Jul 6 – 10, 2015
Institute of Nuclear Physics PAN, Kraków
Europe/Warsaw timezone

Surface modification of multiwalled carbon nanotubes (MWCNTs) for biological applications

Jul 9, 2015, 6:05 PM
15m
Institute of Nuclear Physics PAN, Kraków

Institute of Nuclear Physics PAN, Kraków

Crown Piast Hotel
soft matter and glassformers Soft Matter and Glassformers

Speaker

Dr Malgorzata Jasiurkowska-Delaporte (NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland)

Description

Owing to their outstanding physical and chemical properties carbon nanotunes (CNTs) are a promising material with potential applications in drug delivery systems, electronics and aerospace. The major challenge of the practical use of CNTs in medicine is enhancing of their ability to disperse in hydrophilic solvents. Chemical treatment with acids damages the graphite-like structure of CNTs and creates carboxyl groups on their surface. This facilitates further covalent functionalization with various polymers. In this study, detailed picture of the impact of acid treatment on the multiwalled carbon nanotube (MWCNT) surface is obtained by combination of high-resolution transmission electron microscopy (HR-TEM), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR) and ab initio calculations [1]. The correlations between the oxidation protocol, CNT size, degree of damage to the CNT, and types of functional groups will be discussed. The further functionalization of MWCNTs with polyethylene glycol (PEG) and their potential application in medicine will be also presented. [1] B. M. Maciejewska M. Jasiurkowska-Delaporte, A. I. Vasylenko, K. K. Kozioł S. Jurga, RSC Adv., 2014,4, 28826-28831 Acknowledgements The research was supported by National Science Centre (UMO-2013/11/D/ST5 /02900), Nation Centre for Research and Development (PBS1/A9/13/2012) and the EuropeanSocial Fund (POKL.04.03.00-00-015/12)

Primary authors

Dr Alicja Warowicka (NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland) Dr Anna Baranowska-Korczyc (NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland) Dr Barbara M. Maciejewska (NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland) Dr Malgorzata Jasiurkowska-Delaporte (NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland)

Co-authors

Mr Andrij I. Vasylenko (NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland) Dr Krzysztof K. Koziol (Department of Materials Science and Metallurgy, University of Cambridge, UK) Dr L. Emerson Coy (NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland) Prof. Stefan Jurga (NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland)

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