Designing A Whole New Ultra Poreux Cellulose Based Material

Nano-composite plastics and carbon nanotubes have been utilized for industrial and consumer packaging, the later offering an improved packaging solution for electronics components by making the materials used lighter and stronger. Nano-porous silica is a high porous, low-density solid material that supports various temperatures making it a great insulation product that can be applied in a wide range of fields from pipe insulation to refrigerators and even microelectronics. Nanoparticle based colloids are employed in the manufacturing of sunscreens, paints, and printer inks and nano-coatings can be applied in order to obtain scratch resistant surfaces. Composite nano-materials can be considered the basis for all the other current and future commercial applications of nanotechnology.

The fabrication of hollow multilayer microcapsules in the beginning is initiated by layer-by-layer (LbL) self-assembly technique of oppositely charged polyelectrolyte on colloidal template followed by core decomposition. The main concept of microencapsulation is to protect the contents of fabricated microcapsules from the harmful environment in which it is surrounded. In this literature review, I shall outline the technique of microcapsules encapsulation employing LbL approach, lists of polyelectrolytes and templates and application of microcapsules.

Nerolin was prepared with a mixture of methanol, 2-naphthol, potassium hydroxide (KOH), and iodoethane using a reflux apparatus. A reaction mixture was obtained, and allowed to freeze. Nerolin crystals were obtained by way of gravity filtration and vacuum filtration in a successive manner. The nerolin crystals were further analyzed to show purity of the experimental product by examining the shape and size of the crystals, along with the melting point of the crystals. From this experiment, 6.44% of nerolin crystals were recovered, with a melting point measured as 33-35C. The preparation of nerolin was performed due to its role in maintaining long-lasting fragrance release properties in fabrics.

Aim: To classify unknown substances according to their structure type and to observe how the structure of materials affects their uses.

According to the results obtained by Popa et al.[17], upon cooling and after addition of the salt, an infinite variety of k- and i-carrageenan gels can be efficiently produced due to development of double helices of polymeric chains into the building blocks of a three-dimensional network. Difference between the 2 types of carrageenan were found in terms of gelation, κ-carrageenan leading to stiff, brittle gels (with potassium

Materials. The following chemicals are purchased and used as received. Cadmium oxide (CdO, 99.99 %), and potassium sulfide (K2S, 95 %) are obtained from Strem Chemicals. 1-octadecene (90 %), 3-mercaptopropionic acid (99 %), and α-terpineol (97 %) are purchased from Acros Organics. Selenium powder (Se, 99.99 %), oleic acid (OLAC, 90 %), oleylamine (OLAM, 70 %) and acetic acid (99.7 %) are purchased from Sigma-Aldrich. Toluene (99.9 %), 2-propanol (99.9 %), ethanol (90 %), acetonitrile (99.9 %), and formamide (FA, 99.6 %) are acquired from Fisher Scientific. P25 TiO2 and ethyl cellulose (5 % in toluene and ethanol) are supplied by Evonik Degussa Corporation and TCI, respectively. OLAC, OLAM, and FA are dried using standard procedures.

Initially known amount of zeolite was uniformly dispersed in N-Methyl-2-pyrrolidone (NMP) using ultrasonication for 2 h at 30°C. 3 g of PVC polymer was then added to the solution with stirring at ambient temperature for 1-2 hours and left undisturbed for few hours to result bubble free homogenous polymer solution. This solution was further cast on a glass plate and kept in oven maintained at60°C for 48h to produce dense membrane. This method of producing dense membrane is termed as “solution casting and solvent evaporative

Now that you own an attractive, new timber floor, you probably wonder how to protect it the best for it to retain its ideal condition. You can select between an oil-based polyurethane and a water-based polyurethane for your timber floor coating. While both provide excellent protection for a wood floor, they differ in their characteristics and application methods.

To prepare samples was necesary to place the agarose in a water bath, until it was in a liquid state. At the same time, the granulose cells were ajusted to a concentation of 10^6 cells/ml using PMI Media 1640 (Life Techologies; Carlsbad, CA, USA). A volumen of 25 microlitres of diluted granulose cells was passed to the Eppedorf tube with the agarose at 37ºC, then it was mixed gently.

Ethanol is a green renewable energy that produces from lignocellulosic materials. In the process, rice straw and corn straw required the physical pretreatment, chemical pretreatment at 100oC for 2 hours, and consequently with cellulase hydrolysis at pH 4.8, 42oC. Therefore, the concentration of 2 - 4 %(v/v) of HCl and H2SO4 were applied. Moreover, the 4 %(v/v) of HCl solution released the highest amounts of total sugar, glucose, and xylose. The corn straw produced the total sugar at 61.43 g/L while rice straw generated 27.36 g/L. The HCl pretreatment released a higher amount of xylose than glucose, In the corn straws, the HCl pretreatment produced the 14.59 g/L of xylose and 7.46 g/L of glucose whereas, in the rice straw pretreatment, the process

Chitin the second most abundant polysaccharide is synthesized by an enormous number of living organisms including fungi and insects. These biopolymers have found many applications in different areas such as: packaging material, membrane for removal of metal ions, dyes and pigments in waste water engineering; anti-cholesterol, fat binding, preservative and food additive in food industry; seed and fertilizer coating, controlled agrochemical release in agriculture; surface treatment, photographic paper in pulp and paper industry; moisturizer, body creams and lotions in cosmetics and toiletries. It has also found wide applications in biomedical such as tissue engineering, drug delivery, wound dressing, scaffolds, cancer diagnosis, etc. The majority of these versatile applications are coming of its non-toxicity, biocompatibility and biodegradability.

Glycerol becomes an important compound due to its outstanding characteristic between physical and chemical properties thus can be readily applicable with other materials. For physical properties, glycerol is a water soluble, almost colourless, clear, viscous, odourless and almost hygroscopic liquid with a high boiling point. In its pure anhydrous condition, glycerol has a specific gravity of 1.260 g/ml-1, a melting point of 17.9 °C and a boiling point of 290 °C under normal atmospheric pressure (Pagliaro and Rossi, 2008). In term of chemical characteristics, glycerol is a trihydric alcohol which capable of reacting as an alcohol, yet stable under most conditions. A list of physical and chemical properties which are important for its applications

In the world of global warming, all kinds of pollution and fuel shortages going on, renewable and clean/ green energy is increasingly the ideal solution of energy related problems we have to solve one way or another. Biofuel is one of the mainstream and highly supported solutions nowadays, an idea to make renewable fuel by living organisms such as fiber, corn, vegetable oil or sugar cane. Unlike nonrenewable fossil fuels over extracted by people causing various environmental problems like generating a considerable amount greenhouse gas, current technology already lets renewable fuel like biofuels to shrink a certain amount of greenhouse gas production, making it a more ‘clean’ source of energy.

as a white, odorless, tasteless, crystalline powder composed of porous particles. It is commercially available in different particle sizes and moisture grades that have different

The XRD spectra of blends were compared to the control spectra of native keratin and alginate as mentioned in Figure 1. In XRD spectra, the native keratin and native alginate give a highest intensity at near 7543 and 4100 at about 19° and 14° angle of 2θ respectively, which is also confirmed by other researchers16–18. The spectra of keratin/alginate blends prepared at a ratio of 10:90, 30:70 and 50:50 gives a highest intensity peak 3573, 5128 and 3264 at 22°, 6.8° and 7.1° angle of 2θ respectively. The XRD spectra of all blend ratios gives a new peak in between 6°-8° angle of 2θ which is not present in the spectra of native keratin and alginate, this depict that the structure of native keratin and alginate become altered and form a new structural pattern in blend form. The XRD spectra of blend scaffold revealed that the intensity of blend has transformed as compared to the control XRD spectra which confirm that the compatibility exists in between keratin and alginate. Several works are reported in which compatibility between blend components was examined by XRD. For example, Tian et al. 19 performed the XRD study to identify the interaction between soy-protein and agar. The compatibility between the carboxy-methyl-cellulose and