Microbiology

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  • Topic: Escherichia coli O157:H7, Hygiene, Bacteria
  • Pages : 4 (1151 words )
  • Download(s) : 66
  • Published : December 12, 2012
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The Effectiveness of Antimicrobial Agents Bacteria:
Clearasil and Proactive

Veronica Hillgren
11/16/12
FRI AM
Question/ Hypothesis

The purpose of my experiment is to find and compare the efficiency of Proactive™ and Clearasil™ acne products on certain bacteria. For myself, Clearasil™ works better than Proactive™ does when exposed to my pores, which are infested with bacteria. However, Proactive™ is widely known and has a large amount of advertisements on television, featuring celebrities who claim the acne treatment's amazing end products. The question is, which antimicrobial treatment, Proactive™ or Clearasil™, will kill more bacteria and have a larger inhibition zone when exposed to bacteria? My hypothesis is, if I expose Clearasil™ to Escherchia Coli and Streptococcus Epidermis, then it will kill more bacteria and have a larger inhibition zone, than Proactive™ will.

Experimental Design

Materials

Needed for this experiment, is a container of Proactive™ and a container of Clearasil™. Some tools needed are: a Bunsen burner (aseptic technique to keep hands sterile when sanitized), three sterile agar plates, a sharpie, sterile cotton swabs, two glass plates, tweezers, and sterile disks. Other materials needed are: Escherichia coli, Streptococcus epidermis, distilled water, ninety five percent ethanol, Procedure

To begin this experiment, one should take the sharpie and one plate case, and draw a line straight down the middle. Label one side "phone without hand washing" and the other "phone with hand washing ". On the second plate label it as "control group (hand washing only)". Also, make sure the name of the experimenter and the date is labeled on each of the plates. Turn the Bunsen burner on to a blue flame and put the plates around it on a table. Take the top of the control group plate off and lay it around the Bunsen burner. Then wash the hands used in the experiment using...
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