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About me

I am a passionate researcher, dedicated teacher, and inspiring mentor. I have a diverse background spanning multiple fields, including organic and supramolecular chemistry, nanoparticle self-assembly, cryogenic transmission electron microscopy, and extracellular matrix design for breast cancer tissue culture. I am leading a multidisciplinary team of researchers at the interface of materials science and biomedical sciences. We focus on efficiently controlling the structure and properties with the highest possible precision. We develop Lab-on-a-chip-based sustainable in vitro preclinical models for personalized and precision breast cancer disease and diagnostic platforms. We fabricate bio-based short-distance optical fibers and microlasers in the optics and photonics areas. Beyond material development, we are actively engaged in advanced electron microscopy imaging, including cryogenic transmission electron microscopy (Cryo-TEM),  electron tomography, and in situ electron microscopy. For more information, see our Research Page and Publications.

Fields of expertise

  • Bio-based materials for optics and photonics
  • Breast cancer disease and diagnostic models
  • Precision nanomaterials
  • Advanced transmission electron microscopy

Project links

Research unit

Material Science and Environmental Engineering

Research career

Current position

  • 03.08.2020-Present: Associate Professor (tenure track) in Nanochemistry, Faculty of Engineering and Natural Sciences, Tampere University, Tampere, Finland. 

Academic degrees and titles

  • 19.10.2018: Abilitazione Scientifica Nationale (ASN), CHIM/07-Fondamenti Chimici delle Tecnologie, MIUR, Italy.
  • 26.05.2017: Title of Docent in Soft Matter Microscopy, School of Science, Department of Applied Physics, Aalto University, Finland
  • 13.12.2008: Ph.D. in Organic Chemistry, Department of Organic Chemistry, Indian Institute of Science, Bangalore, India. 
  • 24.05.2003: Master of Science (M.Sc. in Chemistry), Department of Chemistry, Mangalore University, Karnataka, India.
  • 19.06.2001: Bachelor of Science (B.Sc. in Chemistry, Botany, and Pharmacognosy as equal options), Shri Dharmasthala Manjunatheshwara College, Ujire, Karnataka, India.
  • 10.11.2020: Executive Master of Business Administration, Quantic School of Business and Technology, Washington D.C., USA. 
  • 04.05.2019: Fundamentals of Business, Quantic School of Business and Technology, Washington D.C., USA

Previous research experience 

  • 26.05.2017-31.07.2020: Research Fellow and Docent, Department of Applied Physics, School of Science, Aalto University, Finland
  • 01.08.2012-25.05.2017: Postdoctoral Researcher, Department of Applied Physics, School of Science, Aalto University, Finland.
  • 15.02.2009-31.07.2012: Postdoctoral Researcher, Department of Chemistry, University of Jyväskylä, Finland. 
  • 15.08.2008-14.02.2009: Visiting Ph.D. student, SITRA fellowship, Department of Chemistry, University of Jyväskylä, Finland
  • 23.09.2007-22.03.2008: Visiting Ph.D. student, CIMO fellowship, Department of Chemistry, University of Jyväskylä, Finland

Selected publications

Visit our research group page for more details: https://research.tuni.fi/png/ 

  • Bioinspired Functionally Graded Composite Assembled Using Cellulose Nanocrystals and Genetically Engineered Proteins with Controlled Biomineralization. P.Mohammadi, J.-A. Gandier, Nonappa, W. Wagermaier, A. Miserez, M. Penttilä, Adv. Mater. 2021, 33, 2102658 [Link] 
  • Luminescent Gold Nanocluster‐Methylcellulose Composite Optical Fibers with Low Attenuation Coefficient and High Photostability. V. Hynninen, S. Chandra, S. Das, M. Amini, Y. Dai, S. Lepikko, P. Mohammadi, S. Hietala, R. H. A. Ras, Z. Sun, O. Ikkala, Nonappa, Small 2021, 17, 2005205 [Link] 
  • Nanocellulose: Recent fundamental advances and emerging biological and biomimicking applications. K. Heise, E. Kontturi, Y, Allahverdiyeva, T. Tammelin, M. B. Linder, Nonappa, O. Ikkala. Adv. Mater. 2021, 2004349 [Link].   
  • DNA Origami Templated Growth of Multilamellar Lipid Assemblies. S. Julin, Nonappa, B. Shen V. Linko M. A. Kostiainen, Angewandte. Chem. Intl. Ed. 2021. [Link]  
  • Luminescent gold nanoclusters for bioimaging applications. Nonappa, Beil. J. Nanotechnol. 2020, 11, 533–546 [Link].   
  • Atomically Precise Nanocluster Assemblies Encapsulating Plasmonic Gold Nanorods, A. Chakraborty, A. C. Fernandez, A. Som, B. Mondal, G. Natarajan, G. Paramasivam, T. Lahtinen, H. Häkkinen, Nonappa, T. Pradeep. Angew. Chem. Int. Ed. 2018, 57, 6522-6526 [Link].   
  • Polymer Nanowires with Highly Precise Internal Morphology and Topography, Théophile Pelras, Clare S Mahon, Nonappa, Olli Ikkala, André H Gröschel, Markus Müllner, J. Am. Chem. Soc. 2018, 140, 12736-12740 [Link] 
  • Hydrogen bonding directed colloidal self-assembly of nanoparticles into 2D crystals, capsids, and supracolloidal assemblies. Nonappa, O. Ikkala, Adv. Funct. Mater. 2018, 28, 1704328 [Link].   
  • Reversible supracolloidal self-assembly of cobalt nanoparticles to capsids and superstructures. Nonappa, J. S. Haataja, J. V. I Timonen, S. Malola, P. Engelhardt, N. Houbenov, M. Lahtinen, H. Häkkinen, O. Ikkala, Angew. Chem. Int. Ed. 2017, 56, 6473-6477 [Link].    
  • Template-free supracolloidal self-assembly of atomically precise gold nanoclusters: From 2D colloidal crystals to spherical capsids. Nonappa, T. Lahtinen, J. S. Haataja, T. –R. Tero, H. Häkkinen, O. Ikkala, Angew. Chem. Int. Ed. 2016, 55, 16035–16038 [Link]. 

Latest publications