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ERIC Number: EJ1145995
Record Type: Journal
Publication Date: 2017-Jun
Pages: 7
Abstractor: As Provided
ISSN: ISSN-0021-9584
Measurement of Chlorophyll Loss Due to Phytoremediation of Ag Nanoparticles in the First-Year Laboratory
Winkelmann, Kurt; Bernas, Leonard; Swiger, Brendan; Brown, Shannon
Journal of Chemical Education, v94 n6 p751-757 Jun 2017
A two-week experiment is presented in which students can observe the impact of nanoparticles on the concentration of chlorophyll in plants. First-year students in an introductory nanotechnology laboratory course and a general chemistry laboratory course synthesized silver nanoparticles and then exposed stalks of "Egeria densa" ("E. densa"), a common waterweed, to the nanoparticle solution for 1 week. In the following session, students extracted chlorophyll from the plants and measured its concentration using a visible spectrometer. Compared to other, similar lab activities, this experiment generates a lower amount of waste, requires a shorter duration of plant growth, and involves the measurement of chemical species in order to determine the toxicological effects of nanomaterials. Additional ideas are discussed for implementing the experiment in high school, general chemistry, and other courses.
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: Teachers
Language: English
Sponsor: National Science Foundation (NSF)
Authoring Institution: N/A
Grant or Contract Numbers: 1140841