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Vinnacombe-Willson, Gail A.; Chiang, Naihao; Weiss, Paul S.; Tolbert, Sarah H.; Scarabelli, Leonardo – Journal of Chemical Education, 2021
Gold nanoparticles are exciting materials in nanotechnology and nanoscience research and are being applied across a wide range of fields including imaging, chemical sensing, energy storage, and cancer therapies. In this experiment, students will synthesize two sizes of gold nanospheres (~20 and ~100 nm) and will create gold nanostars utilizing a…
Descriptors: Science Instruction, Chemistry, Hands on Science, Science Experiments
Larm, Nathaniel E.; Essner, Jeremy B.; Thon, Jason A.; Bhawawet, Nakara; Adhikari, Laxmi; St. Angelo, Sarah K.; Baker, Gary A. – Journal of Chemical Education, 2020
We report on a simple, rapid, and room-temperature undergraduate-level experiment for gold nanoparticle synthesis, analysis, and utilization as a catalyst for the sodium-borohydride-assisted reduction of methylene blue and Congo red dyes. Typical procedures toward gold nanoparticle formation require an elaborate, lengthy synthesis (some requiring…
Descriptors: Science Instruction, College Science, Undergraduate Study, Hands on Science
Palmans, Sofie; Vermeulen, Jens; Chiaverini, Natalie; Mortier, Tom – Journal of Chemical Education, 2019
The Leidenfrost nanochemistry synthesis of gold colloids was introduced in this "Journal" as an advanced method to synthesize gold nanoparticles during an undergraduate nanochemistry research project. When trying to repeat these experiments in the laboratory, we experienced difficulties in the synthesis of the gold nanoparticles since…
Descriptors: Science Instruction, College Science, Undergraduate Study, Inorganic Chemistry
Cheng, Xinpeng; Chen, Jonna; Gainer, Morgan J.; Zhang, Liming – Journal of Chemical Education, 2019
Gold is an increasingly prominent transition metal in organic synthesis. The air-stable, water-insensitive cationic gold(I) catalysts enable varieties of synthetic transformations with a simple reaction setup. However, this increased importance has not coincided with an increase in the application of gold in second-year organic chemistry courses.…
Descriptors: Organic Chemistry, Synthesis, College Science, Science Instruction
Trought, Mikhail; Perrine, Kathryn A. – Journal of Chemical Education, 2021
Surface chemistry impacts technology, advancing the development of new heterogeneous catalysts, semiconductor devices, and materials synthesis. Carbon surfaces are ubiquitous in various fields, and the surface reactivity can be altered by surface functionalization on the molecular scale, introducing functional groups, thus shifting their…
Descriptors: Science Instruction, Science Experiments, Science Laboratories, Laboratory Experiments
Ye, Yiling; Tang, Chun; Zhang, Chengyang; Dong, Gang; Liu, Junyang; Hong, Wenjing – Journal of Chemical Education, 2021
Fabrication of molecular devices will meet the demands of the miniaturization of traditional electronic devices. Although microfabrication based on the complementary metal-oxide-semiconductor process can fabricate high-quality single-molecule devices, the cost is high, leading to a challenge to provide a hands-on experiment in the teaching…
Descriptors: Quantum Mechanics, Chemistry, Laboratory Equipment, Electronics
Perera, Y. Randika; South, Taylor M.; Hughes, Alex C.; Parkhurst, Ashlyn N.; Williams, Olivia C.; Davidson, Mackenzie B.; Wilks, Chloe A.; Mlsna, Debra A.; Fitzkee, Nicholas C. – Journal of Chemical Education, 2020
A simple one-dimensional [superscript 1]H NMR experiment that quantifies protein bound to gold nanoparticles has been developed for upper-division biochemistry and physical chemistry students. This laboratory experiment teaches the basics of NMR techniques, which is a highly effective tool in protein studies and supports students to understand the…
Descriptors: Teaching Methods, Spectroscopy, Science Instruction, Laboratory Experiments
He, Zhiyu; Ding, Shansen; Wang, Luyang; Wang, Guoqing; Liang, Xingguo; Takarada, Tohru; Maeda, Mizuo – Journal of Chemical Education, 2021
Demonstration of a colorimetric approach for nucleic acid detection represents an attractive educational experiment for chemistry undergraduate students in the time of coronavirus pandemic. Herein, a rapid and vivid detection method that visualizes the presence of a specific DNA sequence is described. The plasmon resonance of gold nanoparticles…
Descriptors: Science Instruction, College Science, Chemistry, Science Experiments
Roupioz, Yoann – Journal of Chemical Education, 2019
A simple bioassay was designed for the detection of adenosine, a human metabolite involved in several physiological processes, on the basis of the functionalization of gold nanoparticles with DNA oligonucleotides selectively binding adenosine. The test was possible thanks to the selective and sensitive binding of adenosine by two DNA…
Descriptors: College Science, Science Instruction, Science Experiments, Metabolism
Aftenieva, Olha; Schletz, Daniel; Meyer, Antonia; Ku¨hne, Tino; Schmalzriedt, Sierk; Niethammer, Manuela; Ko¨nig, Tobias A. F. – Journal of Chemical Education, 2021
In contrast to a macroscopic solid, the color and spectroscopic properties of gold nanoparticles change with size. Here, we propose a teaching platform for high school students (hereafter defined as students, attending secondary school in Europe, preparatory high schools in the US, or any educational institution of a comparable level) that…
Descriptors: Science Instruction, Metallurgy, Color, High School Students
Rattanakit, Parawee – Journal of Chemical Education, 2021
This paper describes an inquiry-based integrated laboratory project for green synthesis, characterization, and applications of silver and gold nanoparticles. In this project, students were able to choose their choice of plant extract as reducing and stabilizing agents, and the students also designed their own experiments. This course gave the…
Descriptors: Inquiry, Active Learning, Science Laboratories, Student Projects
Favero, Giacomo; Brugia, Mattia; Mancin, Fabrizio; Bonomi, Renato – Journal of Chemical Education, 2019
In recent years, nanotechnology has been one of the major subjects of scientific and technological research. Currently, several applications of nanotechnologies are already available on the market. Particularly relevant are the fields of new materials and sensors, which have excellent potential future applications in the biomedical field. This…
Descriptors: Chemistry, Molecular Structure, Technology, Science Activities
Leslie, J. Michelle; Tzeel, Benjamin A. – Journal of Chemical Education, 2016
A guided inquiry-based experiment exploring the regioselectivity of the hydration of phenylacetylene is described. The experiment uses an acidic gold(III) catalyst in a benign methanol/water solvent system to introduce students to alkyne chemistry and key principles of green chemistry. The experiment can be easily completed in approximately 2 h,…
Descriptors: Active Learning, Inquiry, Science Experiments, Chemistry
Zarantonello, Federico; Mancin, Fabrizio; Bonomi, Renato – Journal of Chemical Education, 2020
This work describes a two-year project carried out in an Italian technical high school. Through integrated work, the activity involved the efforts of different teachers and students, particularly those in the Chemical, Electronic, and IT departments. They merged their complementary skills to create an inexpensive device that quickly measures water…
Descriptors: Water, Secondary School Science, Computer Uses in Education, Measurement Equipment
Raubenheimer, Helgard G.; Schmidbaur, Hubert – Journal of Chemical Education, 2014
Probably owing to the prejudice that gold is a metal too noble to be used much in chemistry, the chemistry of this element has developed much later than that of its congeners and neighbors in the periodic table. In fact, before and after the time of alchemists, and up to the 20th century, all chemistry of gold was mainly performed in attempts to…
Descriptors: Chemistry, Investigations, Scientific Concepts, Scientific Methodology