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Projects / Programmes source: ARIS

Advanced magnetic and multifunctional materials

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Periods
January 1, 2015 - December 31, 2019
Research activity

Code Science Field Subfield
2.04.00  Engineering sciences and technologies  Materials science and technology   
1.04.00  Natural sciences and mathematics  Chemistry   

Code Science Field
T153  Technological sciences  Ceramic materials and powders 

Code Science Field
2.05  Engineering and Technology  Materials engineering 
Keywords
Synthesis, nanoparticles, nanocomposites, composite nanoparticles, complex nanomaterials, surfaces functionalization, self / directed assembly, magnetic, fluorescent, multifunctional, biomedical applications, cancer treatment, hyperthermia, photonics, catalysis, semiconducting ceramics.
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Researchers (13)
no. Code Name and surname Research area Role Period No. of publications
1.  32402  Bernarda Anželak    Technical associate  2015 - 2019  46 
2.  36327  PhD Blaž Belec  Materials science and technology  Junior researcher  2015 - 2017  83 
3.  34434  PhD Peter Dušak  Materials science and technology  Junior researcher  2015  25 
4.  38205  Tanja Goršak  Materials science and technology  Junior researcher  2015 - 2019  36 
5.  26478  PhD Sašo Gyergyek  Materials science and technology  Researcher  2015 - 2019  291 
6.  29529  PhD Slavko Kralj  Materials science and technology  Researcher  2015 - 2019  250 
7.  15148  PhD Darja Lisjak  Materials science and technology  Researcher  2015 - 2019  413 
8.  37477  Helena Macut  Materials science and technology  Junior researcher  2015  7 
9.  10372  PhD Darko Makovec  Materials science and technology  Head  2015 - 2019  667 
10.  52055  PhD Sebastjan Nemec  Materials science and technology  Junior researcher  2018 - 2019  57 
11.  35476  PhD Olivija Plohl  Textile and leather  Junior researcher  2015 - 2016  103 
12.  34450  PhD Klementina Pušnik Črešnar  Chemistry  Junior researcher  2015 - 2016  55 
13.  07992  PhD Igor Zajc  Materials science and technology  Researcher  2015 - 2019  71 
Organisations (1)
no. Code Research organisation City Registration number No. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  90,753 
Abstract
The program is directed in the development of knowledge enabling the synthesis of new, complex nanomaterials and the knowledge needed for their application in biomedicine and different technologies, e.g., biotechnology, chemical and environmental technologies, and in ICT. Already in the last program “Advanced inorganic magnetic and semiconducting materials” the research was transferred from ceramics to nanotechnology. The next program “Advanced magnetic and multifunctional materials” will continue in the direction of complex nanomaterials synthesis. In the synthesis of nanoparticles (NPs) the focus will be directed from magnetic to other materials, in the first place fluorescent. The key for the application of NPs, as well as for their assembly into the nanocomposites, is in the control of their surface properties by bonding different molecules onto their surfaces, i.e., functionalization. The research of functionalization will be oriented towards the influence of NPs’ surface properties on their behaviour in biological systems to develop coatings optimized for medical applications. Apart from superparamagnetic (SPM) NPs, fluorescent NPs based on halogenides and chalcogenides will also be developed. The focus will be on the possibility of their excitation with NIR light, which enables deep penetration into a tissue, on their stability, and on the use of their decomposition for new approach in cancer treatment. SPM nanoclusters (NCs) and composite NPs will be synthesized using the processing of NPs in the suspensions. SPM NCs are ideal for use in magnetic separation, which is the basis for new technologies ranging from the detection of specific molecules/cells, to the purification of heavy metals from water. The binding of (bio)catalysts onto the SPM NCs will enable their magnetic separation and even certain control of the chemical reactions with our original approach based on local heating of the catalyst and directing mass transport in the reaction mixture with a magnetic field. New materials enabling new technologies in the field of photonics and magneto-rheology will be developed by suspending SPM NCs and hexaferrite nanoplatelets in different liquids. For example, the periodicity of the structure established in the SPM NCs’ suspension under a magnetic field can be controlled by the field strength. With that the wavelength of the scattered light can be controlled for use in the development of new displays, scattering elements and sensors. The composite NPs coupling different magnetic properties for application in cancer treatment or coupling magnetic and ferroelectric properties for new magneto-electrics will be at the forefront of composites research, as well as the monolith composites containing magnetic or fluorescent NPs dispersed in an optically transparent solid matrix for photonic applications. For the support of industry we maintain research on semiconducting ceramics with a positive temperature coefficient of resistivity.
Significance for science
Accessibility to the appropriate material is frequently the main obstacle in the development of a new area of science and technology. The scientific principles governing the development in a certain area of science might frequently be well known; however, the development is limited by a lack of the appropriate technology needed for the preparation of the material required. In such a situation, knowledge enabling the synthesis of the required material can facilitate a burst of research and new products. The two examples are synthesis of the carbon nanotubes with defined chirality, which limits the development of nanoelectronics, or the burst of scientific research and development of new products enabled with the discovery of graphene preparation using the simple exfoliation of graphite. There is also the example of ferromagnetic liquid crystals, the existence of which were predicted by Brochard and de Gennes already more than four decades ago, however, only our development of magnetic Ba-hexaferrite nanoplatelets synthesis enabled the first experimental evidence, and, even more importantly, enabled further research and development of entirely new technologies. The program is directed at the synthesis of new, complex nanomaterials. Combining nanoparticles (NPs) with specific magnetic, electric, optic, and chemical properties in the nanocomposites can lead to entirely new properties, especially when the nanocomposites display specific, hierarchical order or periodic structure, or when the properties of different NPs are coupled. The new properties can be the basis for the development of new fields of science and technology and for the development of new products and services. We have to mention here our original approaches in the teranostics of cancer, which are based on the development of new fluorescent and magnetic NPs. The development of organic coatings, for which water permeability can be controlled with an external stimulus (magnetic field, NIR laser) will enable the use of the controlled decomposition of NPs in therapy. It is our new, original approach, different to already established photodynamic therapy applying poisonous radicals formed at the surfaces of the NPs during their laser irradiation. The development of new magnetic nanoplatelets displaying a large magnetic moment will enable the transfer of a magnetic torque on cancer cells for their destruction, combined with magnetic hyperthermia. Also this approach of the cancer treatment is new and can initiate the research in completely new directions also in other fields of medicine, where the anisotropic magnetic NPs can be applied, for example, for magnetic guidance. The bonding of (bio)catalysts on the superparamagnetic nanoclusters (SPM NCs) will enable an entirely new approach to catalysis, based on indirect control of chemical reactions with a magnetic field. This original research, which can only be possible with development of the appropriate magnetic, catalytic materials, will be important on broad fields of chemical technology, biotechnology, chemical engineering, and environmental technology. The synthesis of stable suspensions of SPM NCs with a narrow size distribution will enable a new approach to the control of optical properties (magneto-optics) and will enable new directions in photonics research. We have managed to synthesize such magneto-optic NC suspensions using original synthesis procedure as second research group in the world (after group of Yadong Yin from University of California). Our synthesis method enables even easier production of the larger amounts of the suspension. The research based on application of our materials can thus have especially large impact in various fields of photonics. The suspensions are also very interesting in applications based on their large magneto-rheologic effect. The effect is especially pronounced if the NCs are linked together into chain agglomerates of the controlled length. This represents an original app
Significance for the country
The majority of the research in the program is directed to the synthesis of complex nanomaterials and their use in medicine and technology. The methods that we use for synthesis of new nanomaterials do not require expensive equipment, as they base on original scientific approaches and profound knowledge of basic chemical processes. Special care is given to new synthesis methods that enable a relatively easy transfer to industrial production. Our research is thus important for Slovenian industry. Although the research related to medicine is mainly basic and its applications seem quite distant, the acquired practical knowledge is important in cooperation with Slovenian pharmaceutical companies and SMEs providing specialized services to a biomedical research. Our cooperation with Lek Pharmaceuticals Company is already well established on the research related to the development of new nanoparticles-based drugs. The knowledge developed in the research of materials applications in medicine is also practically applicable for the development of new technologies, products and services, especially related to magnetic separation. We already cooperate with the Cinkarna Celje Company on the use of the magnetic separation in water purification. We will continue to participate in solving the ecological problems of water remediation, which is increasingly problematic in Slovenia. The magnetic separation is also important in biotechnology and in chemical technology, for example, in new, magnetically retractable (bio)catalysts that can be used by Slovenian industry, ranging from process industries, such as the producers of basic chemicals, over biotechnology and pharmacy, to food industry. We are already involved in the development of new processes in the wine and beer industry based on the magnetic separation of microorganisms. In the future, we intend to broaden our R&D on other applications in the food industry, for example, in milk and juice processing. Similarly, our knowledge gained in the research on fluorescent NPs for biomedical application will be practically applied in technology, for example, in the field of fluorescent optical fibres for sensorics, where we closely cooperate with Optacore Company. A part of our research remains devoted to ceramics displaying a positive temperature coefficient of resistivity (PTCR) where we traditionally cooperate with the Stelem Company. PTCR materials can also be synthesized by dispersing conducting nanoparticles into an insulating matrix, such as polymer. Such PTCR materials can be applied as inexpensive heaters, which do not require an external temperature regulation.  The materials can be of large interest for Slovenian polymer industry, such as Akripol Company, with which we already cooperated in the past. To even further strengthen the transfer of our research results into practical use we recently established a spin-out company Nanos Scientificae d.o.o. and settled its legal relation with Jožef Stefan Institute. In the initial step the company will market some of our knowledge related to the functionalization of magnetic nanoparticles to international customers working in biomedical research and photonics. The spin-out company gives many new opportunities for the marketing of our developed new technologies. Last but not the least, the program pioneers many areas of nanomaterials in Slovenia. Acquired knowledge is disseminated over research, industry, and to society, and is thus important for the technological development of Slovenia. The program contributes to an increase in the level of higher education with three habilitated professors. The members of the program are involved in pedagogic process at Faculty for Chemistry and Chemical Technology, University of Maribor (course: Chemistry of nanomaterials), Faculty of Medicine, University of Maribor (Nanoparticles in medicine) and at the International Postgraduate School of Jožef Stefan (Physico-chemical properties of nanoparticles). Nano
Most important scientific results Annual report 2015, interim report, final report
Most important socioeconomically and culturally relevant results Annual report 2015, interim report, final report
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