Microscope

(EDS) images and spectra were obtained from various samples of silica and platinum on silica. Each sample contains unique structures which were prepared by etching the surface of silica in different conditions. A scanning electron microscope is a type of electron microscope that produces images of topography and composition by scanning a sample with a focused beam of electrons. Samples can be observed in high vacuum, low vacuum, in wet conditions, or at elevated temperatures. The images in this…

1. How do the three objective lenses on the microscope you used differ and what are the advantages and disadvantages of each? • The three main objective lenses we used were the 4x, 10x, and 40x magnification. • The 4x was great in initially finding the item we were looking for. It also gave a good look at general size of the overall item we were viewing. It wasn’t that great at letting you see a ton of detail. • The 10x was the most frequently used objective. It gave us a really nice view of…

Levofloxacin cocrystals were prepared by solvent evaporation method. The drug and co formers, stearic acid and sodium saccharin were physically mixed in varying ratios of 1:1, 1:3, 1:5, 1:7 and 1:1 and 2:1 respectively in a glass mortar and the mixtures were dissolved in ethanol as solvent for crystallization. The solvent evaporation was carried in rotary flash evaporator (Laborota 4000, Hiedolph) maintained at 40 ± 2ºC and speed of 30 rpm. The products obtained were dried in a desiccator and…

goal was set to “maximize” mode. The optimum parameter which was predicted by the RSM model was then validated experimentally in triplicates. 2.5. Scanning Electron Microscopy analysis of scaffold: The scaffold was examined under scanning electron microscope (SEM) (ZEISS EVO 18) under acceleration voltage of 10 kV. The uncoated sample was used for SEM…

The invention of microscopes have changed science and medicine drastically as it’s creation has allowed people to discover new viruses and view microorganisms which are unable to be seen by the naked eye. The microscope has also given us the opportunity to diagnose diseases such as cancer, anemia and due to the microscope’s magnification, it is also able to conduct tests such as the ‘Bone Marrow Test’. Bone Marrow Tests portray the health of the bone marrow and determine whether the bone marrow…

Kanamycin sulphate and rifampicin were purchased from Hangzhou Dayangchem Co., Ltd., Zhejiang, China. Acetonitrile and ethanol (High performance liquid chromatography, HPLC, grade) were purchased from Merck, Germany. Sodium dihydrogen phosphate, phenylisocyanate, triethylamine, orthophosphoric acid (analytical reagent grade) and silicone oil (viscosity 10 cSt) were purchased from Sigma–Aldrich, St. Louis, USA. Size 3 hard gelatin capsules were kindly donated by Capsugel Co., Ltd., Tokyo, Japan.…

Technical Review of Hydrothermal Formation of Calcium Copper Tetrasilicate Introduction Scanning electron microscopy (SEM) is used to obtain close-up images of samples with depth enabling high quality, 3D depictions on a microscopic level. It has been historically used to identify samples of interest such as bacterial biofilm, microtexture surfaces, and even cancer cells for diagnosis.[1, 2, 3] The first high magnification SEM was reported in a journal in 1938 by Ardenne after developing the…

figuring out the causative agent in a diseased patient, to knowing the correct microorganism to use when making certain foods and antibiotics. Unknown labs are a key to testing the knowledge a student has gained throughout the course. Materials: Microscope Bunsen Burner Beaker Test Tube Holder Test Tube Clothes pin Striker Loops and Needles Distilled Water Crystal Violet Alcohol Safranin Iodine Methylene Blue Hydrogen Peroxide Reagent A (sulfanilic acid) Reagent B…

3.2 Analysis of chip formation Fig. 7 shows the chip forms obtained during milling of the Al7075 (a) and MMCs (b) using the uncoated carbide inserts at a feed rate of 0.1 mm/tooth, machining speed of 290 m/min and axial depth of cut of 1.3 mm. The Al7075 chips formed during milling exhibited a smooth and shiny surface, and were in a semicircular and parabolic trapezoidal wave with a small radius and a saw-tooth-form, as shown in Fig. 7 (a). Fig. 7 (b) shows the chip shapes formed during the…

Since the water splitting reaction using semiconductor electrode reported by Fujishima et al. in 1972 [1], there is increasing interest in the development of metal oxide photocatalysts for environmentally friendly applications such as air purification [2], hydrogen production via water splitting [3] and the removal of organic molecules from water [4]. Recently, photocatalyst thin film has aroused growing interests instead of a powder type of photocatalyst. Photocatalyst film can be deposited…