Mucicarmine Research Paper Example | Topics and Well Written Essays - 1000 words

Mucicarmine - Research Paper Example The end red color observed results from the combination of carminic acid and positively charged aluminium ions. The complex is the vital component of the dye that makes it feasible for use in tumor identification and subsequent cancer diagnosis in biochemical laboratories (Gupta et al., 2012). The cations in the complex are responsible for the final positive charge that characterizes the complex. Positive charge of the dye, a result of the complex formed between the carmic acid and ions of aluminium is the property that allows for its effective utilization in cancer diagnosis. Therefore, this explains the selectivity of the dye towards the negatively charged gastrointestinal mucins during staining (Myers, 2009). The most important component of the mucicarmine, carmic acid originates from cochineal group of insects. Specifically, scientists perform extraction of carmic acid from the female members of the genus Coccus cacti. Solvent extraction, which entails a series of stages, remains performed on the dried body parts of the female insects. The pigments contained in the bodies of the insects are varied but carmic acid remains the point of interest throughout the process. Dried insects are ground in a mortar; a specific amount of the powder is mixed in a methanol-water medium. The mixture is blended to form a homogenous solution. Solvent extraction in vessel containing selector water at about 80 0C follows blending. Mayer’s is a special stain that incorporates mucicarmine in its mode of action. The stain is usually alkaline due to the excess positive charges that result from the aluminium cations contained in the carmic acid and aluminium complex. The stain is more effective on the mucins, which are acidic due to excesses of negative charges. Mayer’s stain is very effective as positive charges attract negative charges causing excellent visualization of the target

A critique of movie Waiting for Superman Review

A critique of Waiting for Superman - Movie Review Example The film focuses on five children and their families (Dutro 1). These are suggested to represent the burgeoning number of children that want to be saved from the devastating public school system. The families of the children are depicted as struggling in an effort to have their children attain college education as well as accomplishing the American dream (Dutro 1). As a result, the family members engage in the lottery process. The film employs first hand interview with the children and families (Guggenheim). There is also reliance on statistics, interviews with expert, animations, and clips from the media. A critique of the movie waiting for the super man helps in understanding various issues being addressed concerning education. The film has achieved one of the vital components that are expected of the author. This has been author good credibility. This is an essential component in any film for its success and accreditation. The credibility of the author Davis Guggenheim is the reason why the film has attracted attention as compared to other films discussing the same issue (Ravitch 1). The other films taking on education such as ‘The Lottery’ and ‘The Cartel’ have received little attention so far (Ravitch 1). The reputation of the author is seen as being the holder of an Academy Award. The author won the ward due to his film about global warming ‘An Inconvenient Truth’ (Ravitch 1). His credibility is also seen as the film is discussed in popular media such as Time and New York. The film has also featured in popular shows such as The Oprah Winfrey Show (Ravitch 1). This is a clear indication that the author is credible and hence has excellent credentials. The author of the film relies significantly on various support to support the ideas of poor education system. This has been evident through interviews, images, cartoons, clips from popular media and speech by key figures in the