Functional surfaces

Contact: Dr. L. Ionov

We are interested in design of materials with switchable, self-healing, superhydrophobic and anti-icing properties.

Switchable surfaces

We design switchable surfaces by immobilization of stimuli-responsive polymers on surfaces, which form so called polymer brush layers. The polymer brushes were used for control of adsorption and activity of proteins, separation of liquids, etc. We also designed switchable surfaces using colloidal particles mixed with fusible solids.

Superhydrophobic surfaces

Superhydrophobic self-cleaning surfaces were designed by using colloidal particles with special geometries such as raspberry-like particles and diatomaceous earth particles, which were modified by grafted hydrophobic polymers. We also demonstrated possibilities to design self-healing superhydrophobic surfaces using colloidal particles mixed with fusible hydrophobic solids. The designed superhydrophobic surfaces are also promising for reduction of icing and can be used for design of anti-icing surfaces.

References

Puretskiy, N.; Chanda, J.; Stoychev, G.; Synytska. A.; Ionov, L.
Anti-icing superhydrophobic surfaces based on core-shell fossil particles
Advanced Materials Interfaces (2015), accepted.

Reuther, C.; Tucker, R.; Ionov, L.; Diez, S.
Programmable patterning of protein bioactivity by visible light more
Nano Letters 14, (2014), 4050–4057.

Ionov, L.; Synytska, A.
Self-healing superhydrophobic materials more
Physical Chemistry Chemical Physics 14 (2012), 10497-10502.

Puretskiy, N.; Stoychev, G.; Synytska, A.; Ionov, L.
Surfaces with self-repairable ultrahydrophobicity based on self-organizing freely-floating colloidal particles more
Langmuir 28 (8) (2012), 3679–3682.

Ionov, L.; Minko, S.
Mixed Polymer Brushes with Locking Switching more
ACS Applied Materials & Interfaces 4(1) (2012) 483–489.

Puretskiy, N.;  Ionov, L.
Synthesis of robust raspberry-like particles using polymer brushes more 
Langmuir 27(6) (2011) 3006-3011

Puretskiy, N.; Stoychev, G.; Stamm, M.; Ionov, L.
Switchable surfaces based on freely floating colloidal particles more 
ACS Applied Materials & Interfaces 6 (10) (2010) 2944-2948.

Ionov, L.; Houbenov, N.; Sidorenko, A.; Stamm, M.; Minko, S.
Stimuli-responsive command polymer surface for generation of protein gradients more
Biointerphases 4 (2009) FA45-FA49

Ionov, L.; Synytska, A.; Diez, S.
Temperature-induced size-control of bioactive surface patterns more
Advanced Functional Materials 18 (2008) 1501-1508

Synytska, A.; Stamm, M.; Diez, S.; Ionov, L.
Simple and fast method for the fabrication of switchable biocomponent micropatterned polymer surfaces more
Langmuir 23 (2007) 5205-5209

Ionov, L.; Sapra, S.; Synytska, A.; Rogach, A. L.; Stamm, M.; Diez, S.
Fast and Spatially Resolved Environmental Probing Using Stimuli-Responsive Polymer Layers and Fluorescent Nanocrystals more
Advanced Materials 18 (2006) 1453-1457

Ionov, L.; Houbenov, N.; Sidorenko, A.; Stamm, M.; Minko, S.
Smart Microfluidic Channels more
Advanced Functional Materials 16 (2006) 1153-1160

Ionov, L.; Stamm, M.; Diez, S.
Reversible Switching of Microtubule Motility Using Thermoresponsive Polymer Surfaces more
Nano letters 6 (2006) 1982-1987

Ionov, L.; Sidorenko, A.; Eichhorn, K.-J.; Stamm, M.; Minko, S.; Hinrichs, K.
Stimuli Responsive Mixed Grafted Polymer Films with Gradually Changing Properties: Direct Determination of Chemical Composition more
Langmuir 21 (2005) 8711-8716

Ionov, L.; Stamm, M.; Diez, S.
Size sorting of protein assemblies using polymeric gradient surfaces more
Nano letters 5 (2005) 1910-1914

Ionov, L.; Houbenov, N.; Sidorenko, A.; Stamm, M.; Luzinov, I.; Minko, S.
Inverse and Reversible Switching Gradient Surfaces from Mixed Polyelectrolyte Brushes more
Langmuir 20 (2004) 9916-9919

Ionov, L.; Sidorenko, A.; Stamm, M.
Gradient Mixed Brushes: "Grafting To" approach more
Macromolecules 37 (2004) 7421-7423

Ionov, L.; Zdyrko, B.; Sidorenko, A.; Minko, S.; Klep, V.; Luzinov, I.; Stamm, M.
Gradient Polymer Layers by "Grafting To" Approach more
Macromolecular Rapid Communications 25 (2004) 360-365

Ionov, L.; Minko, S.; Stamm, M.; Gohy, J.F.; Jérome, R.; Scholl, A.
Reversible Chemical Patterning on Stimuli-Responsive Polymer Film - Environment Responsive Lithography more
Journal of the American Chemical Society 125 (2003) 8302-8306