Using Mung Beans as a Simple, Informative Means To Evaluate the Phytotoxicity of Engineered Nanomaterials and Introduce the Concept of Nanophytotoxicity to Undergraduate Students

Shailise S. Ross, Matthew J. Owen, Brian P. Pedersen, Gang-yu Liu, William J W Miller

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

This work presents a lecture and lab series that focuses on teaching the concept of nanophytotoxicity to undergraduate students in a relatively simple experiment. In this experiment, students evaluated the phytotoxicity of engineered nanomaterials (ENMs) using mung beans (i.e., Vigna radiata) and industrially relevant, commercially available ENMs, silicon dioxide (SiO2) and zinc oxide (ZnO) nanoparticles (NPs). In comparison to the control system using solutions of Nanopure water, the growth of mung beans in solutions of ZnO NPs with a concentration of 20 mg/L was severely stunted, showing clear evidence of a high level of nanophytotoxicity. The growth of mung beans in solutions of SiO2 NPs with the same concentration was intermediate to, though statistically separate from, the aforementioned solutions, showing clear evidence of a lower level of nanophytotoxicity than for the ZnO NPs. The simplicity of the experiment and the clear phytotoxic results should make this experiment of interest to many types of students including science majors, nonmajors, and high school students.

Original languageEnglish (US)
Pages (from-to)1428-1433
Number of pages6
JournalJournal of Chemical Education
Volume93
Issue number8
DOIs
StatePublished - Aug 9 2016

Keywords

  • Collaborative/Cooperative Learning
  • First-Year Undergraduate/General
  • Hands-On Learning/Manipulatives
  • High School/Introductory Chemistry
  • Laboratory Instruction
  • Nanotechnology
  • Plant Chemistry
  • Toxicology

ASJC Scopus subject areas

  • Chemistry(all)
  • Education

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