ; Synytska, A. ; Ionov, L. Surfaces with self-repairable ultrahydrophobicity based on self-organizing freely-floating colloidal particles more Langmuir 28 (2012) 3679-3682
  • Svetushkina, E. ; Puretskiy, N. ; Ionov, L. ; Stamm, M. ; Synytska, A. A comparative study on switchable adhesion between thermoresponsive polymer brushes on flat and rough surfaces more Soft Matter 7 (2011) 5691-5696
  • Berger, S. ; Ionov, L. ; Synytska, A. Engineering of ultra-hydrophobic functional coatings using controlled aggregation of bicomponent core/shell janus particles more Advanced Functional Materials 21 (2011) 2338-2344
  • Synytska, A. ; Khanum, R. ; Ionov, L. ; Cherif, C. ; Bellmann, C. Water-Repellent Textile via Decorating Fibers with Amphiphilic Janus Particles more ACS Applied Materials & Interfaces 3 (2011) 1216-1220
  • Berger, S. ; Synytska, A. ; Ionov, L. ; Eichhorn, K.-J. ; Stamm, M. Stimuli-responsive bicomponent polymer janus particles by "grafting from"/"grafting to" approaches more Macromolecules 41 (2008) 9669-9676


  • Synytska, A.; Kirilova, A.  “Janus particles with polymer shells“, EU Patent application EP 3173-X-29502, 2014