Cellulose

Plastic Surgery Ever wonder how it’s possible to patch up a face that is almost completely gone? Or what it would be like to be apart of the medical aspect of the war? Many doctors used a new technique in this war to help soldiers called plastic surgery. Plastic surgery was the newest way to fix someone’s face or body part that was destroyed. Plastic surgery is a very complicated and messy process that was executed in WWI, it has both evolved and stayed the same since. During WWI there were…

BEMA film was designed to rapidly deliver a drug across the mucosa when fast onset of effect is required and to formulate drugs with poor oral bioavilability[1] Buprenorphine has very poor oral bioavailability(~10%) due to extensive first pass metabolism[3] and hence cannot be formulated as an oral tablet. IM, IV, suppository, transdermal, sublingual and buccal administration routs all bypass first pass metabolism and hence increase the bioavailability however IM, IV or suppositories would be…

Throughout history, humans have been clearing land and hunting animals heavily. This has pushed some animals passed their point of coming back, leading to extinction. Some have been pushed very close to the point of extinction, leaving it endangered. In today’s world, there are 16,306 living organisms who are endangered due to numerous reasons, examples being excessively hunted to because their habitat is being destroyed because humans need the lumbar or resources found there…

4.3. Niosomes: Niosomes were developed and patented by L'Oréal in the 1970s and 80s. The first niosomal formulation was introduced by Lancome in 1987 and have been widely applied in pharmaceutics as a demanding tool to improve the delivery of many drugs34. Niosomes are vesicles formed by self-assembly of hydrated and synthetic non-ionic surfactants e.g sorbitans (Spans) or polysorbates (Tweens). Non-ionic surfactants are inexpensive, non-toxic, and can be found in wide variety. Types of…

Donna Haraway and Vandana Shiva have argued against the idea that science needs objectivity. Haraway explains that objectivity, “has been used to signify a leap out of the marked body and into a conquering gaze from nowhere,” (Haraway 581). She says that objectivity is the, “transcendence and splitting of subject and object,” (Haraway 583). Their arguments against objectivity look at the role of individual objectivity within science. However, science needs objectivity in order to obtain the most…

Specialty Ingredients makes cellulose ethers, vinyl pyrrolidones, and bio-functional products. Looking at the financial report of the financial statement of the company from 2015 to 2016, Specialty Ingredients sales decreased 174million or 8% to 2,089 million in 2016. “Energy market…

Table 1 Composition of Lansoprazole microparticles Formulation code Amount of drug(mg) Amount of polymer chitosan (mg) Drug polymer Ratio Tween 80 (%w/v) F1 100 100 1:1 1.25 F2 100 200 1:2 1.25 F3 100 300 1:3 1.25 F4 100 400 1:4 1.25 F5 100 500 1:5 1.25 F6 100 600 1:6 1.25 Characterization of Lansoprazole microparticle The microparticle will be characterized for following parameters: Percentage yield: After complete drying, the drug loaded microparticle was collected and weighed accurately…

Painting is a very universal art form. Paintings are created in civilizations all over the world from all different time periods. The flexibility of paintings is wonderful, all that is needed is a pigment, which is the color, and a binder, such as egg or milk which allows the pigment to turn into a paste and be applied to a variety of surfaces including paper, wood, stone, and canvas. The purpose of paintings also vary greatly, paintings are used to tell stories or illustrate religious…

Environmental Effects The poisonous gases from cigarettes increases air pollution levels of carbon monoxide and nitrogen oxide making it very difficult for one to breath. This not only effects human heath but also the environment. They are made of cellulose acetate, a plastic that is not biodegradable even after the cigarette has extinguished it can cause wildfires, harm to plants and animals and toxic to the water we drink. The environmental effects of production for tobacco products is…

start, “The simplest definition of a polymer is a useful chemical made of many repeating units” (“The Basics”). Further, polymers are not limited to just plastics, but all types of plastic are polymers (“Plastics”). Some examples of polymers include cellulose and DNA (“Plastics”). Plastics are used everywhere in life today, and understanding the way that they are formed is important to understand, as it connects to modern issues such as recycling. Notably, polymers can be composed of a variety…