From macromolecule to nanofiber: Electrospinning just the technique for the job

Introducing middle/ high school-aged students to STEM based education can be very challenging for teachers in today's classrooms. Finding ways to bridge the gaps in knowledge between science, technology, engineering, and math is a desire most teachers have. Using unique ways to introduce information to their students through labs, and demonstrations, is a task providing teachers the opportunity to utilize their creativity. This demonstration is an example of ways in which teachers assists their students in making connections between advances in STEM and everyday life activities. This demonstration will also help students understand the importance of the collaboration between different disciplines. The technique discussed in this paper is one that is utilized by scientists and engineers to design new materials with new functionality that assists doctors in repairing tissue in the human body. One particular macromolecule selected for this demonstration which grabs the eyes of youth and adults everywhere is sugar, also known as glucose. When this particular macromolecule is transformed into a fiber like material, called "cotton candy", there is a twinkle in the eyes of carnival goers everywhere. How is this macromolecule transformed into a stringy fibrous material that appears like a well spun spider web? Furthermore what does this have to do with engineers, scientists, and students' grades 6th-12th? Scientists have discovered that in order for these macromolecules to be used, and beneficial, they must be transformed into very small building blocks that go beyond the vision of the naked eye as well as what is viewed by using a light microscope. These polymers must be transformed to Nano (10-9 m) scale sized architecture in order for live cells to communicate. This communication can be very beneficial to all involved. The understanding of this concept and its benefits can have a profound effect on STEM education. © 2012 American Society for Engineering Education.