Materials Literature
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Im Verlauf dieser Arbeit werden zahlreiche neue Zinkkomplexe unter Verwendung von N,N'- und N,O-chelatisierenden Liganden synthetisiert, strukturell charakterisiert und hinsichtlich ihrer chemischen Reaktivitat untersucht. Amidinat-, Amidat- und s-Diketiminatzinkkomplexe sind hierbei nicht nur aus akademischer Sicht i…
With the raster electron microscope (SEM), XRD defraction, adgesion strength, friction coefficient and wear rate of material properties of the coatings were studied nc — TiN. Depending on the bias potential applied to the substrate and the chamber pressure, the inclusion of high-frequency discharge, it is shown that t…
Abstract : The most common compounds formed from boron are boron carbide (B4C) and boron nitride (BN), which are generally not considered borides but which are included here since they are commercially available as high-quality powders. Borides are generally considered as compounds combining one, or more, metals with…
Cancer is the leading cause of death worldwide and one third of its burden can be decreased with early detection. Surface enhanced Raman spectroscopic (SERS) based imaging is a promising new technique for non-invasive detection of tumours due to its ultra-sensitivity and multiplexing capabilities. For in vivo SERS mol…
In the past, hardness measurements on nanocrystalline metals were limited to Vickers micro-hardness and nano-indentation tests, mainly due to sample size/thickness limitations. On the other hand, most industries require hardness values on the Rockwell scale and make extensive use of hardness conversion relationships f…
Agreement on the privileges and immunities of the ITER International Fusion Energy Organization for the joint implementation of the ITER Project. Paris, 21 November 2006
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Στην παρούσα διπλωματική εγασία έγινε μέτρηση του πάχους της μεμβράνης ερυθροκυττάρων ανθρώπινου αίματος με την τεχνική της μικροσκοπίας ατομικής δύναμης. Το αίμα που χρησιμοποιήθηκε προερχόταν από 3 υγιείς δότες. Η διαδικασία περιελάμβανε επίστρωση γυάλινων πλακιδίων με ένα μονοστρωματικό υμένιο κυττάρων αίματος και…
In a recent Letter Scanlon and Watson reported their first principles results on hydrogen in Cu2O. Their main conclusions are: (1) an interstitial H in Cu2O prefers to occupy the tetrahedral site, which is coordinated with four Cu cations, in all three charge states (+1, neutral, and -1); (2) H will bind with a Cu vac…
Diplomska naloga obravnava konstrukcijo orodij za injekcijsko brizganje polimerov. Vse vecja zahtevanost po kvaliteti in natancnosti izdelkov nam narekuje izvedbo vse bolj kompleksnih konstrukcij orodij in pri tem tudi uporabo piezo - elektricnih senzorjev. Merilo kakovostnega brizganja je potek krivulje notranjih tla…
The cubic nano-structured HfO2–Sc2O3:Eu3+ were successfully synthesized via a combustion pro- cess. Phase evolution of the synthesized powders was determined by X-ray diffraction measure- ments. Pure cubic phase of HfO2–Sc2O3 solid solution was obtained after being calcined at 800 C for 2 h.The particle size and morph…
Der Zusammenhang zwischen der Struktur und der Rheologie von salzfreien Polyelektrolytlösungen sowie die rheologischen und mechanischen Eigenschaften von adsorbierten Polyelektrolytfilmen werden erforscht. Zunächst wird die Struktur von Lösungen aus monodispersen NaPSS als Funktion der Kettenlänge analysiert. Die Lösu…
Cancers are still among the leading causes of death in the world. Despite the signifi cant efforts invested in various therapeutic strategies such as radiation therapy, surgery, chemotherapy, targeted therapy, and combined treatments, limited effi cacy of present curative methodologies remains a hurdle to overcome. Fo…
En aquest treball es descriu el disseny, sintesi i caracteritzacio de diferents biomaterials i la seva possible aplicacio en biomedicina. S'ha fet especial emfasi a ressaltar la importancia que tenen l'estructura, la composicio i l'activitat superficial en les propietats finals del biomaterial. Aixi, s'ha desenvolupat…
The existence of RNA interference (RNAi) was fi rst reported more than 20 years ago in p. x hybrida fl owers (Napoli et al. 1990). It was shown that when the gene responsible for its pigmentation was overexpressed, the fl ower lost its endogenous color by suppressing both the transgene and the endogenous gene. Napoli…
Age is a biological phenomenon that promotes skin shrinkage, wrinkles, and sagging. The skin’s elasticity and rmness are controlled by thick layers of keratinized cells and the elastic bers composed of collagen and elastin. Collagen serves as the structural backbone or scaffolding of animals and plays a crucial role…
Man-made reservoirs are strategically important aquatic ecosystems, since in addition to the theoretical limnological and ecological basis they provide, they are used for many and varied purposes that affect the water quality, operating mechanisms and succession of aquatic communities in rivers and drainage basins. Of…
Through a novel mechanical cleavage technology, TiNbO？ 5 and TiTaO？ 5 nanosheets were obtained by the exfoliation of the layered KTiTaO5 and KTiNbO5. Lamellar aggregates of the pre-prepared nanosheets accommodating Eu3+ ions have been fabricated by ？occulation of colloidal nanosheet.A series of methods including X-ray…
OBJECTIVE: To prepare compound epirubicin hydrochloride-loaded polymeric nanoparticles of L-lactic-co-glycolic acid and establish their quality control. METHODS: The emulsion-solvent evaporation method was employed to prepare and freeze-dry the compound epirubicin hydrochloride-loaded polymeric nanoparticles of L-lact…
La existencia de amortiguacion electrica resulta ser critica para la transmision de senales en medios fabricados a partir del diseno de micro estructuras Metamateriales (MMs). Mostramos en este articulo que la amortiguacion electrica obtenida mediante la intervencion de los parametros geometricos de la celda unitaria…