Author:
Integrated Nanosystems Development Institute (INDI)
Subject:
Biology
Material Type:
Activity/Lab
Level:
High School
Tags:
  • Bacteria
  • Colloidal Silver
  • E. Coli
  • Nanotechnology
  • License:
    Creative Commons Attribution
    Language:
    English
    Media Formats:
    Text/HTML

    Education Standards

    Do Your Socks Smell? Exploration of bacteria & colloidal silver

    Do Your Socks Smell?  Exploration of bacteria & colloidal silver

    Overview

    This lab will reinforce the experimental design process while also learning about nanomaterials such as colloidal silver.  

    Learning Objectives

    Students will design an experiment to discover the antimicrobial properties of colloidal silver.

    • Lesson developed from “Real Science or Marketing Hype
    • ”http://www.districtor1.org/pages/uploaded_files/HighSchoolSTEM_Nanoparticles.pdf

    Materials

    1. Colloidal Silver
    2. White tube socks cut into strips
    3. Prepared agar plates with/without E. coli

    Procedure

    1. Distribute Nanooze article on “Smelly Feet”  (electronic version http://www.nanooze.org/smelly-feet/)
    2. Class discussion on the article 
    3. Students will be asked to design an experiment in pairs to test the antimicrobial properties of colloidal silver.

    Experimental Design Steps:

    1.Identify Problem or Question

    2.Form Hypothesis

    3.Procedure

    4.Data & Observations

    5.Conclusion

    Students will design and carry out the experiment over the course of 3-5 days.

    Day 1 & 2—students will read the article and design the experiment.

    Day 3—students will carry out the experiment.

    Days 4& 5—students will make observations, collect data and draw conclusions.

    Post-lab:  Students will present their experiment and results to class in 3 minute presentation.

    Credits

    This learning module was created by Nicole Simpsom, a participant in Indiana University-Purdue University’s NSF-Funded “Nanotechnology Experiences for Students and Teachers (NEST)” Program (Award # 1513112).