Darja Lisjak (Slovenia)


Jožef Stefan Institute, Ljubljana, Slovenia; Department for Materials Synthesis


Phone : +386 1 4773 872

Email : darja.lisjak (at) ijs.si

COST ROLE : MC Member (Slovenia)

Description of the Organisations and PI

Jožef Stefan Institute, JSI is the largest research institution in Slovenia, which covers fields of physics, chemistry, biochemistry, materials and environmental sciences, electronics and information technology, nuclear reactor engineering and energetics. The research at JSI is fundamental and applicative. JSI is also intensively involved in the higher education via Jožef Stefan Postgraduate School as well as in mentoring students' research in cooperation with Slovenian and foreign universities.


Darja Lisjak received her PhD in Materials Science from the University of Ljubljana, Ljubljana, Slovenia, in 1999. She has been employed at Jožef Stefan Institute since 1994 with intermediate visiting positions as a research associate at University of Pennsylvania, Philadephia, USA (1997/98) and visiting senior researcher at University of Trieste, Trieste, Italy (2015/16). She was also employed as senior scientific associate at Center of Excellence for Biosensors, Instrumentation and Process Control (COBIK), Ajdovščina, Slovenia (2010-2013). Currently she is a senior scientific associate at Jožef Stefan Institute and Asst. Prof. at Jožef Stefan International Postgraduate School, both Ljubljana, Slovenia. Her current research focus is in nanomaterials for magnetic, optical, magneto-optical and bio-medical applications, which is related to the synthesis, surface functionalization and assembly of nanoparticles into functional materials, including relevant characterization. She (co-)authored more than 80 scientific papers in peer-reviewed journals, was awarded for the discovery of ferromagnetic liquid crystals suspension by Zois Recognition, and coordinated/led various EU (MNT-ERA.NET, Eureka, Euripides, Manunet, bilateral) projects and projects with Slovenian industry.

Description and scientific profiles of the group

In the last decade the research at the Department for Materials Synthesis was focused (but no limited) on nanomaterials, including their syntheses, characterization, functionalization, self-assembly, field-directed assembly, studies of the effect of the nanosize on the chemical, structural and physical properties of nanoparticles. The nanomaterials of interest aim magnetic, optical, magneto-electric magneto-optical, catalysis, bio-medical and biotechnological applications. The department if fully equipped for materials synthesis and basic characterization. We are involved in basic and applied research projects, which resulted numerous scientific papers, patents, and two spin-off companies.

Research infrastructure

The Department for Materials Synthesis has fully equipped laboratory for the synthesis of (nano)materials and their basic characterization, like reaction reactors, autoclaves, (ultra)centrifuges, high-energy ultrasonic tip, shaker, variety of furnaces with a possibility for the precise atmosphere control, hoods, lyophilizator, DLS, magnetometer, viscosimeter. We also have access to (and operational skills for) variety of electron microscopes (from scanning to high-resolution electron microscopes), SQUID, fluorescence spectrophotometer, spectroscopic and potentiometric chemical analysis, X-ray diffraction, TGA, UV-VIS and IR spectroscopy, zeta-potential meter.

Most significant recently published papers:


  • LISJAK, Darja, PLOHL, Olivija, VIDMAR, Janja, MAJARON, Boris PONIKVAR-SVET, Maja. Dissolution Mechanism of Upconverting AYF4:Yb,Tm (A = Na or K) Nanoparticles in Aqueous Media. Langmuir, 2016, vol. 32, 8222-8229. doi: 10.1021/acs.langmuir.6b02675
  • LISJAK, Darja, PLOHL, Olivija, PONIKVAR-SVET, Maja, MAJARON, Boris. Dissolution of upconverting fluoride nanoparticles in aqueous suspensions. RSC advances,  2015, vol. 5, 27393-27397, doi: 10.1039/c5ra00902b.
  • FERK, Gregor, KRAJNC, Peter, HAMLER, Anton, MERTELJ, Alenka, CEBOLLADA, Federico, DROFENIK, Mihael, LISJAK, Darja. Monolithic magneto-optical nanocomposites of barium hexaferrite platelets in PMMA. Scientific reports, 2015, vol. 5, 11395-1-11395-8, doi: 10.1038/srep11395
  • MERTELJ, Alenka, LISJAK, Darja, DROFENIK, Mihael, ČOPIČ, Martin. Ferromagnetism in suspensions of magnetic platelets in liquid crystal. Nature, 2013, vol. 504, 237-241, doi: 10.1038/nature12863.
  • LISJAK, Darja, DROFENIK, Mihael. Chemical substitution - an alternative strategy for controlling the particle size of barium ferrite. Crystal growth & design, 2012, vol. 12, str. 5174-5179, doi: 10.1021/cg301227r
  • LISJAK, Darja, JENUŠ, Petra, MERTELJ, Alenka. The influence of the morphology of ferrite nanoparticles on the directed assembly into magnetically anisotropic hierarchical structures. Langmuir, 2014, vol. 30, 6588-6595, doi: 10.1021/la5012633.
  • SHUAI, M., KLITTNICK, A., SHEN, Y., SMITH, G.P., TUCHBAND, M. R., ZHU, C. PETSCHEK, R. G., MERTELJ, A., LISJAK, D., ČOPIČ, M.,  MACLENNAN, J. E., GLASER, M. A.., CLARK, N. A. Spontaneous liquid crystal and ferromagnetic ordering of colloidal magnetic nanoplate. Nature communications, 2016, vol. 7, 10394-1- 10394-8, doi: 10.1038/ncomms10394.


Related research grants:

  • Advanced magnetic and multifunctional materials, task leader, grant from Slovenian Research Agency, 2015-2019, budget 1.2 MEuro
  • Optical fibres doped with fluorescent nanoparticles – Ministry for Education, Science and Sport of the Republic of Slovenia + Optacore, project leader (2013-2015), budget 31.5 + 13.5 kEuro
  • Fiber Optics Magnetostrictive Sensor, Slovenian project leader, grant MANUNET, 3211-09-0000552, (2010-2011), budget 475 kEuro


COST Action CM1403 (2014-2018)

Chair: dr Hans Gorris (University of Regensburg, Germany)

Vice-Chair: prof.Tero Soukka (University of Turku, Finland)

COST Science Officer: Dr. Lucia Forzi (Bruseels, Belgium)

STSMs Manager: dr hab. Artur Bednarkiewicz (PAS & WCB EIT+, Poland)


info @ ucnp.eu


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