Compatibility Study Of Keratin / Alginate Blends

Melting points are indicative of identifying an unknown product and the level of impurity the product contains. In this case, the possible identity of the product based on its melting points are determined by comparing the obtained melting points of the product to the melting points of the five possible products. Two mini capillaries, containing the product only, were used to determine the product’s melting point. For one mini capillary, the temperature range was 132.1-134.2℃, and the product’s melting point for the second minicapillary ranged from 135.1-137.5℃. In addition, melting points were obtained with the product mixed with meso-hydrobenzoin. The temperature range was 135.0-136.0℃ and 135.0-137.5℃. Although the recorded melting point values fall into the racemic range, but the results still indicate that the product is a meso-hydrobenzoin. The melting point values for the product mixed with the meso-hydrobenzoin standard explains that it is unlikely that the product is racemic. The melting point values were two degrees from each other due to the meso-hydrobenzoin standard making

This lab was conducted in order to determine the melting points of five samples: pure urea, pure trans-cinnamic acid, 90% Urea and 10% trans-cinnamic acid, 50% Urea and 50% trans-cinnamic acid, and 10% Urea and 90% trans-cinnamic acid. The melting points of the substances listed above were obtained by placing 1-2mm samples of each substance in a Mel Temp. From the obtained melting points, a binary phase diagram was created.

Though the products had dissimilar melting point values, it is not enough to conclude that they are different. To be certain of the identity of the products, Infrared Spectroscopy (IR) and H- NMR were used. While IR is used to determine the functional groups present in an unknown substance through identification of covalent bonds, H-NMR is used to determine the structure of an unknown compound. The IR from both products had peaks at almost identical frequencies. The IR of both

The corresponding chemical compositions of the worn flank face (Figure 3-14 (a)) detected by EDS are presented in Figure 3-15.

After reviewing the data, it can be concluded that our hypothesis was, indeed, true. Though it is difficult to confirm whether the cuvettes that contained the highest concentration (15% and 10%) denatured, our team agreed that the higher concentration was less effective due to lower change in absorbance.

Results: No substantial qualitative data was collected, except that the original reaction mixture turned a purple color. Upon the addition of anise oil and heat, the reaction mixture turned a brown color. And with the addition of NaHSO3 the mixture turned a white color. The mass of the final product sample was measured to be 0.08g (see Calculation 1). The melting point range for this sample was 172.8-185.4ºC in Trial 1 and 171.6-185.2ºC in Trial 2 (see Table 1). The IR spectrum of anise oil can be found attached. Peaks appear to exist at 3022.86, 3002.41, 2957.58, 2933.88, 2912.63, 2834.94, and 2723.19 (cm-1). Another set of peaks appear to exist at 1608.06, 1510.55, 1464.73, 1441.16, 1306.3, 1283.06, 1247.18, 1174.78, 1036.26, 964.58, 839.29, and 787.03 (cm-1). No other significant quantitative results were collected.

INTRODUCTION ................................................................................................. 3 THE OROTON BRAND ....................................................................................... 3 OROTON PRODUCTS........................................................................................ 3 THE CHINESE MARKET .................................................................................... 4 OBJECTIVES ......................................................................................................

Are you trying to decide whether to get a Brazilian Blowout or a Keratin treatment? Before heading off the salon and sending a decent amount of money for such services, it is important to understand what each treatment does so that you know the kind of results you can expect to see when the stylist is all done with your hair.

Parafilm and stopwatch with a digital readout or second hand was required. The concentration experiment began by adding 100 µL of solution C (Low ALP concentration) to cuvette 1a. The cuvette was immediately covered with parafilm, inverted to mix, the parafilm was removed, and the absorbance was recorded at 0 seconds then once more every seconds for 5 minutes in Table 5. The readings were recorded once the cuvette was placed into the spectrophotometer. This procedure was done rapidly (Wilson, et al 2015). The process was similar for cuvette 2a. 400 µL of solution C was added to cuvette 2a then immediately covered with parafilm, inverted to mix, the parafilm was removed, and inserted the mixed solution into the

Potassium Permanganate (KMno4), Potassium Dichromate (K2Cr2O7), and Methylene Blue, are the pure substances that were used to prove the hypothesis because of their varieties in terms of their color and molecular weight. In a petri dish with agar gel with three wells, a drop of each of the prepared solutions of the pure substances was simultaneously dropped in each of the wells, then the petri dish was immediately covered to avoid external forces from affecting the diffusion. In a span of 30 minutes, the diameters (mm) of the colored areas were measured at a regular interval of 3 minutes and were recorded.

Material and thickness were not the only components involved in bolus selection. For some materials, wetness could also be a factor. Researchers experimented and determined if the different wetness levels in wet gauze made the gauze an appropriate alternative for Superflab (Benoit, Pruitt, and Thrall, 2009). They compared different wetness levels of gauze and it’s effect on its attenuation ability. The rResearchers assessed the outcome of different gauze wetness levels and compared the effectiveness of different wetness levels to that of Superflab. While the researchers measured the wetness of the gauze in terms of physical density, the results of this study showed that at a certain physical density, 1.02 g/cm3, the wet gauze sponges performed

Dental sealants give our patients a head start on good oral health. This is why North Brunswick dentist Dr. Irina Trakhtman offers cavity-fighting dental sealants recognized by the American Dental Association. A dental sealant is a clear composite material that is applied directly to cavity-prone chewing surfaces and grooves of the back teeth, providing protection against decay.

Experiments are reported as mean ± SD and were generated in multiples of triplicate for proper statistical evaluation. Comparisons between two groups were made using Student’s t-test and the significance level was determined by a p-value < 0.05. Spectral analysis was carried out with OriginPro software (Origin 2015, OriginLab corporation, MA, USA).

FTIR (Fourier Transform Infrared Spectroscopy) spectra of the partially purified SP were determined using FTIR spectrophotometer model 5700 (M/S Thermo electron Corporation, USA). Polysaccharide powder (2–3 mg) was mixed with KBr and pressed into a disk. The whole IR spectrum was analyzed with a scan range of 4000–400 cm-1. Thirty scans were taken with 4 cm-1 resolution. CO2 and H2O corrections were incorporated. Reproducibility of the normalized spectra was ±2%. (Shanthi et al., 2014).

Organic compounds have been subjected to comparative investigation to differentiate the behaviour of one from the other. The physical state at room temperature, odor and color of the samples were noted by simple observation. The samples are classified as to miscible, slightly immiscible or immiscible if it is a liquid and very soluble, soluble, partially soluble or insoluble, depending on its reaction with the solvents. The samples were also tested using litmus paper to classify its