Rachel Roberts
3/27/19
Eschner, Kat. “Your Skin's Melanin Can Conduct Electricity, and Scientists Want to Harness It.”
Popular Science, 27 Mar. 2019, www.popsci.com/eumelanin-conduct-electricity.
For my current event, I decided to read an article titled, “Your Skin’s Melanin Can Conduct Electricity, and Scientists Want to Harness it” by Kat Eschner. The article mainly focuses on a substance known as eumelanin, which is the pigment that colors human skin, hair, and eyes. It has been known for a while that this pigment can conduct electricity; however, not enough to be useful. In its natural form, eumelanin is too untidy on a molecular level to efficiently conduct electricity. Fortunately, an interdisciplinary team of Italian scientists discovered a process that increases eumelanin’s conductivity. Alessandro Pezzella, an organic chemist Italian on the team from the University of Naples Federico II said, “This is the first [stepping] stone of a long process that now can start.” They developed a particular process that organized the molecules in a way that electricity would be able to flow from electron to electron. The process is essentially heating the pigment in a vacuum; it removes the oxygen and water vapor. Without the extra molecules, the pigment becomes much more conductive. Even though this process allows eumelanin to conduct much more efficiently, it is still just a pigment. Its conductivity is much weaker in comparison to metals. However, Pezzella and his team were able to increase the conductivity by more than nine orders of magnitude which allows it to be much more helpful in the scientific field.
Since Pezzella and his team of Italian scientists were able to increase the conductivity of the pigment eumelanin, it can be useful in many more scientific studies. For example, the increase of its ability to conduct caused the pigment to be in a range that is helpful for bioelectronics. Also, organisms including humans do not have any adverse reactions to eumelanin so, it could be used in ways such as to coat medical implants or any other devices meant to go inside the human body. Although it may be a long way off, the ability to use eumelanin could significantly help people who need certain types of bioelectronics and medical implants that may not be available currently.
When reading the article by Kat Eschner, there were many good aspects of her writing.
She explained the information in the article very well. I was able to understand it although I have no previous knowledge on the topic. Also, she integrated the story of finding the process for making eumelanin more conductive into her article while also giving the main details of the research. This allowed me to get a full picture of how important this topic was and how it could affect research, especially in bioelectronics in the future. While Eschner did a good job explaining the research and the story, the article itself could be choppy. There were areas in the article where the focus of the paragraph would flip between two subjects. It often confused me as I wouldn’t know what was being mentioned at the moment. It would be much better if each paragraph had its focus so there could not be any confusion on the topics. Lastly, while her article was grammatically correct, there were several areas where it was very wordy and made me go back and read the sentence multiple times. For example, Eschner wrote, “Eumelanin is much better able to conduct.” When writing articles for a website that is open for anybody of any career or interest to look at, it is much better to stay with more simple syntax and grammar so more people would be able to understand fully.