Pregled bibliografske jedinice broj: 532324
Peak Force Tapping AFM, state of the art tool for quantitative nanomechanical mapping
Peak Force Tapping AFM, state of the art tool for quantitative nanomechanical mapping // Collaborative workshop on Charge density waves: small scales and ultrashort time Book of Abstracts / Biljaković, Katica (ur.).
Vukovar, 2010. (predavanje, međunarodna recenzija, sažetak, ostalo)
CROSBI ID: 532324 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Peak Force Tapping AFM, state of the art tool for quantitative nanomechanical mapping
Autori
Pletikapić, Galja ; Berquand, Alequandre ; Svetličić, Vesna
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo
Izvornik
Collaborative workshop on Charge density waves: small scales and ultrashort time Book of Abstracts
/ Biljaković, Katica - Vukovar, 2010
Skup
Collaborative workshop on Charge density waves: small scales and ultrashort time
Mjesto i datum
Vukovar, Hrvatska, 28.10.2010. - 31.10.2010
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Peak Force Tapping; AFM; nanomechanics
Sažetak
This study highlights the capacity of Peak Force Tapping, a novel AFM imaging mode, for investigating nanomechanical properties of different regions in marine diatoms, providing high resolution quantitative maps. Marine diatoms are eukaryotic, unicellular algae that are ubiquitously present in almost every water habitat on earth. Apart from diatom ecological significance, diatoms are mainly known for the intricate geometries and spectacular patterns of their silica-based walls. These patterns are species specific. Diatoms cell walls are composed of silica and organic components and show a complex microscopic structure. Understanding how organic matter is associated with the silica structure could provide an important insight into biomineralization process and patterning on the cellular level. Here we have selected weakly silicified, pennate marine diatom, Cylindrotheca closterium (strain CCNA1), isolated from the Northern Adriatic seawater. The unique characteristics of Cylindrotheca spp. cell wall are regions (valve) which are believed to be completely unsilificied, thus consisting of purely organic material. This makes them ideal candidates for studying structure and organization of organic and inorganic domains of cell walls. As a result, we have correlated differences in nanomechanical properties with assumed composition (organic domains, silica regions) and morphology of diatom cell walls. These findings are in accordance with our AFM results obtained on “organic free” diatom cell walls.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Biologija
