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Jenkins, Samir V.; Gohman, Taylor D.; Miller, Emily K.; Chen, Jingyi – Journal of Chemical Education, 2015
The rapid academic and industrial development of nanotechnology has led to its implementation in laboratory teaching for undergraduate-level chemistry and engineering students. This laboratory experiment introduces the galvanic replacement reaction for synthesis of hollow metal nanoparticles and investigates the optical properties of these…
Descriptors: Molecular Structure, Technology, Interdisciplinary Approach, Science Instruction
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Ramalho, Maria J.; Pereira, M. Carmo – Journal of Chemical Education, 2016
In this work, a laboratory experiment to introduce graduate students to nanotechnology is described. Students prepared poly(lactic-"co"-glycolic acid) (PLGA) nanoparticles using two different synthesis procedures, a single and a double emulsion-solvent evaporation method. The students also performed a physicochemical characterization of…
Descriptors: Science Instruction, Science Laboratories, Laboratory Experiments, Science Experiments
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Scalfani, Vincent F.; Turner, C. Heath; Rupar, Paul A.; Jenkins, Alexander H.; Bara, Jason E. – Journal of Chemical Education, 2015
The emergence of 3D printing has dramatically advanced the availability of tangible molecular and extended solid models. Interestingly, there are few nanostructure models available both commercially and through other do-it-yourself approaches such as 3D printing. This is unfortunate given the importance of nanotechnology in science today. In this…
Descriptors: Molecular Structure, Printing, Models, Design Crafts
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Paluri, Sesha L. A.; Edwards, Michelle L.; Lam, Nhi H.; Williams, Elizabeth M.; Meyerhoefer, Allie; Pavel Sizemore, Ioana E. – Journal of Chemical Education, 2015
In recent years, nanoscience and nanotechnology have been drawing enormous attention due to the numerous applications of nanomaterials. In an attempt to nurture interest towards these areas in young minds and to develop the next generation of environmentally conscious scientists and engineers, this new laboratory module focuses on the green and…
Descriptors: Molecular Structure, Technology, Science Instruction, Chemistry
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Sharpe, Erica; Andreescu, Silvana – Journal of Chemical Education, 2015
We describe a laboratory experiment that employs the Nanoceria Reducing Antioxidant Capacity (or NanoCerac) Assay to introduce students to portable nanoparticle-based paper sensors for rapid analysis and field detection of polyphenol antioxidants. The experiment gives students a hands-on opportunity to utilize nanoparticle chemistry to develop…
Descriptors: Science Instruction, Science Laboratories, Laboratory Experiments, Science Experiments
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VanDorn, Daniel; Ravalli, Matthew T.; Small, Mary Margaret; Hillery, Barbara; Andreescu, Silvana – Journal of Chemical Education, 2011
There has been much interest in magnetite (Fe[subscript 3]O[subscript 4]) due to its utility in adsorbing high concentrations of arsenic in contaminated water. The magnetic properties of the material allow for simple dispersion and removal from an aqueous system. An inquiry-based laboratory has been developed that illustrates these unique…
Descriptors: College Science, Scientific Concepts, Science Curriculum, Science Instruction
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Mankidy, Bijith D.; Coutinho, Cecil A.; Gupta, Vinay K. – Journal of Chemical Education, 2010
The diffusion coefficient of polymers is a critical parameter in biomedicine, catalysis, chemical separations, nanotechnology, and other industrial applications. Here, measurement of macromolecular diffusion in solutions is described using a visually instructive, undergraduate-level optical refraction experiment based on Weiner's method. To…
Descriptors: Chemistry, Biological Sciences, Chemical Engineering, Science Instruction
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Jacobberger, Robert M.; Machhi, Rushad; Wroblewski, Jennifer; Taylor, Ben; Gillian-Daniel, Anne Lynn; Arnold, Michael S. – Journal of Chemical Education, 2015
Graphene's unique combination of exceptional mechanical, electronic, and thermal properties makes this material a promising candidate to enable next-generation technologies in a wide range of fields, including electronics, energy, and medicine. However, educational activities involving graphene have been limited due to the high expense and…
Descriptors: Science Instruction, Secondary School Science, High Schools, College Science