• News

    • Profesor Robert Gale in NBMC

      05.10.2018

      On 02.10.2018 Professor Robert Gale, an outstanding specialist in the field of leukemia, currently working as a visiting professor at the Haematology Research Center, Division of Experimental Medicine, Department of Medicine, Imperial College London, visited us. In the company of Professor Grzegorz Przybylski from the Institute of Human Genetics of the Polish Academy of Sciences, became acquainted with opportunities and achievements of our Center.

    • NanoBioMedical Center on the new University website

      05.10.2018

      We are pleased to announce that the NanoBioMedical Center has been placed on the new University website under the tabs: SCIENTIFIC RESEARCH-> RESEARCH CENTERS AND LABORATORIES-> NANOBIOMEDYCZNA CENTER UAM

    • Employees of the NBMC at the Researcher’s Night 2018

      04.10.2018

      During this year's Researchers Night, falling on September 28, employees of the NanoBioMedical Center: Dr Patryk Florczak, mgr Jagoda Litowczenko-Cybulska, Dr Roksana Markiewicz, Dr Barbara Maciejewska and Dr Alicja Warowicka presented an interactive lecture entitled "Coal and its hidden faces" combined with demonstrations of experiments.

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Highlighted Publications

Nature Communications 8, 2017, 415
B. Graczykowski, A. El Sachat, J. S. Reparaz, M. Sledzinska, M. R. Wagner, E. Chavez-Angel, Y. Wu, S. Volz, Y. Wu, F. Alzina, C. M. Sotomayor Torres

Thermal conductivity and air-mediated losses in periodic porous silicon membranes at high temperatures

Heat conduction in silicon can be effectively engineered by means of sub-micrometre porous thin free-standing membranes. Tunable thermal properties make these structures good candidates for integrated heat management units such as waste heat recovery, rectification or efficient heat dissipation. However, possible applications require detailed thermal characterisation at high temperatures which, up to now, has been an experimental challenge. In this work we use the contactless two-laser Raman thermometry to study heat dissipation in periodic porous membranes at high temperatures via lattice conduction and air-mediated losses. We find the reduction of the thermal conductivity and its temperature dependence closely correlated with the structure feature size. On the basis of two-phonon Raman spectra, we attribute this behaviour to diffuse (incoherent) phonon-boundary scattering. Furthermore, we investigate and quantify the heat dissipation via natural air-mediated cooling, which can be tuned by engineering the porosity.
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Latest Video

Nowoczesne środki kontrastujące w bioobrazowaniu

Nowoczesne środki kontrastujące w bioobrazowaniu

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  • Announcements

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  • Announcements

    • NANOTECH POLAND 2018

      23.10.2017

      The Organizing Committee of the NanoTech Poland 2018, 6th-9th June 2018 held in Poznań, has a great pleasure to invite you to attend this scientific event and to enjoy the community of professionals in the field of nanoscience and nanotechnology.

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