A low-cost activated carbon (XSBLAC) prepared from XanthocerasSorbifoliaBungehull via chemical activation was investigated to determine its adsorption and desorption properties for zinc(II) ions from aqueous solutions. XSBLAC was characterized based on its N₂-adsorption/desorption isotherm, EDX, XRD, SEM and FTIR results. An adsorption study was conducted in a series of experiments to optimize ...

The development of appropriate processes for the synthesis of nanoparticles is an important aspect of nanotechnology. In this study, fungus mediated synthesis of silver nanoparticles using Microporus Xanthopus has been done. The dried macro fungi were powdered and boiled for 20 minutes to get the extracts. The extracts were treated with silver nitrate and kept in the dark conditions for 48 hrs,...

the Corrosion inhibition of mild steel in 1 M HCl has been investigated using three dendrimers by means of gravimetric, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, scanning electron microscopy (SEM) and energy dispersive Xray spectroscopy (EDX) techniques. Results showed that inhibition efficiency increases with increasing concentration of dendrimers. Among the s...

The fossil record of lichens is scarce and many putative fossil lichens do not show an actual physiological relationship between mycobionts and photobionts or a typical habit, and are therefore disputed. Amber has preserved a huge variety of organisms in microscopic fidelity, and so the study of amber fossils is promising for elucidating the fossil history of lichens. However, so far it has not...

PURPOSE The goal of this study was to compare the in vitro bioactivity in simulated body fluid (SBF) of commercially available dental implants. MATERIALS AND METHODS Bioactivity, according to ISO 23317, of commercially available dental implants with various surface modifications (BIO-surface, SLA, SLActive, TiUnite, and OsseoSpeed) was tested in SBF for 1 and 3 weeks. Surface characterization...

A capillary-enforced template-based method has been applied to fabricate calcium copper titanate (CaCu3Ti4O12, CCTO) nanotubes (diameter ~200 nm) by filling sol-gel CCTO precursor solution into the nanochannels of porous anodic aluminum oxide (AAO) templates, subsequent heating for phase formation and finally the removal of nano-channel templates by applying basic solution. X-ray diffraction (X...

In this work, the influence of the substrate bias on the crystalline structure and surface composition of Ti6Al4V thin films prepared by rf magnetron sputtering were studied. Samples were grown onto two different types of substrates: AISI 420 steel and common glass using a Ti6Al4V (99.9 %) target. Substrate bias was varied from –100V to –200 V. Samples were characterized by X-ray diffraction (X...

The SEM is especially useful when combined with Energy Dispersive X-ray spectroscopy (EDX), which can be performed in the microscope, enabling very small areas of the sample to be analyzed for their elemental composition. One disadvantage of the SEM approach is related to its high resolution. Only a very small area can be analyzed and the fracture pattern can rapidly become very complex to inte...

Poly(L-lactide-co-glycolide) (PLGA) scaffolds of pore size within the range of 250-320 μm were produced by solvent casting/ porogen leaching method. Afterwards, they were modified through adsorption of collagen type I and incubation in simulated body fluid (SBF) to allow deposition of hydroxyapatite (HAp). The wettability of the scaffolds was measured by sessile drop test. Scanning electron mic...