Bioinspired and biomimicking surfaces

These include protein films, biomembranes and biofilms. For example we have determined the 2D crystal structure of films composed of hydrophobin proteins, gaining insight into the formation mechanism and behavior of this structure that is of both biological and biotechnological relevance. We have also developed important insight into the modification of various surfaces for biosensing, as well as utilized and provided general insight into biomembranes in the context of their use as cell membrane models for biomolecular interactions relevant to drug delivery. Our publications in this area of research are linked below.

Publications in this area:

Ville Heikkinen, Ivan Kassamakov, Tapani Viitala, Miikka Järvinen, Tuomas Vainikka, Anton Nolvi, Carlos Bermudez, Roger Artigas, Pol Martinez, Virpi Korpelainen, Antti Lassila and Edward Haeggstroem: Step height standards based on self-assembly for 3D metrology of biological samples. Meas. Sci. Technol. in press (2020).

Martin Kögler, Jaakko Itkonen, Tapani Viitala and Marco G. Casteleijn: Assessment of recombinant protein production in E. coli with Time-Gated Surface Enhanced Raman Spectroscopy. Sci. Rep. 10, pp. 2472 (2020).

Annika Koponen, Amita Arora, Kohta Takahashi, Henriikka Kentala, Annukka Kivelä, Eeva Jääskeläinen, Johan Peränen, Pentti Somerharju, Elina Ikonen, Tapani Viitala and Vesa M. Olkkonen: ORP2 interacts with phosphoinositides and controls the subcellular distribution of cholesterol. Biochimie 159, pp. 90-101 (2019).

Artturi Koivuniemi: The biophysical properties of plasmalogens originating from their unique molecular architecture. FEBS Lett. 591(18), pp. 2700-2713 (2017).

Ana Catarina Alves, Aniket Magarkar, Miguel Horta, Jose L. F. C. Lima, Alex Bunker, Cláudia Nunes and Salette Reis: Influence of doxorubicin on model cell membrane properties: insights from in vitro and in silico studies. Sci. Rep. 7(11), 6343 (2017).

Filip Dusa, Erno Karjalainen, Tapani Viitala, Heikki Tenhu and Susanne K. Wiedmer: Novel cationic polyelectrolyte coatings for capillary electrophoresis. Electrophoresis 37, pp. 363-371 (2016).

Petri Ihalainen, Markus Pesonen, Pernilla Sund, Tapani Viitala, Anni Määttänen, Jawad Sarfraz, Carl-Erik Wilen, Ronald Österback and Jouko Peltonen: Printed biotin-functionalized polythiophene films as biorecognition layers in the development of paper-based biosensors. Appl. Surf. Sci. 364, pp. 477-483 (2016).

Filip Dusa, Suvi-Katriina Mikkola, Ján Petrovaj, Tapani Viitala and Susanne K. Wiedmer: Ionic liquids affects the adsorption of liposomes onto cationic polyelectrolyte coated silica evidenced by quartz crystal microbalance. Colloids Surf. B: Biointerfaces 136, pp. 496-505 (2015).

Aniket Magarkar, Vivek Dhawan, Paraskevi Kallinteri, Tapani Viitala, Mohammed Elmowafy, Tomasz Róg and Alex Bunker: Cholesterol level affects surface charge of lipid membranes in saline solution. Sci. Rep. 4, 5005 (2014).

Aniket Magarkar, Nawel Mele, Vinzenz M. Unger, Noha Abdel-Rahman, Sarah Butcher, Mika Torkkeli, Ritva Serimaa, Arja Paananen, Markus Linder and Alex Bunker: Hydrophobin film structure for HFBI and HFBII and mechanism for accelerated film formation. PLoS Comput. Biol. e1003745 (2014).

Helka Juvonen, Anni Määttänen, Petri Ihalainen, Tapani Viitala, Jawad Sarfraz and Jouko Peltonen: Enhanced protein adsorption and patterning on nanostructured latex-coated paper. Colloids Surf. B: Biointerfaces 118, pp. 261-269 (2014).

Petri Ihalainen, Fredrik Pettersson, Markus Pesonen, Tapani Viitala, Anni Määttänen, Ronald Österbacka and Jouko Peltonen: An impedimetric study of DNA hybridization on paper-supported inkjet-printed gold electrodes. Nanotechnology 25, 094009 (2014).

Petri Ihalainen, Himadri Majumdar, Tapani Viitala, Björn Törngren, Tuomas Närjeoja, Anni Määttänen, Jawad Sarfraz, Harri Härmä, Marjo Yliperttula, Ronald Österbacka and Jouko Peltonen: Application of Paper-Supported Printed Gold Electrodes for Impedimetric Immunosensor Development. Biosensors 3, pp. 1−17 (2013).

J-F. St. Pierre, A. Bunker, T. Róg, M. Karttunen and N. Mousseau: Molecular dynamics simulations of the bacterial ABC Transporter SAV1866 in the closed form. J. Phys. Chem. B 116(9), pp. 2934−2942 (2012).

Jana Lokajová, Heidi Tiala, Tapani Viitala, Marja-Liisa Riekkola and Susanne K. Wiedmer: Covalent binding of phospholipids on fused silica capillaries for electrochromatography. Soft Matt. 7, pp. 6041-6050 (2011).

Antti Rantamäki, Jelena Telenius, Artturi Koivuniemi, Pipsa Kulovesi, Gerald Brezesinski, Tapani Viitala, Esa Puukilainen, Mikko Ritala, Susanne Wiedmer, Ilpo Vattulainen and Juha Holopainen: Molecular organization of the tear film lipid layer. Biophys. J. 98(3), p488a (2010).

Michał Stępniewski, Alex Bunker, Marta Pasenkiewicz-Gierula, Mikko Karttunen and Tomasz Róg: Effects of the lipid bilayer phase state on the water membrane interface. J. Phys. Chem. B 114(36), pp.11784−11792 (2010).

Teemu Murtola, Alex Bunker, Ilpo Vattulainen, Markus Deserno and Mikko Karttunen: Multiscale Modelling of emergent materials: Biology and Soft Matter. PCCP 11(12), pp. 1869−1892 (2009).

Cauê P. Pascholati, Esteban Parra Lopera, Felippe J. Pavinatto, Luciano Caseli, Thatyane M. Nobre, Maria E. D. Zaniquelli, Tapani Viitala, Claudius D’Silva and Osvaldo N. Oliveira Jr.: The Interaction of an Antiparasitic Peptide Active against African Sleeping Sickness with Cell Membrane Models. Colloids Surf. B: Biointerfaces 74, pp. 504-510 (2009).

Luciano Caseli, Angelo C. Perinotto, Tapani Viitala, Valtencir Zucolotto and Osvaldo N. Oliveira Jr.: Immobilization of Alcohol Dehydrogenase in Phospholipid Langmuir-Blodgett Films to Detect Ethanol. Langmuir 25, pp. 3057-3061 (2009).

Felippe J. Pavinatto, Cauê P. Pacholatti, Érica A. Montanha, Luciano Caseli, Heurison S. Silva, Paulo B. Miranda, Tapani Viitala, and Osvaldo N. Oliveira Jr.: Cholesterol Mediates Chitosan Activity on Phospholipid Monolayers and Langmuir-Blodgett Films. Langmuir 25, pp. 10051-10061 (2009).

Jaana Muhonen, Jukka Vidgren, Anne Helle, Gebrenegus Yohannes, Tapani Viitala, Juha M. Holopainen and Susanne K. Wiedmer: Interactions of fusidic acid and elongation factor G with lipid membranes. Anal. Biochem. 374, pp. 133–142 (2008).

Thais F. Schmidt, Luciano Caseli, Tapani Viitala and Osvaldo N. Oliveira Jr.: Enhanced activity of horseradish peroxidase in Langmuir–Blodgett films of phospholipids. Biochim. Biophys. Acta 177, pp. 82291–2297 (2008).

Maria V. Lindén, Kristoffer Meinander, Anne Helle, Gebrenegus Yohannes, Marja-Liisa Riekkola, Sarah J. Butcher, Tapani Viitala and Susanne K. Wiedmer: Characterization of phosphatidylcholine/polyethylene glycol-lipid aggregates and their use as coatings and carriers in capillary electrophoresis. Electrophoresis 29, pp. 852–862, (2008).

Beata Korchowiec, Yohann Corvis, Tapani Viitala, Cyril Feidt, Yann Guiavarch, Catherine Corbier and Ewa Rogalska: Interfacial Approach to Polyaromatic Hydrocarbon Toxicity: Phosphoglyceride and Cholesterol Monolayer Response to Phenantrene, Anthracene, Pyrene, Chrysene, and Benzo[a]pyrene. J. Phys. Chem. B 112, pp. 13518–13531 (2008).

Luciano Caseli, Felippe J. Pavinatto, Thatyane Morimoto Nobre, Maria E. D. Zaniquelli, Tapani Viitala and Osvaldo N. Oliveira, Jr.: Chitosan as a Removing Agent of β-Lactoglobulin from Membrane Models. Langmuir 24, pp. 4150–4156 (2008).

Tomasz Róg, Ilpo Vattulainen, Alex Bunker, and Mikko Karttunen: Glycolipid Membranes through Atomistic Simulations: Effect of Glucose and Galactose Head Groups on Lipid Bilayer Properties. J. Phys. Chem. B 111(34), pp. 10146−10154 (2007).

Tapani Viitala, Jari T. Hautala, Jorma Vuorinen, and Susanne K. Wiedmer: Structure of Anionic Phospholipid Coatings on Silica by Dissipative Quartz Crystal Microbalance. Langmuir 23 609-618 (2007).

Willem M. Albers, Inger Vikholm, Tapani Viitala and Jouko Peltonen: Interfacial and Materials Aspects of the Immobilization of Biomolecules onto Solid Surfaces. Handbook of Surfaces and Interfaces of Materials, vol 5 (ed. H.S. Nalva). Academic Press., pp. 1-26 (2001).