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Nyiregyhaza, Hungary

Glodan G.,Debrecen University | Cserhati C.,Debrecen University | Beszeda I.,College of Nyiregyhaza | Beke D.L.,Debrecen University
Applied Physics Letters | Year: 2010

Interdiffusion has been studied in Ag/Au hemispherical core-shell structures on sapphire substrate. In isothermal heat treatments first a relatively fast growth of nanovoids was observed, which was followed by a slower shrinkage process. The void formation is interpreted by pure Kirkendall-porosity formation since Ag-50%Au solid solution has been formed in the shell. In contrary, in all previous publications on hollow nanoshell formation a chemical reaction took place and the shell consisted of the reaction product (i.e., of sulphide or oxide). Furthermore, in these cases the shrinkage was observed at temperatures higher than the formation temperature. © 2010 American Institute of Physics. Source

Kocurova L.,University of P.J. Safarik | Balogh I.S.,College of Nyiregyhaza | Andruch V.,University of P.J. Safarik
Microchemical Journal | Year: 2013

Innovations and trends in sample pretreatment techniques are currently focused on the development of methods that satisfy the principles of Green Analytical Chemistry. The increase in the number of publications devoted to solvent microextraction (SME) techniques testifies to the growing interest of analytical chemists in this field. In addition to miniaturization, we can see a greater than ever effort being made towards the automation of SME procedures.Rather than providing an exhaustive overview of the current state of this trend, we instead offer readers a look at what we consider to be some of the more interesting recently published solutions. © 2013 Elsevier B.V. Source

Andruch V.,University of P.J. Safarik | Burdel M.,University of P.J. Safarik | Kocurova L.,University of P.J. Safarik | Sandrejova J.,University of P.J. Safarik | Balogh I.S.,College of Nyiregyhaza
TrAC - Trends in Analytical Chemistry | Year: 2013

Ultrasonic irradiation and vortex agitation were introduced to enhance the efficiency of solvent microextraction. The present overview covers ultrasound-assisted emulsification microextraction, ultrasound-assisted surfactant-enhanced microextraction, vortex-assisted liquid-liquid microextraction, vortex-assisted surfactant-enhanced emulsification liquid-liquid microextraction, ultrasound-assisted dispersive liquid-liquid microextraction and ionic liquid-based ultrasound-assisted dispersive liquid-liquid microextraction. © 2013 Elsevier Ltd. Source

Andruch V.,University of P.J. Safarik | Balogh I.S.,College of Nyiregyhaza | Kocurova L.,University of P.J. Safarik | Sandrejova J.,University of P.J. Safarik
Applied Spectroscopy Reviews | Year: 2013

Abstract: The present article offers a historical overview and a comprehensive collection of publications devoted to dispersive liquid-liquid microextraction (DLLME), including modifications made to it and techniques derived from it. The principle of DLLME is discussed, as are the detection techniques employed, their applications, and milestones in the development of DLLME. The applications and the most important parameters of dispersive liquid-liquid microextraction and related techniques are summarized in a table. © 2013 Copyright Taylor and Francis Group, LLC. Source

Agency: Cordis | Branch: FP7 | Program: CSA-SA | Phase: FP7-PEOPLE-2013-NIGHT | Award Amount: 155.37K | Year: 2013

In Hungary the partnership of 18 institutions (one organisation managing and coordinating EU and educational and training grants, 14 top universities, two research institutes, one Observatory and numerous additional HEIs, science museums, research institutes and research groups joining the consortium as indirect partners) will organise RN 2013 with the aim of enhancing the public recognition of researchers, establish further links between research career and business innovations, find and help the researchers of tomorrow in their career and also present the European context for research. The organisers will do all efforts to organise a festival-like event, where participants can enjoy innovative and high quality, but at the same time fascinating and joyful programmes. Our aim is to prove: Meeting science for the first time is as ecstatic as love is for the first sight. The protagonists of the RN 2013 will be researchers, but we will focus on the young generation more then ever, as we believe that researchers of tomorrow live among us and it is our responsibility and also great opportunity to find them and help them towards their future career. Due to the geography of the event (all regional centres and many more towns are involved) it is possible for all to find high quality and entertaining programmes within short travelling distance. Without good education it is difficult to make significant progress. The event will contribute to the enhancement of natural sciences and it will also support the education institutions to present and share their best practices in talent development.

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