Naslov
Nanoscale characterisation on functional materials: AFM beyond imaging

Autori
Šegota, Suzana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
24. hrvatski skup kemičara i kemijskih inženjera / - Zagreb, 2015

Skup
24. hrvatski skup kemičara i kemijskih inženjera

Mjesto i datum
Zagreb, Hrvatska, 21.04.2015. - 24.04.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
atomic force microscopy; force spectroscopy; materials

Sažetak
Materials and devices at the nanoscale hold vast promise for innovation in virtually every industry and public endeavor including health, electronics, transportation, the environment and national security [1], [2], [3]. The atomic force microscope (AFM) belongs to the broad family of scanning probe microscopes in which a proximal probe is exploited for investigating properties of surfaces with subnanometre resolution. AFM has been found to provide useful information on the multitude of its applications in fundamental and applied research (biology, chemistry and biophysics). The possibilities of spectroscopic analysis, surface modification and molecular manipulation gave rise to a real breakthrough in the realm of AFM use. The use of mild imaging conditions opened the way to dynamic studies in which conformational changes and molecular interactions could be followed in real time at single-molecule level. AFM is widely viewed as the most significant technological frontier currently being employed in material science [4], [5], [6], [7]. In these cases AFM is an excellent technique to characterize morphology of obtained films, including the possibility of resolving defects on the nanometre scale. Not only structural properties can be investigated, but also mechanical or chemical and functional properties are the focus of many AFM applications. The possibility of resolving phase separation, distinguishing areas with different mechanical or surface charge properties and identifying the presence of different phases is related to the high vertical resolution of AFM in a liquid environments [8], [9]. Also, broad application of AFM stems from its ability to follow biogeochemical processes10 in environment on various interfaces by monitoring the surface morphology through the surface images acquired at nanoresolution. [1] Aleksandr Noy, Handbook of Molecular Force Spectroscopy, Springer, 2008. [2] S. Amelinckx, D. van Dyck, J. van Landuyt, G. van Tendeloo, Handbook of Microscopy, Methods, VCH, Weinheim, 1997. [3] Pier Carlo Braga, Davide Ricci, Atomic Force Microscopy Biomedical Methods and Applications, Humana Press, 2004. [4] S. Šegota, L. Ćurković, D. Ljubas, V. Svetličić, I. Fiamengo Houra, N. Tomašić, Synthesis, characterization and photocatalytic properties of sol-gel TiO2 films. Ceram. Int. 37 (2011) 1153-1160. [5] L. Ćurković, D. Ljubas, S. Šegota, I. Bačić, Photocatalytic degradation of Lissamine Green B dye by using nanostructured sol–gel TiO2 films. J. Alloys Compd. 604 (2014) 309- 316. [6] K. Mehulić, V. Svetličić, S. Šegota, D. Vojvodić, I. Kovačić, D. Katanec, N. Petričević, D. Glavina, A. Čelebić, A study of the surface topography and roughness of glazed and unglazed feldspathic ceramics. Coll. Antropol. 34 (2010) 235-238. [7] S. Ercegović Ražić, R. Čunko, V. Svetličić, S. Šegota, The Application of AFM Microscopy for the Identification of Fibres Surface Changes after Plasma Treatments. Material Technol. 26 (2011)146-152. [8] S. Šegota, D. Vojta, G. Pletikapić, G. Baranović, Ionic strength and composition govern the elasticity of biological membranes. Chemistry and Physics of Lipids 186 (2015)17- 29. [9] A.Štimac, S. Šegota, M. Dutour Sikirić, R. Ribić, L. Frkanec, V. Svetličić, S. Tomić, B. Vranešić, R. Frkanec. Surface Modified Liposomes by Mannosylated Conjugates Anchored via the Adamantyl Moiety in the Lipid Bilayer, Biochim. Biophys. Acta Biomembranes 1818 (2012) 2252-2259. [10] I. Sondi, B. Salopek-Sondi, S. Škapin, D. Srečo, S. Šegota, I. Jurina, B. Vukelić. Colloid-chemical processes in the growth and design of the bio-inorganic aragonite structure in the scleractinian coral Cladocora caespitosa. J. Colloid Interface Sci. 354 (2011) 181-189.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA